US1049474A - Tack pulling and resetting machine. - Google Patents

Description

J. B. HADAWAY. TACK PULLINGl AND RESETTING MACHINE. Y APPLICATYION FILED APRS, 1911. 1,049,474. Patented @11.21913 4 SHEETS-SHEET'I.

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TACK P'ULLING AND RESETTING MACHINE. APPLICATION FILED APR.8, 1911.

1,049,474. Pan-enne@ Jan. 7, 1913.

4 SHBETS-SIIBET 2.

J. B. HADAWAY.

TACK PULLING AND RESETTING MACHINE.

APPLICATION FILED APRS, 1911.

1,049,474, Patented Jan.7,1913.

4 SHEETSMSHBBT 3.

l J. B. HADAWAY. TACK PULLING AND RESBTTING MACHINE. APPLICATION FILED Arma, 1911.

Patented Jan. 7, 1913.

4 SHEETS-SHEET 4.

UNITED/STATES PATENT, OFFICE;-

JOHN B. HADAWAY, 0F SWAMSCOTT, MASSACHUSETTS, ASSIGNOR TOVUNITED SHOE MACHINERY COMPANY, 0F PATERSON, NEW JERSEY, A CORPORATION 0F NE TACK PULLING AND RESETTING MACHINE.

Specification of Letters Patent.

Application filed April 8, 1911. Serial No. 619,736.

To all lwhom it may concern.'

Be it known that I, JOHN B. HADAWAYa citizen of the, United States, residing at Swampscott, in the county ot' Essex and State of Massachusetts, have invented certainv new and useful Improvements in'Tack Pulling and Resetting Machines; and do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to tack pulling and resetting machines, and more particularly to that type of machine which is employed for preparing lasted boots and shoes for the sewing operation. Machines of this general type are employed for removingv the side lasting tacks from a shce and inserting in'place' thereof:l a less number of holding tacks. These machines are arranged to remove thelasting tacks and insert the 'requisite number of holding tacks with a single mani ulation of the shoe.

The 'principal o ject of the present inv vention is to improve the 'construction and mode of operation with a consequent in crease inthe eiiciency, of machines of this general character.A v

A further obj'ectof the invention is to enable the lasting tacks 'to be properly positioned With relation to the tack pulling devices and removed from theshoe, and the holding tacks inserted Without varying the lateral inclination of the shoe.

A still further object of the invention is to provide an improved and simplified tack pulling mechanism which is capable c-f a high speed of operation and which grasps and pulls the tacks with certainty and With the minimum amount of Wear and tear upon the operating parts of the mechanism.

Ther tack driving movements'and the tack pullin movements of the machine hereinafter escribed take place in planes inclined to one another, and in order to pull the tacks the shoe is resented to the tack ulling mechanism with the sole inclin Y laterally and substantially normal to the plane in which the tack pulling movement takes place.

One feature of the invention contemplates the provision of means operating in conjunction with the tack driving mechanism and arranged to deflectv t-he course of the tack sufficiently to insure that the tack is driven inlto the shoe substantially normal to the so e. the holding tacks directly Without the necessity of varying the lateral inclination of the shoe.

The tack pulling mechanism of the machine hereinafter described comprises a movable tack pulling jaw which moves forward over the tack to be pulled and then describes a loop in order to engage-the tack and pull the tack upon the backward stroke of the tool.

Al feat-ure of the invention contemplates the provision of a simple, compact and etticient construction for giving the desired movement tp the jaw consisting of a supporting arm for the jaw, a crank connected directly to one end of the arm, a supporting link for the arm connected to the arm intermediate its ends, and a tack pulling jaw dependentupon the free end of the arm and having its tack kengaging end directed toward the crank. In the preferred form of the invention which lis employed for remov ing' side tacks, a coperating stationary jaw is provided and the tack pulling movement takes place in a linear direction substan .tially parallel to the face of the stationary jaw. Broadly considered, however, this feature of the invention is not limited to the employment of the tack pulling jaw in combination with a coperating jaw, nor is it Patented Jan. 7, 1913.

