US1743444A - Side tack puller - Google Patents

Description

Jan. 14, 1930. L. G. FREEMAN 1,743,444

SIDE TACK FULLER Filed Sept. 7, 19.23 2 Sheets-Sheet l Jan- 14, 1930. L. G. FREEMAN 1,743,444

SIDE TACK FULLER Filed Sept. '7. 1923 2- Sheets-Sheet 2 I 'to' I `@.zveei r Patented Jan. 14, 1930 Hurra stares ATENT OFFICE LOUIS G. FREEMAN, OF CINCINNATI, OHIO, ASSIGNOR TO THE LOUIS G.,FREE1VIAN COM PANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO SIDE TACK FULLER Application led September 7, 1823.

the lasting tacks prior to the stitching orA other permanent fastenings. In my prior patents I have illustrated and described several machines for performing tack removing operations, but in my development of machines for this purpose, I find that it is most important to have a tack removing machine, so constructed and arranged as to provide a Wide and free range of manipulation of the shoe adjacent the tack fork or other tack removing instrumentality, and for this purpose it is important that the operator have an unobstructed view of the tack removing action.v As it is of vital importance to supply a Work rest or Work holder against Which the shoe may be held, guided, positioned and manipulated, Which ordinarily is somewhat below, although necessarily closely adjacent, the tack removing fork, it has been extremely diilicult to construct such devices and yet permit a wide range of manipulation of the shoe and an unobstructed view by the operator as the shoe is held adjacent the tack removing fork. In my present machine I have so constructed and arranged the same as to maintain the shoe holder and guard properly positioned and adjustably secured in its shoe holding position adjacent to and somewhat below the tack fork, thereby to give Wide range of manipulation to the operator, and yet to secure a firm solid support and adjustment from above the tack removing fork. The importance of this feature Will be appreciated when it is realized that the operator must frequently I dig in for a tack Which has been driven home kand remove same and vet Without souffing, marring or cutting the shoe and upper materials from which the tack is drawn. Particularly at the shank of the-shoe and other portions it is important to enable the operator to twist, turn, and manipulate the shoe in a variety of Ways, to facilitate removal of the lasting tacks. When it is also appreciated that these tack removing forks are o run at high speed, the driving shaft usually Serial No. 661,450.

operating at the rate of several thousand R. P. M., it Will be seen that the importance of adjustment, manipulation, full vieW, andease afforded for manipulating the shoe is of vit-al necessity. My present invention includes means Which Will simultaneously adjust the guards for the tack removing fork, the holddovvn for the shoe, and the eye-guardboth laterally, vertically and otherwise, by a single operation. I accomplish this desirable feature by afliXing the guards and devices to a movable and adjustable head supported to and adjustably secured to the top of the machine, having the scuiiing guard and4 holddown for the shoe depending therefrom. Thus by a single movement I secure an acljustment of these devices laterally with re-` gard to the tack fork, as Well as vertically with regard to the relative position and clearance for the fork, guard and shoe. Furthermore, this Aadjustable support is positioned out of the Way of the shoe and operator When the latter is manipulating the shoe to remove' the tacks.

A still further feature of the present invention consists in the provision of a large reservoir of oil and means to supply the same to the driving shaft, moving parts and fork carrying bar. As such tack removing machines usually depend upon a reciprocating and oscillating bar,rit is practically impossible to provide a fixed and oil-tight bearing through which the bar runs, ovving to the oscillatory 'path of movement requisite for the tack removing fork. I have, in the present machine, overcome this diificulty,V and have provided means Which Will supply a large amount of oil to the entire moving parts, and yet Will prevent the same from be ing thrown out along the line of the oscillating tack fork carrying bar and damage the shoe. Preferably I employ a plurality of oil retaining means for this purpose, which Will yet permit free movement of the oscillating bar, as explained. The provision of a substantial oil supply in a machine of this kind is a distinct novelty and I Wish to claim the same broadly. Other important advantages, details and novel combinationsrof parts AWill i fing guard.

more fully pointed out and Fig. 6 is a detail sectional view showing the relative position of a tack fork, a shoe from which the tack is to be removed, and a. soufguard;

iin Fi 7 is a lan view of a tack fork;

