Photographic Glass-Plate Registration Fixture
Original Publication Date: 1983-Dec-01
Included in the Prior Art Database: 2005-Feb-08
Frame 10 holds four glass plates each in an opening 12. The glass plates 14 rest against the bottom of the frame 10. Bezel 16 fits over the glass 14 and contains a lever-actuated latch 18 that clips to frame 10 to exert pressure on the glass plate through felt 20 and thereby clamp the glass plate against the frame 10. When the frame is to be exposed, it is turned upside down so groove 22 rests on a support plate to form a channel through which vacuum is applied to clamp the frame to the support plate. Glass plate "X" axis registration for each unit to the frame index pins 17 is maintained with pin inserts 15 on the four "X" axis locating rails 19. Similarly, "Y" axis unit registration to the frame index pin 21 is achieved through four pin inserts in the "Y" rails 23.