US1630684A - Dishwashing machine - Google Patents

Description

'May 31, 1927.

l c. L'. vy/ooDwARm` DIsHwAsHING MACHINE Filed March 10'. 1922 ATTORNEY. v

Patented May 31, 1927.

UNITED STATES 1,630,684 PATENT OFFICE.

CHARLES L. WOODWARD, OF WEST SPRINGFIELD, MASSACHUSETTS, ASSIGNOR lTO UNITED STATES MACHINERY MANUFACTURING COMPANY, OF SPRINGFIELD, MASSACHUSETTS, A CORPORATION 0F MASSACHUSETTS. I

DISHWASI-IING MACHINE.

Application led March 10, 1922. Serial No. 542,674.

'.lhis invention relates to iniprovements in washing machines and particularly to machines iter-washing dishes iu which a suitable inclosing casing or tank is provided for containing the dishes as knives, forks, spoons, cups, saucers, and plates while being washed. The lower portion of the dish receiving casing is designed to receive the hot water, and suitable means are provided for driving or forcing the hot water upward into contact with both the inner and outer surfaces ot' the articles to be washed, means are provided for operating a suitable propeller or other device for causing the water to be thrown upw-ard, suitable means are also provided for preventing the water from collecting 1n the lower part of the receptacle so that the water is not churned around by the propeller without being thrown upward.

An object oi the invention is to provide means for rotating the propeller by means of a water or other suitable motor which is located below the base or floor part of the dish receiving casing of the machine.

A further object is to provide a cover the shape of which is such that the water is readily deflected downward from the under side thereof and into contact with the outer surface of the articles being washed.

Further objects and nature oi the invention will appear in the body of the specification and be particularly pointed out in the claims.

Referring to the drawings Fig. 1 is a vertical sectional view through the anis ot the propeller shattaud enclosing casing showing the interior construction thereof. the rack for supporting the dishes. the water deflector plates and the interior construction of the water motor.

Fig. 2 is a view showing the machine connected to the cold water `l'aueet for operating the motor, and i Fig. 3 is a plan view substantially on the line 3&8 ot Fig. l showing the. concentric arrangement o1 the wires for supporting dili'erent articles as plates, tlnnblers, cups, etc.` also the `ipper edgesiof the (lcilector plates which supports the dish receiving rack.

Referring to the drawings in detail:

1 designates the inclosing dish receiving easing or tank, which may be 'ormed of any suitable sheet metal as copper. This casing is provided with a removable cover 2 having the inwardly extending flange 8 which engages the bead el. 5 designates the top plate or casting of the motor inelosing casing on which the bottom plate or portion G of the casing' 1 rests. The plate 5 is formed with an integral upwardly extending tubular portion 7 in which is located the vertically arranged shatt 8 of the water motor, the buckets ot' the wheel of which are indicated at 9. These are of the well known Pelton water wheel type. These buckets are connected to the hub l() which in turn is pinned to the shaft 8, as indicated at 11. 12 indicates the lower portion of the enclosing casing of the water motor and is formed with an upwardly extending member 13 t which receives the lower end of the shaft 8.4

The outlet or discharging portion ofthe casing is indicated at 14. The upper end of the shaft 8 is provided with a suitable propeller blade 15 which is for the purpose of scooping and throwing the water upward as will be described. It is pinned to the shaft 8 as indicated at 16.

It is to he understood that only one propeller blade is to be used and is of such shape or forni that the water is scooped up and thrown forcibly upwardly as indicated by the arrows 17 when the. propeller is rotated. The proper water'level in the casing 1 is indicated at 18. For the purpose of preventing the water `trom being churned around in a circle without being properly thrown upward a suitable number of deflector plates 19 are employed as shown. These plates are substantially right-angle triangles in forni and are secured to the outer and lower edges ot the casing 1. edges Q0 are designed for supporting the wire rack 21 which receives the dishes. This rack may be readily removed from the casing 1 when the cover 2 is removed permitting ready access to the interior. Located in the center part ol' the rack 21 is a woven wire fabric QQ that is rolled into a cylindrical shape for receiving the knives, forks, and spoons as indicated at 23.

Referent-e to the arrows will indicate the direction ot the water as it is thrown upward at 17, and deflected downward as indicated at Q4, whereby the inner and outer surtaees of the cups 25 and the tumblers 26 will be thoroughly washed also the inner and The upper.

outer surfaces of the plates which are indicated at 27. The arrows also show that the water is thrown upward into contact with the knives, forks and spoons inthe wire receptacle 22. For the purpose of operating the motor a hose 28 isy attached to the cold water faucet 20.

It is of course obvious that any other suitable motor may be utilized for operating the propeller blade 15 as an electric, or steam motor.

It will be seen from this description that I have provided a simple and economical dish washing machine and one that can be readily taken apart and repaired and thoroughly cleaned. The conical or inclined shaped surface of the cover 2 serves to cause the water which is thrown upward to be deflected or thrown downward again. The single propeller blade 15 is driven by the water motor which is, as shown, attached to the shaft 8 between the bearing portions 7 and 13 of the enclosing water motor casing.

The concentric wires 30 serve to receive the edges of the plates 17.

It is to be understood that the propeller blade 15 is at all times only partiall submerged as shown, which has the e ect ofy scooping the water and throwing it forcibly upward as shown by the arrows 17. This is an important feature.

lVhat I claim is:

1. In a dish washing machine the combination of a cylindrical casing, a pro eller therein, a plurality of trapeziform de ector plates having the base portions thereof attached to the bottom portion of the casing and having the top portions thereof forming supporting surfaces parallel to the bottom of the'casing, a framework for holding dishes having a portion of its flat bottom surface resting directly upon said supportin surfaces of said deflectors, the inner si es of said defiectors extending downwardly and inwardly towards the centre of the bottom portion of the casing and delining with the bottom surface of said framework a clear space of inverted cone shape in which` said propeller is disposed, said propeller comprising a single shallow blade spaced from the bottom of said easing and rotating in a plane parallel to the bottom surface of said framework and lin close proximity to said framework, a cone shaped cover for said easing acting as a deliector for the water thrown upwardly by said blade and means for operating said propeller.

2. In a dish washing machine the combination of a cylindrical easing, a propeller therein, a plurality of trapeziform deflector plates having the base portions thereof attached to the bottom portion of the casing and having the top portions thereof forming supporting surfaces parallel to the bottom of the casing, a framework for holding dishes having a portion of its flat bottom surface resting d1rectly upon said supporting surfaces of said defleetors and the inner` sides of said deflectors extending downwardly and inwardly towards the centre of the bottom portion of the casing and defining with the bottom surface of said framework arclear space of inverted cone shape in which said propeller is disposed.

CHARLES L. WOODWARD.

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