US695400A

US695400A - Dish-washing machine.

Info

Publication number: US695400A
Application number: US9083599A
Authority: US
Inventors: Clarence B Knott
Original assignee: Individual
Current assignee: Individual
Priority date: 1899-11-13
Filing date: 1899-11-13
Publication date: 1902-03-11
Anticipated expiration: 1919-03-11

Description

Y No. 695,400.` lPatentml Mar. ".1902:

- C. B. KNOTT.

' msu wAsHlNsMAcmNE. (Application led Nv. 13, *1899, Ranewed Jan. 22, 1902.)

5 Sheets-Sheet I.'

.W n HA 0I. A

(N0 Model.)

No. 095,400. Paienfed Mar. n, |902.

c. KN0TT. DISH WASHING MACHINE.

(Apglication ied Nov. 13, 1899. Renewed Ja. 22, 1902.) (No Model.) I 5 ShpS-Sheef 2.

TH: NoRms PETERslcO., PHUTOILITHQA, WASHINGTON, D, c,

y No.- 695,400. l Patented Mar. n, 902.

c. B. Know.

nlsH WASHING mamma.v

(Application tiled Nov. 18, 1899*. y Rcnewed Jgn. 22, 1902.) (No Model.) 5 Sheets-Sheet 3.

THE NuRms Ferias co., Mom-LITRO.. WASNINUTUN. u. c.

- 1 Patented Mar. |902.. C. B. KNOTT. DISHy WASHING MACHINE.

(Application filed Nov. 13, 1899. Renewed Jan. 22, 1902.)

LND Model.)

5 Sheets-Sheet 4.

TH: Nonms PUERS oo, PNoTo-Lnjno.. wASHmaYoN. n, a

No. 695,400. Patented Mar. 190i'.

C. B. KNUTT.

DISH WASHING MACHINE.

(Application led Nov. 13, 1899. Renewed Jan. 22, 1902.)

(Nu Model.) 5 Sheets-Shet 5.

' 1TH: Nonkls PErERS co.. PHOTO-LITHLL wAsNlNauN, D4 ci' Y [NVE/WOR y @MW/@M CLARENCE B. KNOTT,

or NEw YORK, N. Y.

DISH-WASHING IVI'AGHINE.

SPECIFICATION forming part of Letters atent No. 695,400, dated March 11, 1902. Application filed November 13, 1899. Reneweddanuary 22, 1902. Serial No. 90,835. (No model.)

To all whom. it may concer-n: Be it known that I, CLARENCE B. KNorr, a citizen of the United-Statesof America, re. siding in New York cityfin the county and State of New York, have'invent'ed a new and. useful Improvement in Dish-Washing Ma-v chines, of which the following is a specification.

My object is to provide a machine which while in continuous motion will indiscrimi-4 nately receive, grasp, and wash various sizes and kinds of eating utensils-such as knives, forks, spoons, plates, cups, saucers, pitchers, bowls, glasses, &c.much more rapidly and with comparatively little labor and liability to breakage and chipping them.

A further object of my invention is to make the machine selfcleaning,whereby the water in the washing-tank will not become foul as. quickly as in machines of this kind formerly used.

These purposes are accomplished through the medium of a pair of oppositely-disposed aprons or conveyers which contin uously move together with dishes between them through a washing compartment or tank, in centreetion with certain other peculiar features whereby dishes entered at one end of the ma-` chine are grasped, held apart from oney an other, and washed while in transit and then passed out at the other end of the machine, ali of which will be more fully described hereinafter and pointed out in the claims.

In the accompanying drawings, Figure l represents a side elevation of my complete invention; Fig. 2, atop view thereof; Fig. 3, a longitudinal vertical section of the machine; Fig. 4, an end view of the machine in which some parts of it are removed and others shown in section -to better illustrate the mechanism; Fig. 5, a top view of the agitator, a part of which is cut away to better show the apertures through which the ysuds or washing agent is forced to flow. Fig. 6 is a detail View showing the manner of attaching one of the brush-hangers; Fig. 7, a detail View of a portion of one of the dish-conveyers, and Fig. 8 is a view of a cushioning or catching device upon which any dishes that may escape the operator at the receiving end ion legs 3.

