US1414058A - Dishwashing machine - Google Patents

Description

M. M. UTTERBACK. DlSHWASHl-NG MACHINE.

APPLICATION FILED SEPT. 17

Patented Apr. 25, 1922 2 SHEETSSHEET I.

IN V EN TOR.

A TTORNEYS. i

n n u'i m M m m d M. M. UTTERBACK. DISHWASHING MACHINiE. APPLICATION FILED SEPT. I7 1921 I 25,1922. flo I 2 shins- H IN V EN TOR. M l/rrg/ranclr UNITED STATES eAr N'o FFICE.-

MELVILLE M. UTTERIBACK, OF CHELAN, WASHINGTON;

DISHWASHING MACHINE.

-T 0 all whom it may concern:

Be it known that I, MELVILLE M. U'I'IER- BACK, a citizen of the United States, and resident of Chelan, county of Chelan, and State of Washington, have invented a new and useful Dishwashing Machine, of which the following is a specification.

The present invention relates to improvements in dish washing machines and its object is to provide a machine of, the character described that is particularly efficient in washing dishes, needs only a limited supply of water, works with soapywater as well as with clear Water, is exceptionally well arranged so that the water strikes the dishes directly without missing any portions of the same, and at the same time is simple in construction and can be used as akitchen table, when not used as a washing machine.

The principles involved in my invention are embodied in the preferred washing machine shown in the accompanying drawing, in which Figure 1 is a perspective view'of my washing machine; Figure 2 a side view of the same, a portion of the front being broken away to disclose the interior; Fig ure 3 an enlarged detail view of a belt tightener; Figure 1 a cross section through a tray along line 4-4 of Figure 5; Figure 5 a top plan view of the tray;"Figure 6 a perspective view of a spoon holder, and Figure 7 a side view of a drum used'in my device for agitating the water.

In detail the washing machine (1) coinprises a preferably rectangular box (2) having two sides (3), two end pieces (4), a horizontal top (6) and a sloping bottom (7). A portion (8) of the top is stationary and serves as support for the motor (9), while another portion (11) is hingedly connected to one of the sides, as shown at (12).

The sloping bottom provides a deep portion (14) in the box, which holds the agitating means for the water, and a shallow portion (16) adapted to receive the dishes. The principal part 'of the latter portion is the tray (17). whichis shown in detail in Figures 4 and and is adapted to receive the dishes and to be slid into the box, until it is stopped by the stop (18). This tray is an open. rather flat box. screened on the sides, as shown at (19), and provided on top with a plurality of wires (21) crossing the box diagonally. These wires are provided for the support of the dishes which are placed I Specification of Letters Patent. Patented Apr. 25 1922 Application filed September 17, 1921. Serial No. 501,504.

between the wires on edge and prevented from rolling by a plurality of cross wires (22). It will be seen'that when the tray is placed inside the box, dishes is disposed in such'a manner as to present a. slanting. surface to a stream of water coming from the agitator. This tray is intended to take the plate shaped dishes, while for the cups I provide a plurality of hooks (23) secured'in one or both of the sides of the box. One corner (24) of the tray is left unoccupied by diagonal wires and provided with a screen at the bottom. This portion is reserved for the knives and forks, while for the spoons I provide-a special cylindrical receptacle (27) having as its principal features a base (28) and a vertical, cylinder-shaped 'body of wire netting for the support of the spoons. This holder is placed in any convenient place where it will be struck by the water. The tray itself ispreferably made suflicien'tly short to allow of a generous space rearwardly of the same for the reception of larger utensils as pots and pans.

As agitating means I use a revolving drum (31) provided with a plurality of fans, preferably three. The drum is cylindrical in form and is slidably secured on the shaft (33) supported in the sides of the box. It is prevented from rotating on the shaft by the bolts extending diametrically through the shaft and the cylinder and secured by nuts (36). It will be noted that the fans do not extend from the drum at the same angles, one of them, (37), extending radially. the second one, (38), at a small angle to the radius, and the third one, (39), at a larger angle to the radius. This arrangement is selected for the purpose of insuring a more thorough distribution of the water over the dishes, it being well understood that each of these fans will throw the water in a different direction and cause the same to strike the dishes at a. different angle.

.The cylinder is partly submerged in water as shown in Figure 2 and its rear portion is surrounded by a shield (41), so that when the drum is rotated clockwise the fans will dip into the water and carry along a portion of the same between the drum and the shield. until after passing the upper end of the shield the water is released and free to each one of the quence of which it will be hurled at the dishes, rinse and clean the same, collect at the bottom, and due to the slope of the bottom return to the agitator to be a ain picked up by the fans. A special catch (42) is provided for the solid substances washed ofi the dishes, as tea or cofl'ee grounds or remain ders of food adheringto the plates. The catch is in direct communication with the outlet (43) of the Washing machine, which is provided at the bottom near the lower end of the box. A trap is provided in the outlet to prevent gases from rising through the same, a cap (46) of the usual form is provided, thus allowing the same to be drained. The outlet is controlled by a valve (47) which can be operated by means of the rod (48) from the top of the washing machine. A float (49) carrying a vertical rod (51) serves to indicate the level of the water in the washing machine. The water inlet is shown at (50).

The drum is rotated by means of the motor (9) secured on top of the washing machine, which engages through the belt (52) the Wheel (53) keyed to the shaft (33) supporting the drum. In the machine I am using now the cylinder makes about 500 revolutions per minute and I prefer to provide special tightening means for the belt, as shown in detail in Figure 3. This means comprises an idler wheel (60) mounted on the transverse end (56) of the long-itulinal shaft (57) so as to frictionally engage the outside of the belt (52). The shaft (57) is slidably mounted in a bracket (58) secured to the washing machine and caused by the spring (59) to draw the belt inwardly, thereby tightening the same. 7

In operation the dishes are assembled on the tray in the manner described, the cups suspended, the forks and knives placed on the .screen, the spoonholder placed in a convenient spot, the pots and pans assembled rearwardly of the tray, hot water poured into the box, soap or washing powder supplied, and the motor started. The fans then throw the water violently against the-dishes from different .directions and efiect a thorough cleaning of all the contents of the box, the: water returning over the bottom of the box so as not to-in any wa interfere with the water thrown by the ans and being agitated continuously. The solid substances washed from the dishes assemble in the catch (42) without further partaking of the agitation. water is drained ofi, and clean water admitted to rinse the dishes.

The motor can be easily removed at any time and used for other purposes.

I claim:

A dishwashing machine comprising a water holding'receptacle having a slanting bottom, means for securing dishes in the receptacle, a large drum adjacent one end of the receptacle having a plurality of straight fans emanating at different angles from its periphery for throwing the water from different directions into contact with the dishes, and a curved shield partially surrounding said drum for causing the water to be'discharged from the upper portion thereof, said shield providing adjacent its lower portion an extended lip .in spaced relation to the bottom of the receptacle to provide a trap for solid particles and a discharge outlet connected to said trap.

MELVILLE M. UTTERBACK.

When the dishes are clean the

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