US434333A - Heel-breasting machine - Google Patents

Description

(No Model) 3 Sheets-Sht 1.

W. GORDON.

HEEL BR-BASTING MACHINE.

N0. 43.4.3213. Patented'Aug. 12, 1890.

(No Model.)

FUSE. 7'

mmi;

\A/ITNESEEE- W.GORDON. HEEL BREASTING MACHINE.

3 Sheets-Sheet 2.

Patented Aug. 12, 1890. J

INVENTEIR- UNITED STATES PATENT OFFICE.

WILLIAM GORDON, OF BOSTON, MASSACHUSETTS.

HEEL-BREASTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 434,333, dated August 12, 1390.

Application filed November 14, 1889. Serial No. 330,254. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM GORDON, of Boston, in the county of Suifolk and State of Massachusetts, have invented certain new and useful Improvements in Heel-Breast-ing Machines, of which the following is a specification.

This invention relates to that class of machines for breasting or trimming ofi the front edge or breast of boot and shoe heels in which the boot or shoe having the heelto be breasted is pressed against the breasting-knife, the latter being supported against the pressure exerted upon it by the heel, the boot or shoe being placed upon a jack under the knife and raised by any suitable system of foot or other power and brought into contact with the edge of said knife, and forced upwardly to perform the cutting or breasting operation. Heretofore in machines of this class the breasting-knife has been rigidly held so that it could not move in any direction, so that the cutting has to be performed by the direct pressure of the leather against the knife, an operation which requires the exercise of a considerable degree of force and causes rapid wear of the cutting-edge of the knife.

My invention has for its object to provide a machine of this class with means whereby the knife may be given a reciprocating movement during the cutting action, thereby securing a double cutting action, the heel being pressed against the knife in the usual manner and receiving also the cutting action due to the reciprocating motion of the knife.

To these ends the invention consists in the improvements which I will now proceed to describe.

Ofthe accompanying drawings, forming a part of this specification, Figure 1 represents a side view of my improved machine. Fig. 2 represents a front View of the same. represents an enlarged top View of the knifeoperating devices. Fig. at represents a section on line 1 1, Fig. 1.- Fig. 5 represents a section on line 3 3, Fig. 3. Fig. 6 represents a section on line 3' 3, Fig. 3. Fig. 7 represents a section on line to m, Fig. 3; Fig. 8 represents a section on line 5 5, Fig. 3. Fig. 9 represents a section on line 6 6, Fig. 6 5 and Fig. 10 represents a rear view of a portion of the machine.

Fig. 3

The same letters and numerals of reference indicate the same parts in all of the figures. In carrying out my invention I provide a standard a, having on its upper end bear-- g represents the breasting-knife carrier,

which is here shown as a bell-crank lever pivoted at it between two arms c'j formed 011 or attached to the standard a. v Said carrier is provided at its inner end with a socket k, which is bored out to receive a bushing or bearing Z for the eccentric wrist or crank f, the arrangement being such that when the shaft d, on which said wrist is formed, is rotated the carrier 9 willbe rocked on the pivotpin it, as will be clearly understood by reference to Figs. 3 and 4.. The bushing Z is moved vertically in the end of the carrier as the shaft d rotates, and at the same time permits free lateral movement of the arm, space being provided between the end of the wrist and the end of the bore in the bushing to compensate for the oscillating motion. of th carrier g during the operation.

- The above-described arrangement of the connection between the crankf and carrier 9 is clearly shown in Figs. 3, 4, 5, and 7. The bushing 1 consists of two parts or sections, so that the wear of the bushing may be taken up by the bolt m, which passes through one arm of the carrier g, said arm and the socket 70 being split, as shown at n, so that the socket may be compressed by the bolt m.

0 represents the breasting-knife, whichis attached to the carrier g, and is preferably curved in cross-section at its cutting portion, as shown in Fig. 8, the radius of the curve being the center of pivot h. The knife is directly secured to a head 19 on the carrier g, said head having a dovetail groove formed in its outer face to receive the dovetail edges of the knife. The knife is secured to the head by bolts 19 b and is vertically slotted to. receivesaid bolts and permit vertical adjustment. The rear side of the knife-holding head is provided with ashank q, arranged to enter a socket in the carrier g and fit closely therein. Said shank is provided with a feather or projection 1", which enters a slot 8 in the carrier g, the object being to prevent the shank g from turning in the socket and at the same time permit longitudinal adjustment of the shank in the socket, the latter being split and provided with two ears ta, through which passes a bolt 1), so that when the shank is in the proper position in said arm it maybe tightly gripped and held firmly in place.

