US954879A

US954879A - Dish-washer.

Info

Publication number: US954879A
Application number: US46401108A
Authority: US
Inventors: Kerstin Oestroem
Original assignee: Individual
Current assignee: Individual
Priority date: 1908-11-23
Filing date: 1908-11-23
Publication date: 1910-04-12
Anticipated expiration: 1927-04-12

Description

K; sTRM.

DISH WASHER.

APPLICATION FILED NOV. 23, 1908.

unitn ess es K. sTRM. DISH WASHER.

APPLICATION FILED NOV. 23, 1908.

Patented Apr. 12, 1910.

3 SHEETS-SHEET 2.

In verz/07' www K. STRM.

DISH WASHER.

APPLIOATION FILED Nov. za, 190s.

` Patented Apr. 12, 1910.

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DISH-WASHER.

Specication of Letters Pat-ent. Batented Apr. 12, 1910.

Application led November 23, 1908. Serial No. 464,011;

To all whom it may concern:

Be it known that I, KERSTIN Osfrnm, a subject of the King of Sweden, and a resident of Siljansns,in the Kingdom of Sweden, have invented new and useful Improvements in-Dish-Washers, of which the following is a specification, reference being had to the drawings-accompanying and forming a part hereof.'

T his'invention relates to dish-washers and drainers of the kind in which the dishes are exposed to the cleaning action of wat-er actuated by centrifugal orce.

The object of the invention is to provide a dish-washer of the said kind in which the water impinging the dishes is strained and caused to circulate so as to effect an efficient washing of 'the dishes Further objects of the invention will hereinafter appear.

In the rawings, I have shown, by way of example, two di'erent forms of a dishwasher embodyingthe invention. Y Figure 1 is a side elevation of the one embodiment. Fig. 2 is a horizontal section of the same on line A--B of Fig. 1. Fig. 3 is a horizontal section of the same apparatus on line C-D of` Fi 1. Fig. 4 is a plan view of the netting or retaining the dishes in position during washing. Fig. 5 is a central vertical section of the second embodiment. Fig. 6 is a horizontal section of the said latter embodiment.

Referring to Figs. 1-4 of the drawings, the apparatus has an outer wall 1 suitably cylindrical in shape and provided, at its top, with a cover 2. The inner wall of the apparatus is similar in shape to the outer one and suitably consists of a cylindrical part 3 having, at its top, a cover 4. The cylindrical wall 3 and the cover 4 are both perforated. The inner wall and the outer one are itted to a common bottom 5. Situated inthe cylindrical part of the apparatus is a door l6 having doublewalls corresponding to the

walls

1 and 3, respectively, so that a water chamber is formed in Athe door. The dishwater enters into this chamber through openings in the side-

walls

7, 8 and 9, 10, respectively (Fig. 2), and through similar openings in the up er'wall 11 of the door and the wall 12 of e door frame adjacent `thereto (Fig. 1).l Similarly to the wall 3, the

inner part of the door is perforated preferably over its whole surface. T he door or the to the shaft 13 are trays or crates 14 extending /rou'nd about the shaft and provided with upwardly directed edges, as shown in the drawing. The crates 14 are, suitably, adjustable along the shaft and adapted to be clamped in position by suitable clamping devices (not shown). The crates are perforated, similarly t`o the inner wall of the wash-chamber, on their whole surfaces and provided, at their upper sides, with suitable devices for retainin the dishes placed on the crates. Obvious y, the said devices are to be suited to the kind of dishes to be washed. The dish-holding crates may be formed of wire netting-or the like and they may be of the form and size most suitable for holding and retaining the dishes.

Placed above the outer vessel is a tank `or receptacle for dish-water, said receptaclel suitably consisting of an upper bowl 15 communicating with a chamber situated betweenthe cover 2 and an upper cover 18. Extending `through the bow and through the said chamber 1s a valve spindlel carrying, at its lower end, a valve 17 adapted to close a central opening in the cover 2. 'Water filled in the bowl 15 thus runs into the chamber between the

covers

2 and 18 arid fills the said chamber and the bowl. By raising the valve 17 the water `1s caused to run down into the washing vessel. The vessel is carried byfeet 19 so that there is a free space beneath the bottom 5. Flaced in the said space is the gearing connectedto the shaft 13, saidl gearlng consisting, in the embodiment illustrated, of a-bevel gear 20 connected to a pulley 21 driven by a belt anda crank wheel 22 placed at t e outer side of the vessel. Placed beneath the bottom 5 is a funnel 23, or the like, said funnel closing against an outlet opening in the said bottom, said Iopening being regulable by means of a slide 24.l The opening and funnel serve as an outlet .for the slope, which are thus received by the funnel 23 andled into a collecting vessel or drain.'

The netting 25 shown in Fig. 4 may be expanded, in the manner shown in the drawing, in the shape of a circle and 1s employed other crates may be retained by the upper crate adjacent thereto, which may 'be'lowered into close contact with thel contents of the crate under it, each of the upper crates '.thus forming a vcover for the lower crate adjacent thereto.

