US1385203A

US1385203A - Dish-washing machine

Info

Publication number: US1385203A
Application number: US326244A
Authority: US
Inventors: James W Crooks
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-09-25
Filing date: 1919-09-25
Publication date: 1921-07-19
Anticipated expiration: 1938-07-19

Description

J. W. CROOKS. DISH WASHING MACHINE.

APPLICATION FILED SEPT- 25. 1919- 1,385,203. Patented July 19, 1921.

2 SHEETS-SHEET mi il INVENTOR I JZZJYLGS Z. 6 700706. n9 BY ATTORNEY J. W. CROOKS.

DISH WASHING MACHINE.

' APPLICATION FILED SEPT. 25, 1919. x 1,385,203, Patented July 19, 1921.

2 SHEETS-SHEET 2- ATTORNEY UNITED STATE-Sf J'AIES W. CROOKS, OF PELHAM. YORK.

msn-wasme monnm.

Specification of Letters Patent.

Patented July 19, 1921.

Application filed September 25, 1919. Serial No. 320,244.

To all whom it may concern Pelham, in the count of Westchester and State of New. York, ave invented certain new 'and useful Improvements in Dish- Washing Machines, of which the following is a specification.

This application is a companion to application for United States Letters Patent filed September 18, 1919, Serial No. 324,282. The present invention relates to the water elevator and distributer of a dishwashing machine particularly adapted for domestic The improvements are illustrated in the accompanying drawings, wherein:

Figure 1, 1s a plan view of the machine, the cover. being partly broken away. Fig. 2, is a side elevationof'the machine parts being broken away and-in section. 1g. 3,

is a cross section of the improved elevator and distributor in the plane indicated by the line 3-3 in Fig. 4. ig. 4 is a top view of the elevator and distributer, partly in section in the plane indicated by the line 4-4 in Fig. 3; Fig. 5, is a detail section of a one of the outlets in a plane indicated by the line 5-5 in rFi 3. Fig. 6, is a detall section of the distri uter in the plane indicated by the line 6.-6 in Fig. 4.

Like the machine of the companion ap,-"

plication, the tank A is water tight and has a hinged cover a, which has a water tight fit upon the top of the tank and which can be swun up out of the way when necessa The mac ine is of sufiicient height to enab e it to be used as a kitchen'table when not in "use as adishwashing machine, and to this end is preferably constructed of galvanized iron or dairy tin with a wooden top, both the tank and the cover having a white, vitri fied, enameled outer surface which is easily kept clean.

Within the tank A, are removable skeleton wire trays B, having pockets b, of varying sizes for the dishes and special ockets c, for the silverware (as shown inig. 1). The bottom e, of the tank is inclined from all directions. toward. a central well 0, which in use is filled with water. The well C, has at one side an outlet commu aicating with a dischar pipe 10, and controlled by a valve M. T is valve M, is hand-operated an s e e shown controlled by the vertical L hand rod m, on the outside of thetank within Be it known that I, James W. CROOKS, of

e other end of the link 'o,is con-' close the valve. Inv all these respects, the

present machine is similar to that of the aforesaid application.

The present improvement resides in a new water elevator and distributer which is shown in detail in Figs. 3 and 4. It comprises a stationary outer shell or casing D, which is frusto-conical in shape, increasing in diameter frombottom to top, being open at its to Its lower end is'within the well C, and as a series of inlet passages E, at its bottom which do not extend to the level of the top of the well, bein therefore, submerged when water is in t e machine.

The water elevator comprises a rotary propeller having propeller blades F, of which two are shown, that number being adequate, near the lowerend of the casing D, and just' above the inlets EL These blades are of the proper contour to elevate or force the water upwardly within the casing D, and are just above the level of the top of the inlet passages E, and below the top of the well so that they pick up the and elevate T e propeller water as it flows into the casinit within the casing D.

blades are mounted on the lower end of a.

tubeG, which at its upper end is attached to the upper end of a drive shaft I. The shaft I, is journaled at .its u per end in a bearing on a rigid cross bar (Fig. 2), se-

cured to the sides ofthe tank A, beneath' the cover a. The lower end of the shaft extends throughthe bottom of the well and is directly connected with the shaft of an electric motor K, which is of a type to be operated b current supplied from any ordinary lig t fixture. The motor K, is mount-' from the shaft I, so that the tube and shaft i turn free. of the standpipe. This standpipey extends above the top of the well C, and above any needed water.level in the machine.