Fig. 8 is a sectional view on the line 8--8 of F ig. 7, and

ig. 9 is a detail of a modified form of scufA eferring .to the drawings, 10 designates a base or pedestal to the lower end of which i is rotatably mounted a shaft 11 carrying a v driving pulley 12 and driven from any suitable source of power. Formed integral with the base or pedestal 10 or secured thereto in any suitable manner and extending upwardly therefrom to, any convenient height is a head 13, this head being hollow and having a portion 14`thereof extending upward and'laterally with respect to the base or pedestal 10. Intermediate Ythe ends of the vertical portion of the head 13 isa dia hragm 15 which formsthe bottom of an oil c amber or reservoir 16 containing a body of oil or other lubricating fluid 17. Screwedinto the wall of the head 13 and communicatmg with the oil chamber or reservoir 16 is an oil gauge 18 and by means of which the level of the oil la A en ,p

in the reservoir 16 may be readily determined. This oil gauge 18 has connected therewith a cock 19 for the purpose of drawin off surplus or used oil.

VSecured to the side wall of the head `13 in any desired manner and extending inwardly to a point within the oil chamber or reservoir 16v is a head bearing 20. Y In the head bearing 20 is a longitudinal passage y that lies parallel withzthe axis of the shaft 11 and the head bearing 2O extends laterally from the head 13 on the same side of the pedestal or base 10 as theV pulley 12. In the longitudinal perforation inthe headY bearing 20 is a renewable bronze bushing 21 in which is rotatably mounted a crank shaft 22 which, because of the construction above described, lies parallel with the drive shaft 11. Secured to the crank shaft'22 is a grooved balance pulley 23, theV groove 24 of which is in vertical alinement with the corresponding groove inthe drive pulley 12 and passing over the pulleys 12, 23 is a driving belt 25 by means of which rotary motion is imparted Y to the crank shaft 22 by the drive shaft 11.

Secured to the crank shaft 22 by pin 26 is a balance 27 which, as the crank shaft rotates,

dips into the body of oil 18. Other parts of the mechanism maybe effective to splash the oil over the actuating mechanism in lieuV of the splashing actionA of the balance 27 or' in addition thereto dependent, of course, upon the level of oil in the reservoir. The head bearing 20 is provided with a pluyIality of oil ways 28 leading -to the cranku shaft 22 through the renewable bronze bush-V ings 21 and oilcups 29 are arranged at the receiving end of'such oil ways 23. The'head portion 14 is, as shown in Fig; 1, cut away and in this cut away portionris fitted a closure plate 30 which is held in position on the head portion 14 by means of a spring lclamp 31 pivotally secured to the top of the head portiony 14 yin any desired manner.

a bronze bushing 34and holding .suchy bronze y bushing by means of a screw 35, the bronze bushing being a fit on an eccentric crank pin 36 on the end of the crank .shaft 22. A rearv cap 37 fits overV one ofthe bearings-in which slides the puller bar 32 and is held in position thereon by screws 38 while the front cap 39 fits over the front bearing for such vpuller bar and is secured in position by screws 40. Secured to the interior of t-he head portion 14 by screws 41 is a pivot bar 42 to which is pivotally mounted one end of a pivot bar link 43, the other end of this link being pivotally attached to the puller bar 32, as clearly shown in Fig. 1. As the crank shaft 22 rotates, the running balance 27 splashes a portion of the oil 17'out of the reservoir 16 and forward toward the front of the head portion 14, thus 105 e lubricating the puller bar' 32 and the bear? ingsin which the same slides, as well as lubrieating the pivot points of the pivot bar link 43. Lubrication almost to the point of excess is necessary, due to the great speed at which the crank shaft 22 revolves and therefore no matter how tight the bearings may be between the front cap cover 39 and the puller bar 32, some oil will work through and there is, therefore, danger that the oil will fly out onto the shoes from which the tacks are being removed.- To obviate this danger, I have provided, adjacent the rearend of the front bearing and the front cap '39 for the same, a partition wall shown `at 46 which I have found an efficient means for preventing leakage of oil out through the front of the head portion 14. The front end of the puller bar 32 is provided with a slot 47 that makes an angle with the length of the puller bar 32 and in this slot is mounted the shank end of a tack fork 48. Securely holding the tack on the puller bar 32 by the screws 50,

