US 2358507 A
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Description (OCR text may contain errors)
Sept-'19, 1944- A H. HABERsTuMP 2,353,507
` UTBNSIL WASHING MAQHINE Y Filed llay 2. 1938 5 Sheets-Sheet 1 lNv'EN-ron Y ALFRED H. HABERSTU/AP Sept. 19, 1944. A H. HABl-:RsruMP uTBnsIL WASHING ummm Filed lay 2, 1938 5 Sheets-Sheet 2 Sep*- 19, 1944. A. H.' HABERsTuMP 2,358,507
UTENSIL wAsgING mams Filed lay 2, 41938 5 Sheets-Sheet 3 "J mvENToR ALrRaD- H. ABERSTu/AP sept. 19, 1944.
A. H. HABERSTUMP UTENSIL wAsHlNG MACHINE Filed may 2, 1958 5 Sheets-Sheet 4 INVENTOR ALFRED H." HABERSTU/AP Mk1/L MY u y A H. HABRS'TUMP .2,358,507
UTENSIL WASHING MAGHINE #sept-119, 1944.
Filed May 2. 1938 5 sheets-sheet 5 mvENToR ALFRED H. means-wmp Patented Sept.- A19, 1944 UNITI-:D i STATES PATENT OFFICE esserci y I l llmr Application May 2. 193s, serial N. 205,433
A11 claims (c1. 141-9) This invention relates to washing machines. One of the objects of the invention is the provision of a washing machine which is compact in its arrangement,`simple in construction, is eiilcient in operation, and is capable oi operating continuously, Athereby making it especially suit- Flg. 4 is across sectlonalplan view taken on line l-I of Fig. l.
Flg.r5 is a cross sectional view taken on line 5 5 of Figs. 3 and 4.
able for household uses and is readily adaptable to industrial or commercial uses.
Another object of the invention is the provision of a washing machine which washes, rinses and dries articles placed therein and delivers them to a convenient point for unloading.
Another object of the invention is the provi- Fig. 6 is a perspective view of the article con-4 tainer or retainer showing connecting link chain between the container or retainer and chain.
Fig. 7 is across sectional view taken on line l-l' of Fig. 1.
Fig. 8 is `a cross sectional view taken thru l-8 0f Fig. 3.
sion of a washing machine in which the articles are fully accessible to the washing', rinsing and drying means, and' are subjected tothe direct spray oi the wash and rinse liquids, eliminating the necessary stacking of the articles as employed lids which, when closed, form a work surface while the machine is either running oridle.
Another object of the invention is the provisionof a washing, rinsing and drying machine which is continuous in operation and in which the article containers are halted and travel at a slower rate of speed thru the loading and unload- Referring tothe drawings, which illustrates preferred embodiment of the invention:
Fig. l is a cross sectional iront view of the .invention taken on line I-I of Fig. 2 with the portion 82 of the panel 38 removed.
Fig. 2 is a cross sectional side view taken on Fig. 3 is a partial cross sectional'fro'nt view control of iloat valve and drai valve and position ot drying fan. l
Fig. 9 is a partial cross lsectional view taken I on line 9 9 of Fig. l of pump.
'I'he drawings illustrate a washing machine which is adapted to receive articles to be washed, rinsed and dried and is provided with means for conveyance of the articles thru the wash, rinse and drying zones in continuous operation for an indefinite period of time.
vThe articles to be washed may be loaded thru the opening provided and unloaded thru the same opening after passing thru the washing, rinsingv and drying zones. Ii.' they are not thoroughly cleansedk after'passing thru one cyclec they may be left to complete a second cycle. It ls possible to cleanse large quantities of articles because of the flexible nature of the Invention.
