US1148736A

US1148736A - Pieced-stay-joining machine.

Info

Publication number: US1148736A
Authority: US
Inventors: Frederick L Anderson
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1911-11-20
Filing date: 1911-11-20
Publication date: 1915-08-03
Anticipated expiration: 1932-08-03

Description

F. L. ANDERSON. D STAY JOINING MACHINE.

APPLICATION FILED JAILZS 1910- RENEWED NOV. 20, 19H.

PIECE 2 SHETS-SHEET I.

Patented Aug. 3, 1915.

F. L. ANDERSON. PIECED STAY JOINING MACHINE. APPLICATION FILED IAN-25, I910- RENEWED NOV-L191!- Patented Aug. 3, 1915.

2 SHEETSSHEET 2- said bracket 24 and a collar 26 on the rod.

bracket 24 when said rod is. to act as an adjustable stop to limit the forare mounted on the bed, directly inthe' rear.

the ,length of the piece" to be severed, the;

length of the piecewhi'ch will be severed being indicated by the position of the nut A nut 27 is threaded on the;extreme end of the rod, said nut being ada ted to engage awn forward ward swinging of the bar 18 and thus vary 27 on a scale 24. v

A cam 28 is mounted on the carrier 4, and a roll 29 is rotatably mounted on the bar 18 in position to engage said cam, said spring 25. acting constantly to hold the rod against said cam in all vertical positions of the carrier. The upper portion of the cam 28 is inclined 'so that it extends upwardly '29 is adapted to move when the carrier is in its highest pr normal position.

A work-supporting bed 's provided directly beneath the head 5, which consists of 2. rubber block 30 set in.a recess formed in the table of the machine.

In the power-driven device of my said former patent I found it necessary to employ a yielding pressing member to enable the reciprocating presser or plunger to press the severed piece against the stay piece for a sufficient length of time to cause the tape to adhere to the stay-pieces. However, with the treadle-operating machine herein-described the presser-head may be held in engagement with the work as long as is necessary, so that it is only necessary to provide a slightly resilient bed, adapted .to yield sufficiently, when pieces of unequal thickness are ,connected, to permit pressure' bed. herein shown, however, the accurate po sitioning of the pieces beneath the presserhead is unnecessary.

A foot 32 is mounted to reciprocate ver-. tically in a bracket 33, mounted on the table ofthe machine, said bracket being provided with a spring-pressed friction-plate 34, which is adapted to hold said foot 32 in any vertical position to which it may be moved.

A bracket 35 is mounted on the carrier 4;

and a rod 36 is connected to said foot' 32 'vionsly been placed on the bed 30. As the ered portion against said pieces, so that the chamber 4" in the carrier, said rod having a spring-buifer 37 at its lower end, which rests on the upper end of the foot 32, and a 1 head 38 at its dipper end, whichretains a spring-butler 39. f

A pair of vertically-projecting fingers 40.

of the shear-blade 16, said fingers terminating slightly below the level thereof, andi -js the lower end of said foot 32 is provided; with a projecting toe 32, which is disposed.

its front. en ,is adjustably mounted on the bed in the rear of the'fing ers 40, said teeth being slightly upturnedv and beveled on their under sides, so that when the tape is pressed downon said fingers 40, by said toeportion 32', said teeth will be caused to pierce the tape to a slight extent. I

The operation of the above-described device is as follows: The bar 12 is drawn downwardly by a treadle, depressing the carrier 4, ascdescribedfabove, and, as said carrier is moved downwardly, the inclined portion of the cam 28 will-be carried oppo. site the roll 29, so that the spring. 25 is per- 'foot 32 will at that time be" in raised position, and the gripping-dog 21, on the lower end of the bar 18, willdraw the tape 13' i from thef reel 14, over the moistening-roll 15, and push the end-portion thereof, assuming that the tape has been severed by the shear in the previous operation, beneath said foot, over the shear-blade 16, into position over the stay-pieces which have precarrier 4 descends, the shear-blade 17 will sever a portion of the tape of sufficient length to extend across the pieces to be connected, and the head 5 will-press said sevtape will be caused to. adhere firmly thereto. As the carrier descends, the-bracket 35 will engage. the upper end of. the foot 32, through the medium ofthes ring b'ufler 37, so that the tape will .be clamped 116 against the fingers 40, the spring 37- being' adapted to yield to a suflicient extent to compensate for anyvariations in thickness of the pieces to be connected, or 'ior inaccuracies of adjustment," When the carrier 4 is again raised, the friction-plate 34' will hold the foot 32 in a depressed position din ing the greater portion of the lifting move ment of the carrier, during which time the tape will be firmly clamped against the bed. As the carrier is lifted, the cam 28 will push back the swinging-bar 18, so that'the griping-dog '21 will ride over the/ta e," as itis eld irom being drawn back by'rt '0 too 32'. The parts are so timed that, when the' u'o' higher end of the inclined portion of the cam 28 engages the roll 29, so that the bar 18 is swung rearn'ardly '3 its full extent. the bracket 35 will engage the spring 39 and draw the foot 32 upwardly out of engagement with the tape. Atihe end of the upward movementof the carrier, the depressed porfion 28 of the cam will be oppo site the roll 29, so that she spring will iorce'said roll into said recess 28 and thus swing forward the bar 18, causing a slight forward feeding of the tape, the purpose of which is as follows: If the tape, after having been pressed firmly, against the. lingers 40 by the foot 32., were permitted to remain in that position for an appreciable length of time, it would adhere to the bed, so that, when the next operarion was performed, the feeding means would be prevented from pushing the tape forwardly, but, as the slight forward feeding movement, above re ferred to, talves place at the end of the operation, the portion of the tape which was pressed against the fingers 40 will be moved out of engagement therewith before ii; has time to adhere, so that it will then rest lightly on the edge of the shearblade 1G and will not adhere thereto. even if permittted to remain in this position until the cement thereon becomes dr v. As the area of +he surface at the ends of the lingers 40 is small, there is but slight possibility that the tape will adhere thereto to an appreciable extent before the slight feeding motion. above described, takes place. As the plate .41 is so adjusted lhat its-teeth vill pierce the tape to a slight extent. when the foot 32 presses the latter against the bed, if the foot should not securely hold the tape, or it" the foot should be moved out of engagement with the tape before the rearward swinging movement of ihe bar 18 was finished. said teeth would prevent the tape from being drawn back by the gripping-dog 21, thereby obviating the possibility of irregular feeding of the tapel It will be apparent that the distance which the tape is fed on each recipro 'ation of the carrier, and, therefore. the length of the severed piece may be readily varied by merely adjusting the nut :27, and the position to which it should be adjusted for stays of different widths may be readily deiermined by its position with relation to the scale 24;.

