US1080376A - Heel-breasting machine. - Google Patents

Description

R. G. SIMMONS.

HEEL BRBASTING MACHINE.

APPLIUATION FILED Nov. 19, 1910.

1,080,376. Patented Dec. 2, 1913.

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RALPH C. SIMMONS, OF BEVERLY, MASSACHUSETTS, ASSIGNOR T0 UNITED SHOE MACHINERY COMPANY, 0F PATERSON, NEW JERSEY, .A CORPORATION OlE NEW JERSEY.

HEEL-BREASTING MACHINE.

Specification of Letters Patent.

Patented Dec. 2,1913.

To all whom t may concern:

Be it known that l, RALPH C. SIMMONS, a citizen of the United States, residing` at Beverly, in the county of Essex and State of Massachusetts, have invented certain lmprovements in Heel-Breasting Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to shoe machinery and particularly to heel breasting machines.

After the attachment of the heel to the shoe by the heel nailing machine, it is customary to eut oft' squarely and evenly the forward face of the heel, this operation being known as heel brcasting. This operation is, however, sometimes performed upon the heel before it is attached to the shoe. The heel breasting knife and the shoe are usually relatively positioned with the knife edge at right angles to the longitudinal median line o-f the heel, that is, with its edge extending squarely across the heel. It is often. desirable, however, to breast heel rights and lifts by relatively positioning the knife edge and the longitudinal median line of the heel at oblique angles to each other. In this case the knife and longitudinal median line are usually so inclined that the side of the heel which becomes the inside when worn is breasted longer and the opposite side shorter upon each shoe. To accomplish this it has been the custom to move the shoe relatively to the knife while the knife is mounted to reciprocate in a fixed plane. By this invention, however, the shoe is held in a fixed position relatively to the machine frame and the knife is mounted for reciprocation and also for angular positioning movement about an axis lying in the direction of its reciprocativc movement. This oscillatory positioning movement enables the knife to be placed at the desired angles to a fixed line extending transversely of the machine fraine and hence also to the longitudinal median lines of the shoe heels for breasting heel rights and let'ts. Adjustable stops are provided so that the magnitude of the angles may be varied for different pairs and made equal but opposite for the shoes of a pair.

Another feature of my invention involves i the provision of resilient means for retaining the knife at either limit of its oscillatory positioning movement.

Upon the knife carrier a shaft is mounted for partial rotation or oscillation about a vertical axis and to the lower end of the shaft the knife clamping means is attached. Upon the shaft above its support is secured a collar having an arm provided with a downwardly projecting portion adapted to engage rigid but adjustable abutments carried by thc shaft support. Upon the upper end of the shaft is an elongated sleeve having two .longitudinal ribs which form between them a way adapted to receive the rounded end of an arm extending from a rock-shaft mounted on the frame and arranged to be rotated by a knee lever located conveniently for the operator. Movement of the rock-shaft swings the arm and causes its cud t0 press against one or the other of the ribs on the sleeve, which pressure rocks or rotates the vertical shaft until stopped by one or the other of the rigid adjustable abutmcnts. The resilient means for holding the knife against'y either stop comprises a Ushaped spring having one end wrapped about a pin on the machine frame and the other wrapped about a pin on a short arm extending from a rock-shaft. Rocking of the shaft carries the pin on the short arm to one side or the other of a line joining the pin on the frame and tl i. axis of the rockshaft and the pressure of the spring, which tends to separate the pins, holds the rock shaft and hence the knife carrying shaft at one or the other of its limits of oscillation.

Referring now to the drawings-Figure l is a side elevation of a heel brcasting machine provided with my improvement; Fig. 2 is a perspective view showing in detail the parts of the machine embodying my invention.

