US324085A - Signobs of one-thibd to chaeles h - Google Patents

Description

NITED STATES ATENT Fries.

CHARLES WV. COLLYER AND WILLIAM C. COLLYER, OF LYNN, MASS, AS- SIGNORS OF ONE-THIRD TO CHARLES H. YVARD, OF SAME PLACE.

SEAM-RUBBING MACHINE.

SPECIFICATION forming part of Letters Patent No. 324,085, dated August 11, 1885.

Application filed May 4, 1885.

To all whom it may concern.-

Be it known that we, CHARLES W. OoLLYER and WILLIAM G. OoLLYER, of Lynn, county of Essex, State of Massachusetts, have in-- vented an Improvement in Seam-Rubbing Machines, ofv which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object to produce a mechanism for automatically rolling down and finishing the seams in leather-work.

Our improved machine contains a horn or support for the work, and cooperating with 1 it is a tool-carrying crosshead having a roller, which acts both to roll down and to feed the leather along over the horn or work-support. The tool-carrying cross-head is reciprocated horizontally in the direction of the feed of the leather over the horn, and the said cross-head has its bearing in a guide-box free to rise and fall to a limited extent under the action of a spring, which is shown as made adjustable, to thus vary the pressure of the tool or its roller upon the'leather. The tool is provided with one or more clamps or guides, which aid in keeping the leather in place on the horn or work-support.

Our invention consists, essentially, in a seam rolling and finishing machine containing a horn or work-support on which the leather having the seam to be rolled down or out is made to rest,and areciprocating head having a wheel,'which bears upon the edges of the ma- 3 5 terial to be rolled, the said wheel rolling'over the material with which it is in contact while the head is moved in one direction, but being locked or restrained from rotation while the head is being moved in the opposite direction, 40 thus enabling the said Wheel during the stroke of the head in one direction, and only in one direction, to feed the stock over the horn or work-support,the dragging of the face side of the seam horizontally along the horn in the 5 direction of its length while the roller is locked pressing or ironing the seam, substantiall y as will be described.

Figure 1 in front elevation represents a seam rubbing or finishing machine embodying our improvements; Fig. 2, a partial section of Fig. 1 in the dotted line me, the tool being omitted;

(No model.)

Fig. 3, a partial section of the same figure in the line 00 x, the tool being omitted. Fig. 4 is an enlarged right-hand side elevation of the tool alone; Fig. 5, a partial left-hand side elevation of the tool and the upper part of the horn or work-support; Fig. 6, a section in the line 00 wfiFig. 4; and Fig. 7 shows details of the adjustable crank-pin and plate.

The frame-work herein shown consists, essentially, of arched portions A A, rising from a base-plate, A, the central portion of the arch portion being cut outto provide a space for the vertically-movable box or guide A retained in the frame-work between the plates A and A A, connected, respectively, by screws 2 and 3, to the frame-work, the said box or guide A being normally held down toward or against the plate A by the spring B, resting on the follower B, and made adjustable by the screw B, resting against the washer B lying on the top of the said spring. The box or guide A receives the tool-carrying cross-head 0, having a slot, 4, in which is placed a slide-block, 5, pivoted upon a crankpin, 6, connected with a bar, 7, placed in guides in the face of the disk at, attached to the rotating shaft 0, the bar carrying the crankpin 6 being made adjustable by the screws 8, (see Fig. 7,) adjustment of the crankpin 6 toward and from the center of the plate a and shaft 0 altering the length of the stroke of the tool-carrying cross-head and its tool, the shank of which is secured in the socket 9 by a screw, 10.

The horn or work-support D (shown in end view, Fig. 1, and side view, Fig. 5) is convexed or curved at its top to better support the leather, the seam in which, as for the heelquarters of the shoe, is curved. The horn is pivoted at 12 in a slot in the top part, D, of the post D D the said top part being made vertically adjustable with relation to the foot D by the screw D", held in the said base or foot, so as to rotate but not reciprocate in the said foot, the threaded part of the said screw engaging screw-threads cut into the top part,

. the post.

a hole in the shank of the horn or work-support. If desired, this horn or work-support may be made integral with the top part, D', of The vertical adjustment of the horn or work-support enables it to be placed at the proper height, having regard to the thickness of the stock.

