US1252328A - Templet. - Google Patents

Description

D. DAWSON.

TEMPLET. APPLICATION FILED IuLYZI. I9I4. RENEwED IuNE 20, I9I7.

Patented J an. 1, 1918.

35m/vanto@ DONALD DAWSON, or vIO'IOnIA, BRITISH COLUMBIA, CANADA.

TEMPLET.

Specification of Letters Yatent.

Patented J an. 1, 1918.

Application led July 21, 1914, Serial No. 852,214. Renewed .Tune 20, 1917. Serial No. 175,971.

To all 107mm t may concern:

Be it known that l, DONALD DAwsoN, a citizen of Canada, residing at Victoria, in the Province of British Columbia and Dominion of Canada, have invented new and useful Improvements in Templets, of which the following is a specification.

This invention is an improved templet for use by carpenters and stair builders for marking or scribing the notches or housings in the stairs or stringers to receive and hold therein the end portions ofthe treads and risers, the object of the invention being to provide an improved tool of this class which is extremely cheap and simple, and which may be folded compactlv for storage and translmrtation when not in use.

The invention consists in the construction, combination and arrangement of devices hereinafter described and claimed.

1n the accompanying drawings Figure 1 is a side elevation lof a. templet constructed in accordance with my invention and showing the same arranged fo-r use.

Fig. 2 is an elevation of the same folded.

Fig. 3 is a detail sectionalview of the same on the plane indicated by the line a-a of Fig. l. l

Fig. 4c is a view showing the manner of using the device.

My improved templet comprises a pair of arms 1-2 which when the tool is in use are at right angles to each other. The arm 2 is connected to the arm 1 near one end of the latter, by a pivot rule joint which adapts the arm 2 to be extended at right angles to the arm 1 for use as shown in Fig. 1 and to be folded against the same for compact stowage, as shown in Fig. 2. The arms taper in one direction and the narrower end of the arm 2 is pivotally o-r hingedly connected near the corresponding end of the arm 1. Vhen the arm 2 is at right angles to the arm 1 the outer edge 4 of said arm 2 is at right angles to the corresponding outer straight edge 5 of the arm 1. Scales 6 are marked at the outer edges 4:-5 of the members 2-1 and preferably in units or graduations or one twelfth of an inch representing a scale of one inch to a foot. The narrower inner end of the arm 1 is rounded as at 7 and forms a projection which extends beyond the arm 2 and is adapted for marking the nosing on the treads of the stairs.

The arm l is provided near the end 7 with small circular openings 9 formarking centers of bits for use in boring out the first part of the housing. The ams 1-2 are provided with slots 10 which are parallel with the face edges 1 5 of said arms and are for` use in marking the cuts of treads and risers in the construction of the open stairs and for carriages and the like. Each of the arms is. also provided with a longitudinal slot 11 parallel with the outer edge and these slots are engaged by clamping screws 12 which form the pivots for straight edge members 13 and adapt said straight edge members to be adjusted longitudinally and to any required angle with respect to the arms of the templet.

The rear or inner edges of the arms are out of parallel with the face edges thereof and both of the arms taper in the same direction so that one cutting of the wedges will suffice for either the treads or risers.

In building stairs it is customary to mark upon the side pieces or stringers lines for the risers and treads of the steps. Under the nosing of the tread and on the upper edge of the riser there is always a fillet. and in good stairs this fillet as well as the tread and riser is housed into the stringers, and then all the parts wedged up together. ln the use of my invention, the members 13 are properly adjusted along the graduated edge portions of the arms 1 and 2 with regard to the desired width of the tread and height 3f the riser, so that when the tool is placed against the Stringer. the members 13 will engage the lower edge thereof to hold the tool steady while the lines are drawn about the arms of the tool. In order that the stringer may be properly marked for the accommodation of the fillet during the marking of the stringer for the tread and riser, l provide the arm 1 with a lillet tent plet 8 disposed in the angle between the arms 1 and 2 as clearly shown7 thus permitting the stringers to be marked in a continuous movement of the pencil. while marking the Stringer for the tread and riser member. lf the fillet is not to be housed7 but simply put in between the stringers as it is sometimes done, the operator would simply draw the lines along the outer and inner edges of the arms disregarding the fillet templet 8.

From the foregoing the use of the tool will be readily understood by those skilled in the art it being apparent that the straight Ynotches in the string may be marked in the Well known manner by moving a scriber along the inner and outer edges of the arms.

Having thus described my invention7 I claim :k

A templet of the class described comprisi-ng a pair'fof pivoted arms adapted to be arranged at a right angle to each other, one of said arms having a rounded end portion projecting beyond the other of said arms and adaptedto be used vfor marking nosings, said first mentioned arm also having a fillet templet'arranged in the angle between said projecting end portion and the other of said arms, said arms having slots, and straight edge members pivotally and adjnstably mounted on said arms and having their pivots arranged in said slots. In testimony whereof 'affix my signature in presence of tWo Witnesses.

DONALD DAVSON. Witnesses Y CHARLES JELLYMAN, ALBERT CHATTON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. C.

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