Abstract: A work vehicle includes an engine driven by gas fuel sealed inside a cassette gas cylinder. The cassette gas cylinder is installed in a cylinder mount. The cylinder mount comprises a mouthpiece support for supporting a mouthpiece of the cassette gas cylinder, and a shutter member swingable about a support shaft provided to the cylinder mount, for opening and closing an opening of the mouthpiece support from above the mouthpiece support.

Abstract: A small-sized tiller includes a stand unit configured to solely support the tiller in a self-standing state. The stand unit has a pole portion removably mountable to a resistance-bar attachment portion of the body frame when a resistance bar has been removed from the resistance-bar attachment portion.

Abstract: A gas-engine-powered handheld working machine has a working unit driven by a engine capable of running on a gas fuel supplied from a gas cartridge. The gas cartridge is arranged such that when the handheld working machine is disposed in a normal rest position where the handheld working machine is placed on a horizontal plane with a bottom surface of a machine body lying flat on the horizontal plane, the gas cartridge is disposed in a substantially vertical position with a discharge nozzle directed downwards while a central axis of the gas cartridge extends substantially perpendicular to the horizontal plane.

Abstract: A work vehicle includes an engine driven by gas fuel sealed inside a cassette gas cylinder. The cassette gas cylinder is installed in a cylinder mount. The cylinder mount comprises a mouthpiece support for supporting a mouthpiece of the cassette gas cylinder, and a shutter member swingable about a support shaft provided to the cylinder mount, for opening and closing an opening of the mouthpiece support from above the mouthpiece support.

Abstract: A small-sized tiller includes a stand unit configured to solely support the tiller in a self-standing state. The stand unit has a pole portion removably mountable to a resistance-bar attachment portion of the body frame when a resistance bar has been removed from the resistance-bar attachment portion.

Abstract: A cantilever for a pickup cartridge comprising a base in the form of a solid rod or a pipe coated with a layer of a substance exhibiting a high modulus of elasticity ratio higher than 5000 Kg/mm.sup.2. The substance is for example boron or a boride.

Abstract: A cantilever for a pickup cartridge comprising a base in the form of a solid rod or a pipe coated with a layer of a substance exhibiting a high modulus of elasticity ratio higher than 5000 Kg/mm.sup.2. The substance is for example boron or a boride. Described also is a process for manufacture of cantilevers wherein low pressure chemical vapor deposition or plasma chemical vapor deposition is used to cause the reaction between boron trichloride (BCl.sub.3) and hydrogen (H.sub.2) gases, thereby depositing boron or a boride on a base.

Abstract: A power source system for vehicles includes a transistor relay and a first triac to vary the amount of DC delivered to a field winding of a generator through a second triac, whereby stable AC and DC currents can independently be obtained.