US1115998A - Nailing mechanism for heel-building machines. - Google Patents

Description

W. WOLFE.

NAILING MECHANISM FORBEEL BUILDING MACHINES. APPLICATION FILED 1 113.12, 1912.

1,1 15,998. Patented Nov; 3, 1914.

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A/Tof? MZMMM HE NORRIS PETERS cc. PHOTO-LITHCL. WASHINGTON, D. c.

W. WOLFE.

NAILING MECHANISM FOR HEEL BUILDING MACHINES.

APPLICATION FILED FEBJZ, 1912.

1,1 15,998. Patented Nov. 3, 1914.

5 SHEETS-SHEET 2.

272157- JMMof /rri m Nokms PETERS co PHUTn-l ITI-.1,, WASHINGTON, 1:. c.

W. WOLFE.

NAILING MECHANISM FOR HEEL BUILDING MACHINES.

APPLICATION FILED rmmz, 1912.

1,1 1 5,998, Patented N0v.3,1914.

5 SHEETSSHEET 3.

@1 1 94 flank" f7? THE NORRIS PETERS Co. PHOTO-Linda. WASHINGTON. D. c.

W. WOLFE.

NAILING MECHANISM FOR HEEL BUILDING MACHINES.

' APPLICATION FILED P151312, 1912.

1,1 1 5,998. Patented N0v.3, 1914.

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W. WOLFE. NAILING MECHANISM FOB. HEELBUILD ING MACHINES.

APPLICATION FILED FEB. 12, 1912.

WILLIAM Wo rn, or s'r. LOUIS, MISSOURI;

NAILING MECHANISM, FOR nnEL-BUILnING AcnINEs.

To all whom it mag/concern 1 Be it known that I, WILLIAM lVorLrn, citizen of the United States, residingin the city of St. Louis and State of Missourhhave invented new and useful Improvements in Nailing Mechanism forI-Ieel-Building Machines, of which the followingis a specification. a

This invention relates to improvements in heel building machines, and hasspecial reference to a novel construction and operation of nailing mechanism, operating in timed relation with a heel-forming mechanism to successively supply the nails and drive them intothe heel.

The invention is concerned with novel means for continuously supplying nails; with novel means for delivering the-nails so supplied to a carrier; andwith mechanism for driving the nails into the heel, certain of these features constituting, so tospealr, independent subjects of invention, while others serve as elements in novel combinations including suchindependent features. I

In carrying out my invention I employ a nail reservoir and means for agitating the. same which operatestodeliver acontinuous supply of nails to a pluralityof slots in an inclined race-way. At the foot of this raceway the nails aresuccessively delivered to a temporary holder, and at a certain period of the operation of the machine the nails are forced from this holderhand permitted to descend through chutes into a carrier associated with a reciprocating part of the heel-forming mechanism. At theproper time. such carrier is brought into position over the heel andthe nail-drivinganechanism is operated touforce the nails from the carrienirito the heel. a

All of the operations described are per forined automatically, the machine being of the type inwhichmotion is automatically arrested after each reciprocation of theheelforming mechanism, t'o be again set in motion at the willof the operator.

The. machine illustrated herein is of the same. general character as to construction and, mode of operation as that forming the subject-matter of a pending application filed by me January 3rd, 1911, Ser. No. 600,611. As the present invention is concerned only with the nailing mechanism, I Will refer only briefly to those parts which are not directly involved in the present invention, but

Specification of Letters Patent;

Application filed February 12, 1912. Serial No. 677,040. v i

which arefullydescribed in my saidpend lng application, v f

In the accompanying drawingsFigure Patented Nov. 3, 1914.

