US2475925A - Shoe repair finishing machine - Google Patents

Description

July 12, i949 s. TAVANTZlS 7 SHOE REPAIR FINISHING MACHINE Filed April 50, 1946 3 Shaeftls-Sheet l INVENTOR. 801132 JAVANTZIS Pomkavu MA ENE w.

' 677'0P/VEKS.

31 91949. s. TAVANTZIS I 2,475,925

SHOE REPAIR FINISHING MACHINE v 3 Sheets-Sheet 3 Filed April 30, 194 6 INVENTOR. 6011212 TAVANTZIS BY j Patented July 12, 1949 UNITED STATES PAH Fl CE SHOE REPAIR FINISHING;

Soter. Tavantzis, Detroit,e.Micli Application April- 30, 1946; Seii'al Not 66,108

11 Claims. I

This invention relates to shoe repairing machines and particularly: to the arrangement and control ofa'theioperatingi-parts thereof.

An important? object of-t this invention is to provide:- a;. novel: machine for repairing shoes which is "compactly" assembled f to conserve space and isrreadilv controllable to vary the operation oiis th'ezmoving partsethereof: Another important'ifeature of thelinvention isto provide a novel unitary control'mechanismfor varying the speed of; rotation: ofiaipair ofithe' shafts carrying the shoerepairing devices whichroccupies little space andis locateduinta positionon the machine-readily accessible to: the operator; A further object of the" invention. is to. provide a novel device for controlling the shaftltspeedx'whichis also associatedwin a novel'man'nerxwith the dust collector for. automatically:modifyingthe operation thereof} in accordance .:with thecontrol exercised: by the device over the-shaftyspeed:

Various other objects, advantages and: merie torious features will-.becomez,more fully apparent from the following specification, appended claims; and 1 accompanying: drawings wherein Fig. .1 l is a; front elevation :of a machine embodying. this invention...

1 Fig. 2 is a top planegviewl of the machine'of Fig; Fig.- 3 is a. vertical, cross sectional view along line ;.3-3 def-Fi .2,'

Fig. 4 is an end view of the machine,

Fig. 5 is an: enlarged; cross sectional view. along line 5r+5.-- of i Fig. 1,

Fig, fizis v an: enlarged: vertical sectional view through thecontrol tmechanism along line 6'--6 of Fig; 6;-

Fig.. 7 is aview of .therinside" face of one of the members ofthe control mechanism showing the method: ofv releasablylocking the member in any one ofa plurality of positions to whichtitxmay be adjusted, and.

Fig. 8 .is,.an enlarged detail view ofthevalve control mechanism for the; dust-collector.

In-the embodiment of the invention illustrated herein the machine 'compriseszan' elongated frame which.as--best; shown in-I'lig; 2 may be composed of .two separate .sectionsbroughtz into endeto end relation. Each section comprises vertical floor engagingcorner; frame. members l; spaced pairs of horizontal. longitudinally extending members l2 and:spaced horizontally'extending transverse members 14. To conserve space,.onesection may be made narrower than. the-other asshown in E 'g=.2. Theetwovsections of the frame are usually mountemagainsm azwall; and; theatwouparkchme acter of the frameenabl, s-,:one section to .be ad- J'ustede transversely*wi-thlrespect tothe other to accommodate the-entire frameyin, thespa e. all cated: therefor rim theislmplwim which thewmachine is. installed:. To facilitate? his. adjustment: a flexibl'e hose: sectioni lfiem'ay be: interposed in the-blower-pipm llhwhiahzruns theglength of the machinez atathee juncture Ofs the 1 two .=-fr ame sectionsr.

Each frameeseetiomsuppnrts:afrotatable driven shaft; on; the; frontt sidesthereoiaf up Which is carried-a series f:shoezrepairing .devices of. he characters:well knowncby;those skilleddn this art. Onei driven shaft iscindicated; at ;'ontheleft sides of? the: machine: illustrated herein and. he other driven shaft-11s.zindicatediat"122 *on the; ri ht side thereof; Althonghethese :drivenshafts may 1185 arrang-em- 3 1. endjtm'enda a i nment it isrii eferred for the purpose of conserving space. and reducing: thBfJBHtjiI'EYlGHQth'i of;- the machine to ofiset. the; twotshafts'; and: 1101 1 1); thegshafts so thatv their: "adiacentc. endsyoverlapi; upon; one: 311 other; as.shownein11 ig;:..2:. Having: twoi separate driven: shaftsain 2116112 or:- one: long.-.shaf:t running the;-.-1ength.=: of. thewmachinez asx heretofore it: is possible j:to'::economize inethe; power'usedto drive these. shafts; by oneratinge one. when, the shoe repair; d-evicesaonn the other 'sha-fti are nottneeded.