Secured to the top of the head portion 14 by bolts 5l is a top arm 52, this toparm being provided with a plurality of elongated slots 53 through which the bolts 51 pass and by means of which it is possible to move the arm relative to the head portion 14. The outer end of the top arm 52 is enlarged at 54 and this enlargement is provided with a slot 55 in which is slidably mounted the guard arm 56, a clamp 57 secured to the front of the enlargement 54 by bolts 58 securely holding the guard post in any adjusted position along the length of the slot 55. The clamp 57 not only acts to hold the guard arm 56 in adjusted position, but acts also as a holding device for a shield 59, clamping jaws 60 being provided at the lower end of the clamp 57 for this purpose. The shield 59 may be semicircular in shape, as shown in Fig. 4, and may be of heavy plate glass or may be of the shape shown in Fig. 5 which has a portion 61 thereof cut away to allow the shield to be made of other material such as iron while yet permitting the operator to look downward upon the tack fork without danger of having tacks thrown upward' into his face.

Secured to the guard arm 56 in any suitable manner is a scufting guard 62 in which works the tack fork 48 and this scuffing guard has formed integral therewith a side wing 63 separated from the main portion by heel which acts to protect the upper of a shoe being worked upon from damage by the tack fork travelling in its orbit. At the side of the scufhng guard 62 (where it is fastened) there is an extended Vside 64. The extended side 64 performs two functions, one of which is to hold down the upper next to the tack when pulling tacks thatl are driven deep, and the other is to enable the operator to bring the shoe into operative position with respect to the tack fork quickly and without risk of the shoe slipping from its position and becoming damaged. The tack fork 48 is made in different widths to suit dierent conditions and the scufling guards are made in widths to suit thev particular width of tack fork. Both the scuiiing guards 62 and the 62 is made through the top plate 52 while, asv

described above, the vertical adjustment of said scuiiing guard 62 is'provided for by means 'of the plate 57 and bolts 58. No adjustment is required for the guard plate 59.

In addition to the tack forks 48 being 4made either right or left handed and of any desired width, I find it of considerable advantage to make the forward serrated edge of such tack fork lie at an angle to the plane in which the .tack fork rotates, this feature being clearly brought out in Figs. 6 and 7V it will be noted that each of said teeth, in secn tion, is substantially trapezoidal in shape to better facilitate the engagement of such teeth with the tack 67 to be removed from the shoe structure 68 being built on the last 69.

The operation of my improved device is as follows, it being assumed that such device is constructed and assembled in the manner above described. The reservoir 16 being filled with oil 17 to the desired depth so as to allow the balance l27 to dipinto the same and splash oil up through the forward part of the head 14, the tack fork 48 and the sculiing guard 62 being adjusted to operate to remove tacks-v from shoes 68, power is thrown onto the main shaft 11 which, through the belt 25, imparts rotary motion to the crank shaft 22 and the crank 36 thereon will cause a reciprocatory motion of the puller barA 32. The reciprocatory motion imparted to the puller bar 32 is modified by means of the pivot bar link 43 and the forward end of the puller bar,as represented by the operating serrated end of the tack fork 48, is forced to describe a path represented by the dotted line 65, the movement of the front of the tack puller 48 taking place inthe direction ,of the arrow shown in Fig. 6. .The tack pulling operation is performed in the usual manner7 the operator passing the shoe 68 on the last 69 transversely of the line of travel of the tack puller 48 and the rapidly moving tackv fork engaging with the tack 67 pulls them out of the shoe. The side wing 63 prevents injury to the shoe by the tack fork and the extended side 64 holds down the upper next to the tack, when pulling tacks, ,and enables the operator to bring the shoe into operative position without risk of slipping from position and damaging the shoe, while ythe heel 7 O holds the upper down on the last l69 lwhile the tacks are being pulled.

The scuiiing guard as a whole prevents scuffing of the shoe uppers by the tack fork 48.Y The partition wall 46 prevents oil workiig out of the head 14 and flying lonto the s oe.

