US607101A - Combined square and bevel - Google Patents

Description

No. 607,10l. Patented July l2, I898.

G. F. WABNUGK.

COMBINED SQUARE AND BEVEL.

(Application filed Feb. 3, 1897.)

(No Model.)

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llNTTED STATES,

I PATENT Enron.

COMBINED SQUARE AND BEVEL.

SPECIFICATION forming part of Letters Patent N 0. 607,101, dated July 12, 1898.

Application filed February 3,1897. Serial No. 621,736. (No model.)

To all whom zit may concern:

Be it known that I, GEORGE F. WARNooK, a citizen of the United States,residing at Jacksonville, in the county of Duval and State of Florida, have invented certain new and useful Improvements ina Combined Square and Bevel; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Myinvention relates to certain new and useful improvements in combination-tools, and particularly to the class known as squares, which are commonly used by carpenters and other mechanics.

My invention comprises certain novel features of construction and arrangement of parts, whereby certain important advantages are gained in a simple, inexpensive, and effectual manner, as will be hereinafter more fully described, and specifically defined in the appended claim.

111 the. accompanying drawings, Figure 1 represents a perspective view of a square em bodyingmyinvention. Fig. 2 is an edge View of the same, looking toward the blade. Fig. 3 is a similar'view looking toward thehead of the square. Fig. 4 is a-plan View showing parts arranged to form a straight-edge and T- square, and in this position it maybe used to describe a circle. Fig. 5 is a similar view showing the parts in position to describe a smaller circle, and Fig. 6 shows myinvention arranged to form an angle of forty-five degrees.

Similar reference-numerals indicate corresponding parts in all the figures.

1 represents the head, and 2 the blade, of the square, set at right angles to each other, as usual. The head 1 is formed of two parallel plates of metal 3 and 4t, and between these plates two thin L-shaped pieces or blades 5 and 6, of metal, are placed, one branch of which forms the blade 2 of the square while the other branch is riveted to the head- plates 3 and 4, a block 7, however, being inserted between them at each of their extreme ends, and through these blocks and the adjacent head- plates 3 and 4 and blades 5 and 6 rivets are passed to unite the same. By this construction it will be seen that a space 9 is formed from the intervening block at one end of the blades 5 and 6 to the other end, and this space is designed to receive a slotted strip of metal 10,.held in place therein by means of a set-screw 11, which passes through it and a hole in one of the head-pieces, the opposing head-piece being tapped and threaded to receive the end of the screw. This strip 10 at each end is provided with a niche 12, and the inner end of one plate of the headpiece is recessed at 13 to admit of the nail of the finger engaging said niche, and withdrawing the strip. The strip is also provided with suitable graduations, such as inches, and multiplications and fractions thereof to any degree of fineness. There are also radiating lines thereon, which I have marked forty-five degrees and sixty degrees, respectively, and

these lines may be multiplied, so as to set the blade at a glance to any angle required, as will be readily apparent.

The strip is provided with a longitudinal slot 12, having at its center and one end lateral offsets 13, which are intended for engagement with the shank of the screw, in which position a circle of a diameter corresponding with the length of the strip may be described, the shank of set-screw 11 forming the point of radius. At the other end of the strip the slot has an enlargement 15, adapted to engage with the screw in describinga large circle, as will be readily understood.

In setting my improved tool to determine the degree of any bevel or to mark upon the work any predetermined bevel the strip 10 is adjusted to bring either one end or the other of its slot into engagement with the shank of the screw 11, after which a movement to the left or right will bring the radiating line marked upon the strip and representing the angle required in-to alinement with the edge of the blade, when a turn of the screw 11 will suffice to draw the sections of the head together, and thus secure it firmly in place.

It will thus be seen that my invention possesses many advantages, and by its use a bevel, thumb-gage, and circle is provided and can be readily adjusted to any depth. In every case the work is done from a true square. It is obvious also that by withdrawing the plate 10 to its fullest extent all the advantages of aT-square are gained and that by pushing the said plate back again a inortise-square is obtained of any depth desired.

Having thus described my invention, What I claim, and desire to secure by Letters Patent, is as follows:

A square comprising a head and blade that are rigidly united and having a central space or division extending into both the head and blade, a graduated strip adapted to fold in and occupy said space, and having a longitudinal slot provided at the center and end with lateral olfsets and at the other end with a terminal enlargement, and a set-sorew pass ing through the square at the intersections of the head and blade and adapted to engage said slot substantially as and for the purpose described.

In testimony whereof I have signed this specification in the presence of two subscrib ing Witnesses.

GEORGE F. WARNOOK.

Vitnesses:

J. T. BRYAN, II. Moss.

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