US1882067A - Machine for use in the manufacture of shoes - Google Patents

Machine for use in the manufacture of shoes Download PDF

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US1882067A
US1882067A US430048A US43004830A US1882067A US 1882067 A US1882067 A US 1882067A US 430048 A US430048 A US 430048A US 43004830 A US43004830 A US 43004830A US 1882067 A US1882067 A US 1882067A
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shoe
teeth
rest
relation
toe
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US430048A
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Fred C Eastman
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United Shoe Machinery Corp
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United Shoe Machinery Corp
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    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43DMACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
    • A43D21/00Lasting machines
    • A43D21/12Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last
    • A43D21/127Lasting machines with lasting clamps, shoe-shaped clamps, pincers, wipers, stretching straps or the like for forming the toe or heel parts of the last with wipers

Description

F. c. EASTMAN MACHINE FOR USE IN THE MANUFACTURE OF SHOES Oct. 11, 1932.
Filed Feb. 20, 1950 2 Sheets-Sheet l Oct. 11, 1932. F. c. EASTMAN MACHINE FOR USE IN THE, MANUFACTURE OF SHOES Filed Feb. 20, 1950 2 Sheets-Sheet 2 Patented Oct. 11, 1932 :FRED C. EASTMAN, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO TJ'1\TlZ'llilD SHOE MA- GHINERY oonronnrron, or rerun-son, NEW JERSEY, A oonronnr-ron or NEW JERSEY MACHINE-FOR USE IN THE MANUFACTURE OF SHOES Application filed February 20, 1980. SerialNo. 430,048.
This invention relates to machines for use in the manufacture of shoes. The invention is herein illustrated in its application to a machine for lasting the toes of shoes, but
it is to be understood that .it is not limited to machines of that particular class.
In shoe machines it is sometimes important that the shoe be firmly supported in a definitely determined relation to the means lo which operates thereon or against yield in response to the pressure applied by such operating means. This is true, for example,
of some types of toe-lasting machines, in
which it is necessary for the best results that the shoe be firmly supported in a definitely determined relation to the plane of the toe wipers against the pressure applied by the wipers on its bottom face, and also, it may A be, against the pressure of means utilized for my fastening the upper in lasted position. Such machines are sometimes provided, as herein illustrated, with a toe rest which is movable into position to clamp the forepart of a shoe against a shoe-positioning abutment and acts 5 thereafter as a support for the shoe against the pressure applied on its bottom face. It is an object of this invention, in one important aspect, to provide in a shoe machine m means for insuring that a shoe rest, after its movement into operative position, will be firmly maintained in that position. For controlling the toe rest of the machine herein shown, there is accordingly provided retaining mechanism comprising a member having a series of teeth thereon and a member arranged to act as a detent in abutting relation to some one of said teeth to hold the toe rest, together with means for insuring such a rela V tion between the detent and one of the teeth as to prevent any movement or yield of the toe rest in response tothe pressure applied to the shoe. More particularly, the constructi on shown comprises a series of ratchet teeth 4 which are movable with the toe rest, a pawl =i5- arranged to co-operate with the ratchet teeth, and'an eccentric supporting the pawl and movable in automatically determined time relation to the movement of the toe rest to impart to the pawl a movement lengthwise of the series of teeth to insure its hold-- ing relation'to one of the teeth; As illustrated, the machine includes a plurality of pawls controlled in that manner and arranged in staggered relation to reduce the amount of movement necessary to bring one of them into holding relation to the nearest tooth, but it is to be understood that the invention is not limited to the use of a plurality of pawls.
The novel features of the invention will 6d now be more particularly described by reference to the accompanying drawings and thereafter pointed out in the claims.