This enables 'the operator to insert limited to the employment of a jaw for re`` moving side tacks, but contemplates the use of the jaw, if so desired, for the removal of insole. tacks or fasteners which are em` bedded in the material with their heads Hush With the surface thereof.

Still further features et' the invention comprise certain novel features of construction, combinations and arrangements of parts hereinafter described and claimed, the

rection of and 'passing 4plan View ofthe detector block an ving tacks.

advantages of which lwill be apparent to -those skilled in the art from the'following description.

In the accompanying drawings illustrating the preferred form ofthe invention; Figure 1 is a right-hand side elevation of the machine with a portion of the -inclosing cover removed, and illustrating the tack pulling mechanism within;-Fig. 2 is a front v,elevation of the machine with the upper ,pert-ion. of ,broken away; Fig. line-f-'of Fig. 1,

the tack driving lmechanism 3 is a section uponthe looking in the direction ofy the arrows, and illustrating a] plan view of the operating mechanism for the movable tack ullin jaw; Fig. 4 is a detufilillustrating t e tac pulling jaws in melf-engaging position; Figs. 5, 6 and 7 are details-illustrating various portions oflthe operating mechanism for the -movable tack pulling jaw; 8 is, a detail showing a plan view of the* front'portion throat fand spring plate attached .thereto broken away rom the machine; Figi) is a view vpartially diagrammatic, illustrating the .relation between of the movable tack pulling jaw `and the workingD -face of the fixed jaw; Fig. 10 is a detail illustratin a portion of the left-.hand side elevation o? the tack Adriving mechatack in dotted Aoutline with the point deflected; Fig. 11 is adeta-il view illustratingv a front elevation ot the tack driving and tack pulling mechanisms,

andshowing the relative longitudinal positions and arrangement of the two; 12 is a detail showing a longitudinal section of the tack driving nozzle takenV at right angles to the line the position of the tack after the'tack driving plunger has reached the limit ofrits i #tack is removed.

downward movement; Fig.'13 is a view partly in section showing the relative longitudinal positions ot the tack driving noz- F i 14 is a zle andthe tack pulling jaws;

tack deiiector removed from the machine;- and Fig. 153 is a viewl partially diagrammatic and illustrating the relation between the path of the movable tack pulling jaw and the deflected course which a tack follows when driven into the shoe.

The machine illustrated in thedrawings comprises a 'tack pulling mechanism and a tack' drivingmechanism arranged adjacent to one anot er' in the direction or line of eed `of the shoe so that the side of a Vlasted shoe can be moved continuously along -in one direction in order to remove the lasting tacks and insert-the proper number of hold- The tack driving plunger operates in a vertical plane extending in the dithrough the line of mechanism has a feed, and the tack pul ing of the tack receiving the path ot movement of feed. and illustrating4 order to deflect the'course of tack pulling movement in a plane inclined thereto.' In order to properly position'the lasting tacks andenable them to be readily y operated upon by the tack pulling mechanism, the shoe is conveniently the machine with-the sole substantially normal to the plane of the'tack pulling movement. As it isV desirable that the holding tacks shall beinserted normalto the sole without varying the lateral inclination of the shoe, a suitable 'deflector is provided by means of which the tack is driven in a plane substantially parallel to the `.pla-ne .of the tack pulling movement. As is -usual in this type of machines, the tack driving mecha- -nism is constructed and arranged to drive u depressing the treadle, as it is only desired to insert the holding tacks at certain isolated points along each side ot the shoe. The tack driving nozzle is arranged adjacent to the tack pulling mechanism and the side oiy the nozzle next tothe-tack pulling jaw forms a fixed onlv a single tack upon .abutment Awhich may be utilized as a stopte position the tack accurately between the tack pulling jaw. a

a suitable frame 1, and is A well known type of tack driving mechanism is employed `and isperated by a gear 5 mounted on the shaft 2. driving plunger to deliverl a sin le working blow operating tread e is depressed.4 As shown l clearly in Figs. v vclined to the line of feed of ythe shoe,

