US Patent: 163,025 - Improvement in emery-wheels


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US Patent: 163,025

Improvement in emery-wheels

Patentee:

Samuel G. Morrison (exact or similar names) - Williamsport, PA

USPTO Classifications:

451/541

Tool Categories:

industrial tools : grinding wheels

metalworking machines : grinders : sharpening machines : grinding wheels

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Hepburn McClure

H. T. Ames

Patent Dates:
Applied:	Aug. 18, 1874
Granted:	May 11, 1875

Patent Pictures:

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Description:

Construction of an emery wheel consisting of an iron disc with an applied paste consisting of emery, shellac and sulphur which is then baked until the sulphur melts. At least two subsequent improvements would be patented in the next year of so.