Abstract: A portable engine has a fan cover fixed to a front surface of a crankcase to cover a fan and to guide upward a blown stream of air generated by the fan, and a cylinder cover disposed behind and in series with the fan cover to cover an engine cylinder and to guide the blown stream toward the engine cylinder. The portable engine has a partition plate formed integrally with said crankcase to cover a step formed between the fan cover and the cylinder cover, and an ignition coil is fixed to the partition plate. According to this arrangement, heat of the engine cylinder will not be directly transmitted to the ignition coil to cause deterioration of the function of the ignition coil. The engine cylinder has positioning pieces which are engaged with positioning holes formed on the crankcase to allow easy assembling and a correct positioning of the engine cylinder and the crankcase.

Abstract: The pivotally mounted throttle lever on a gasoline engine powered flexible line trimmer has a flexible arm portion which is linked to the engine's pivotally mounted carburetor throttle arm by an elongated cable structure. When the linkage structure is in a "short" portion of its lengthwise dimensional tolerance range the throttle lever stroke distance is greater than that required to move the throttle arm to its fully open, actuated limit position in which it is stopped by an abutment surface. The throttle lever, when the throttle arm has been moved to such limit position, thus still has an unused position of its total available stroke distance. When the lever is forcibly driven through this remaining stroke portion, the flexible connecting arm is resiliently bent relative to the balance of the throttle lever to thereby avoid undesirably high stress levels in the throttle lever, the linkage cable and the carburetor throttle arm.

Abstract: A thermal response type fluid fan coupling device which is constituted by a sealed chamber which is divided into an oil accumulating chamber and a torque transmission chamber, and which accommodates a driving disc, by a separating plate having an oil flow adjusting hole, in which a dam is provided in a circulated passage connecting the torque transmission chamber and the oil accumulating chamber, and a valve member for opening and closing the flow adjusting hole in accordance with change in ambient temperature is provided so as to control torque transmission from the driving side to the follower side by changing the effective oil contact area in a gap for transmitting torque between the driving disc and the case and the cover, wherein an idle oil accumulating chamber which is connected to an oil introducing gap which is connected to the torque transmission chamber is provided at the position outer than the dam in the radial direction, and oil introducing means for connecing the oil accummulating chamber and t

Abstract: Headband lamp apparatus includes a band portion, a lamp portion, a power supplying portion and a recharging portion. The band portion includes an adjustable elongated flexible band member. The lamp portion includes a lamp socket disposed on a free end of an adjustable linkage. A protective housing surrounding a lamp bulb has an adjustable lens located adjacent a free end of the housing. The power supplying portion includes a plurality of batteries mounted on the band member along the length thereof and spaced from the lamp portion. Each pair of the batteries is retained on the band member with a clip member. Electrical conductors along the length of the band member electrically connect the lamp portion with the batteries. The recharging portion includes a socket member disposed along the length of the band member remote from the lamp portion and connected electrically with the conductors.

Abstract: A reciprocating piston engine having a sealing system between the cylinder head and the cylinder liner, or the cylinder block, using a metal gasket. It is proposed to improve such a system in a manner that, while large manufacturing tolerances are permitted, i.e. tolerances on the dimensional design of the cooperating parts as well as on the cylinder head bolt torque, reliable gastight sealing of the combustion chamber is ensured at all times. This is essentially achieved in that a circumferential raised portion on the liner flange is the only part that projects beyond the top end (sealing face) of the cylinder block and is matched to the metal gasket in a manner that when the cylinder head is tightened down on the cylinder block, the cylinder head gasket is always stressed above the yield point, with the metal gasket having such a stress/strain characteristic that once the yield point is exceeded, the horizontal deformation range (i.e. where the compressive stress is constant) is as great as possible.

Abstract: A baton for a runner is provided that can be held in the hand or worn on a belt. The baton consists of a lightweight segmented cylinder having interchangable compartments for holding various items needed by the runner.

Abstract: A V type engine embodying an improved oil separator for its crankcase ventilation system. The oil separator is contained within the valley between the banks of cylinders and has a simplified but effective arrangement for achieving separation.

Abstract: A reduction gear axle apparatus includes a differential gearing assembly positioned for driving a pair of coaxially arranged driving axle shafts. The apparatus includes a rotary input shaft disposed for coupling with a prime mover having a power modulating device. A centrifugal speed control governor is fixed to the input shaft, and the governor is operatively connected to the power modulating device for control thereof as a function of axle shaft speed. In one preferred form, the governor comprises a pair of plates with a plurality of slide weights circumferentially spaced about the plates. One of the plates is fixed to the input shaft while the other is slideable thereon. At least one plate contains cam surfaces wherein as the weights are centrifugally urged outwardly of the input shaft axis, the slideable plate is axially moved away from the fixed plate.

Abstract: A self-adjusting fuel injection system includes a solenoid controlled fuel injection pump. A memory stores fuel injection information relating to the particular fuel delivery characteristics of the pump. A controller coupled to the memory and pump actuates the pump to provide a desired amount of fuel by correcting for the individual characteristics of the pump.

Abstract: The present invention provides an evaporative cooling system for an automotive engine or the like which system does not require a plurality of electromagnetic valves and conduits and which can control the boiling point to a level appropriate for the instant mode of engine operation.

