US Patent: 2,326,638 - Machine tool coolant system


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US Patent: 2,326,638

Machine tool coolant system

Patentees:

Harold J. Siekmann (exact or similar names) - Cincinnati, OH

William F. Groene (exact or similar names) - Cincinnati, OH

USPTO Classifications:

29/27R, 29/DIG.077, 29/DIG.093, 62/DIG.01, 82/117, 82/152, 82/900

Tool Categories:

trade specific : gunsmith

Assignees:

R. K. LeBlond Machine Tool Co. - Cincinnati, OH

Manufacturer:

R. K. LeBlond Machine Tool Co. - Cincinnati, OH

Witnesses:

Unknown

Patent Dates:
Applied:	Nov. 30, 1942
Granted:	Aug. 10, 1943

Patent Pictures:

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Vintage Machinery entry for R. K. LeBlond Machine Tool Co.

Description:

This cooling system was specifically intended for lathes used for simultaneously boring and turning gun barrels: turning the outside of the barrel requires low-pressure high-volume coolant, and boring the barrel requires high-pressure low-volume coolant.