US323846A

US323846A - Machine for forming heads on shoe-nail strips

Info

Publication number: US323846A
Authority: US
Publication date: 1885-08-04
Anticipated expiration: 1902-08-04

Description

2N0 Model.) 2 Sheets-Sheet 1.

M. BROOK.

MACHINE FOR FORMING HEADS ON SHOE NAIL STRIPS. No. 323,846. Patented Aug. 4, 1885.

N. PETERS PhuluLiihngnpher. Walhingmm D13.

(No Model.)

2"SheetsSheet 2. M. BROOK. v

MACHINE FOR FORMING HEADS ON SHOE NAIL STRIPS.-

Wih-l E if E 5.

UNITED STATES FATENT OFFIC MATTHIAS BROCK, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO MOKAY 8t COPELAND LASTING MACHINE COMPANY, OF PORTLAND, MAINE.

MACHINE FOR FORMING HEADS ON SHOE-NAIL STRIPS.

SPECIFICATION forming part of Letters Patent No. 323,846, dated August 4, 1885.

Application filed August 4, 1884. (No model.)

To all whom it may concern.-

Be it known that I, MATTHIAS BROOK, of Boston, county of Suffolk, State of Massachusetts, have invented an- Improvement in Machines for and Methods ofUpsetting and Forming Heads upon Sole-Fastening Strips, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

In the manufacture of sole-fastening strips as heretofore practiced, wherein the nails of the said strip have had enlarged or upset heads connected together edge to edge, the web from which the heads are produced by an upsetting operation have been cut to leave head-forming projections, which have subsequently been upset while the web of the strip was held in a clamp. In accordance with my invention this previous notching of the upper edge of the web of the strip is dispensed with, and, instead, the straight upper edge of the web is acted upon at intervals by means of a narrow upsetting-tool, which indents or upsets only that portion of the web which is to enter into the head, leaving projections between the spaces and heads so formed, which projections are subsequently removed by a suitable cutter. One of the clamps is provided with means to move it laterally to effect the feeding of the strip, the said clamp preferably having a tooth to engage one of the shanks of the strip and aid in feeding the same.

Figure l is a plan view of a machine embodying my invention; Fig. 2, a sectional detail of the clamps; Figs. 3 and 4, inside views of the faces of the two clamps. Figs. 5 and 6 are respectively side elevation and top view of the strip in process of having its heads formed or upset. Fig. 7 is a front elevation of Fig. 1. Fig. 8 is a section on the line a; :12, Fig. 7 Fig. 9, details of the cutter; and Fig. 10 is a side elevation of the nail-support detached.

The frame-work A, of suitable shape to support the working parts, has bearings for the main shaft B, which is provided with usual fast and loose pulleys, B B and fly-wheel B 50 the said shaft having secured to it the disks C and D. The disk C has cut into one side the cam-groove b, the shape of which is shown by dotted lines, Fig. 8, and at its opposite side the said disk has a cam-groove, 0, shaped as shown in full lines, anda portion of the periphery of the said cam is cut away at two points to form cam-surfaces d d, as shown in Fig. 1, each of the cam-surfaces so formed being alike, thus to enable the disk provided with such cams to operate twice during each rotation of the said main shaft. The disk D has a portion cut away at one side (see Fig.

7) to form a cam, e. The stationary jaw f of the clamp is a block of steel provided with a recess or groove, 3, and let into the framework A, the said block being shown in Figs.

2 and 4 and by dotted lines in Fig. 8. The movable jaw of the clamp is a block, f, of steel, preferably serrated, asshown in Figs. 2 and 3, and provided, preferably, with a feeding-tooth, 4, the latter entering the groove 3 when the jaws are closed together. The jaw-member f is suitably bolted to the jawleverf pivoted atf on an ear, f, of a horizontallysliding carriage, E, held in suitable guideways of the frame-work A by the cap A, attached in place by the bolts a a. The carriage E has depending from it near one end a roller-stud, f, which latter is normally kept pressed against the disk D by a suitable spring, f Just below the meeting faces of the said jaws I have placed a nailsupport, 9, which is shown as an L-shaped lever pivoted at g, and acted upon by a spring,

