.2Sheets-Sheet 1.

(No Model.)

B. ERIG'KSON. SOLE ROUNDING MACHINE.

Patented Mar. 1,1898.

\X/ITNESEESI (No-Model.) 2 ShetsSheet 2.

E. ERIG KSON. SOLE ROUNDING MACHINE.

N0. 599,693. Patented Mar. 1, 1898.

WITNEEEES. INVQNTUR. 3/- J A/W- dMJaW UNITED STATES PATENT OFFIC Y EDWARD ERIOKSON, OF BOSTON, MASSAOHUSETTfl ASSlGNOR TO THE FLAGG MANUFACTURING COMPANY, OF SAME PLACE.

ZSOLE -ROU NDING MACHINE.

SPECIFICATION formingpart of Letters Patent No. 599,693, dated March 1, 1898.

Application filed March 2 5, 18 97.

To all whom it may concern:

Be it known that I, EDWARD ERICKSON, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Sole-Rounding Machines, of which the following is a speci fication.

This invention relates to sole rounding or trimming machines of-that class known as the Julian, employing a rotary table, a fixed pattern or form, a knife-holder adapted to move back and forth on the table, a carrier on which said knife-holder is mounted, and

wan improved mechanism for starting and stopping the rotating table, while at the same time simplifying the same and reducing the number of parts therein. v

Reference is to be had to the accompanying drawings, forming apart of this specification, in which? Figure 1 represents a top plan 'view of the, principal working parts of a sole-rounding machine embodying my invention. Fig. 2 represents aperspeetive view-of parts of the starting and stopping mechanism. Fig. 3 represents a section on line 3 3 of Fig. 2. Fig. 4: represents a section on line 4 4 of Fig. '1.

The same reference characters indicate the same parts in all the figures.

Referring to the drawings, the letter a designates the rotating table, which is mounted to turn on a fixed column, at the top of which is the sole pattern or formupon which the untrimmed leather is placed to be cut. (The column and pattern are not shown in the drawings.) The knife-holder b is pivoted at b to man (1, actuated by a revolving crank, so op; erates the carrier 0 as to accelerate the speed of the knife when traversing the long sides of the sole-pattern and to retard the same when rounding the ends of said pattern. As

Serial No. 629,146. (No model.)

a meansfor holding the knife up to the carrier I'provide mechanism comprising a segmental gear-head b ,a pinion e,meshing therewith and fixed to a vertical arbor e, and a spiral spring f, secured at one end to the arbor e and at the other end to the carrier 0. The said arbor 6 has a lower bearing in the-carriere and an upper bearing in a plate g,which forms abridge over the spring. By this arrangement the knife-holder b is actuated in the direction of the arrow 00 in Fig.1, so as to hold the knife constantly up to the solepattern around which it is moving, the spring f yielding to allow a backward displacement. of the holder as the knife reaches the protruding portions of the pattern and immediately forcing the holder forward again as the knife reaches the recesses or depressions of said pattern. This construction dispenses with all weights and their cumbrous attachments as commonly employed in machines of this class and greatly simplifies the knifeactuating means. 1

The table a is provided on its under side with gear-teeth, which mesh with the teeth of a pinion h, (shown in dotted outline in Fig. 1,) the said pinion being fixed to a drivingshaft t'. A driving-pulleyj, which is loosely mounted on the shaft 2', has a clutch member adapted to engage a corresponding clutch member formed on a spider, which is fixed to the shaft 2', as described in Letters Patent No. 540,062, dated May 28, 1895. The clutch members are normally held out of engagement by means of a spring, which tends to separate the spider and the pulley. For moving the pulley into contact with the spider a movable collar is employed, which is loosely mounted on the shaft between the hub of the,

pulley and a fixed abutment or hearing m, in

which the shaft is journaled. A strut 7c is interposed between the said collar and abutment, its ends fitting in sockets in the said two members, and is mounted diagonally, so that when the collar is is turned in one direction the strut forces the collar against the hub of the pulley j and thereby moves the pulley, so as to ,engage the clutch members,

which are disengaged by turning the collar back in the other direction. Y

The collar k is connected by a yoke 70 with a gear-segment k loosely mounted on the shaft 2', and the teeth of said segment mesh with those of another gear-segment n, fixed to a sleeve 11., which is mounted to rock on a shaft 0. A collar 19, fixed to said shaft 0, is provided with means for engaging the sleeve 01, consisting of an arm Won the collar 19, and two lugs n on the sleeve 72, (only one of said lugs being shown,) so that the collar and sleeve may be turned together. The collar is further provided with an arm or handle 13. By depressing said handle the operator may engage the clutch members of the pulley and the spider on the shaft 2', and thus cause said shaft and the table a to rotate.

