Printing – Stenciling – Processes
Patent
1981-09-08
1984-08-07
Eickholt, E. H.
Printing
Stenciling
Processes
101DIG12, 101126, 33180R, 29720, B41M 112, B05C 1706
Patent
active
044636733
ABSTRACT:
A planar member is provided with locator surfaces arranged to cooperate with locator pins provided on the supporting surface of a registration apparatus. The planar member containing a pattern which is to be transferred is provided with a registration pattern. A holder supporting this member may be reciprocated to move this member toward or away from the first-mentioned planar member. Positioning means are provided for selectively moving the planar members relative to one another both orthogonally and rotationally. An alignment sheet containing locator surfaces identical to those of the first-mentioned planar member and a registration pattern complementary to that of the second mentioned planar member is positioned upon the supporting surface. The holder is moved downwardly to lower the second-mentioned planar member upon the supporting surface. The pins are retracted prior to such lowering. Electromagnetic radiation is then directed through the registration patterns of the alignment sheet and second planar member. The positioning means is manipulated until the complementary registration patterns are in registry, at which time substantially all of the radiation is blocked from passing through the combined sheet members. The holder is then raised, the alignment sheet is removed and the first-mentioned planar member is positioned upon the surface with its locator surfaces receiving the locator pins. The first and second planar members are then in precise registration, with no further alignment being required until a different pattern is to be printed.
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