US Patent: 2,384,745 - Drill Spindle Driving Mechanism


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US Patent: 2,384,745

Drill Spindle Driving Mechanism

Patentee:

William G. Hoelscher (exact or similar names) - Cincinnati, Hamilton County, OH

USPTO Classifications:

74/842

Tool Categories:

metalworking machines : metalworking machine mechanisms : metalworking power transmission

metalworking machines : drilling and boring : drill presses : radial drill presses

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	May 28, 1943
Granted:	Sep. 11, 1945

Patent Pictures:

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Description:

Original application 28 July, 1939. Divided and this application 28 May, 1943.

Claim:

One of the principal objectives of the present invention has been to provide a radial drill head in which various parts of the feed transmission control and tripping mechanisms are readily accessible for replacement and repairs. The invention contemplates an assembly of feed transmission gearing and gear shifting devices which is an integral unit bodily removable from the head and contained within a bracket or frame which is mounted in the head.