How to succeed as an inventor; showing the wonderful possibilites in the field of invention; the dangers to be avoided; the inventions needed; how to perfect and develop new ideas to the money making stage (1909)
Smith, Goodwin Brooke, 1870- [from old catalog] · Philadelphia, Inventors and investors corporation · leaf 75
r a, *im^M F( LffJ^j % ^r1 75 … 69. A hydrostatic press. Water forced by thepump through the small pipe into the ramcylinder and under the solid ram forces the latter«ip. The amount of force exerted on the rambears to the pressure on the plunger the sameratio as the area of the ramdoes to the area of theplunger Thus, if the area…
Inventions
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