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Early Canadian Patents


Patent XC-309: 1851-01-31, Improvement in engine pumps and fire engines

X Number Date Inventor City Title
XC-309 1851-01-31 John Hearle Galt, ON Canada Improvement in engine pumps and fire engines


XC patents are Canadian patents issued between 1824 and 1869. “The cylinder of the pump, or engine, is made in two parts, of copper or other metal. In the lower part is a bottom valve for admitting the water, and also a pipe for its passage into the air chamber. A conical leather with a plunger screwed to the piston rod is fixed between the flanges of the two parts of the cylinder, and made air tight by screw bolts or nails…”

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xc-patents/xc-309.txt · Last modified: 2019/05/25 00:16 (external edit)