US1671557A - Dishwashing machine - Google Patents

Description

May 29, 1928.

o. P. TYLER DISHWASHING MACHINE Filed April 15. 1921. 2 Sheets-Sheet & 7 5

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o. P. TYLER DISHWASHING MACHINE Filed April 15, 19211 2 Sheets-Sheet 2 Patented May 29, 1928.

UNITED STATES OLIVEBJP. TYLER, OF WORCESTER, HASBAOEUB ETIB DISHWASEING MACHINE.

Application filed April 16, 1881. Serial No. 481,481.

This invention relates to a machine for use in washing dishes and other frangible objects of irregular shape.

The principal objects of the invention are to provides. practical device of this character in which the dishes can be placed in position conveniently and will be held in that position without rotation and in which the washing water will be distributed on the surfaces of the dishes with considerable force by means of a series of vanes rotatiihg around the support for the dishes; to provide these vanes in a readily removable form for facility in cleaning; to provide convenient supporting means for tumblers and similar articles which will hold them in proper position for washing, and then to turn them into suitable position for draining; and to. provide a convenient form of supportihgde for the dish holder on which the same ca be located outside the washer and which will cooperate with the parts when inside to support the holder therein. Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanyin drawings, in which:

ig. l is a side view partly in section of a preferred embodiment of the invention;

Fig. 2 is a sectional view on the line 22' of Fig. 1;

Fig. 3 is a detail sectional view showing certain gearing showing the connection of the controller with the operating parts;

Fig. 4 is an end view of the dish holder showing it as it is located in the washer;

Fig. 5 is a similar View showing it as mounted on a table outside the washer;

Fig. 6 is an edge view of a device for bolding a tumbler constituting part of this invention;

Fig. 7 is'a diagrammatic view illustrating the operation of this machine;

Fig. 8 is a sectional view partly diagram matic showing in detail the method of operating one of the valves electrically;

Fig. 9 is a sectional view showing a modification by which the valves can be operated mechanically;

Fig. 10 is a sectional view similar to a part of Fig. 8 showing how another form of valve can be operated by the mechanical construction shown in Fig. 9, and

Fig. 11 is a sectional view of the air valve showm means for operating it either mechanica y or electrically.

I have shown the parts as mounted on a base or table 10. This is shown as having a casing 11 in which is an electric motor 12 for operatingthe parts. This motor has a shaft provided with a pinion 13 operating a gear 14 on a shaft 15. This gear also operates a inion 16 which, by means of a clutch 17, is adapted. to operate a drying fan 18.

The shaft on which the pinion 16 is mounted has a bearing in a bracket 19 connected with the casing 11 and su ported thereby. The fan is provided wit a conduit 20 through which it discharges air into the machine as will a pear, and with an entrance opening 21 for t e air.

The shaft. 15 is provided with a worm 23 o erating a worm wheel or gear 34 on a s aft 35 called the controller shaft. This controller shaft therefore is cause to rotate constantly by the motor. It is provided with a series of projections 37 for making electrical connections with contact members 38 which are mounted on a bracket 39 in which the shaft 35 has a bearing. It also has a pointer 40 on the end outside the casing 11 so that the operator can see what is going on from this inter. Fig. 7 indicates the pointer on t e outside of the casin and a die ram which can be located there i desired to indicate the particular operations being performed. The position of the pointer always shows what operation is taking place. The machine proper comprises a casin 50 having a substantially semi-cylindrica washing tank 51 inside at the bottom. It supports at one end the shaft 15 and at the other a stud 52 which is stationary. The shaft. 15 operates a rotary ca e 53. This cage consists of two circular en s concentric with the shaft and having longitudinal radial vanes 54 connecting them near the circumference. These vanes constitute the cylindrical open wall of the ca e. Each of these circular ends is divid in two diametrically as indicated by the two horizontal lines in Fig. 2,,o1ie half in each instance being hinged to the other half at 53 so as to lift from it, when brought to rest right side up, to permit removal of the cage,

or permit insertion of the dish holder 55.

former has a non-circular art to ermit the shaft to rotate the cage. Q'Vhen t e ca e is brought to a position in which one ha 1? is above the other this half can be swung up on its hin es 53 and then the lower half can be rotated around the shaft and stud to bring it u to the top thereof and enable it to be ta en out.

