Abstract: A motorcycle with enhanced control of a vehicle body is disclosed. The motorcycle includes: a body frame; a rear arm with an elongated hole formed therein; a rear wheel; a shaft; an adjustment mechanism for adjusting the front-to-rear position of the shaft; and a fastener member for fastening the shaft to the rear arm. The adjustment mechanism includes: a first cover member having a first insertion opening formed therein and facing one of the sides of the rear arm; and a second cover member having a second insertion opening formed therein and facing the other one of the sides of the rear arm.

Abstract: A slurry composition for mending a deteriorated surface of a concrete structure. The slurry includes an acrylic emulsion type elastic paint suspended by glass fibers cut from glass fiber strands. Prior to the formation of the slurry, the chopped glass fiber strands are immersed to a suitable solvent such as a toluene so that any size (spinning oil) applied to the filaments during their spinning operation are removed. The slurry is applied to the deteriorated surface of a concrete structure so that a reinforcing coating is created on the surface of the concrete structure.

Abstract: A method for producing a piston rod for securing a ball to each end of a rod through projection welding which comprises detachably retaining the ball to be secured in a ball holder for presenting the proximate rod end to the ball; the ball holder being constructed of electrically conductive material to provide a first electrode, with the rod holder being constructed of electrically conductive metal to provide a second electrode. The ball holder and rod holder are adapted for relative travel toward each other to effect a mutual zone of ball and rod contact. Electric current is then passed through the first and second electrodes for projection welding of the ball and rod through the zone of contact while the same are in an inert gas atmosphere. Then the now welded contact is cooled; and thereafter a second electric current is passed therethrough to temper the weld.

Abstract: A gas stream containing methanol is contacted with a catalyst including nickel and potassium supported on an alumina carrier, whereby the methanol is converted into hydrogen and carbon monoxide.