In the drawings Fig. l is a view partly in elevation and partly in section showing portions of a toelasting machine in which the invention is embodied v v Fig. 2 is a vertical section lengthwise of the shoe illustrating more in detail the relation of the shoe to its controlling means and to the lasting means; I
Fig. 3 is a perspective view illustrating more in detail the means for controlling two of the pawls; and v Fig. 4 is a view similar to a portion of Fig. 1 showing one of the pawls in its idle position. I
The invention is herein illustrated as applied to a toe-lasting machine having means for wiping the toe portion'of the'upper into lasted. position and means for driving a plurality of fibre pegs through the upper and the insole around the toe to fasten the upper in lasted position, as fully shown and described in a copending application of F. N. LaChapelle and F. C. Eastman, Serial No. 430,071 filed on February 20, 1930. Only such portions of the general organization of the machine as it is necessary to refer to for an understanding of this invention are herein shown and will be described in detail.
The machine includes in its general organization toe-embracing wipers 10 which are advanced and closed to wipe the margin of the upper around the toe inwardly over an insole on the last, and upper-fastening mechanism which is moved into operative position in front of the edges of thewipers, as illustrated in Fig. 2, this mechanism including a member 12 which serves as a guide for a plurality of fibre pegs a and for a plurality of drivers 14 which are operated to punch holes through'the upper and the insole and to drive the pegs into the holes to fasten the upper to theinsole, Co-operating with the wipers to shape the upper around'the end and the sides of the toe isa toe band, 16.
.The position of thelast and its shoe materials inrelation toothe lastingvmeans is de termined, as herein illustrated, in thesame manner andby meansof the same general character as disclosed in Letters Patent No.
1,674,060, granted on June 19,1928, upon an application of A. F. Pynn For this purpose the machine is provided gwith a fixed arm 18 on which is secured a shoe-positioning abutment comprising a plate 20' provided with three pins 22, only two of which are- 20 visible in the drawings, these pins being arranged to project-through holes in the insole Z) and into sockets formed in metal bushings 24 which are seated in the last. These-pins accordingly determine the position of the last and shoe with respect to lengthwise or lateral bodily movements and with respect to lateral swinging movement, and in co-operation with the bu'shings24 they also determine the plane in which the bottom face of theinsole is presented 'for the lasting operation, the lower end faces'of the pins engaging the bushings forthis purpose, all as fully disclosed in the above mentioned Letters Patent. y t
" For maintaining the last and :shoe in the position determined by the pins 22' and for supporting it against pressure, applied on the bottom of the shoe in the lasting operation, the machine is provided with a toe rest 26 which has a facing of felt or like material 28 suitable for engagement with the shoe up-V per on the top of the forepart, this toe rest being mounted on the upper end of a rod 30' which is vertically movablein an'upper fixed bearing 32 and'in a lower bearing .34 formed in'a bracket'36 which is fasten the-frame of the machine. It will be understood that initially the toe rest 26 isin' a lower "position and its supporting rod 30; there is provided a sleeve 38 which is slidingly movable on the rod 30 and acts through" a spring &0 in en gagement at its upper end with a collar 42 fast on the rod to raise the rod andthe toe rest and to force the toe rest yieldingly against the shoe. The sleeve 38 bears at its upper end on a collar 43 sli'dingly" mounted on a'reduced portion of the rod 30fland engaging the lower end of the spring 40, this V collar being arranged'to engage a shoulder lon the rod when the parts are instarting under a'substantial amount of compression between the two collars 42 and 4L3. The
sleeve 38 is connectedby links 45, only one of which is shown in the drawings, to the forked endof a lever 46 pivoted at 4:8 on the frame of the machine, and the other end of this lever is connectedby a link 50 to a crank .pin 52 carried bya gear wheel 54. which is fast onv a'fpo'Wer-Operatedshaft 56., The
shaft 56 is operated through clutch-controlled mechanism notshown herein but fully disclosed in thecopending LaChapelle and Eastman application, the arrangement being such that at eachv actuation of the clutch the shaft is turnedthrou gha half rev- 'olutiona Accordingly, upon one actuation of.
the clutch, the toe rest 26 ismoved upwardly into supportingengagement with the shoe,
and upon a second actuation of the clutch,
after the lasting operations have been performed, it is returned to its starting position.
