NOV. '12, 1946. o_ F_ FRENCH . ' 2,410,934 WASHING MACHINE FOR WINDOW BLINDS“ Filed‘ June ,21, 1945 ' 4 Sheets-Sheet 1 F2ig’. luvs/won 041:2 F. FRzKcH "244.61% ' ‘if? Nov.'12,194s. o_,..-_ FRENCH 2,410,934". ' WASHING MACHINE FOR-WINDOW BLINDS Filed June 21, 1945 _ . 4 Sheets-Sheet 2 . \V ' INVENTOR. WW4 ' ‘NOV. 12,1946. . > _ Q_ F, FRENCH ‘ . 2,410,934 WASHING MACHINE'FOR WINDOW BLINDS Filed June 21, 1945 _4 Sheets-Shela 's’ .19 _17F2r,¢4.12! 19 - ‘I ' ‘ _ , mmvrox; 041.511?! Fnanan V "Ma Nov. 12, 1946. ‘WASHING MACHINE o." F. FRENCH“ FOR WINDOW'ZBLINDSS Filed June 21, 1945 ‘ 2,410,934 4 Sheets-Sheet 4 _ Patented Nov. 12, 1946" 2,410,934 _ UNITED - STATES PATENT OFFICE ‘ Ogle F. French, Wichita, Kans. Application June 21, 1945, Serial No. 600,805 8 Claims. (Cl. 134——108) 1 ~ ' 2 . showing vlend doors ?aps in their open position, This invention herein disclosed relates to a Washing machine for window blinds, similar to that of the Venetian type, and has for its prin-, as forced by the blinds. I _ Fig. 7 is a vertical section at the upper ex cipal object, to speed up the work to avoid water . tremity of the washing or rinsing walls, said view including one of the spray nozzles. spots, and furthermore to economize the cost of Fig. 8 is a fragmentary inside elevation of Fig. '7. -such work. Fig. 9 is an enlarged section of the trolley and A further object of this invention is to provide track taken on line 9-9 in Fig. 14. a series of chambers'coacting and being aligned Fig. 10 is a section longitudinally of the track for step-by-step continuous operation, namely, ?rst to wash and sterilize the blinds, second, to 10 crossing the rockable joint on line l0--l0 in Fig. 14. rinse thoroughly, third to evaporate rapidly to Fig. 11 is a sectional view taken on line Il-—-l l a dry state to avoid water spots and fromthence in Fig. 14 to illustrate the trolley carrying means outward for delivery. for the free end of the track switch, parts re A still further object of this invention is to provide efficient means to heat water for wash 15 moved for convenience of illustration. Fig. 12 is an enlarged end view of the drying ing purpose and also provide for a current of heated air and circulate the same through the chamber, including a portion of the hot air duct. Fig. 12—A is a modi?cation for the drying chamber eliminating the heated air circulating ducts by substituting infra red lamps therefor. Fig. 13 is a plan view of the trolley chain race, motor and gear ratio to actuate the travel of the drying chamber for rapid evaporation of mois-' ture from the blinds after washing and rinsing the same to avoid marring or otherwise spoiling the ?nished surface of the blind louvers as origi nally treated. , -' A still further object of this invention is to construct a unitary laundry machine for cleaning chain. ' Fig. 14 is an enlarged side view of the track switch mechanism, parts removed for convenience Window blinds made from slats, the process re quired is a means to economize the cost of labor of illustration. ' Fig. 15 is a plan view of Fig. 14. . Fig. 16 is a sectional view as modi?ed to elimi nate the track by the adoption of a hook ‘to carry to operate the machine, and furthermore the cost of manufacturing the units-‘of the machine is comparatively inexpensive and requires but a narrow strip of ?oor space for its installation 30 the blinds direct by the chain. ’ Fig. 17 is a transverse view to that shown in , compared to that required for other complete ‘ laundry equipment for work in general, and such Fig. 16, showing the hook as detachably engaged general laundrying is not included in this in on the chain. ' ' As a more concise description of the drawings, vention. These and other objects will hereinafter be 35 it will be seen that the invention consists of, washing, rinsing, and drying chambers, all being more fully explained, reference being had to the , straight aligned to work coordinately as a unit accompanying drawings forming a part of this speci?cation, and in which like characters will apply to like parts in the different views. for a final result with respect to‘ washing blinds for windows or the like. < 40 Referring to the drawings: Fig. 1 is a side elevation of the invention em bodying the components of the machine with ' respect 'towashing, rinsing, and drying blinds continuously as fed therein. ‘ Fig. 2 is a top plan view of Fig. 1, showing the motor and pipe circulating system, parts removed spaced relation by ?exible strips B transversely 45 crossing the strips oppositely with respect to their edges and being secured thereto to permit simul ' taneous rocking of the slats to an open or closed for convenience of illustration. Fig. 3 is a plan view of the‘ washing chamber, water tank and heating pipes. ' Fig. 4 is an end view of Fig. 3, parts removed