Inner tank As shown, the wasiung machine consists of an inner tank I0 and an outer cabinet orcover panel II which rest upon a `rectangular base structure I2. 'l'he inner tank commises two end panels taken with parts removed to show operation and I2 and Il and two side panels l5 andl which are secured together at their edges to form a water tight tank.l The bottom I1 of the inner tank is secured to the four lower edges of the end panels I3 and Maud the side panels' I5 and I6 in such manner as to provide water ,tight ioints. The bottom panel I1 is formed upward at I8 and .Il and then angularly upward and joined at the 'center 2U.
' The bottom panel IT is provided with otlsets at 2| and 22 so that it will rest squarely upon the anges and 2l oi' the outer cabinet Il and the flanges 25 and 2i of the base I2. The vertical surfaces Il and Iland the top surface 2l of the ,bottom panel I'I forma partition between the washing liquid 'tank 21 and .the rinsing liquid tank 2l and also provide space in which is mounted the motor 29 and pumps 8|.
The top edge or the inner tank Il is ilanged inwardly at II and upwardly at l2 vto provide for a sealing element $3. The inward ilange 3| andv upwardange 32 and the sealing element 33 contank tinue completely around the top of the inner A baille 288 extends from front to back and is supported'by rivets 28| on the panels I8 and I8. Slots in the downwardly turned flanges provide easy means for removing the baille for access' when` cleaning. This baille serves to prevent liquids from being sprayed thru the loading space.
Outer cabinet flanges 28 and 28 of the base I2. The side panels 88 and 81 are likewise formed at right angles providing flanges 88 and 88 which rest upon the flanges 48 and 4| of the base |2. The top edges of the end panels '84 and 88 are formed inwardly at 42 and 48 thence upwardly at 44 and 48 and then horizontally inward, forming a portion of the top of the cabinet 48 and 41. The surfaces 48 and 41 of the outer cabinet II are formed vertically downward providing flanges 48 and 48 to which the hinges 88 and 8| are secured.
The side panels 88 and 81 are formed'horizontaliy inward at 88 and 8| and then downward at 82 and 88. The surfaces 82 and 88 are formed outwardly at 84 and 88 and extend completely lacross the front and back sides of the cabinet as shown in Fig. l. These flanges 84 and 88 serve as a guiding means for the article container brackets 88 and prevent any swinging motion oi'- containers 81 when the articles are being loaded into or unloaded from the said containers.
The doors 82 and 88 are secured to the hinges 88 and 8| thru the flanges 84 and 88 by riveting or welding or any suitable means and complete the work surface or top of the outer cabinet. when in closed position. as indicated by the solid lines. The doors 82 and 88 are also ilanged vertically downward at 88 and 81 to give strength and appearance to the construction. When loading or unloading the articles, the doors 82 and 88 are thr'own open as shown by the dotted line positions 88 and 88. 'I'he 'doors in this position serve as a resting place for the articles accumuiat-ed when loading and unloading` The ton portions 48 and 41 of the end panels 84 and 88 are formed downwardly `at 88, overlapping the vertical flange 88 of the side panels 88 and 81. as shown ln Fig. 8. The front panel 88 and back panel 81 are providedwith openings nr louvres 84 and 88 thru which air is circulated for drying the articles as they pass by. carried hv the article containers. Any suitable insulatoi the cabinet. The two chains 18 and 18 are precisely the same length and the links 18 are secured to the chain by the rivets 11 at predetermined distances and opposiiely disposed, providing the proper spacing for efficient operation and utilization of the space.
The chains are retained by the sprockets 8|, 82 and 88 which are in pairs and oppositely disposed on the front and rear-sides of the cabinet. The sprockets 8| and 88 are arranged in a zigzag position across the top, causing the chains 18 and 18 to follow a zigzag path while the 4containers follow a substantially horizontal path s defined and supported by the guides 14 and 18.
