US40667A - Edwaed s - Google Patents

Description

EDWARD S. WRIGHT, OF NEW YORK, N. Y., AND EDWIN ALLEN, OF NEWARK, NEW JERSEY, ASSIGNORS 'IO EDWARD S. WRIGHT AND L. M. HILLS.

GUN-STOCK MACHINE.

Specification forming part of Letters Patent No. db?, dated November 17, 1863.

To all whom it may concern:

Be it known that We, EDWARD S. WRIGHT, ot' the city, county, and State of New York, and EDWIN ALLEN, of Newark, in the county ot Essex and State of New Jersey, have invented a new and useful Improvement in Gun-Stock Machines, and ive do hereby declare the following to be a full, clear, and exact description ofthe construction and operation of the saine, when taken in connection with the accompanying drawings,and the letters of reference marked thereon, and which said drawings constitute part of this specification, and represent, in-

Figure l, a plan or top view Fig. 2, arear View. Figs. 3 and 4 are sections of stock, t0 show the operation of the machine.

Similar letters of reference indicate like parts.

Our invention is designed to perform that part of the work upon a gun-stock commonly termed squaring down or letting in the breeclrtang. This work (or a part of it) has been heretofore performed by hand.

To enable others skilled in the art tomake and use our machine, we will proceed to describe its construction and operation.

A is the bed-plate, supported upon legs B B. (l is a turn-table, constructed so as to turn freely upon a pivot, a. D is a gun-stock, firmly fixed upon the table C by means of clamps c c. cl is a cutter, fixed in the end of a spindle, E, and the said spindle made to revolve by the application ofa band to a pulley, F. The said spindle is supported near the pulley in a bearing, G, which is arranged so as to admit of the changing the position of the other or cutter end of the spindle, as occasion may require. The cutter end ofthe spindle is supported by and has its bearingin a movable block, H. c is a guide-pin, fixed to the block H, so as always to maintain the same relative position to the cutter. I is a former or guide, fixed to the turn-table. It is constructed with a slot in its face, (see Fig. 2,) corresponding to the form of the cut to be made for the tang, and in this slot the guidepin rests. L is a lever, hung one end at f.

To its center the block H is pivoted, and its other end serves as a handle for the operator to swing or move the cutter to perform the operation required. v

In Figs. 3 and 4 a longitudinal and transverse section of the stock are shown, giving the forni of the cut required for the tang, as also the form of the cutter required to make the said cut, by'refereiice to Fig. 4,that the cut down decreases in width from top to bottom, and,by reference to Fig. 3, that the depth of the same cut also decreases, while the two sides of the cut longitudinally with the stock are parallel to each other, and, by reference to Figs. l and 3, it will be seen that the cutter must necessarily be at right angles with the bottom of the cut, and, consequently, diagonally across the side ofthe cut, as seen in red, Fig. 3. This necessitates a conical cutter diminishing in diameter toward the end, and this diminish must be in proportion to the angle at which the cutter is placed-that is, the inner end (or smaller end) ofthe cutter n'iust be as much less in diameter than the outer cutting-point as the width ofthe cut diminishes on the angle at which the cutter is placed.

To operate our machine, place and clamp a stock upon the table O, as denoted in Fig. l. The cutter revolving rapidly is moved by the lever L and guide/d by the pin c in the former slot-cuts for the tang upon the top of the stock n. (See Fig. 3.) This done, turn the table to the position denoted in red, Fig. l. While being turned the rounded corner is formed, and when fully turned the squaring down or the cut m will be made by moving the guided cutter in similar manner to the first cut described, and the work of the niachineis performed. Return thetable, unclamp and take out the stock, vand introduce a second, for the same' operation, and so on, easily performing that part of the labor upon this portion of the stock heretofore performed with some difficulty by hand, and in a far superior manner.

Having thus fully set forth and described our invention, what we claim therein as new and useful, and desire to secure by Letters l out to be made, substantially in the manner Patent, is- Y described, land for the purpose specified.

l. A turn-table, G, combined with a cutter EDWARD S. WRIGHT. and former, in the manner and for the pur- EDWIN ALLEN. pose substantially :is herein set forth. Titnesses l 2. A oonioally-formed cutter when the axis JOHN E. EARLE,`

of the said cutter is set at angie with the L. M. HILLS.

Images