US Patent: 147,403 - Improvement in steam-engines for rock-drills, &c.


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US Patent: 147,403

Improvement in steam-engines for rock-drills, &c.

Patentees:

Simon Ingersoll (exact or similar names) - New York, NY

Aroid H. Elliott (exact or similar names) - New York, NY

Henry C. Sergeant (exact or similar names) - New York, NY

George R. Cullingworth (exact or similar names) - New York, NY

USPTO Classifications:

91/343

Tool Categories:

specialty machines : mining apparatus

propulsion and energy : steam engines

Assignees:

None

Manufacturer:

Ingersoll Rock Drill Co. - New York, NY

Witnesses:

Isaac Sannenberg

H. Hinman

Joseph E. Boss

Patent Dates:
Applied:	Sep. 16, 1873
Granted:	Feb. 10, 1874

Patent Pictures:

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Vintage Machinery entry for Ingersoll-Rand Co.

Description:

Improvement to patent 115,478 "in the shape and arrangement of the tappet, in the manner of applying a cushion to the cylinder-heads, and in the manner of packing the rods operating the tappets."