Abstract: A golf driver has a head which includes an alpha-beta titanium alloy body and a crown formed of a beta titanium plate which is thinner than the body and brazed to the body. The face of the club head comprises a variable-thickness beta titanium faceplate that is plasma welded to the body. Heat generated during the plasma welding causes the thin border region of the faceplate to become even more flexible to enhance the spacing action of the faceplate. Two weights are attached at the toe and heel, respectively, of the body to minimize twisting of the body during an off-center hit. Two additional weights are disposed in the sole of the body in locations causing the center of gravity to be displaced toward the heel and the back side of the club head. A graphite shaft of the driver has at least four sections of different stiffness, defining three bending points, to increase the flex action of the shaft and enable an oversized driver to return to an address position at the moment of impact.

Abstract: A fairway wood head comprises a stainless steel body and a cup-shaped titanium alloy face member attached by silver-nickel brazing to the body. The face member is preferably of variable thickness, being thicker at it's center than at it's outer periphery. Weights are attached at the toe and heel, respectively, of the body, to resist twisting of the head during an off-center hit. Weights are attached in the sole of the body on opposite sides of a front-to-rear center line of the head to lower the center of gravity of the head. The head has a hosel which includes a stainless steel inner portion and a titanium alloy outer sleeve portion disposed around and attached to the inner portion.

Abstract: The present invention relates to an iron club head for an iron golf club. The iron club head 1 includes a front area 2 having a front wall for defining a striking face, and a rear area 3 connected to the front area 2. The rear area 3 is formed from at least a sole portion 32, a toe portion 33 and a top blade portion 34. The front area has a rib 23 extending from the outer peripheral edge of the front wall toward the rear area at portions thereof corresponding to at least the sole portion, the toe portion and the top blade portion of the rear area. The rear area is joined to the front area at the end surface of the rib.

Abstract: A material is provided for a polarizable electrode. The material comprises a porous carbon material of activated carbon, activated carbon fibers, carbon fibers or powdery carbon as a raw material, wherein the total amount of acid groups of said porous carbon materials is 0.45 to 4.0 .mu.eq/m.sup.2 based on the BET surface area of said carbon material. The material is produced by subjecting the porous carbon raw material to dry oxidation treatment in an oxygen atmosphere whereby the total amount of acid groups introduced into said porous carbon material is 0.45 to 4.0 .mu.eq/m.sup.2 based on the BET surface area of said material.

Abstract: An electrode for a flow-through type electrolytic cell which comprises:a frame spacer formed with a plate made of an insulating material and textile fabric made of carbon fibers disposed in the inner space of the spacer;said spacer and said textile fabric being held between a membrane and a collector plate so that an reactant flows through the inside the texture of the above textile fabric in one direction or in the reverse direction;said textile fabric being composed of thicker yarns of not finer than 5 metric counts and yarns finer than said thicker yarns which are disposed so as to cross said thicker yarns; andsaid textile fabric being fixed so that the thicker yarns are substantially in parallel with the flow direction of an aqueous solution of an reactant.

Abstract: A coating method and apparatus in which a coating composition is applied from a hopper to a web continuously travelling on a backing roller. The backing roller is rapidly moved by a pneumatic mechanism relative to the hopper between positions at which the composition can and cannot be applied to the travelling web in order to avoid thick coating at a leading portion or at a spliced portion of the web.

Abstract: In a metal-halogen secondary battery a sheet-shaped article containing porous carbon fibers is joined to the surface of the positive electrode.

Abstract: An electrode for an flowcell comprising electrode material made of carbon fiber having average <002> spacing of quasi-graphite crystalline structure of not more than 3.70 .ANG., and the average C-axis size of crystallite of not less than 9.0 .ANG. and at least 3 % by mole of oxygen atom bound to the fiber surface based on carbon atom, whereby the electrode has remarkable high electrical conductivity, current efficiency handling characteristics and hydrodynamic characteristics, and is adapted to flowcell.