US517027A

US517027A - Shoe-nailing machine

Info

Publication number: US517027A
Authority: US
Publication date: 1894-03-27
Anticipated expiration: 1911-03-27

Description

- (No Model.) 5 Sheets-Sheet 1f 4 E. D. OHILDS.

SHOE NVAILING MACHINE,

No. 517,027. Patented Mar. 27, 1894.

I 5 SheetsSheet. 3.

(No Model.)

B. D. GHILDS;

- SHOE NAI-LI NG MACHINE.

No. 517,027. Patented Mar. 27, 1894.

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(No Model.) 5 Sheets-sum 4.

E. D. OHILDS.

SHOE NAILING MACHINE. No. 517,027. Patented Mar.27, 1894.

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(No Model.) 5 Sheets-Sheet 5; f

B. D. GHILDS. SHOE NAILING MACHINE.

No. 511,027. Patented Mar, 27, 1894.

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.UNITED STATES PATENT QFFIGE.

EDWARD D. OHILDS, 0F MILWAUKEE, WISCONSIN.

SFHOEA-NAILINGF MACHINE.

SPECIFICATION forming part of Letters Patent No. 517,027, dated March 27, 1 894. Application filed May 24,1893. Serial No. 475,305. (No model.)

To all whom it may concern..-

Be it known that I, EDWARD D. CHILDS, a citizen of the United States, and a resident of Milwaukee, in the county of Milwaukee, and in the State of Wisconsin, have invented certain new and useful Improvements in Shoe- Nailin'g Machines; and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention relates to new and useful improvements in shoe-nailing machines, and consists in the matters hereinafter described and pointed out in the appended claims.

In the accompanying drawings illustrating my invention: Figure 1 is a side elevation of my improved machine. Fig. 2 is a central vertical sectional view of the same. Fig. 3 is an enlarged front elevation of a part of the wire feeding and cutting mechanism showing portions in section on line 3-3 of Fig. 7. Fig. 4. is a horizontal sectional view taken on line 44 of Fig. 3. Fig. 5 is a horizontal de tail sectional view taken on line 5-5 of Fig. 7. Fig. 6 is a similar view taken on line 6-6 of Fig. 7. Fig. 7 is a vertical sectional view of a portion of the wire feeding mechanism. Fig. 8 is a detail side elevation of one of the supports for the wire feeding rolls. Fig. 9 is a detail sectional View of one of the wire cutting jaws taken on line 9-9 of Fig. 11. 'Fig. 10 is a view partly in plan and partly in horizontal section, of the devices for throwing the wire feeding mechanism into and out of operation. Fig. 11 is a front elevation showing parts broken away, of the wire cutting mechanism and the lever for actuating the same.

Fig. 12 is a vertical sectional view of the same taken on line 12-12 of Fig. 11. Fig. 13 is a detail cross sectional view of the mechanism for producing a vertical reciprocation of the machine head. Fig. 14 is a detail view of the device for actuating the wire cutting jaws.

Fig. 15 is a partly broken plan View of the mechanism for feeding the work forward, and regulating the space between the nails. Fig. 16 is a detail view of a part thereof partly in section on the line 16-16 of Fig. 17. Fig. 17 is a vertical section on the line 17-17 of Fig. 15. Fig. 18 is a transverse section on the line 18-18 of Fig. v15.

Referring by letter to said drawings, A des-v i gn ates the main standard or post, upon which to the pulley O to drive the machine.

the operating mechanism is supported, B, the usual horn or anvil for supporting the work, which horn is revolubly supported upon suitable forwardly extending brackets B E the latter of which is conveniently provided with an adjustable step b for the vertical shaft or spindle b of said horn.

0 represents the drive pulley which is j ournaled loosely upon the outer end of a stud shaft 0 extending horizontally from one side of the standard A, and C a second wheel also looselyj ournaled upon said shaft and adapted to actuate the machine. A hand lever D is arranged upon one side of the standard A and is secured at its lower end to a transverse shaft 01 provided with a rock-arm D which latter engages with an eye 03 in the inner end of a rod d arranged to slide longitudinally in a central bore in the stud shaft 0. The outer end of this rod is secured to a movable block d which engages at its outer end with a cap D upon the outer end of the hub of pulley O, and at its inner end, engages with an annular interior flange in the end of said hub.

