US1960816A

US1960816A - Dishwashing machine

Info

Publication number: US1960816A
Application number: US540102A
Authority: US
Inventors: Michael J Kehoe
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-05-26
Filing date: 1931-05-26
Publication date: 1934-05-29
Anticipated expiration: 1951-05-29

Description

M. J. KEHOE DISHWASHING MACHINE May 29, 1934.

Original Filed May 26, 1931 4 Sheets-Sheet l ,BY MMX l ATTORNEYS May 29, 1934'.

M. J. KEHOE DISHWASHING MACHINE Original Filed Mayk 26 1951 4 Sheets-Sheet 2 I INVENTOR ATTORNEYS I May 29, 1934.

Original Filed May 26, 1931 M. J. KEHOE DISHWASHING MACHINE 4 Sheets-Sheet 5 y mm/ M .7W AW ATTO RN EYS May29,1934. M,.J,KEHOE 1,960,816-

DIsHwAsHING MACHINE Original Filed May 26,- 1951 4'She`ets-Sheet 4 T37 K 47 4| frs 5 6 40 INVENTOR l ATTonNEYa Patented May 2 9, l1934 1,960,816 DIsHwAsHING MACHINE Michael J. Kehoe, Springfield, Ohio Application May 2s, v1931, serial No.

Renewed November 6, 1933 6 Claims. (Cl. 141-9) This invention vrelates to dish washing machines, it more particularly relating to that type of machine inwhich there is employed ,a stationary tube and a rotary water impelling device.

One object of the invention is to provide improved means for projecting or dashing the Water upon the dirty dishes or other utensils; a more specific object inthis connection being to provide an improvedarrangement of movable impellers and stationary bailles for directing the water in the proper direction. y

A further object of the invention is to provide an improved arrangement for supplying the water to the tub and draining the water therefrom.l

Another object offthe inventionis to provide improved devices forY supporting the dishes or v other utensils in the tubv and for straining the Water before recirculation over the dishes; amore specicobject in this connection being to provide a pan so arranged that it will support said strainer and also act to direct the water into effective range of the impeller blades.

A further object of the invention is to provide a unitary structure in the nature of awashing, machine and kitchentable so arranged that the table will form a main cover for the washing machine, act as a support forsome of the parts and also answer for the purpose of an ordinary kitchen table. l

Other objects of the invention will appear from I. the accompanying description, statement of! advantages and claims.

In the accompanying drawings:

Fig. 1 is a view partly in side elevationand 35 partly in vertical section showing the improvements. l

Fig. 2 is a top plan view on a reduced scale;

Fig. 3 is a section on the line 3 3 of Fig. 1.

Fig. 4vis a section on the line 4 4 of Fig. 1.

Fig. 5 is an enlarged longitudinal section of that portion of the water supply and drainage hose which connects with the water faucet, the section being taken on the line 5 5 of Fig. 4.

Fig. 6 is a vertical section of a portion of the/ ,45 tub, the section being on the line 6 6 of Fig..4,

with' the dish rack omitted. l, Fig. 7 is a section on the line '7 7 of Fig/ 6, with the pan omitted.

Fig. 8 is a section on the line 8 8 of Fig. 6`

with the pan omitted; this ilgure,;as well as Figs. 6 and 7, showing the direction ltaken by. the water under the action of the various parts.

In thevdrawings, 1 represents av tub or bowl, preferably formed of metal, which is stationarily mounted upon a suitable support consisting of a standard 2 having its upper end formed with anl integral disk-3 and its lower end fastened to a hollow base 4 which is supported from the floor by legs 5 and has a lower cover 6 to form a housing. The disk 3 has an annular depressed por- 50 tion at its outer edge to receive the bottom proper of the tub, which is formed with a central opening with the walls of the opening abutting the shou`.der formed by the depressedl portion of the disk, and secured to the upper surface of the disk is an auxiliary bottom ,member or cover 3 which overlaps and is clamped tightly to the bottom of the bowl to form a water-tight joint.

Journalled in suitable lbearings at the upper and lower ends of the standard 2 is a spindle 7, o the lower reduced end of which extends into the housing and has fast thereto a' large pulley 3 which derives motion `from the shaft 9 of an electric motor 10 through the medium of a small pulley 11, fast to the motor shaft, and the belt 12; the motor being supported by a bracket 13 secured to the housing 4.

Fast to the upper end of the spindle 7 is a horizontal cross bar 14. having each of its ends upturned. to form an impeller blade 15 which! revolvesin close proximity to the Wall of the., tub; the lower corners of the tub being rounded,l as indicatedat 1 and the impeller blades being correspondingly formed adjacent thereto. As shown best in Figs. 7 and 8, each impeller blade 85 projects upwardly at an angle in a direction reverse ,to the travel thereoffor a purpose to be s explained.

Arranged about the inner wall of the tub immediately above the upper ends of the impellerv blades are baille members 16, these baille members being of angle form with one Wing of each` secured to the wall of the tub in any suitable manner and the other wing thereof projecting inwardly from the Wall. These baille members are 9 in parallel relation but are each arranged at an angle so that they lean from bottom to top in' the direction of the travel of the impeller blades so that the angular relationI of the bailles and impeller will be as shown best in Fig. 8.