Automatically-acting means are provided for releasing the clutch members and arresting the shaft 1', the said means consisting of a brake-band q, surrounding the shaft, a link q, connecting one end of said band with an arm 13 on the collar 19, a standard 19 on said collar, a hooked arm 0', supported on said standard, a hook r on said arm, and an abutment at on the table a. The arm 1" is pivoted at p to the standard 19 and is normally held by a spring 8, connected with said arm and with a lug s 011 the collar 1) in position to be engaged by the abutment a When said abutment strikes against the hook r, it moves the collar 19 and thesleeve h in the direction indicated by the arrow w in Fig. 3, thereby moving the gear-segments and the collar is, so as to permit the disengagement of the clutch members. At the same time the link q forces the brake-band q into, engagement with the driving-shaft iand arrests the rotation of the same, the action of the brake being cushioned,if desired,by a spring or springs applied after the manner described in the patent above referred to. Upon depressing the arm 1) to engage the clutch mechanism again and start the table a in rotation it is necessary to disengage the hooked arm r from the abutment a and this is accomplished by means of a handle or lever i, pivoted at 25' to the arm 19' and provided with a beveled face 2, engaging a complementary beveled face 3, formed on a rear extension of the arm r. Be-

fore depressing the arm 29 the outer end of the handle 25 is depressed, thereby raising its inner end, as indicated by the arrow-z, Fig. 3, and displacing the rear end of the arm 1' in the direction of the arrow ,2" by the reaction of the beveled faces. The hook 7' is thus moved so as to release the abutment (i and the arm .1) is then depressed to engage the clutch mechanism and start the table a in rotation. The clutch members remain in engagement until the table has completed a rotation, when the abutment again strikes against the hook and releases the clutch. The table may of course be stopped by the operator at any desired point by raising the arm 1). The abutment a is bolted in a slot or,

The abutment a and the hooked arm 1' may be said to constitute complementary stop members.

I claim 1. In a sole-rounding machine, the combination with a rotary table carrying a knifeholder and provided with gear-teeth, of a shaft, a pinion on said shaft meshing with said gear-teeth, a clutch-pulley loosely mounted on said shaft, members on said shaft adapted by their partial rotation to move said pulley longitudinally into engagement with the shaft, and mechanism for automatically turning said members in a clutch-releasin g direction, consisting of a sleeve mounted on an auxiliary shaft and having gear-teeth which mesh with corresponding gear-teeth on one of the before-mentioned members, a collar mounted on said auxiliary shaft and adapted to turn said sleeve, a stop member on said collar, and a complementary stop member on the rotary table adapted to engage the first-mentioned stop member and thereby rotate the said collar and sleeve.

2. In a sole-rounding machine, the combination with a rotary table carrying a knifeholder and provided with gear-teeth, of a shaft, a pinion on said shaft meshing with said gear-teeth, a clutch-pulley loosely mounted on said shaft and adapted to be moved longitudinally into or out of engagement with a complementary clutch member fixed to the shaft, a clutch-operating mechanism including a collar mounted on an auxiliary shaft and having an arm or handle and connecting devices between said collar and the clutchpulley whereby opposite movements of the collar are caused to connect and disconnect the clutch-pulley and the clutch member on the shaft, a shaft-arresting mechanism connected with the collar and operated thereby, a pivoted arm carried by said collar and having a stop member, a stop member 011 the rotary table adapted to engage the arm and thereby turn the collar in its clutch-disconnecting direction, and means for disengaging said stop members, consisting of a lever pivoted to the before-mentioned arm or handle and having a beveled face adapted to engage a corresponding beveled face on the pivoted arm, whereby a movement of the lever on its pivot causes the pivoted arm to swing.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 19th day of March, A. D. 1897.

EDiVARD ERIOKSON.

IVitnesses:

O. F. BROWN, G. H. P. FLAGG.