l3he overlapping: oflsetmelattonwffthe two shafts enables: thexoveralli'ilength :of-1the2machine to .be reducedwhioh iszimportantgin small shops where such; machines; area usede A. drive shaftr- 24 1' for rotatingthe two i driven shafts-:.is= mountediion the: rear; side 1 of one: ofthe frame sections; the l'eftb aswshown in. Fig. 2 in parallel relation: tor-ethe zdriven shafts andwith oneendl portiontopposite the adjacent ends of the drivengshaftsil The drive shaft" receives: its motive powenfrom (am electric"v motor 2.6" located below :the" shaft @by; meanstofi ann endl'essbelt 28 operativelyl; extending between; the: two. Each drivenash aft: istoperativelypcon-nectedlto the drive shaft? by. meansaoiranmendless, beltzx. As shown in Figs: 2 andfi5; vt1 1-e..inne1i end portion of the drive-a shaft 1. opposite. thez adii acent: ends of the drivencshafts isiprovidedwwithitwo driving pulley wheelsatll audit? The driven shaft 20 1s provided: om its inneavendilwitlna driven pulley wheel 3min alignmentrwith thelpulleyswheel 30: on; the dIlVeEShaf-t. Theedrivenzshaftzinois: likewise provided :with a: driven pulley-wheeli36 1onits inner enclzraligning: with; K the pulley. wheel. 32: on.- the drive shaft: Anuendless beltfl3$ extendsbetween the piilleyuwheelsfim and 3.4 -..a=-second-. endless 'beltiflfltiextelldsg betweemthea hum-pulley; Wheels 32 and 36. The two belts extend in slightly spaced apart parallel relation transversely of the machine as indicated in Figs. 1 and 2. For purpose of clarity the two endless belts 38 and 46 and the control mechanism therefor have been omitted from the end view of the machine in Fig. 4.

Interposed between the two endless belts at a height above the drive and driven shafts is a novel control mechanism for separately and independently controlling the drive relation between the shafts. This control mechanism is supported on a generally arched frame member 42 extending between the two inner corner posts |6l of the left frame section and resting thereon as shown in Fig. 5. This member is flanged along its outer edge and so shaped as to provide a fiat horizontal section 44 upon which the control mechanism is mounted. The control mechanism comprises a fixed supporting member 46 preferably rounded on the top and the forward and rear sides and having laterally extending leg portions which are bolted or otherwise secured to the flat section 44. On either side of this fixed support are rotatable members 48 and 50. The latter are journaled to the fixed support by a single bearing member 52 (Figs. 6 and '7) extending through the support from one side to the other and projecting from the opposite sides to form the journals for the rotatable members. The rotatable members are preferably circular in formation and correspond in shape and formation to one another for interchangeable mounting and to the curvature of the fixed supports. From each rotatable member projects a handle for rotating the member. As shown, a handle 54 projects upwardly from member 48; a similar handle 56 projects upwardly from member 58.

Carried on the outer face of each rotatable member of the control mechanism in eccentric relation to its axis of rotation is an idling pulley wheel. The pulley wheel carried on the member 48 is designated by reference numeral 58; the pulley wheel on member 50 by reference numeral 66. These pulley wheels are disposed in the planes of the endless belts 38 and 40 and the latter are looped or passed over the pulley wheels in the manner illustrated in Fig. 5. The two extreme positions of the rotatable control members 48 and are indicated by the dotted and full line positions of member 48 in Fig. 5. In dotted position, the pulley wheels provide sufiicient slack in the endless belts which renders the drive shaft 24 ineffectual to rotate either of the driven shafts. When swung to their full line position as indicated in Fig. 5, the belts are sufiioiently tight enough to rotate the driven at substantially the same rate of speed as the drive shaft.

