Soap Manufacturing Machine.
Description:
Patent for a new and improved soap maker. This design consists in "[t]he charger, having outline-pipe, in combination with [the] compressor having within the same a steam-heated coil and a rotary mixer, a hydraulic pump connected to said compressor, pressure-gage, and safety-valve" (lines 24-29).
Date:
December 15, 1885
Creator:
Grant, William A.
Partner:
UNT Libraries Government Documents Department