US12006A - Miter-box - Google Patents

Description

UNITED STATES PATENT OFFICE.

WILLIAM TINSLEY, OF GLENS FALLS, NEVV'YORK.

MITER-BOX.

Specification of Letters ,Patent No. 12,006, dated November 28, 1854.

To all whom t may concern:

Be it known that I, WILLIAM TINSLEY, of Glens Falls, in the county of )Varren and State of New York, have invented a new Improved Instrumentfor Mitering Moldings Around Figures of All Angles, whether they be Square, Polygonal, Pyramidal, or Polygonally Pyramidally; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and tothe letters and figures of reference marked thereon, the annexed drawings'making a part of this specification, in which- Figure l, is a hllow cylinder, grooved on the inside and turning on a pivot (P). Fig. 2, is a guide plate, pierced for a saw and sliding in the groove of Fig. 1. Fig. 3, a, b, are two views of a metallic heel guide, standing and turning upon a pivot Fig. 4, is a sliding chuck or fulcrum, having a socket in which Fig. 3, turns. Fig. 5, c, d, e, f, are four views of av metallic bearing or fulcrum upon which Fig. l, turns. A is a socket; B, B, two ears or gudgeons; C, a ratchet; D, an endless screw; E, a screw and nut. Fig. 6, one side of a box, within which the gudgeons of Fig. 5 turn. Fig. 7 is a ground plan of the miter-boX, g, g, two screws placed between the upper and lower beds. Fig. 8, an end elevation of the miter box, the lumber bed perpendicular to the saw guide. Fig. 9, an end elevation, the lumber bed elevated to an acute angle with the saw guide. Fig. 10, a perspective of the whole, as seen when complete.

The design or invention consists of an open cylinder (Fig. 1,) standing in the center and at the farther side of the box, a little behind the line of the back. Said cylinder is grooved to carry a guide plate (Fig.

2,) and turns horizontally upon a Ipivot in the socket of a fulcrum (Fig. 5.) Said fulcrum is a block of metal pierced vertically to receive Fig. l. Two ears or gudgeons project on either end, which turn vertically in a bog (Fig. 6). The under side of said fulcrum is furnished with a ratchet C) which is gathered by an endless screw (D). When the screw is turned the fulcrum with the cylinder and guide is inclined or reclined from the vertical, to accommodate the angles of pyramids. To assist the ratchet a screw and nut (E) is added. There is another device to` incline the cylinder and guide, which is, by making the lumber bed in two pieces, and hinging them atthe back, the upper bed being adjustable while the fulcrum (Fig. 5) is fixed to the lower bed. The lumber bed is supported by a screw-head (Fig. 9,) or by any equivalent. Three heelguides are at the front side of the lumber bed. The middle one is stationary. The other two turn and are adjustable in blocks which run in` slots s, s, (Fig. 7,) being held by set screws. The back of the box is 1n two pieces having an opening to accommodate the cylinder.

My claim for which I wish to obtain Letters Patent, is-

The hollow, grooved central cylinder, adapted to carry saw guides, said cylinder turning upon a pivot in a hanging'adjustable fulcrum (as set forth) combined with the lumber-box, whose back and bed can be adjusted to different angles; the whole being combined with the heel guides (Fig. 3).

WILLIAM TINSLEY.

Witnesses:

Oris BALDWIN, CHARLES A. Scorrano.

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