US2014084A - Dishwashing machine - Google Patents

Description

Sept. 10;.1935. e. E. KINGSLEY El AL ,0

DISHWASHING MACHINE 'Filed Dec. 8, 1954 I 2 Sheets-Sheet 2 INVENTORS arry Patented Sept. 10, 1935 PATENT OFFICE 2,014,084 nIsnwAsnmG MACHINE George E. Kingsley and Harry J. Loar, Newark,

N. J assignors,

by direct and mesne assignments, of two-thirds to said Kingsley and onethird to Eric D. Bovet, New York, N. Y.

Application December 8, 1934, Serial No. 156,618

7 2 Claims. This invention relates, generally, to dishwashing machines, and the invention has reference, more particularly, to ,a novel construction of dishwashing machine.

Dishwashing machines as heretofore constructed are generally more or less complicated in structure and require an undue amount of attention in use, in maintenance and in retaining the same in a clean and sanitary condition. Also, many of these machines fail to thoroughly clean the dishes or require an excessive amount of time and. hot water to do so.

The principal object of the present invention is to provide a novel, simply constructed, dishwashing machine that is easy to use, is reliable and eflicient in operation and which is easily retained in a sanitary and clean condition.

Another object of the present invention lies in the provision of a novel dishwashing machine of the above character that employs a single impeller for both washing and drying the dishes,

:as well as for discharging used water from the machine.

Still another object of the present invention is to provide a novel dishwashing machine of the above character wherein the cleansing water is given a swirling motion, and the dishes to be cleaned are so disposed that the motion of the water is substantially tangential to the surfaces of the dishes, thereby'effecting a rapid cleansing action.

Other objects of this invention, not at this time more particularly enumerated, will be clearly understood from the following detailed description of the same.

The invention is clearly illustrated in the accompanying drawings, in which:

Fig. 1 is a part vertical sectional view of the novel dishwashing machine .of this invention. 1

Fig. 2 is a part sectional view taken substantially along line 2-2 of Figs. 1 and 4 looking in the direction of the arrows. v

Fig. 3 is a sectional view of the container part of the machine taken along line 3-3 of Fig. 2,

looking in the direction of the arrows, and

Fig. 4 is an enlarged fragmentary sectional view taken along line {-4 of Fig. 2, looking inthe direction of the arrows.

Similar characters of reference are employed in said views, to indicate corresponding parts.

. Referring now to the said drawings, the reference numeral t designates the novel dishwashing machine of this invention as a whole, the said machine consisting essentially of a container 2 and a supporting stand or base I therefor. Stand 3 .washer about. The stand or base 3 is of substantially elliptical shape in plan and has a projecting shelf 6 at one end thereof for supporting a driving motor 1 which is illustrated as an electric motor. Motor 1 is preferably enclosed by a casing 8 that may be attached as by rivets to the container 2.

The container 2 is of substantially cylindrical 10 shape and its lower half is formed, adjacent motor I, with a projecting portion III that is of substantially crescent shape as viewed in plan, thereby causing the lower part of thecontainer 2 to be of approximately elliptical shape in plan. A vertical partition I I is positioned inwardly from the outer end wall of projecting portion III and this partition I I merges at its top into the side wall of container 2. A space or passage I2 is thus provided between partition II and the outer wall of projecting portion Ill, within which space or passage an impeller I3 is positioned. The hub of ima shaft I4 that extends I5 and is connectedfas by tending between the outer wall of projecting portion II] and partition II. Additional transverse partitions 2I and 22 extend between the ends of arcuate partition 20 and the top 23 of projecting portion III for aiding, respectively, in conducting water to and from the lower half of impeller I3. I

A waste water outlet 24 is provided at the discharge side of impeller I3, which outlet is 'connected througha valve 25 to a hose 26. I A slide gate 21 is slidably mounted in guides 28 provided in the projecting portion I0 and has an 49 operating handle 29 positioned exteriorly of this projecting portion. By pulling upwardly. upon the handle 29, the gate 21 is raised to its full line position shown in Fig. 4, thereby permitting the impeller I3 in use-to discharge water at high container 2, the slide gate positioned in ad ance of the inlet opening 32 of passage I2 for straining the water before it reaches the impeller l3.

