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US Patent: 1,830,679
Drill spindle
Patentee:
Charles F. Schenck - Toledo, OH

USPTO Classifications:
384/611, 408/135, 464/162

Tool Categories:
metalworking machines : drilling and boring : drill presses
woodworking machines : wood drilling and boring : drill presses

Assignees:
Toledo General Manufacturing Co. - Toledo, OH

Manufacturer:
Toledo General Manufacturing Co. - Toledo, OH

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 22, 1929
Granted: Nov. 03, 1931

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Demco Machine Tool Co.
Description:
The assignee acquired drilling machine maker Demco Machine Tool Co. in the early 1930s; the spindle bearing arrangement in the patent was presumably used on the assignee's "Demco" brand drill presses.

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