The lower end of each baille member has an inturnedlug 17 and hung on these lugs is a pan 18, the upper edge of the pan having anvoutturned l flange for that purpose. The pan hasa removable bottom 19 which is provided with a central open- 105 ing having an inturned flange 20 upon which is f removably ,seated a screen member 21. This pan. member has two functions, one being to provide for straining the dirty water and the other being to coactwith -the wallof the tub to provide no ber of wires so bent as to form supports for the dishes. Each wire is wrapped with a single turn at two points 23 about the ring 22 so as to provide an upwardly and inwardly projecting loop 24 and to also provide two downwardly and inwardly projecting flexible rods 25, the lower end of each u of which isxbent in the form of-a ring 26. The

rings 26 arespaced apart so that flat dishes may be inserted therebetween, while the loops 24 progripping member vide supports upon which are laid suchdishes as cups and the like, and over which are inserted such dishes as' drinking glasses and the like. Within the lower portions of the dish supporting members 25 is placed a ring 27, which is supported by the removable bottom 19 of the pan and which is surrounded by a garter spring 28, this ring and spring being for the purpose of keeping the dishes which are placed between the rings 26 in place therein, the edge of a dish entering between the coils of the garter spring for this purpose.

The upper end of the bowl or tub is closed by members which are carried by a table. The table has a top which is formed by outer wooden frame members 29 to which is secured a top proper 30 of any suitable material, the table top being connected to and supported by suitable legs 31. The portion 30 of the top is provided with a circular opening 32 which is designed to be closed by a transparent cover 33, this cover being slidably mounted in suitable ways 34 on the under side of the top 30 andprovided with a suitable knob or handle 35 by which it can be conveniently slid to different positions. Carried `by the under side of the top 30 in line with the opening therein is a metal cover` 36, the lower edge of this cover having a slip connection with the upper portion of the tub 1 as shown in Fig. 1; the upper edge of the tub 1 being formed with an enlarged portion 1" to form a shoulder which receives the lower edge of thecover`36 which is preferably rolled tov form a bead as shown.

For the purpose of filling the tub with water and draining the water therefrom there is provided a flexible hose 37, a pump 38 and a flexible connection 39. -The flexible connection 39 extends between the lower portion of the tub and the pump casing, While the hose 37 has one end connected to the pump casing and the other end provided with a soft rubber nipple 40 (see Fig. 5) which may be slipped into an ordinary hot water kitchen faucet. Within the hose 37 adjacent this nipple is a metallic valve casing 41, the outer end of which is formed with a seat 42 for a ball valve 43 which is normally held to its seat by a. coil spring 44 interposed therebetween and a flange 45 formed on the inwardly bent inner end of the casing 41. A ring 46 is preferably inserted in the hose adjacent the rear end. of the valve casing to support the hose at this point, a second ring 46' inserted in the nipple for the same purpose, and the exterior of this portion of the hose is preferably provided with a soft rubber 47. Provision is made for manually unseating the ball valve 43 and to that gend there is inserted through the hose and its gripping member on the soft side of the seat 424 a small trigger-like member 48j which is normally heldin the position shown in Fig. 5 by the natural resiliency of the rubber of the hose and f gripping member but which may be moved by pressing upon the outer end thereof so as to temporarily unseat the valve for the purpose to be explained.

The pump is of the ordinary centrifugal type which builds up appreciable pressure with the check valve closed,. this pump being. operated from the motor 10 by passing the belt 12 about a pulley 49 about the shaft 50 of the pump. YThe opening in the bottom of the tub 1 with which the house connectionl 39 communicates is preferably provided with a strainer 51.

For the purpose of accommodating the hose when not in use there isl provided beneath the table top a compartment 52 having anA opening 53 through which the hose may be withdrawn and replaced; This compartment also accommodates the current-carrying cord 54 for the motor.

In addition tothe dish rack described, there is also provided a small receptacle for silverware as shown in Fig. 1 which may be placed in the pan 18, the legs 25 of the dish rack being discontinued at one point to accommodate this holder. The holder consists of a small metal bowl 55 having its lower portion 56 provided with a series of perforations for drainage purposes and its upper portion open. Suitably secured to the upper edge thereof is an annular member 57 which projects downwardly and inwardly into the bowl to act as a support for the knives, forks and spoons placed therein, such utensils being preferably inserted with their handles downwardly.

In operation, when it is desired to use the machine, the glass lid 33 is slid back and the rack filled with dishes in the manner described and the bowl 55 with knives, forks and spoons, and a. small amount of suitable cleansing agent placed in the machine. motor ,started to revolve the water impelling blades 15 and operate the pump 38. The hose 37 is then removed from its compartment and the nipple inserted in the hot water faucet, and the hot water turned on, the nipple being held in the g faucet by hand until the tub has been supplied with a suitable amount of water. As the water rises in the tub it is thrown upwardly by the impellers so that by watching the water through the glass lid the sufficiency of water can be determined. When a sufficient amount `of water has been placed in themachine the faucet is shut off and the hose disconnected therefrom. During the ow of the water to the tub the check valve 43 is forced from its seat by the water pressure. and g" the water pressure being greater than the pressure of the pump, the water is permitted to ow through the pump casing to the tub.

