US Patent: 937 - Machine for mortising timber


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US Patent: 937

Machine for mortising timber

Patentee:

Erastus M. Shaw (exact or similar names) - Baltimore, MD

USPTO Classifications:

144/75, 144/84

Tool Categories:

woodworking machines : joint making machines : mortising machines

woodworking machines : wood drilling and boring : mortising machines

Assignees:

John Gridley - Baltimore, MD

Manufacturer:

Not known to have been produced

Witnesses:

Benjamin Start

Thomas W. Bond

Patent Dates:
Granted:	Sep. 22, 1838

Patent Pictures:

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Description:

From "Journal of the Franklin Institute", summarizing this patent: "There are so many patented mortising machines, that nothing is left for new ones but to vary the modes of making the adjustments for holding the stuff, advancing it, and working the chisels; and these minor arrangements are rarely of sufficient importance to merit particular description. Such is the case in the present instance."