Attention is ?rst directed to the structure of the said blinds as comprising a plurality of “slat like elements A made of wood or other materials, and being secured together in parallelism and in position so that spray washing of the blinds will 50 be therethrough from edge to edge for‘the sides of the slats and including the ?exible 'stripsf To accomplish cleansing of the blinds bys'pray washing, it will be seen that the‘components of the said washing machine consists of all-‘shaped Fig. 5 is a plan view of the rinsing chamber washing chamber, later described, and being ver and water tank therebeneath. Fig. 6 is a fragmentary side view of Fig. 5 55 tically mounted on a water tank I, said tank hav for convenience of illustration. 2,410,934 ing a tubular heating pipe 2 consisting of straight 4 catch basin with continuous drainage through portions C of suitable length and diameter that its respective said waste pipe l1. are connected end to end correspondingly by re After a thorough rinsing of the blinds, the turn arced joints D for continuous circulation of same are transferred into a drying chamber by a current of heat through said pipe and outward 5 a relay switch later described, said chamber com therefrom through a vertically disposed pipe 3 prising side walls “! spaced apart, the upper ex that is connected to the discharge end of ?rst said tremity of which is enclosedby a top member i9 pipe assembly and from thence to a chimney or through which extends vent openings 20, said the like, while the other ‘or intake end of said pipe openings being provided with lids 2i to open as 2 has a gas burner I inserted therein and a gas 10 an exhaust for moisture evaporated by a current supply pipe 5 as fuel feed for the burner, said pipe having a valve control 6 for the gas, whereby water contained in the tank may be heated to a‘ high degree of temperature, and then charged with an e?icient washing compound and con of heated air in the process of drying the blinds and the said side walls being closed at their lower , extremity by a metallic bottom 22 seated on a ‘support 23. Spaced upward from said metallic 15 bottom is a perforated plate 24, said plate being tinuously circulated by a force pump to quickly secured to the side walls of the drying chamber cleanse the blinds as sprayed by the water while and braced by metallic bars 25 extending across said blinds are passing through the washing the drying chamber from wall to wall whereby chamber, the conveyance for the blinds later a ?re-proof chamber 26 is arranged. Positioned 20 outward and along one side of the drying cham Said washing chamber as heretofore stated is ber is a mechanical heat circulating device con vertically positioned and seated on bars- 6' cen sisting of a motor 21 as actuating means for a fan described. . ' ‘ trally crossing the upper extremity of said tank and the said chamber consisting of two hollow 28, the exhaust neck 29 of which communicates with a heating device 30 and from thence into ,a metallic‘members as legs ‘I that are spaced apart 26 duct 3|, the duct exhausting air of a high degree and secured by a hollow bottom portion as a of temperature into and through said chamber crotch 1', the‘ space being su?icient for one set 26 and upwardly through the perforations 24' of blinds to pass therebetween and also for a of plate 24 into the drying chamber 26' above plurality of spray nozzles 8 communicating with described,-and when the blinds are dried they are their respective hollows of said members and 30 removed from track terminals E that extend out extending inwardly toward each other from the confronting sides of said hollow members, said ward from the'drying chamber to where they rest 'on a beam 32 which is carried by posts 33. hollow members being so positioned and con It will be seen in Fig. 1, that blinds are conveyed nected will function as sides and bottom of the through the washing unit as a whole on a track washing chamber, the sides of which are secured 35 _34 positioned above the washing and rinsing by brace members 8'. The ends of the chambers chambers while the drying chamber extends to are closed by rubber ?aps 9, having one edge of a higher plane to provide room for a rockable each secured to its respectiveend of the side ,switch mechanism later described. Said track walls by a strip 9’, said ?aps, adapted to flex and race 35 spaced vertically are supported at inward and outward as the blinds pass there 40 their forward ends a spaced distance from the between on their path through the said washing washing chamber by a vertically disposed post chamber. The purpose of the flaps is to restrict 36, while the other ends of said track and race the water spray from freely passing outward are carried by the drying chamber as follows: from the ends of the chamber and to