US Patent: 1,778,492 - Quick-acting vise


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US Patent: 1,778,492

Quick-acting vise

Patentee:

Ambrose Everts Greene (exact or similar names) - Berkeley, CA

USPTO Classifications:

269/180, 269/181

Tool Categories:

work holding : vises : metalworking machine vises

Assignees:

None

Manufacturer:

Cardinal Machine Co. - Glendale, CA

Witnesses:

Unknown

Patent Dates:
Applied:	Feb. 03, 1919
Granted:	Oct. 14, 1930

Patent Pictures:

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

Description:

This quick-acting vise was designed for easy machining. It used cold-rolled steel bar for sliding and reinforcing parts as that material was relatively inexpensive and dimensionally accurate. A screw with undercut threads could be engaged or disengaged from an open-sided nut.

This patent was from one of a pair of patent applications. It appears that the other application was never granted. The inventor, Ambrose Everts Greene, appears to have been a professional inventor/engineer who specialized in designing novel engines. Click on his name to see his other patents.