1 is a view in front elevation of a machine constructed according tomy invention; Fig. 2 1s a view in side elevation of the same;

. Fig.- 3 is a sectional view of the driving mechanism, the section being taken on the line33 of Fig. 2; Fig. is a plan view, on an enlarged scale, partly broken away, of the nail magazine and chute, together with certain adjunctive parts for releasing the nails; F ig." 5 is a longitudinal sectional View taken on the line 55 of Fig. l; Fig.1 6 is a viewyin' end elevation andupartlyin section, on an enlarged scale, ofthe nail-re leasing" mechanism; Fig. '7 is a sectional view onthe line 77 of Flg. 6; Fig. 8 isa cross section onthe line 8.8 of Fig. 6, illus- I trating-one of the'nail-controlling plates; Fig. 9 1s a view in rear elevation ofa portion of the na1l-releasing bar showing the manner I of mounting the nail-releasing plates therein; Fig. 10 1s a planview, on an enlarged, scale, showing the construction of parts at the foot of the race-way;sFig. 11 is I a similar View onza larger scale, and partly in section, showing one of the spring-controlled .naileholding members; Fig. 12 is a I plan view of the: combined press-block and nail-holder or carrier; section onthegline 18'13'of Fig. 1 2; Referring now to the, drawings, the Innineral 1 indicates the standard'of the machine on which.is'mounted anzupper framework 2,.supporting orhousing the major portion of the operating mechanism.

u v I and Fig. 13 s a a Mounted inibearings in the frame 2 is a main shaft 3 which is driven from a pulley elthrough the medium of a' clutch 5. The

pulley l will be driven bya'suitable belt,

which, however, is not shown in the" drawings. Secured onfthe shaft 3 to rotate therea with are two cams 6 and 7. mounted-at 8 in the frame centrally. of its upper end is a rocker arm 9, whichhas Pivotally iocmounted in opposite sides at its top two I i I anti-friction rollers 10, 11., whichare adapted to be alternatelyengaged by the cams 6 and 7 to rock the lower end of the arm 9 backward and forward. Pivotally' secured to the lower end of the rocker arm 9 is one end of a link 12 which, at itsother end, is

pivot-ally secured to, a ram '13 slidably .mounted n the frame." This ram carries at its forward end a combined press-block and nail-holder 1 1 which is shown in detail in Figs. 12 and 13. As clearly described and shown in my pending application, this combined press-block and nail-holderis capable of vertical movement in an extension 15 forming the end of the ram 13, and is normally held upward by a spring incased in said extension. The press-block 14 is provided preferably with four vertical apertures, one of said apertures, 16, being located at the center, and the other three apertures, 17, being located near the circumference of the press-block in such manner as to form the points of an imaginary isosceles triangle.

