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Publication numberUS524409 A
Publication typeGrant
Publication dateAug 14, 1894
Filing dateMar 16, 1894
Publication numberUS 524409 A, US 524409A, US-A-524409, US524409 A, US524409A
InventorsArthur A. Wright
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 524409 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

`(No Model.) 2 sheets-#sheet 1-.



No. 524,409. Patented' Aug. 14, 1894.


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(No Model.) 4 LA. WRIGHT.

4 4 DISH CLEANER. No. 524.409. Patented Aug; 14, 1894.v




, SPECIFICATION forming part of Letters Patent No. 524,409, dated August 14, 1894.

Application {iled March 16, 1894.

Serial No. 503,936. (llo model.)

To all whom it may concern:

Be it known that I, ARTHUR A. WRIGHT, a citizen of. the United States, residing at Bennington, in the county of Bennington and State of Vermont, have invented certain new and useful Improvementslin Dish-Washing Machines, of which the following is a specification.

My invention relates to machines for washing dishes, die.,l and consists first, in a novel means for insuring a positive circulation of the water within the tubs; and second, in a novel arrangement of devices for elevating and lowering the dish-holding baskets.

In the drawings,-Figure 1 is a front face view of my machine; Fig. 2, a top plan View with the baskets and one of the aprons removed; Fig. 3, a vertical sectional View through one of the tanks; and Fig. 4, a sectional perspective view illustrating a detail of construction of the water-forcing devices. A and B indicate two upright tubs, tanks, or vessels, in which the dishes are suspended by `means of baskets C, C', C2, as usual, said tanks being supported upon or by a suitable framework.

Between the two tanks is an uprightcylinder D in'which is mounted a piston (shown in dotted lines in Fig. l), whose rod or stem E projects out through the top or upper end of the cylinder, where it is provided with av frame F, shown in Figs. l and 2, the said frame serving to support the baskets C in which the dishes are placed.

A pipe G communicates with the lower end of the cylinder, and by means of a valve G in said pipe, the fiow of steam to and from the cylinder may be controlled. This valve will preferably be an ordinary three-way valve, but if desired, a separate pipe G2, and valve may be employed, as indicated by dotted lines in Fig. l.

When steam, or any other suitable fluid, is admitted below the piston, the latter, with the attached frame F, will rise and lift the baskets containing the dishes, up out of the tanks A, B, and while in this elevated position, the frame may be swung around hori zontally to bring the .basket C that waslj ust raised from tank A, overthe top of tank B, so that when the device is lowered, this basket C will be carried into the rinsing tank B.

The basket C that was elevated from tank B was, by the same horizontal movement,

brought over the top of the table H so that the dishes may drain.

Basket C2, which was upon the table while the baskets C vC were in the tanks A B, has had the washed dishes removed, and it, or another basket, has been supplied with a new lot of soiled dishes. When, therefore, the baskets were raised and swung around, as before stated, this basket C2 was moved from over the table to the tank A.V In other words, each basket is brought successively over the table H, and tanks A and B. The frame F may turn with the rod or stem E or independently thereof, as may be preferred. The steam used for elevating the frame F is preferably derived from the same pipe which supplies the heating coils hereinafter referred to. This table H to which I have referred, extends across the front of the machine from one side 'to the other, and will be provided, as are the tanks, with suitable pipes V for carrying o the dirty water.

As the two tanks A and B are similar in all respects, only one of them will be described in detail.

In the bottom of the tank there is a steam coil Iby means of which the water in the tank is kept at the proper temperature. Extending upwardly through the center of the tank bottom is a shaft J having beneath the tank a band or sprocket wheel K, the band wheels of the two shafts being connected by a chain or belt L. One of these shafts .I (in the present instance that of tank B) receives motion from a belt M which receives its motion from a band wheel N, which is turned by hand or power.

At the upper end of the shaft J are the inclined blades or wings O which are attached at their outer ends to the circular band P, see Fig. 3. Band P is connected at its lower edge to an annular plate Q, which in turn is connected to a second band R, so that the blades or wings O, the bands P R, and the intervening plate Q constitute one structure and turn or rotate together with shaft J.

Between the bands Pand R, but firmly united thereto, are the blades S which incline atan angle of from forty-tive degrees to sixty degrees, but in a direction the reverse of the cut or slit the plate at different points, and

turn the tongues thus formed, down below the plate, as in Fig. 4.

Suspended within each of the tanks is an apron U which, at its lower end, is of the same diameter as the Vband or ring P, while its upper end is iiared and made of a size slightly less than the diameter of the tank, as shown in Fig. 3. This apron divides the tank into two chambers, a Vcentral chamber in which the dishes are placed and down which the water is drawn, and an outer chamber up which the water is forced.

It will be noticed upon reference to Fig.'3 thatthe upper end' of the apron terminates below the' upper end of the tank so that the water may pass over the top of the apron without splashing over Athe tank. In Fig. 2 the apron is omitted from tank A.

When-the dishes are lowered into the apron, andthe shaft J rotated rapidly, the blades O will draw err-force the` water downward through the center, while the blades S will, at j operation of the blades O. The wings or lips T act as scoops and give tothe water discharged downward by blades O, an upward movement, which movement is continued by the blades-S.

From the foregoing it will be seensthat I secure a positive circulation of the water Y through the dish-baskets and the tanks in p with a tub and a table 5, of a cylinder provided with a piston and piston rod, and xed relatively to the tub and table; 'a basket-supporting frame carried by the piston rod and adapted to be swung horizontally; and meansv for controlling the flow of a fluid to and from the cylinder.

2. In combination with two tanks, a cylin der provided with a piston and piston rod; a table below the top of the tanks; means for controlling the ow of a fluid to and from the cylinder; and a basketsupporting-frame carried by the rod, said frame being capable of horizontal movement, substantially as shown and described.

3. In combination with two tanks and a table; a fluid-pressure-mechanismv arranged centrally with reference to the tanks and table; and a basket-supporting-frame capable of horizontal movement, and adapted to be raised and lowered by the fluid-pressure mechanism.

4. In combination with the tank and the apron therein; the shaft J provided with the inclined blades O; bandsP and R connected by an open plate Q; andthe blades S between the bands P and R, substantially as shown and described.

'5. In combination with the tank and the apron therein; the shaft J provided with the blades O; bands P and R; the open plate Q connected with said bands and provided with rwings or lips T on the under side; and the blades S between the bands, substantially as shown and described.

In witness whereof I hereunto set my hand in the presence of two witnesses.

ARTHUR A. WRIGHT. Witnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2639138 *Oct 28, 1947May 19, 1953Dow Doris BHeat-treating apparatus
US5355901 *Oct 27, 1992Oct 18, 1994Autoclave Engineers, Ltd.Apparatus for supercritical cleaning
Cooperative ClassificationB65G49/049