The mechanism is provided with a` tack 10l operating in the head 11' when the is 1n- Q'and 11, the plunger which presented to fisico

enables the holding tack to be driven' in close proximity Vtothe poi t at which the lasting The tacks are fed to the plunger down a Y tack' shall be delivered, at onetime beneath the plunger. In the tack, the

head 11 is providedwith an enlarged bore at Aits lowerend. which is adapted to receive a cylindrical projectionlft formed upon a d tlector block 15. The block isretained in position by a transverse pin 16 and is provided witha longitudinal bore formed therein througliwhich .the tack driving plunger passes so that the-deflector block forms in effect a tack driving nozzle; In order to seat the tack deflector therein, the deiiector block 15 is recessed vertically, as shown clearly in Figs. '12 and 13, and a deiector member 4i7 is pivotally supported in the recess. The de.- llector member 17, as shown clearly in Figs. 10 and 12,' is formed as a quadrant and is pivotally mounted at its central point. The

deflecter is caused to proiect into the bore et throat 12 and the eeding Themachine as a whole is mounted upon operated' by av 'main' drive. shaft 2 journaled in the bearings 3 and 4 formed upon the upper portion of the machine-trame.

Cit

the block l5 by a spring '18 which is held between the upper face of the detlector and a cross pin 19 mounted in the block l5. The spring-1S bears upon the upper face of the detlcctor member, 'which swings around its pivotal point, as Vshown clearly in -F ig. 10. The working t'ace of the detiector projects obliquely into the boreof the detlector block and is dished or hollowed out as shown clearly in Figli to center the point of the tack accurately in the bore. When the tack drops into the bore under the tack driving plunger, the pointv is deflected, as shown in Fig. 1Q, and the point at which the tack penetrates the work and the consequent angle at which the tack is driven, are'` thus governed` accurately. In order to limit the movementof the vdeleetor member 17 in either direction, the face 20' ot the block l5 is cut away, as shown clearly in Fig. 13,'and thc detlector member 17 isprovided with a laterally 'projecting portion 2l forming the shoulders 22 and which l'imit the niovement ot. the deflector member in its outward and inward positions respectively.,l The tack driving plunger is not arranged to force the tack completely into the shoe, but leaves the tack vprojecting slightly abovethe surface and int-o the tack driving nozzle, as shown clearly in Fig. l2. The tack deiector is at all times supporting the tack and there is no chance for the tack to be bent ortwisted out of t-he proper alineinent 4under the 'pressure t of the plunger.v

As stated previously, the tack driving nozzle andplunger .are positioned adjacent to the tack pulling mechanism and tbe side face24 of 'the nozzle is parallel to the tack pulling jaws and extends transversely of the-line of feed. By locating the tack driving nozzley in this manner, it is possible to utilize the face 24 as an abutment against 4which der to accurately position the tack between the tack pulling jaws. y