18 indicates spring arms which are secured at one end in the wall of the press-block, and have their free ends bent to :;tend into the apertures 16 and 17. The purpose of these sprin arms is to retain nails, such as 19, in their respective apertures until such time as said nails are driven into the compiled lifts. Secured on the frame 2 is a bracket 20 which supports the upper end of a race way 21, shown in detail in Figs. 4, 5, 10 and 11. Pivctally mounted at 22 at the upper end of this race-way is a nail box 23 having a removable, hinge-connected lid 24: and end 21 normally locked in position by a spring catch 25. The bottom of the nail box is provided with three longitudinally-extending V-shaped grooves 26 which are of a size to permit the shanks of the nails to fall freely therethrough but to retain the heads of the nails which are received in said V-shaped grooves so that they lie substantially flush with the upper surface of the bottom of the nail box. Secured on the sides of the box toward its lower end is a clip 27 to which is pivotally secured the upper end of a hanger 28. Pivotally connected to the lower end of this hanger is a rod 29 which is pivotally connected at its lower end, as indicated at 30, to a crank disk 31 near the periphery of the latter. This crank disk is mounted onthe end of a shaft 32 which is supported near opposite ends in bearings33 provided at the ends of a cast ing bolted on the frame of the machine. On the opposite'end of the shaft 32 is mounted a sprocket wheel 31- which is driven by a sprocket chain 35. This sprocket chain is driven from a small sprocket wheel 36 fast on a stub shaft 3'? which is mounted at its inner ends in bearings (not shown) in the frame of the machine. On the hub of the pulley at there is mounted a sprocket wheel 38, and on the end of a shaft 39, shown only in section, in Fig. 3, there is mounted a sprocket wheel 40. A sprocket chain 41 passes over the two sprocket wheels 3 38 and 40. Mounted on the shaft 37 is a large sprocket wheel 12 which is so located as to have its teeth engaged by the outer side of the sprocket chain 11. The chain passes over the small sprocket wheel 36, engages one side of the sprocket wheel 34, and then passes over a small sprocket wheel 13, which is fast on the end of a shaft 4: 1 mounted in bearings 45 on the side of the frame 2. The shaft 39, above referred to, is similarly mounted on the opposite side of the machine, and' these shafts l t and 39 operate the two paste-applying devices, indicated, respectively, by the numerals 46 and 47, through the medium of a sprocket drive 48 and gears a9 and 50. As the paste-applying device forms the subject-matter of a separate application it need not be described herein more in detail. As the shaft 32 is revolved through the driving mechanism shown more clearly in Fig. 3, the crank disk 31 will operate to raise and lower the rod .29, which, in turn, causes an up and down movement or reciprocation of the nail box 23 on the pivot 22. This movement of the nail box 23 causes the nails therein to be agitated and to fall into the slots 26, in which they slide downwardly and enter corresponding slots 51 formed in the race-way 21. Mounted on the upper side of the raceway 21 to extend parallel therewith, and at a slight distance above the heads of the nails in the slots of said race-way, is a plate 52 secured in position by screws 53, the purpose of which is to prevent the nails from riding upon each other and thus choking the feed. The lower end of the race-way 21 is supported on and connected by means of screws 53 to a naii support 5 1, which is provided at the upper end of a bracket arm 55 secured on the side of the frame 2. The nail support 5st is provided with an upwardly curved portion 56 provided with slots 57 which form continuations of the slots 51, and which curved portion merges into a horizontal portion 58 of the nail support provided with three apertures 59 which are entered by the slots 57. Each aperture 59 with its slot 57 is preferably provided in a block 60, which blocks are inserted in grooves formed in the nail support 51 and secured in position by means of screws 61. Referring to Fig. 11, each of the blocks 60 is bored through from one side to provide a recess 62 having a' restricted opening communicating with the aperture 59, which opening permits a metal 3' ball (33 to project part way into the aperture 59, said ball being normally held in such position by means of a spring 64: engaged by a screw 65 which likewise closes the outer opening of the recess 62. Secured on the under side of the nail support 54:, and forming continuations of the apertures 59, are three tubes 66 having in their rear sides slots 67, said tubes being held in position by means of binding pins 68 mounted in rev these nails so as to permit them to tall cesses-in the horizontal part of the nail sup port and pressed nward aga nst sa d tubes by meansof set screws 69. Adjust.

ably secured on each tube'66 bynieans ofa set screw 70 is a sleeve 71 carrying atits lower end a nail tube 72, thelower ends of said nail tubes terminating above, and im mediately overthe apertures 17 in the pressblock and nail-holder li Asthenails slide down the race-way 21 they successively enter the apertures 59, being retained therein by the balls 63. i The mechanismf'or releasing through the nail tubes .72 into the combined I tension 76 at its outer end,

ally mounted at 77 one end ofa lever 78 hav outer end portion bent downward and.

- provided onthe hub 81 of .afcrank disk 82,

press-block and nail-hold M; ill be, described.

