US1508828A - Washing machine - Google Patents

Description

J. F. WHQLEY WASHING MACHINE Filed July 14,1922

2 Sheets-Shea-Q l ATTORNEYS.

yJ. F. WHOLEY WASHING MACHINE Filed July 14,

1922 2 sheets-shea: 2

'1N VEN'OR 1 ATTORNEYS,`

` other things,

Patente'd 4Sept.'16,' 1924.

UNITED STATES JoIIN E. WIIOEEY, 0E NEW YORK, N. Y., AssIeNoR rro EAsIRAY CORPORATION, 0E f NEW YORK, N. Y., A CORPORATION 0E DELAWARE.

WASHING MACHINE.

Applicationled July 14, 1922. Serial No. 574,865.

To all whom t may concern:

, v Be it known that I, JOHNF. WHOLEY, a

citizen of the United States, and a resident of the borough of Manhattan, in the city, county, and State of New York, have invented certain new and useful Improvements inv Washing Machines, of. which the following is a specification, reference being made to the accompanying drawings, 'forming a part thereof.

My invention relates more particularly to im rovements in dish-washing machines in whlch Crockery, glassware and the like are thoroughly and rapidly cleansed in large quantities, such machines being used particularly in hotels and restaurants.

The objects of my invention are, among to provide a washing machine of this type whereby the cleansing of the dishes may be readily and rapidly effected, followed by a complete'rinsing in a separate compartment without any splashing or overiiow ,of either the separate washing or rinsing waters from their .respective compartments which should be maintained at relatively different temperatures for the most etlicient operation.

v My invention further .provides means for the automatic removal of the rfloating scum or grease on the surface of the water in the separate compartments without materially l weakening the water' in the washing compartment which usually contains a fat or grease solvent, soap solution or water `softenv ing ingredient to facilitate the initial dishwashin ,it being very advantageous to 4maintam the strength of the soap solution substantially uniform in the washing compartment and at a temperature much lower than in the rinsin complartment. A further object is to provi e in t e separate compartments means whereby cross currents of the surface waters may be automatically set up by the spray manifolds of each compartment to carry the iloating scum or grease toward the common overflow trough provided for removing such floatingmatter from the several compartments, preferably arranged along one side of the machine; there is also a more or less constant overiiow in the rinsing compartment because vof the final hot water spray with which my machine is equipped which overiow provides a continuous stream of water in the overflow trough flowing by the washing compartment toward the sewer.

lneathA the tracks With these and other objects in view, the

invention comprises the construction and arrangement of parts herein shown and hereafter to b described and then set forth in the appended claims.

The accompanying improvements in a preferred two v'compartment machine, serving to explain the invention, which is not to be restricted, however, to amachine having any particular number of compartments, -since the invention is manifestly' equally applicable to a machine provided with any numberA of adjoining 'tanks or compartments for successive'washling and rinsing waters for the dlshes.

f `In the drawings, Figure 1 is a vertical longitudinal section taken on the line 11-1 of Figure 2 looking towardjhe right;

` Figure 2 is a cross-sectional elevation with certain parts omitted; and

Figure 3 is a sectionalplan viewtaken on the line 3-3 of Figure 2.

Similar numerals refer to similar parts throughout the several figures.

Referring to. the embodiment shown in Figure 1 the casing 4 is supported on the standards 5the base or lower portion ofthe casing 4 being divided by the partition 6 to form the washing compartment or tank 7 and the rinsing compartment or tank 8 which are entirely separate from each other.

Above the tanks 7 "and 8 and extending longitudinally through the casing 4 are two tracks 9 and 10 having spaced-apart rollers 11 upon which the dish-racks 12 are advanced through the machine from left to right as indicated by the arrows in Figure 1. Be-

across the machine over the tanks 7 and 8 are arranged the removable strainer pans 13 to catch refuse material from the dishesv 14 placed in the racks 12 when such material is removed bythe spray manifolds 15 and 16 for each tank. The manifolds 15 are' located above the dishes to spray the water down on the dishes while the lower manifolds 16 are below the tracks 9 and 10 to force the water sprays upwardly to vthev dishes 14, all as shown in Figure 1. Water is drawn from the tanks 7 and 8"by the two rotary pumps 17 which force the water under pressure to the manifolds 15 and 16 through 'the connecting pipes 18 and 19; the pumps .17 are mounted in tandem as shown in Fig- Aure ,1 vand are operated by the line shaft 20 drawings vshow these 9 and 10 and extending p ldriven by the electric motor 21. Such spray manifolds 15 and 16 deluge the dishes 14 as they pass over the respective tanks 7 and 8, the pumps 17 drawing the water from each tank and delivering same under pressure to the two sets of manifolds 15 and 16 as shown, with the water falling back to the respective tank or compartment throughthe strainer pans 13. 'll`hertank 7 has the vvalved drain pipe 22 and the tank 8 has asimilar valved drain pipe 23, both emptying into the sewer pipe 24. Since these are common forms of construction in dish-washing machines and do not in themselves constitute an part ot my invention, they need not be further` describedl in detail.

