Rubber hand stamps and the manipulation of rubber

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1900 Excerpt: ...made is attached to a wooden handle by common glue or by one of the rubber cements given in chapter XVI. CHAPTER VI. INDIA RUBBER TYPE MAKING. India rubber type are often used to set up different inscriptions in wooden handles, or different date figures in rubber stands. The latter are in such cases made with slots or recesses to receive them. Rubber type are much shorter than regular type, and as a rule are larger in the body in proportion to the face of the letter. Where only a few are required the following process is the simplest way of making them from mixed rubber sheet. The type which are to be copied are set up on a level base or imposing stone, and quads or spaces are put between them. High quads and spaces should be used; otherwise they should be vmshed up until even with the shoulders of the type. After oiling the faces a matrix is produced exactly as described for stamps. Before it has set quite hard the plaster or cement is cut off so that it will just fit within a little "flask" or frame. The latter may be made of tin or wood and may be rectangular or circular, provided it is large enough to include within its area the full working face of the matrix. It should be about half an inch or five-eighths of an inch deep. Its object is to prevent the softened india rubber from spreading, so as to secure the requisite height of the type produced. A piece of wood or metal is cut so as to fit closely within this frame like a plunger. It is provided with shoulders or cross pieces, so as to limit the depth to which it can be inserted. It will be seen that when matrix, flask, and plunger are all put together a complete mould for a block of type is India Rubber Type Mould. produced, as shown in the illustration, the matrix with its plate forming t...