Securejd on the's ide of the nail support by means of a screw, Jis'a bracket arm 74 hav'ing'ai horizontal portion 75, extending over and parallel with the upper-surface of thenail 'support and having an upward eX- m which, is PIVOT,

ing its outward to provide an engaging end 79 which is adapted to be actuatedby' a lug 80 mounted 'on the main shaft Mountedin the horizontal portion 75 of the bracket 74 are three plungers83, each of which has secured thereon a disk at by means of which it is pressed normallynplward by a spring seatedin a r'ecessj86, the disk Stbearing against an apertured' plate 87. secured onthe upperside of the member 75, and throughwhich the upper ends of theiplungers 83 pro ject. The said plunger-s have their lower endslocated immediately over andslightly above thejapertures 59in the nail support. The level-78 is providedon its under side with three dovetailed grooves, in each of which is inserted the lowerfmemberB S of an said lower portion beingpro-v L-shaped key, I vided with annaperture89, and the upright portion having secured therein one end ofapin 91 which is'slidably mounted in i the lever 78 and is held, against withdrawal by a cotter-pin,or the like,-92. A spring 93" surrounding the pin 91, land located between the side of 'thelever '78 and the upright por spring 79 holds said lever normally in a lug 80 to engage the end, 7 90f thelever78,

thereby throwing said; lever downward and causing thejunder sides of the keys to strike ll-P1561 ends ofthe plungers 83-and press theinjdownwardc I As this ocurs the lower ends of said plungers strike the heads of the,

nails in theapertures59 andpress them past p the balls 63 which are thereby moved inward against resistance of the springs 64. It

sometimes occurs, however, that one or more .of. the nails will fail to feed, and it IS then 7 necessary to'operate the machine againso that the. missing nail may be supplied and driven into the heel. To accomplish this the-- operator presses, in thekeys controlling the plungersof the tubes through which nails have been fed, and on placing the machine in operation only the plunger of the tube which did'notsupply' the nail will be 0peratedi ,Assuming, for illustration, that nails have'been supplied through the two tubes atthe right of Fig. 6, andthat no nail,

had fallenthrough the tube'at the extreme operation. As the, lever-T8 descends the two plungers 83 at the right will simply pass through the apparatus 89 andinto the recesses .94. of thelever andwill not be operated,v wh'ile the imperforate part of the key at the left will engage its plungeifland causeinto. descend and release the nailheld; in the apere ture 59 beneath it. The. nails "released: from 85-1 left; the operatorwould then pressin the keys controlling the plungers of the two: right-hand tubes andplacethe machin xin the nail-holder 5 +L fall through the nail tubes l 712 andintotheapertures 17*of the combined I 13 is tlllOWIlOHbWZLICl bythe operation of the cam 6 the heel-former (not herein described) press-block andnail-holder 14. As the rain and the press-block carrying the nails are g moved forward to the lifts, said press-block being immediatelygoverthem At such time thetcrank; disk 82,.through the medium of, a

.pit nanrod 95 pivotally connected to-said crank diskat one. end, as indicated at 96,, and at its other-end to a drivebar 97, indi cated at98, carries the said drive bar downward whereby. drivers 99, secured in the Lower end thereof, will enter the apertures I7 andforce th nailsthereininto the heel lifts, and att-he same time the lower end of thedrive bar; engages the press-block and forces it'downward on the heel lifts-to compress thelatter. In building; heels of pieced lifts zit =is usual to' employ three nails,

-VVhere whole lifts areused but a singlenail may be required; There this is. the case it will be understoodthat a single tube 72 would bememployed, having its lower end .terminatingimmediately over the central aperture 16 of the press-block and only one of the lized I p I I w The clutch mechanism 100 (Fig.2) actuated the operator by means of the rod 101, neednot be specifically described here-,

in, as it forms no part of the invention, and a similar clutch being fully described and slots of the. race-way would be utiillustrated in my said pending application. It is suflicient to say that the operator presses upon a treadle to draw down the rod 101 which throws the clutch 5 into operation,

and at the expiration of a complete revolution of the shaft, resulting in a single reciprocation of the ram 13, the clutch is automatically thrown out of operation and the machine stopped. In such movement the drive bar 97 will have been lowered and raised.

Referring now particularly to Fig. 7, the slot 67 in the tubes 66 is for the purpose of permitting the shank of the nail to enter said tube as the head passes into the aperture 59. In the event that nails too long to pass by the upper edge of the sleeve 71 should be employed, the set screw '70 would be loosened and the sleeve 71 lowered on the tube 76 to permit the free entrance of the shank of such nail through-the'slot 67.

