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US Patent: 1,555,548
Breaker-point mechanism and method of operating the same
Patentees:
Phelps Brown (exact or similar names) - Springfield, MA
Harold H. Clark (exact or similar names) - Springfield, MA
Terrence G. Louis (exact or similar names) - Springfield, MA
Ira E. Hendrickson (exact or similar names) - Springfield, MA

USPTO Classifications:
200/19.2

Tool Categories:
propulsion and energy : internal combustion engines : ignition systems

Assignees:
Phelps Brown - Springfield, MA
Wico Electric Co. - Springfield, MA

Manufacturer:
Wico Electric Co. - Springfield, MA

Witnesses:
Unknown

Patent Dates:
Applied: Jun. 26, 1922
Granted: Sep. 29, 1925

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Witherbee Igniter Co.; Wico Electric Co.
Description:
This mechanism tackles the problem of sparking contact points fusing metal particles from one contact onto the other, which decreased contact surface and increases resistance, which leads to more sparking and the rapid deterioration of the points. This invention provides a "percussive blow" when the points are brought together in an attempt to peen the misplaced metal particles. The patents specification says that the force of the blow must be carefully judged to flatten the point surfaces without causes breakage or excessive wear.

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