US730849A - Combined rule and try-square. - Google Patents

Description

f/ OO any PATENTED JUNE 9, 1903.

No. 730,849. y WIT. WHITEWAY. COMBINED RULE AND TRY SQUARE. APPLIOATION FILED MAB., 16, 1903. `N0 MODEL.

O 5 Jim/022502? allianz e Patented June 9, 1903.

PATENT OFFICE.

WILLIAM T. Wl-llTllVAY, OF ST. JOHNS, CANADA.

COMBINED RULE AND TRY-SQUARE..

SPECIFICATION forming part of Letters Patent No. 730,849, dated June 9, 1903.

Application filed Marchl, 1903.

as an ordinary foot-rule, try-square,or a miter square and which shall be simple in construction, durable in use, and comparatively inexpensive of production; furthermore, to combine the try-square portion with the rule in such manner as to cause it to lie wholly Within the area of the rule when the latter is folded, thereby to render unnecessary any zo changing the construction of the ordinary rule, such as a carpenters two-foot rule, and to obviate the presentation of projections or elongations on the rule such as are commonly1 necessary in devices of this character in order' z 5 to eect connection of the try-square element therewith.

With these and other objects in view, as will appear as the nature of the invention is better understood, the same consists in the 3o novel construction and combination of parts of a combined rule and try-square, as will be hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, andin which like characters of reference indicate corresponding parts, there is illustrated one form of embodiment of the invention capable of carrying the same into practical operation, it being understood that the elements therein exhibited will be varied and changed as to shape, proportion, and exact manner of assemblage without departing from the spirit thereof, and in these drawings- Figure l is a viewin perspective of the implement as it appears when folded up. Fig. 2

is a view in plan exhibiting the try-square ele-v ment adj usted for squaring purposes and displaying also the graduation-marks by which the miterjoints maybe accurately made. Fig.

5o 3 is a view in vertical plan showing the trysquare clement in position for squaring purposes.

serial No. 148,099. (No mtd'el.)

Referring to the drawings,'l designates an ordinary rule, in this instance shown as of the two-foot folding type; but it is to be understood that the invention is not'to be limited to a rule of this length, as the invention is equally adaptable to a one-foot rule.

The present invention resides in a trysquare element 2, the same to be preferably of the same length and width as two members or legs of the rule when the same is in folded position, as shown in Fig'. l. This element is by preference made of wood, although it may be made of any other suitable material, and has its ends reinforced by metallic bands or guards 3, as usual. The element is pivotally connected at Il to one leg of the rule midway of its length and to one of the center sections where the rule is of the two-foot character and is provided on one side with a recess 5, in which is .adapted to fit an abutment or stop 6, rigidly secured to the adjacent rule-leg, the function of the stop being to hold the trysquare element exactly at right angles to the length of the rule when opened and exactly parallel with the edges thereof when closed, the first position being clearly shown in Fig. 3 and the secondpostion in Fig. 1. The abutment is herein shown as approximately rectangular in form; but it is to be understood that the invention is not to be limited to this precise arrangement, as it may be otherwise contoured and still be within the scope of the invention. Upon the upper side of the trysquare element there is provided means by which a tool ma f be associated with the said element,such toolin this instance being shown as a pair of dividers 7; but, if preferred, a scriber, pencil, or other implement may be likewise attached. The means for holding the dividers associated with the try-square element consists in a socket 8 and a guide 9, the socket being provided to receive the points of the compass and the guide the head portion thereof. These parts may be made of resilient material to cause them closely to hug the associated implement to prevent accidental loss and at the same time yto permit of its ready removal.

On the opposite side of the try-square element there is arranged a scale 10, the same consisting in suitable marks; either imprinted on the try-square or cut therein, each mark IOO I character to indicate its angle, the said scale being provided to enable the Workman to lay off the ruiter-joints at any desired angle.

The try-square attachment of this invention is adapted for connection with an ordinary rule, such as is in common use, Without necessitating any change whatever in its structural arrangement, except the provision of openings to receive the fasteningr devices of the element and of the abutment 6. In use it will be found exceedingly convenient and will in a thoroughly7 effective manner fill a long-felt want.

Having thus described the invention, what I claim is 1. The combination with one member of a folding rule, of a try-square element pivoted thereto of the same length as the member, and a stop or abutment carried by the adjacent rule member and operating to hold the try-square element, when opened, exactly at right angles to the rule and when closed to hold its edges parallel to and Hush With the rule.

2. The combination with folding rule, of a try-square element pivoted to one member thereof and provided in one edge with a recess, and an abutment secured to the adjacent rule member and adapted to fit Within the recess, the abutment operating to hold the try-square element, when opened at right angles to the rule and when closed, to keep its edges parallel to and flush with those of the rule.

In testimony whereof I have hereunto set my hand in presence of two subscribing Wit- DQSSGS.

WILLIAM T. WHI'IEWAY. Witnesses:

J AMES- L. NoRRIs, GEO. W. REA.

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