US1686456A - Dishwashing machine - Google Patents

Description

Oct. 2, 1928. 1,686,456

A. e. KOHLER DI SHWASHING MACHINE Filed March 15, 1926 2 Sheets-Sheet 1 EX fOR. 170/? G 1%HLE/T.

ATTORNE get. 2, H928, 1,686,456

A. G. KOHLER DI SHWASHING MACHINE Fi led March 15, 1926 2 Sheets-Sheet 2 I NVENTOR.

ART/10W G flEHLE/i.

BY J

ATTORNEY.

A if F F 1C ARTHUR, G. KOHLER, OF NEW ROCHELLE, NEW YORK.

DISHWASHING- MACHINE.

. Application filed March' 15, 1926. Serial No. 94,963.

This invention relates to washing machines and in particular to a type adapted for use in the cleaning of dishes, saucers, cups and the like.

A particular object of the invention is to rovide a dish washing machine which will e compact and which will 'etfectively clean the dishes with a minimum consumption of time and at small operating cost.

A further object of the invention is to provide a dish washing machine in which fast moving sprays of water are swept across the surface of the dishes so that the same will be thoroughly cleansed and also to provide a means for causing the movement of the spray of water with such rapidity that it will cut the grease and other hardened substances from the faces of the dishes.

A still further object of the invention is ac to provide a simple construction'embodying a series of nozzles which will operate in a centrifugal maner to cause the impingement of streams of water across the faces of the dishes.

A further object of the invention is to pro- Vide a simplified construction having few parts and one which can be adopted for household use or which can be made upon a large scale for use in restaurants which will eificiently and thoroughly cleanse the dishes.

To enable others skilled in the art to fully comprehend the underlying features of my invention that they may embody the same in l the various modifications in structure and relation contemplated, a drawing depicting a preferred form has been annexed as a part of this disclosure and in such drawing similar reference characters denote corresponding parts throughout all the views, of which,

Figure 1 is a view in elevation, the same being a section taken on the line 11 of Figure 2 in the direction indicated by the arrow and arranged to show the interior of the machine.

Figure 2 is a section taken on the line 22 of Figure 1 and shows the interior mecha-f nism of the machine and principally the tray supporting member for holding the dishes in position to be washed.

Figure 3-is a top plan vlew of the washing machine, the cover thereof being broken away to expose the interior of the machine.

Fi re 4 is a fragmentary section taken on the line 44 of Figure 3, showing the shape of one of the ejectors used in throwing a stream of water across the faces of the dishes.

form of water throwing device used to throw streams of wateracross the faces of dishes to be cleansed, and

Figure 9' is a section taken on the line 9-9 of Figure 8 showing the construction of. the water throwing device.

Referring to the drawing in detail, 5 indicates the tank portion of my improved washing machine, which, as shown in the drawin is of substantially square formation and is provided at its upper edge with'an inwardly sloping flange 6 which serves the purpose of draining the water back into the tank after the same has been projected into the cover 7 which is hinged as at 8 to the tank portion of the washing -machine. This cover 7 is semi-cyiindrical in shape and is provided at one side with a handle 9 whereby the same may be swung upon its hinge 8 so that a suitable dish holding tray may be placed in position upon a support 10, which is positioned in place in the tank 5. This frame 10, or support, is constructed of wire, and is arranged with suitable feet portion 11 and a rail 12 which retains the dish tray 13 in position therein. This supportlO may be made of a single piece of wire and suitably bent upon itself to form the legs 11., The dish holding tray 13 may be of any conventional type consisting of the side walls 14:, between which extend the dish supporting cross wires 15 and it will be evident in Figure 1 that the bottom of the dish tray is made of latticed wire so that streams of water may pass therethrough and impinge upon the faces-of the dishes or travel across the faces of the dishes depending upon the direction the stream ta es.

The tank member 5 consists of the side walls 16 and bottom 17 and is arranged to hold the liquid 18 which is the usual mixture of soap and water and which. is sprayed across the faces of the dishes held in the dish tray 13.

In order to accomplish this spraying, I provide at the center of the bottom 17 of the tank 5 a suitable packing joint 19 through which passes the operating shaft 20, the upper-end of which is disposed within the tank 5 and carries at its extremeupper end the disk like turntable 21, which is secured to said shaft through the medium of a' flanged collar 22. The lower end of the shaft 20 is journaled in a thrust bearing 23, which is supported in I a bracket 24 carried by the supporting frame 25, this supporting frame consisting of standard members 26 joined by the connecting strap or bottom 27, upon which is mounted in an suitable manner the operating motor 28. he motor shaft carries at its outer end the worm 29 which meshes with and drives the worm wheel 30 secured in the usual, manner to the driving shaft 20.

