US2571829A - Chiropractic adjustment table - Google Patents

Description

Oct. 16, 1951 T, C, BUCKLEY 2,571,829

CHIROPRACTIC ADJUSTMENT TABLE Filed Jan. 13, 1947 4 Sheets-Sheet l j07l04 if a J3] /54 52 :ai ,-7`5 7] 10375 43 5'/ i 74 72 i 1]] ll 3 j!! 4 .'Sf'1`tgtf: l' 11 f 100 42 i We M 105 59 JJ 154 15a 51 124 J y 15a 5f ,y 54 12J 1571 5 IN VEN TOR. THU/VAS a 50c/a fr l BY ,.782 'A M 174 F' A 155 ATTORNEY.v

Oct. 16, 1951 T. Q BUCKLEY 2,571,829

CHIROPRACTIC ADJUSTMENT TABLE Filed Jan. 15, 1947 4 Sheets-Sheet 2 150 5gg; a 58 '251 /52 15J I J BY7/Z M ATTORNEY.

Oct. 16,` 1951 T, C, BUCKLEY 2,571,829

CHIROPRACTIC ADJUSTMENT TABLE F' led Jan. 13, 1947 4 Sheets--SheeI 5 31 35 3243/12?. /7 32 Itz?l TiL Il ll lLl l 6 i3! X FZ5' 50 y INVENTbR.

7' HUM/1 S C EUC/(L E Y WW2 M ATTORNEY. v

T. C. BUCKLEY CHIROPRACTIC ADJUSTMENT TABLE oct. 16, 1951 l 4 Sheets-Sheet 4 Filed Jan. l5, 1947 f MK R n WM u C,... 2 32./ E, MM y #Y 7B M 4 i L/k .n im m 5 `7 7 www Patented Oct. 16, 1951 UNITED STATES'v PATENT OFFICE CHIROPRACTIC ADJUSTMENT TABLE Thomas C. Buckley, Wichita, Kans.

Application January 13, 1947, `Serial No. 721,810

1 Claim.

patient placed thereon may be placed in any desirable position to best receive the adjustment that is to be given.

A further object is to provide a table of the kind mentioned in which 'the adjustments of the table are hydraulically operated.

A still further object is to provide a table of the kind mentioned vthat is light in weight, simple in construction, easy and not too expensive to make and sell, one that is durable and long lived, very efcient in its work, and one that is neat `in appearance. These and other objects will be more fully described as this description progresses.

'Now referring to the accompanying drawings in which similar numerals vof reference desigi )nate the same parts throughout the `several figures of the drawings;

Fig. 1 is a side View of the table, the table being shown in its down or horizontal position.

Fig. 1A is a side View of the post support -operating device of the table.

Fig. 2 yis a side View of the table, the -table loeing show-n in .its raised or vertical position for receiving a patient.

Fig. 2A is a sectional view through the base frame member of the table and illustratingoneof the pedal controls for .the table hoisting cylinders.

Fig. 3 is a, bottom plan view of the table as shown in Fig. 1. Fig. 4 is an enlarged detail side view of a typical hydraulic cylinder several `of which are employed in eiecting the several adjustments of the table. f

Fig. 5 isa detail side view of the lower end and cap of the cylinder shown in Fig. 4, the view being taken along the line V-V in Fig. 4 and lookf ing in the direction of the arrows.

y Fig. 6 is a detail side view of an alternate mounting for the several cylinders of the table. Fig. '7 is a cross sectional View through the cylinder shown in Fig. 6, and looking in the direction of the arrows. A Fig. 8 is a side view of an electrically operated latch employed on one of the cylinder heads by which the table top is actuated, either as a whole o'r in part. Y Fig.` 9 is a longitudinal sectional View of the bearing supporting the table top.

Fig. 10 is a'cro'ss sectional view of the bearing in lii'g4 A9,'tl1e View being, taken along the line X-X in Fig. 9 and looking the direction ofthe arrows.

Fig. 11 is a top plan view of the .spring tension control .for the chest unit of the .table top.

Fig. 12 is a side View of the spring tension control for the chest unit. of .the table top .as shown in Fig. '11. j

Fig. 13 is afront View of .the manually operated valve unit for the control of the several cylinders employed in adjusting the table, the View .being taken along ,the line XIIIXIIIV in Fig. .15 and looking in the direction .of the arrows.

Fig. 14 is a rear view of the valve unit shown in Fig. 13.

Fig. l5 is an enlarged cross sectional view ofl viding the hydraulic pressure for operating the adjusting cylinders of the table.

Fig. 19 is a side view of the hip unit of the table top, the unit being shown in its flat position.

Fig. 20 is a side view of the hip unit of the table top, the unit being shown in its raised position.

Fig. 21 is a bottom plan view of the adjustable hip unit.

Fig. 22 is an enlarged detail sectional view of the hip unit and detachable mounting therefor, the View being taken alongv the line XXII- XXII in Fig. 21 and looking in the direction of the arrows.

Fig. 23 is a detail sectional View through vthe hip unit, the view being taken along the line XXIII- XXIII in Fig. 21 and looking in the direction of the arrows.

Fig. 24 is a detail bottom plan view of Vthe hip unit and mounting therefor.