The tack pulling mechanism shown in thc illustrated embodiment of the invention comprises a tack pulling jaw and a"-stationary j aw cooperating therewith, the tack pulling i'noven'ient taking place in a linear direction substantially tack pulling jaw`irst moves forward over the tack to be' pulled, and then describes a loop in order to engage the tack and pull the tack upon the to the jaw by a simple and efficient actuating mechanism consisting of asupporting arm for the jaw, a crank connected` direct-ly toone end of the arm,4 and a supporting link for the arm connected to the arm intermediate its ends. In the preferred form of the invention, the jaw is fixed in the lower end of` a second arm pivoted centrally to the the tack may be moved in orf parallel to they work engaging surtace of the stationary jaw. The movable backward stroke of the tool." The desired movements are imparted louter end of the supporting arm, and the upper free end of the second arm is con nectcd to a. fixed connection. Thus upon a rotation ot the driving crank, the supporting arm has imparted thereto areciprocating and oscillating movement which is modified by the supporting link, and the jaw is' oscillated rela tively to the supporting arm bythe second link connection., Vthus imparted to the jaw serves-to more the [tack pullingjaw" in anA orbital 4path above the face of the stationary jaw,;tlietack pulling movement taking place upon tlieback- "ward stroke of the jaw and inaJ direction substantially normal to the plane of the sole. The tack having its tack engaging end directed toward the crank so that that-ack may be readily pulled upon the back stroke without any tendency to displace the shoe or to bend the tack to one side and leave it driven into the shoe. In order` lto properly eject the tack, the working face of the stationaryy jaw terminates abruptly and a free space is formed beyond theend of the face so that the pressureupon the under side of the tack is suddenly relievedand it flies oli' into the tack receiving chute by virtue of the vmomentum which has` been acquired. The movable tack pulling jaw is indica-ted at 25, and the fixed jawat- 26. The stationary jaw 26 is provided with a work engaging' sur-l face 27, over which the tack is drawn by the surface serves as a thrust bearlng against which the tack is is not intended that the tack pulling jaw 25 shall engage with ,the jaw 26, but the mechanism is so arra'n-'ged that the distance. between the point ofthe jaw 25 and the surface of the jaw `26 is substantially equal to the normal diameter of the shank of a tack. In order to accommodate for tacks of unusual size, however, the jaw 26 is yieldingly supported and moves downwardly when the pressure becomes too great. This relieves the strain upon the operating parts of the' machine and vprevents any undue breakage of the same.. The jaw 26 is `formed from a spring plate 28 which is conveniently :tastened at one end to the frame of the machme by the boltsl 29. The bottom of the tack receiving throat or passageway 30 '1s recessed inl order to allow the spring plate to be seated therein, the plate is enlarged to form the work engaging surface 27. It will be noted that the interior surface of the throat or passageway 30 so that a vertical shoulder is formed at the junction of the jaw and fixed portion of they throat.

point by a suitable link The compolind movement A movement of theft-ack pulling jaw' parallelV thereto, las shown clearly in F ig..,9', and this work engaging surface extends above the This aids in controlling the.

8O pulling jaw'is formed as a claw and the front portion of mdiy'fzkient of the t-ack and insures that the 'tack will fly into the throat properly. The

pulling jaw.

The proper movement is imparted to the tack pulling jaw by a supporting arm 3l upon the cuter end of which the jaw is dependent. A reciprocating and oscillating movement is imparted to ther supporting arm 3l by a suitable crank motion, and to this end', the supporting arm `is` connecte at 32 to the crank shaft 33. The crank shaft 33 is journaled in a bracket 34 and is continuously rotated by apulley 35. The pulley 35 is driven by av/suitable belt 36 from a drive pulley .37 mounted .upon the main drive shaft 2 votithe machine. In order .to

control the course of the belt, an idler pulleyV 38 is journaledupcn a shaft 39 which is mounted obliquely in the bracket 34. The tack pulling claw is adjustably mounted inthe lower end of an arm 40 which is pivotally-co-nnected at 41 to the outer end I of the arm 31. 'The arm 31 is supported to reciprocate in a substantially horizontal plane by a link 42 which is pivotally connected to the arm at 43 and is journaledl at its opposite' end on a stud s mounted in the bracket 34. The stud shattfis provided With a head formed upon one end and is retained in position by ajcollar 44 clamped upon the opposite end thereof. The upperY nected to the bracket 34 by alink 45, one end of which is pivotally connected. at'46 to the 1 arm, and the oppositeend of Which is Vpivotally connected at 47 to a projecting member 48 formed upon the bracket. Both a hori- 'zontaland a vertical adjustment of the jaw is obtained by clamping the jaw in a hea 49, which is in turn cla-inpedto the lower end of the arm 40.- The head`49 is recessed upon its opposite faces to operatively engage with the'jaw and the arin .40. The jaw has provision' for lateral or horizontal adjustmentA in the head 49 by a suitable bolt and slot connection 50, and the head 49 has provision for a vertical adjustment relativelyl to the arm 40 by a suitable bolt and 'slot connection 5l.

