US3670418A

US3670418A - Angularly adjustable square holder

Info

Publication number: US3670418A
Application number: US60827A
Authority: US
Inventors: David G Hamilton Jr
Original assignee: Individual
Current assignee: Individual
Priority date: 1970-08-04
Filing date: 1970-08-04
Publication date: 1972-06-20
Anticipated expiration: 1989-06-20

Abstract

A holder composed of rotatively adjustable sections or halves each adapted to detachably support a square, such as a framing square, and combining with the two squares to provide a protractor-like instrument capable of supporting the blades of the squares at different desired angles relative to one another for use in accurately lining up pipes preparatory to joining the pipes by welding. An outer side of each holder half is grooved to adjustably receive a blade of one of the squares which is clamped therein. The holder halves are capable of being clamped together in different rotatively adjusted positions for accurately positioning the other blades of the two squares at desired angles relative to one another.

Description

United States Patent [151 3,670,418 Hamilton, Jr. [4 June 20, 1972 [54] ANGULARLY ADJUSTABLE SQUARE 1,920,839 8/1933 Cattaneo ..33 174 .1

HOLDER Primary Examiner-Harry N. Haroian Attorney-John N. Randolph [57] ABSTRACT A holder composed of rotatively adjustable sections or halves each adapted to detachably support a square, such as a framing square, and combining with the two squares to provide a protractor-like instrument capable of supporting the blades of the squares at different desired angles relative to one another for use in accurately lining up pipes preparatory to joining the pipes by welding. An outer side of each holder half is grooved to adjustably receive a blade of one of the squares which is clamped therein. The holder halves are capable of being clamped together in different rotatively adjusted positions for accurately positioning the other blades of the two squares at desired angles relative to one another.

6 Claims, 1 1 Drawing Figures PATENTEDaunzo m2 3,670,418

' sum 10F 2 INVENTOR DAVID G. HAMILTONJR.

ATTORNEY 'PZTEN'TEDJum m2 sum 2 or 2 INVENTOR DAVID G. HAMILTON,JR.

ATTORNEY ANGULARLY ADJUSTABLE SQUARE HOLDER SUMMARY It is a primary object of the present invention to provide a device of extremely simple construction capable of supporting two conventional squares with the blades of the squares at different desired angles relative to one another to provide a protractor-like instrument which may be effectively employed in lining up pipe joints prior to welding.

Another object of the invention is to provide means for accurately clamping the holder halves together in different rotatively adjusted positions relative to one another for accurately locating the blades of the two squares at predetermined angles relative to one another.

Various other objects and advantages of the invention will hereinafter become more fully apparent from the following description of the drawings, illustrating a presently preferred embodiment thereof, and wherein:

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a top plan view of one side of the holder;

FIG. 2 is a top plan view of the opposite side thereof;

FIG. 3 is a plan view of the inner side of one of the holder halves;

FIG. 4 is a plan view of the inner side of the other holder half;

FIG. 5 is an enlarged edge elevational view looking from top to bottom of FIG. 1;

FIG. 6 is an enlarged sectional view through the holder, taken substantially along a plane as indicated by the line 6-6 of FIG. 1; and

FIGS. 7 through 11 are plan views showing the holder with the squares attached thereto and disposed in different angularly adjusted positions, to illustrate some of the many uses of the device for lining up pipe joints for welding.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring more specifically to the drawings, and first with reference to FIGS. 1 to 6, the square holder in its entirety and comprising the invention is designated generally 12 and includes two

discs

13 and 14 of the same diameter.

The disc 13 has an outer side 15 provided with two walls 16 and 17 and which protrude therefrom or are embossed thereon. Walls 16 and 17 converge to form a right angle. An opening 18 is formed in the center of the disc 13 at the apex of the walls 16 and 17, as seen in FIG. 6. The surface 15 also has embossed thereon

walls

19 and 20 each of which extends around a portion of the periphery of the disc, and which are likewise disposed at right angles to one another. An inner surface of the wall 19 faces an outer surface of the wall 16 to form a groove or channel 21 therebetween. Similarly, an inner surface of the wall 20 faces an outer surface of the wall 17 to form a groove 22 therebetween. The wall 19 is thicker than the wall 20 so that the groove 22 is wider than the groove 21. A part of the outer surface 15 at the periphery of the disc 13 and between adjacent ends of the

walls

19 and 20 provides a portion 23 defining an arc of 90 through which adjacent ends of the two

grooves

21 and 22 open, so that both grooves are open at both ends, for a purpose that will hereinafter become apparent. The

walls

19 and 20 have radial bores 24 to receive

setscrews

25 and 26, respectively, which extend inwardly therethrough.

The inner face 27 of the disc 13, as seen in FIG. 3, has eight radial grooves 28 extending between the central opening 18 and its periphery, and which are equally spaced from one another an angles of 45. As seen in FIG. 5, the grooves 28 are of V-shaped cross section or end elevation.

As seen in FIG. 2, the outer side 29 of the disc 14 has walls 30 and 31 corresponding to the walls 16 and 17, respectively, and

walls

32 and 33 corresponding to the

walls

19 and 20, respectively, to form grooves or

channels

34 and 35, corresponding to the grooves or

channels

21 and 22, respectively. The surface 29 has a portion 36 corresponding to the surface portion 23.

Walls

32 and 33 have threaded bores 37, corresponding to the bores 24, for receiving

setscrews

38 and 39, corresponding to the

setscrews

25 and 26, respectively. The inner face 40, as seen in FIG. 4, has a threaded stud 41 projecting perpendicularly from the center thereof, and is provided with four equally spaced radial ribs 42 which extend from the stud to its periphery, and which are likewise of V- shaped cross section or end elevation to fit into grooves 28.

