CA Patent: 39,771 - Power hammer


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CA Patent: CA-39,771

Power hammer

Patentee:

William Hartill Law (exact or similar names) - Peterborough, ON Canada

USPTO Classifications:

Tool Categories:

metalworking machines : forging machines : drop hammers

Assignees:

None

Manufacturer:

Central Bridge & Engineering Co., Ltd. - Peterborough, ON Canada

Witnesses:

W. J. W. Throw

E. R. Case

Patent Dates:
Granted:	Aug. 10, 1892

Patent Pictures:

CIPO Data
Espacenet patent
Report data errors or omissions to steward Jeff Joslin
"Vintage Machinery" entry for Central Bridge & Engineering Co.

Description:

This power hammer provides adjustable force while using full stroke, and higher speed on the downstroke than on the upstroke. For the US version of this patent see 477,559.