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US Patent: 440,125
Rotary Engine
Patentee:
Abner D. Baker (exact or similar names) - Swanton, Fulton County, OH

USPTO Classifications:
418/138, 418/151

Tool Categories:
propulsion and energy : steam apparatus : rotary steam engines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 17, 1890
Granted: Nov. 11, 1890

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for A.D. Baker Company
Description:
Claim:

In a rotary engine, a concentric counterbalanced piston-plate arranged to revolve in the cylindrical easing, in combination with the eccentrically-arranged rotary pistonhead having the guide-arms for said piston-plate, said guide-arms being connected with the rotary pistonhead by means of a roller-joint, as herein set forth.

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