Sheet positioning means

Details Sheet positioning means Sheet positioning means

1978-10-13

1980-06-03

Corbin, John K.

Optics: measuring and testing

Sample, specimen, or standard holder or support

248206A, G01N 2128

Patent

active

042059151

ABSTRACT:
The present invention includes a holder bar which has two holes therein and into each of which is fitted a permanent magnet. Each permanent magnet is secured by a rod to a cap element and in between each cap element and the upper surface of the holder there is located a spring, to spring-load the associated magnet away from the bed upon which the holder is resting. The holder has a relatively straight edge and, in a preferred embodiment, has a stepped portion to form two substantially straight edges. A sheet of material such as a printed sheet is located on the bed in a particular position where it can be read by a scanner or cut or subjected to some interaction with a mechanism. The holder is brought in abutment with the sheet and the magnets are depressed to be magnetically secured to the bed and thus secure the holder. Thereafter, similar sheets can be readily aligned against the holder or guide. When the holder position needs to be changed, the magnets are disengaged magnetically and spring-loaded away from the bed so that the holder is easily moved to a new position.

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