US519091A - Dish-cleaner - Google Patents

Description

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No. 519,091] Patented May 1,1894.

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F. NOBLE. DISH CLEANER No. 519,091. Patented May 1, 1894.

Witnesses: Inventor.

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F. NOBLE T DISH CLEANER.

No. 519,091. Y Patented May 1, 1894.

m ltnessesz I Inventor M Franiclin M626,

UNITED STATES PATENT OFFIC FRANKLIN NOBLE, OF JERSEY CITY, NEW JERSEY.

DISH-CLEANER.

SPECIFICATION forming part of Letters Patent No. 519,091, dated May 1, 1894. Application filed February 14, 1894. Serial No. 500,156- (No model.)

-.To aZZ whom it may concern}- Be it known that I, FRANKLIN NOBLE, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Dish-Washing Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use the same.

Figure 1, is a perspective view of a series of tanks and complementary mechanisms forming a dish washing machine embodying my I 5 invention. Fig. 2, is a horizontal sectional view on the line x-a: of Fig.1. Fig. 3, illustrates a tank with a swiveled crane and mechanism for suspending'and transporting the dish holding basket. Fig. 4, illustrates a perspective view of a cage in which the dish holding basket is adapted to be suspended and guided in its movements; Fig. 5, is an enlarged detail showing a means for taking up the slack of the chain or connection which 2 5 suspends the basket. 7

My invention relates to dish washing machines generally, and more particularly to that class employed in large establishments, like hotels, restaurants and like places, Where large numbers of dishes of a miscellaneous character are to be washed in a short period of time.

The essential object of my invention is to obtain greater efiiciency with machines and 3 5 apparatus of the class designated by means of a simplified construction for imparting the necessary vertical motion to the dish holding basket or receptacle, simultaneously with the operation of an agitator or device for produc-' ing currents within the body of water in the tank or vessel; the combined action of the vertically reciprocating dish holding basket and the agitator securing the greatest efficiency in cleansing the dishes. q

My invention consists, essentially, in suspending the dish holding basket directly from one end of a connection whose opposite end or portion is connected with means whereby the suspended and submerged basket is caused to rise andfall Within its tank.

My invention also consists in one or more suitable upright crane-arm mechanisms provided with guide pulleys for a chain, rope or connection which suspends the basket, and in connecting the said chain, rope or connection with a suitable power device for imparting a reciprocating movement to the basket while it is suspended fromthe chain or connection and while submerged in the water tank. I

My invention also consists in mounting a crane-arm so that it may be turned about a vertical axis whereby the basket may be swung sidewise after it has been removed from its tank to facilitateits detachmentfrom the suspending devices and permit its being placed upon an adjoining table or support and in providing said crane-arm with a traveling carrier having a supplemental suspending chain, rope or connection whereby the dish holding basket may be transported along the horizontal arm of the crane to enable it to be submerged in an adjoining tank.

My invention further consists of the parts and constructions and combinations of parts which I shall hereinafter fully describe and claim.

In the accompanying drawings I have illustrated my invention applied to a single tank machine of two compartments, and also to a machine employing a series of tanks placed side by side.

In Figs. 1 and 2, the water tanks are placed in series, and each tank A A and A 'is constructed of suitable material and dimensions, provided withfan open top plate B adapted to slightly overhang the inner walls of the tank, and prevented from lateral displacement by any well known or suitable means, such, for instance, as lugsa adapted to engage the outer walls of the tank.

At a suitable distance above the bottomof the tank and supported upon ledges or brackets b is a foraminous false bottom 0, and in the space between this false bottom and the 9 5 bottom proper of the tank, is mounted a horizontally disposed propeller or agitator D of any well known type, and adapted tocreate currents in the body of the water to assist in the thorough cleansing of the dishes. too

The tank Ais preferablya double one, with no intermediate or separating partition, and

is designed, as also tank A, to contain hot water and such saponaceous compound as I may desire to use to facilitate the cleansing of the dishes, while the tank A may properly be termed the rinsing tank, and is independent of the tank A and separated from it by a partition 0.

