Throttle control for explosion motors, intended particularly for power saws

Abstract From the Canadian patent

Abstract of the disclosure Disclosed is a throttle control mechanism for an explosion motor which mechanism comprises a first device controlling the gas flow through the carburetor of the motor and a second device adapted to close a portion of the gas channel when the motor is started in its cold state, both of said devices being equipped with means adapted to cooperate mechanically to retain the second device in starting position until the said first device is manually operated whereupon the said second device will automatically return to its alternative position. This control mechanism is particularly suited for power saws which equipped with the said mechanism will be easier to handle …