The control mechanism is provided with novel means for releasably holding the rotatable members 48 and 56 and their respective handles in the two extreme positions and the several intermediate positions. This means comprises spring pressed detents or balls which engage the rotatable members and releasably lock the members in adjusted positions. Referring to Fig. 6, a novel provision is incorporated in the control mechanism which reduces the number of parts and economizes in the manufacture of the machine. A single aperture or bore 62 extends transversely of the fixed supporting member 46 and opens out on the opposite sides thereof. In each end of this bore is a detent member or ball 64. These balls areyieldingly urged outwardly by a single coiled spring 66 which is common to both balls. The inner faces of the control members 48 and 50 are each provided with an arcuate series of depressions or recesses 68 as shown in Fig. '7, which as the members are rotated align successively with the axis of the bore. It is evident that as each depression appears opposite the end of the bore the balls 64 will seat therewithin and releasably lock the control member in position. The intermediate positions of the control mechanism will provide variable speeds increasing as the handles are swung in the direction to apply more tension on the belts.

A shorter auxiliary driven shaft 10 is mounted on one of the frame sections, in this instance the wider section, for operating a special shoe repairing device 12. The device in the present embodiment of the invention is a shoe trimmer. A similar device 14 is mounted on the left end of the driven shaft 20 and the two trimmers as shown in Figs. 1 and 2 are disposed one above the other at the left end of the machine. Shaft 75 is driven by an endless belt 11 extending between the inner ends of the shafts and over pulleys mounted thereon. A dust or particle collecting hood 16 partially encloses the two trimmers. The blower pipe [8 previously referred to communicates at its remote end with the hood 16. The pipe l8 extends the length of the machine on substantially the level of the driven shafts, each part thereof in each frame section being joined together by the flexible hose section I6 previously described. The opposite end of the pipe 18 from the hood l6 communicates with a downwardly bent extension !8 which leads to the intake side of a blower 86. The latter is driven in any suitable way such as by an endless belt 82 operatively coupled to the driven shaft 22. The discharge end of the blower communicates with any suitable dust collecting receptacle such as the air pervious bag 84.

The auxiliary shaft 10 is driven by an endless belt 86 which as shown in Fig. 2 is passed over a pulley wheel 88 on the shaft 76 and a pulley wheel 98 in the drive shaft 24. Between these two pulleys and at a height thereabove is a control mechanism of the type previously described for varying the tension of the endless belt 86. This control mechanism includes a fixed supporting member 92 similar to support 46, a rotatable control member 94 similar to either control member 48 or 50 fixed to a rotatable stub shaft 95 and having a control handle 96, and an eccentric idling pulley wheel 98 similar to either pulley wheel 58 or 60 over which the belt 86 passes. A spring pressed detent similar to that previously described engages in recesses on the inner face of the rotatable member 94 to hold the same in any one of several positions of its movement. It is evident that swinging the handle 96 will vary the tension of the belt 86 and thereby vary the speed of the auxiliary shaft 1|] from a zero speed to a speed sufficient to trim soles. The control mechanism for the belt is preferably mounted on a transverse arched support I06 having a fiat top I62 on which the control mechanism is mounted. A similar arched support I04 is provided on the left end of the machine adjacent to the hood 16. The auxiliary shafts are 10 and 15 rotatably supported on the front side portions of these arched supports as indicated in Fig. 1.