To assemble the

discs

13 and 14 together, the stud 41 is passed outwardly through the bore 19 and one or the other of the discs is rotated until the four ribs 42 can seat in four of the grooves 28 to position the

faces

27 and 40 in abutting engagement, as seen in FIGS. 5 and 6. A washer 43 engages the stud 41 and is disposed between a thumb nut 44, carried by the stud, and the surface of the apex of the walls 16 and 17 surrounding the opening 18, so that when the nut 44 is loosened the discs can be separated sufficiently to allow one of the discs to be rotated relative to the other for changing the angular positions of the

grooves

21,22 relative to the

grooves

34,35. The eight grooves 28 enable the discs to be set at eight different angularly adjusted positions relative to one another at 45 angles, and when the nut 44 is tightened with the ribs 42 engaging alternate ones of the grooves 28, said discs are clamped in any one of the eight aforementioned angularly adjusted positions.

Referring to FIGS. 7 to l 1, each

disc

13 and 14 is adapted to support a blade of a conventional square such as the

framing squares

45 and 46. Said squares each includes a narrow blade 47 and a wider blade 48. The

grooves

21 and 34 are of a width to accommodate the narrow blades 47 and the

grooves

22 and 35 are of a width to accommodate the wider blades 48 which are clamped therein by tightening the

setscrews

25, 26, 38 and 39 which are associated with said grooves.

In FIGS. 7 to 11, the wider blades 48 are shown clamped in the

wider grooves

22 and 35 although it will be apparent that the narrower blades 47 could be clamped in the

narrow grooves

21 and 34.

In FIG. 7, a pipe 49 is shown positioned against the outer edge of one blade 47 and a flange 50 is positioned on an end of the pipe 49 and against the inner edge of the other blade 47, correctly disposed for welding. The two blades 47 and the two blades 48 are disposed at right angles to one another.

In FIG. 8, thetwo blades 47 and the two blades 48 are also shown at right angles to one another but differently positioned with respect to their positions of FIG. 7.

Pipes

51 and 52 are shown in position along and against the outer edges of the blades 47 and a elbow 53 is shown positioned between and abutting adjacent ends of the two

pipes

51 and 52, preparatory to welding the elbow to said pipe ends. The positioning of the

squares

45 and 46 in FIGS. 7 and 8 can be accomplished without angularly adjusting the

discs

13 and 14 relative to one another, and simply by rotating the blade 48 of the square 45 a half revolution about its axis and varying its position lengthwise of the groove 22.

In FIG. 9, the

discs

13 and 14 have been angularly adjusted to position the

grooves

22 and 35 and the blades 48 at an angle of 45 to one another, so that the blades 47 will form an angle of Two

pipes

54 and 55 are positioned against the outer edges of the blades 47 and a 45 elbow 56 is disposed between and in abutting engagement with the adjacent ends of the

pipes

54 and 55 prior to being welded to said pipe ends.

In FIGS. 10 and 11, the

discs

13 and 14 have been adjusted to position the

wide grooves

22 and 35 parallel to one another to receive the blades 48. In FIG. 10, the blades 47 are disposed in alignment with one another for aligning the two

pipes

57 and 58 which are disposed against the outer edges of said blades and with their adjacent ends abutting preparatory to welding said abutting ends together. In FIG. 1 1, the blades 48 are clamped in the

grooves

22 and 35 so that the blades 47 are parallel to but offset relative to one another. A pipe 59 is disposed against and along the outer edge of the blade 47 which is disposed more remote from the holder 12 and one end of a 90 elbow 60 abuts the outer edge of the other blade 47, for accurately positioning its opposite end in abutting engagement with an end of the pipe 59 for welding said last mentioned elbow end to the pipe.

Various modifications and changes are contemplated and may be resorted to, without departing from the function or scope of the invention.

I claim as my invention:

1. A square holder comprising two members, means rotatively connecting said members together in parallel relation to one another, said members having outer parallel surfaces each provided with an open ended groove therein to receive a blade of a square, means for adjustably clamping said squares in said grooves and means for adjustably securing said members together with said grooves and the blades received therein in different angularly adjusted positions relative to one another for positioning the other blades of the squares at different desired angles relative to one another.

2. A square holder as in claim 1, said members each comprising a disc, one of said discs having a central opening, and a stud projecting perpendicularly from the center of the other disc and extending through and being tumably disposed in said opening and constituting said means for rotatively connecting the discs.

3. A square holder as in claim 2, said stud being threaded, and a nut threadedly engaging the stud and combining therewith to form said means for securing the discs together with the grooves in different angularly adjusted positions relative to one another.

4. A square holder as in claim 3, the inner face of one of said discs having a radially extending rib, and the inner face of the other disc having a plurality of radially extending grooves selectively receiving said rib for accurately positioning the blade receiving grooves of the two discs in different angularly adjusted positions relative to one another.

5. A square holder comprising two members, means rotatively connecting said members together in parallel relation to one another, said members having outer sides each provided with a groove to receive a blade of a square, means for adjustably securing said members together with said grooves and the blades received therein in different angularly adjusted positions relative to one another for positioning the other blades of the squares at different desired angles relative to one another wherein each of said members having a second blade receiving groove converging with the first mentioned groove thereof and disposed at a right angle thereto, said second grooves being of a different width than the first mentioned grooves for accommodating a square blade of a different width than the square blades accommodated in said first mentioned grooves.

6. A square holder as in claim 5, said grooves of each member having open ends opening outwardly of marginal portions of said member.

Claims

2. A square holder as in claim 1, said members each comprising a disc, one of said discs having a central opening, and a stud projecting perpendicularly from the center of the other disc and extending through and being turnably disposed in said opening and constituting said means for rotatively connecting the discs.