Fig. 25 is a side detail view of the head rest shown in its raised position.

Fig. 26 is an end view of the head rest, the head rest being shown in its lowered or flat position.

Fig. 27 is an end view of the head rest, the head rest being shown in its raised position.

Fig. 28 is a detail cross sectional view of a modied form of the cylinder caps in which solenoid electric coil operated valves are employed to con- 3 trol the feed and discharge of the hydraulic liquid to and from the cylinders.

Fig. 29 is an enlarged detail sectional view illustrating more clearly the solenoid operation of the valves mentioned in the description of Fig. 28.

Fig. 30 is a detail fragmentary and diagrammatical side view of the table illustrating the hydraulic lines and electrical control of the valves in the hydraulic lines.

Fig. 3l is an enlarged detail View of an adjustable frame lock employed in the table. the view being as seen from the line XXXI-XXXI in Fig. 3A and looking in the direction of the arrows.

In the drawings the table is shown as having a tubular primary base frame 3| that is substantially U-shaped, the closed end of the U being at the head of the table. The base 3| is supported on suitable leg elements 32 that are attached thereto.

Each leg portion of the U-shaped base element 3| is provided with an upwardly extending curved support element 33, the ends of which are preferably welded to the leg portions of the U- shaped base 3|.

Cross brace elements 34 are positioned between the upper curved portions of the supports 33. and their opposite leg of the U-shaped base 3|.

A T-iron or suitable cylinder support member 35 is positioned between and rigidly attached to the legs of the U -shaped base 3| at a point just in advance of the cross braces 34.

Short aligned bearing and opposed sleeves 36 are welded to the peak of the upper curved portion of the supports 33. The ends of a tubular element 31 are journalled in the tubular sleeve elements 36.

The table tcp has a U-shaped secondary frame element 38, the closed end of the U also being at the head end of the table, and the legs of the U are zig-zag vertically in shaped.

At a point toward the outer ends of the legs of the secondary frame 38 the legs rest on the tubular journalled cross support element 31 and are attached, welded, thereto.

The head end of the legs of the zig-zag U- shaped secondary frame 38 are each provided with a support leg 39 which is adapted to rest on the legs of the primary frame 3|, or if the primary frame 3| should be shortened in the manufacture of the table, the support leg 39 may rest on the oor.

Cross support members 40, 4|, 42 and 43 are positioned between the legs of the U-shaped secondary frame substantially at the points of the bend in the Zig-zag formation of the secondary frame. vA longitudinally positioned support member 44 is positioned midway between the legs of the secondary frame 38 and reaches from the cross member 31 to the cross member 42 and the ends of the support 44 are welded to the cross members 31 and 42.

The table is provided with a chest and a head rest support frame which comprises a pair of vertically positioned standard plates 45 and 46, the lower ends of which are provided with tubular formations 41 in which` the legs of the seccondary frame 38 are slidably received. The standards 45 and 46 are spaced apart and cross members 48, 49, 50 and 5| are positioned between the standards 45 and 46 and the ends of the cross members 48, 49, l] and 5| are Welded to their respective standard 45 or 46. The cross members 48, 49, 50 and 5| are spaced apart in horizontal parallelism with each other and lay in a plane passing through the vertical center axis of the standards 45 and 46 and are for purposes that will later be made obvious.

The ends of a curved tubular element 48a are Welded to the cross frame member 43 and the curved portion of the element 48a extends toward the head end of the table and serves as a hand rest for the patient.

The table is provided with a U-shaped abdominal rest support frame 52, the ends of the legs, or head end of the frame 52 is pivotally mounted on the cross support member 5| and a cross member 52a. is rigidly positioned between the legs of the U and in the central position thereof. The frame 52 is provided With a plate 5217` that extends between the cross member 52a and the closed end of the U and is positioned midway between the legs of the U. The plate 521) is provided with a centrally positioned slot 52e that is longitudinally positioned in the plate 52h, and an abdominal support cushion 53 is rigidly mounted on the foot end of the frame 52. The table is provided with a rectangular chest rest support frame 54, the head end of which is pivotally mounted on the cross member 5|, and a chest support cushion 55 is rigidly mounted on the frame 54. 'The chest support frame 54 is provided with a plate tongue element 56, one end of which is welded to the central portion of the foot end of the chest support frame 54 and extends downwardly and thence rearwardly toward the foot end of the table to a point just below the foot end of the abdominal cushion support frame 52 and is positioned at a slightly downwardly degree of angle thereof. The tongue plate 56 is provided with a centrally positioned longitudinal slot 5l' that is in registry with the slot 52e in the plate 52h.

'I'he table is also provided with a rectangular shaped head rest support frame 58, theV foot end of which is pivotally mounted on the cross member 5|.

The head rest consists of two cushions 59 and 60 that are positioned lengthways of the table with their adjacent edges being positioned along the center longitudinal axis of the table. The cushions 59 and 6!) are carried on rectangular support frames 6| 'and 62, the adjacent corners of which are pivotally mounted on the head rest support frame 58. The adjacent corners of the head rest frames 6| and 62 are provided with meshing gear segmentsY 63 and 64 that are rigidly mounted on the frames 6| and 62, whereby the outer edge of one of the head rest frames 5| or 62 may be raised and the opposite outside edge of its companion frame will likewise be raised or ,tilted as illustrated in Fig. 27.

