Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1988-03-18
1989-08-15
Rosenbaum, Mark
Metal working
Method of mechanical manufacture
Assembling or joining
29469, B23P 1100
Patent
active
048561720
ABSTRACT:
A method is disclosed for the strain-free mounting of a component, such as a mirror, in a manner that allows differential thermal expansion or contraction to take place without distortion of the component. The mounting method makes use of a linear bearing that is rigid in all directions except one. Such a linear bearing is used at two or more points of support on the circumference of a mounting circle or circles. Relative motion in the linear bearings occurs along a line which is an extension of a radius of the mounting circle. The linear bearings each contain two sets of opposed rolamite mechanisms moving in parallel directions in the perpendicular arms of a "Y"-shaped frame. One of the two cylinders in each of the four rolamite clusters in annular and accepts a roller-bearing mounted shaft, and the four shafts are then rigidly attached to a second frame that rides within the first frame; the rolamite bearing motion occurring between the "Y"-shaped first frame and the second frame, the component being mounted on either frame.
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Ahmed Nazeer
Tomlinson Roger R.
Chin Frances
Hughes Aircraft Company
Karambelas A. W.
Powell K. J.
Rosenbaum Mark
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