The propeller or agitator for the tank A will be large enough to occupy the major portion of the space in this combined tank be low the false bottom, while each of the other tanks will have its own propeller or agitator E, E as shown, the said propellers or agitators being upon the upper portions of suitable shafts F, F, F journaled in hearings in the central portions of the bottom of the tanks, with their lower ends suitably stepped or otherwise mounted so that the shafts may freely rotate when power is applied to them.

The shaft F for the propeller or agitator of the double tank, has secured to it at points below the bottom of the tank the sprocket wheels G, between which is another sprocket wheel G, and the shafts F F of the remaining tanks have also secured to them the sprocket wheels G G; while the means preferably employed for operating the shafts consists of the following: At one end of the machine, sprocket wheels H are suitably mounted upon a short vertical shaft I, one of said sprocket wheels being provided with a beveled gear J which meshes with and is driven by a beveled pinion K on a shaft L suitably mounted and provided with a band pulley M or other well known means to which power is transmitted from a power shaft R to be hereinafter mentioned. From the sprocket wheels H, chains N pass to and around the sprocket wheels G on the shaft F and from the other or intermediate sprocket wheel G on said shaft, a chain 0 passes over the sprocket wheel on the shaft F, and over and around the sprocket wheel on the shaft F whereby the several propellers or agitators are rotated in the direction shown by the arrows in Fig. 2.

Each of the tanks before alluded to is provided with a cage P composed of end bands 2 and connecting rods, wires or bars 3, and are let into the tanks so that they may be supported upon the false bottom or guard O the upper ends of said cages being covered by the cap plates before mentioned, the said cages serving to guide the dish holding baskets in their vertical reciprocating movements and the false bottom serving as a guard to prevent the basket contacting with the propellers thereby reducing to a minimum the liability of breaking the dishes during the washing process.

Suitably journaled upon the machine, or upon a support contiguous thereto, is a shaft R provided with cranks e and upon the base or foundation frame of the machine, or located at some other point if preferred, is an engine S of any well known and appropriate type, whose piston rod is connected with the crank shaft whereby the latter is rotated.

The means for suspending and imparting the necessary and desired reciprocation to the dish holding basket comprise a crane arm T for each tank, this crane arm being suitably supported and comprising a vertical arm f and horizontal arm 9 with guide pulleys h at or near the upper portion for the chain, rope or other connection 1 whichis designed to suspend the basket during the reciprocating movements before mentioned. These cranes may be fixed in position with their upper horizontal arms overhanging the tanks as shown in Fig. 1, or they may be journaled so as to swing laterally, as shown in Fig. 3.

The cranes shown in the group of tanksin Fig. 1 except the large one shown near the center of the machine, are preferably, fixed and the chains, ropes or connectionsl pass over the guide pulleys h and have one end connected with the cranks of the shaft R, while the opposite or free end is provided with a hook at or some other well known device for readily permitting the attachment and detachment of the bail of the dish holding basket U.

The connection of the chain or rope with the crank shaft may be a direct one, but I prefer to interpose between the end of each of the chains, ropes or connections and each of the cranks, a mechanism for automatically taking up the slack of the chain or connection, and raising the suspending hook out of the way, especially when the basket has been removed from its suspension on the same. The mechanism shown for this purpose is a very simple and effective one, and consists of a rod or bar V, fitted to each crank and having its upper end pivotally connected with another rod or bar W, while a coiled or torsion spring X at the joint of the two bars or rods has one end connected with each of said bars or rods as shown in Fig. 5. The rod or bar V is pivotally connected at a point between its opposite ends to a link Y whose opposite end is also pivotally connected with the vertical arm of the crane, while to the IIO upper rod or bar W, the end of the chain,

rope or connection which suspends the basket is fastened. From the construction and arrangement of these parts it is evident that when the basket is suspended from the chain or connection the weight of the same will be exerted upon the rod or bar W and the latter will be caused to assume a position approximately parallel with the rod or bar V, the spring resisting this movement with a yielding pressure, and as soon as the weight has been removed by the removal of the basket, the spring retracts and immediately takes up any slack in the chain, and permits the parts to assume their normal positions, with the suspending hook out of the way so that it cannot accidentally catch and break any of the dishes in a basket to be subsequently operated upon.