In Figs. 1 and 2 I have shown the means for supporting the boot or shoe and pressing the heel thereon against the knife. Said means consist of a jack 2, pivoted at its lower end to a rod 3, to the lower end of which is pivoted a link 4, which link is connected with alever 5, fulcrumed on an arm 6, secured to the support a. Said leveris connected atits other end to a link 7, which connects with a treadlelever 8, the outer end of which is secured to cars 9, formed 011 the base of the support a. The abovenamed devices are guided by brackets 10 11, attached to the standard a, said brackets having guides in which the rod 3 is fitted to slide.

The jack 2 is adapted to swing out, as shown in dotted lines in Fig. 2, so that the operator may more conveniently apply or remove the shoe from the last a, the shank b of which is pivoted at c, and has a limited movement thereon, so that the last may be tipped forward or back, as the case may be, to give the breast of the heel an angular cut; or, in other words, to incline the breast back- Wardly from the top lift, as is sometimes the practice.

d represents a guide to steady the jack 2 and also to serve as a stop to guide the operator in the breasting operation, the jack 2 bringing up against the inner end of said guides when the heel 8 is in position for brcasting. A spiral spring 6, surrounding the rod 3 and resting on the arm 10 and bearing against a collar f on said rod, supports the jack and lifting devices in the position shown in Figs. 1 and 2, and also provides against a jar or shock when the jack is lowered.

9 represents an adjustable gage or stop, by which the cutting of the sole is prevented. Said stop is secured adjustably to a soeketed boss h, formed on thehead p, and is arranged to come in contact with the sole of the shoe at the moment that the knife has finished breasting the heel. It will be seen by reference to Figs. 3, 4, and 5 that the rapid rotation of shaft (Z imparts a lateral vibrating or reciprocating movement to the arm g through the crank or wrist f. The knife is thus oscillated or reciprocated lengthwise while itis breasting the heel, so that it cuts with a drawing motion, which greatly increases the ease of the operation and reduces the power expended by the operator to the minimum.

I do not limit myself to the details of mechanism here shown, as the same may be vari ously modified and any other suitable means adopted for oscillating or reciprocating the knife longitudinally without departing from the nature or spirit of the invention. If desired, the knife may be given a rectilinear instead of an oscillating reciprocating movement, in which case the cutting-edge would be straight insteadof curved.

I claim- 1. In a heel-breasting machine, the combination of a breasting-knife, a jack orlast-support, means for moving said jack toward and from the knife, a holder or carrier supporting the breasting-knife and movable crosswise of the bottom of a boot or shoe supported by said jack, means for supporting the knifecarrier and knife against the pressure of the heel upon its edge caused by the movement of the jack toward the knife, and mechanism for giving the carrier and knife a lengthwise movement across the bottom of the boot or shoe, whereby the knife is given a drawing action while cutting the heel pressed against it by the movement of the jack, as set forth.

2. In a heel-breasting machine, the combination of the pivoted carrier, the breastingknife attached thereto and having a curved cutting-edge, means for oscillating the carrier and thereby reciprocating the knife in a curved path, a jack or work-support, and means for moving it toward the knife in adirection substantially at right angles with the path of movement of the knife, as set forth.

3. In a heel-breasting machine, the combination of the bell-crank lever or knife-carrier pivoted to a fixed support, the breasting-knife secured to one arm of said carrier, the driving-shaft having an eccentric wrist-pin engaged with the other arm of said carrier, whereby the latter is oscillated and the breasting-knife reciprocated, and a jack or worksupport and means for moving the same toward the breasting-knife, as set forth.

at. The combination of the bell-crank lever or knife-carrier pivoted to a fixed support, means for oscillating said carrier, the head 19, having a shank (1 adjustable in a socket in the carrier, means for securing the shank q at any point to which it may be adjusted, a breasting-knife secured to the head 1), and a jack movable toward and from said knife, as set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 4th day of November, A. D. 1889.

WILLIAM GORDON.

Witnesses:

C. F. BROWN, A. I). HARRISON.

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