US1098477A - Apparatus for elevating and conveying invalids. - Google Patents

Description

P. GASHMAN.

APPARATUS FOR ELEVATING AND CONVEYING INVALIDS.

APPLICATION FILED APR. 11, 1913.

1 ,O98,477, Patented June 2, 1914.

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P. GASHMAN.

APPARATUS FOR ELEVATING AND CONVEYING INVALIDS. APPLICATION FILED APR. 11, 1913. 1,098,477; Patented June 2, 1914.

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PATRIGK UASHMAN, 01F HUUSTONIA, MISSOURI.

APPARATUS FOR ELEVATING' AND CONVEYING lNVl'iL-IDS.

resents,

Specification of Letters Patent.

Patented June 2, 1914.

Application filed April 11, 1913. Serial No. 60,408.

To all whom it may concern Be it known that I, PATRICK CAsHMAN, citizen oil the United States, residing at lt-loustonia, in the county of Pettis and State of Missouri, have invented certain new and useful improvements in Apparatus for Elevating and Conveying lnvalids, of which the following is a specification.

This invention relates to an apparatus for use in hospitals, sick rooms and other like places wherein it is desired that invalids should be lifted or conveyed from place to place.

The primary object of the invention is to provide a cheap, simple and convenient apparatus for lifting a sick or wounded person from oil a bed, and conveying him to another part of the room, or to an operating room in a hospital, without the slightest exertion or fatigue on the part of the pa tient.

A further object oi my invention contemplate the provision of suitable means for regulating or adjusting the stretcher upon which the invalid is supported, thereby supporting the invalid in a manner least injurious.

it still further object oi: the invention resides in the provision of suitable mechanism for controlling: the rotation of a drum or spool employed in connection with the in vention.

To accomplish the above I provide a stretcher or sling, preferably composed of bed clothes or other suitable material of sutfieient strength to support the invalid. After forming the stretcher with the invalid resting thereupon, the said stretcher is elevated by the operation of the drum or spool above mentioned and moved from place to place by operating or otherwise imparting movement to the said stretcher. Means is also provided for adjusting the stretcher as desired for either elevating or lowering" one end of the stretcher as is best adapted for the patients welfare,

The above and additional objects are accomplished by such means as are illustrated in their preferred embodiment in the aecompanyinp; drawings, described in the following' specification and then more particularly pointed out in the claims which are appended hereto and form a part of this ap plication.

in describing my invention in detail reference will be had to the accompanying drawings wherein like characters denote like or corresponding; parts throughout the several views, and in which Figure 1 is a side elevation of an apparatus constructed in accordance with my invention; Fig. 2 is an end view, with the supporting bar and stretcher broken away; Fig. 3 is a detail elevation of the supporting pulley: Fig. i is a sectional view of the stretcher; Fig 5 is an elevation, parts being shown in section oi the stretcher adjusting mechanism; and Fig. 6 is a detail perspective view of the clamping bar.

Proceeding now to the detail description of the drawings, wherein is illustrated the preferred embodiment of my invention the numeral 1 designates a pair of uprights or standards, disposed in spaced relation for siu portinp; and elevating therebetween a suitable truck or supporting bar 2, the said bar being detachably connected to the standards 1 by means or depending shank portions 3 fitting; within a recess 4i formed upon the upper extremity of a suitable connecting bar 5, the latter being supported vertically upon the standards 1 by means of unions 6. The said standards or uprights 1 are preferably of an inverted tl-shape, the

extremities of which have formed integrally therewith or secured thereto suitable base portions 7 upon which the entire supporting frame or apparatus is mounted.

A horizontally extending shaft 7 is journaled within. suitable brackets E3 secured to one of the uprights 1, the said shaft extending from one to the other of the extensions thereof and having keyed or otherwise secured thereto a spool or drum 9, the can tremities oi the said drum having ratchet teeth 10 formed intepurally therewith. the teeth of one ratchet 10 being; arranged for cooperation with a suitable pawl, to be hereinafter fully described, upon the turning of the drum in one direction, while the teeth of the other of the said ratchet are disposed oppositely or to cooperate with a suitable pawl upon the rotation of said drum in a reverse direction.

