US354878A - Nail-setting machine for boots and shoes - Google Patents

Description

No. 354,878. Patent-ed Dec. 21, 1886.

W FL.

Wi y W NITED STATES PATENT OFFICE.

WILBUR F. WRIGHT, OF NASHUA, NEW HAMPSHIRE.

NAIL-SETTING MACHINE FOR BOOTS AND SHOES.

ESPECIFICATION forming part of Letters Patent No. 354,878, dated December 21., 1886.

Application filed October 6,1886.

Serial No. 215,457. (No model.)

Nashua, in the county of Hillsborough and State of New Hampshire, have invented a certain new and useful Improvement in NaiLSetting Machines for Boots and Shoes, of which the following is a specification.

My improvement relates to machines for automatically setting nails in boot or shoe soles or heels, or in perforated forms for soles or heels, and is an improvement on the nailcarrier shown in Patent No. 198,590, dated December 25, 1877, theobject of said improvement being to render the quarter-turn hole in said carrier adjustable for nails of different sizes.

In the accompanying drawings, Figure 1 is a plan of a nail-carrier provided with my improvement, representing the slide as drawn out to enlarge the quarter-turn hole; Fig. 2, an isometric view of a portion of a nail-carrier near its front end provided with my improvement, the slide not being drawn out. Fig. 3 is like Fig. 2, except that the slide is represented as drawn out; Fig. 4., a plan of the parts shown in Fig. 3, and occupying the position shown in said Fig. 3; Fig. 5, a plan of the slide detached; Fig. 6, a front end elevation of the carrier and slide; Fig. 7, a vertical section on the line :0 x in Fig. 4.

The nail-carrier herein described is intended to be like the nail-carrier shown in said patent in all respects, except as hereinafter mentioned, and is used in connection with the other parts of the nail-setting machine therein shown and described, the purpose of said machine being to introduce the nails point first into the work previously perforated, or into a perforated form, the nails to be operated on by the machine being of the well-known wedgeshaped form cut from sheet metal, and caused -to advance on said carriers by a longitudinal reciprocating motion imparted to said carriers, whereby the nails are in turn carried over an opening or quarter-turn hole until the weight of the head projecting over the hole causes the nail to overset and drop head first through said hole into a feed-channel, as may be fully understood by a reference tosaid patent. It is evident that if the quarter-turn hole he too short or the nail be too long the nail will reach across said slot and rest upon the other side, because the weight of said nail,

or rather of that part of it which projects over k said hole, will not be sufficient to overset the nail before the head of the nail will arrive at the other side of the hole and be supported thereby.

In the drawings, b represents the nail-carrier;-p, a converging groove that ascends from the rear of the machine toward the central part of the carrier, there terminating in a groove, q, only wide enough to allow a single nail to pass at a time; r, a diverging groove into which the surplus of nails overflows; s, a waste -vent through which the superfluous nails are allowed to'escape; t, the quarter-turn hole lying in the groove q, or an enlargementthereof, into which hole the nails, if moving head first, drop, as above stated, the nails which are moving point first reaching over to the other side of said hole until the head of the nail gets over said hole, and the weight of said head causes these last-named nails also to fall head first into said hole. These parts all operate in the usual manner, provided the nails used do not exceed a certain length; but when the nail is so long that the weight of the part of the nail which projects over the hole is not sufficient to overset it the nail continues to move on past said hole.

Heretofore in changing from the use of nails for which the machine was specially adapted to a much longer nail it has been necessary to remove the carriers 1) and substitute for them other similar carriers having a longer quarterturn hole. My improvement obviates the necessity of changing the carriers when chang ing from nails of one length to nails of another.

It will be observed that to adapt the carrier b to the use of nails of greatly-varying lengths it is not sufficient to make the quarter-turn hole long enough to operate in the desired manner upon the longest nails, because if said hole were permanently lengthened to operate successfully upon the longest nails it would allow shorter nails to fall point first if y make the carrier 1) in two parts by forming a slide, to which is secured the part g, which forms the bottom of the groove q in front of said hole t, and to which is also secured the projecting inclined piece '0, by which the nails which pass the quarter-turn hole are delivcred onto another carrier and again circulated, as described in said patent.

The slide w, which carries the parts g 1:, is mortised into said carrier b, and is free to slide thereon to enable it to be drawn out from the body of the-carrier, the mortise b in said carrier having its top and bottom parallel with each other, and the slide 10 having a tenon, 10, which enters said mortise, and which is provided with a'vertical slot, w, Figs. 5 and 7, through which a screw, 1)", is passed down from the top of said carrier through said mortise into the bottom of the same, the screw turning loosely in said carrier above said mortise, and when turned down sufiiciently drawing the top and bottom of the mortise in close contact with the top and bottom of said tenon and holding the slide in position. The part g, which forms the bottom of the groove qbetween the quarter-turn hole and the incline 0, guides the slide and prevents it from turning horizontally, said part q being as wide as said quarter-turn hole.

It is evident that drawing out the slide, as indicated in Figs. 3 and 4, lengthens the quarter-turn hole and adapts it for use in the manner above described upon nails of greater length. v

I claim as my invention 1. In a nail-setting machine, the carrier provided with a nail-groove and with a quarterturn hole arranged in said groove and adjustable in length by means substantially as described, to adapt it to operate upon nails of different lengths, substantially as and for the purpose specified.

2. The carrier provided with a quarter-turn hole, said carrier consisting of the combination of the body ,of the carrier and a slide adapted to move in said body, said quarterturn hole being formed partly in said body and partly in said slide, whereby the length of said quarter-turn hole may be varied by the movement of said slide, said quarter-turn hole being arrangedin a nail-guidinggroove which is continuous in said body and said slide, as and for the purpose specified.

3. The combination of the body of the carrier provided with a mortise, and the slide provided with a tenon to enter said mortise, and with a longitudinal slot, and ascrew tnrning in said body and passing through said mortise and through said slot in said slide, to allow said slide to be adjusted when' said screw is loosened,and to contract said mortise to prevent said slide from moving when said screw is tightened, said body and slide being provided with a continuous nail-groove, and with a continuous quarter-turn hole arranged at the bottom of said nail-groove and formed partly in said body and partly in said slide, to vary the length of said quarter-turn hole, and

to adapt said carrier to be used with nails of difi'erent lengths, as and for the purpose specified. 1 In witness whereof Ihave signed this specification, in the presence of two witnesses, this 4th of October, 1886.

WILBUB F. WRIGHT.

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