The head rest support frame 58 is provided with a gear segment 65 that is rigidly attached thereto with its center axis being substantially the same as that of the gear segment 63. The under side of the head rest portion 59 is provided with a latch bolt element 66 that is slidably carried in bracket mountings 61 and 68, and a spring 69 is compressed between the bracket 61 and the latch bar 66 to urge engagement of the inner end of the latch bar between the teeth of the gear segment 65 to hold the head rest sections 59 and 69 in an adjusted flat or opposingly tilted positions as shown. The outer end of the latch bar' is provided with a nger hold 1|) by which the latch bar 66 may be pulled from engagement with the gear segment 65 so that the head Arest portions 159 and 60 may Ibe rocked to selected adjusted positions.

, jThe-tableis also provided `with arectangular shaped leg `support fr-ame 1|, the `foot vend of which is pivotally mounted onslide velem-ents i12 and u13 that `are slidably mounted on ytheirame legs 38. Aleg support cushion 1"4 is rigidly attached to the lf-oot end ofthe leg support frame 1|. The table is also provided with a-hi-p support cushion 15 that is positioned at the head end of the leg support cushion and is attached -theretolby a combination hinge and-demountable 'device therefor vwhich-comprises a pair of curved leg elements 16 and 11 one end of which isi-provided with hinge elements 18 and'19 which are attached to the head end oi the leg support frame `element 1I. The other end of the legs 16 and 11 are provided with ball'formations 80 and 8|. The head end of thelegs 16 and 11 are provided with brackets 8i and 83 that-are rigidly attached to the legs 16 and T11. The table is providedwith a synchronizing cross bar 84on the ends of which is formed depending legs 85 and 86, each of which are provided with ratchet teeth 181. The upper ends-of the legs'85 and-8b` are pivotally mounted at 88 on the brackets 'i12-and 83. A spring 89 is positioned around the pivot point 88 and engages the legs 85 and 88 and 'the brackets 82 and 8,3 are so ltensioned as to urge movement of the legs 85 and 89 in a forward direction so as to cause the teeth 81 to engage and rest on the edge of the frame 1I to support the hip cushion in elevated or tilted adjusted positions.

The hip support cushion 15 is provided with sliding movement of the slide 90,-will slide under .1

orfrom under the ball 80 or 8| tohold or release the ball 80 or 8| from the cushion 15. A spring 92 is positioned back of each slide 80 and is tensioned to urge outward movement of the slides 90 to move and retain the partial ball socket V9| under the balls 80 and 8|. The slides 90 are provided with outwardly directed push rods 9,3, the outer ends of which project from the cushion 15. The inner .ends of the push vrods v03 are `U-.sh'aped vand straddle the ball 80 or `8| and engage the sides of the slide 90 to actuatelthe sliding motion of the slide `Sill. The cushion 15 Ais ralso provided with a leaf spring94 that overlies the slide 90 and balls 80 or 8| and one end thereof is adapted to spring downwardly in front of `the topedge ofthe ball seat 9| to hold 'the slide v9i! in a retracted position when the ball is removed therefrom.

The table is provided with a foot support plat- 'orm 95 that is rigidly attached to and supported Vby a pair of strap iron mountings 96 and 91 which run along the outer side edges ofthe platform 95. The foot or outer ends oi the strap iron supports are provided with downward .directed end portions 96a and 91a. which rest on the foot end cross member 43 of the table 'frame 38. The inner ends of the foot support strap members 96 and'91 are bent downwardly as in dicated at 98 and are seated in vslots 99 in the `ends of a tubular element |00 which is positioned between the legs of the frame 38 and .is eccentrically mounted on a rod IOI thatpa'sses through the tube |00 and is'weldedto the'tube 4at a 'point diametrically across `the 'tube from the slots as. -Tne ends of "the rod lol project beyond #the 'ends vof tube |00 andere `journailed inthe legs ofthe frame 38.

Theend 'of the lower leg of the Z-sha'ped -e'lement v"|02 is welded `to the tubular element I0`0-. The .upper legof the Z--shaped element is curved and fbiiurca'i'led 'and the bifurcations straddle Va piston rod |03 and are-seated in a 'groove in the piston rod |03 so that as therpistonrod |03 moves it will lrock the Z-shaped element and tube |00 an move the foot platform to the 'dotted po'sition'shown in Fig. 1-A.

The'table is provided with a helical spring 95a, one end-of which is attached to 'the -cross member 4310i the "frame 38and the other end of the spring 95azis attached to the foot platform T95. The spring 95a'serves to urge movement :of the foot 4platform lin the direction vof the arrow IA as will later be described.

Rigidly mounted on the upper end of the piston rod |03 is a supplementary leg support cushion |04. The lower end of the-pistonfrod |03 is connected to a piston that is movable in a cylinder |05whic`h vis rigidly mounted on the cross frame member 42 of the frame work 38.

