US Patent: 661,291 - Sparking Igniter for Explosive-Engines


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US Patent: 661,291

Sparking Igniter for Explosive-Engines

Patentee:

Axel Johnson (exact or similar names) - Winchester, Middlesex County, MA

USPTO Classifications:

123/162, 123/163

Tool Categories:

propulsion and energy : internal combustion engines : oil engines : ignition apparatus

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Dates:
Applied:	Jan. 31, 1900
Granted:	Nov. 06, 1900

Patent Pictures:

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Description:

Claim:

In an explosive-engine, in combination, the cylinder and piston, and firing or sparking devices comprising contact-pieces forming the terminals of opposite polarity of a normally broken electric circuit, one of the said contact-pieces being mounted pivotally on the piston, the plunger- rod acting by its head against the said pivoted contact-piece, and a spring to force the said plunger-rod lengthwise to cause it to act against the pivoted contact-piece to hold the latter in normal position on its pivot, the said piston having a chamber or bore within which the said plunger-rod and spring are received and in which the spring is shielded from the heat and gases.