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Scientific American, Vol. 32, No. 5 (1875) (1875)
leaf 3
ambers by means of a pressure pump, a separation of © KB. At the lower end of the tap, it will be observed, are four for four hours, subject toa gentle heat, after which the fire the fluid from the mud, slime, etc.; then taking place. The screw-cutting dies, ff ff, fitting into a correspon‘ling… … different thread. This tap has been made of 8 parts resin and 1 part wax, UNIVERSAL DIE TAP. found to be specially useful in the to which, when well melted together, cutting of threads in steel tyres of locomotive and carriage 4 parts plaster of Paris are added. Use while hot. forcing in of fluid,…Internet Archive · Public domain (published before 1931). Free to use for anything.
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