Rigidly attached to the bottom and at opposite sides of the cushion v|04 is one end of a pair of downwardly projecting -guide rods I05a and |8517. The rods |0511y and |051) slidably -pass through holes in the cross frame member 42, andthe bottom ends of the rods |05a and |051) have la head thereon to prevent the rods |05a and :|0511 from slipping entirely from the cross frame member 42. The rods |95a. and |051)` are provided with compression springs |050 and |0'5d that arepositioned around the rods |050, and |0512 and are under compression `between the heads of Athe rods I05a and I05b and the cross frame member 42. The springs I5c and |5d serve to retract the piston and piston rod |03 in the cylinder |05 as will later be described.

The 'table is provided with a second cylinder |06 that is horizontally positioned and one end ofthe cylinder |06 is pivotally mounted at |01 lbe adjustably moved lengthway of the frame 38.

The other end of the cylinder |08 is provided with a cap element |09 that is rigidly mounted thereon and through which the piston "rod |08 is slidably operable. The cap |09 is provided with an F-.shaped `bracket ||0 that is rigidly attached thereto.

'The table isalso provided with a pair of helical springs |96a and Illib` that are positioned, one oneither side of the table and their correspond'- ing ends are attached, vone to the cross frame member 42 and the other ends are connected to the rectangular frame 1| rand are so tensioned -as to move the frame 1I Ytoward the foot of the machine.

The table is provided with a third cylinder III,'the lower end of which is pivotallymounted at I'|2 on 'the cross frame member 35. The cylinder III is provided with a long tube-like `piston I I3, the lower end of which is closed and the upper end of which receives the central leg 'ofthe "F-'shaped bracket 'I I0, and a pivotal pin A| I4 #passes through' the adjacent or associated ends ofthe piston I I3 andthe central legyof The end leg of the F-shaped, bracket ||0 is provided with a latch bar I I that slidably passes therethrough and the latch bar ||5 in reality is the core of a solenoid electric coil IIS which is rigidly mounted on the cross frame 4| of the table. The solenoid coil IIB serves to operate the latch bar ||5 to engage it with the end leg of the F-shaped bracket ||0.

The solenoid coil ||6 has two electric' lead wires B5 which is the same as, or connects to the Wire B5 in Fig. 2A, the other YWire |||iav of the solenoid coil ||6 is one of the feed Wires for the coil I I6, the wire B4, of Fig. 2A, is the other feed Wire for the coil I I6. The rear of the solenoidcoil I I5 is provided with a spring ||1 which also engages the rear end of the core or latch bar ||5 and is so tensioned as to normally retract or hold the latch bar I I5 from engagement With the end leg of the F-shaped bracket |||l.

The table is also provided with a fourth cylinder ||8 that is normally horizontally positioned and one end oi the cylinder I I8 is rigidly attached to the cross frame member 40. The cylinder is provided with a piston and piston rod ||9, the outer end of which is rigidly attached to the frame member 4B of the slide frame 45-45-48.

A pair of helical springs ||8a and ||8b are positioned, one on either side of thetable with their corresponding ends connected to the cross member 40 and the other corresponding ends being connected to the slidable cross member 48 so as to move the frames 45 and 43 in a direction toward the foot of the table.

The table is also provided with a fth cylinder |20, one end of which is pivotally mounted at |2| on the cross frame 49 of the table. The cylinder is provided with a piston and piston rod |22, the outer end of which is pivotally attached at |23 to a slide element |24 that is slidably attached to the plates 56 and 52h and is operable in the slots 51 and 52e in the plates 56 and 52h.

The table is provided with a lock for stationing the slide |24. The lock consists of a plate |24a having a slot |2417 that is longitudinally positioned therein, and a bolt |24c is passed through the slot |24b and threaded into the guide plate 52h so that the plate |2411 may slideA cross ways of and on the guide plate 52h in or out of the path of travel of the slide |24 to obstruct or admit passage of the slide |24 along the slot |241). Rigidly attached to the slide plate |24a is a rod |24d, the outer end of which slidably passes through the frame element 52, and an -L-shaped hand hold |24f is formed on the outer end of the rod |24d for operating the slide plate |24a.

The cylinder |20 is provided with a U-shaped rack element |25. One leg of the U |25 is rigidly 4attached to the outer end of the piston rod |22, `and the other leg of the U |25 is provided with 8 above described. Another spring |3| is attached, one end to the rounded end of the U |28 and the other end of the spring |3| is attached to the cross member 5| of the slide frame 45-46-1-5I and serves to urge a swinging movement of the cylinder |20 toward the head end of the table.

The table is provided with a sixth cylinder |32, the lower end of which is pivotally mounted at |33 on the cross member 50 of the slide frame 45-46-50. The cylinder 32 is provided with a piston and piston rod |34, the outer end of which is pivotally connected at the point |35 on the head end cross member of the head support frame 58.

The cylinder |32 and piston rod |34 are provided With a U-shaped guide element |34a, one leg of the U being rigidly attached to the outer end of the piston rod |34, and the other end of the U is provided with a hole in which the cylinder |32 is slidably mounted. One end of ahelical spring |33a is attached to the lower end of the U-shaped guide |34a and the other end of the spring |33a is attached to cross support member 50, and acts to retract the piston rod |34 Y when the hydraulic pressure is released from the cylinder |32.

