US1971267A - Square - Google Patents

Description

Aug. 21, 1934. KoLARovlc SQUARE Filed July 18, 1930 v2- Sheets-Shet l nvenlor Allorney Aug. 1934. v T KQLARVlC 1,971,267

l SQUARE Filed July 18. 1930 1 2 Sheets-sheet 2 nvenlor i @gmac/52M.

Allomey .Patented Aug. 2l, i934 what? NETE@ STATES PATENT FFEQ `1,971,267-k u Y H ksacarte Thomas Kolarovic, Mentor, Ohio Application July 18, A1930, Serial No. 468,919

3 Claims.

This invention relates to tools commonly used by carpenters in framing roofs and for analogous purposeaand consists in theprovision of a combined tool embracing both a square and bevel. l

The invention will be best understood from a study of the following description taken in connection with the accompanying drawingswherein: Y, Y

Figure 1 is a top plan view of the device.

Figure 2 is -a side elevational view thereof.

Figure 3 is a plan view of the dial.

Figure ll is a plan rView of a fence block. A

Referring to the drawings by'reference numerals it will be seen that the device comprises a substantially rectangular scale plate 5 of metal or other suitable material, a fence block 3l disposed against the under side of the plate` 5 and of a shape shown in Figure 4 having a straight edge 31', a dial or disk member 20 arranged on the top face of the plate 5, together with a stud 29 extending .downwardly through registering apertiues in the dial 20.and plate 5 and having its lower end engaged in 'a socket 30 provided in the fence block 3l, said lower end of the stud beingr threaded into the socket 30 and the upper end of the stud being provided a knurled head 28 that, when the stud is `threaded Vinto the socket 3o, will serve .to frictionally' retain the aforementioned parts atthe desired adjustment relative to one another. Y

On the top face of .the plate 5 and adjacent one edge thereof is a scale, while a scale '7 is provided on said top face adjacent the relatively opposite edge, and has extendinglaterally therefrom atrelatively opposite ends, short scales 8 and 9, the scales 6, 7, 8 and 9 being graduated in a manner common to the ordinary rule or straight edge, and are adapted tobe used in measuring ldifferent cuts and miters.

On said top face the plate 5 is also provided with a series of diierent graduations arranged in a circular manner as indicated generally at l0. One series of such graduations, for example, the series of graduations 16 are adapted to give the top and seat cut of Octagon rafters fromvone to twenty-four inch rise per foot, the rise number appearing adjacent the outer edge of the circle. The graduated arc 1'7 is for determining the cut of sheathing, hip and valley rafters. Graduations 18 are to be used for determining the top and side cuts cf hip and valley rafters from one to twenty-four inches rise per foot, the rise numbers, as in the case of the graduation 16, appearing adjacent the outer edge of the circle 10.

common raftersfrom one to twenty four inchesv '35 rise per foot run, the rise numbers appearing adjacent the outer edge of the circle. The dial or disk member 20 on its top face has a line 2l drawn through its diameter and atene side of this line 21 is an arcuate or segmental scale 22y having inner and outer series of graduations 23 and 24,' scale 22 being graduated in degrees, while at relatively 'spaced points in the circular scale 10 are zero indicators l1, 12, 13 and lll, adapted to be read against the graduations of the scale 22 so as to indicate to what angle the plate 5 is set in each particular case.

. Also on the dial 20. there is provided on that side of the line 21 opposite to the scale 22 segmental scales 25, 26, scale 25 being graduated for determining the sidey cuts of hip and valley rafters andscale 26 being graduated to determine the side cuts of hip and jack rafters.

' The use and operation of the device will be apparent from the following illustrations.

Let it be assumed that itis desired to make, for example, a square picture frame. Manifestly the angle of the ends of the several members of the frame must be forty ve degrees. In this connection the tool will be used as follows: First the fence-block 31 is disposed relative to the timber with its squared edge 31 placed against one edge of the timber. Next, the disk Yor dial 20 is set so` that the pointer 27 thereof extends at right angles tothe edge 3l of the fence-block 31. It will thus be seen that the pointer 27 will extend transversely of the timber. The plate 5 is rotated in either direction until one of the zero indicators 11, 12, 13 or la are lined with the fortyiive degree graduation on the scale 22 of dial 20. The stud 29 is then screwed down into the fence-block to hold the block 21, plate 5 and dial 20 in set position. With the parts in this position it will be apparent that the scale plate 5 will rest on the top face of the timber with two opposite edges thereof extending diagonally across the timber Yand then either of these said opposite edges may be used as a guide in making a mark on the timber to indicate the required cut or bevel.