It willbe evidentthat order to secure throughout the lasting operation the full advantage of the exact positioning of the last and shoe'in relation to the plane of the wipers by the pins 22 and the bushings 24, it is necessary to hold the work firmly up in the position determined by the ends of the pins against any tendency for it to tip in response to the pressure applied by the wipers on the shoebottom, anditis also necessary in a machine of the character illustrated that the shoe be supported firmly against downward yield in the operation of theupper-fastening mechanism. There is accordingly provided means for holding the, rod" 30 positively against any-downward movement fromthe position to which it is raised in forcing the toerest againstthe shoe; For the'purpose 1 in view there is secured on the lower end por tion of the rod30 a member 58 provided with a series of downwardly facing ratchet teeth 60 arranged to c-o-operate with a plurality of detents orpa-wls 62 supported on. the fixed bracl:et 36. The. member 58 is mounted on a reduced 'portion of the rod 30 so that it bears at'its upper end against a shoulder on' the rod, and it issecured in place by setscrews 64. In the construction shown the paWlsH62 are four innumber, arranged in upper. and lower pairs, and they are also arranged in staggered relation so that in any position assumed bythe rod 30 at the. end of its movement to carry the toe rest into supporting engagement with shoes of different sizes, some oneof the pawls will be positioned in fairly close relation to the lower end face of one of the ratchet teeth. In order still further to insure against the possibility of any lostmotion between the pawls and the ratchet {teeth such as to permitVdo-Wnwardyield of the toe rest when the pressure is applied on the botby this invention, means for controlling the pawls in such manner as to insure that one of them will be positioned in holding relation to one of the ratchet teeth to support the toe rest against any downward yield. F or the purpose in view the two pawls of each upper and lower pair are swiveled on an eccentric 66 which is a part of a rock shaft 68 mounted inbearings'in the bracket 36. Each of the two pawls is connected by a coiled spring 70 to one end of the head of a T-shaped pin 72 which is fast in the shaft 68 and projects through a slot 74 formed partly in the side of the hub of each pawl. The springs 70 thus serve is yielding connections through which the pawls are swung toward and from the ratchet teeth by turning movements of the shaft 68, and the slot 7 4 permits the shaft to turn relatively to the'pawls after they have been swung into engagement with the ratchet teeth. Each of the shafts 68 is provided with a crank arm 7 6, and these two crank arms are pivotallyconnected to a pair of links 78, so that the two shafts are turned in unison. The links 78 heir upper ends are pivotally connected to the lower end of a rod 80 which eX- tends upwardly through a thimble 82 slidingly mounted on the rod, this thimble being loosely mounted in an opening formed in a plate 84 secured to an arm 86 which projects from the sleeve 38' and having on its upper end a flange 87 for engaging the plate 84. Between the thimble 82 and a collar 88 fast on the upper end of the rod 80 is a spring 90. Below the thimble 82 is a collar 92 which is fast on the rod 80.
When the parts are in starting positions with the toe rest lowered and the sleeve 38 positioned as indicated in Fig. 4 and by dotted lines in Fig. 1, the thimble 82 rests upon the collar 92 with the spring 90 under some com pression and the plate 8 is positioned considerably below the flange 87 on the upper end of the thimble 82. At that time the rod 80 is in such a position that the pawls 62 are swun outwardly away from the series of ratchet teeth 60, as indicated in Fig. 4, the pins'72 engaging the hubs of the pawls at the lower ends of the slots 74. When the sleeve 38 is moved upwardly by the shaft 56 to carry the toe rest 26 into position to clamp the last against the pins 22, the plate'84 first slides upwardly along the thimble 82 without affecting the positions of the pawls 62. Substantially at the time when the spring begins to yield in response to the upward movement ofthe'sleeve 88, the plate 84 engages the flange 87 of the thimble 82 and acts through the spring 90 to lift the rod 80, thereby turning the rock shafts 68. As the shafts 68 are thus turned, the pawls 62 are. swung into operative relation to the ratchet teeth through the yielding connections provided by the springs 70, the eccentrics 66 being turned with the shafts; and in thelatter part of the turning'movements of the shafts the eccentrics a-re carried tosuch positions that they impart to the pawls upward movementslengthwis of the series of ratchet teeth thus "insuring that the pawl which is nearest to the lower face of a ratchet tooth will becarried into holding relation to the tooth to serve as an abutment to prevent any clownward movement of the rod 80. In any further upward movement of the sleeve 38 that may take place after a pawl has thus been seated against'a ratchet tooth the spring 90- will yield, the thimble 82-being carried up wardly away from the collar 92, as indicated in Fig. 1. It will be understood that after one of the pawls has thus been seated firmly against one of the ratchet teeth, itscontrolling eccentic 66 is in such a position as to act as a substantially positive abutment to p re vent any downward movement of the pawl in response to the pressure of the shoe on the toe rest 26. Insurance is thus afforded that the shoe will be maintained firmly in the position determined by the pins 22 and will be supported against any downward yield in response to the pressure applied on its bottom face in the overwiping and upper-fastening operations. It will be understood that in the return of the parts to starting positions the pawls 62 are swung outwardly away from the ratchet teeth 60, so as torelease the rod 30 for downward movement to carry the toe rest away from the shoe- Novel features of the herein disclosed retaining mechanism in its more general aspects are claimed in a divisional application, Serial No. 553,328, filed on July 27, 1931. V
In the appended claims the term shoe is frequently used for convenience to designate inclusively both the last and the shoe materials thereon.
Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:
1. In a shoe machine, the combination with means for operating on a shoe with pressure thereon, of-a shoe rest movable into position to support the shoe against said pressure, and means for holding the shoe rest against move ment from that position in response to the pressure applied to the shoe, said holding means comprising a member having a series of teeth thereon, a cooperating member ar-' ranged to act as a detent in abutting relation to some one of said teethto hold the shoe rest, one of said members being movable with the shoe rest relatively to the other member, and means for effecting relative movement of said members in a direction lengthwise of the series of teeth after the shoe rest has arrived substantially in its supporting position to insure a cooperative relation between the, detent member and one of said teeth.
2. In a shoe machine, the combination with means for operating on a shoe with pressure r se v mounted, "and means for turning said eocen-- thereon, of a shoe restl'movabl into position means comprising a member movable with the-shoe rest and having a. seriesf'or" teeth thereon, a cooperating memberzarranged to act as a detent 1n abuttingrelation to some oneof said teeth to hold the shoe rest, and
means for moving said detent member in a direction lengthwiseof the series of teeth after the shoe rest has arrived substantially invits supporting position toinsure the positioning of the detent member in holding relation to one of said teet i I c 3. In the shoe machine, the combination with meansfor operatingon a shoe with pressure thereon, of a shoe rest movable into position to support theshoetagainst said pressure, and means for holding the shoe rest against movement from that position in re sponse to the pressure applied to the shoe, said holding means comprising a member having a series of teeth thereon, acooperat ing member arrangedto act as a detent-in abutting relation to some one of said teeth to hold the shoe rest, one of said'me-mbers be-- ingmovable with the shoe rest relatively to l the other member, and means for imparting to said other memberin automatically determined time relation to the movement of the shoe resta movement in a direction lengthwise of the series of teeth to insure the positioning of the detent member in holding relation to one of the teethi e 4. In a shoe machine, the combination with means for: operating on a shoe with pressure thereon, oi-a shoe rest movable into position to support the-shoe against said pressure, and means for holding the shoe rest against movement from that position in response to the pressure applied to the shoe, said holding means comprising a member'having a series 415 of teeth thereon, a cooperating member arranged to act as a detent in abutting relation to some one of said teeth to hold the shoerest,
, one of said members being movable with the shoe rest relatively to ,the other member, aneccentric on which said detent member is tric after the movement of the shoe rest has been substantially completed to impart to the to supportthe shoe against said pressure, and means for holding the shoe rest against movement from that position in response to the pressure applied to the shoe, said holding means comprising amember movable with the shoe rest and having a series of ratchet relation to one of the teeth.