The table is provided with two multiple valve blocks |35 and |31. The valve block |36 is rigidly mounted on the head end of the frame member 3B, and the valve block |31 is rigidly mounted onthe foot end of the frame member 3|. Each valve block |36 and |31 is provided with a pressure feed passage |38 and a return passage |39. The valve block |36 has four pressure outlet valves |40, mi, |42 and |43, and four return valves |44, |45, M6 and |41. The valves men;- tioned are preferably needle valve type of valves such as illustrated in Fig. l5. The discharge and return passages |48 and |49 of the valves |40 and |44 leads to one end of a tube |50, the other end of which connects With and opens into the cylinder |32. Similarly, one end of a tube |5| joins the discharge and return passages of the valves |4| and |45 and the tube |5| leads to and opens into the cylinder |20. One end of another tube |52 connects with the discharge and intake passages of the valves |42 and |45, and the tube |52 leads to and opens into the `cylinder l. Also one end of a tube |53 joins with the discharge and intake passages of the valves |43 and |41,

and the tube |53 leads to and opens into the cylinder |05.

The valve block |31 contains three sets of dis'- charge and return valves that are constructed and connected together the same as illustrated in Fig. 15. In the valve block |31 the pressure disa hole in which the cylinder |20 is slidably positioned. The central and outside portion of the U |25 is provided with outwardly directed ratchet teeth |26. A spring |21 is connected, one end to the lower leg of the U |25 and the other end to the cross slide framevmember 45 and serves to retract the piston rod |22 into the cylinder |20.

A U-shaped element |28 straddles the cylinder |20 and the rack |25, and a ratchet plate |29 is rigidly mounted between the outer ends of the U |28 and is adapted to engage therack teeth 'l5 tric circuit ofthe wiresnB4` andBS.

charge valves are numbered |54, |55 and |56, and the return valves are numbered |51, v|58 and |59.

Each valve |40, |4|, |42, |43, |44, |45, |46, |41, |54, |55, |55, |58, and |59 is provided with an operating foot pedal |40a, I4Ia, |42a, |43a, IMQ, |45a, |4611, |4101., |54a, |5511, |55a, |51a |58a an '|59a respectively.

In Fig. 2A is shown the valve pedal rocker arm |55a that is pivotally mounted at |14 in a bracket |15 that is rigidly attached to the frame member 3|. A push button electric switch B is rigidly attached to and supported by the frame mem'- ber 3| in such a manner that in the rocking motion of the foot lever |55a, the lever |5511 will engage and press the push button BI upwardly to such a point that the contact point B2 will contact the contact point B3 to close the elec,-

One end of a tube |60 joins withthedischarge and intake passages of the valves |54 andv |51", and the tube |60 leads to and opens into the cylinder 8. One end of another tube l'l'jbins with the pressure discharge and. return passages of the valves |55 and |58, and the tube |6| leads to and joins with the tube |52 which isa line between the valves |42 and |46 and the cylinder One end of another pipe line |62 joins with the pressure discharge and return passages of the valves |56 and. |59., and the pipe line |52 leads to and opens into the cylinder |06.

Each pressure discharge Valve |40, |4`| |42, |43, |54, |55 and |56 is providedwith a rocker arm such as shown at, |63. in Fig. 15. Each rocker arm |63 is pivotally mounted atv |64` on a rocker arm support rod |65. The upper end of the rocker arm |63.v is pivotally connected. at

|66 to the outer end of a link |61, the other end" of which is pivotally connected at. |68'to a needle stem |69 which slidably passes through a packing gland and across the liquid pressure passage |38 to seat in a valve seat |1| between the passages |38 and |48. The bottom end of the rocker arm |63 is curved rearwardly to substantially a horizontal position, and the end thereof rests on the upper end of a standard |12 which is an integral part of a foot pedal lever |13 that is pivotally mounted at |14 on a mounting that is rigidly attached to the frame element 3| of the table.

Each foot pedal lever |13 is provided with a foot pedal |82 that has a vertical shaft |83 that is integrally formed thereon and slidably passes through a hole in the foot pedal lever |13 and a set screw |84 is threaded into the end of the foot pedal lever |13 to engage the foot pedal shaft |83 to bind and hold. the foot pedal in adjusted positions above the floor on which the table rests.

Similarly each return valve |44, |45, |46, |41., |51, |58 and |59 is provided with a rocker arm |16 that is pivotally mounted at |11 on a rocker arm support element |18 that is rigidly mounted on its respective valve block |36 or |31. The upper end ofthe rocker arm 16 rests adjacent the outer end of a needle valve stem |19,

which is slidably carried in a packing gland |80', and extends across the return passage |139 and seats in a valve seat I 8| that is positioned between the return passages |39 and |49.

