US Patent 1,291,259, Metal-Casting Machine [Ejector for a Fusion Stripcaster]
This is a 1919 United States patent specification by John S. Thompson for a metal-casting machine, a type-founding ejector for a fusion stripcaster, filed for printing-type production. The pictures are numbered mechanical drawings in plan and section, showing a mould, plunger, lever and ejector arms in several stages of operation. A designer might take from them the precise, schematic line-drawing style of early engineering patents, with labelled reference numerals and cutaway views.
![Picture 1 of 1 from US Patent 1,291,259, Metal-Casting Machine [Ejector for a Fusion Stripcaster] (1919), leaf 0](https://img.insideoutlibrary.com/img/200/ia-USPatent1291259ThompsonFusionStripcasting-0-0.webp)