teeth thereon, ;a pawlarranged to cooperate withsome one of said teeth to hold the shoe,
rest, an eccentricv on which said pawl is mounted, and means for turnmg sald-eccentrio to imparttojthepawl movement in a direction. lengthwise ofthe series of teethto' insure its holding relation to one of the teeth. '6. In a shoe machine,the combination with ashoe-positioning-z abutment, of a shoe rest movable into positionto clamp a-shoe against said abutment, and means forlocking the shoe rest- .again'st reverse movement .from clamping position, said locking means comprising a member having a series'of teeth thereon,'a cooperating member arranged to act as a detent in abutting,relation to some oneof, said teeth to hold the shoe rest, one of said members being movable with the shoe rest relatively to vthe other member, and means for efifecting'relative, movement of said members'after theshoe rest has arrived sub-,1
stantially in clamping positionto insure the positioning of the detent member in holding relation to one of said teeth.
7. In a shoe machine, the combination with a shoe-positioning abutment, ofa-shoe rest movable into position to clamp a shoe against said abutment, and means for locking the shoe rest against reverse movement from clamping positiom-saidlocking means comprising a member having 'a series of teeth thereoma cooperating member arranged to act as a detent inabutting relation to some one of said teeth to holdthe shoe rest, one of said [members being movable with the shoe rest relatively to the other member, and means formoving said other member in a direction lengthwise of the series of teeth after the shoe rest has arrived substantially in clamping position to insurethe positioning of the detent member-in'holding relation to one of said teeth; V '8. In a shoe machine, the combination with ,a shoe-positioning abutment, of a shoerest prising a member having a series of teeth thereon, a cooperating member arrangedto act as a detent in abutting relation to some one of said teeth to hold the shoe rest, one
of said members being movable with the shoe rest relatively to the other member, and means for moving the shoe rest into clamping position and for eflecting thereafter in auto-. matically determined time relation'to the movement of .the shoe rest a movement of said other member in a direction lengthwisev of the series of teeth to insure the positioning of the. detent member in holding 9; In a shoe machine, the combination with a shoe-positioning abutment, of a shoe rest movable into position to clamp a shoe against and having a series of ratchet teeth thereon, a pawl arranged to cooperate with some one of said teeth to hold the shoe rest, and means for imparting to said pawl movement in a direction lengthwise of the series of teeth to insure its holding relation to one of the teeth.
10. In a shoe machine, the combination with a shoe-positionin abutment, of a shoe rest movable into position to clamp a shoe against said abutment, and means for look ing the shoe rest against reverse movement from clamping position, said locking means comprising a member movable with the shoe rest and having a series of ratchet teeth thereon, a pawl arranged to cooperate with some one of said teeth to hold the shoe rest, and means for moving the shoe rest into clamping position and for imparting to said pawl in automatically determined time relation to the movement of the shoe rest a movement in a direction lengthwise of the series of teeth to insure its holding relation to one of the teeth.
11. In a shoe machine, the combination with a shoe-positioning abutmen of a shoe rest movable into position to clamp a shoe against said abutment, and means for lock-- ing the shoe rest against reverse movement from clamping position, said locking means comprising a member movable with the shoe rest and having a series of ratchet teeth thereon, a pawl arranged to cooperate with some one of said teeth to hold the shoe rest, an eccentric 011 which said pawl is mounted, and means for moving the shoe rest into clamping position and for effecting in automatically determined time relation to the movement of the shoe rest a turning of said eccentric to move the pawl in a direction lengthwise of the series of teeth into holding engagement with one of the teeth.
12. In a shoe machine, the combination with a shoe-positioning abutment, of a shoe rest movable into position to clamp a shoe against said abutment, and means for locking the shoe rest against reverse movement from clamping position, said locking means comprising a member movable with the shoe rest and having a series of ratchet teeth thereon, a pawl arranged to cooperate with some one of said teeth to hold the shoe rest, an eccentric on which said pawl is mounted, a member movable to carry the shoe rest into clamping position and thereafter further movable against yielding resistance, and a yielding connection between said member and the eccentric to cause said member in its further movement to turn the eccentric and thereby impart to the pawl movement in a direction lengthwise of the series of teeth to position it in holding relation to one of the teeth. 1 I I 13.1n a shoe machine, the combination with a shoe-positioning abutment, of a shoe rest movable into position to clamp a shoe against said abutment, and means for locking the shoe rest against reverse movement from clamping position, said locking means comprising a member movable with the shoe rest and having a series of ratchet teeth thereon, a pawl arranged to cooperate with some one of said teeth to hold the shoe rest, and means for moving said pawl into operative relation to the series of teeth and for also moving it in a direction lengthwise of the series of teeth to insure its holding relation to one of the teeth.