The links 18 continually drive the containers but due to the divided paths the containers move at a varying rate of speed across the top and are entirely interrupted at some points thereof. The sprockets 8| are mounted on studs 81 and the sprockets 88 are mounted on studs 88 which are rigidly secured to the front panel I8 and the rear panel I8 of the inner tank |8in such a manner as to permit freeA rotation when the chain is motivated by the driver sprockets 82. The driver sprockets 82 are secured to the inner ends of the shafts 88 by set screws. The shafts 88 extend thru-suitable bearings which are secured to the inner panels I8 and |8. The sprockets 88 are secured to the ends of the. shafts 88 by means of set screws and lie between the outer panels 88 and 81 and the inner panels I8 and I8." Two drive chains 82 connect the sprockets 88 to the sprockets` 88 which are secured to thel f path defined by the channels on .the sides and ing material '88 is secured tothe vinner surfaces I of the outer cabinet panels 84, 88. 88 and 81 by means of cement and serves to prevent escape of heat and noise. The front panel 88 is provided Conoeyer system .The article convever systelnis comprised of a multiplicity of wire containers or baskets 81 suspended by'means of brackets 88 at each side which are'carried by rollers 18 and pins 1|.` The bottom and the top guides 14 and 18 at the top. The countershaft 84, Fig. 4, is driven by the gears 88, 88, 81, 88, 88 and |88. The gear 88 is secured to the shaft 84 with a set screw ||l|l and meshes with the gear 88. Gears 88 and 81 are rigidly secured together and are free to rotate are assembled to the one end and the pump 88 rollers travel in the U shaped channel elements to the other end.
Tire conveyer chains pass over a pair of lower sprockets 88 and over the tops of a pair of upper sprockets 88 for producing an interrupted movement of the containers. As the links, pivoted to the chains and containers, move along the straight line from the lower to the upper sprockets 88 the forward movement of the containers is interrupted and the containers will move backwardly a slight amount as 'the link continueslts upward movement over the upper sprockets 88. The containers in. this. manner are retained in substantially stationary position for a period of time near the .opening provided in the top of the cabinet. It will Y be further noted that the containers are retained channel elements 12 and 18 at the front and rear 18 in vertical position at all times as they are moved zles and across the loading and unloading opening in the top of the cabinet.
It is to be understood that the word container,"
wherever used, is to mean any device or means suitable for holding the articles to be washed.
Transmission. and pump The motor 29 is preferably mounted on a suitable support |04 which rests on the intumed flanges 39 and 39 of the side panels. The motor may be any suitable means for supplying power, but preferably the ordinary electrical motor will be considered as the above means described. The motor is provided with a base and is secured to the support |04 with bolts |05. Wires |90 and |9| are provided andadapted to connect to suitable electrical sockets and controlled by a switch |92 located on the front oftohe cabinet.
The pump assembly 30 is of dual construction and consists of three castings forming the housing, and two impellers which are secured on the extended motor shaft by means of set screws.A The inner housing |01 is recessed to receive the impeller |08 and isprovided with an inlet |89 and therein toprovide ingress of the solution from the tank to the pump. The outlet is connected to the tube ill which conveys the liquid to the spraysystem. The housing is further provided with a recess at the end toward the motor. This recess is concentric vwith and encompasses .the
shaft; providing suitable space for a sealing element H2. The sealing element is pressed into close relation to the motor shaft by the nut ||3 and may be adjusted to prevent leakage of' the pump liquid around the shaft. 'I'he center partition ||4 of. the pump forms the outer wall of the wash liquid pump and the inner wall of the rinse liquid pump. The outer housing I I5 in combination with thelcenter portion ||4 forms the complete housing for the rinse liquid pump. Suitable gaskets i8 are placed betweenthe outer and inner housings andthe center portion of the pump to insure against leakage of the pump housing. The f outer housing ||5 is provided with an inlet ||1 andan outlet i8. The inlet is securedto the rinse solution `tank 28 and is mated with an aperture the tank to the pump. The outlet ||8 is con-4 nected to a tube ||9 which conveys the liquid to the spray system. The inner housing is further -therein to provide ingress of the solution from provided with a support base |20 which is se- K cured to the support |04 by any suitable means. but preferably bolts |2|. Although a preferred design of pump is herein described, it is to `be understood that any suitable dual pump or combination of separate pumps may be used.