Referring to Figs. 6, 7 and 8, the action of the The lid is then closed and the jj:

water is as follows: The water after entering the tub is directed to the converged annular throat within which the impellers move, this throat being formed by the wall of the tub and the wall of the pan 18. The water is thrown by the impeller upwardly and forwardly, considering the direction-of travel of the impeller blades as indicated by the arrows a in Figs. 7 and 8, the water striking against the baffles 16. Some of the water is directed inwardly by the baffles as shown by the arrows b in Figs. 6 and 7, while some of the water directions against the dishes in the racks and the silverware in the'small bowl, thoroughly cleansing the same. During the washing operation the pump has continued to operate, tending to force water Vthrough the hose 37 which is prevented, however, by the automatic closing of the check valve 43. y i p After the washing operation has been completed, the free end of the hose is placed in the sink, the check valve 43 forced from its seat by the trigger 48, whereby by the action of the pump the water in the tub is discharged into the sink. After the tub is emptied, if desired, another lcharge of hot water may be placed therein and again emptied in the manner before described for rinsing purposes. 'Ihe operator can determine when the tub is emptied by observing the iow of water from the nozzle or nipple and when emptied the machine is stopped` and the hose coiled up and returned to its compartment.` The lid is then opened and if the water is suficiently hot the dishes will dry in a few minutes.

It will be observed thatv during the entire operation of washing, emptying, relling for rinsing purposes and again emptying, it is not necessary to stop the machine, but if desired the machine' may be stopped at any time to add a forgotten dish. .The machine is self cleansing, the water action being so violent that all parts within the machine'are kept clean, but if desired the dish rack and pan may be readily removed by lifting the table sufiiciently to'disengage the slip connection between the tub and its cover 36 and then moving the table to one side, after which the removable part may be readily taken out. The dish rack, pan and the bottom 19 for the pan, ring 27 and its garter spring drain 2l and bowl 55 are all readily separable so lthat they can be each individually thoroughly cleansed at any time desired.

Having thus described my invention, I claim:, 1. In a machine of the character described, a

stationary container, means for supporting dishes therein, a revoluble water impellery adjacent the .y `wall of the container extending upwardly on anw incline reverse to its direction of travel to direct the water upwardly, and a series of deiiectors on the interiorA of the wall ofthe tub above said.` impeller each inclined from bottom to ltop in the..- direction of the travel of the impeller to direct the wat-er inwardly.

'2. In a machine of the character described, af stationary container, means for supporting dishes on the interior of the wall of,y the tub above saidv ini/peller cach inclined fom bottom to top in the ,f Cir/direction ofthe y'travel of the impeller to direct ytravel of said impeller yto direct thel water upwardly, and a dish rack supported in said pan the water inwardly, the upper corner of said` container being rounded to direct water passing said deilectors in an inward and downward direction.

3. In a machine' of the character described, a stationary container, a member in the lower portion thereof and spaced from the walls thereof to form an annular throat, a revoluble water impeller operating in said throat to direct water upwardly, and a series of deiiectors above the path of travel of said impeller to receive the water therefrom and direct it upwardly, said impeller extending upwardly at an incline reverse to its'direction of travel and each of said deiiectors extending upwardly at an incline in the direction of the travel of said impeller.

'4. In a machine of the character described, a stationary container, a member in the lower portion thereof and spaced from the walls thereof to form an annular throat, a revoluble water impeller operating in said throat to direct walter upwardly, and a series of deflectors above the path of travel of said impeller to receive the water therefrom anddirect it upwardly, said impeller extending upwardly at an incline reverse to its direction of travel and each of said defiectors extending upwardly at an incline in the direction of the travel of said impeller, the up` per corner of said container being rounded to direct the water which passes the deflectors in a downward and inward direction.

5. In a machine of the character described. a stationary container, a stationary pan in the lower portion of said container and spaced from the walls thereof to form an annular throat open at the top, said pan having a screened drain opening in its bottom, a revoluble water impeller operating in said throat to direct water upwardly, and a series of deectors above the path of travel of said impeller to receive the water therefrom and direct it upwardly, and a dish rack supported by said pan and extending above the upper portion of said pan into said container.

6. In a machine of the character described, a stationary container, a pan in thelower portion of said container and spaced from the walls thereof to form an annular throat open atJ the top, said pan having a screened drain opening in its bottom, a revoluble water impeller operating in said throat and having blades inclined reversely Ato the direction of travel of said impeller to direct water upwardly, a series of deectors above the path of travel of the blades of said impeller to receive water therefrom, said deiicctors extending upwardly at an incline in the direction of and projecting above the same.