It Will be noted that the bracket 34 suprts the entire operating mechanism for the tack pulling claw, and the entire mechanism may be readily removed by detaching i the bracket from the machine proper. To

haft 44, which is free end of the arm 40 is conf Itack pulling tool ano is protected from injury, by a curved guard 54 which is fastened to the bracket 34 by bolts 551 A ,dovvnhold 56 is-secured to the guard so as tobe capable ot vertical adjustment and the adjacent edges of the downhold and stationary jaw torni a throat, the edges of which engage the lasting tacks' and guide them into position to bel engaged by the tack pulling jaiv. The slice is presented to the machine with the line of lasting tacks extending parallel to the tack Aengaging edge of the stationary javv and the shoe upper is engaged by thgfl stationary jaw1 and downhold upon opposite sides of the lasting tack so that the'jaiv and doivnhold constitute Work supports for guiding the shoe and holding it in position during t-he operation of removing the lasting tacks.

" Vhile it is especially above described tack pulling mechanism in connection with the present machine, it is to be understood that the construction and mode of operation mechanism is capable of a general application and may be embodied in other types of machines Without departing from the spirit of the invention.

While it is preferred to employ the speciiic A construction and arrangement of parts shown and described, it will be understood that this construction vand arrangement is not essential, yexcept so far as specied in theclaims, and may be changed or modilied without departing from the broader features of the invention. e 'l lVhat is claimed is:- 1. A tack pulling and resetting machine having, in combination, a tack pulling tool, a tack .driving plunger adjacent thereto, the l the tack driving plunger having tack pulling and tack driving movements` respectively lying in planes 'inclined to one another and extending in the direction of feed, and means coperating with the plunger to deflect the course of the tack into a plane substantially parallel to the plane of .the tack pulling movement. I

y 2. A tack pulling and resetting machine having, in combination, a tack pulling `tool having a tack pulling movement in an iiiclined plane of the line of feed, a tack-driv\ ing plunger having a tack driving movement in the vertical plane of the line' of feed, and means coperating With the plunger to deflect the course of the tack into a plane substantially parallel to the plane of the tack pulling movement.

desired toA use the l of this tack pulling j llO;

3. A tack pulling and reset-ting machinev nozzle arranged adjacent to the tack pulling mechanism and having que facer-extending end of the arm the line of feed to form a fixed a but ment be removed.

4. A tack pulling and resetting machine having. in combination. a tack ypulling,r tool` and a tack driving plunger having tack pulling and tack driving movements respectively lying in planesI inclined to one another and extending in the direction of feed` a tack driving head. a detiector block supported upon the` lower end of the head and provided with a bore in .which the plunger Y operates and a detiector vieldably mounted in the head and arranged with one face project-ing obliqncln7 into the bore whereb)Y the tack is deflected in the bore into a plane substantialtvv parallel to the plane of the tack pulling moveimfnt.

p 5. A tack pulling and resetting machine having. in coml'iination. a tackpulling tool and a tack driving` plunger having tack pulling and tack driving movements respectively lying in planes'inclined to one an other and extending in the direction ot feed, a tack driving head, a delector block supported upon the lower end of the head and provided with a bore in which the plunger operates, and a dctiector yieldably mounted in the head and arranged with one t'ace pro; jecting obliquelv into the bore. the face bcing dished out. wherebv the point of the tack is positioned accurately in the bore.

