Abstract: A tow apparatus for moving an aircraft comprising a frame, a drive member, a contact wheel configured to engage with a nosewheel tire of an aircraft, a transmission portion, a shaft engageable with a nosewheel tire of an aircraft, and a torque arm rotatably supported by the frame. The transmission portion can be configured such that the drive wheels transfer and increase a rotational force produced by the drive member to the contact wheel. The shaft can be movable between a first position and a second position relative to the contact wheel so as to bring the contact wheel into contact with the nosewheel of the aircraft. The torque arm can substantially prevent the rotation of the tow apparatus relative to the nosewheel assembly of the aircraft when the torque arm is engaged with the nosewheel assembly of the aircraft. The drive member can have a portable power source.

Abstract: A tow apparatus for moving an aircraft comprising a frame, a drive member, a contact wheel configured to engage with a nosewheel tire of an aircraft, a transmission portion, a shaft engageable with a nosewheel tire of an aircraft, and a torque arm rotatably supported by the frame. The transmission portion can be configured such that the drive wheels transfer and increase a rotational force produced by the drive member to the contact wheel. The shaft can be movable between a first position and a second position relative to the contact wheel so as to bring the contact wheel into contact with the nosewheel of the aircraft. The torque arm can substantially prevent the rotation of the tow apparatus relative to the nosewheel assembly of the aircraft when the torque arm is engaged with the nosewheel assembly of the aircraft. The drive member can have a portable power source.

Abstract: A tow apparatus for moving an aircraft comprising a frame, a drive member, a contact wheel configured to engage with a nosewheel tire of an aircraft, a transmission portion, a shaft engageable with a nosewheel tire of an aircraft, and a torque arm rotatably supported by the frame. The transmission portion can be configured such that the drive wheels transfer and increase a rotational force produced by the drive member to the contact wheel. The shaft can be movable between a first position and a second position relative to the contact wheel so as to bring the contact wheel into contact with the nosewheel of the aircraft. The torque arm can substantially prevent the rotation of the tow apparatus relative to the nosewheel assembly of the aircraft when the torque arm is engaged with the nosewheel assembly of the aircraft. The drive member can have a portable power source.

Abstract: The including between the handlebars and the front wheel of a bicycle of a shock absorbing and energy damping apparatus to absorb shock that is incurred by the bicycle as the bicycle moves over uneven terrain. The shock absorbing and energy damping apparatus includes a piston which is axially movable within a fluid chamber. There is also included a spring arrangement within this chamber which also acts against the piston.

Abstract: A bearing assembly and method of installing such within an enclosing open walled chamber wherein the bearing assembly utilizes first and second spaced apart bearing units. The bearing units low frictionally rotationally support a crank. The inner races of the spaced apart bearing units are connected together through a sleeve which is located about the crank. Mounted on the outer race of each bearing assembly is an expanding ring assembly. Each expanding ring assembly can be moved into tight engagement with the wall of the chamber.

Abstract: A power transmitting device for a bicycle in the form of a crank which is mounted within a hub housing fixedly secured within the frame of a bicycle. A shaft is rotatably supported within the hub housing with a crank arm being attached to each end of the shaft through a spline connection. A sprocket wheel is mounted between one of the crank arms and the hub housing. The sprocket wheel is fixedly secured to this crank arm.