US1106430A - Dish-washing machine. - Google Patents

Description

Patented Aug. 11, 1914-.

2 BHEBTS-SHEBT 1.

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M. J. WEAVER. DISH WASHING MACHINE.

APPLICATION FILED MAB. 6, 1814.

1,1 O6,A$@, Patented Aug. 11, 1914.

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MARY JANE WEAVER, OF CINCINNATI, OHIO;

. DISH-WASHING MACHINE.

Specification of Letters Patent.

Patented Au 11, 19M.

Application filed March 5, 1914. Serial no. 622,689.

To all'whom it may concern:

Be it known that I, MARY JANE WEAVER, a citizen of the United States, residing at Cincinnati, in the county. of Hamilton and State of Ohio, have invented certain new and useful Improvements in- Dish-Washing Machines, of which the following is a's'pecification.

This invention relates to certain improvements in dish washers and the like; and-the objects and nature of the invention will. be readily understood by those skille in the art in the light of the following ex 1 ation of the accompanying drawings il ust ating what I. now believe to be the preferre embodiment fromain'ong other formations, ar-

rangements and constructions within the spirit and scope of the invention.

- An object of the invention is to provide certain improvements in combinations of parts and in the construction and arrangement of elements whereby a highly efiicient i ing throughout-thedength of the tank and durable and comparatively simple dish washer will be produced.

/The invention consists in certain novel features in construction .and in combinations and arrangements as more fully and pfarticularly set forth and specified hereina ter.

Referring to the accompanying drawings, Figure 1, is a perspective of the washer complete. Fi 2, is a vertical longitudinal section thereo Fig. 3, is a horizontal section. Figs. 4, and 5, are detail views.

In the particular example illustrated, I employ a tub, tank or receptacle 1, having its vertical or surroundin wall depending a distance below the horizontal plane of the tank bottom toform the depending bottom supporting flange 2. The vertical surroundingwall of the tank is formed with an outward longitudinal bulge or offset 3, extendforming a vertical chamber or recess within the tank extending from the bottom of the tank to the top thereof and at its inner side open into the interior of the tank. V This chamber or recess is permanently closed at the top of the tank by fixed top wall 4, extending to and terminating at the -open top of the tank. The open top of the tank 1s normally closed by the removable cover 5, formed to snugly fit down within the vertical wall of the tank and at the inner edge of the wall 4.. a 1

against the-vertical wall thereof by any suit- Within the vertical side recess or enlargement formed bythe bulge 3,1 arrange the v vertical barrel 6, of a reciprocating pump, This barrel is formed with any suitable footor base 7, restin on the tank bottom. The barrel is remova ly secured in the recess and lemeans, such as U-shaped cllps 8, ar-

-tia lly embracin the barrel and having 1: eir

flanged ends c amped to the tank wall by stove bolts 9, extending. through the wall and said .ends, or by-any other suitable means. .The pump barrel contains any suitable piston 10, provided with a piston rod 11, extending a wardl through and slidable in a sultab e e bearin 12, inthe top wall 4. The exposed hand e or upper end of the piston rod is referably provided with any suitable han e such as 13. A coiled cushioning spring 14, .is'preferably. arranged on' the piston rod to cushion the upward stroke of the piston by being com-- pressed between the piston and under side of wall 4;, as the piston reaches its limit of upward movement.

At its lower end, the pump barrel is provided with inlet opening'15, arranged but a short distance above the tank bottom and this opening is controlled by pump or check valve 16, to permit inflow of liquid from the tank bottom and into the nump barrel when the piston is drawn up but to prevent outflow from the barrel through saidi opening. when the piston is forced down. The lower' end of the pump barrel, above said suction inlet, is provided with a laterally projecting discharge chamber 17, into which the pump barrel discharges through a suitable openin'g controlled by check valve 18, arranged to close said opening under pump suction and to permit dischar e from the barrel and into the chamber un er outward or pump pressure when the piston is'forced downto close the pump valve and to force the liquid from the'pu'mp barrel. This valve 18, is

provided to prevent the' pump drawing liquid'from the discharge chamber 17, when the pump pistonis'mov'edup on its suction stroke.

The discharge'cha'mber is provided with two outlets, one opening horizontally through the side or inner end of the chamher into a horizontal inwardly projecting nipple 20,rigid with the chamber, and detaohably receiving a horizontal pipe 21, diswith the downwardly discharging spray, or

rose head 26, arranged approximately cen-' trally in the upper end of the tank immediately under the tank cover.

The goose neck 25, has an approximately straight free end that slips removably and vertically onto the upper end of the fixed vertical discharge pipe, forming a slip joint therewith, while the opposite end of the goose neck is fixed to the downwardly dis: charging spray head 26. The goose neck carrying its spray head can be easily slipped onto and'from said fixed pipe and can be.

swung horizontally on said fixed pipe as; a center to bring the spray head against the wall of: the tank and thereby leave the center of the tank unobstructed and thereby allow-free access to the interior of the tank after the dish rack, hereinafter described,

has been located in the tank; 'The pipe length 21, carrying 1ts spray head 22, is readily removable from and applidable to the nipple 20, as it slips thereon and therefrom. The head 22, is preferably provided with afoot or base 27, fixed thereto and depending; therefrom and removably resting on the tank bottom to support said "head and its pipe and maintain thehead in the desired horizontal position. If so desired, the pipe 21, can be locked against accidental detachment from the nipple 20, by a readily-accessible removable pin 28, passed dowmthrough the pipe and nipple.