will fall. Fig. 9 is 'a detail View of the adjustablebearing. i g

The reference-numeral l represents a sudstank or washing-compartment supported in any suitablev frame, such as 2, and mounted This tank is adapted to hold the washing fluid, consisting, preferably, of hot water containing soap and soda. The dishes are carried down through the fluid by a pair of endless conveyers 4 and 5, placed one above the other in such a manner that the bottom of the upper conveyer lies upon the top of the lower conveyer, and. the two will travel slowly together through the tank with dishes between them. Both conveyers are composed of noncorrodable network, preferably brass, through the open meshes of which the washing Huid will pass to attack the dishes upon all sides. The edges of both Vconveyers are provided with sprocketchains 6, by which they are propelled and kept at the proper longitudinal tension. The chains areprevented from being drawn off the sprocket-wheels over which they pass by .transverse span-bars 15', which have their opposite ends attached to the links of the chain andare arched to allow for the spreading of the conveyers when the dishes are between them. The chains of the upper conveyer pass over four sprocket-

wheels

7, 8, 9,@and 10. The

upper wheels

7 and 8 are mounted in bearings supported on vertical adjustingescrews 7' and 8', whereby the wheels can be raised or lowered to tighten or loosen the conveyer. The lower sprocketwheels 9 and 10 are of larger diameter than the upper wheels, so that their lowermost portions will carry the conveyers down into the fluid inthe tank l and will also lie far enough IOO at the receiving end of the machine and a discharge portion 5 at the discharge end of the machine.

11, 12, 13, 14,15, 16, and 17 are the sprocketwheels over which the lower-conveyer chains pass. rlhe sprocket-wheel 16 is mounted in adjustable bearings 16', provided with oblong slots 16", through which the set-screws 16 pass.

The tank is heated by steam-pipes 50, 1ocated in the bottom thereof. These pipes are perforated to permit small jets of steam to escape into and heat the washing iiuid submerging them. The hot iiuid in the tank 1 may be projected against the dishes in various Ways; but I prefer to do it with an agitator suspended by hangers 18. The agitator will reciprocate below the lowermost portion of the aprons or conveyers. The hangers swing from the shafts 9 and 10', on which the large sprocket-wheels 9 and 10 are ixed. The means for actuating the agitator consist of a pitman 19, connected to a crank 2O on a shaft 21, which shaft is provided with a pinion 23, interposed between and meshing with the contiguous sides ofthe two large sprocketwheels 9 and 10. The agitator, as better shown in Fig.` 5, consists of a rectangular frame 24, open at the top and bottom and containing several vanes 21, each of which has a series of apertures 25, through which the washing solution in the tank flows, as indicated by arrows. Oheck-valves 26 on one side of the series of vanes coperate with one half of the series of apertures and a similar set of,check Valves 27 on the opposite side of the vanes cooperate with the other half of the series of apertures, so that when the agitator is moved in one direction one set of valves closes, while the other set opens, driving the iluid in a continuous direction and producing a cyclonic whirl, such as denoted by arrows, and projecting the iuid against the slowly-passing dishes while they are held in their isolated positions between the network of the conveyors.

At the front or receiving end of the machine are located two large revoluble feed-` brushes 28 and 29, which serve to receive the dishes from the hand ot' the operator and direct them independently of one another down upon the conveyer below. The brush 29 bears against both conveyers and scrubs them. This scrubbing action of the brushes will prevent the formation on the conveyers of a film which would leave a mark on the dishes, an objection common to the wire brackets used to immerse dishes in tanks. These brushes also serve to give the dishes a preliminary scrubbing before they enter the tank. One of the feed-brushes 28 isjournaled in fixed

bearings

28 and 28, and the other,

29, is journaled in the free ends of oscillating

arms

29 and 29", the latter being pivoted at 29" to move toward and from the stationary brush 28, a coil-spring 29 holding it normally against the latter, whereby the brushes will accommodate themselves to various sizes of dishes. The fixed brush operates upon the top of the lower apron or conveyer and brushes off the adhering particles of.' food which it brings up from the tank. The stationary brush is revolved by a short belt 30, passing around pulley 30 on the shaft of the sprocket-wheel 14C, together with a pulley 30" on the shaft of the brush 28. The bristles of both brushes mesh, and hence motion is communicated from one to the other. A sprinkler 3l overhangs the brushes and projects hot water on the dishes before they are entered 'between the brushes and also Washes the latter. Sprinklers 32 and are disposed, respectively, above and below the conveyors at the discharge end ofthe machine and over a tank 34 for the purpose of rinsing the dishes after they have passed through the suds-tank. These rinsing-sprinklers may be connected with a pump 32', which draws the water from the tank 34E, into which much of it falls after having rinsed the dishes.

3l' and 31 are the supply-pipes for furnishing hot water to the sprinklers. It is also obvious that pipe 34E may be connected with any hot-water supply and the pump dispensed with, in which event the tank 34; could be drained, as occasion might require it, by opening cock 34, The action of the sprinklers is controlled by a horizontal rod 35, which extends along the side of the frame of the machine and is provided with operating-knobs 35 at its opposite ends. The rod is provided at the middle with a worm SG, which meshes with a pinion 36 on the stem of a three-way cock 36 at the junction of the

pipes

34 and 34", whereby an operator stationed at either end can control the sprin klers by merely turning the knobs.

A cushioning device 401s disposed underneath the discharge end of the lower conveyor to receive those dishes which might escape the operator. This device consists of a standard 40', on which is mounted a revolving horizontal table 41, covered with vertical bristles 42. Dishes falling on the table can be quickly moved out of the way of succeeding dishes by revolving the table.