retain the It will be seen that the race a spaced distance acquired heat from the temperature of the water '45 inward from its other end as at I slants upward within said chamber but free to pass outward , and toward the drying chamber where its ter through the opening at the upper extremity of minal end seats on the upper extremity of the the washing chamber-but being in contact with drying chamber, said race being so formed is the blinds on its path upward. The water pres means to provide room for the track switch mech sure for the spray nozzles is produced by a pump anism and also to position the track and race in ID that is actuated by a motor I I, said pump being parallelism from the‘ forward ends to where the connected to a pipe line comprised of a joint I! slant begins. _The said race is formed from a that connects the pump to one side of the wash pair of L-shaped members spaced apart to pro ing chamber to build up pressure in the hollow vide an opening F between their confronting hori thereof while the water supply is taken from tank 55 zontally disposed legs 38 while the other legs I by pipe joints l3 for continuous circulation of upwardly extend to form a channel in which to the hot water that is treated with washing com position an endless chain belt 39 that engages pound as heretofore stated to cleanse the blind on rollers 40 and sprockets 4| journalled in bear section conveyed through the washing chamber ings 42 upwardly extending from the vertically in a continuous aligned movement. To discharge -60 disposed legs 38, said rollers to carry the weight the water from the tank, it will be seen that by of the upper portion of the belt while the lower opening valve H the tank will drain through pipe portion thereof slides on the legs horizontally portion l5, it being understood that the water disposed. ' from the washing chamber is free to return to As. traveling means for the chain belt is the tank as it drains from the bottom of said 65 through the medium of a motor 44 positioned on chamber as a result of the spray action. the chain race adjacent the ?rst named end - ‘Said blinds as washed will enter a rinsing thereof to actuate a train of gears 45, 46, 41, and chamber that is vertically mounted on a tank 48 to reduce the speed travel of the chain belt that functions as a catch basin i6 for the rinse as the blinds are to move slowly through the water as sprayed on the blinds, and from thence 70 washing, rinsing and drying chambers. outward, through a waste pipe l1, otherwise it To convey the blinds it will be seen that trolleys will be seen that the rinsing chamber structurally is the same as the washing chamber,_but supplied with city water pressure line l5’, while its tank is also reduced in size and merely to function as a 75 are provided to carry the blinds, said trolleys comprising a sheave 49 to roll on the track, said sheave being journalled in a bearing 50 having a hook 5| downwardly extending to engage with 2,410,934 5 V , a hook G of a clip 52 that has a loop H'in which a carrying bar 53 for the blind will engage, while on the other or upper end of the bearing is a ?nger J of sufficient length to enter a link of the chain as moving means for the clip or clips to convey the blinds pendantedly through the to an arcuate track “that is dimpled at spaced intervals along its underside as at P, and the said track at its'terminal ends being secured to terminal ends correspondingly of a bar 60 that crosses the elevated portion of the chain belt race and being secured thereto at the longitudinal center of said bar. As above stated with respect washing and rinsing chambers. Immediately to the trolley, it will be’ seen that it consists of after the rinsing, the ?nger of the clip automatii a bar 62 having an offset R to connect the same caliy releases from the chain belt dueto a down to the free end of the switch as shown in Fig. 11 ward incline K along the upper edge of the 10 to avoid obstructing the trolley roller 63, said track as shown in Fig. 14 and co-incident there roller being journalled between a pair of bearings with the blinds thus detached are forced onward 64, while the lower ends of said bearings are by edgewise contact and being directed by a secured to the upper end of said offset bar where rockable portion of the track that functions as by the switch is easily rocked to registry with a switch at to ?ll a series of tracks 55 positioned 16 adjacent endsof the drying chamber series of in the drying chamber in spaced relation across tracks, and the said trolley has a spring ten said chambers and being in parallelism and ex sioned stay bolt 65 to seat in the dimples at the tending outward from the terminal end of said instant of end registry of the switch and tracks, drying chamber as shown in Figs. 1 and 2, at consecutively or