At spaced intervals along the blower pipe [8 a plurality of dust collecting hoods or ducts I06 are provided which partially enclose certain of the shoe repairing devices to exhaust thedust laden air-therefrom. When-the trimmers II-and I4 are not in operation itis" desirable to prevent the pipe I8 from exhaustingair'from'the end hood 16' to more effectively-operate the exhaust ducts I06. This is-acco-mplished-in a novel'manner by automatically cutting off-communication between the blower pipe I8 and'the hood 16 when the control mechanism for the auxiliary shaft III is shifted to a position which reduces the speed of the shaft to zero. As shown in Fig. 3; a valve or gate member I08 is provided which is capable of swinging across the inlet opening H0 to the blower pipe I8. This gate'member is pivoted at M2 to the inside wall of the hood I6 and in the full line position in Fi 3'the'gat'e is opened to permit the exhaust of air'from the hood and in the dotted line position the gate member cuts off the-opening III). The gate'member'is provided with an extension H4 on the opposite side of pivotal connection to which ispivotally connected the end of a link I i6. The latter has its opposite end pivotally connected'through an arcuate slot I I8 in the inner wall of the hood to a second link I on the outside of the hood which is pivotally supported intermediate its ends at I22 on the wall of the hood 16. The opposite end of the last mentioned link is pivotally. connected to an arm I24 which extends upwardly for a short distance and then is jogged intermediate its ends as shown in Figs. 1 and 8 for fixed securement to the stub shaft 95 of the rotatable member 94 supported in the fixed member 92 of the control mechanism for the auxiliary driven shaft 10. The linkage connection is such that upon movement of the control member 94 by the handle 96 in the direction approaching maximum driving speed relation between the drive shaft 24 and the driven shaft Til the gate member is swung to opened position, but when the control member is rotated in the opposite direction to slacken the belt drive the gate member is automatically swung to closed position. Thus when the auxiliary shaft 16 is inoperative the communication of the pipe IS with the hood is cut off and .the'suction applied at the exhaust ducts I66 is thereby, increased. When it is desired to use thev trimmers I2 and 14, the shaft 22 is driven from the drive shaft 24 by moving lever 56 to one of its operative positions. Thus driven, the shaft 22 will operate the blower 80 by means of the belt 82 and cause air to be drawn from the hood I6.through the pipe I8.

The operation of the machine is readily apparent from the previous description. When the machine is set into operation the drive shaft 24 continuously. rotates. The driven shafts 20, 22 and I0 may be independently coupled with the drive shaft by merely swinging any one or all the control handles 54, 56 and '96. The operator may adjust the speed of the driven shafts to any desired speed by releasably locking the control mechanisms at any one of the control positions provided. The control mechanisms are within easy reach of the operator and as shown herein are constructed of similarly shaped parts for lowering the cost of manufacture and for interchangeability.

Various standard shoe repair devices are carried by the driven shafts. In addition to the trimmers heretofore described, the driven shaft 26 may carry the brushes I30 and I32, the polishing-wheels H4 and I36; a rougher I38 partially enclosed by an exhaust vent I 06' and a wire brusher- I4II-on the extreme'righti The last overlaps the; inner end 1 of theoflset driven shaft 2 2;

Carried on the lattermay -be two sanders" I 42' and I44 which are partially enclosed byexhaust ducts I06, a pair of polishing wheels-pr sanders I46 and I48 and on the-extreme'rri'glit 'a heel scourer I511. The relation of these repairdevicesto-one another and the overlapping relation of" the two driven shafts 20 and. 22 saves in the number'of steps required by the operator to shift from one device to the other. 'I'h'e-twopart character of the frame and the"independent'operation of the driven shafts conserves spaceand economizes in the power consumed.

What I claim is:

1. A shoe repair machine comprising, incombination, a pair-of rotatable'shafts-eaeh having-a length substantially one half that of-the machine and each carrying shoe'repair devices arranged thereon in axial spaced relationship, means mounting said shafts on the front side of the machine, one opposite each'half section thereof; with the axes thereof in offset parallel relationship and with the adjacent ends of the shafts in overlapping relation, power means forrotating said shafts including a separate endless driving belt operatively connecting the-power means to each shaft, and control means for varying the tension of each of said endless drivingbelts forvarying the rotation of said shafts andthe devices carried thereon.

2. A shoe repair machine comprising, in combination, an elongated supporting'structure, a pair of rotatably driven shafts each approximately equal to one half the length-of the frame, shoe repairing appliances carriedon each shaft P for rotation therewith, means mounting said shafts along one side ofthe supporting structure with one shaft occupying substantially one half the length of the supporting structure and the other shaft occupying the'other half thereofwith the axes of the shafts in parallel relation, a rotatable driving shaft, a. pair of' endless belts disposedv transversely of the supporting structure midway between the ends thereof and "operatively connecting said drivingshaft to each of'the adjacent ends of saiddrivenshafts, and a control mechanism disposed'between said endless belts adapted to separately vary the'tension of bolts from a degree of "tension which enables the driving shaft to rotate ineffectually to a degree of tension which enables the driving shaft to drive each of the driven shafts at substantially. the same rate of speed.