Spray system The spray system consists of two. series ofpipes and spray nozzles, one furnishing wash solution from the tank 21 andthe other furnishing a rinse liquid from the rinse tank 28. The tube conveying the wash'solution extends horizontallyl at nected to -the tube and extends Aangularly across the back and thence horizontally forward at |29 and |30.- Spraynozzles |21 are connected 75 3 at predetermined distances to the tubes |29 and |30 and directed to spray at diagonally opposed` angles and causing wash solution to be sprayed at the under side of the articles as they pass in the conveyer containers.
Tube H9, Fig. 4, which conveys the rinse liquid is likewise extended horizontally toward the rear, thense upwardly at |3|, horizontally across the back at |32, thence horizontally forward at |33 with extending nozzles |94 directed angularly downward. A pipe |34, Fig. l, is connectedto the pipe I9 and extends horizontally to the left at the back, thence horizontally forward at |35 and also is provided with nozzles |94 directed angularly upu ward. The tubes '|35 and |33 and connecting tubes and nozzles constitute .the rinse spray system supplying av rinse spray from the tank 28 thru means of the rinseside of the pump 30.
It will be noted that the liquid, from both the wash and rinse nozzles will be sprayed against the utensils and fall upon the drain panelv |40,
and directed thru the openings |4| and |42. then vthru the filters and drain screens |43 and |44 and flanges are slotted to enable the removal by merelylifting the drain panel upward.
Drainy screen l The drain screens |43 andl |44 are secured to the bottom of rectangular flanged, drawer shaped containers |45 and |46- Filters|41 and' |43 are placed upon the screen in the bottom of the drain 'screen assembly and serve as a sanitary and desirable means of disposing of refuse filtered from the wash and rinse liquid. When the utensils have been'washed,v rinsed and dried, the illtersl are taken from the drain screens and disposed of `and replaced by new ones. Paper filters which are inexpensive are preferred, but it is to be understood that fabric or other materials may be used without departing from the scope of the inventio'n. If fabric or other suitable flltars are used they@ can be removed, cleansed and replaced. The
drain screen assemblies are removed thru the openings '|36 and |31 of the front panel 35 for cleaning. Suitable handles '|49 and |50 are secured to the front of the drain screen retainers for the purpose of removal. Guides |5| and |52 are secured to the drain panel |40 for supporting thel drain screen assemblies.
, Lqmdepntmz' l y The inlet valve |53 is secured to the back wall I5 of the inner tank I0 thru an aperture |54-.and`
is held in place by means of a nut |55.` Avgasket |56 servesto-prevent leakage around the aperture |54. A pipe'i51, preferably connected to the hot water system, is fitted into the valve at |58 and supplies water to the tank 28. It is apparent that when the tank is empty the float- |59 will drop and open Ithe orifice i and permitwater to enter the tank due to the pressure of the water system.
A stud |5| is secured to the top` of the oat and extends thru an aperture in the control rod |52. `A collar |63 is secured to the topoi' the vstud |8| at .spaced relationship to the float, permitting a predetermined movement of the float relative to the control rod |32V A lever: |54 is rigidly secured to the float stud |8| .and pivotally 'ccnnected to a lug |85 of the valve |53 by means of a pin I, A screw |51 is threaded into a projecting lug |88 of the lever |84 and engages the valve stem |88. I'he valve stem is provided with a sealing element |1l which prevents passage of the liquid when the iloat is in raised position as shown in Fig. 5. A spring |1| is positioned to urge the valve stem to open position when the iloat drops below the water level line.