Extending along one side of both tanks 7 and 8 and through the partition 6 is thev overflow trough 25 consisting of the bottom plate 26 inclined from rightto left in Figure 1 and the verticalside-plate 27 over the top edge 28 of which the surplus water from the two tanks or compartments 7 and 8 flows in the common trough 25 which leads to the upright l drain pipe 29 located at the entrance end of the casing 4,`and is connected with the sewer pipe 24. .'llhe inclination of the plate 26 allows all water in the trough 25 to flow freely toward the drain pipe 29, the trough 25 being secured to the front sideplate 30 of the casing 4` (Fig. 2) by any suit-l able means; such overflow of surface water from the two tanks 7 and 8 carries all floating scum or grease over the edge 28 and into the trough 25, the final hot water sprays 3l in the rinsing tank 8 supplying sutlicient additional water to the tank 8 to maintaina more or less constant overflow from this tank into the trough 25 which thereby contains a stream of water constantly owing by the wash tank 7 which usually has the greater amount of Hoating scum and other impurities.4 `'llhis arrangement eifectually prevents the trough 25 from being clogged with scum or grease from the tank 7 because of lack of running water to carry same to the drain pipe'29. f

A further novel improvement in my machine is shown more particularly in Figure 2 by forming the compartments or tanks 7 and 8 with the sloping or inclined bottoms 32 opposite to the trough 25 which bottoms 32 extend into the tanks well within Jthe zones of the sprays from the manifolds 15 and 16 with the result `that the falling water passing through the` strainer pans 13 on the right or back side of the. machine falls int the shallow portion Yof the tanks 7 and formed above the inclined bottoms` 32 err-r tendingalon theentire lengthof the tanks, and, when t e water inthe compartments reaches the level of the edge 28 of theoveriiow trough 25, automatically sets u cross currents vof the surface water in eac tank from back to front to carry forwardly to the neoaeae trough 25 the floating scum or grease which would otherwise be artially shut 0E from such overow trough y the curtain of water constantly falling from the spray manifolds 15 and 16 when the machine is in operation.

.lBy my improved construction in providing.

in each tank not only Vin each side of the spray manifolds but alsobeneath the. same, when the water in the compartments reaches the level of the edge 28 of the overflow trough 25. v

Means are also provided to supply hot and cold water as well as steam'to the compartments or tanks either for ypurging the tank or for regulating the temperature thereof.

Such means may be widely varied; inthe embodiment shown the feed-pipe 33 emptying into the washing compartment 7 has a three-way connection with hot water, cold water and steam supply, while the feed-pipe 34 for the rinsing compartment 8 is suitably connected by valved pipes with separate hot water and steam connections 'to initially heat the final spray rinse water which is thereafter maintained at a temperature 'in the neighborhood of 200 degrees Fahrenheit by the spra s 31 so as to enable the dishes to dry quic ly after passing from the machine. rllhe cold water connection for the washing compartment 7 is advantageous to enable the attendant to reduce the temperature of the wash water to about 160 degrees Fahrenheit as most soap solutions and washin compounds disintegrate and lose their eiiectiveness when placed in water heated to a temperature over 160 lde ees Fahrenheit, and the water in the wash tank 7 is likely to rise above this critical temperature because of 'the tracks 9 and 10 after being introduced at the left'end of the machine (Fig. 1).

'llhe successivev racks are allowed to stand for short intervals between the spray manifolds 15 and 16 in each compartment, and suchv dishes are finally subjected to the hot water spray from the sprays 31. While this cleansing and rinsing operation is takin place the oating scum and grease .in eac compartment or tank 7 and 8 is carried over the top 'edge 28 of the trough 25 the additional water'from the sprays 31 being suiiicient to cause a constant overow in tank 8 while the attendant from time to time adds either hot or cold water to the tank 7 through ving tank 7 sufficient to carry the feed-pipe 33 to supply the required surplus to cause a slight over ilow in the wash- `the floating impurities over the top edge 28, the force of the falling sprays from the manifolds 15 and 16 in each tank in conjunction with the inclined bottoms 32 creating cross currents of surface water moving toward the trough 25 through the curtain ofwater from the manifolds. The constant stream of overflow Water starting from the rinsing compartment 8 efl'ectually clears the trough 25 throughout its length, and the refuse scum andl grease are carriedoff through the drainpipe 29 to the sewer 24.

"While the construction herein shown and described embodies the invention in its preferred form, itv will be understood that changes and variations may be made in the various parts Without departing from the principles and scope of the invention.

claim as my invention:

vl. In a washing machine, a casing having a plurality of separated compartments at `its base', and an overflow drainage means extending along the same side' of the compartments and common to said compartments with its bottom inclined relatively to the overow edge of said drainage means.

A2. In a washing machine, a casing having a plurality of separated compartmentsv at its base, and an elongated overiiow trough extending along thev same side of the compartments and vcommon to said compartments with its bottom inclined relatively to the overflow'edge of said trough.

3. In a washing machine, a washing compartment, a rinsing compartment, separate from each other, and an overliow drainage means common to both compartments and inclined from the rinsing compartmentto the Washing compartment. n

4. In a washing machine, a Washing compartment, a rinsing compartment, Separate from each other, and an elongatedoverflow trough extending along one side of both compartments longitudinally of the machine with lits bottom inclined from the rinsing compartment to thev washing compartment.

5. In a washing` machine, La washing compartment, a .rinsing compartment, separate from each other, and an overiiow drainage means extendin along one side of the compartments with its bottom inclined relatively to the overflow edge of said drainage means.

6. In a Washing machine, a washing-compartment, a rinsing compartment, separate from each other, an elongated overflow trough extending along the same side of both compartments, water sprays above each compartment, and extending. from the side of the compartments opposite the trough a downwardly inclined plate projecting in- .wardly beneath said water sprays.

7. In a washing machine, a washing compartment, a' rinsing compartment, separate from each other, an elongated overflow trough with an inclined bottom extending longitudinally of the machine along the same Side of both compartments, separate Water v.sprays above each compartment, and extendlng from the same side of the compartments opposite the trough a downwardlyinclinedl bottom plate projecting inwardly beneath said water sprays. 4

. JCI-IN F. WHOLEY.v

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