The drive pulley O has a beveled face 0' adapted .for engagement with a similarly beveled face 0 upon the pulley 0', whereby when said faces are in engagement with each other, motion will be transmitted from the pulley 0 By a movement of the leverD in one direction, the rod at will be thrust outwardly so as to crowd the drive pulley C away from the pulley C, a reverse motion of the lever obviously serving to press said pulley against pulley O. In this manner, the drive wheel maybe thrown into or out of engagement with the pulley O which operates the belt to drive the moving parts of the machine, so as to start or stop the machine in an obvious manner.

A vertically disposed rod or bar E is pivotally engaged at its lower end, as at c, with the inner end of a foot lever E which is pivoted to the standard A, at e, and is provided with the usual foot piece e and at its upper end said rod or barE is provided with asuitable-step for a revoluble vertically disposed shaft F, as in Fig. 2 of the drawings. This shaft is screw-threaded for a portion of its length as at f, for engagement with a suitable -nut F, which rests upon a suitable support within the standard A, and a spring f carrying a dog or pawl is arranged at one side of said support so as to normally press said dog f into engagement with the periphery of said nut, which is provided with a series of teeth or serrations as shown more particularly in Fig. 13 of the drawings. A cam F is carried by the shaft F, above the nut F and is arranged to intermittently press the spring f outward to free the nut from engagement with the pawl or dog f and to permit said spring to drop back so as to bring said pawl into engagement with the toothed periphery of the nut. The construction and arrangement of these parts are substantially the same as that described in the United States Patent No. 479,784, granted to me on August 2, 1892, and the alternate engagement and disengagement of the nut by said pawl, serves to produce a succession of up and down movements of said shaft F and the parts of the machine carried thereby. Upon the lower side of the machine head, I provide a suitable downwardly extending stud f for engagement with the end of the springf to disengage the pawl f when the machine head is at its lowest point and no work is in the machine, so as to prevent the head from being lifted and permitted to drop or pound upon the standard as would be the case were the spring pawl to remain in engagement with the nut.

Upon the upper end of the shaft F, is secured a gear G which meshes with and is actuated by a gear G upon the lower end of a vertical shaft 9 journaled in the machine head and upon the upper end of which is secured a bevel pinion G meshing with a bevel gear G upon a horizontally disposed shaft g also journaled in the head and carrying, at its other end, a suitable worm wheel H actuated by a worm h upon a vertical shaft or spindle 1-1 which carries upon its upper end a suitable holder or reel h for wire, and is provided with a longitudinal bore 7L2 for the passage of the wire to the feeding devices.

Upon the horizontal shaft g are arranged two cam wheels G and G respectively, adapted for engagement with the feed actuating lever, and the lever which actuates the wire cutting mechanism.

Upon the lower end of the shaft or spindle H is secured a carrier 11 within which the rolls which grip and advance the wire, are supported. This carrier may be secured in any desired manner to the spindle H, but is conveniently detachably engaged with the lower end thereof in the manner shown in Fig. 3, of the drawings, in which said carrier is shown as provided with a screw-threaded socket engaging with the correspondingly threaded end of said spindle. A rotary head I is also secured to the said spindle and carries two gear wheels 1' t' which are fast upon the upper ends of revoluble shafts I 1 arranged to extend downwardly through lateral bearing lugs t" t" on opposite sides of the carrier H and provided at their lower ends with worms 1' i Transversely arranged feed rollers J J, are journaled in the carrier H and having projecting spindles or axesjj carrying at their outer ends suitable worm wheels J J which are arranged to mesh with the worms 2' 2' on the shafts I I. Asleeve K is arranged upon the outside of the spindle H and is provided with a gear 7:; at its lower end, arranged to mesh with the gears 2' t' as shown more particularly in Fig. 4. Around the upper end of this sleeve is arranged a flexible strap L, which is secured at one end to the machine head, as at Z and is arranged to engage at times with said sleeve in the manner to be presently described, to hold said sleeve from rotation.