Abstract: A light suitable to be mounted upon the wall of a building or a room thereof wherein the light contains an apparatus comprising a weighted object which will be displaced at the existence of an earthquake of a given, preset magnitude and upon being displaced will close a circuit activating an emergency light in such manner that occupants in the area may see the light and be guided by it. The light is battery activated and may be of the type which is continually charged by normal household current and may include a low drain test light to indicate battery condition.

Abstract: A wrist mounted flashlight has a sliding lens. The lens has a white light section and a red light section. The case of the flashlight contains batteries and electrical contacts. An arm is attached to the lens and extends into the case. Sliding the lens to either the red light or the white light position causes the arm to engage the electrical contact with the batteries and bulb to energize the light. The bulb in mounted at an inclination relative to the wrist contacting surface of the case. The bulb extends into a space between the batteries.

Abstract: A safety lighting device for a bicycle including a housing in which is located a self-contained light source which emits light through a lens; the housing also having a plate-like mounting apparatus wedged between pairs of overlapping spokes which allows the housing to be removably secured to the spokes, and further allows the light to be directed radially outwardly to permit ready visibility of the bike and rider while deflecting the light away from the eyes of the rider and any obstructions created by the wheel rim.

Abstract: A timer operated throttle closing device for drag racing vehicles. In particular, this throttle closing device automatically senses the initiation of the race and automatically closes the throttle after a predetermined period of time has elapsed, and after a second period of time has elapsed automatically releases the throttle closure device.

Abstract: An engine anti-knock control arrangement controls both the ignition timing system and an evaporative cooling system so that when the engine is operating in a predetermined engine speed and load zone and engine knock is detected, the cooling system is operated to reset the temperature to which the coolant (and therefore the engine) should be controlled, to a predetermined minimum value and the ignition timing incrementally retarded until the knocking phenomenon terminates. While the temperature is dropping and knocking is absent, the ignition timing is incrementally advanced until the knock threshold is reached and thus brings the timing as close as practical to the MBT value for the instant set of operating conditions. Cyclic repetition of the ignition timing advancement and retardation holds the timing at MBT while the engine is operating in the predetermined zone.

Abstract: An intake air quantity control apparatus for use in a motor vehicle for controlling an intake air quantity introduced into an engine of the motor vehicle by controlling the opening degree of a throttle valve provided in an air intake passage of the engine. The intake air quantity control apparatus includes a stepping motor connected to the throttle valve and operatively coupled to an accelerating pedal of the motor vehicle so that the stepping motor drives the throttle valve in response to depression of the accelerating pedal. The stepping motor is arranged to be further controllable in response to a control signal from a control unit of the motor vehicle and thus comprising a stator having a plurality of magnetic poles and a plurality of windings respectively wound around the magnetic poles and excited by the control signal, a first rotor rotatable with respect to the stator in response to excitation of said windings of said stator, and a second rotor disposed between the stator and the first rotor.

Abstract: A liquid or fluid cooled housing of a rotary piston internal combustion engine of trochoidal type of construction consisting of side parts and a dual-arc housing inner surfacing and having an eccentric shaft passing through the side parts. A triangular piston rotates upon an eccentric mounted on the eccentric shaft and corners of the triangular piston are in sliding engagement along the housing inner surfacing. A connection tube is provided supplying cooling medium into the individual housing sections. A series connection of the cooling medium circulation is produced between a first side part in direction of cooling medium flow and a first housing part as well as between a center part and a second housing part respectively having a closure disc installed therewith. Perforations are provided for pressure equalization in the closure discs.

Abstract: An air-cooled multi-cylinder internal combustion engine in which cooling air flows through a cylinder row transversely to the cylinders. A one-piece deflection part made of light-metal or plastic material and covering all cylinders is arranged as air guide device at the cooling air discharge side.

Abstract: An essentially unitary all plastic intake manifold has two essentially L-shaped sections facing one another to form a U-shaped assembly, the upper section including an air throttle body integral with an air plenum in turn integral with a plurality of laterally spaced tuned manifold runners, the lower section having an equal number of laterally spaced manifold runners connected to engine cylinder head intake ports, and a fuel system formed integral with the lower runners and including a fuel pressure regulator and fuel supply and return lines serially connecting fuel injector receiving cups providing a bottom feed of fuel to the injectors and a constant purge of fuel from the cups, for efficient engine operation.

Abstract: A cooling fan shroud mounted on an engine vehicle comprises an engine mounting, a radiator mounting and a flexible member made of rubber bellows and connecting the engine mounting and the radiator mounting. The lower portion of the engine mounting is formed in a reverse U-shape, and the lower portion of radiator mounting is formed in a reverse L-shape. The radiator has a support projecting from the lower portion thereof and formed in a U-shape cross section. The reverse L-shaped lower portion of the radiator mounting of the fan shroud is inserted into the U-shaped support projecting from the lower portion of the radiator. The engine has a support formed in a L-shape at the lower portion thereof. The reverse U-shaped lower portion of the engine mounting is inserted onto the L-shaped support of the engine. The upper portions of the engine mounting and radiator mounting of the fan shroud are secured to the engine and the radiator by means of screws.