Hydraulic pressure and a liquid reserve tank is employed for operating the cylinder of the table. This tank and pump may be separate from the table and may serve several such tables, either separately or simultaneously. The pump and tank will be as indicated in the diagram shown in Fig. 18 in which the pump is represented as being a gear pump |85 having a discharge pipe |86 that connects with the pipe line |38 which leads to and connects with all the pressure valves of the table or several tables.. At |39 is shown a return line which connects with all the return valves of the table or several tables and connects with or discharges into a reserve and return tank |81. A pipe |88 connects between the tank |81 and the feed or intake of the pump |85. Connecting between the pipes |86. and |88 is a. pipe line |89 in which is an adjustable spring loaded check valve |98. The adjustment of the spring pressure on the check valve |90 may be employed to adjust the amount of hydraulic pressure maintained in the pressure side of the hydraulic system for the operation of the table or tables.

shown in Fig. Zand/thepatient is standing on the 7;).vx pedal |56a may be pressed downwardly, where- All the, cylinders. employed in the table are hydraulic operated cylinders and two types of mountings for the cylinder are employed, one type is a pivotal mounting as illustrated in Fig-' ures 4 and 5, andr the other is a rigid type ofi mounting illustrated. in Figures 6` and 7. In Figures 4 and 5 is. shown the cylinder D which corresponds with the cylinders |32, |20., |06.and

200 and 20| which, fit between a second pair of ear-like elements 202 and 203 that are welded to the supporting frame element such as E, and two bolt'sare employed, one passing through each of the ears 250 and 202" and the other through the ear-like elements 20| and 203 to form thev pivotalf mountingv forl the cylinder D. The head |99 is provided with a tube coupling 204 to receive av tube or pipe, not shown in Figures 4 and' 5, for the hydraulicv feed' and return. F" represents the. piston rod for the cylinder.

In4 Figures 6v and 7 the cylinder D corresponds` with the cylinders H8 and' |05, and is shown as having a head` [99a having the tube or pipe coupling 204Y to receive the feed and return hydraulic line the same as described for Figuresvr The cylinder D is provided with aV 4 and 5. sleeve 205 that is pressed thereon to make, it

rigid. with the cylinder D', and bolts 206 and.

201 are passed through the supporting elements, not shown, of the table and through the sleeve 205 and theA ends ofthe bolts'rest in ind'entures in the cylinder D to forma rigidmounting there.- for.

The. operation ofjthe table` is as follows. The

vfoot pedal |5511 is pressed downwardly and inV this action the electric switch B rst closesthe i switch B to energize the solenoid coil ||6 and" move the latch bar ||5 into locking engagement.

The table havin-g beenV thus inclined; the patient may stand' on the platform 95 andthen` lean back against. the cushions of the tablewhereupon* thefoot pedal. |58a'may be pressed, whereupon' the return valve |58 will be opened and the weight of the patient and table top will rock the table top to a horizontal position, whereby the piston and piston rod H3" will be moved into the`A cylinder forcingjthe liquid in the cylinderA Ill out through the pipe |.6 through the return valve I 5S and through the return line |39 into theV reservoir |81 for future use.

While the tablev i's in its raised position as' platform 95, the foot. pedal |54a is pushed downwardly, whereupon the pressure valve |54 willbe; opened andhydraulic pressure will flow throughV Y f, the pipe |60" into the cylinder |18, whereupon the piston rod H9' of' the cylinder H8' will` be' extendedand move the framesY and 46, and theV cushions thereon toward the head end of the table and to the desired place to t the' patient;

whereupon the foot pedal |540, maybe releasedand the valve |'54 is closed', whereby the frames 45 and 4.6 are l'ockedand' held in their adjusted:`

position.

The above adjustment having been: made, the

These cylinders have a head |99 on whichL is. integrally for-med a pair of.' ear-like elements' 1l upon the valve |56 will be opened and hydraulic pressure is therefore admitted into the tube |62 and the cylinder |06, whereupon the piston |08 is projected and moves the frame 1| and cushions thereon toward the head end of the table, and when the frame 1| and cushions thereon have come to the desired position the foot pedal- |560. may be released and the frame 1| and cushions thereon are locked in their adjusted positions.

The above adjustments having been made, the foot pedal |4313'l may be pressed downwardly whereupon the valve |43 will be opened and hydraulic pressure will be admitted into the tube |53 and cylinder |05, whereupon the piston rod |03 will be projected to raise the cushion |04 to the desired height, whereupon the pedal |54c may be released and the cushion |04 will be locked in its adjusted elevated position. Simultaneously with the adjusting action just described, the piston rod |03 will raise the curved end of the Z-shaped element |02 to rock the Z- shaped element |02 and the tubular cam element to move the foot platform 95 upwardly and forwardly, whereupon the sloping elements 93a and 91a will slide on the cross frame member 43 to move the platform 95 from the feet of the patient.

The above adjustments having been made, the foot pedal |42@ may be pressed downwardly, whereupon the valve |42 will be opened and therefore hydraulic pressure will be admitted into the tube |52 and cylinder l l, whereupon the piston rod ||3 will be projected and will tip the head end of the frame 1| and cushions thereon upwardly to the desired position, whereupon the pedal |42a may be released and the frame 1| will be locked in its desired position.

The above adjustments having been made, the foot pedal |4|a may be pressed downwardly, whereupon the valve 4| will be opened and will admit hydraulic pressure into the tube |5| and the cylinder |20, whereupon the piston rod |22 will be extended and will tip the foot end of the frames 54 and 52 upwardly to a desired position, whereupon the foot pedal |4|a1 may be released and the valve |4| will close and the frames 54 and 52 will be locked in their adjusted position.

