USRE4975E - Improvement in nailing or pegging machines - Google Patents

Description

J. B. CROSBY.

Improvement in Nailing and Pegging Machines.

Reissued Ju|y16,1872

FIG. 2.

FIG. 1.

UNITED STATES PATENT OFFICE.

JOSEPH B. cnosnv, on nosron, MASSACHUSETTS.

IMPROVEMENT IN NAILING OR PEGGING MACHINES.

Specification forming part of Letters Patent No. 87,473, dated March 2, 1869 reissue No. 4,975, dated July 16, 1872.

Specification describing Improvements in Soling Boots and Shoes, invented by J OSEPH B. CROSBY, of Boston, Suffolk county, in the State of Massachusetts.

In that class of machines designed for makin g use of wire-like material, from which short lengths are cut and driven into the soles of boots and shoes to secure them to their Vamps, it is a desideratum to make each length proportioned to the thickness of the material where the fastening is inserted, in order to prevent waste of the pegging' or nailing material, to save labor in getting rid of inwardlyprojecting peg or nail ends, and to leave the inner surface of the inner sole smooth and free from projections. This may be accomplished by making use of what is well known in solesewing machines as a horn, modifying it so that its salient end is solid,1ike an anvil-face, and arranging the horn so that it can move toward and from the presser-foot or the end of.

the nail or peg tube of a pegging or nailing mechanism, and so that the thickness of the sole of a boot or shoe is calipered between the horn end and the end of the peg or nail-tube or the presser-foot, the horn receiving and resisting the blows or thrusts necessary for the insertion of the pegs or nails, and being so arranged and connected with the mechanism which feeds the Wire-like peggin g or nailing material as to vary the successive feeding movements of the wire, and cause them to supply to the cutting and driving mechanism lengths corresponding to the varying thickness of the sole at the parts that are brought successively over the end of the horn, which is inserted in the boot or shoe, with its anvil-face bearin g against the inner surface of the inner sole.

In the drawing, Figure 1 shows, in side elevation, a machine embodying my invention; Fig. 2 being a front elevation of the machine, and Fig. 3 being a partial rear elevation of the same.

- a represents the standard of a nailing or pegging machine adapted to cut from wire-like material pieces of short lengths to be forced into soles in the construction of boots and shoes; but, in place of the jack adapted to carrying and properly presenting a last covered with a boot or shoe to the peg or nail driver,

I mount on the weighted lever b, to which said jack was formerly attached, a born, 0, so that the horn end can be moved toward and from the end of the peg or nail tube or the presser-foot d. The horn is fixed on the shaft 6, which is guided in bearings ff fixed to the standard a, the lower end of the horn-shaft being stepped in a groove in the weighted lever 1). In the head 9 of the pegging or nailing machine are jonrnaled two parallel shafts, on which are fixed two grooved wheels, h i, so that when the wire-like material, which is preferably supplied from a reel attached to the machine, is introduced into the bite of the grooved wheels, it will be fed down to the cutters when motion is givento the wheels h ior either of them in the proper direction. On the other end of the shaft of wheel h is pivoted an arm, j, one end of which is vibrated at the proper times and to the necessary extent by connection with the shaft, which works the pegging or nailing mechanism, which is not shown, as it constitutes no part of my present invention. To the other end of arm j is pivoted a pawl, k, which meshes into and turns a ratchet-wheel, l, fixed on the shaft of the wheel h. There is also pivoted on said shaft a shield, m, which projects over part of the ratchetwheel teeth, so that if any part of the projection comes beneath the end of the pawl in its stroke the action of the pawl on the ratchetwheel' is diminished. The shield m has an arm, by which, through the link a, it is connected to the weighted lever b, so that the position of the part of the shield which projects over the ratchet-teeth with reference to the pawl is dependent upon the position of the horn with reference to the tube or presser d.

To adjust the parts thus working in combination, the link a is made adjustable in length, and is also made adjustable as to the distance of its connection from the axis, about which the shield turns.

It will be seen that, as the horn end approaches the end of tube or presser d, the shield is advanced under the pawl, thus lessening the length of the wire fed to the sole, and, as the horn end is removed-from the tube end, the shield recedes under the pawl, thus increasing the feeding movement of the wheel h and the length of the wire supplied to the sole. By

suitable adjustments by the means described the feed of the wire-like material can be made equal to the distance between the ends of the horn and tube, or slightly in excessor in diminution of such distances.

1. In soling boots and shoes with nails, pegs, or pins cut from wire-like material, and where the thickness from outside to inside of the soles varies the process of uniting the uppers and soles by nails, each having a length autcmat ically made to correspond to the thickness of the parts at the point to be united by it.

2. The arrangement of the feed mechanismof the wire-like material, substantially as described, to change the amount of the feed without checking the action of the machine.

JOSEPH B. CROSBY.

' Witnesses: v

S. B. KIDDER, L. H. LATiMER.

Images