g. The upper rounded end of the short arm of the said lever (shown in detail in Fig. 10, and imperfectly, but in position, by dotted lines, Fig. 7) acts directly against the points of the shanks h of the comb nail-strip, the said shanks (see Fig. 5) being connected by a 9 web, h, of substantially uniform width and thickness, or straight at the upper side of the said web, instead of notched. The nail-support 9, acted upon as described, serves to keep the upper edge of the web h against the under side of the gage m, preferably attached to the frame-work A by a screw, m. The distance of the under side of the said gage above the top of the jaws f f 2 determines the amount of the web of the strip which is to project above the jaws in readiness to be upset by the upsettingtool n, attached by the plate a and bolt a to the L-shaped slide or tool-carrier n Said tool-carrier is guided vertically in the frame-work, as best shown in Fig. 8, and provided with a roller-stud, a which enters the can'rgroove 0, before referred to, the latter cam causing the positive ascent and descent of the tool-carrier, with its attached upsettingtool, to cause the same at the proper times to strike the upper straight edge of the web h, as illustrated in Figs. 5 and 6, to indent and upset a portion of the said web to form enlarged heads h extending from each side of the said web, as best shown in Fig. 6, leaving portions of the said web projecting like teeth, as shown at 7L3, Fig. 5. The projections h are immediately afterward cut away from the Web at a point below the levels of the formed heads h, leaving spaces h. The projections h are cut away intermittingly by a punch, 0, at tached by bolt and clamp 0" 0" to a slide or carriage, 0, of dovetail shape fitted into a groove at one side of the stationary part A of the frame-work. This slide 0 has at one side of it a projecting roller-stud, 6, which is embraced by the forked upper end of the out ter-moving lever 0, pivoted at 0 in the frame work A, and having at its lower end the rollcr-stud 0, which latter enters the cam-groove Z), before referred to. Immediately after the upsetting of the web to form a head, and the cutting away of the projection or tooth h the disk G in its rotation brings one of the camdepressions d or d under the roll 7 of the level-f, permitting the said lever to release the grip of the jawf", and at the same time withdraw the tooth 4 from between the nailshanks integral with the web of the strip, and directly thereafter in the rotation of the disk D the cam'reeess a therein arrives opposite the rollerstud f 6 of the carriage E, thus permitting the spring f to act and pull the carriage E in the direction of the arrow thereon, thus placing the tooth 4 of the jaw f in line just back of the shank of that nail which at the next movement of the upsetting-tool is to have a head formed for it, the said strip being, however, moved one step by the means above described before the upsetting-tool descends. The movement of the lever f 3 to enter the tooth 4 between the shanks, as stated, is effected while the roll 7 is upon the outwardly-inclined portion of one of the camsurfaees (Z or (1. As soon as the part 10 of the disk strikes the roll 7, the lever f is turned sui'liciently to cause the jaw f to place the strip upright and nip the same gently between itself and the jawf. The disk at the point 10 is of smaller radius than at the point 12, and while the roll 7 is on the part 10, of smallest radius, the depressed part c of the disk 1) passes beyond the roller-stud f and causes the said disk to move the carriage-lever f" and jaw f so that the latter, acting against the comb nail-strip, feed it for the proper distance between the jaws. The strip having been fed, the truly circular part of the periphery 12 of the disk 0 acts on the roll 7, and causes the lever f to move the jaws and clamp and hold the web of the strip firmly while the upsetting-tool descends, as described. The roll 7 of the lever f is normally kept against the disk 0 by a spring, 25, fastened to one of the ears f and acting on a pin, 26, of the said lever. The guidewayin the frame-work in which the comb nail-strip is moved is covered by a cover, 27, located at that side of the punch a from which the comb-strip comes.

I have herein described a method of heading comb nail-strip, which consists in upsetting the straight edge of the said strip to form heads at proper intervals, and then cutting away the parts of the edge of the strip be tween the parts upset for the main part of the head; but the said method is not herein claimed, as it forms the subject-matter of another application.

I claim 1. In a machine for upsetting and forming heads on comb nail-strips, a stationary clamping member, a lever, f, and attached movable clamping member to clamp the web of the comb nail-strip between them, and a carriage on which the said lever is mounted, combined with means, substantially as described, to operate the said lever and carriage, whereby the strip may be clamped and fed, substantially as described.

2. The clamping members and the springheld strip-support, combined with the gage, to operate substantially as described.

3. The jaws to clamp the web of the strip, and an upsetting-tool to indent and upset parts of the web at intervals, leaving a projection at one side of the said upset portion combined with a cutter to cut away the said projections, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

MATTHIAS BROCK.

Vitn esses:

G. W. GREGORY, \V. H. SIGSTON.