US1106232A - Combination rule, square, and miter. - Google Patents

Description

C. M. MQFARLAND.

COMBINATION RULE, SQUARE, AND MITER.

APPLIOATION FILED r1111. 1a, 1013.

'IIIE NORRIS PETERS CO. I'HOTD-LITHO, WASHINGTON, D c

TED sra'rpsg rnnr clarion- CHARLES M. MQFARLANI), OF LINDEN, TEXAS, ASSIGNOR 0F ONE-HALF T0 W. R. NEAL, OF LINDEN, TEXAS.

COMBINATION RULE, SQUARE, AND MITER.

To all whom it may concern:

Be it known that 1, CHARLES M. MOFAR- LAND, a citizen of the United States, residing at Linden, in the county of Cass and State of Texas, have invented certain new and useful Improvements in Combination Rules, Squares, and Miters; 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.

This invention comprehencls improvements in combination devices and relates more particularly to attachments for folding rules which will make said rules capable of use as a square, try-square, and mlter.

The primary object of the inventionis to provide a device of this nature, which shall be of extremely simple construction, practical, and useful.

A more specific object of the invention resides in the provision of a folding rule having brace sections pivotally secured to its inner arms, said brace sections serving to hold said arms either at right angles to one another or at an angle of 45 and members secured to the rule for the purpose of guiding a line forming instrument.

With these and other objects in view, as will become more apparent as the description proceeds, the invention consists in cer tain novel features of construction, combination, and arrangement of parts, as will be hereinafter described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawings, in which,

Figure 1 is a top plan View of my device, showing in solid lines the sections of the rule at right angles and by dotted lines one of said sections forming an angle of 45 with the other, Fig. 2 is a fragmentary plan view showing the arms of the rule forming a 4l5 angle and the sliding members in their extended positions, Fig. 3 is a perspective view of one of the sliding members, Fig. 4 is a sectional view taken on the plane of line -d:--it of Fig. 1, Fig. 5 is a fragmentary View illustrating the means of connecting the free ends of the brace sections, and, Fig. 6 is an edge view of one of said sections.

Referring in detail to the drawings by numerals, 10 and 11 designate, respectively,

Specification of Letters Patent.

Application filed February 18, 1913.

Patented Aug. 4, 1914.

Serial No. 749,208.

the inner sections of a folding carpcnters rule of the ordinary type, said sections being connected by the common type of hinge 12. The rule section 10 is formed upon one face adjacent its inner edge with a shallow recess 13 and a brace section 14 is pivotally secured at one of its ends in said recess adjacent one extremity thereof. The brace section is formed of a strip of flat metal and is provided with a circular opening 15 and a notch 16, the notch being intermediate the free end of said section and the openin The rule section 11 is forned upon one face adjacent its inner edge with a longitudinal recess 17 similar to the recess 13 and a brace section 18 is pivotally secured at one of its ends within said recess adjacent the inner end thereof. This brace section is formed of a strip of flat metal and has secured thereto a headed pin 19 and a straight pin 20.

When it is desired to hold. the rule sections 10 and 11 at right angles to each other, the pin 20 is fitted within the opening 15 in the brace section 14 and the walls of the notch are engaged with the pin 19. When it is desired to lock the rule sections in such a position as to form a 45 angle, the brace section 18 is disengaged from the brace section 14 and the pin 20 seated within a hole 21 formed in the rule section 10. Then the parts are in this position, the brace section l-ft may be disposed within its recess 13. The bottom wall of the recess 17 is formed with the grooves 29 and 23 which receive the pins 1) and 20, respectively.

Sliding members 24: and 25 are mounted upon the rule sections 10 and 11, respectively, and serve as guides for line marking devices well as performing other usual functions. The sliding members 24 and 25 are similar in construction and each comprises a pair of metallic strips 26 connected at one of their ends by a solid head 27. The strips extend in parallel relation to each other from one face of said head and are formed with longitudinal slots 28. The head is beveled at an angle of 45, as inclicated at 29. The rule sections 10 and 11 are formed upon their faces adjacent their outer edges with longitudinal end opening re ccsses 30 in which the arms 28 of the sliding members are positioned. Retaining pins 31 and 32 secure said sliding members to the rule section and allow them a free longitudinal movement. It is to be noted that the retaining pin 32 carried by the rule section 11, is closer to the inner end of said section than the pin 31 carried upon the section 10 is to the inner end thereof. This permits the sliding member 25 to move beyond the sliding member 24 when the rule sections are positioned at an angle of as clearly shown in Fig. 2. If desired, a pin 33 may be formed upon the sliding member 24 for reception within an opening 25 formed in the beveled face of the sliding member 25, whereby said members are firmly connected when extended to form a 90 angle. This pin is received between the plates 26 of the sliding member 25 when said member is disposed at an angle of 45 with relation to the sliding member 24. WVhen the device is folded, the rule sections 34 and 35 hide the lbrace sections and protect the sliding memers.

From the foregoing description taken in connection with the accompanying drawings, it will be seen. that I have provided a simple device which may be used as a rule, square, try-square, and miter; which is very simple in construction; and which is very practical.

It is to be understood that while I have shown and described the preferred embodiment of my invention, I do not wish to be limited to this exact construction, combination, and arrangement of parts, but may make such changes as will fall within the spirit and scope of the invention.

Having thus described my invention, what I claim is 1. The combination with a folding rule of the character described, having longitudinal recesses formed in its inner sections adjacent their inner edges, of brace sections pivotally secured within said recesses, one of said brace sections being formed with a circular opening and an edge opening notch, a headed pin carried upon the other brace section for engagement with the walls of said notch,

and a pin carried upon said last mentioned section for engagement with the circular opening, said pins serving to connect the brace sections so as to hold the rule sections at a fixed angle, one of said rule sections being formed with an opening adapted to receive said second mentioned pin, whereby the rule sections may be locked to form another angle smaller than the first mentioned angle.

2. The combination with a rule of the character described, of means for locking the inner sections of said rule at fixed angles and sliding members carried upon said inner sections, said sliding members having bevel-ed faces adapted for engagement with each other, when the rule sections are fixed at an angle of 90.

3. The combination with a folding rule of the character described having, inner sections provided with recesses, of means for locking the inner sections of said rule at fixed angles, and sliding members carried upon said inner sections, said sliding members comprising parallel strips adapted to slide within the recesses formed in the rule sections, a solid head connecting said strips, the strips being provided with slots and fastening members carried by the inner sections and passing through said slots.

4. The combination with a folding rule of the character described having pivoted sec tions, of sliding members carried upon said sections, said sliding members having beveled faces for engagement with each other when the rule sections form an angle of 90, one of the sliding members being formed with a recess and means carried by the other of the sliding members for reception within the recess.

In testimony whereof I atlix my signature in presence of two witnesses.

CHARLES M. MoFAR-LAND.

Witnesses i J. C. VVEATHERALL, F. B. DELL.

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

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