A rotary motion is imparted to the spindle or shaft ll by means of a pulley H which is keyed, screwed, or otherwise secured to the upper end of said spindle and around which the usual drive belt is trained, said belt being trained over the pulley C and idlers (J C and by the engagement of the worm h with the wheel H on shaft g a continuous rotation is imparted to said shaft and the cams G G carried thereby, so long as the pulley H and spindle H continue to rotate. Pivoted upon a bracket 17?. at the side of the machine head, is a lever M, provided at its upper end with a roller m arranged to rest against the face of the cam G as shown more particularly in Figs. 3 and 11, and this lever has an operative connection with the free end of the friction band L consisting of rod m spring m and nut m so as to pull said end outwardly whenever the upper end of the lever M is crowded outward by a rise in the face of the cam G The friction band or strap L is arranged to normally grip the upper end of the sleeve K by its own resiliency, and when free to so grip said sleeve, operates to hold the sleeve from rotation, thus serving to hold the gear upon its lower end stationary. It follows from this construction, that when the said sleeve and gear are heldfrom rotation, the rotary movement of the spindle H with the head I and the carrier l-l serves to carry the gears 2' t around the gear 70 so as to produce an independent rotation of said gearsz' t' upon their own axes in an obvious manner, and this rotation of said gears serves to actuate the worms 2' t and worm wheels J J to rotate the wire feed rollers J J to advance the strand of wire engaged thereby, but when said friction band or strap is drawn open by the described outward movement of the lever M, said sleeve K and gear 71; will be free to rotate with the spindle H as the head and gears thereon are carried around thereby, so that, at such times the feed rolls will be out of operation.

The cam G may be provided with any desired number of rises and intermediate depressions, and is of the same general construction shown in the prior patent previously mentioned, these alternate rises and depressions being madetapering from front to back of the cam, and the cam operatively connected with a longitudinally movable sleeve 9 having rack teeth for engagement with a revoluble pinion 9 having operative connection by means of a'crank g with a rod 9 secured to the top a of casting A at its lower end, and by this arrangement; the cam G is automatically adjusted upon the shaft 9 by a change of elevation of the head, so as to regulate the length of nails formed in the same manner as described in my aforesaid prior patent.

If desired, a suitable spring L adjustable as to tension by a screw L may be arranged to engage with the arm L of the friction band L to press the free end thereof inward and cause the said band to more firmly grip the sleeve K as desired. I also prefer to provide a rod N, revolubly supported in journals upon the side of the machine head, and provided with an eccentric stud a arranged to engage with the free end of the arm L as shown more particularly in Figs. 1 and 10, and further provided with an operating lever handle 72. By a rotation of this rod N so as to bring the eccentric stud n outward, the arm L may be pressed outwardly so as to free the sleeve K from engagement with the friction band L, and in this condition the said friction device and the feeding mechanism will remain unaffected by the movements of the lever M, and consequently the feeding mechanism will be held from operation; When the said rod is turned back into the position shown in Fig. 10 of the drawings,

however, the arm L is free to spring in so as to cause the friction device to come into op erative engagement with the upper end of the sleeve K, as before described.