Referring to Fig. l, Q :is the main frame of the machine. rl`he knife carrier lis mounted for vertical rcciprocation in the upper portion of the frame by flanges which engage suitable ways in the frame Q, Fig. 2. The knife carrier is counter-balanced by a, spring 8 and is reciprocated by connections (not shown) with an actuator l() which is reciprocatml adjacent to the carrier by a connecting rod 12 attached to a crank llt on the power driven shaft of the machine which is actuated through a onerevolntion clutch .mechanism of the usual Horton type which is tripped by pressure on the treadle 16. The shoe is supported with its heel beneath a presser plate 18 by a jack of a usual type. The pressure plate 18 is actuated by the same treadle which trips the clutch, the clutch being actuated only when the treadle approaches the lower limit of its movement. Connection from the treadle to the presser plate is established through the usual slide 20 carrying the plate 18, the lever 22 pivoted at 24, and the rod 26 connected to the treadle, and, through the spring 28, to the lever 22 so that pressure on the treadle first acts to depress the plate 18 resiliently upon the heel and then to trip the clutch whereupon the crank 14 draws down the actuator 10 and the knife carrier 4 to force the knife 8O through the heel until the breasting stop or bunter 32 comes in contact with the shank of the shoe. When this occurs the connection between the actuator 10 and the knife carrier 4 is broken and further travel of the knife stopped.

Upon the upper end of the knife carrier 4 is an extension 86 in which is rotatably mounted in a vertical position a shaft 38. Upon the shaft below its support 36 is rigidly mounted the upper portions of a knife clamp 40. rlhe knife clamp has forwardly projecting arms 42 which embrace the knife. ln front of the knife and behind the ends of the arms is a clamping plate 44 provided with clamping screws 46. When the screws are turned in against the knife it is forced back against the body of the clamp and the ends of the plate 44 are brought forward against the arms 42; in this way the knife is firmly clamped in place. Vertical adjustment of the knife is provided for by screws 48. To limit the rotative movement @fthe shaft 38 and of the knife, a collar 50 is fixed to the shaft above the support 36 and is provided with an arm havling a. depending portion 52 which lies in position to engage one or the other of two screws 54 which are threaded through lugs 56 on the support or extension 36 on the knife slide or carrier. Above the collar 50 is a sleeve 60 which is provided with longitudinally extending ribs 62 forming a way or groove between them. ln the groove Vlies the rounded end of an arm 64, the other end of which is iiXed to a rock-shaft 66. The shaft 66 is mounted in suitable bearings 68 on the machine frame and at its lower end is provided with an arm 70 having a knee or leg engaging portion 72. Mounted on the shaft 66 above the middle bearing 68 is a short arm 74 carrying a pin 76 located opposite a pin 78 on the frame. A U-shaped spring 86 has its ends wrapped about the pins and tends to separate them. 'W hen the pin 76 is in line with the pin78 and the shaft 66, the spring has no tendency to rotate the shaft, but when the said pin is displaced out of said line by rotation of the shaft 66 and swinging lof the arm 74, the spring tends to rotate the shaft in one direction or the other according to the side of the line upon. which its end, carrying the pin 7 6, is displaced.

The longitudinal median line 'of` the shoe heel, extending from front to back of the heel, is positioned relatively to a fixed line on the machine. perpendicular to a line extending transversely of the machine substantially parallel with the front edge of the presser plate 18. rl"he knife is then adjusted to be oscillated to positions in which it makes equal angles with the fixed line, on the machine.

The parts of the machine are shown, Fig. 2, in position for breasting left heels, the

For instance it is placed-v knife being in position to make a cut along theline a, so as to make the inside corner of the heel extend farther forward toward the ball than the outside cornenthus providing a more extended support for the` arch of the foot. lWhen a right shoe is to be breasted the operator swings the arm 70 to the left with his knee to carry the arms 74 and 64 in the same direction and move the pin 76 to the other side of the line joining the pin 78 and the axis of the shaft 66, so that the spring 8O will tend to continue the rotation of the shaft 66, and, through the arm 64 and grooved collar 60, to continue the oscillation of the knife carrying shaft 38 until the depending stop arm 52 contacts with the forward limiting screw 54. rlhe knife is then in position to cut along the line Z; for breasting a right heel. rlhe treadle is now depressed to bring the presser foot 18 down on the heel and the shoe heel properly adjusted relatively to the edge of the plate 18. rEhe Vtreadle is then further depressedto throw in the clutch, whereupon the knife descends and breasts the heel, stopping automatically when the stop 32 engages the shank. During the downward movement of the knife, its carrier and attached parts, the end of the lever 64 slides along the groove formed by the ribs 62 on the collar 60. This sliding connection enables the spring 80 to maintain the knife in its proper position at -an angle to the median line of the heel, and the stop arm 52 against its stop screw during the reciprocating movement of the knife. Y

Having described my invention, what l claim as new and desire to secure by Letters latent of the United States is 1. ln aheel breasting machine, a breasting knife mounted for reciprocation and for positioning'movement about its longitudinal axis and means tending to maintain the knife yieldingly in either of two positions of movement about said axis.