I claim: o

1. In a stay-joining machine. means for severing and pressing a piece of adhesive tape against the work, means for intermittently feeding the tape to said severing and pressing means, comprising a gripping device, adapted to engage the tape to feed the same when moved in one direction. holding means for engaging the tape during the re tracting movement of said gripping device,

\vork-siipporiing member and a pr means for releasing said holding means from the tape at the end of said movement, and means for thereafter moving said gripping device to free the tape from said holding means, substantially as described.

2-. In a slaw-joining machine, means for severing and pressin a piece of adhesive tape against the Work, means for intermittently feeding the iape to said severing and pressing means, comprising a gripping device adapted to engage the tape to feed the same when moved in one direction. means for holding the tape during the retracting movement of said grip 'iing device, and means for slightly advancing the tape after the feeding'operation has been finished to free the same from said holding means. substantially as described.

3. in a stay-joining machine, a ivorlosupporting member and a pressing member movable to and from ihc same. a gripping device movable to and from said members to feed an adhesive tape thereto and adaplml to grip the tape on iis feeding movement and to become disengaged iherel'rom on iis retracting movement. a clamping device for holding he tape during said retracting movement and adapted to be released therefrom at the end of said movement. and

means for advancing the gripping device to scribed.

4. In a stay-joining machine, having a me member movable lo and from the same. a grip 'ling device movable to and from said members to feed an adhesive lape thereto and adapled to grip the tape on its feeding movement and lo become disengaged there from on its retracting movement a clamping device for holding the tape during said retracting movement and adapted to be re leased therefrom at the end of said movement, a spring normally acting to move said gripping device to perform the feeding op- \vork-supporting menmer and a pressing.

member reciprocally movable to and from the same, means for inlermiitcnl lv feeding a tapeto said members. comprising a gripping device adapted to engage the tape to feed the same as the pressing member is moved tonard the supporting member, and to be disengaged from the tape on the re tracting movement of said pressing member,

cration. mains, actuated by said pressing a tape-clamping device supported'independently of said pressing member and movable -thereby to engage the tape at the end of the feeding movement thereof, means for holding said clamping device in engaging position during the first portion of the retracting movement of said pressing member,and

means, actuated by said pressing member,

during the latter portion of said retracting movement, for moving said clamping device to disengage the tape, substantially as described.

6. A stay-joining machine having, in combination, means for pressing a severed piece of adhesive tape against the work, mechanism to feed the adhesive tape, means to' sever said piece from said tape prior to the pressing operation, and means for imparting to said tape a slight forward movement after the severing operation and prior to the succeeding feeding movement.

7. A stay-joining machine having, in combination, means for pressing a severed piece of adhesive tape against the work, means I for severingsaid piece, mechanism for feeding the adhesive tape prior to the severing operation, and meansvactlng through said feeding mechanism for imparting to said tape a slight movement to disengage the tape from said severing means prior to the succeeding feeding movement.

8. Astay-j oining machine having, in combination, means for pressing a severed piece of adhesive tape against the work, means in-' cluding a stationary and a movable member for severing said tape with the adhesive surface of the tape in contact with the stationary member, mechanism for feeding said tape a predetermined distance between the feeding movement is started.

severing operations, and means for movingilo said tapeslightly with respect to said statlonary severing member after the movable;

severing member has been moved away from the stationary member and before the next f feeding movement is started. 4t

9. A stay-1 oimng machine'having, in combination, means for pressing a severed piece of adhesive tape agalnst the work, means 'ineluding a stationary and a movablemember I for severing said tape with the adhesive sure;

face of said tape in contact with the stationary member, mechanism for feeding said tape a predetermined distance between'the' severing operations, .and means acting through said feed mechanism formovinig fili said tape slightly with res ect to'saidstationary severing member a r the=inovable severing member has been moved away from I the stationary member and before the next 10. A stay-joining machine having, in @015;

bination, means for severing a piece of tape,

of two subscribing witnesses. 1,

FREDERICK L. ANDEBSOKc'} Witnesses:

L. H. HARRIMAN, H. B. DAVIS.