It will be evident that the operation of the motor' will cause the turntable 21 to rotate at high speed and in order to project the liq uidin the tank 18 across the surface of the dishes held in the tray 13, I secure as by soldering or in any other desirable manner to the turntable 21, the nozzle members 31, the lower portions of which are disposed beneath said turntable and the extended portions 32 of which pass upwardly through a suitable opening in the turntable and are shaped-to provide a flattened mouth 33. It will be particularly noted that the mouths 33, of the ejector nozzles, are smaller than the intake ends thereof, so that the pressure of the water entering the mouth of the nozzles will cause the issuance of the water through the ejector end of the nozzles at an increased velocity. It is evident that the rotation of the table at high speed Y thorough] have a rotary motion, which will will cause the passage of the water through the nozzles and the emission therefrom in fast moving streams, which will be projected upwardly and will travel across the face of the dishes held in thebasket 13. Upon inspection of Figure 3 it will be noted that the nozzles are so staggered relatively and so arranged diametrically of the table that during the operation-of the machine, a wall of water will be ejected from the nozzles and will impinge upon all of the dishes'in the tray, the wall of water being a continuously moving one in rotation and also having a high velocity will cleanse the dishes of grease or other foo stuff, which has become hardened thereon. Any suitable type of nozzles may be employed and any number may be used in spaced relation across the turntable, so that. a complete wall of water will be projected across the surface of the dishes to be washed.

It is evident that the table in its turning movement and due to the capillary attraction of the water will, during its rotation, also cause the body of water within the tank to adually increase until it assumes the rotatmg speed of the table. When this has occurred, no water will be forced up through the nozzles flange strip 36 through the medium of which said baflies ma be secured to the bottom 17 of the tank. hecutouts 35 are arranged for the purpose of allowing passage therethrough of the mouth ends of the nozz1es31 during their rotation'with the table. It is evident that this baflle will prevent rotation of the water in the tank by offering an obstruction thereto.

While I have shown the type of bafile illustrated in Figure 5, in conjunction with the machine, it is to be understood that any type of baflle which will serve the purpose might just as well be used. For instance, in Figure 6 I have shown va substantially L-shaped be shaped to provide scoop like blade portions 41 having an overturned top portion 42, in which are formed the ejecting ducts 43. It is evident that the rapid rotation of this ejecting member will scoop'up the water and will force the same in streams through the ducts 43 so that the streams of water will impinge upon the dishes to be cleaned.

Any other suitable means can be used in conjunction with the table for projectin streams of water upwardly through the disfi holding tray and I do not wish to be limited to the precise showing of the form of nozzles illustrated in the figures of the drawing, It will be evident, therefore,'that I have provided an improved dish washing machine which can be made up at small cost and which through its operation will direct a continuous stream of water across the faces of the dishes at high speed, thereby forcibly cleaning the dishes of any grease or other food stuffs that may have a tendency to adhere thereto. Also, it will be evident that I have provided a dish washing machine into which a quantity of soapy water may be placed which can be used repeatedly to give the dishes the preliminary cleansing prior to the rinsing thereof with clean water.

While I have illustrated and described my invention with some degree of particularity, I realize that in practice various alterations therein may be made. I, therefore, reserve the right and privilege of changing the form IOU aeeaeee of the details of construction or otherwise altering the arrangement of the correlated l. A dish washing machine comprising a liquid holding tank, a rotary disk member in said tank, a dish holding tray therein and nozzles carried by and extending through the disk member for projecting the liquid in the tank vertically in streams and said nozzles being so shaped that their portions disposed beneath the disk are elongated vertically and above the disk are elongated horizontally.

2. A dish washing machine comprising a dish holding housing in the bottom of which a cleansing liquid is held, a rotary disk mem ber disposed in the housing. nozzles extending through the rotary member arranged with intake ends thereof below said rotary member, the intake ends of the nozzles being of larger area than the outlet ends thereof and the nozzles being so arranged diametrically of the disk that a wall of water is projected.

3. A dish washing machine comprising a housing the lower part of which constitutes a reservoir, a support in the housing for holding dishes, a rotatable disk member below said support, nozzles carried by and extending through said member and having the portions thereof under the disk extending into said reservoir whereby when said disk memher is rotated, the liquid in the reservoir is forced through said nozzle to impinge upon the dishes the nozzles being positioned at difierent radial distances from the shaft whereby awall of liquid is projected, and bafies in the reservoir for preventing movement of the liquid with the disk. v

4:. A dish washing machine comprising a liquid chamber, a rotary disk-like member in said chamber having nozzles positioned thereon for scooping up the liquid in said chamber and projectmg the same vertically, a shaft upon which the rotary member is carried, means for operating the shaft to cause operation of said rotary member, and the nozzles being positioned at different radial distances from the shaft, whereby a wall of liquid is projected.

' 5. A washing machine comprising a rotary disk, a liquid tank in spaced relation with the bottom of which the disk is disposed, means for operating said disk, nozzles carried by the disk and disposed in staggered relation across the disk, the entrance to said nozzles being larger than the exit thereof whereby velocity is imparted to the liquid forced therethrough during operation of said disk member, baffles on the bottom of the tank having openings to permit passage therethrough of the nozzles, said baflies preventing travel of theliquid in a body with the disk.

In testimony whereof I aliix my signature.

ARTHUR G. KOHLER. [n a]

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