US710891A - Try-square. - Google Patents

Description

Patented Oct. '7, I902.

S. R. PUGH.

TRY SQUARE.

[Application filed Jan 24, 1902,)

(No Iodel.)

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UNTTnn STATES PATENT FFICE.

SAMUEL RESS PUGH, OF HOUSTON, TEXAS.

TRY-SQUARE.

SPECIFICATION forming part of Letters Patent N 0. 710,891, dated October '7, 1902.

Application filed January 24, 1902. Serial No. 91,123. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL Russ PUGH, a citizen of the United States, residing at Houston,in the county of Harris and State of Texas,

have invented new and useful Improvements in Try-Squares, of which the following is a specification.

This invention relates to try-squares; and the aim of the present improvement is to provide means for continuing a scribe or mark around the edge of a board or piece of timber to correspond to a main indication accurately on both sides without changing the position of the square, and, further, to have the main blade of the square constructed for gaging or ruling by the provision therein of apertures to receive the point of a pencil or other marking device. I

The invention consists in the construction and arrangement of the several parts, which will be hereinafter more fully described and claimed.

1n the drawings, Figure 1 is a perspective view of a try-square embodying the features of the invention. Fig. 2 is an edge elevation of the same in position for use. Fig. 3 is a plan view of the improved square in such position as to adapt it for marking purposes, particularly in drawing bevel-lines for miters and the like.

Similar numerals of reference are employed to indicate corresponding parts in the several views.

The numeral 1 designates the stock, having the usual blade 2 secured therein, which is provided along one edge with a series of apertures 3, from which scale-marks 4 project. These scale-marks and the apertures may be at any distance apart in accordance with the divisions, and the function of the apertures is to receive the point ofia pencil or other marking device for the purpose of accurately defining a mark on the wood or material on which the square is used relatively to the adjacent bearing edge of the stock 1. By this means it will be seen that the stock and blade can be moved over the material and the blade held positively in position on the material by pressing the stock against the side edge of such material, and thereby insure the formation of a straight mark. The blade 2 is also provided with a series of obliquely-arranged apertures 5, through which a pencil-point or other marking device is adapted to be projected to lay off bevel or miter lines, and after theseindications have been applied to the material operated upon the blade 2 or a portion of the device which will be hereinafter set forth may be used for connecting the marks applied through such use of the said apertures 5.

The improved square also, includes an auxiliary blade 6, which is disposed in a plane at right angles to the blade 2 and has an angular shank 7, bearing upon said blade 2 within the extremity of the stock 1, as clearly shown by Fig. 2. The free end of the auxiliary blade 6 is formed with an elongated bevel 8, which is adapted'to be used to draw lines between points indicated by markings through the medium of the apertures 5, the square as an entirety being disposed in the manner shown by Fig. 3 for this purpose, so as to bring the edge 8 of the blade over the work and in coincidence with the bevel or miter marks. The auxiliary blade 6 is held in immovable or rigid relation to the blade 2, and the instrument as an entirety can be positively relied upon to accurately square the work.

In addition to the uses of the improved square as set forth the auxiliary blade 6 may be used to continue a mark or indicating-line at opposite sides of a board or piece of timber relatively to a transverse mark produced by the aid of the blade 2, as the edge 9 of the auxiliary blade accurately intersects the adjacent edge of the blade 2, having the scalemarks 4 and apertures 3. The blade 6 always being in the same relation to the blade 2 will permit the square to be reversed to operate with opposite sides of a board or piece of timber, and in squaring and marking strips of comparatively small transverse extent the auxiliary blade 6 may be used, and-thebroad side of the stock 1 in suchoperation will be brought to bear against the adjacent side edge of the strip.

The square will befound enceptionallyconvenient for general purposes, and many other advantages will appear from time to time to those using the same. It will be understood, of course, that the blades 2 and 6 will be formed from. suitable tempered metal, as in ordinary try-square constructions, and the Width and length of both blades may be varied at will, as well as the stock 1.

Having thus described the invention, what is claimed as new is 1. Atry-square comprisingastock provided with a main blade, and an auxiliary blade immovably and rigidly held in a plane at a right angle to the main blade and located at the inner edge of the said stock over said main blade, the said auxiliary blade having the inner corner of its free end formed with an elongated bevel.

2. A try-square comprising a stock provided with a main blade having scale-marks on the outer edge portion thereof leading to a plu- SAMUEL BESS PUGH.

lVitnesses:

J. M. WRIGHT, M. M. 00X.

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