Container 2 is open at its 'top and is arranged to be covered by a removable lid 33 having a lifting handle 34. The bottom 35 of container 2 is preferably raised somewhat at its center to aid the circulatory flow of water in cleansing the dishes and to cause water to drain towards the impeller [3. An annular wire frame 31 is adapted to be received within. container 2 for resting upon the bottom 35. Frame 31 is constructedto provide a plurality of annular receiving'recesses 38, 39 and 40 for receiving and supporting plates, saucers and the like so that they stand on edge and are arranged edge to edge in a ring formation within the container 2 and near the side walls thereof. The frame 31 is shown as having cross wires 4| fordividing the annular receiving recesses 38 to 40 into individual compartments. A central tray 42 is illustrated as having hooked end portions 43 for engaging and resting upon the wire frame 31. The tray'42 is provided with a screen 44 for support ing knives, forks, spoons and the like. Additional open grid trays 45 and 46 have their'ends removably mounted on the frame 31 and are adapted to support cups and similar articles. If desired, trays 42, 45 and 46 may be made as a unitary structure, thereby facilitating the insertion and removal of the same with respect to container 2. Additional articles may be placed under trays 42, 45 and 46, if desired.

. In use, the dishes to be washed are inserted into the container 2, the respective types of dishes being arranged as just described. Hot or tepid water is then run into the container 2 and some soap or the like should be added. This water may be supplied either through the open top of container 2 or through the hose 26. Preferably, the water level within container 2 will stand as high as the top of wire frame 37 although a much less quantity of water may be used, if desired, especially when but a few dishes are being washed. The cover 33 is 21 raisedand the motor I started, thereby causing impeller I3 to rotatein a counter-clockwise direction as viewed in Fig. 4.

The rapidly rotating impeller l3 serves to draw water from container 2, through screen 3| and inlet opening 32 and past the lower half of this impeller within passage I 2. In passing the impeller l3, the .blades l8 thereof impress a high velocity head upon the water, thereby causing this water to flow out through discharge outlet 30 at high speed and back into the container 2. It will be noted that the water reenters the container 2 adjacent its side wall andflows at high speed in a direction substantially parallel to such side wall, i. e. in an annular direction, thereby setting up a swirling motion of the water within the container 2, resulting in the rapid cleansing of the dishes. The direction of flow of the water is parallel-to the surfaces of the plates and saucers held by wire frame 31 so that dirt and foreign matter are quickly removed from these surfaces. The swirling water enters the 'downwardly open cups on trays 45 and 46, the ebyrapidly cleaning these cups, while wa e flows in all directions over the knives an forks on screen 44, thus cleaning thesaine.

After the dishes are' thus cleaned, the hose 26 is connected with a drain, the valve 25 opened then placed onand the slide gate 21 lowered. Continued motion of impeller l3 now causes the water to be driven up through outlet 24, valve 25 and hose 26 into the drain, thereby quickly emptying the container 2.- After the container 2 is empty, should 4 5 it be desired to rinse the dishes, the gate 21 is again raised and fresh water inserted into the container and circulated for a time therein by the impeller I 3. After rinsing the dishes, the water is again removed by lowering gate 2'! and there- 10 after the cover 33 is lifted off of container 2 permitting air to freely enter'this container. The

gate 21 is now raised and the impeller 23 serves to rapidly circulate drying air over the dishes so that they are quickly dried, after which they may 16 be removed from the washer.

It will be noted that when the wire frame 31 is taken out of the container 2, the interior thereof is unobstructed, thereby enabling easy cleaning of the same. Owing to the simple and 20 rugged construction of the dishwasher, and to the fact that but a single, directly connected, impeller is used, the same requires but little attention in operation and may be used for a long period without any attention'whatever. It 'is to 25 be understood that the container 2 instead of being mounted on the stand 3 may be set into a specially prepared sink, if desired, or this container may be mounted on any suitable supporting surface. A

-As many changes could be made in the above construction and many apparently widely different embodiments of this invention could be made without departing from the scope thereof, as defined by the following claims, it is in- 35 tended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

We claim:

1. In a dishwashing machine, a vertical-cylindrical container having a projecting portion at one side thereof, said projecting portion providing an arcuate passage communicating at its ends withsaid container, a rotatable impeller within 45 said passage, means for rotating said impeller to cause a swirling circulation of water through said container and said passage, a waste water outlet .provided in said container adjacent said im peller at the discharge side thereof, and a slide the inlet of said passage, a waste water outlet provided in said container adjacent said impeller at the discharge side thereof, and a slide gate for shutting off said passage at the discharge side of said impeller, whereby-water may be discharged from said container ou't"'through said waste water outlet, the opening of said slide gate after the emptying of said container, en-

abling said impeller to circulate d ying air throughout said container.

GEORGE E. KINGSLEY. HARRY J. LOAR.

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