The cutting mechanism for severing the Wire after it is inserted in the sole of the shoe, comprises a pair of jaws O 0 each provided with-a cutting blade 0 and said jaws being pivoted, as shown at 0, to a suitable supporting stud. Each of these jaws is provided with an upwardly extending lever arm 0, and these arms are arranged to extend upwardly adjacent to each other as shown in Fig. 11,- and are provided in their upper ends with depressions o o for the reception of an elliptical or oval stud P on the end of the shaftp of a partially toothed gear or pinion P which is mounted in suitable bearings in the head of the machine. A spring 0 is secured to the machine head by a screw 0 as shown in Figs. 11 and 12, and is provided with downwardly extending arms 0 0 having inner upward extensions 0 0 arranged to engage with the upper ends of the arms 0 O to press them together against said stud P. A lever Q is pivoted to the machine head as at q, and is provided at its upper end with a roller q arranged to engage with the cam G and at its lower end has a segmentalgear g engaging. with the pinion P. The spring arms 0 O normally press the arms 0 O of the cutting jaws together, thus keeping the cutting edges apart in an obvious manner, but when the roller (1 on the upper end of lever Q is engaged by a rise in the face of cam G said lever will be rocked on its pivotal support q, so as to partially rotate the pinion P and the stud P to spread the arms 0 and cause the cutting edges of the jaws O O to engage with the wire to sever the same.

As a further and separate improvement, I prefer to arrange the feed rollers J J so as to be adjustable to regulate their pressure upon the wire passing between them, and to this end, I journal said rollers in bearings r '1' in the lower ends of plates R R which are secured to opposite sides of the carrier H The upper ends of these plates are arranged to engage with the sides of the said carrier in the manner shown in Fig. 7 (at r r) of the drawings, and are provided with suitable ap ertures through which adjusting screws R" R are passed and which engage with threaded apertures in said carrier. said screws, the plates R B may be adjusted so as to press their lower ends inwardly to crowd the rolls J J together upon the wire i an obvious manner.

A spring Q is secured to the machine head, and exerts its pressure against the described lever Q, as shown in Figs. 3 and 11, to keep said lever against the cam G and aid in the rotation of the'pinion P.

The mechanism for feeding the workforward, and regulating the space between the nails is best shown in the detail views, Figs.

15 to 18, inclusive.

As in my prior patent, hereinbefore referred to, the upper part of the standard A consists of a hollow casting A having an up-' per horizontal extension 0,, for the support of the upper portion a of the machine-headraising-sleeve A (which sleeve is secured within the casting A by a feather, not shown, so as to freely reciprocate vertically, but be incapable of any rotary movement).

The top of the head-raising-sleeve A is provided with a groove a of circular outline having a lateral continuation extending to one edge of the portion 0, as best shown in Figs. 15 and 17, and up through the center of the circular part of said groove the hereinbefore described shaft F passes, and to this shaft, within said groove, is secured bya key f a horizontal cam-disk S, the top of which disk S is flush with the top and extension 0. of the head-raising sleeve A and the under side of which disk is provided with a cam-' groove 3. In the bottom of the groove a there is cut an arc-shaped slot a for engagement with a pin t projecting from the underside of the inner end of the feed-gage T which rests in and projects out from the described lateral continuation of the groove a. r This gage T isprovided with a "ertical longitudi- By tightening nal slot 25 therethrough in about the center 3 of ,its length, and beyond this with a longi-' tndinal recess 29, open to the outer end of said gage, to receive the adjustable feed-point U, whose outer projecting end is provided with teeth a u, and one edge of which is formed with rack-teeth, as shown at u, for regulat ing the degree of projection of said part U beyond the edge of the part T, by means of i the lever V pivoted as shown at v to an extension i of the part '1, and having a sectorshaped head V provided with teeth 1; for engagement with said rack-teeth.

W is an arm provided with a longitudinal slot to through which it is adj ustably secured to the under side of the extension a of headraising sleeve A by a screw to said arm resting in a slot a to prevent lateral movement, and having at its outer free end an upward projecting pivot-pin 10 for engagement within the described slot 15 of the gage T.

It follows, from the foregoing description of the construction of the gage and adjacent connecting mechanism, that the work placed upon the born or anvil B is fed laterally by the movement of the described gage, as the cam-disk is actuated by the shaft F, and every time the head lifts in the manner already described, the work is fed so as to bring a fresh point beneath the nailing mechanism, the distance between the nails being regulated by the adj ustmentof the arm W and its pivot w in or out from theinner end of the gage T, to vary the throw at the outer end of said gage, and the distance from the edge of the work to the nailing line being regulated by means of the projection of the part U, adjusted by the described lever V.

