US454726A - Heel-nailing machine - Google Patents

Description

-ing from the spirit of my invention.

Y STATES PATENT. OFFICE.

VILLIAM J. FAHNLEY, OF LYNN, ASSIGN OR TO JOHN Q.. A. lVI-HTTEMORE,

OF BOSTON, MASSACHUSETTS.

HEEL-NAILING MACHINE.

SPEIFICATION forming part of Letters .Patent N o. 454,726, dated June 23, 1891. Application iiled October 24, 1890l Serial No. 369,186. (No model..`

To LZZ whom t may concern:

Be it known that I, WILLIAM J. FAHNLEY, a citizen of the United States, and a resident of Lynn, in the county of Essex and State of Massachusetts, have invented new and useful Improvements in Heel-Nailing Machines, of which the following, taken in connection with the accompanying drawings, is a specitication.

This invention relates to improvements in heel-nailing machines; and it consists in improvements in the jack and means for adjusting the shoe on the last relative to the drivers, as will hereinafter be more fully shown and described, reference being had to the accompanying drawings, where Figure l represent-s a front elevation of a heelnailing machine provided with my improvements. Fig. 2 represents a vertical longitudinal section on the line X X, shown in Fig. l. Fig. 3 represents a detail perspective View of the adjustable counter-guard. Fig. 4 represen ts detail plan view of the improved last; and Fig. 5 represents a cross-section on the lin'e Y Y, shown in Fig. a.

Similar letters refer to similar parts wherever they occur on the diiferent parts of the drawings.

a is the frame or standard of the machine, in a bearing in which is journaled, as usual, the driving-shaft b, provided with a cam B, which actuates a lever C and causes it and the plunger D to move upward, when the treadle c is depressed, in a manner as shown and described in the patent granted to me May 13, 1890, No. 428,044, for heel-nailing machines. I wish to state that the mechanism for raising `and lowering such plunger and the jack connected to it forms no part of my present invention, as any suitable mechanism may be used for this purpose without depart- The said plunger' D is shown as being internally screw-threaded and adapted to receive the adjustable screw-threaded rod D', having a head or projection D in its upper end, to which is pivoted at f the jack F, as usual.

The upper end of the jack F carries my improved last, which is constructed as follows:

5o It consists of a base portion G, detaohably secured .in any suitable manner to the upper end of the said jack F, as shown. Upon the part G is guided and laterally yielding the shoe-support g, having preferably a dovetailed recess g on its under side, adapted to receive a correspondingly-shaped dovetailed rib G onthe upper side of the part G, as shown in Fig. 5. g is a stop projection on the shoe-support g, which is normally held 1n contact with the forward end of the base G by the influence of a suitable spring 7i, inter` posed between said parts G and g in such a manner as to hold the projection g with a yielding pressure against the front end of the part G, as shown in Fig. 2. It will thus be seen that the shoe-support g is capable of a horizontal sliding motion upon the partl G, for the purpose of permitting it to be adjusted againstV the counter-guard, according to variations in the thickness of the shoe upper and counter during the nailing operation, thus allowing the jack at all times to be swung into a vertical position with its lower end resting squarely upon the head or projection D, b y which the breaking of the jack where it 1s connected to said head D is entirely prevented. In connection with said improved last I use a counter-guard 7c, which is horizontally adjustable upon the upper end of the counter-guard carrier K, the lower end of which is secured in a suitable manner, preferably, to the head D", as shown in Fig. 2. The counter-guard carrier K is guided relative to the frame a during its up-and-down motion, preferably by means of a headed guide pin or screw a', secured to the frame a and passing loosely through a slotted perforation K in said carrier K, as shown in Figs. 2 and 3. The counter-guard lo is preferably secured to the counter-guard carrier K by means of a set-screw or thumb-screw 7o', passing loosely through a slotted perforation c. in said counter-guard and screwed into the upper end of the said carrier, as shown in said Figs. 2 and 3; but such adjustment may be 9 made by other or equivalent means, if so desired, without departing from the essence of my invention. The said counter-guard partakes of the vertical motion of the jack and Serves for the purpose of properly adjusting IOO the shoe on its last relative to the drivers H, according to variations in the shapes of the heels to be nailed.

In using the machine the counter-guard is adjusted in position so as to cause the nails to be driven properly into the heel when the shoe-counter is brought in contact with said counter-guard. The shoe is placed upon the last when the jack is swung forward out of operative position, as usual, after which the jack is swung into its vertical working position,a and in so doing the shoe-support gis free to yield slightly forward, when the shoecounter is pressed against the counter-guard, so as to permit the lower end of the jack to rest squarely on the head or projection D, irrespective of variations in the thickness of the shoe upper or its counter, as hereinbefore mentioned.

By having the counter-guard arranged to move up and down with the jack the shoeupper is prevented from injury or abrasion during the nailing operation.

Having thus fully described the nature, construction, and operation of my invention, I wish to secure by Letters Patent and claiml. In a heel-nailing machine, the combination, witha swinging jack y having its upper portion provided with a rectilinear rib, of a horizontal sliding shoe-support having a rectilinear groove engaging the rib, a spring connecting the ribbed portion of the jack and the shoe-support and permitting the latter to yield, and a stop for limiting the inward movement of the shoe-support under the influence of the spring, substantially as described.

2. In a heel-nailing machine, the combination, with a pivoted swinging jack, of a last carried by the upper end of the jack and composed of the base Gr, detachably secured to the jack, and the horizontally-yielding springpressed shoe-support g, having a tongue-andgroove connection with the said detachable base, substantially as described.

In testimony whereof I have signed my name to this specitication, in the presence of two subscribing witnesses, on this 15th day of October, A. D. 1890. l

WILLIAM J. FAHNLEY.

Witnesses:

ALBAN ANDRN, Amon A. PERKINs.

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