US2178021A - Marking square - Google Patents

Description

Od. 3l, 1939. w L MEERS 2,178,021

MARKING SQUARE Filed Oct. 7, 1938 Patented Oct. 3K1, 1939 PATENT oFFlcE MARKING SQUARE William Lee Meers, Engle, N. Mex'.

Application October 7,

2 Claims.

My invention relates generally to length and angle measuring and marking means, and particularly to a marking square especially adapted for use by engineers and carpenters, particularly in estimating and marking timber for the construction of buildings, and the like, and an important object of my invention is to provide arrangements of the character indicated above which enable easy, quick, and accurate measurements of length and angles, and the marking of the material accordingly.

Other important objects and advantages of my invention will be apparent from a reading of the following description taken in connection with the drawing, wherein for purposes of illustration I have shown a preferred embodiment of my invention.

In the drawing:

Figure 1 is a face or plan View of the embodiment.

Figure 2 is a transverse vertical sectional view taken through Figure 1 approximately on the line 2-2.

Figure 3 is a longitudinal sectional view taken through Figure 1 approximately on the line 3 3.

Referring in detail to the drawing, the numeral 5 generally designates an open square which is comprised by the degree of angle side 6, the tongue 1, the base 8, and the supplementary tongue 9. The base is formed with a slot I0 which is located midway between the inner and outer edges of the side 8 and which extends at the right hand end beyond the junction point of the sides 1 and 8 and at the left hand end extends only as far as the inner edge of the side 9.

The degree angle blade 6 is longitudinally divided by angulated lines II which radiate from the point I2 at the left hand end of the slot I0 and meet at the outer edge of the blade 6 the linear marks I3, the latter running between points aligned with the opposite ends of the slot The sides 9 and 1 have graduation marks I4, I5, respectively, which are approximately one inch apart, the distance between the first mark and the last one being twelve inches. The respective numerals I6, I1 designate the indicia on the graduation marks I4, I5, respectively, which run in opposite directions on the sides 1, and 9, starting at a point aligned with the slot lil in the case of the side 1 and ending at the top thereof, while starting at the top of the side 9 and ending at a point aligned with the slot Ill in the case of the side 9.

The base 8 is also divided by graduation marks 1938, Serial N0. v233,846

I8 spaced at one inch intervals and starting at the right hand end of the slot l0 with the designating numerals I9 running from right to left and as far as the left hand end of the slot I0. The spaces between adjacent graduations on the sides 5 1, 9 and 3 may be sub-divided as generally ndicated by the numeral 28 for intermediate measurements into twelve and twenty-four parts.

A marker which is generally designated 2l comprises a straight rule composed of the sec- 10 tions 22 and 23, the section 22 lying along the back of the square 5 with the section 23 lying along the front of the square 5. The free end of the marker 2| is traversed by a bolt 24 which is provided with a thumb nut 25 for clamping pur- 15v poses. The opposite end of the marker is offset as indicated by the numeral 26 and in the center of the offset there passes a bolt 21 which is passed slidably through the slot I0, and this bolt has adjacent the threaded portion thereof a squared 20 portion 28 to carry in the desired erect position a pointer 29 for cooperation with the graduations I8 on the base side 8 of the square. A nger nut 29 is provided on the threaded end of the bolt and outside of the pointer 29', al1 as indicated 25 in Figure 2 of the drawing, for clamping the marker in an adjusted position. It will be observed that the bolt 21 is aligned with the under edge of the marker 2 I.

It is believed obvious that in order to nd the 30 angularity with the horizontal, represented by the base 8 of any proposed component of a building the width or length of the building is represented by placement of the pointer 29 to a position along the base 8 representing the length of 35 width or a half thereof, and then swinging the marker along the side 1 to the graduation I5 which represents the height above the horizontal to-which the component will rise in the completed building, and to then read down the marker 2I 40 by means of its one inch spaced marks 30 with their accompanying designating indicia 3|, the length of the component, such as a rafter or the like. The marker 2l is graduated from the center of the pivot bolt 21.

The device of the invention having been applied to the end portion of the timber with the side 1 and the edge of the marker extending beyond the side 1, the marking of the bevel of the timber is done, the thumb nuts 25 and 29 having iirst been tightened to retain the adjusted position of the marker.

For various other angularities beyond a diagonal through the square with the bolt 29 located at 55 the point I2, the angularity indicating lines I I are brought into service.

Although I have shown and described herein a. preferred embodiment of my invention, it is to be definitely understood that I do not desire to limit the application of the invention thereto, and any change or changes may be made in the materials and in the structure and arrangement of the parts, within the spirit of the invention and the scope of the subjoined claims.

Having described the invention, what is claimed as new is:

1. An angle and length measuring and marking device comprising an open square composed of a base side formed with a slot running parallel to an edge of the base side, two opposed tongues, and a degree-of-angle side opposed to the base side, a marker comprising a pivot at one end slidable along said slot, said marker being of greater length than the Width of the square, said marker comprising a rst section lying against the back of the square, a second section lying against the front of the square, and clamping means at the free end of the marker and traversing both sections for clamping the sections against the square to hold the marker in an adjusted position.

2. An angle and length measuring and marking device comprising an open square composed of a base side formed with a slot running parallel to an edge of the base side, two opposed tongues, and a degree-of-angle side opposed to the base side, a marker having a laterally offset part at one end thereof, a pivot passing through the oiset portion and through the slot, a pointer carried by the pivot and said marker being of greater length than the Width of the square.

WILLIAM LEE MEERS.

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