Abstract: An auxiliary circuit breaker having an auxiliary cross bar which is supported by a cover so that the auxiliary cross bar is actuated by a center cross bar to move a movable contact from a closed state to an open state. The operation of the auxiliary cross bar results in delayed operation of the operation of a normally closed circuit to provide a reliable contact operation of the main circuit breaker.

Abstract: An automotive internal combustion engine comprises a cylinder block having at its bottom section a plurality of main bearing supporting sections, a bearing beam structure secured to the cylinder block bottom section and including a plurality of main bearing caps each cooperating with a main bearing supporting section of the cylinder block, and a beam section securely connecting the main bearing caps with each other, and a support arm disposed on an end portion of the bearing beam structure and rigidly connected to the lower section of a transmission bell housing, thereby effectively suppressing the angular displacement of the cylinder block relative to the transmission bell housing.

Abstract: An internal combustion engine comprises a cylinder block including a skirt section, and a plurality of bearing sections connected to the skirt section; and a bearing beam structure secured to the bottom part of the cylinder block and including a plurality of main bearing cap sections each associating with each cylinder block bearing section to rotatably support a crankshaft, first and second beam sections disposed to connect the main bearing cap sections with each other, and first and second side wall sections disposed to securely connect the bearing cap sections with each other respectively at their one of opposite side portions and at the other one of the opposite side portions, each side wall section being securely connected at its lower part with each beam section and the its top part with the lower part of the cylinder block skirt section, thereby greatly improving the rigidity of the entire bearing beam structure, thereby effectively suppressing noise emission from the cylinder block.

Abstract: A laminate is prepared, which comprises a base layer of a fibrous material mixed with a synthetic resin and its cross linking agent, a cover layer of unvulcanized rubber and an intermediate layer of thermoplastic resin. The laminate is shaped into a desired shape by the application of heat and pressure at such an elevated temperature as to cause the cross linking reaction of the synthetic resin in the base layer, the vulcanization reaction in the cover layer and a change of the thermoplastic resin into a soft and adhesive condition to take place simultaneously.

Abstract: A noise-shielding panel comprises a flat section spacedly disposed from the surface of an engine body and formed of a fibrous composite, and a contacting section integral with the flat section and formed of the same fibrous composite as in the flat section. The contacting section is in direct contact with the engine body surface and lower in density of the fibrous composite than the flat section, thereby facilitating production thereof and exhibiting a high noise-shielding effect.

Abstract: An internal combustion engine comprises a cylinder block having cylinder barrels and bearing sections, and a bearing beam structure including bearing cap sections each of which associates with each cylinder block bearing section so as to rotatably support the journal of a crankshaft, first and second upper beam sections disposed along the two upper opposite portions of each bearing cap section to securely connect the bearing cap sections with each other, and first and second lower beam sections disposed along the two lower opposite portions of each bearing cap section to securely connect the bearing cap sections with each other, thereby effectively reducing engine noise particularly due to the vibration of a skirt section of the cylinder block.

Abstract: An automotive internal combustion engine comprises a cylinder block having a plurality of cylinder bores and a plurality of bearing bulkheads, and a bearing beam structure secured to the bottom part of the cylinder block and including a plurality of main bearing cap sections each of which associates with each cylinder block bearing bulkhead to rotatably support the journal of a crankshaft, and two beam sections for securely connecting all the bearing cap sections, the two beam sections extending parallel with the axis of the crankshaft and being located at the opposite side portions, respectively, of each bearing cap section, thereby improving the strength of the main bearing cap sections and the cylinder block bearing bulkheads against the tortional and flexural vibrations to effectively suppress the vibrations of a cylinder block skirt section and an oil pan.

Abstract: A noise reducing cover for an internal combustion engine, comprising a layer formed of a material which is high in damping capacity, and metal fibers contained in the high damping capacity material, thereby effectively preventing engine noise emission, maintaining good heat conductivity therethrough.

Abstract: An internal combustion engine having a cylinder block, comprises a bearing support beam structure secured to the cylinder block and including a plurality of main bearing carrying sections which are made of aluminum allow and incorporate with the corresponding sections of the cylinder block to rotatably support a crankshaft, and a steel pipe securely disposed within and in a manner to pierce the main bearing carrying sections, thereby lightening the weight of the entire engine, increasing the flexural rigidity of the cylinder block.

Abstract: A noiseless cover such as an oil pan, front cover, cylinder head cover and the like for an engine comprises elastic bodies fixed to an engine body of the engine and resiliently abutting against a mid-portion of the cover, thereby preventing surface vibrations of the cover without any troublesome operation for mounting the cover and without any sealing problem.

Abstract: An engine of a motor vehicle is equipped with a sound-insulating cover which is secured to a portion of an engine proper to surround the engine proper. An oil pan filled with engine oil is hermetically connected to the bottom portion of the sound-insulating cover so that the oil pan is spaced apart from the skirt portion of a crankcase.

Abstract: A flat clamp plate is fastened to an instrument panel of a vehicle body. A clamp attachment with a top panel is fixed to a telescopically movable part of the steering column and is in slidable engagement with the clamp plate through a hook connection at the front and rear ends thereof. The clamp plate and the clamp attachment are fastened together by means of shear pins which are breakable under a predetermined shearing stress.

Abstract: A panel extends between and is anchored to the side walls of a vehicle occupant space to form a surface substantially juxtaposed to the knees of seated occupants. Four box-profiled crushable elements are laterally arranged and mounted on and along the elongate panel.

Abstract: A first annular member provided with at least two different shaped conductive spring arms is fixedly and coaxially connected to a rotatable member for rotatable movement therewith the two spring arms having different characteristic frequencies respectively. A second annular member provided with an annular conductive rail is connected to a relatively stationary member so as to be coaxially spaced apart from the first annular member. The free ends of the conductive spring arms are urged into sliding contact with the annular conductive rail.

Abstract: Roller bearings ensure electrical contact and smooth rotation between a rotatable member and a stationary member even during severe vibration.

Abstract: A stationary outer annular holder is concentrically positioned around and radially spaced apart from a rotatable annular conductive plate member. Curved conductive spring bands are supported on the holder so as to be urged into sliding contact with the annular conductive plate member. Electrical contact and smooth rotation between the holder and the annular conductive plate member are thus ensured even during severe vibration.

Abstract: The device for providing electric connection between a rotatable member and a stationary member has a doughnut-like housing of an insulating material and an annular and insulating base plate disposed in the housing coaxially and movably both in the circumferential and axial directions. Two annular contact plates are placed on a front face of the base plate, and two contact pins are held in the housing and urged always to stand on the contact plates, respectively, by means of compression springs. Both the housing and the base plate are locally shaped such that one of them can be fixed to the rotational member while the other can be engaged with the stationary member so as to be restrained from rotating together with the former.