The apparatus described works in the following manner.'A lThe dishes are introduced through the. opened door, placed on the crates and fastened in such a manner that4 they cannot be thrown outwardly when the crates are rotated.v The door is thereupon well closed andthe bowl 15 and chamber below. ity are yfilled with hot water. The

crates with the dishes are caused to rotate and the. valve 17 is opened. rIYhedish-water now runs through the cover 4 into the vesf sel which is filled with water to a greater or smaller height. During the rotation of the crates the dishes are washed. by the water which, on account of the. rotation, is at the same t1me thrown outinto the space between -the walls land 3Q The remains of foodv are separated atthc inner side of the perforated wall 3 and thewater rises along the innerv side of the wall 1 and returns through the erforated washing vesselv cover 4 into the in order to again circulate as described. When the crates have rotated a few minutes, the slo s are drawn od through the opening in the ottoni of the vessel and the funnel 23. Thereupon the opening is again closed and hot water, referably with carbonate of soda or the li e dissolved therein, isv admitted, whereupon the rotatin and drawing off of the slops is re cated. hen a further quantity of water as been admittedand drawn ofi', the speedof rotation is increased for draining the dishes.

Referring now to Figs. 5 and 6, the apparatus comprises a frame 26 carrying a ,vessel27 the bottom of which is provided with an outlet of a comparativelyV large cross-sectional area regulable by means of a tap or cock28. Placed within the vessel 27, at a suitable,v distance from the wall, is a cylinder 29 of perforated sheet-metal, said cylinder bein attached to and carried by thebottom o the vessel 27. rlhe cylinder 29 isprovided with a cover 30 which suit-V ablyv slopes toward the center Where the cover has a large opening 31. Provided fat the sides of the said opening are other openings 32. Placed within the stationary cylinder 29 isa rotary basketl 33 made of perforated sheet-metal, netting, or

vthe like, said basket being placed at a dirtance from the stationary cylinder 29 so as to leave a space 34 between the said cylinder and the basket. The basket is carried by afyertical spindle 35 adapted to b'e'i'rotated by a crank 36 connected by suitable gearing to the'said shaft, las shown in F ig. 5. The

vertical wall of the basket 33 is provided with obliquely set slits 37 cut in the wall from the upper edge d own to the bottom and the edges of said slits are benti-nwardly so as to form inwardly directed, obliquely tered into the space 38 between the cylinder 29- and the outer vessel 27 rises along the wall ofthe latterand arrives at the cover 30 upon which it runs toward the center and through the

openings

31 and 32 therein down upon the dishes in order to again iinpingethe latter and stream outwardly 1n the same manner as before as long as the crank. is rotated.

r1`he"dishe's'in'closed within the basket 33 areJ suitably placed in holders of any con'- venient shapey and construction, said holders being, preferably, suited to the dishes to be washed. 1n the drawing (Figs. 5 and 6) 1 have shown a Aholder 39 forcomrnon plates, said holder consisting of two lower bars and one upper bar connected together at their ends by suitable end-pieces, and having a number of corresponding recesses for the plates which are placed ou edge in the said holder, one behind the other, in such a position that the waterimpinges and streams past thesanie. Dishes of other forni, such as cups, glasses, andthe like, are lplaced in other holders and in the. osition 1n which they are most easily accessi le to the impingling and whirling water.

The apparatus last described may be used in the following way: Hot water 1s poured on the greasy plates and the like, the cock 28 bein ke t open. |The cock is thereupon shut ott an the apparatus is filled to about 1A; of the depth of the basket 33 with hot Water which has been vmade soapy or in condition to dissolve grease from the dishes. The cock 28 is thereu on opened for a while, in order to drain o remains offood sunk to thebottom of the apparatus, whereupon it is again closed. The crank 36 is then slowly turned for a minute, whereupon the speed is increased. This increase in speed causes the water to rise in the outer space 38 and to stream back toward the center. l/'hen the apparatus has thus been running about 3 minutes, the Washing is almost completed, and while the crank is still rotated f all the water is rapidly drawn ol 'lhe cover 30 is thereupon removed, without the apparatus being stopped, and a few scoops of hot water are poured on the dishes, while the cock is ke t open, so that the water rapidly runs 0E.' The speed of rotation is now increased and continued for a minute so as to dry the dishes. The apparatus is thereupon stopped and the dishes are leftfor a-While for allowing the water to evaporate. When the dishes are then removed, they are dry and clean, at least as far as porcelain vessels are concerned, ywhereas glasses and the like may sometimes require a short subsequent drying.

In conclusion I wish to point out that I do not restrict myself to the precise details of construction and arrangement hereinbefore described and illustrated, since it is obvious that the apparatus may be varied considerably and in many particulars without departure from the principle of my invention.

Iclaim :1.

l. In a dish-Washer, the combination of a vessel, a perforated casinginside the said vessel, at a distancefrom the wall thereof, a cover at the top of the said casing, said cover having openings allowing water to run down therethrough, a rotary basket situated inside the said casing, and means for rotatingl the said basket, substantially as and for the purpose set forth..

vessel, a perforated casing inside the said,l

vessel, at a distance from the wall thereof,

a vcover at the top of the said casing, said.

cover having openings allowing water to run down therethrough, a rotary receptacle situated inside the said casing, said receptacle havin exten ing anges on one edge of the said slits, and means for rotating the said receptacle, substantially as and for the purpose set forth.

In a dish-washer, the ycombination of a vessel, a perforated casing inside thesaid vessel, at a distance from the wall thereof, a cover at the top of the said casing, said cover having openings allowing water tok run down therethrough, a rotary receptacle situated inside the said casing, said receptacle having slits extending obliquely from the top of the rece tacle 'tothe botslits in the wall thereof, inwardly.

tom thereof, flanges exten ingjnwardly and forwardly from the rear edges of the said slits, and means foi` rotating the said receptacle, substantiallyas and" for the pur-p pose set forth.

lKunsrnu sTRM.

vVitnesses:

JOHAN VICTOR WAHLSTRM, GEORG HENNIX.