Insidethecage is located in stationary position a holder 55 for the dishes. This holder is provided at each end with a slot 56 extending radially from the center to the edge having a counter-sunk portion 57 surrounding it for receivinga loop-shaped supportin member 58. As hung on the shaft 15, which has a Cylindrical end, and stud 52 the loop-shaped member 58 is simply held 'in position in the enlargement 57 as shown in Fig. 4. As this container 55 does not rotate it is simply held in this osition. When it is desired to take it out of the washing machine, the upper part of the cage is swung up and the holder is lifted out. Then the loop member 58 on each end drops down until stopped. Then two legs 60, pivoted to the bottom of each of the loop-members, are in position to project down below the bottom of the container 55. These then serve as sup orting legs, coming against inclined wal s constituting the sides of inclined guide grooves 61 which prevent all movement out- ;vardly further than the position shown in This open top ed holder 55 is provided with a partial cy indrical wall 62 of woven metal fabric or the like for admitting water through it and holding the dishes in it. It is provided with fiat solid ends which are shown also as provided with handles 63 for manipulating it.

The lower part of the washing tank 51 is intended for holdin water. 'When the washing of the dishes is to be erformed hot water has to be employed an suitable soap or other detergent introduced into it. A further supply of water is provided in a tank 65 above the bottom of which constitutes the top of the tank 51. This is provided with two valves 66 and 67, the operation of which will appear later. An outlet valve 68 and an air inlet valve 69 are also employed. All of these valves are connected with the several electrical connection 38 and can be opened one after another by the operation of the controller in the order which will be described.

The contacts 37 and 38 of the several pairs are connected with a source of power, as for example a step down transformer 80 by a circuit 81. When the contact is made a magnet 82 in that circuit is energized. This, inthe form shown in Fig. 8, attracts one end of a lever 83 which pushes a rod 84 st the action of a spring 85 and lifts ti 0 valve 67 as indicated. It will be understood that various types of valves can be employed and that this is a mere illustration of one way of working one kind of valve.

For working the valves mechanically the whole electrical device can be eliminated and the shaft 35 provided with a series of projections or earns 90. These can be arranged around the shaft in any desired order to secure the expected results. On rotation of the shaft each of these projections 90 comes into contact with a rod 92 similar to the rod 84, above mentioned, and operates a lever 93 which is connected to lift the'valve 68 or other valve as may be desired.

In Fig. 11 I have shown a form of air valve 96 which consists of a slidable grid adapted to open and close valve openings 69 and operated by a lever 98 and rod 99 in either of the ways above mentioned.

In addition to the above elements two electrical heating elements are shown also connected with the controller and operated thereby. They are used for heating the air,

while drying and also, if desired, for heating the washing and rinsing water, or separate units can be used for the several purposes. I

In Fig. 6 I have shown a device for use in supporting the tumblers which consists of a plate 74 pivoted at 79 having projections 76 on the edges for engaging the top and bottom of the tumbler. One of these can be arranged for each tumbler but preferabl the device is arranged to support a half dozen or any number as viewed in alignment. A float 77 is employed, which on account of the water in the bottom of the tank will hold that end of the device up about the pivot 79 in the full line position shown in Fig. 6 as long as there is water there. This leaves the tumblers in the position shown, which is a suitable position for receiving the .water splashed from the rotating element. Thus the tumblers are washed readily. When the water is'drawn out for draining, rinsing, and drying purposes the tumblers will be allowed to sink down at the right hand end about the pivot 79 because the float 77 will then drop, as shown in dotted lines in F i 6, with the lowering of the water level. T is leaves the tumblers in proper position for draining during the drying operation. a

