A rotating direction change device for a microtome includes: a first shaft arranged in a first fixed position; a first gear wheel non-rotatably mounted to the first shaft; a second shaft movable in a first direction; a second gear wheel non-rotatably mounted to the second shaft; a third shaft movable in a second direction; a third gear wheel non-rotatably mounted to the third shaft; and a first connection part connecting the second shaft and the third shaft such that the second gear wheel is constantly meshed with the third gear wheel, in which the second gear wheel can be driven by the first gear wheel directly or indirectly. Hence, the rotating direction change device has advantages of simple structure and low friction.

A control system for a transmission reverser, which includes an output shaft, an output gear, a reverse gear, a forward clutch, an input power clutch, a first reverse disconnect device, and a second reverse disconnect device, has one or more controllers with processing and memory architecture configured to execute control logic to control the transmission reverser in a start-up mode, a forward mode and a reverse mode. In the start-up mode, the one or more controllers command the input power clutch and the first reverse disconnect device to simultaneously engage momentarily to apply an engagement torque to the second reverse disconnect device.

A transmission includes an input shaft that couples to a prime mover, twin countershafts and a main shaft having gears coupled thereon, an output shaft that selectively provides a torque output to a driveline, a first shift actuator that selectively couples the input shaft to the main shaft. The transmission includes a second shift actuator that couples the main shaft to the output shaft with a selected reduction ratio, and a controller including a vehicle state circuit that interprets at least one vehicle operating condition, and a neutral enforcement circuit that provides a first neutral command to the first shift actuator and a second neutral command to the second shift actuator, in response to the at least one vehicle operating condition indicating that vehicle motion is not intended.

A control system for a transmission reverser, which includes an output shaft, an output gear, a reverse gear, a forward clutch, an input power clutch, a first reverse disconnect device, and a second reverse disconnect device, has one or more controllers with processing and memory architecture configured to execute control logic to control the transmission reverser in a start-up mode, a forward mode and a reverse mode. In the start-up mode, the one or more controllers command the input power clutch and the first reverse disconnect device to simultaneously engage momentarily to apply an engagement torque to the second reverse disconnect device.

A control system for a transmission reverser having an output gear, a forward disconnect device, a first reverse disconnect device, and a second reverse disconnect device includes one or more controllers with processing and memory architecture configured to execute control logic to control the transmission reverser in a forward mode and a reverse mode. In the forward mode, the one or more controllers command the first reverse disconnect device to disengage and the forward disconnect device to engage to rotate the output gear in a forward direction. In the reverse mode, the one or more controllers command the first reverse disconnect device to engage and the second reverse disconnect device to engage to rotate the output gear in a reverse direction.

A marine drive includes an output gear including a beveled gear and a hub. A propeller shaft extends through the hub. A first bearing and an adjacent second bearing are located on the hub and support rotation of the output gear. The first and second bearings have inner races and outer races. An inner spacer is located on the hub and sandwiched between the respective inner races of the first and second bearings. An outer spacer is sandwiched between the respective outer races of the first and second bearings. A bearing carrier surrounds the propeller shaft and holds the first and second bearings therein by way of a press fit. The inner and outer spacers and the bearing carrier are dimensionally sized to provide a dimensional preload on the first and second bearings to maintain the output gear in alignment with the propeller shaft during operation of the marine drive.

The device embodied in the present invention utilizes the lateral rotation produced by a motor, which may be an internal combustion engine or an electrical motor. The lateral rotation is outputted directed unto the main crankshaft of an engine. A main pulley is mounted onto said main shaft and rotates with the same revolution rate as the motor, or at a reduced revolution rate, depending on the diameter of the main pulley and whether additional steps and hears are utilized to reduce or step down the rotary forces.

A marine drive includes an internal combustion engine that drives a propulsor into rotation to effect a thrust, and a transmission that shifts amongst a forward gear for a forward thrust, a reverse gear for a reverse thrust, and a neutral state for a zero thrust. The marine drive further includes a shift rod rotatable about its own axis to shift the transmission amongst forward, reverse, and neutral, and an actuator. The actuator includes an actuator motor that rotates an output shaft and a gear shaft that effectuates rotation of a shift rod. The output shaft is connected to a gear shaft through a first gearset such that rotation of the output shaft causes the rotation of the gear shaft, and the gear shaft is connected to the shift rod through a planetary gearset such that rotation of the gear shaft causes the rotation of the shift rod.

A multi-speed transmission includes a shaft member, an idler gear connected to the shaft member, an intermediate lever having a first movement and a second movement, the intermediate lever selectively engaging with the shaft member during the first movement and remaining engaged with the shaft member during the second movement, and a synchronizer assembly that is selectively engaged by the intermediate lever during the first movement of the intermediate lever, the synchronizer assembly remaining engaged during an initial stage of the second movement of the intermediate lever and becoming unengaged during a final stage of the second movement of the intermediate lever, the idler gear being fully engaged to achieve a reverse gear ratio during the final stage of the second movement of the intermediate lever.

A motorcycle wheel attachment or replacement of the existing drive pulley used on the rear rubber cushioned wheel of motorcycles and trikes. The attachment or replacement contains an apparatus that allows the operator of the motorcycle or trike to ride the motorcycle or trike in forward or reverse drive using a control linkage or electrical switch.