Referring to Fig. 3 an arm |12 is connected to the control rod |82 by insertion thru a hole in the' end of said arm and is held in position by pins |13. The `other end of the arm is pivotally secured to the wall of the inner tank by means of a rivet |14. Intermediate oi the ends of the arm, the drain valve stem |18 is pivotally connected by means of the pin |16. A sealing means |11 is rigidly connected to the lower end of the valve stem and is positioned to seat in a correspondingly shaped aperture, to prevent egress of the liquid thru the drain valve when the sealing means |11 is in its lowered position as shown in Fig. 3. The sealing means |11 is acted upon by the spring |18 tending to i'orce said sealing means to closed position. The valve housing |19 is constructed with an inlet |88 which is connected to the wash tank by means of a pipe |8| and a second inlet |82 which v is connectedto the rinse tank by means of a pipe |88. The opening |88 is provided and is preferably connected to any convenient drain system 'and carries the liquid from both ythe wash and rinse tanks to said drain system. A heating element |88 is provided to increase or maintain temperature of the rinse liquid. The control rod |82 is extended upward along the inner wall of the tank and is connected to a control handle |88 by means oi' an arm |85 and stud v|88 which extend thru to the outside of the cabinet. A tube |81 extends thru the vertical walls i8 and I8 of 'the inner tank. -A valve |88 of the type which permits the liquid to' flow only in one direction-namely, from the rinse to the wash tanks is connected to i the end of the tube |81 at the wash liquid side.
Drying system a mi m. ma, 2 ands, a widened directly behind the louvres 84 oi' the front panel and is driven by means of an electric motor or any other suitable means and serves to circulate relatively dry air from'outside the cabinet thru the iouvres 84 and across the articles as they pass in the containers. thereby removing the droplets of liquid andcausing the articles to be dried. Louvres 8l are provided in the back panel directly opposite tothe louvres 88 and provide means i'or the air to A heating coil ill may be placed be- `tween theI ian and the articles to be dried, causing ill- Aia shifted from the position as shown in dotted lines Fig. 3 to position as shown by solid ,lines (|84) which causes the control rod |82 to drop. The float |88 is thereby released allowing the liquid to enter the valve illwhich is thereby u opened. The liquid iiows thru the port |68 and the' valve outlet ,|83 into the rinse tank 28. The release of the control rod |82a,lso operates the arm |12 and the valve |18 to close the drain openings in both the wash and rinse tanks. When the liquid has risen to the level of the tube |81 it flows thru said tubeuntil the wash tank 21 is illled and the liquid in the rinse tank rises to a point slightly 75 supporting means, means for guiding the conhigher, raising the iloat and closing the inlet valve. The control switch |82- is then turned on causing the conveyers 18 and 18 and the containers 61 to travel the predetermined path within the cabinet and the pumps to circulate the liquid fromboth tanks thru the spray system. The articles to be washed are placed in the two containers at the top oi' the machine, Fig, 1, and in each successive container as it passes the opening at the top of the cabinet. The containers pass to the right and then down the right side of the machine where a wash liquid (such as soap and water) is sprayed upon the articles from diilerent angles by the spray nozzles |21, which are located to the right of the center line of the machine. The wash liquid drains from the articles back into the wash tank 21 and continues to recirculate thru the wash liquid system. The articles continue across the bottom oi' the machine, passing to the left and upward wherethey receive a spray rinse from the nozzles |94. As they pass the fan |88, Fig. 3, the water is blown` from the articles causing them to dry. 'I'he heat from the hot liquid which is ordinarily used also facilitates the drying. When the containers reach the opening at the top thearticles are removed and other articles are replaced for continued washing. It is apparent that continuous washing for an indeilnite Vtime is possible merely by removing the cleansed articles from the containers and placing others to be washed while the containers are stationary at orare slowly passing the opening at the top of the machine. To further facilitate the loading and unloading of the machine the novel arrangement of chains and links causes the containers to move at a slower rate of speed while passing the opening at vthe top at certain points in which the movement is interrupted. When the articles have been washed the control handle |84 is shifted to the position I8I-A as indicated by the dotted lines, causingl the control rod to hold the iioat inv closed position, and opening the drain valve |18, to empty the tanks. The control switch is then operated to stop the motor .What is claimed is: 1. In a washing machine; a conveyer, means for -driving said conveyer, means for guiding said conveyer in a predetermined path, means forguiding said conveyer in a zig-zag path, 'a plu- .rality o f containers; means connecting said containers tosaid conveyer to follow said predetermined path while maintained in a vertical position, and means for guiding said containers in a horizontal path while being maintained in a vertical position as said conveyer is guided in said zig-zas path while slowly advancing said containers.
