US Patent: 2,452,709 - Lubricating System for Adjustable Multiple Spindle Drill Head


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US Patent: 2,452,709

Lubricating System for Adjustable Multiple Spindle Drill Head

Patentee:

Rolland B. Aiman (exact or similar names) - Pendleton, Madison County, IN

USPTO Classifications:

184/6.12, 408/117

Tool Categories:

metalworking machines : metalworking machine mechanisms : metalworking machine lubrication

metalworking machines : drilling and boring : multiple spindle drilling heads

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Apr. 17, 1944
Granted:	Nov. 02, 1948

Patent Pictures:

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Description:

Original application filed 15 Aug., 1942, now patent #2,349,240. Divided and this application filer 17 Apr., 1944.

Claim:

A multiple drill head comprising a body having a gear chamber therein adapted to receive a lubricant under pressure, a drive spindle journaled in the body, a plurality of shafts having lubricating passages therein, spur gears keyed respectively to the spindle and to the shafts in the chamber and operatively connecting the spindle with the shafts, a radial grease passage in the gears of the shafts communicating with the chamber, a check va1ve in each of said passages, a plurality of driven spindles having lubricating passages therein, and spur gears connecting the shafts with the respective driven spindles, said last-named gears having communicating radial passages and

also providing communication between the passages of the shafts and the passages of the driven spindles.