US13127A - ackerman - Google Patents

Description

UNITED STATES PATENT oEEroE.

J. S. HALSTED AND J. ACKERMAN, OF NEV YORK, N. Y.

CARPENTERS MITER .AND BEVEL SQUARE.

Specification of Letters Patent No. 13,127, dated June 26, 1855.

To all whom it may concern:

Be it known t-hat we, J. S. HALSTED and C. J. ACKERMAN, of the city, county, and State of New York, have invented a new and useful Implement or Tool for Carpenters and Jointers, said implement to be used for forming the joints of window and door casings and work of a similar nature; and.

we do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which- Y I Figure 1, is a view of one of the joints of a window or door casing. Figs. 2 and 3 are views of the ends of the top or head piece and side piece, with the implement or tool applied to them showing its use. Fig. 4, is a transverse section either of the top or side piece with the implement or tool applied to it.

Similar letters of reference indicate corresponding parts in the several igures.

This invention relates to a new and usei'ul implement or tool for forming the oints of window and door` casings and work of a similar nature which now require the use of several tools, such as the'square, bevel, trying square, etc.

The nature of the invention consists in the peculiar construct-ion of the implement as will be presently shown and described, whereby the joints may be laid out or 4 marked in an accurate and expeditious manner.

A, Figs. 2, 3 and 4 represents the handle of the implement, and B, represents the blade. The handle may be made of 'metal having for convenience a slot (a) made in it for the fingers to pass through. The blade may be made of steel similar to those of the ordinary trying squares, and the blade is attached to the handle at right angles with it in the same manner as a trying square. The inner edge of the handle A, is provided with a ledge or anch (b) which projects outward beyond each side of the handle as shown in Fig. 4, and both ends of the handle is cut or beveled at an angle of 45o as shown in Figs, 2 and 3. The lower end of the upper bevel is in line with the lower edge of the blade B.

In the outer edge of the handle A, there is a slot in which a steel blade C, is fitted. The upper end of this blade is attached to the upper part of the handle A, by a screw (c) so that the blade may be moved in and out from the handle and set in line with the bevel at the upper end of the handle, or, at an angle of 45 as shown in Fig. 3.

The implement or tool thus constructed is used in the following manner. D, Figs. 1 and 2, represents one of the side pieces or Stiles of a window or door frame, and E, Figs. 1 and 3 represents the head or top piece of the frame. These pieces are made more or less ornamental in all cases, the inner edges of the pieces having beads or moldings formed on them, as represented by (d) and in expensive houses carved work is used. The pieces are also formed with recesses or grooves on their face sides arranged in various ways. The joints of the frames are never formed by a simple miter as the least shrinkage of the frame would show very plainly opening the joints and leaving an unsightly space. A zig zag joint is formed as indicated in red Fig. 1.

In order to lay out or mark the oint the ends of the pieces are first squared. The side pieces or stiles D, are marked or laid out by getting the point (e) on the molding (el) by actual measurement, the lanch or ledge (b) on the inner edge of the handle A is then fitted in the groove or kerf formed by the bead or molding (d),

and the handle is moved till t-he point (e) touches the upper edge of the handle see Fig. 2. The two lines (f) (g) are then drawn, (f) being a miter or an angular line of 45, and the line (g) a horizontal one. The vertical line (It) is obtained without marking as it is on the shoulder of a recess in the face of the stile. Thus by a single application of the implement the side pieces or stiles are marked.

The head pieces E, are marked or laid out as Shown in Fig. 8, the point (e) being obtained the inner edge of the handle is placed against the shoulder (2') of the recess, and the blade C, is adjusted in line with the bevel at the upper end of the handle A, and the implement is moved till the point (e) touches the upper edge oi the blade C, the miter line (j) across the head or molding, and a point (la), on the shoulder (i), is thereby obtained, and by reversing the implement the line (Z), obtained at right angles with the shoulder The ends when cut according to the lines above fianch projecting on each side of the inner edge of the handle A, the upper and lovver ends of said handle being cut or beveled at an angle of 45o, the handle being provided with a blade B, Which is attached at right angles to it, and also provided with an adjustable blade C, as herein shown, and for the purpose as set fort-h.

J ONAS S. HALSTED. CORNELIUS J. ACKERMAN. Witnesses:

Jos. Gino. MASON, JOHN MASON.

Images