I claim:

1. In a heel building machine, heel nailing mechanism involving an inclined raceway provided with slots, means for continuously supplying nails to the slots of said race-way, a nail support at the bottom of said race-way, nail tubes leading therefrom, a horizontally reciprocable nail holder movable by the machine to a position under said tubes, and means operated from the machine for releasing the nails from said support in timed relation with the movement of said nail holder.

2. In a heel building machine, heel nailing mechanism involving an inclined slotted race-way, means for continuously supplying nails to said raceway, a nail support at the foot of said race-way, a series of springtontrolled plungers coeperating with said support, nail tubes leading from said support, a horizontally reciprocable nail holder movable by the machine to a position under said tubes, and means actuated from the machine for depressing said plungers to release the nails from said support at timed intervals relative to the movement of the nail holder. 1

S. In a heel building machine, in combination with a reciprocating nail-holder, an-

inclined slotted raceway, means for supplying nails thereto, a nail-support at the foot of said race-Way having apertures, nail tubes leading from said apertures and adapted to deliver nails to said nail-holder, a spring-pressed member projecting into each of said apertures and adapted to support the head of a nail, a series of springcontrolled plungers mounted immediately over said apertures, and means operated from the machine for depressing said plungers to force the nail heads past said members.

4. In a heel building machine, nail-driv-' vided with means for releasably holding nails therein, spring-controlled plungers mounted above said support and adapted to force the nails therefrom, a movable member for depressing said plungers, and means carried by said member and adapted to be actuated by the operator to render inoperative any selected number of said plungers in the operation of said member.

5. In a heel building machine, nail-driving mechanism comprising a support provided with means for releasably holding nails, a series of spring-controlled plungers mounted above said support, a depressible member for actuating said plungers to cause them to engage the nails and force them out of said holder, said member being provided in its bottom with recesses in line with the upper ends of said plungers, and a series of movable keys carried by said member and 7 provided with imperforate portions for engaging said plungers and with apertures which, by moving said keys, may be brought into alinement with said recesses whereby when any one of said keys is so moved the upper end of said plunger will enter said aperture and recess and will not be actuated in the operation of said member.

6. In a heel building machine, nail-driving mechanism comprising a support provided with means for releasably holding a series of nails, a series of spring-controlled plungers mounted above said support, a depressible member adapted to engage said plungers to force them into engagement with the nails whereby to release the latter, means operated by the machine for actuating said member, and a series of spring-controlled keys mounted on said member and adapted to be moved by the operator to render a selected number of said plungers inoperative in; the movement of said depressible member. v I

7. In a heel building machine, nail-driving mechanism comprising a support provided with means for releasably holding nails therein, a series of spring-controlled plungers mounted above saidv support, a spring-supported leverpivotally'mo-unted at one end above said plungers, and means operated by the machine for engaging the free end of said lever to depress the same whereby to push said plungers downward and cause them to engage and force the nails out of said holder.

8. In a heel building machine, nail-driving mechanism comprising a support provided with means for releasably holding nails therein, a series of spring-controlled plungers mounted above said support, a spring-supported lever pivotally mounted at one end above said plungers, a crank disk,

and a lug on said crank disk adapted in the revolution of the latter to engage the free end of said lever to depress the same whereby to cause said plungers tobe pushed doWn- Ward to engage the nails and release them from said support.

9. In a heel building machine, nailing mechanism comprising a nail-support having apertures provided With means for releasably holding nails therein, tubes supported beneath said apertures, each of said tubes having a slot in its side, and nail nesses. i WILLIAM WOLFE. Witnesses: I

STELLA HILL,

BRUCE S. ELLIOTT.

Copies of this patent may be obtained for five cents each, by addressing the commissioneriof Patents,

' Washington, D. c." r a

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