US1994023A - Bevel square - Google Patents

Description

G. A. KOELMAN March 12, 1935.

' BEVEL SQUARE Filed July 29, 1952 gwmz toc "fi. a. Keel-m m I A amw,

Patented Mar. 12, 1935.

BEVEL SQUARE George A. Koelman, Cleveland, Ohio, assignor to George E. Dunstan, Cleveland, Ohio Application July 29, 1932, Serial No. 625,971

4 Claims. (01. 33-102) This invention relates to bevel squares and has for its main object to provide a bevel square for carpenters especially for use in the scribing of a line to enable'the cutting of a board so as to fit in making a joint, even when the edge of the illustrated in the accompanying drawing.

Figure 1 is a side elevation of a bevel square constructed in accordance with my invention,

Fig. 2 is an end view of Fig. 1,

Fig. 3 is a plan view of Fig. 1, and

Figs. 4 and 5 illustrate in elevation and plan views the use of the bevel square.

Referring to the drawing, 1 represents the handle or stock and consists of a pair of sides 2 and 3 fixed together by a central web 4 which terminates short of said sides as indicated at 5. A pair of blades 6 and 7 arranged in lateral spaced relation and fixed together at one end by transverse pins 8 and 9 are pivotally supported between the sides 2 and 3. For pivotally connecting the blades 6 and 7 to the sides 2 and 3, and providing for setting said blades in an adj sted position relative to said sides, a bolt 10 passes through openings 11 and 12 of said sides and openings 13 and 14 of said blades, and a thumb-nut 15 is provided for said bolt.

In practice, this bevel square may be used for various purposes, but is especially adapted for use in the marking of a board where the board is to be cut for making a neat or tight joint on an angle or bevel. For instance, the next piece of siding 16 is to be nailed to the rough-board 17 and the extending end 18 of said siding is to be marked so as when cut to fit against the edge 19 of the upright 20 even should said upright not be exactly perpendicular and therefore make an angle with said siding. The bevel square is ap plied by passing its blades 6 and 7 at each side of the siding 16 and bringing the web 4 against the edge 21 of said siding. Then tightening the" thumb-nut l5, and marking a line at '22 upon 5 the siding 16 using the outer edge of the. blade 6 as a guide.

From the drawing and description, it is thought that the bevel square illustrated and described will be fully understood and its advantages as a tool 10 especially for carpenters appreciated. It is to be understood that slight changes in the details of construction may be made within the scope of the claims.

Having fully described my invention, what I 15 claim is:

1. In a bevel square, the combination of a stock, a pair of opposedblades, the blades being in spaced relation and fixed rigidly together at one endto move as a unit, the blades being pivotally connected to said stock, and means for holding the blades relative to said stock.

2. In a bevel square, the combination of a stock, a pair of opposed blades, the blades being in spaced relation and fixed together at one end to move as a unit, the blades being pivotally and slidably connected to said stock, and means for holding the blades relative to said stock.

3. In a bevel square, the combination of a stock, a pair of opposed blades, the blades being in spaced relation and fixed together at one end to move as a unit, the blades having longitudinal slots, a bolt passing through said slots and said stock, and. a nut on said bolt for fixing said blades to said stock in an adjusted position.

4. In a bevel square, the combination of a stock, the stock consisting of a pair of sides fixed together by a central web, a pair of opposed blades, the blades being in spaced relation and fixed together at one end to move as a unit, the blades 40 having longitudinal slots, the sides of the stock having openings, a bolt passing'through said openings and said slots, and a nut on said bolt.

GEORGE A. KOELMAN.

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