Abstract: A exerciser includes a base having a hub for rotatably receiving a spindle which has a radially extended peripheral plate, a rotary member rotatably engaged onto the spindle, a unidirectional driving device having a frame engaged between the peripheral plate and the rotary member, and a pair of cranks coupled to the spindle for driving the rotary member unidirectionally with the driving device. The frame includes a bore for receiving the peripheral plate of the spindle, and having an inner diameter greater than the outer diameter of the spindle.

Abstract: A exerciser includes a base having a hub for rotatably receiving a spindle which has a radially extended peripheral plate, a rotary member rotatably engaged onto the spindle, a unidirectional driving device having a frame engaged between the peripheral plate and the rotary member, and a pair of cranks coupled to the spindle for driving the rotary member unidirectionally with the driving device. The frame includes a bore for receiving the peripheral plate of the spindle, and having an inner diameter greater than the outer diameter of the spindle.

Abstract: A structural improvement on a carburetor for motorcycles, and more particularly relating to a carburetor provided with an oil re-atomizing device intends to ensure an almost complete atomization of injected oil before delivery into a combustion chamber of an engine. Near the middle of a horizontally extended air passage of the carburetor is disposed a smoothly enlarged section having an increasingly expanded diameter so as to permit a re-atomizing device to be mounted to the end of the section. The re-atomizing device is made up of a cone-shaped head portion and a circular supporting bracket that are fixed together by a screw. Oil sucked into the air passage via a needle controlled oil supply passage is brought into direct collision against the round ended cone-shaped head portion of the re-atomizing device.