US Patent: 913,312 - Boring, Turning, and Facing Machine


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US Patent: 913,312

Boring, Turning, and Facing Machine

Patentee:

Ernest Burchard Sellew (exact or similar names) - Pawtucket, RI

USPTO Classifications:

144/46, 29/27B, 29/27R, 29/888.075, 82/138

Tool Categories:

metalworking machines : drilling and boring

metalworking machines : metal lathes

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

C. N. Greisbauer

William M. Gilker

Fred Newell Roberts

Patent Dates:
Applied:	Jul. 30, 1906
Granted:	Feb. 23, 1909

Patent Pictures:

USPTO (New site tip)
Google Patents
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Vintage Machinery entry for Sellew Machine Tool Co.

Description:

H. B. Willson & Co. - patent attorneys

My invention relates to improvements in metal working machines, and more particularly to "one for automatically dressing or finishing metal work-blanks. One object of the invention is to provide a machine for automatically and continuously turning, boring and facing, grooving, cutting off or otherwise acting upon a piece of metal to produce a finished article or articles from a rough, blank, the present embodiment of the invention being adapted for automatically making eccentrically-bored piston rings. Another object of the invention is to provide a machine of this character with an internal eccentric differential gear feed mechanism for reducing the speed between the driving and driven parts of the machine. A further object of the invention is to improve and simplify the construction of machines of this character and thereby render the same more efficient.