US Patent: 324,759 - Drilling-machine


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US Patent: 324,759

Drilling-machine

Patentee:

Sterling Elliott (exact or similar names) - Watertown, MA

USPTO Classifications:

144/92, 408/90, 464/169

Tool Categories:

metalworking machines : drilling and boring : drill presses

woodworking machines : wood drilling and boring : drill presses

Assignees:

None

Manufacturer:

Sterling Elliott - Newton, MA

Witnesses:

G. W. Gregory

W. H. Sigston

Patent Dates:
Applied:	Jul. 07, 1884
Granted:	Aug. 18, 1885

Patent Pictures:

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Vintage Machinery entry for Sterling Elliott

Description:

"In drill-presses as heretofore constructed the wear of the spindle, both in its rotary and longitudinal movements, has been upon the same bearings, which quickly wears the said bearings, and also causes the strain of the driving-belt to interfere with the longitudinal movement of the spindle. In my invention the cone has sleeve-like extensions which enter bearings, and the spindle takes independent bearings in said sleeves."