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GB Patent: GB-189,504,309
Improvements in horizontal saw frames
John Kershaw - Hebden Bridge, county York, England
Robert Kershaw - Hebden Bridge, county York, England

USPTO Classifications:

Tool Categories:
woodworking machines : reciprocating saws : reciprocating sawmills
woodworking machines : sawmills : reciprocating sawmills


Kershaw Brothers - Hebden Bridge, county York, England


Patent Dates:
Applied: Feb. 28, 1895
Granted: Jan. 04, 1896

Patent Pictures:
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"Vintage Machinery" entry for Kershaw Brothers
"we construct our horizontal saw frames with a vertical driving shaft journaled on the cross slide, the crank being upon the vertical shaft and having a horizontal connecting rod to the saw frame, the crank of the vertical shaft is preferably inside the working frame but may be at the end of same or at one side. The crank shaft has a sliding key its whole length passing through the pulley and the shaft is elongated so that at each end it automatically or otherwise lowers to adapt itself to the timber as it is sawn."

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