As a further safeguard to prevent any oil that may work out on bar 32-especially the top and bottom faces thereof-'from flying ofi' and soiling the shoe being worked on, I place a guard 71 on the puller bar 32 at a point just outside the opening in the head through which the puller bar 32 passes. The face of this guard 71, adjacent the end of the portion V14 of the head 13, is concaved, vas indicated at '72. This concave portion 72 guides i BH2, downwardly and intola receptacle 73 thatA is secured to the bottom of theportion 14 of the head 13 by screws 74. The oil supply'is preferably sufficient for the continuous op-y eration of the machine during an entire month, thus insuring the full efficiency of the machine without having it stopped for oiling, and without endangering the life of the ma'- chine through careless operators neglecting 1 to oil the moving parts when needed.

' In Fig.'9 I have illustrated amodilied form of sculiing guard lin whichthe extension 64 is made separate from the portion 62, said extension 64 beingladjustably mounted on the portion 62 by screws 7 5. On the upwardly extending lower edge 76 is provided a cutaway portion 77 in which is housed a rotaty stoo'dthat I may vary lthe size, shape, and arportant element.

rangement of parts comprising my invention WithinV wide limits without departing from lthe Vspirit of the invention. The important features of having an adjustable head carrying the variousV guards, 'and all adjusted, both vertically and longitudinally, with relation to the fork, irrespective of the size, length, or dimension of the tack removing fork 48 is of very considerable importance, particularly as these forks are often changed and shifted, and the time saved is an im- -The entire machine is self-contained and'of` simple compact conn struction, permitting the widest lpossible range for manipulating the shoe in under, and

around the guard and fork. vThe large oil supply insuresV the running of the machine, and permits greatly increased speed of opera tion, lwith perfect safety and efficiency, and yet while supplying'for this purpose a vlarge volume of oil,4 protects and guards the shoe from damage'by throwing of oil. The arrangement Whereby I have supplied all the tackV removing instrumentalities,l the shoe guard or guide, the tack guard or guide, and the other mechanism positioned at one sidev of the linel of tacks to be removed and preferably opposite the operator, is a novel construction of great'advantage and importance, as it enables the operator to have a clear, uninterrupted vision of the exact pointof tack i removal. This increases the ease, speed and eiciency of thetack removing operation,

' Vgreatly facilitates. the manipulation ofthe shoe especially for digging into a deeply set tack and enables theoperator, at all times, to see the work. Y In prior machines'of this kind with t-he guard, some member of the machine, such as Vthe shoe rest, or a tack-engage' ing memberwas positioned between vthe operator and the actual point of tackremoving. Therefore such prior machines did not have a full and uninterrupted view of the actual point of tack removal. Furthermore, in most pulling devices or forks were arranged to move toward a. work rest, usually away from Y Y ,7"5` prior machines the tack hftmg, removing or the position of the. operator and sometimes f utilizing the tacl engaging edge of a work rest to aid in effecting the tack pulling. My machine has vthe working or moving tack lifting devices movable across the workrest and toward the line of tacks kto be removed and hence toward the operator. Thus I have provided a construction'eliminating all parts of the machine from blocking the operators 1 vision. This feature of having a portion of the path of travel of the tack pulling devices movable across the Work rest and toward the tack-engagingedge is thus of importanceand I wish to' claim the same herein broadly.

YVith the further addition of a transparent guard to stop flying tacks from Vinjuring the operator, Ihavel thereby provided a machine of this type wherein the actual Vpoint of contact between theV tack pulling devices andthe lasting tacks can be and is in the direct line of vision of the operator, a distinct novelty in this art.. A a

Having thus described my invention, what Iclaim asnew is:

1.'In an improved tack pulling machine,

for imparting orbital motion in avertical Y plane to the working end of said tack fork,

a sculiing guard associated with said tack fork Y and having a portionV positioned under the fork and in advance of the'movement `of the fork to the' line of tacks, a projection on said s'cufiing guard to protect the upper of a shoe f being workedv Aupon from damage from the tack fork, and means on said scuifing lguard for holding the upper of a shoedown while tacks are beingY pulled from the shoe., Y,