Manifestly the device would be used in substantially the same manner formarking the anglesfor bevel cuts for Octagon or common timber rafters, the cuts of jack rafters, polygons and all other such cuts.

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31' of the fence-block will be disposed against one side edge of the rafter and the dial will be set so that its pointer 27 Will extend transversely of the rafter and at right angles to thevsquared edge 31 of the fence block. The scale plate 5 will then be rotated about the stud 29 as an axis until the graduation 5 of scale 16 is in alinement.

with the indicator or pointer 27, when the plate 5 will be disposed diagonally across the rafter. The stud 29 is then screwed down to secureithe y parts in set position and that edge ofl the scale plate 5 extending diagonally across the timber will be used for guiding the marking instrument in making a mark on the rafter to indicate the rafter cut. i Y

The common rafter cuts are determined in the same manner except of course that scale. 15y will be used; the hip and valley raiter cuts are determined by using the proper scale 17 and 18 while the scale 19. will be used for determining the side cuts of Octagon jack. For marking the side cuts of hip 'and valley rafters scale 25 on the dial 20 will be used, while scale 26' on said dial Will be used for marking the side cuts of hip and jack rafters. However in this connection it will be noted that in using, for example, the scale 26 for determining the side cuts of hip Yand jack rafters a selected one of the zero pointers l1, 12, 13 or 14, `determina-ble by a given pitch will be used and read against the graduations of the scale 26.

Even though I have herein shown and described the preferred embodiment of my invention, it is to be understood that the same is susceptible to changes fully comp-rehend'ed by the spirit of the invention herein described, and the scope of the appended claims.` Having thus described my invention, what I claim as new is l v 1. A carpenters tool for roof framing and Yanalogous purposes, comprising a fence-block having a squared edge adapted to be placed against one edge of a rater, a headed stud screw Vthreadedly engaged with theV fence bleek, a scale plate superimposed on the fence block and rotatable about the stud as an` axis', a circular dial superimposed on the scale plate, said scale plate and dials' being .secured in adjusted position between the fence block and the head of the stud when the latter is screwed home;l said plate having thereon, concentric tothe dial, ya circular series of arcuate scales, each of which is graduated in terms of inches rise per foot of common run in a pitch roof, and also having markings comprising tables of length of common run, and said dial having thereon a pointer adapted to be extended at right angles to the squared edge of the fence-block and to be read against the graduations of a selected scale for determining the angle at which the scale plate should be set for using an edge oi the plate as a guide for a scriber in making a mark for the required 'rafter cut.

2. Av carpenters tool for roof framing and analogous purposes comprising a fence block having a squared edge adapted to be placed against one'edge of a timber, a headed stud screw threadedly engaged with the fence block, a scale Aplate superimposed on the fence block, and a circular dial superimposed on the scale plate, said scale plate and dial respectively being rotatable about the stud as an axis and adapted to be secured in set rotative position between thefence block and the head of the stud when the latter is screwed home; said plate having thereon four indexes respectively arranged at the four points of the compass. about the dial, and said dial having thereon an arcuateY scale graduated in terms of degrees and against which a selected one of said indexesz is adapted to be readr forI determining the angle at which the scale plate should be set for using an edge of the platev as a guide for a Ascriber in making a mark for the required miter cut of any desired polygon.

3. A carpenters tool for` roof framing and analogous purposes, comprising a fence-block having a squared edge adapted to be placed against. one edge of a rafter, a headed stud screw threadedly engaged with the fence-block, a scale plate superimposed on the fence-block, and rotatable about the stud as an axis, a cire culardisksuperimposed on the scaler plate and having a centrally located aperture through which the stud extends, said scale plate and` dial being adapted to be clamped at the desired rotative adjustment between the, fenceblockfand the head of the stud when the latter is screwed home.; said plate thereon four indexes respectively xed at. the four points of the compass about the dial, and said dial having thereon arcuate scales, each. of which is graduated in terms of IinchesA rise per foot of' common run in a pitch roof,'and each scale being adapted to. be read against a selected one of the indexes determinable by a givenr pitch for determining the angle aty which the scale plate should be set for using an edge of the plate as a guide for a scriber in making a mark for the required rafter cut.

THOMAS KOLAROVIC.

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