The Whole machine is actuated by a pulley 22 on the shaft 11, which carries the sprocket wheels 11.

The operation of the machine is as follows: Having rst supplied the tank. with Water containing the proper amount of soap and soda and heated the Water by the jets of steam and having started the machine, thc

agitator will soon churn up the solution to the required degree. The sprinklers being now turned on, the dishes should be passed under them to give them a preliminary flushing and thence between the

brushes

28 and 29. From the brushes the dishes fall upon the projecting portion of the lower conveyor and are carried forward beneath the upper conveyor, which engages their upper portions ICO IIO

` lows thewashing luidfull play `upon the and holds them separately and firmly between the two conveyers. They are then carried slowly down and immersed in the iiuid of the tank. This fluid is in a high state of ebullition and dashes against the dishes fromall sides. The agitator is timed to make about six or seven reciprocations, and thus project the suds an equal number of times against each dish while it passes through the tank.I

The network of the reticulated conveyers aldishes and exposes them fully to the action of the fluid. The dishes then pass upward and outward and are then rinsed upon both sides as they pass between the

sprinklers

32 and 33. The water coming from the

sprinklers

32 and 33 is made very hot by a heater 51, located in. the tank 33 below, and may be used over and over again by meansof a pump 32 of any suitable design. The conveyer will catch and carry out of the tank the loose particles of food liberated from the dishes. Therefore it will be seen that the washing iluid in the tank is automatically kept clean. In the event of a dish passing through the machine without being thoroughly cleaned it can be placed upon the top'fold of the upper con- -veyer and returned to the starting-point to pass through the machine again.

I believe myself to be the first to provide a dish-washing machine which While in continuous motion is capable of indiscriminately receiving and grasping without preadjustment various sizes and kinds of dishes kand eating utensils and of securely holding them immovably'apart from one another, so that theycannot clash. and become nicked or broken while being carried through the machine.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-V 1. In a dish-washing machine, a tank or washing-compartment, in combination with two reticulated coactingdish-conveyers which travel together in and out of the compartment,

vwith dishes between them, and means whereby the conveyers automatically adapt themselves-to various sizes of dishes, su bstantially as described.

2. In a dish-washing machine,.a tank or washing-chamber in combination with a pair of reticulated conveyers arranged to travell together through the tank with dishes between them,and means for regulating the tension of the conveyers and hence their rela- .tion to each other.

3. In a dish-washing machine, a tank or washing-chamber and two reticulated dishconveyers adapted to travel together through the tank, in combination `with agitating and rinsing-devices, substantially as described.

4. In a dish-washing machine, two oppositely disposed dish conveyers adapted to grasp dishes of vario ussizes between them and provided with means for regulating their tension in relation to each other, in combination with a washing-compartment through which the dishes pass, and means for projecting the contents of the tank against the dishes'as'they pass through the compartment, substantially as described. f

5. In al dish-washing machine, a tank or washing-chamber, in combination with two endless reticulated conveyers movable to- 8.` In a dish-washing machine, a suds-tank provided with a pair of adjustable reticulated l conveyers traveling through the fluid in the tank and adapted to hold dishes between them, in combination with rinsing devices, substantially as described. i

9. In a dish-washing machine, a suds-tank provided with a pair of adjustable reticulated conveyers traveling through the fluid in the tank and adapted to hold dishes between them in combination with rinsing devices and an agitator, substantially as described.

10. In a dish-washing machine,a suds-tank, in combination with an endless conveyer composed of network and provided with vbowed spread bars, which are attached to and span from edge to edge of the conveyer, substantially as described. e

11. In a dish-washing machine,a ends-tank,-

IOO

in combination with an endless conveyer cornposed of network and provided with arched spread-bars, substantiallyas described. Y

12. In a dish-washing machine, a tank, Ain combination with a pair of endless conveyers,

an agitator, brushes and devices for washing the brushes.

13. In a dish-washing machine, a tank, in I combination with a pair of endless conveyers, an agitator,automatically-adj ustable brushes and devices for washing the brushes.

14. In dish-washing machine, a watertank, in combination with endless conveyers submerged in said tank and means for keeping said conveyers clean.

15. `Ina dish-washing machine, a watertank, in combination with endless conveyers submerged in said tank and revolving brushes operating on the conveyers.

16. 'In a dish-washing machine, the combination of a pair of endless conveyers composed of network traveling together through a tank, sprocket-chains to which the network into and out of the chamber, and means for is attached and sprocket-Wheels over which automatically removing foreign matter from the chains pass, and an agitator. the water, substantially as described.

17. In a dish-Washing machine, a Washing- CLARENCE B. KNOTT. chamber and means for agitating the Watel1 In presence oftherein, of means .for automatically engaging i ROBERT P. KETTLE, dishes of various sizes and conveying them T. M. WALKER.