US1517251A - Adjustable work-supporting stand - Google Patents

Description

I ATTORNEY.

F. P. SCHAAF ADJUSTABLE WORK SUPPORTING STAND Filed Nov. 12. 1923 Patented es. 2, 1924.

FRANK P. SCHAAF, OF CHANDLERVILLE, ILLINOIS.

ADJUSTABLE WORK-SUPPORTING STAND.

Appflication filed November 12, 1923.

To all whom it may concern: 7

Be it known that I, FRANK P. SOHAAF, a citizen of the United States, residing at Chandler-ville, in the county of Cass and State of Illinois, have invented new and useful Improvements in Adjustable VVork- Supporting Stands; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to a stand for supporting a piece of work upon which various operations are to be performed.

lllore particularly, the invention relates to an adjustable stand upon which to support an engine crank-case for repairs, such as welding operations and the like.

It is quite often necessary to weld various parts of a crank-case and in order to properly position the same in order to hold the flow of metal upon the place being treated some means must be employed for eX-peditious work other than merely propping the work in the usual insecure manner.

To the end that my invention may be understood I have provided the accompanying drawing wherein Figure 1 is an elevation of my support showing a crank-case supported thereon.

Figure 2 shows in perspective a part for holding one end of the crankcase.

Figure 3 is a longitudinal section of a securing means for a part of the device.

Figure is a plan of a securing means for another part of the device.

Figure a sectional elevation of a. clamping ar angen'ient.

Figure 6 is a side elevation of the parts shown in Figure 5, and

Figure 7 is a plan of portions of supporting legs, showing an upright or standard in horizontal position.

The numeral 1 design-ates a standard which preferably has detachable legs '2. The lower end of the standard is provided "with an enlargement 3 having sockets 4: at four places, as shown in the present instance, which. receive the upturned ends 5 of the legs, a flange 6 on each said leg supporting the standard. This, however, is merely a preferred construction. The upper extremity of the standard is provided preferably with an enlargement or head 7 having one of its faces radial teeth or serrations 8 which receive a similarly scr- Serial No. 674,155.

rated face of what I shall term an arm, 9, held adjustably on said standard through a securing device represented in the present instance by a bolt and a clamping 10 and 11 respectively.

The upper end of the arm 9 has pivoted thereto by means of a bolt 12, for example, a fitting consisting of a plate 13 having a pair of ears 1 1 through both of which extends a length of rod or pipe 15 supported at its middle and adapted to turn freely therein.

Secured to each end of the rod or pipe 15 in suitable manner is a cross arm 16 both of which carrythe work which is secured in place by set screws 17 for example. A semi-circular member 18 encircles at its extremities the said rod or pipe at opposite sides of the central support, the ears 14L, oneof said extremities receiving the rod or pipe in snug working manner. The bore of the other extremity, however, is much larger and receives into it a sleeve 19, Figure 3, having at one end a flange 20 to bear against one side of said extremity while the other end of the sleeve is threaded and receives an internally threaded portion of a clamping hand-wheel 21, said sleeve being secured to the rod or pipe 15 by means of a pin 22. A collar 23 is secured in similar manner to the rod or pipe outside the other extremity of the member 18.

It may now be seen that the rod or pipe, with the work thereon, may be turned axially within the member 18 by loosening the liai'id-wheel 21 and may be secured in any desired position by setting up said wheel since the latter clai'nps the extremity of the member 18 between it and the flange 20.

h l ounted upon the arm 9 is a strap 2! which is adapted to clamp the member 18 between it and said arm a threaded handle 25 and a bolt 26 serving for that purpose.

Particularly in oxyacetylene welding operations it is necessary to place that part of the work to be treated'in a level position and therefore the work must he carried in such. manner that it may be tilted in all directions in order to enable the workman to thus level any portion thereof. That this may be done, the arm 9 may be tilted upon the standard 1. as shown in Figure 1, as one of the possible positions, and there held. Again, the clamping means at 25, 26 permits the rod or pipe 15 to be tilted as shown in dot-ted lines in Figure 1, while the clamping ill) lll)

hand-wheel 21v of that figure admits of rotating the work about the axis of said rod or pipe. In this manner all points upon the work may be leveled and readily operated upon with a minimum of loss ottime in preparing therefor. l/Vhile I have described and shown a preferred construction of the stand and its parts it is not my intention to beconfined to such since various changes are possiblejas may be suggested as making for convenience and quickness of adjustment. 7

Due to the construction provided or equiv alents thereof the several parts, including the legs 2, maybe readily disassembled and packed in a small compass for easy transportation.

I claim: 7 1. A stand for supportmgthe crank case of an automobile including in its construction an arm,a fitting mounted to swivel on the same,;means'to fix thetwo relatively, a rod carried by said fittingadapted to turn within the same, a member adjustable on the arm, said rod extending therethrough, means to securetherod relative tothe member,means to secure the member with respect to the'arm, and a standard on which the said. arm isswiveled to swing in a plane disposed at right angles to the-axis ot the rod. V

2. A stand for supporting the c 'ank case of ail-automobileincluding in its constructionan arm, a fittinganounted to swivel thereon in a singleplane, means to fix the tworelatively, a rod carried bythe fitting to move with it and also adapted to turn axially therein, a member having a bearmg within which'the said rod is free to turn, means to fix't-he rod against axial movement, means to clamp the member to the arm'in adjusted positions, and a standard on which the arm is swiveled whereby to swing ina plane at right angles to the plane of movementot the said fitting.

3. A. standior supporting the crank case of an. automobile including in its construction an arm, a fitting mounted to swivel thereon in a single plane, means to fixthe two relatively, a rod carried by the fitting to move with it and also adapted to turn axially within it, a cross member at each end of the rodupon which to secure detachably the crank case, a member having a hearing within which the said rod is tree to turn, means to fix the rod against axial movement, means to clamp the member to the arm, in adjusted positions, and a stand ard on which the arm is swiveled whereby to swing in a plane at right angles to the plane of movement of the said fitting.

4:. A stand for supporting the crank case of an automobile including in its construction an arm, .a fitting mounted to swivel thereon in a single plane, means to lix the two relatively, a rod carried by the fitting to move with it and also adapted to turn axially within it, a member having :1 hear ing within which the rod is free to turn, means to prevent longitudinal shifting of the rod, means to fix the rod against axial movement, means to clamp the member to the arm in adjusted positions, and a standard on which the arm is swivelcd whereby to swing in a. plane at right angles to the plane of movement of the said fitting.

5. A stand for the purposes named including a standard, an arm mounted thereon adapted for adjustment to various positions. means to secure the arm with respect to the standard, a fitting swiveled on the arm adapted to swing to various positions, a rod mounted for axial movement in the fitting, a member encircling the rod, a clamping device at said member for securing the rod with respect thereto, and means to secure themember and arm relatively.

6. A stand for the purposes named including a standard, an arm pivoted thereon adapted for adjustment in a given plane, a fitting swiveled on the arm adapted tor movement in adiflerent plane, a member formed in an are described from the point of support of the fitting, a rod mounted in the fitting andextending through one end of the member and adapted to rock with respect to both, means to secure the rod with respect to the fitting and said member, and means to secure the latter with respect to the arm.

In testimony whereof I ailix my signatul'n in presence of two witnesses.

FRANK l. StllAAl \Vitnesses C. F. AoI-rAMInn, J. P. IIAYNES.

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