Supports – Machinery support – Movable machine
Patent
1980-12-29
1984-02-28
Foss, J. Franklin
Supports
Machinery support
Movable machine
2481884, F16M 100
Patent
active
044338244
ABSTRACT:
Alignment and adjustable support structure for video projector is disclosed. The support structure includes the base plate 16 and at least three apertures for receiving three jack screws 22, 24 and 26. The jack screws have a length greater than the selected thickness of the base plate such that the base plate can be adjusted with respect to a post plate 28. Each of the jack screws includes an aperture 72 therethrough along its longitudinal axis. Post plate 28 includes at least three apertures such as aperture 68 for receiving a fastening means 70 which extends through aperture 68 and through aperture 72 of jack screw 26. Fastening means 70 is suitable for securing the post plate 28 in a selected position with respect to base plate 16 as is determined by the allowable motion of jack screw 26. A rolling plate 30 includes a top surface for receiving the bottom surface of post plate 38. The bottom surface of rolling plate 30 includes guideways 94 and 98 suitable for receiving a pair of parallel guides 96 and 100 such that the combination roller plate 30, post plate 28 and base plate 16 may be moved in a desired direction. There also is included a pin 102 for securing roller plate 30 to post plate 28.
REFERENCES:
patent: 1211352 (1917-01-01), Rathburn
patent: 3356324 (1967-12-01), Attermeyer
patent: 3361410 (1968-01-01), Messer
patent: 3705377 (1972-12-01), Hansen
patent: 3971537 (1976-07-01), Winkle
patent: 4185913 (1980-01-01), Ammann
Clarkson Douglas M.
Foss J. Franklin
Rothenberg Jeff
The Singer Company
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