3. A shoe repairing machine. comprising, in combination, an elongated supporting structure including a right frame section and aleft frame section mounted in side by side relation but capable of bodily adjustmentwith respect to one another, a rotatable. driven shaft mounted on the side of each frame section in parallel relation to one another and each carrying a series of axially spaced apart shoe repairing appliances, a rotatable driving shaft .carried by the supporting structure in offset parallel relation to said driven shafts and overlapping the adjacent ends thereof, a pair of axially spaced pulley wheels carried by said drivingshaft, a pulley wheel carried on'the adjacent end of each of said driven shafts aligning with one-"of the pulley wheels on the driving shaft, an endlessbelt operatively connecting each pulley on the driving shaft with the pulley on each driven shaft, said endless belts extending in slightlyspaced apart'parallel relation and normallyhavingsuffi'cient slack so as to prevent the-drivingshaft from rotating either or said driven'shafts; a control-mechanism carried by the supporting structure between said endless belts intermediate the driving and driven shafts including separate means for each endless belt for progressively increasing the tension thereof to proportionately increase the speed with which said driving shaft operates said driven shafts.

4. A shoe repair machine comprising, in combination, an elongated supporting structure, a pair of rotatable driven shafts each approximating in length about one half the length of the supporting structure and each carrying a series of axially spaced apart shoe repairing appliances, means mounting each shaft on the front side of the structure with one shaft occupying the left side thereof and the other shaft occupying the right side thereof, a rotatable driving shaft carried by the supporting strulcture in offset parallel relation to said driven shafts and overlapping the adjacent ends thereof, a pair of axially spaced pulley wheels carried by said driving shaft, a pulley wheel carried on the adjacent end of each of said driven shafts aligning with one of the pulley wheels on the driving shaft, an endless belt operatively connecting each pulley on the driving shaft with a pulley on each driven shaft, said endless belts extending in slightly spaced apart parallel relation and normally having sufficient slack so as to prevent the driving shaft from rotating either of said driven shafts, a control mechanism disposed between said endless belts intermediate the driving and driven shafts, said control mechanism including a pair of eccentrically mounted pulley wheels, one for each belt, positioned so that the belts pass over the rims thereof, manual control means for each eccentrically mounted pulley for bodily shifting the same about its eccentric axis of rotation for progressively increasing the tension of said belts to proportionately increase the speed at which said driving shaft rotates said driven shafts, and means for releasably holding either of said manual control means in any one of a plurality of positions.

5. A. shoe repair machine comprising, in combination, a drive shaft, a pair of driven shafts, means mounting said driven shafts in parallel relation to said drive shaft, an endless belt for each of said driven shafts operatively connecting the drive shaft with each driven shaft, said endless belts extending in slightly spaced parallel relation to one another, a control mechanism for the endless belts interposed between said endless belts including a fixed support having a rotatable member journaled on either side thereof, a pulley wheel for each endless belt eccentrically carried on each of said rotatable members in position for its respective belt to pass thereover, a control handle on each of said rotatable members capable of rotating the same and swinging the pulley wheel carried thereon for varying the tension of the belt passing thereover, a movable lateral projecting member on either side of said support adapted to engage in any one of a series of seats provided in said rotatable members to 'releasably hold the same in adjusted position, and a single spring carried by said support yieldingly urging said lateral projecting members outwardly into engagement with said rotatable members.

6. A shoe repair machine comprising, in combination, a drive shaft, a pair of driven shafts, means mounting said driven shafts in parallel relation to said drive shaft, an endless belt for each of said driven shafts operatively connecting the drive shaft with each driven shaft, said endless belts extending in slightly spaced parallel relation to one another, a control mechanism for the endless belts interposed between said endless belts including a fixed support having a rotatable member journaled on either side thereof, a pulley wheel for each endless belt eccentrically carried on each of said rotatable members in position for its respective belt to pass thereover, a control handle on each of said rotatable members capable of rotating the same and swinging the pulley wheel carried thereon for varying the tension of the belt passing thereover, said support having an aperture therethrough opening out on either side thereof, a single coiled spring disposed in said aperture having spring pressed elements on either end thereof projecting outwardly from the side of the support into engagement with said rotatable members, and said rotatable members having a series of depressions so positioned with respect to the elements that as the members are rotated by their respective handles the elements releasably seat within the depressions to hold the members in adjusted position.