selectively as‘ the case may re which outward point the blinds when laundered 20 quire. ‘ are assembled for delivery. A portion of the To move the switch from its locked position other ends of said tracks are positioned con there is provided a rod or chain 65 with which to vergently and terminating as indicated by a draw the bolt from engagement with the dimples dotted arcuate line 55' so that the rocking move to free the trolley for further movement of the _ ment of the free end of the switch member will 25v switch manually. circumscribe and register rigidly but releasable in As a modification for the drying chamber, at consecutive order with the ends of the said series tention is directed to Fig. 12—A in which the side of tracks that terminate along said dotted line walls are closely positioned so that a single blind 55’ as above described, whereby the said tracks at a. time will pass there-between and being dried of the drying chamber are co-ordinateiy ?lled by a series of infra red lamps 61 positioned on the with washed blinds to dry the sameco'ntinuously inner side of both walls and being directed toward step by step repeatedly duringthe washing action of the machine. ' ‘ each other so that heat produced thereby will ' contactboth sides of the blind simultaneously As a carrying means for all tracks, it will be for rapid evaporation of moisture deposited on seen thathanger bars 56 have their upper ends 35 the blind while passing through the rinsing rigidly secured to their respective chain race as chamber, and switch means to'make and break in Fig. 9 and ceiling or top enclosurev of the dry the electric current for the lamps wholly or in ing chamber as in Fig. 12 while their lower ends part from the upper rows of lamps downward as have an offset L to space the bar portion from are controlled. the track, as well as to provide room for sheaves 40 desired A further modi?cation resides in the carrying to roll in the clear while conveying the blinds means for the blinds through the medium of a along said tracks 3l_ and '55. InFigs. 9, 10, 11, 14, and 15 is shown the com ponents ofa transfer switch mechanism con sistingof a track portion as a switch?! rockably joined to a. single track 34 between said rinsing and drying chambers, the knuckle joint M of I abutting for rocking ‘which is concavo-convex‘ , coupling having a loop 68 on one end thereof to engage the carrying bar of the blinds, while on the other end of the coupling is a hook 69 to engage On a knuckle 10 that rockably connects the links of the chain. By this arrangement the blinds are removed from the chain when laun dered. In this modi?cation the single track and movementv oppositely on a horizontal plane, said chain belt extend through all of said chambers switch member being rockably carried at one end 50 whereby the switch and series of track aré elimi by a U-shaped frame ‘56', the legs of which ex nated, and such other modi?cations may be made tend horizontally and vertically aligned in spaced as lie within the scope of the appended claims. relation, the upper leg having an extension N Having ‘fully described my invention, what I positioned at right angle on the same plane and claim as new and desire to secure 'by Letters has a stud 51 pivotedly seated in a socket 58 that Patent is: ' is secured to the chain belt race while the lower 1. In a washing mi shine for window blinds, of leg is secured rigid to the switch a spaced dis the class described, a tank for containing wash-, tance inward from its rockable connection with ing ?uid, a heating pipe positioned in the tank the single track, said space being equal to the to be submerged by the ?uid, means to circulate length of the offset of the upper leg, above re 60 heat through the pipe to heat the washing ?uid, ferred to, to rock or swing the switch oppositely a pair of hollow walls seated in spaced relation on a horizontal plane by rocking the frame man on the tank, a plurality of nozzles for each wall, ually, it being understood that the legs of, the the nozzles being in spaced relation on the 7 conU-shaped frame 56’ will straddle the slanting fronting sides of their respective walls, a motor portion Iv of the said race to facilitate an equal 65 actuated pump, and pipe means to connect the distance swing of the switch oppositely as re pump to the tank and said hollow walls to circu v quired for registry engagement 'of its free end late ?uid from the tank'through the wallsvand with the adjacent terminal ends of the series of outward through the nozzles as washing means tracks in the drying chamber so that the trolleys for Venetian blinds pendantly carried between the 70 will travel smoothly from the switch element hollow-walls, there being conveying means for onto said track series selectively or consecutively the blinds between said