Work holders – Plural holders to hold workpieces relative to each other – Workpieces parallel to each other
Patent
1977-06-13
1978-02-21
Watson, Robert C.
Work holders
Plural holders to hold workpieces relative to each other
Workpieces parallel to each other
118500, 269243, 269275, 269309, 269321W, B25B 110
Patent
active
040753026
ABSTRACT:
The invention is directed to an apparatus for gripping and holding a plurality of relatively small flat chips, such as electron microscope grids, by the edges thereof. An elevated support member is provided, the support member having a top surface which defines a table and having an aperture therein. A support flange extends inwardly from the aperture a predetermined distance below the table surface. A gripping assembly is removably mountable in the aperture in the support member. The gripping assembly includes a first gripping member having a periphery corresponding to the contour of the aperture and having a thickness at its periphery which corresponds to the predetermined distance. A second gripping member opposes the first gripping member. At least a portion of the periphery of the second gripping member has a contour that corresponds to the periphery of the first gripping member. A resilient spacing means is disposed between the first and second gripping members and is operative to normally bias the peripheries of the gripping members slightly apart. Means are provided for temporarily squeezing the gripping members together. In operation, the gripping assembly is mounted in the support member and seated on the flange. Chips placed on the table surface can be manually moved to positions where their edges are between the spaced peripheries of the gripping members, whereupon activation of the squeezing means causes gripping and holding of the chip edges by the gripping assembly.
REFERENCES:
patent: 1085871 (1914-02-01), Mendelssohn
patent: 3312460 (1967-04-01), Kaufman
Brady John K.
Noyes Robert
Novack Martin
University of Illinois Foundation
Watson Robert C.
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