IMPROVED HAND STAMP.
Leonard Tilton, Brooklyn, E.D., N. Y.--This invention consists in
novel devices for giving positive rotation to the stamp heads after
the impressions are made, in combination with a reciprocating inking
pad, and in means for adjusting the throw of the inking pad with
respect to the printing faces of the stamp heads.
Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures · 第 103 / 213 题