hollow walls. from track to track of the series. It will be 2. In a washing machine for window blinds, of seen that the other end of the transfer switch the class described, a tank rectangular in form is carried by a trolley later described that con nects the outer or free end of the transfer switch 76 and of suitable depth, the upper extremity of I 2,410,934 which is open, a heat-conducting' pipe entering .8 5. In a washing machine for window blinds at one side, running to and fro through the tank comprising a tank as a water container, a spray and outward therefrom for a desired temperature , washing mechanism positioned on the tank, a conveyor for Venetian blinds in working relation to the washing mechanism, said washing mecha nism comprised of a pair of hollow elements sub of washing ?uid contained in the tank, a pair of hollow walls upwardly extending from the tank, means carried by the tank to support the walls concentric to the opening of the tank, a pump connected with the hollow walls and interior of the tank as circulating means for washing ?uid con tained in the tank through said hollow walls, a series of nozzles distributed over confronting sides of the hollow walls, the nozzle series to eject water toward each other under pressure from the pump to wash a set of Venetian blinds on ' stantially rectangular in form and a hollow bot tom communicatingly connecting the hollow ele ments, said hollow elements being spaced apart by the bottom so that the blinds may be con veyed between the hollow elements, nozzles plu rally applied to the confronting sides of the said hollow elements, and a pump for circulation of the water from the tank into the hollow elements both sides thereof simultaneously while said 15 and outward through the nozzles as washing blinds are moved continuously between the hol means for both sides of Venetian blinds simul low walls, and pendant carrying means for the ' taneously, said water returning to the tank. 6. In a washing machine for window blinds. as recited in claim 5, pipes connecting the said blinds. . 3. In a washing machine for window blinds, of the class described, a tank as a container for 20 hollow elements with the tank and said pump water, a heating duct of suitable diameter extend for circulation of the water. ing through the tank and being submerged by the '7. In a washing machine for window blinds, a hollow U-shapedstructure having upwardly water as heating means therefor, a pair of hollow ' walls in spaced relation carried by the tank, a extending legs rectangular in form and being plurality of nozzles for each wall, the nozzles be 25 spaced apart by its hollow crotch, the latter as ing in spaced relation on the confronting sides communicating means for water into the legs, a of their respective walls, a pump having pipe plurality of nozzles uniformly spaced over con means to connect the pump to the tank and said fronting sides of the legs for spraying hot water hollow walls to force water from the tank into from leg to leg across the space therebetween, a the walls'and outward through the nozzles as 30 tank for heated water, said tank being open at washing means for Venetian blinds pendantly the upper extremity and upon which the U-shaped carried between said hollow walls, and a pair of structure is seated, a duct extending to and fro rubber flaps to close each end of the space be . within the tank and terminating in spaced rela tween the hollow walls. ‘ , tion a short distance inward from each wall of 4. In a washing machine for window blinds, of the class described, a tank, a tubular heating pipe positioned in said tank for heating water the tank, and means to produce and cause circula tion of hot air through the duct to heat the in said tank, said pipe having straight portions and arced joints to connect the straight portions 8. In a washing machine for window blinds, water. . a hollow U-shaped structure having upwardly to increase the length of the pipe as coupled, 40 extending legs rectangular in form and being means to circulate and heat the air for said pipe, spaced apart by its hollow crotch, the latter as a pair of vertically positioned hollow members communicating means for water into the legs, a having a hollow member to connect the same at plurality of nozzles uniformly spaced over con their lower extremities, bars to support the hol fronting sides of the legs for spraying water low members above said tank, and a plurality of 45 from leg to leg‘ across the space therebetween, spray nozzles for the confronting sides of the and a tank on which the hollow structure is vertically disposed hollow members, said nozzles seated, said tank being a catch basin for water being evenly distributed in spaced relation over as it leaves the U-shaped structure. the entire area of the said sides. OGLE F. FRENCH.