Rubber stamp

Definition and stakes

Portrait of T. O'Conor Sloane T. O'Conor Sloane,  Rubber Hand Stamps and the Manipulation of Rubber (1890)

“ If the stamp is properly made it is surprising how much force may be used to insert it. If the edges of the brass swinging piece are not rounded there is danger of the composition being cut. The stamp in its brass frame is then swung back over the brass base, where it is secured by a catch. The stamp is now ready for use, as shown in the second figure of the cut.
It is imperative that no aqueous or glycerine ink be employed for continuous work with such stamps. Common printers’ ink is perfectly satisfactory, and the work may be nearly or quite as good as that executed by an india rubber stamp.
”
Source: Gutenberg

Joseph P. Bradley,  James v. Campbell — Opinion of the Court

“ The said cork, rubber, or other elastic substance, as aforesaid, will render the said stamp capable of an easy and rapid use, for there being a yielding of the same when the blow is given, the operator will not tire as soon by a constant or continued use of the same as though it were of solid metal, and the same will greatly aid in raising the entire stamp from the paper and postage-stamp when the impression shall have been given by the operator. ”
Source: Wikisource

Portrait of T. O'Conor Sloane T. O'Conor Sloane,  Rubber Hand Stamps and the Manipulation of Rubber (1890)

“ Grinding wheels, made in the above manner, can be worked at a speed of 2,000 revolutions per minute, and are extremely useful for the working of hardened steel or other obdurate materials.”
Etching on Metals and Glass.—India rubber stamps can be used for placing the ground upon knife blades and similar articles which are to be etched. The parts untouched by the stamp are attacked by the acid. In the case of glass, diamond ink (page 133) can be put on with a stamp. The acids for metal etching might be thickened with barium sulphate also and applied in the same way.
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Source: Gutenberg

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