` 3. In an improved tack pulling machine, the combination of a head, a tack fork mounted in andextending forwardly of the head, a top plate adjustably mounted on said head,

a substantially vertical guideway in said top plate, a sculiing guard mounted in said guideway for vertical movement therein and with respect to the tack fork, and means for holding the scuflng guard in any adjusted position in said guideway and with respect to the tack fork while maintaining a portion of said guard in position under the path of travel of the fork when approaching the line of tacks. v

4. In an improved tack pulling machine, the combination of a head, a tack fork slidably mounted therein and extending forwardly thereof, a top plate mounted on said head,

means permitting adjustment of said top plate longitudinally of the head, a scufiing gua.rd,'means for adjustably mounting said scufng guard for vertical movementv in the top plate, and a guard located above said tack for 5. In an improved tack pulling machine, the combination of a head, a tack fork slidably mounted in and extending forwardly of the head, a top plate on said head, means for adjusting said top plate longitudinally of the head, a scufting guard, means for adjustably mounting said sculing guard in vertical position in the top plate, and a guard secured to the top plate and above the tack fork. i

6. In an improved tack pulling machine the combination of a head, an oil reservoir formed therein, a puller bar mounted in said head, means for imparting a combined forward and upward pulling movement to the forward endv of said puller bar, means for .throwing oil from said reservoir into the forward part of said head, said machine being constructed and arranged to preventthe oil thrown into theforward part of said head from reaching the work.

7. In an improved .tack pulling machine, the combination of tack pulling means, guiding and guarding means for the shoe and tack pulling means,an oil reservoir, devices tosupplv oil to the moving parts, said machine .being constructed and arranged-to prevent the oil supplied to the moving parts, from reaching the work.

8. In an improved tack pulling machine, ay scufling guard, and an upper smoothing roller mounted thereon and lying in one face thereof.

55 *9. In an improved tack pulling machine,

, the combination of a supporting head, a puller bar slidably mounted in and extending forwardly in front of said head, a tack fork secured to the front end of said puller bar, means for imparting a combined slidable and rotary movement to the puller bar thereby to impart a substantially orbital movement to the tack fork, a plate adjustably secured to the top surface of the head and i extending forwardly therefrom, and a seufoperator, while permitting unobstructed view of the tack fork and the work.

11. In an improved tack pulling machine, the combination of a head, a reciprocating puller bar mounted therein, means for imparting a combined slidable and rotary movement to the end of the puller bar, a single tack fork secured to one end of the puller bar, a scufng guard associated with the tack fork, and means for adjustably securing the souffing guard in rigid position with respect tov the tack fork.

12. In an improvedv tack pulling machine, the combination of a tack fork and a scung guard adjustable vertically and longitudinally with respect to the tack fork, and a beveled side plate formed on said scufling guard to clear obstructions and to enable the operator to manipulate the shoe being worked on to extract deep seated tacks.

13. In an improved tack pulling machine, a scufhng guard, a tack puller associated therewith, and movable longitudinally thereof in a vertical plane, an anti-friction roller mounted at one edge of the guard, the axis of the roller lying in a plane forming an angle with the plane of movement of the tack fork, the surface of the roller extending outwardly beyond the surface of the sculiing guard.

14. In an improved tack pulling machine, the combination of a tack fork and a scufng guard operatively associated therewith having aside guard projecting therefrom with its lower edge extending upwardly and forwardly from the lower face of the scuiiing guard for permitting manipulation of the shoe during the tack pulling operation.

15. In an improved tack pulling machine, tack pulling means movable in a line of movement toward the operator during the tack pulling operation, and a transparent guard positioned in front of the tack pulling means and between the operator and the tack pulling means, whereby said guard protects the operator from flying tacks while permitting the operator to view the work.

16. In an improved tack pulling machine, Y

Y v17. Animproved tackl pulling arranged as to permit free unobstructed View of the Work during operation, While protect- Ying the operator from possible injury from flying tacks. s n

machine having in combination tack pulling means,

means to protect the Work from said tack pulling means and a projection on said protecting means to guide the Work, and mechanism to eect relative move'n'ient of the tack pulling means across a portion of the protecting A means toward the tacks to be pulled.

Y means across a portion yof the guiding an 18. An improved tack pulling machineliaving in combination tack pulling means, ad-

justable guiding means and guarding means for the Work, said guiding means projecting from the guarding means, and mechanism to effect relative movementV o'tthe tack pulling guarding means toward the tacks to be pulled.