14. In a shoe machine, the combination with a shoe-positioning abutment, of a shoe rest movable into position to clamp a shoe against said abutment, and means for look ing the shoe rest against reverse movement from clamping position, said locking means comprising a member movable with the shoe rest and having a series of ratchet teeth thereon, a pawl arranged to cooperate with some one of said teeth to hold the shoe rest, a rotatable shaft provided with an eccentric on which the pawl is mounted, means carried by said shaft for positioning the pawl initially out of operative relation to the series of teeth, and means for turning said shaft to move the pawl into operative relation to the teeth and to cause said eccentric also to move the pawl in a direction lengthwise of the series of teeth to insure its holding relation to one of the teeth.
15. In a shoe machine, the combination with means for operating on the forepart of a shoe with pressure on its bottom face, and an abutment for determining the relation of the bottom of the shoe to said operating means, of a toe rest movable into position to clamp the forepart of the shoe against said abutment, and means for locking said toe rest against reverse movement from clamping position in response to the pressure applied to the shoe, said locking means comprising a member having aseries of teeth thereon, a cooperating member arranged to act as a detent in abutting relation to some one of said teeth to hold the toe rest, one of said members being movable with the toerest rela tively to the other member, and means for moving said other member in a direction lengthwise of the series of teeth after the toe rest has arrived substantially in clamping position to insure the positioning of the detent member in holding relation to one of said teeth.
16. In a shoe machine, the combination with means for operating on the forepart of a shoe with pressure on its bottom face, and an abutment for determining the relation of the bottom of the shoe to said operating means,
of atoe rest movable into position toolamp the forepart of the shoe against said abutment, and means for locking said toe rest against reverse movement from clamping position in response to the pressure applied to the shoe, said lockingmeans COIIIPIISHIQ a member having aseries of teeth thereon, a
- cooperating member arranged to actas a detent in abutting relation to someone of said teeth to hold the toe rest, one of said members being movable with the toe rest'relatively to the other member, an eccentric on which said detent member is mounted, and means for "turning said eccentric to move the detent member in a direction lengthwise of the seriesof teeth after the toe rest has arrived substantially in clamping position to insure the positioning of the detent member in holding relationto one of said teeth.
17 In a shoemachine, the combination with means for operating on the forepart of a shoe with pressure on its bottom face,
and an abutment for determining the relation of the bottom of theshoe to said operatingameans, of a toe rest movable into position to clamp the forepart of the shoe against said abutment, and means for locking said toe rest against reverse 7 movement from clamping position in response to the pressure applied to the shoe, said locking means comv prising a member movable with the toe rest and having a series of ratchet teeth thereon, a pawl arranged to cooperate with some one of said teeth to hold the toe rest, and'means for moving said pawl in a direction lengthwise of the series of teeth to insure its holding relation to one of the teeth.
p 18. In a shoe machine, the combination with means for operating on the forepart of a shoe with pressure on its'bottom face, and an abutment for determining the relation of the bottom of the shoe to said operating means, of a toe rest movable into position to clamp the forepart of the shoe against said abutment, and means for lockingsaid toe rest against reverse movement from clamping position in response to the pressure applied to the shoe, said locking means comprising a member movable with the toe rest and having a series of ratchet teeth thereon, a pawl arranged to cooperate with some one of said teeth to hold the toe rest, an eccentric on which said pawl is mounted, and means for moving the toe rest nto clamping position.
and for turning said eccentric in automatical- 1y determined time relation to the movement ofthe toe rest to force the pawl into holding relation to one of said teeth.
Intestimony whereof I have signed my name to this specification. 'T
- FRED EASTMAN.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733460A (en) * 1956-02-07 macdonald

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733460A (en) * 1956-02-07 macdonald

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