US224025A - Machine for leveling and surfacsng heels - Google Patents

Description

V 2 Sheets-She-et 1. G. McKAY 8: H. P. FAIRPIELD. Machine for Leveling and Surfacing Heels.

No 224 025. Patented Feb. 3, 1880.

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GORDON MGKAY, OF CAMBRIDGE, AND HADLEY P. FAIRFIELD, OF WEST MEDFORD, MASSACHUSETTS.

MACHlNE FOR Lei/Erase AND SURFACBNG Heats.

SPECIFICATION forming part of Letters Patent No. 224,025, dated February 3, 1880.

Application filed November 26, 1879.

To all whom it may concern Be it known that we, GORDON MGKAY, of Cambridge, and HADLEY l FAIRFIELD, of West Medford, both in the county of MiddleseX and State of Massachusetts, have invented an Improvement in Machines for Leveling or Surfacing Heels, of which the following description, in connection with the accompanying drawings, is a specification.

This invention relates to mechanism for lev-.

cling or surfacing heels, either before or after they are randed, the object being to level the tread preparatory to applying the top-lift, whilch is the last lift added to the completed hee In this our invention the heel, prefenbly randed, is placed in a die, the bottom of which is shaped to fit the heel-seat of the heel within the rand, and clamped firmly in the said die. It is moved under a cutting-blade, and the small or unranded part of the heel projecting above the die is cut off and leveled, after which, on the further movement of the table carrying the die, the bottom of the mold is loosened and dropped down to discharge the leveled heel.

Figure 1 represents, in side elevation, a machine embodying our improvements; Fig. 2, a top view thereof; and Fig. 3, a sectional detail taken through the presser and its rollers and the cutting-blade and its holder on dotted line 00, Fig. 1. i 4

The frame-work a, of suitable shape, has bearings for the main driven shaft b, provided with fast and loose pulleys, and with a bevelpinion, c, to engage the bevel-toothed gear cl on a vertical shaft, 0, to which is attached the rotating table f, upon which are mounted the several molds which receive, hold, and carry the heels to be surfaced or leveled under the cutter or blade 9, secured to the stock h, adj ustably attached by screw t to the bracket j. The edge of the cutter g is made to terminate more or less near the roller 2 of the pair of rollers 2-3, attached to and forming part of the presser k, the shank or stem of which is held down by the spring Z, which surrounds it.

The descent of the presser is controlled by adjusting devices, shown as nut-s, m, to adapt it to the thickness to be left for the heel.

The bottom pieces or beds, a, of the dies,

provided, as herein shown, with raised centers n, having beveled edges 4, to thereby form a projecting surface to enter the heel-seat concavity formed at one end of the heel by the addition of the usual heel-rand, by nailing or in any usual way, are hinged or pivoted a one end to the rotating bed f.

The bottom pieces are held up in horizontal position by the surface of the top plate 0, upon which they bear and travel as the bed rotates, except for a short distance just after each mold passes the cutters, where an open space in the top plate permits each bottom piece, a, to fall, as denoted in Fig. 1, when the surfaced or leveled heel is discharged. Further rotation of the table f in the direction of the arrow on it causes the bottom piece to strike the inclined central portion, 10, of the stationary top plate, 0, which again lifts the bottom piece into posit-ion. The mold, beside this bottom piece, is composed of a crotch or fork, 6, adjustably attached to the bed f by a screw, 7, the crotch fitting the rear part of the edge of the heel, and of a clamping-lever, 8. 'Each lever, atits free end, is acted upon by a spring, 10, herein shown as a spiral spring, made compressible on a rod connected with an ear, 12, attached to the bed f, to movethe lever away from the breast of the heel; but this lever is moved positively in the opposite direction, to clamp and hold the heel firmly while being carried under the cutter, by a lever, r, pivoted at 13, and having at its end rollers 14 15. These rollers 14, as the table rotates, strike the camprojection s and turn the levers, causing them, by their roller ends 15, to force the levers against the breasts of the heels and crowd them into the forks and hold them firmly in position while being surfaced. As the rollers ltpass beyond the cam-projection 0 the springs 10 move the levers 8 away from and release the heels, so that they can drop out as the bottom pieces are permitted to fall, as described. The

bed f being rotary, thepresser-r'ollers are made truncated, so as to roll properlyover the heel end.

It is obvious that the form of the forked pieces 6 and levers S, forming part of the molds, may be differently shaped, as may also be the lever 8, without departing from our invention.

Vi e claim-- 1. A movable bed and the molds to hold the heels and clamp them firmly therein, combined with a presser to bear upon and a cutter to remove a part of the said heel to surface or level 5 it, substantially as described.

2. The movable table provided with the bottom pieces, the holders for the rear parts of the heels, and clamping-levers, combined with mechanism, substantially as described, to act- IO nate the clamping-lever to hold the heel firmly while being cut off at one end.

3. The movable table and its attached pivoted bottom pieces for the molds, combined With'the top plate having an opening to per- 15 mit the bottom pieces to fall at the proper

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