Microform viewer
OwnerGeorge Davies, Hedda Wertheimerinventors
Life of this patent
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Abstract
This invention is a portable hand operated viewer for micro-fiches and other material with writing too small to be read by the unaided eye. A translucent table has a clamp for the reading matter and that carries an adjustable binocular lens unit, with a head piece for correct location and for movement to scan the table. It is cheap and can be assembled by a child and is suitable for use in schools.
Claims9
A viewer comprising a base, a table pivotally mounted on the base, clamp means for temporarily gripping matter to be viewed on the table, a lens unit including a lens for viewing the matter mounted on the clamp means, the lens being adjustably positioned on the lens unit, and the lens unit being laterally adjustable in relation to the clamp means, and a head rest extending from the lens unit above the lens towards the user including means for enabling the user to move the lens unit laterally by pressure of his head on the head rest.
Dependencies are inferred from the claim text.