Abstract: An extrusion die for adhering a tape on a rubber article which is extruded is composed of a die base fixed to an outlet port of an extrusion head to form a nozzle for allowing the article to extrude, a tape supply member connected with the die base which is oriented at adjacent a first surface of the article to partially supply the tape toward the first surface for allowing to mate the both so as to form a lamination, and a pressurizing member movably connected with the die base oriented at adjacent a second surface of the article to pressurize the article toward the tape for adhering the both. The pressurizing member is slidably reciprocated with respect to the direction of the article extruded to keep a distance from the article when the tape is not supplied thereto.

Abstract: A die for a profile extrusion for partly varying the profile of articles during a molding operation is provided. The die comprises a stationary die assembly and movable die assembly slidable on a surface thereof. Each die assembly includes an outlet port for defining a part of products. The stationary die further includes an opening functioning as a third outlet port. The third outlet port may vary its opening shape according to the sliding of the movable die on a surface of the stationary die during an extrusion molding operation with the result that the width of a connecting portion between the parts formed by the outlet port of the movable and the stationary die is varied. It will be noted that an article may be produced which has variably sized portions.

Abstract: A vibration proofing support structure for engines, capable of preventing the vibrations of an engine from being transmitted to the main frames on which the engine is supported, and improving the twisting strength of the main frames, consisting of left and right main frames provided on both sides of an engine, a connecting frame connecting the left and right main frames together and fixed to the lower surfaces of the front portions of the main frames, rotatable shaft provided at the intermediate portion of the connecting frame and fixing a front axle pivotably thereto, a front lower vibration proofing member provided on the portion of the connecting frame which is above the rotatable shaft, vibration restricting members provided in positions above and substantially crossing the front lower vibration proofing member and above the left and right main frames with clearances left between the restricting members and said main frames and left and right rear vibration proofing members via which the left and right re

Abstract: The invention provides a novel composition useful as a heat-resistant coating material on the surface of a metal or ceramic article or as an adhesive agent for bonding metal articles, ceramic articles, or articles of a metal and a ceramic. The adhesive strength of the composition is so strong that no peeling takes place even after many repeated cycles of rapid heating and cooling. The composition comprises a refractory powder of an inorganic oxide, such as alumina and silica; a powdery inorganic compound having cation-exchangeability and a layered structure, such as mica; and an alkali metal silicate or aluminate as a binder. The maximum particle diameter of the powdery inorganic compound having a layered structure is important and relative to the average particle diameter of the refractory powder.

Abstract: Carbon in the form of graphite is commonly used in refractories for metallurgical purposes because of its ability to increase resistance to corrosion. However, if the graphite in the refractory becomes oxidized, it greatly loses this ability. For this reason, it is very important for a refractory to have good resistance to oxidation, but there are at present no refractories fully satisfactory from the standpoints of resistance to oxidation and hot strength.The present invention is a carbon-containing refractory having excellent resistance to oxidation and hot strength. These favorable properties are obtained by the addition in the refractory of both boron carbide and metal powder, the powder comprising at least one metal selected from Al, Si, Fe, and Ni.

Abstract: The invention provides a novel composition useful as a heat-resistant coating material for a metal or ceramic article surface. Also, the novel composition is useful as an adhesive agent for bonding metal articles, ceramic articles or articles of a metal and a ceramic. The adhesive strength of the composition is so strong that no peeling takes place even after many times of repeated cycles of rapid heating and quenching. The composition comprises a metal powder, such as iron, copper and silver; a powdery inorganic compound having cation-exchangeability and a layered structure, such as mica; and a binder of an alkali metal silicate or aluminate. The maximum particle diameter of the layered inorganic compound having a layered structure is important and relative to the average particle diameter of the metal powder.

Abstract: A graphite refractory article having a dense structure with a low porosity, which has a chemical composition consisting essentially of:100 wt. parts of natural flake graphite, as the carbonaceous raw material, comprising at least 70 wt. % flake graphite having a particle size within the range of from 0.1 to 3 mm and up to 30 wt. % flake graphite having a particle size of under 0.1 mm; from 4 to 10 wt. parts of powdery phenol resin as the binder; and, incidental impurities;said graphite refractory article being obtained by press-forming a dry mixture having said chemical composition under a forming pressure of from 700 to 2,000 kg/cm.sup.