At the upper end of the rotary tube-G, is the rotary distributor O. The important features of the,distributer are a deflector and arching deflector is such that the water elevated by the propeller is diverted outwardly and downwardly into the trough 12. The trough is annular and encircles the upp'er end of the casing D. The bottom 7. of

the trough is below the upper edge of the casing. It is connected to the outer wall 9 (Fig. 6) of the trough which depends from a top plate It. At the inner edge of the bottom 7", an annular ring 2', rises abovethe upper edge of the casing D, and constitutes the inner wall of the trough. This inner wall z', is close to the upper end of the easing so that leakage of water at this place is negligible. The outer wall of the trough has openings for the discharge of the water. Two such outlets 13, are shown at diametrically opposite points. The outlets are located sufliciently high to permit the discharge of the Water in the upper part of the tank so that it will strike the upper edges of the upstandinggdishes in the trays and flow down them. ack of each outlet,

as shown in Fig. 5, is an inclined partition j, extending from the inner wall 2', of the trough entirely across it and outwardly beyondwthe outer wall g. This partition inclines rearwardly with reference to the direction of rotation of the distributor, as shown by the arrow 14, in Fig. 4. Each. tangential outlet 13 also has anupper plate or roof k, the floor of the trough constituting the floor of the outlet 13, and both the floor and the roof of the outlet extending beyond the outer wall 9, as shown in Figs. 3 and 5, thus constituting with the outwardly extending partition j, a projecting nozzle. Each outlet roof is, extends outwardly from the top of the inner wall, so that each outlet is the full height of the trough.

To use the machine, the dishes. etc., are placed in the trays, the well is filled with washing fluid (water with soap or other detergent), the cover is closed, and the motor is started by turning on the electric current. The water. is elevated by the propellers and discharged by the deflector into the apertured distributing trough. The upwardly enlarging stationary casing avoids back pressure on the propellers and choking. The water is whirled by the rotating trough and is discharged centrifugally and tangentially through the outlets into the upper part of the tank. The water is vigorously showered upon the upper edges of the "dishes throughout all parts of the tank, and flows down the dishes to the floor of the tank, and thence back to the well. The water is efficiently and rapidly circulated and three minutes suflices to clean the dishes thoroughly. The foul 'water is discharged through the valved outlet. Hot rinsing water is then introduced and a circulation thereof for two minutes suflices to rinse the dishes fliciently.

I claim- 1. A dishwashing machine having, in combination. a tank having a depressed central well astationary frusto-eonical casing in the tank increasing in diameter from bottom to top, -said casing having a series of water inlets in the bottom thereof communicating with the bottom of said circling the upper end of the casing and having a partition inclined rearwardly with respect to the direction of rotation of the distributer extending across the trough back of each outlet and outwardly beyond the outer wall of said trough and a roof across the trough above each outlet likewise extending beyond the outer wall of said trough, and the bottom of the trough at each outlet also extending beyond the outer wall of the trough.

2. A dishwashing machine having, in combination, a tank; a frusto-eonical casing within said tank increasing in diameter from bottom to top, said casing having water inlets communicating with the bottom of said tank; and a rotary water elevator and distributer, the elevator consisting of elevating propeller blades located near the bottom of said casing above the inlets, and the distributer comprising an outer trough encircling the top of said casing, an inner deflector which directs the elevated water to the trough, outlets in the outer wall of the trough, and a partition back of each outlet extending across the trough.

3. A dishwashing machine having, in combination, a dishholding tank; an upwardly expanding stationary casing within said tank communicating at its lower end with said tank and open at its top; and a rotary water elevator and distributer, the

ing, and a distributor an outer trough at the top of casing and receiving water therefrom, and having an outlet in its outer wall.

"LA all; mlchine having,

10 distributor, the elevator consistmg of an elevating propeller located near the bottom of saidcaslng which forces the water upwardly through the casing, and the distributer comprising a trough at the top of said of greater diameter than said casing an having a water discharging out- In witnes whereof, I have hereunto signed my name.

JAMES W.- CROOKS.