US Patent: 2,242,510 - Adjustable countersink structure


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US Patent: 2,242,510

Adjustable countersink structure

Patentee:

Stuart A. Cogsdill (exact or similar names) - Detroit, MI

USPTO Classifications:

408/112

Tool Categories:

metalworking machines : drilling and boring : drill bits : metalworking countersinks

woodworking tools : hand drills : drill bits : countersinks

Assignees:

Cogsdill Twist Drill Co. - Detroit, MI

Manufacturer:

Cogsdill Twist Drill Co. - Detroit, MI

Witnesses:

Unknown

Patent Dates:
Applied:	Aug. 22, 1940
Granted:	May 20, 1941

Patent Pictures:

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Description:

This countersink provides adjustable depth control. An example is seen marked with this patent number plus patent 2,308,055 and British patent GB-55,411.