2. ln a heel breasting machine, the combination of means for supporting a shoe in i lio position to be operated upon, a breasting knife, means to reciprocate the knife longitudinally to do its work, means permitting adjustment of said knife about its longitudinal axis, and means tending to maintain the knife yieldingly in one or the other of two positions of adjustment about said axis.`

3. In a machine of the class described, an operating tool adapted for angular adjustment, means for limiting such adjustment in opposite directions, a rocker for effecting such adjustment, and the bent spring 80 attached by one end to the rocker and by its other end to a fixed point so related to the rocker that said. spring will be repositioned by and with said rocker to maintain the rocker yieldingly at either extreme of its movement alternatively.

4. In a heel breasting machine, the combination with a shoe support, of an adjustable breasting knife, means for reciprocating said knife in one plane and then upon adjustment in another' plane, said planes making oblique angles with a fixed horizontal line, and yielding means for normally maintaining` the knife alternatively in either of said planes at will.

5. In a heel breasting machine, a breasting knife, means to reciprocate said knife in a direction approximately perpendicular to the plane of the top lift, means for adjusting said knife into a plurality of positions such that the planes generated by the knife edge in its reciprocation are equally but oppositely inclined to a fixed vertical plane, manually operated means for shifting the knife from one posit-ion to the other, and means acting automatically to hold the knife in either position.

G. A. heel breasting machine, having in combination, a shoe support, a knife slide, power means for actuating the slide, a knife carrier pivotally mounted in the knife slide for movement about the longitudinal axis of the knife, means under the control of the operator for turning said knife carrier, a movable presser plate, and means for depressing the plate upon the Work prior to the actuation of the knife.

7. A heel breast-ing machine, having in combination, a shoe support, a movable presser plate adapted to engage the tread surface of the heel of a shoe, aknife slide, means for actuating the slide, a knife carrier pivotally mounted on the knife slide for movement about the longitudinal axis of the knife, and manual means for positioning and holding said knife carrier angularly to said presser plate in a plurality of predetermined positions.

8. A heel breasting machine, having in combination, a shoe support, a knife slide, a knife carrier pivotally mounted on the knife slide, means under the control of the operator for turning said knife carrier to a limited extent in either direction, and means for resiliently holding the knife in either limiting' position of rotation.

9. In a machine of the class described, a reciprocating knife slide having' a projecting portion, a knife carrier mounted rotatably in said portion, means for limiting rotative movement of the knife carrier, ribs on the knife carrier forming between them a slot or way, a rock-shaft mounted upon the machine frame and. provided with a knee lever, an arm on said rock-shaft arranged with its free end lying between said ribs, and a spring for holding said. knife carrier at either limit of its rotative movement.

10. In a machine of the class described, a reciprocating knife slide, a shaft journaled m said slide, a knife clamp mounted on said shaft, a stop arm fixed on the shaft and adapted to engage stops on the knife slide, a sleeve on said shaft having longitudinal ribs, a rock-shaft mounted on the machine frame, a knee lever and an arm on said rock-shaft, the end of said arm lying between the ribs on said sleeve.

11. In a heel breasting machine the combination of the knife slide (3, the knife earrying shaft 38 mounted therein, the grooved member G() on said shaft, the rock-shaft (3G, the arm (311 thereon engaging said grooved member, the pin TS on the machine frame, the arm 7-1 on the rock-shaft carrying the pin 76 normally out of line with the pin 78 and the rock-shaft, the spring 80 for holding said arm 74 in normal posit-ion, knife shaft limiting means 52, `5-l, and an operating arm on the rock-shaft.

In testimony whereof I have signed my name to this specification in the presence of tivo subscribing witnesses.

RALPH C. SIMMONS.

Vitnesses CHns'rnn F. Rooms, LAURA M. Goonnmsn.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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