US Patent 1,133,198, Type-Casting Machine [Matrix Carrier]
This is a 1915 US patent specification for a type-casting machine, filed by John S. Thompson and granted on March 23, 1915, for use in typefounding and sorts casting. The two drawing sheets show the machine's mechanical parts in elevation, section and detail views, with reference numerals and lettered labels. A designer could take from them the plain, diagrammatic linework of early twentieth-century engineering drawings and the way figure labels and signatures are set around the sheet.
![Picture 1 of 2 from US Patent 1,133,198, Type-Casting Machine [Matrix Carrier] (1915), leaf 0](https://img.insideoutlibrary.com/img/200/ia-USPatent1133198ThompsonTypeCastingMachine-0-0.webp)
![Picture 2 of 2 from US Patent 1,133,198, Type-Casting Machine [Matrix Carrier] (1915), leaf 2](https://img.insideoutlibrary.com/img/200/ia-USPatent1133198ThompsonTypeCastingMachine-2-0.webp)