The operation of my improved machine is, in general, the same as that described in my said prior patent, with the exception of the described differences in the operation of the wire feeding mechanism and the devices for effecting an intermittent operation of the same, and the described differences in the construction and operation of the wire cutting devices, and by the gage and work-feeding mechanism.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination with the vertically movable head of a shoe-nailing machine, of a vertically disposed revoluble shaft journaled in the head, suitable wire-feeding mechanism carried by said shaft, a gear for actuating the wire-feeding mechanism, a suitable friction device for holding said gear from rotation and suitable means actuated by the driving mechanism for alternately throwing said friction device into and out of engagement with said gear, substantially as set forth.

2. In a shoe-nailing machine, the combination with the movable head, of a horizontal shaft revolubly journaled therein and carry ing a cam, a vertically disposed shaft also journaled in said head and carrying suitable wire-feeding mechanism, a sleeve loose upon said vertical shaft and provided at its lower end with a gear for actuating said wire-feeding mechanism, a friction device for engagement with said sleeve, and a lever operatively engaged with said cam for alternately moving said friction device into and out of engagement with said sleeve, substantially as set forth.

3. In a shoe-nailing machine, the combination with the movable head, of a horizontal shaft revolubly j ournaled therein and carrying a cam, a vertically disposed shaft also journaled in said head and carrying suitable wire-feeding mechanism, a sleeve loose upon said vertical shaft and provided at its lower end with a gear for actuating said wire-feeding mechanism, a friction band arranged to embrace said sleeve, an arm operatively engaged with said band, and a pivoted lever having operative engagement with said arm and engaged at one end with said cam to produce alternate inward and outward movements of said arm to cause the friction band to alternately grip and free said sleeve, substantially as set forth.

at. In a shoe-nailing machine, the combina tion with the movable head, of a horizontal shaft revolubly j ournaled therein and carrying a cam, a vertically disposed shaft also journaled in said head and carrying suitable wire-feeding mechanism, a sleeve loose upon said vertical shaft and provided at its lower end with a gear for actuating said wire-feeding mechanism, a friction band arranged to embrace said sleeve, an arm operatively engaged with said band, a pivoted lever having operative engagement with said arm and engaged at one end with said cam to produce alternate inward and outward movements of said arm to cause the friction band to alternately grip and free said sleeve, and suitable means under the control of the operator for securing said arm at the limit of its outward movement, to permit the sleeve and its gear to run freely within said friction band, substantially as set forth.

5. In a shoe-nailing machine, the combination with the machine head and wire-feeding mechanism carried thereby, of suitable jaws pivotally engaged at their lower ends with the machine head and carrying cutting edges arranged upon opposite sides of the path of the wire adjacent to the pivotal point of said jaws, lever arms extending from the pivotal support of said jaws, a revolnble shaft, journaled in said head and provided with an eccentric or elliptical stud extending between the upper ends of said lever arms, a pinion on said shaft, and a pivoted lever operatively engaged at one end with the operating mechanism, and carrying at its other end a segmental gear meshing with said pinion, substantially as set forth.

6. In a shoe-nailing machine, the combination with a suitable support for the work, a vertically movable revoluble shaft, and a machine-head-raising sleeve vertically movable therewith, said sleeve being provided w1th a groove in its top surface, of a camdisk fast on said shaft and located in said groove and provided with a cam-groove in one of its faces, and a feed-gage also located in, and projecting from, said sleeve-groove, and in operative engagement with said camgroove, and with an adjustable pivot, for feeding the work forward, and regulating the distance between the nails, substantially as set forth.

7. In a shoe-nailing machine, the combination with a suitable support for the work, a vertically movable revoluble shaft, and a maehine-head-raising sleeve vertically movable therewith, said sleeve being provided with a groove in its top surface, of a camdisk fast on said shaft and located in said Witnesses:

H. G. UNDERWOOD, C. A. Soorr.