In the operation of the machine shown after the dishes are lit in place the valves 66 and 67, or one of them, are opened and hot water poured in at the inlet 75 until the water begins to flow into the over-flow pi e 72 and ap ears at the outlet 73. This fifis both of t e tanks 51 and 65. Then, the valves 66 and 67 and 68 are closed. Soa preferably is introduced first into the t 51 before the water is poured in. No soap is put in the tank 65. v

' The controller is stop ed at .the point indicated in Fig. 7 and I? The shaft rotates constantly and likewise the controller and its pointer. Now, as the motor and the shaft 15 continue to rotate, the cage 53 will rotate. As each of the vanes comes up rapidly out of the water it will carry hot soapy water with it and later dump it over and splash it on the dishes in the holder 55. In the Specific form shown this action will continue while the controller is traveling through approximately one-third of a complete revolution. Then one of the fingers 37 will contact with the proper finger 38, make a connection, and the valve 68 will be caused by the electric current completed I ;hereby to open. This allows the dirty water in the receptacle 51 to drain out ,through the drain passage 71. The controller continues to operate and at suitable time proper connection is made with the same pair of fingers 38 to close the valve 68 immediately after the lower part of the machine has been emptied. Then immediately the valve 67 is opened in the same way. It will be understood that at this time either one orboth of the valves 66 or 67 may be opened in accordarice with which the machine is set for operation. The further rotation of the controller closes this valve 66 or 67 when the clean hot water in the tank 65 has all been drained outinto the bottom of the receptacle 51 occupying then the same position as the soapy water'did originally. The cage 53 has been.

rotating all this time and now continues to do so through less than a third of a revolution of .the controller. It itself makes several revolutions and splashes clean water over the dishes to rinse them. When this operation is completed the proper finger 37 has been emptied out of ,the receptacle.

Now the controller in its continued rotation operates to open the air valve 69, and to throw in ,the clutch 17 to start the blower.

' controller passes through another third of a revolution approximately a complete revolution is completed and the valve 69 will be closed by the connection of the proper finger on the controller, the clutch 17 thrown out thereby, and the machine stopped. It will be obvious that all the valves are then left closed so that the tank 65 is ready to receive another charge of water.

If the operator desires to take out the dishes now after they are washed, rinsed and dried, that is a very convenient operation, the tank 65 being removed and the top of the cage being thrown back about the hinges 53 which are now located a little above the position shown, so that the dish holder can be taken out and set down on the table as shown in Fig. 5.

It will be seen that the washing operation can be carried out effectivel without moving the dishes, and therefore without any special danger of injuring them, and that the water is applied to them angularly but with con-' siderable force so as to operate effectively.

The machine can be run as long as desired, that depending on the character of the work done, or rather on the condition in which the dishes are when the operation is started. The device is easily loaded and takes up very little room.

Although I have illustrated and described only one form of the invention, I am aware of the fact that many modifications can be made therein by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore I do not wish to be limited to all the details of construction herein shown and described, but

What I do claim is 1. In a dish washing machine, the combination of a washing tank, a dish holder therein, and a rotary cage receiving the dish holder, said dish holder hanging freely in the cage but capable of being lifted out, with pivoted legs on the ends of the dish holder and stopping surfaces therefor, so that the dish holder can be supported on a flat surface.

2. In a dish Washing machine, the combination of a washing tank, a stationary dish holder therein, and a rotary cage having a series of spaced radial vanes, located in the tank outside the dish holder, said cage being diametrically divided into two parts hinged together at one side, said parts having openings for receiving supporting shafts o uds, whereby the upper half can beswung u and then the lower one drawn out.

In testimony whereof I have hereunto afiixed my signature.

OLIVER P. TYLER.

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