A suitable supporting traveling wheel 11 is arranged upon the supporting bar 2 of the apparatus frame and has depending there from a double pulley 12 the latter being con nected to the supporting pulley 11 through the medium oi a hook 153. A. i. ope or cord 14 of the desired strength has one end secured to the drum 9, the other end eutending as is shown in Fig. 1 of the drawings to the pulley 12, over which it passes and depends to a second pulley 15. From the pulley 15 the rope extends upwardly and again passes over the pulley 12, and again depends to a point 16 where it is secured to the pulley 15, this arrangement allowing the said pulley 15 to be raised and lowered by the operation of the drum 9 accomplished by turning a handle 17 formed upon one end of the drum shaft 7. A hook 18 depends from the pulley 15 for the purpose of supporting a yoke 19, the latter forming bearings for a transversely extending shaft 20 having a handle 21 formed upon one end thereof for rotating the said shaft as desired. A second drum 22 is loosely mounted upon the shaft 20 between the arms of the yoke 19, the extremities of the said drum being flanged to form plates 23 for locking the drum against rotation when desired. The said plates 23 are provided with a plurality of uniformly spaced apart apertures 2 1 through which a pin 25 is inserted, the said pin extending through the yoke-arms for locking the plates and the drum against rotation. Ropes 26 are secured to the drum 22 and extend from each side thereof to a point 27 where they are secured to suitable hooks supported by a stretcher frame 28, the latter having a pair of horizontally extending parallel grooved members 29 formed upon the edges thereof. By the provision of the grooved members 29, it will be seen that the bed material upon which the invalid is resting may be secured or locked within the stretcher frame by the insertion of clamping bars 30 within the said grooves when the bed clothes or other material is placed over the said groove members 29.

Should the stretcher, after the invalid is placed thereupon be supported at an angle or upon an incline, the same may be quickly and easily righted by the operation of the crank handle 21 of the shaft 20. By turning the shaft 20 in either direction, one end of the stretcher frame is elevated, while the opposite end of the said frame is simultaneously lowered, whereupon the said frame, when properly adjusted is locked in such adjustable position by the insertion of the pins 25 through the plates and yoke 23 and 19 respectively. After placing the invalid upon the stretcher as above described, the latter may be elevated by the rotation of the drum 9 accomplished through the medium of the handle 17 formed upon one end of the drum shaft. When elevated to the desired height, a further rotation or unwinding of the drum is prevented by means of a pair of pivoted pawls 31 mounted upon a bar 32 supported by the standard 1 directly above the drum shaft 7. By swinging one of the pawls 31 until the end thereof engages the ratchetteeth 10 of the drum 9 it will be seen that rotation of the said drum in one direction is prevented, while rotation of the drum in the opposite direction is prevented by the engagement between the other pawl 31 engaging the oppositely disposed teeth above mentioned. Should it be desired that but one of the pawls engage the teeth 10, suitable catch mechanism 33 is arranged upon the cross arm of the upright 1 for suppor ing the said pawl out of engagement with the said teeth.

It will be seen from the above, taken in connection with the accompanying drawings that the operation of the apparatus is extremely simple; that an invalid may be elevated and conveyed from place to place without any exertion whatsoever on his or her part; and that the stretcher frame may be tilted for placing the invalid in a chair or other support provided for the invalid.

In reduction to practice, I have found that the form of my invention, illustrated in the drawings, and referred to in the above description, as the preferred embodiment, is the most efiicient and practical; yet realizing that the conditions concurrent with the adoption of my device will necessarily vary, I desire to emphasize the fact that various minor changes in the details of construction, proportion and arrangement of parts may be resorted to, when required, without sacrificing any of the advantages of or departing from the spirit of my invention, as defined in the appended claims.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A device for lifting and conveying invalids including a supporting frame comprising a pair of inverted U-shaped standards, a supporting bar for connecting the said standards, the said bar being detachably connected thereto, a stretcher suspended from said supporting bar and slidable throughout the length: thereof, a drum mounted upon one of the standards at one end of the frame, means including a plurality of ropes and pulleys connecting the said drum to the said stretcher for raising and lowering the latter according to the rotation of the drum, and a pair of pivoted pawls carried by one of the said standards adapted to engage teeth formed within the drum ends for controlling the rotation thereof.

2. In combination with a device for conveying and lifting invalids, a stretcher comprising a pair of parallel longitudinally grooved stretcher bars, a removable strip adapted to be arranged within the said groove to fasten the article to be conveyed to the stretcher, a drum dis osed above the said stretcher, independent exible elements connecting the said drum with the respective ends of the stretcher, the rotation of the drum adapted to swing the said stretcher at an angle to its normal horizontal position, and means for locking the said drum in the desired position, as and for the purpose set forth.

3. In combination with a suitable stretcher support, a stretcher movable vertically with respect thereto, a drum carried by the said stretcher, perforate plate members formed integrally with the said drum at the respective ends thereof, independent flexible elements connecting the said drum with the respective ends of the stretcher, and means disposed for engagement with the said perforations of the drum plate for locking the said drum against rotation, as and for the purpose set forth.

4;. In combination with a suitable support, a vertically movable stretcher carried thereby, a drum shaft carried by the said support, ratchet teeth formed upon the respective ends of the drum, the ratchet teeth upon one end of the drum being disposed oppositely to the ratchet teeth upon the other end thereof, pivoted pawls depending from the said support, one for engagement with each of the said ratchets, means carried by the said support for maintaining the said pawls out of engagement with the said ratchet, and means connecting the said drum with the said stretcher for raising and lowering the latter with respect to the support, as and for the purpose set forth.

In testimony whereof I ailix my signature in presence of two witnesses.

PATRICK CASHIJAN. Witnesses:

ARTHUR BENDER, FRANK A. SQUIRES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents, I

Washington, 70. G.

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