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Patents for Frank Pearn
Patents 1 - 9 of 9
First set of recordsLast set of records
NumberDatePatenteeTitleType
504,742Sep. 12, 1893F. Pearn, W.A. PearnMachine for Boring Cylinders and Turning the Flanges Thereof
GB-189,322,207Oct. 20, 1894F. Pearn, S. Pearn, T. AddymanImprovements in or applicable to steam or other pumpssteam pumping engines
GB-189,416,996Aug. 24, 1895A.E. Seaton, F. PearnImprovements in filters or strainers, more particularly applicable for filtering or straining boiler feed water and lubricants in use, and in arrangements connected therewithstationary boilers
GB-189,625,037Oct. 16, 1897F. Pearn, E.G. Wrigley, W.A. PearnImprovements in tools or machines for facing, turning, boring and otherwise cutting flanges on castings and for operating upon other articleshorizontal boring mills
GB-190,511,870Mar. 01, 1906W.A. Pearn, F. PearnImprovements in connection with machine tools for milling, facing, and cutting metalsmetal lathes
GB-190,511,871Mar. 29, 1906F. Pearn, S. PearnImprovements in connection with direct acting steam pumpssteam pumping engines
GB-190,714,922May 21, 1908W.A. Pearn, F. PearnImprovements in machines for milling, facing, and other metal cutting operationsmetal lathes
941,269Nov. 23, 1909W.A. Pearn, F. PearnMachine for milling, facing, and other metal-cutting operationsmetal lathes
GB-191,219,159Apr. 17, 1913W.A. Pearn, F. PearnImprovements in boring, facing, and like machinesmetal lathes
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