The little gold mine. Conklin's handy manual of the mechanical arts and house plans .. (1889)
Conklin, [George W.] [from old catalog] · Chicago, Laird & Lee · leaf 330
the economy is doubtful. This die may be composedof two cutting dies, or one cut-ting and one forming die, or, infact, any combination whichmay seem desirable. It is gen-erally used for cutting dies,such as washers, etc. Fig. 8shows the plan of one of thesedies designed to make a washer.You will…
Industrial arts · Workshop recipes · Architectural drawing
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