The tool consists, essentially, of a head, I), and a wheel or roller, I), placed therein, and keyed or otherwise attached to a shaft, 5 having its bearings in the said head b. The shaft 1) has a flange, b, which is provided with ratchetteeth 14, (see Figs. 1, 5, and 6,) which are engaged by a spring-held detent, 15, pivoted on the head 1). The shaft 1) near its opposite end, outside the head I), has keyed or otherwise suitably fastened to it a ratchet, c, and placed loosely on the said shaft at the side of the said ratchet is a pawl-carrier, held in place by the washer c and screw 0, the said pawl-carrier having pivoted on it a pawl, c, acted upon by a spring, 0 the said pawl engaging the ratchet c, and as the pawl-carrier is moved rotating'the shaft and the wheel or roller 6. The head I) has on opposite sides laterallyprojecting cars 16 16, which form bearings forshaftsf, on which arehung clamps or holders f, cooperating with the horn or work-support D, to keep the work in position to be operated upon by the wheel or roller 1); and said clamps or holders are pressed toward each other, and hence against the work, by springs 18, coiled about the shafts f, and having free ends acting against the said clamps or holders. Setscrews 17 are inserted in one of the cars 16 on each side, to impinge against the shafts f to hold them in place. The pawlcarrier has connected with it a link, r1, having its fulcrum d. on a bracket, (1", herein shown as a bent red, one end of which enters a guide, (1, forming part of the head I), the said bracket being surrounded by a spiral spring, (1. The inner end of the spiral spring d abuts against a pin, (1, and the outer end of the said spring abuts against a stationary arm, d the lower forked end of which embraces the said rod between the end of the spring and the pin 0. \Vith the shaft I), )rovided with a ratchettoothed flange, b", engaged by the detent, and the ratchet engaged by the pawl of the pawlcarrier, (the pawl-carrier being connected with a suitable operating device, such, for instance, as the pivoted link,) the pawl of the pawl-carrier in engagement with the teeth of the ratchet-wheel 0 will cause the rotation of the shaft 1) and of the wheel or roller 1) while the head of the tool is being moved backward, or in the direction of the arrow in Fig. 4, the wheel or roller then running over the stock resting between it and the horn or support D, and rolling down the edges of the leather or other material near the line of stitches constituting the seam; but as the head bis moved in the opposite or forward direction by the crank pin in the tool carrying crosshead, the pawla" will slip back over the teeth of the ratchet c, and at the same time the detent in engagement with the ratchet-teeth 14: of the flange I)" of the shaft If will prevent the rotation of the wheel or roller, and hold the latter in fixed position with relation to the head I), so that the wheel or roller 1) in engagement with the stock or material rolled down at the previous backward stroke of the head I) will carry the stock or material forward with it, thus feeding the stock or material over the horn or work-support. The roller 1) rolls freely over the material while the carriage moves toward the operator, the pawl c in engagement with the ratchet c on the axle of the roller causing it to move positively. The teeth 14 of the ratchet-toothed head (see Fig. 5) are in number one less than those of the ratchet, so that as the carriage starts back the wheel rotates in the reverse direction for the extent of one tooth, and then the roller becomes fixed with relation to the carriage and drags the material over the smooth face of the horn or support, the latter rubbing against what is to be the face side of the seam, ironing the same. The upper edge of the horn or support 1) will be provided with a keel or edge to partially enter between the pieces of leather next the stitches when a piping or welt is not used, such keel being shown in Fig. 1; but if a piping or welt is used between the right or face sides of the stock, then the horn or work-support will be provided with a groove instead of with a keel. The periphery of the wheel b will in practice preferably be provided with an annular groove milled at its bottom.

\Ve claim-- 1. In a machine for rolling down and finishing seams in leather-work, a horn or work support combined with a reciprocating head having a shaft and wheel or roller, and means, substantially as described, to rotate the roller to roll down the seam whilethe head and roller move in one direction, and to feed the mate rial over the horn while the head and wheel' are moved in the opposite direction, substantially as described.

2. In a machine for rolling down and finishing seams in leather-work, avertically-adjustable horn or worksupport, combined with a reciprocating head having a shalt and wheel or roller, and means, substantially as described, to rotate the said roller to roll down the seam while the head and roller move in one direction, and to feed the material over the horn while the head and wheel are moved in the opposite direction, substantially as described.

3. In a machine for rolling down and finishing seams, a horn or work-support, atool provided with a wheel or roller, and means, substantially as described, to rotate the said roller, and a cross head or slide to carry the said tool, combined with a rotating shaft and a crank and crank-pin to reciprocate the said cross head or slide, substantially as described.

4. In a machine for rolling down and finishing seams, a horn or support forthe work, the shaft 0, its attached crank and pin, and the IIC guide A and cross-head supported therein, and the tool composed of a head and wheel or roller, combined with a spring acting upon the guide A", to regulate the pressure of the tool upon the material, substantially as described.

5. The head and the wheel or roller and its shaft b provided with ratchet-teeth 14, combined with the detent to operate it, substantially as described.

6. The head, the shaft b and the wheel or roller thereon, and the ratchet-wheel, combined 7 with the pawl and pawl-carrier to rotate the leather-work, a reciprocating head, a shaft therein provided with ratchet-teeth, and a roller fast on the said shaft, combined with a ratchet-wheel, also fast thereon, and with a pawl-carrier and pawl to engage and rotate 30 the said ratchet and shaft and wheel intermittingly, the said pawl and ratchet effecting the rotation of the wheel while the head is moved in one direction, the detent preventing the rotation of the wheel when the head is moved in 3 5 the opposite direction, the pawl of the pawlcarrier at such time clicking or slipping back over the ratchet-teeth, substantially as described.

10. The head, and the pivoted clamps or 0 holders f, and the springs, combined with the horn or work-support, substantially as described.

In testimony whereof we have signed our names to this specification in the presence of 45 two subscribing witnesses.

CHARLES W. COLLYER. WILLIAM G. COLLYER.

Witnesses:

Gno. W. GREGORY, W. H. SIGSTON.

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