The above adjustments having been made, the head cushion support frame 58 may be tiltably adjusted either up or down as desired in view of the fact the piston rod |34 is partially extended in its normal position. In view of this the foot pedal |40a may be pressed downwardly, whereupon the valve |40 will be opened and hydraulic pressure will be admitted into the tube |50 and cylinder |32, whereupon the piston rod |34 will be extended and will tip the head end of the head cushion support frame 58 upwardly to any desired height, whereupon the foot pedal |40a, may be released and the head cushion support frame 58 will be locked in its adjusted position; or, if desired, the foot pedal |44a may be pressed downwardly whereupon the return valve |44 will be opened and the springs 133e will pull the piston rod |34 into the cylinder |32 to drop the outer or head end of the frame 58 to any desired position, whereupon the foot pedal |44a may be released and the frame 58 will be locked in its lowered position.

The above adjustments having been made, the adjustment of the head cushions may now be made. This is done by rst pulling the latch 66 from engagement with the gear segment 65 whereupon the outside edges of the head support cushions may be rocked upwardly or downwardly to form any degree of a v-shaped head rest as indicated in Fig. 27. The movements of the cushions 59 and 60 will always be equal due to the synchronization of the cushion movements by the meshing gear segments 63 and 04. The cushions 59 and 30 having been adjusted to the desired position, the latch 56 may be dropped into engagement with the gear segment 65 and the head support cushions are then locked in their adjusted position.

The hip support cushion 15 may be further adjusted in an upward rocking action by lifting upwardly on the head end of the hip support cushion 15y whereupon the cushion 15 will rock upwardly about the center axis of the hinges 18 and 19 and in this action the ratchet teeth 81 will ratchet across the edge of the cross frame member 1| and hold the cushion 15 in any elevated position.

There are occasions when it is desirable to remove one or the other side of the hip support cushion 15 from its mounting or supporting element 30 or 8| and turn one end or the other of the cushion 15 diagonally across the table and rest on the leg support cushion 14. This may be done by pressing the selected shaft button 93 inwardly, whereupon the ball seat slide 90 moves inwardly and from under its respective ball or 8|, whereupon the adjacent side of the cushion 15 may be raised and disengaged from the ball 80 or 8| and swung over and rested on the leg support cushion 14. As this side of the hip support cushion 15 is raised and the ball 80 or 8| is thereby removed from the hip support cushion 15, the free end of the spring 94 will spring downwardly in front of the upper edge of the ball seat 9| and hold the ball seat slide S0 in its retracted position against the pressure of the helical spring 92. Now as the hip support cushion is swung back to its original position and remounted on the ball 80 or 8|, the ball enters the hip support cushion 15 and as the cushion 15 is moved downwardly the ball 80 cr 8| engages the leaf spring 94 and raises it, whereupon the leaf spring 94 disengages the ball seat slide and the helical spring 92 moves the ball seat slide 90 outwardly so that the ball seat 9| is under the ball S0 or 8| and the cushion 15 is again mounted on the balls 50 and 8|.

In giving a patient treatments while on the table there are times when it is desirable that the chest and abdominal supported cushions 53 and 55 will be yieldably supported and the foot end of the cushions 53 and 55 will give or swing downwardly under a downward pressure on the patient. The action just mentioned may be accomplished by pulling the rod |24d and latch |24a outwardly whereupon the latch |24a is moved from in front of the piston slide |24 and the slide |24 under downward pressure exerted on the cushions 53 and 55 will slide footwardly in opposition to the tension of the helical spring |3| that supports the cylinder |20 in an inclined position. The effective tension of the spring |3| on the slide |24 may be increased or decreased by moving the yoke and latch |28|29 up and down the U |25 to engage the ratchet teeth |26 at adjusted distances from the pivotal mounting |2| of the cylinder |20.

The foregoing table adjustments were such that a patient lying on the table is in a desired position to receive his treatment. After the treatment is nished the foot pedal |450. may be pressed downwardly, whereupon the return valve |45 is opened, whereupon the springs |21 will retract the piston rod |22 and move the cushions 53 and 55 totheir original or horizontal position. In this action theY liquidin the cylinder |20 will be forced therefrom through the tube |5I, return valve |45 and back to the reservoir tank itl.

Now the pedal Ia may be pressed downwardly, whereupon the return valve |46. will be opened and the weight of the cushions 14 and 15 and the frame 1| will press the piston rod ||3 into the cylinder III, whereupon the, liquid in the cylinder I |A will be forced therefrom through the tube |52, return valve |46 and thence to the reservoir |231. Vifhen the cushions 14' and 15 have returned to their original or desired position the return valve pedal |490' may be released and the cushions 14 and 15 and their frame 1| will be locked in their lowered or adjusted position.

Now the return valve pedal |410, may be pressed downwardly, whereupon the return valve |41 will be opened and the springs |050 and |05d will pull the foot support cushion |04 downwardly and move the piston rod |83 into the cylinder |05, whereupon the liquid in the cylinder |35 will be forced therefrom through the tube |53 and return valve |61 and into the reservoir |81. When the cushion |04 has dropped to the desired position, the foot pedal |41a may be released and the foot support cushion |84 will be locked in its adjusted position.

