US1656139A - Dishwashing machine - Google Patents

Description

DISHWASHING MACHNE Filed Nov. 8., 1923 3 Sheets-Sheet 2 .13mm i928. 1,656,139

J. L. BRE-mm DISHWASHING MACHINE Filed Nov. 8. 1923 3 Sheets-Shee'k Z5 www@ Arme/VE V5 posesshall have raised the float and 4moved aside the obstructing rod. Upon reaching the proper levelpthe float releases a small weight28 which drops upon a small hammer 28, and the latter will strike against the handle 22 of the said emptying pipe so as to produce an audible signal. This arrangement provides a mechanical water level alarm which'is both simple and strong, and it requires no upkeep. A small opening 29 serves to hold a thermometer showing the temperature of the washing water.

The centrifugal pump 10 withdraws water from the heater and projects it upon the dishes in the rotating basket or holder through the apertured tubes 30 whereof one is placed horizontally according to a radius of the bottom of the said holder and the other is placed in the vertical position according to a generatrix of its cylindrical wall.

The motor, pump and blower group is placed upon a cast iron or aluminium base 32 of suitable shape which also forms one of' the three feet of the apparatus The motor 33, placed at the centre, drives on one side the centrifugal pump and on the other the blower, by automatic clutches of the inertia type which act in turn according to the direction of rotation whereby the pump and the blower can be successively operated by simply throwing the motor switch. Figs. 4 and 5 show two different types of these clutches, both giving excellent results. In Fig. 4, the movable mass is displaced upon a cfluick-motion screw and it is terminated by our saw teeth 33 co-operating with four like teeth on the actuated shaft, but in order to dampen the sudden starting shock, the latter member is supported by an elastic india rubber disc 35 secured by a flat ring and various screws to a metal dise 35a which is keyedrto the shaft of the pump or blower. In the arrangement shown in Fig. 5, the sawtooth clutch' is replaced by a hollow .cone 36 co-operating with the leather cone 37 the pressure required for a good coupling can be regulated by the spiral spring 38.

The centrifugal blower 39 withdraws the air through a conduit 40 opening into the cylindrical wall of the receptacle containing the said dish holder or basket. The said conduit 40 is divided up by a set of vertical wings made of light sheet metal, so as to avoid splashing ot the wash water into the blower.

The air ente-rs the apparatus through an inclined conduit 41 disposed in the cylindrical wall of the vessel and also provided with vertical wings chiefly intended to direct the flow of air upon the dishes in order to dry them while at the same time effecting the rotation of thebasket. The opening is closed by a hinged door 42 during the washing, in order toprevent splashing of water.

The said dish holding basket has a central tube upon whose upper part is disposed the pivot 5 resting upon the central rod 3.

To the central tube 50 are soldered or welded four members 5l each consisting of a. single piece of T-iron bent at right angles with the flange inward; two angle-iron hoops 52 are soldered or Welded to the exterior of the said members at the top and bottom; a cylinder 53 and a disc 54 formed of a large-meshed netting are mounted in the interior in order to constitute the bottom and the lateral wall of the basket or holder.

To the said netting are secured corrugated iron rings 43 whose loops have the same inclination as the edges of the plates.

The said arrangement, while securing thc plates in a perfect manner, enables the maX- imum number to be placed in a holder of a given size, for instance in a holder having c/m. diameter, and it also allows of dis posing (without any modification) plates or all kinds of dishes at will in any of the sections of the basket.

In order to control the accessory' a paratus which may be disposed upon tlie table formed by the cover of the machine, one of the automatic clutches may comprise, instead of a grooved pulley, a tapered disc 44, Fig. 5, (fo-operating by friction with a like disc 45 which is key-ed to the end ot a vertical shaft 46 controlling (by a worm) a worm 54 wheel 55 disposed in a closed casing secured to the cover, Fig. 6. The proper adhesion of the two conical discs is ensured by the pressure exercised by the worm of the automatic clutch.

In order to disengage this additional control, it is simply necessary to raise the vertical rod with its tapered roller by means of the knob with bayonet joint 47, Fig. 6. This arrangement, which eliminates the belt, has the advantage of controlling the automatic coupling of the blower by the simple operation of the descent of the vertical shaft, causing at the same time the rictioual contact of the two tapered rollers, so that the motor may control, by changing the direction of its rotation, the centrifugal pump or the blower.

The heating device for said apparatus is chiefly intended for use in kitchens having hot water piping; in this case, when the washing is completed, it is simply necessary to pour a fresh quantity ot hot water into the apparatus, and the dishes can thus be rinsed at once. But when cold water alone is available, it is necessary to wait until this water placed in the heater is heated to the proper temperature by the burner, and this will require a certain time.

I claim In a. dish washing machine, the combination of a washing vat, a dish holding basket rotatable in this vat, and adapted to rotate in a horizontal plane, means in said basket for between the said air pump and the said holding the dishes in nearly radial positions, Water pump and means for alternately couan air pump adapted to draw the air out of pling the said engine with the said Water l the said Vat, an ail' inlet nozzle in the Wai] pump and with the said air pump.

of said Vat and directed towards the said In testimony that I claim the foregoing as dishes, a Water pump adapted to inject Washmy invention, I have Signed my name.

ing water in the said Vat, an engine placed JULES LOUIS BRETON.

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