19. An improved tack pulling machine comprising tack pulling means. an adjustable vWork rest having a guiding edge and a guarding portion, said edge being disposed forwardly at an angle with respect to said guarding portion` said rest being positioned under a portion of the path of movement of the tack `Y pulling means in combination with mechanism to produce relative movement of the tack'pulling means across said Work rest to engage and pull tacks positioned adjacent the said guiding edgeof the Work rest.

Y 20. An improved tack pulling machine hav- I ing movable tack engaging devices and a Work rest co-operating therewith, means permitkting relative adjustment of said devices and work rest, said Work rest having a guide portion and a guard portion arranged'to guide" and guard the work along the line of -tacks to be removed, said guide portion being disposed at an angle forwardly from said guard portion, and mechanism actuating the tack removing means across the Work rest to approach Ythe lineV ofv tacks.

2l. An improved tack pulling machine having movable tack engaging devices and a Work rest co-operating therewith., means permitj ting relative adjustment of said devices and v tacks adjacent said guide portion.

work rest, said Work rest having a Vguide portion and a guard portion arranged to guide and guard the -Work along the line of tacks to be removed, said guide portion being disposed at an angle forwardly from said guard por- A tion, and mechanism actuating the tack re-` means to prevent the oil thus splashed 'from reaching the Work.

23. A tack pulling machine having in combination tack pulling means and actuating Vmechanism therefor including a puller bar,V 'Work guarding means adjacent a portion of the path ofvmovement `of said tack pulling means, a casing forming an oil reservoir and enclosing said actuating mechanism, said puller bar being reciprocable in said casing,z.

said mechanism having means adjacent one end of the puller bar to splash oil Within the casing during operation ofthe mechanism thereby to bathe the same in oil, and means to prevent the oil thus splashed from reaching...

the Work and Work guarding means.'

24. A tack pulling machine having in combination tack Vpulling means and actuating Y d mechanism therefor including a puller bar, a driven crank connected to one end of'saidj puller bar, a casing forming an oil reservoir and enclosing the crank and major portion of said puller bar, said puller bar being reciprocable in said casing, and said mechanism having means adjacent said crank to splash Y oil over the puller bar and associated mechanism thereby to bathe the same in oil, and means to prevent the oil thus splashed from reaching the Work. A,

25. A tack pulling machine having in Vcombination tack pulling means and actuatin mechanism therefor, a'casing forming an oi reservoir and enclosing said actuating mechvanism, said mechanism having means to splashoil Within the casing during operation thereof thereby to bathe the actuating mechanism in oil, said casing having a-partition Wall to prevent oil from escaping to thework.

26. A tack pulling machine having in combination tack pulling means and actuat-L ing mechanism therefor y,including a puller bar, a driven crank connected to one end of said puller bar, a casing forming an oil reserc voir and enclosing said crank and themajor Y portion of said puller bar, said puller bar bei ing reciprocable in said casing, said Ymechanism havingmeans adjacent said crank.` to

splash oil Within the casing thereby to bathe'V the puller bar and associated mechanism in oil, and a guard on the puller bar to prevent oil from creeping along the bar to the work.,

27. A tack pulling machine having in combination tack pulling means rand actuating mechanism therefor including apuller bar-,a Y driven crank connected to one end VofV said'v puller bar, a casing forming an oil reservoir and enclosing-said crank and the major portion of said puller bar, said puller bar being reciprocable in said casing, saidicmechanism having means adjacent said crank to splash oil over the puller bar and associated mechanism thereby'to bathe the same in oil, said casing having a partition Wall and said puller bar having a guard to prevent oil from escaping to the work.

28. A tack pulling machine having in combination tack pulling means and actuating mechanism therefor, a casing forming an oil reservoir and enclosing said mechanism, said mechanism having means to splash oil Within the casing during operation of the mechanism, thereby to bathe the same in oil, said machine being constructed and arranged to prevent the oil splashed over the actuating mechanism during operation thereof inthe casing, from reaching the Work.

In testimony whereof, I have signed my name to this specification.

LOUIS Gr. FREEMAN.

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