G. A. tack pulling and resetting machine comprising a jaw eupporting arm. a crank diret-tl)7 connected to one end of the arm, an oscillatory supporting link pivotallv .connectcd tothe arm intermediate itsl ends. a tack pulling jaw depending from thc free and having its tack engaging end directed ttnvard the crank. and means for rotating the crank in a direction to cause the'jaw 'to move forward over a tack and pull the tack on its backward stroke.

7. A tack pulling and resetting machine con'lprising a jaw supporting arm. a crank directly connected to one end of the arm, an oscillatory .supporting link pivotallv con nected to the arm intermediate its ends', a tack pulling jaw depending from the free end of t-he arm and having its tack engaging end directed toward the crank. a copei'ating stationary jaw, and means for rotating the crank in a direction to cause the tack pulling jaw to move forward over a tack and pull the tack on its backward stroke substantially parallel to the face of the stationary jaw. y p

8. A tack pulling and resetting machine comprising a jaw supporting arm. a crank directly connected to one end of the arm` an oscillator)7 supporting link pivotallv con'-v neeted to the arm intermediate its ends. a second arm plvotallv lsupported upon the outer end of the first mentioned arm, a llnk connection between the upper free end of the second arm and a fixed point, a tack pulling jaw rigidly mounted upon the lower end of the second arm and having its tack engagingend directed toward the crank. and means for rotating the crank in a direction to canse the jaw to move forward over a tack `and pull the tack stroke. V

9. A tack pulling and resetting machine comprising a iaw supporting arm, a crank directly connected to one end of the arm.y an oscillatory supporting link pivotally connected to the arm intermediate its ends. a second arm pivotally snpiiiorted upon the outer end of the first mentioned arm, a .link connection between the upper free end of thesecond arm and a fixed point. a tack pulling jaw rigidljv7 mounted upon the'lower cndof the second arm and having its tack engaging' end directed toward the crank. a cooperating statitniary jaw. and means for rotating the crank in a direction to canse the tack pulling jaw to move forward over a tack and pull the` tack on its backward stroke substantially parallel to the face of the stationary jaw.

10.14A tack inilling and resetting machine con'iprising a4 movable tack pulling jaw arranged to grasp and pull the tack upon the back stroke, a tack receiving throat and a Stationary jaw yieldabl'v supported adjacent to and below the entrance of thethroat and provided with a work engaging' surface extending substantiallv parallel to the direction of the tack pulling movement. I '11. A tack pulling and resetting machine comprising a movable tack pulling jaw arranged to grasp and pull the tack upon the 'iack stroke, a tack receiving throat and a stationary jaw yieldably supported adjacent to the. entrance of the throat. the front edges ofthe jaw and throat being in alinement and extending substantially parallel With the line of lasting tacks whereby a guide is formed for the tacks in order to position them accurately for the tack pulling jaw.

12. A tack pulling and resetting machine comprising a movable tack pulling jaw arranged to grasp and, pull the tack upon the back stroke. a tack receiving throat and a st-ationarv jaw .vieldably supported on the throat and adjacent to the` entrance of the throat and provided with a work engaging surface. extending substantially parallel to the direction of the tack pulling moven'icnt, the work engaging surface terminatingl abA ruptly and t'orming a free lspace above the jaw in order to release and eject the tack into the tack receiving throat.

1li. .l tack pulling and resetting machine comprising a movable tack pulling viaw arranged to grasp and pull the tack on its; backward stroke, a tack receiving throat. a

on its backwa rd Spring plate fastened to the under side lof vthe throat and having its front portion enlarged toffoi'mf, a, work engaging surface extending," s,nhstantisillj parallel 'to the vdirection o'f/Lhe tack pulling movement- 14. A tack pulling and resetting machine comprising a movable tack pu"ing jaw, operative connections for impaiting lthe proper movements to ,the jaw a casing .in-

Copies of this patent may be obtained far upon the fiame of closing the tack pulling and operative 10 vervegnts each; byzacidressing the Commissioner of Patente,

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