US1125010A - Rafter-tool. - Google Patents

Description

(LADONER. BAFTER TOOL.

APPLICATION TILED MAB-{16, 1914.

Patented Jan. 12, 1915.

HIP V- VALLE Y COMMON JACK I INVEN TOR C lr/arZem/ifio 7267" TORNEYS THE Nflunle nlrrI-TRS c0. PHOTO-LITHQ. WASHINGTON. D. C.

FFTCE.

CHARLES ARTHUR DONER, OF SPOONER, WISCONSIN.

Specification of Letters Patent.

Patented Jan. 12, 1915.

. Application filed March 16, 1914. Serial No. 824,960.

To all whom it may concern Be it known that I, CHARLES A. DONER, a citizen of the United States, and a resident of Spooner, in the county of Washburn and State of Wisconsin, have invented a new and Improved Rafter-Tool, of which the following is a'fu1l,'clear, and exact description.

This invention relates to instruments of precision and has particular reference to tools or implements used by carpenters or other artisans.

Among the objects of the invention is to provide an implement of the character indicated which is of the most simple and reliable construction, being made preferably of but one integral piece of metal, the same being adapted to be applied to a stick to be cut and whereby the stick may be marked for both the top and side bevels for a rafter with but a single application of the implement.

The foregoing and other objects of the invention will hereinafter be more fully set forth and claimed and illustrated in the drawings forming a part of this specification in which like characters of reference indicate corresponding parts in all the views, and in which- Figure 1 is a perspective View of a preferred form of the implement; Fig. 2 is a side view of a stick with my device applied thereto; Fig. 3 is a top plan View thereof; Fig. 4 isa view indicating the form of the blank of the device before it is bent into an angle, this figure indicating the relative angles of the top and side bevels.

The several parts of this device may be made of any suitable materials, and the relative sizes and proportions, as well as the general design of the implement, may be varied to a considerable extent without departing from the spirit of the invention hereinafter more fully set forth and specifically claimed.

Referring more particularly to the drawings in which I show a preferred embodiment of the invention as a plicable particularly to the marking and bevels for rafters, joists, studding, hopper bin lining planks, etc., the implement comprises a body (4 consisting preferably of a single sheet of material of any rigid or substantial nature substantially of the form shown in Fig. 4-, the form being generally cutting of the triangular or in the form of a trapezoid side a. Y

The two ends of the device are symmetrical, one end being arranged for marking the bevels of one end of the stick and those of the other end for marking the opposite character of bevels.

For common rafters, the sides only of said rafters are marked with my tool, along a deslred guide of desired pitch, after which the edge of the rafter is marked by the aid of a square, the saw out then being made to follow the inclined mark on the side and the square mark on the edge. For jack rafters, the mark is continued, from the desired inclined mark on the side of therafter, across the edge of the rafter by means of the desired inclined guide at the'top of the tool, and the saw out is made to follow both side and edge marks simultaneously, and this applies also to timber or lumber which it is desired to out at angles of desired pitches,

having one very short side I) and a longer on the side alone, or onboth side and edge.

and side bevels for the 10, 8 and 6 inch rises respectively. The broad principle of this invention lies especially in the use of the implement having a series of associated guide lines or edges whereby the top and side bevels may be marked by a single application of the implement to the'sti'ck to be out. It is obvious that the particular angles may be variously formed according to the use of the tool as, for instance, for jack and common rafters or for hip and valley rafters, without departing from the spirit of the invention. It is also to be observed that either face of the implement may be suitably inscribed with legends indicating the lengths of various rafters, either hip and valley or common or j aok, for each running foot according to the various pitches, adding to the utility of the implement.

The edges 6 and 0 are preferably flanged to stiffen the implement along those portions and to practically obviate the possibility of bending or Warping it out of shape.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent 1. The herein described carpenters implement comprising a single piece of material of sheet construction and of right angular form in cross section adapted to be applied to the top and lateral sides of a rafter to be cut, the ends of the device being symmetrically arranged, each end being provided with a series of fixed guides representing the top and side bevels of the various pitches of the rafter and the guides at one end being arranged reversely to those of the other.

2. A carpenters implement, formed of a blank of sheet metal having symmetrically inclined ends and parallel sides of different lengths and provided with a plurality of slots radiating from the shorter side, each slot being directed along two lines at an 0btuse angle to each other and the junction of said lines of all of said slots being on a line parallel to said sides and said blank being angularly bent on the line of said junctions. In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES ARTHUR DONER. Witnesses J. M. SMITH, J. E. ENGQUEST.

Gopiea of this patent may be obtained for five cents each, by addressing the Commissioner 01 ratents,

Washington, D. G.

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