Suitable means are provided to support the dishes 'or other articles to be washed,

' within range of the spray discharged by the said two discharge heads. For instance, I

show an open-work or wire racksor carrier removably arranged within the tank and resting on-the floor thereof andadapted to carry rowsof plates orthe like and expose them. to the action of'the rays. rack is arranged vertically, an about centrally in. the tank below the, upper spray head and rises from the'floor around the lower spray head. The rack is made up of. pairs .-'of spaced vertically disposed-or looped rods or wires forming a-number ofvupwardly converging holders 29, eacharranged to hold a vertical row ofoverlappingplates on edge at the exterior ,of the rack;with-each' plate arranged outwardly :beyoind or spaced from the next plate above, The upper ends of .these holders are together by united crossconnections 80, while the-lower ends of the racks form supporting legs 31; The

lower portions of theracks "arehel'd spread and are secured together by a loop or ring 32, to which the racks are secured.

The center of the rack is open and the lower sprayer head is arranged below this open center with the plates forming an approximately' conical .pile extending upwardly around said open center so that the descending spray. from the upper head will sweep said dishes, particularly the outer surfaces thereof, while the upwardly directed spray from the lower head will also sweep said dishes, particularly the inner surfaces thereof.

The cross portions 30, of the longitudinal or upwardly extending wiresof the tray form handle portions at the upper end of the tray whereby the same with its load can be readily lifted into and from the tank when the upper spray head and its goose neck has been removed. The depending supporting legs 31, formed by the lower ends of the longitudinal holder-forming wires, rest on the bottom of the tank and hold the dishes above the water'filling the lower portion of the tank below the lower spray head. If so desired, a wire or other open work basket 39, can be provided to receive silver ware and this basket is provided at its upper end with supporting hooks 40, by which the basket can be removably attached to suitable portions of the wire rack. so that the basket will hang in the open space within the rack and the articles in the basket will be subject to the cleansing action of the spray from the heads.

' In use, the tank is supplied with hot water to a level above the pump suction inlet but below the perforated top face of the lower spray head, and the pump is then operated to effectively spray the dishes previously arranged in' the rack as before described. After the dishes have drained and dried, they can be removed from the tank separately without disturbing the rack and without removing the upper spray head, or the upper spray head and its goose neck can be removed and the rackwith the dishes therein can be lifted from the tank. I provide a water outlet through the bottom of the tank through which the water can be .drainedfrom the tank whenever desired. In

theexample illustrated, this water outlet or discharge 41, is located in the bottom of the tank at the lower end of. the recess formed by the bulge in. the tank wall and hencey is directly below the permanent top wall of said recess. The outlet is normally tightly closed orplugged by atapered plug'or valve 42, provided with a, valve stem of lift rod 43, extending through and slidable in an opening in said "permanent top wall and provided with an exposed knob or handle above said wall...

The lOWer end of the stem 43, is guided by a bracket 44, fixed in the tank and the valve is yieldingly held in, and is returned after opening to, closing position by 'a coiled or' volute spring -15, compressed between the plug and said bracket. The washer is preferably carried and'held elevated by a detachable portable folding stand 46, provided with casters to render the stand and the washers thereon readily portable or movable along-thefioor or elsewhere.

It is evident that various changes, modifications and variations might be resorted to without departing from the spirit and scope of my-invention and hence I do not wish to limit my invention to the exact disclosures hereof.

\Vhat I claim is 1. A washing machine comprising an open-top tank, a removable,cover for closing" said open top, said ,tank provided approximately throughout its vertical length with. a recess in its surrounding wall formed by an outward bulge in said wall, said recess having a permanent top wall, a pump barrel arranged in said recess, means removably clamping saidbarrel to the bulged portion .of the wall, saidbarrel having a foot engaging the .tank bottom and a suction inlet.

near said bottom, said pump provided with operating means extendin' to the exterior of the t-ankthrough said wa l, discharge pipes within the tank extending from said barrel to the upper and lower portions of the interior of the tank and there provided with spray heads, said pipes having removable sections carrying said spray heads and lo- .cated below and independent of said cover,

and removable means in said tank to receive and carry the dishes, substantially as described.

2. A washing machine comprising a tank having an open top and a cover therefor, a pump secured within the tank and having actuating means operative from the exterior thereof, said pump comprising a barrel having a valved inlet from the bottom of the tank and also having a discharge chamber with a discharge outlet from the barrel thereinto provided with avalve to prevent back flow of water from the chamber into the barrel, a pipe in the lower portion of the tank extending from said chamber and provided withan upwardly discharging spray head, and a pipe extending from said chamber to a point below and independently of said cover and provided with a downwardly discharging spray head.

A washing machine comprising a tank having a removable cover, a removable dish rack in said tank, a pump having a suction inlet from the bottom of the tank and also having afixed discharge chamber into which the pump discharges, means to prevent liquid from flowing back from said chamber into the pump, a discharge pipe from said chamber comprising a removable section in the bottom of the tank having a foot and an upwardly discharging spray head, and another discharge pipe from said chamber arranged within the tank below and independent of said cover and above-said dish MARY JANE WEAVER.

" Witnesses.:

- JOHN J. THEOBALD,

HARRY W. MORNING.

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