A 2. In a washing machine; a conveyer, means for-driving said conveyer, means for guiding said conveyer in a predetermined path, means for guiding said conveyer in a zig-zag path, a piurality of containers, means connecting said containers to said conveyer to follow said predetermined path, and means for guiding said containers in a diii'erent path than said conveyer as said conveyer is guided in said zig-zag path while slowly advancing said conveyers, and means for retaining said containers against swinging movement when moving in said dierent path.
3. In a dish washing machine,` a central baille. washing and rinsing nozzles disposed beneath said baule.' a series of containers, supporting means -for said containers to which the containers are permanently attached, means for driving said tainers in a U-shaped path along the sides and across the bottom of the machine, and means arresting the advancement of the containers at the top of the machine while the supporting means continues to advance.
4; In a dish washing machine, a central baille, Washing and rinsing nozzles disposed beneath said baille, a series of containers, supporting means for said containers to which the containers are,
permanently attached, means including a motor for driving said supporting means, means for guiding the containers in a U-shaped path along the sides and across the bottom of the machine,
` and means reducing the speed of the advancement of the containers at the top of the machine while the supporting means continues to advance, a central compartment in the bottom of the machine containing the driving motor, said central compartment forming a reservoir at either side thereof for rinse and wash water respectively.
.5. In a dish Washing machine, a tank, inwardly of said tank, continuous chains disposed in said channels, means for driving said chains, links on said chains, containers permanently supported tainers permanently attached to said chain,v
means for driving said chain and containers, and means for reducing the advancement of said containers along a straight path while the chain is advancing alongsaid zig-zag path.
8. In a dish washingmachine, conveyer means, means for driving said conveyer means at a constant rate of speed, a plurality of supporting elemeans over a portion of the travel thereof, and
' presenting U-shaped channels at opposite sides means for interrupting the movement of said supporting elements as said conveyer means continues to move at said constant rate of speed, and Washing nozzles directed over said supporting eley ments in that portion of the path of movement in which the supporting elements travel with the conveyer means.
9. In a conveyer system, conveying means, a pluralityof baskets, links pivoted to said baskets and. to said conveying means 'with the baskets supported in carrying position, means for directing each. basket while maintained in carrying position along a predetermined straight path as it is moved there along by said conveying means, means for directing said conveying means and one end ofthe link along a diverging path which reduces the speed of movement of the other. end of the link and the basket relative to that of the conveying means, and means for driving said conveying means at a constant speed.
10. In a conveyer system, a pair of spaced conveyer chains, a plurality .of elements, links permanently pivoted to said elements and said chains for supporting said elements in carrying position,
means for guiding said chains in a predetermined v y I' the elements along said straight path,
'7. In a conveyer system, a pair of spaced chains,
means for guiding said chains in a U-shaped path, additional means for guiding said chains in a serpentine path acrosslthe end of the legs of said U-shaped path, containers on said chains mounted .to be retained in a vertical position, means guiding said containers to follow the U- shaped path of said chains, and means for advancing said containers at a reduced speed along a straight path while retained in a vertical. position as said chains are passing over said serpentine path at a higher speed.
relative to that of the conveying means, and
1l. In a conveyer systemLconveying means, a
plurality of elements, intermediate means connecting said elements to said conveying means in such manner as to permit the elements to bothpivot and move independently of the conveying means as they aredriven thereby, means for directing each element, while maintained against pivotal movement, along a predetermined straight path as it is moved therealong by said conveying means, means for simultaneously directing said conveying means along a diverging path which reduces the speedA of movement of the element means for driving said conveying means at a