Simultaneously with the action just described the cushion I 54 will engage the upper curved leg of the Z-shaped element |02 and rock it downwardly to partially turn the tubular cam and therefore draw the platform 95 downwardly, whereupon the inclined elements 95a and 91a will slide on the cross frame member 43 and this action takes place, the movement of the cam H30 will move the platform 95 against the patients feet.

Now the pressure valve foot pedal |55a may be pressed downwardly, and in the fore part of this action the electric switch B will be closed, whereupon the electric solenoid coil I |55 will be energized and move the core or latch bar 5 into engagement with the F-shaped member |59, and as the foot pedal |55a advances in its downward movement, the pressure valve |55 is opened and hydraulic pressure will be admitted through the tube I9! and into the cylinder whereupon the piston rod I|3 will be extended therefrom and will rock the Zig-zag lJ-shaped frame 30 to its raised position as shown in Fig. 2. When the frame 38 has been raised to its desired position, the foot pedal I55a may be released` and the pressure valve |55 will close and the frame 3&3 will then be locked in its raised position.

Now the return valve pedal |59a may be pressed downwardly, whereupon the return valve 59 will be opened, and the springs I 06a and |06b will move the cushion frame 1| downwardly and therefore move the piston rod |08 into the cylinder |36, whereupon the liquid in the cylinder |06 will be forced therefrom through the tube |62 and return valve |59 and thence to the reservoir |81. When the cushion frame 1| has moved downwardly to the desired position, the foot pedal |59a may be released, whereupon the return valve |59 will be closed and the cushion frame 1| will be locked in its adjusted position.

Now the return valve foot pedal |51a may be pressed downwardly, whereupon the return valve |151 will be opened and the springs ||8a and' ||f8b will pull the slidable support frame I5- I6---ll8- in a 4forward direction whereupon the piston rod" |9 will be pressed into the cylinder ||B whereupon the liquid inthe cylinder I I8 will be forced there-` from through the` tube |60 and return valve |151 and thence to the reservoir |81. When the frame 45-6-48 has moved to the desired position thev foot pedal I51a may be released, whereupon the return valve |51 will close and the frame 05-46-43 will be locked in its newly adjusted position. The tableY is now ready for reuse and to vbe readjusted as above described.

vIn Figures r28, 29 and 30 is shown a modiiied form of valve control which is the same for all the cylinders of the table. This form of control isfelectrical and the valves are operated byv sole noid coils, each of. which is controlled by pref-n erably an electric push button. In Figures 28 and 29, C represents any one of the cylinders |05, |06, III, ||8, |20 or |32, each of which have a head 9| in which is formed a pressure hydraulic passage |92 and a return passage |93, and the hydraulic pressure line |38 opens into the pressure passage |92 and connects with the pressure discharge |86; also the return line |39 opens into the return passage |93 and connects with the reservoir |81. If desired, the U-shaped tubular frame members 38 and 3| may be sealed at the center and one half of the tubing of each frame may be used as the hydraulic pressure supply line and the other half may be used as the return line, and short tubing may be connected between the frame tubing and various pressure and return passages |38 and |39 of the cylinder heads |9I.

In the pressure passage |92 is a valve |94 that is adapted to open and close the passage |92 by the longitudinal movement thereof. The valve |94 is movable or urged to move to the closed position by a spring |95 that is under compression between the valve |94 and the rear wall of the passage |92. The stem |94a slidably passes through the side of the cylinder head |9| and becomes the core of a solenoid coil |96 which is rigidly mounted on the side wall of the cylinder head 9|. The return valve |91 and associated parts are identical to those just described for the pressure valve, the solenoid coil for the return valve being designated at |98. Each coil |96 and |98 is operable from a respective push button in its electric circuit. The push buttons being carried preferably in groups such as indicated at X and Y as will readily be understood, and the cylinders and their piston rods will perform the same as previously described for the manually operated foot pedal valve operating pedals.

Such modifications of my invention may be employed as lie within the scope of the appended claim without departing from the spirit and intention of the invention. Now having fully shown and described my invention, what I claim is:

In a chiropractic adjusting table of the kind described; said table having in combination, a primary base frame and a rockable U-shaped secondary frame having substantially Z-legs that are parallel and are in registry with each other, said primary frame having vertically positioned supports stationed thereon at the foot end of the frame and being positioned between the said supports and the upper legs of the Z formations of the secondary frame being pivotally mounted on the uppermost portion of the said supports, a slide support frame, said slide support frame being slidably carried on the lower legs of the Z formation of the secondary frame, said slide 15 frame being substantially the same height as the said Z formation, individual head, chest, abdominal, hip, leg and foot cushions, a foot platform, and a frame for each of said cushions, the foot end of the head cushion support frame and the head end of the chest and abdominal cushion support frames being pivotally mounted on the upper end of said supports on the said slide frame, the hip and leg cushion support frame being pivotally mounted at its foot end and being slidable longitudinally on the said secondary frame, and means rigidly carried by the said secondary frame for the support of the foot support cushion, said foot platform being adjustably carried by the foot end of the said secondary frame and at an angle obtuse to the general linear dimension of the secondary frame, said foot platform being adjustable toward and away from the said foot support cushion, and means for sliding and holding the said slide frames and hip and leg cushion support in adjusted positions on the secondary frame.

THOMAS C. BUCKLEY.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS

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