When the basket is properly suspended from the chain or connection, as described, it is submerged in its tank and the desired vertical reciprocation is imparted to it by reason of the connection of the rod or bar V with the crank of the rotary driver or crank shaft R, which said shaft also furnishes the .means for driving the band pulley M by which the propellers or agitators are operated as previously mentioned.

In using a swinging crane, substantially the same devices are employed as when using the fixed crane, but in this instance the link'Y should be pivoted or hinged to the frame of the apparatus, or some other point, so as not to interfere with the swinging movement of the crane; and the horizontal arm of the crane will be extended a distance not less than the combined width of two tanks, and will be provided with a track 6 upon which a trolley or wheeled carrier 7 is adapted to travel; this trolley or carrier having a sheave or pulley 8 around which passes a chain, rope or connection similar to those before described, whereby the basket, upon being removed from its tank, may be removed from its suspending chain or connection and then attached to the chain or connection from the trolley or car-' rier and be transported to an adjoining tank or to some other point; or the crane may be swung around to enable its suspending devices to readily receive a loaded basket from a table, shelf orother support, and then moved back into position to deposit the basket for the cleansing process.

Secured to some convenient point on the machine is a casing B having a hinged cover or plate 0 and within this casingis mounted a brush TD the shaft of which is extended through one side of the casing and is connected with the crank shaft, or other suitable means whereby it may be rotated. This brush is designed to thoroughly cleanse deep dishes of matter which will sometimes adhere to them and which may not be entirely removed by agitation in the tanks.

The water is supplied to the tanks preferably by steam pipes in the manner common to this class of machines, provision being made for any overflow of water as usual.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. Inadish washing machinehavingawater tank and a dish holding basket, a support provided with guide pulleys, a flexible suspending medium adapted to pass over and to be guided by said pulleys, a device atone end of the suspending medium adapted to engage and suspend the dish holding basket from above, and a power device connected with the opposite end of the suspending medium for imparting a vertical motion to the suspended basket.

2. In a dish washing machine havinga water tank, a crane arm provided with guide pulleys, a chain or connection adapted to pass holding basket to suspend it within the tank,

a crank shaft for operating the opposite end of the chain or connection whereby a vertical reciprocating motion is imparted to said basket, and a take-up in the chain or connection for automatically taking up the slack of the same.

4. In a dish washing machine having awater tank, a crane arm adapted to overhang the same, a chain, rope or other connection suitably guided on ,said arm having oneend adapted to suspend a dish holding basket while submerged in its tank, a rotary shaft having a crank arm, a rod or bar connected therewith, a second rod or bar pivotally connected to the upper end of said first named rod or bar and having the opposite or free end of the chain or connection securedto it,

a spring at the joint of thetwo arms with its ends connected to said arms respectively, and a link pivotally connecting the first named rod or bar with the crane arm.

5. A dish washing machine comprising a series of tanks placed side by side and each provided with a foraminous false bottom and foraminous cage, a propeller or agitator for eachtank and means for operating the same, a crane arm overhanging each of said tanks, a flexible connection mounted on each of said arms having one end adapted to engage and suspend a dish holding basket and its opposite end adapted to be connected with mechanism for reciprocating said basket.

6. In a dish washing machine havinga water tank, a crane arm journaled contiguous to theframe of the machine and provided with means for suspending and reciprocating a dish holding basket, and a trolley or carrier mounted to travel upon the horizontal member of the arm and provided with means for suspending a dish holding basket while the latter is being transported from one point to another.

In testimony whereof I aftix my signaturein presence of two witnesses.

FRANKLIN NOBLE.

IIO

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