7. A shoe repair machine comprising, in combination, a drive shaft, a pair of driven shafts each carrying a series of axially spaced shoe repairing devices thereon, means mounting said shafts in parallel overlapping relation to one another, an endless belt for each driven shaft extending in slightly spaced parallel relationship and operatively connecting the drive shaft with each driven shaft, a control mechanism for the endless belts located between the belts at a height above the drive and driven shafts, said control mechanism including a fixed support having a rotatable member journaled on either side thereof, a pulley wheel for each belt eccentrically carried on the outer faces of said rotatable members in position for its respective belt to pass thereover, a control handle projecting upwardly from each of said rotatable members adapted to rotate the same and swing the pulley wheel carried thereon through an are which increases the tension of the belt from a slacked condition wherein the drive shaft is incapable of driving the driven shaft to a tensioned condition wherein the drive shaft rotates the driven shaft at substantially the same rate of speed, said rotatable members each having an arcuate series of recesses on their inner faces opposite the fixed support, said support having a bore therethrou'gh opening out through the opposite sides thereof in alignment with said arcuate series of recesses, a locking element mo-vably mounted in each end of said bore. and a single coiled spring in said bore between said locking elements yieldingly urging the elements outwardly into engagement with said recesses to releasably lock the rotatable members in adjusted position.

8. A shoe repair machine comprising, in combination, a frame, a drive shaft, a driven shaft carrying a series of axially spaced shoe repairing devices thereon, means mounting said shafts in parallel spaced apart relation on said frame, an endless belt extendingbetween said drive and driven shafts operatively connecting the two together, a fixed member, a rotatable member journaled on said fixed member, a pulley wheel eccentrically journaled on said rotatable memher in position for the endless belt to pass over the rim thereof, a control handle on said rotatable member adapted to rotate the same and swing said pulley wheel through an are for varying the tension of the endless belt, and means 9 operatively interposed between said fixed member and said rotatable member for releasably holding the latter in any one of a plurality of positions.

9. A shoe repair machine comprising, in combination, a frame, a drive shaft, a driven shaft carrying a series of axially spaced shoe repairing devices thereon, means mounting said shafts in parallel spaced apart relation on said frame, an endless belt extending between said drive and driven shafts operatively connecting the two together, a fixed member, a rotatable member journaled on said fixed member, a pulley wheel eccentrically journaled on said rotatable member in position for the endless belt to pass over the rim thereof, a control handle on said rotatable member adapted to rotate the same and swing said pulley wheel through an arc for varying the tension of the endless belt, one of said members having an arcuate series of recesses on the face thereof opposite the other member, and an element carried by said other member yieldingly urged toward said series of recesses and engaging therein to releasably hold the rotatable member in any one of a plurality of positions it may be rotated by said control handle.

10. A shoe repair machine including, in combination, a drive shaft, a driven shaft carrying a shoe repairing device fixed therein for rotation therewith, an endless belt extending between said drive and driven shafts operatively connecting the two together, dust collecting means including a hood partially enclosing said shoe repair device and suction producing means communicating with the hood for withdrawing the particles created during the operation of the shoe repair device into the hood, a control mechanism for varying the tension of said endless belt and thereby vary the speed with which said drive shaft rotates said driven shaft, and means to said dust collecting means and operable to vary the operation of the latter in response to the movements of the control mechanism.

11. A shoe repair device comprising, in combination, a frame, a drive shaft, a driven shaft having a shoe repair device fixed thereon for rotation therewith, means mounting said shafts on said frame in spaced parallel relation, an endless belt extending between said shafts operatively connecting the two together, dust collecting means carried by said frame including a hood partially enclosing said shoe repair device and suction producing means for communicating with the hood for withdrawing the particles created during the operation of the device into the hood, a valve member movable either to a position to cut off the communication between said suction producing means and said hood or to a position opening the communication therebetween, a control mechanism for varying the tension of said endless belt including an eccentrically mounted idling pulley wheel over the rim of which the belt passes, a handle for bodily moving the pulley wheel, and an operative connection between said handle and said valve member adapted to shift the latter to either one of said positions upon movement of the handle.

SOTER, TAVANTZIS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 822,154 Rogers May 29, 1906 881,086 Stevens Mar. 3, 1908 1,118,639 Doidge Nov. 24, 1914 1,480,601 Dobyne Jan. 15, 1924 1,715,595 Gouldbourn June 4, 1929 2,006,953 Klos July 2, 1935 2,167,310 Orgitano July 25, 1939 2,210,005 Ray Aug. 6, 1940

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