Murray Corporation

Joseph P Deschamps

Doyle S Maxwell

Richard D Williams

John Burns

James F Peterson

Donald G Erickson

Lindell R Flynn

A rotary mower blade is formed with a notch at each end of the blade. Upwardly inclined vanes are provided on trailing edges of end portions of the blade adjacent the respective notches. Intermediate a central portion of the blade and the end portions, surfaces are formed extending downwardly from the leading to the trailing edges of the blade.

Rotary mower blade

A drive shaft rotated by a drive gear is coupled to an epicyclic gear arrangement which is rotatable as a unit about the drive shaft's longitudinal axis, as well as about its own axis. A driven gear is rotatably mounted drive shaft between the drive gear and the gear arrangement. Facing surfaces of the drive and driven gears are provided with annular concavities. A pivotally adjustable friction disk extends between, and in contact with, the concave surfaces. The opposite side of the driven gear is operatively connected to the gear arrangement. When the drive shaft is rotated, the gear arrangement is rotated about its own axis in response to drive shaft rotation and is rotated about the drive shaft's axis in accordance with the position of the friction disk. The speed and direction of the wheel-driving output are thus controlled.

Epicyclic transmission for zero turning radius vehicles

A choke and throttle control arrangement for a small engine includes a base plate to which a pair of levers are pivotally joined. One includes a governor spring arm connected to the engine's speed governor, and the other is provided with an arm which serves as a choke actuator. A spring interconnects the two levers to permit them to rotate in unison at low engine speed in response to operator actuation of a throttle control handle. An adjustable stop member is positioned to interrupt the rotation of the governor spring arm when a selected less-than-maximum engine speed is reached. Further throttle control handle advancement permits the choke actuating arm to move to the closed choke position. As the throttle control handle is moved towards a low speed setting, the lever containing the choke actuating arm returns to the position at which the selected less-than-maximum speed was reached. Once reaching that position, both levers move together under the influence of the interconnecting spring as the engine speed is reduced.

Dual arm choke and throttle control

A mechanism for controlling the direction and speed of an off-road vehicle having a frame, an operator seat, a steering wheel, an engine and a variable speed transmission coupled for driving at least one of a plurality of ground wheels. The mechanism comprises a floor plate carried by the vehicle for receiving the heel portion of an operator's foot, a pedal operatively connected to the variable speed transmission and pivotally mounted above the floor plate for movement between a forward zone for controlling the forward speed of the vehicle, a neutral zone wherein the vehicle is in neutral, and a reverse zone for controlling the reverse speed of the vehicle. The pedal has first and second portions generally inclined with respect to one another and each are adapted for engagement by a forward portion of the individual's foot so that engagement of the first portion with a predetermined amount of force moves the pedal into the forward zone of movement, and engagement with the second portion with a predetermined amount of force moves the pedal into the reverse zone of movement. The pedal is arranged relative to the floor plate in a manner which enables the individual to selectively access the first and second portions with the forward portion of the foot by pivoting the heel on the floor plate. The pedal has at least the second portion thereof disposed outboard of a side edge of the floor plate.

Growing community of inventors

Franklin, TN, United States of America

Joseph P Deschamps