Abstract: In an apparatus wherein part of the compressed air from the compressor of a turbocharger is used as control air and is made to act on a diaphragm so as to control an exhaust gas relief valve, thereby controlling the amount of exhaust gas to be charged into the turbine of a turbocharger. The present invention discharges into the exhaust gas the control air which acts on the diaphragm.

Abstract: The disclosure is of a device for connecting togetheer two optical devices, and is primarily intended for quick connection and disconnection of two optical devices such as an endoscope and a viewing tube or two lenses.

Abstract: A vehicle opening roof comprises a frame which surrounds a longitudinal opening in the roof of a vehicle and a panel assembly which is guided between spaced parallel guide rails forming the side members of the frame. A transverse mounting member is slidably guided between the guide rails and incorporates a handle-operated locking mechanism for engagement with a front rail at the front end of the frame to lock the panel assembly in the closed position. The mounting member also incorporates a first bracket for connection to a rigid panel, a second bracket for connection to a rigid flap at the forward end of a flexible covering, and a transmission mechanism for connection to the flap and operable in synchronism with the handle-operated locking mechanism to draw the flap down into engagement with the roof at the front end of the opening.

Abstract: A safety device for use in conjunction with bench press exercises is disclosed wherein a pair of arms controllable by the exerciser may be elevated into engagement with a bar bell to raise it clear of the exerciser before it can seriously injure him should he be unable, due to fatigue, to raise the bar bell to its normal support pegs above the bench. The elevating mechanism may be a power operated jack or counter weights normally controlled by a jack.

Abstract: The present invention is concerned with a sliding caliper disc brake having a torque member and a caliper incorporating at least one hydraulic actuator. The caliper is attached to the torque member for sliding movement relative thereto and is arranged to act on a pair of friction pad assemblies. Mutually abutting surfaces of the caliper and a friction pad assembly are such that one of the surfaces is roughened while the other of the surfaces is formed of a material which is relatively soft in relation to one of the surfaces. Thus, under braking, the roughened surface is caused to impress itself into the softer surface so as to restrain rotation of the friction pad assembly relative to the caliper.

Abstract: A fluid-pressure operated servo-motor assembly transmits an effort from a pedal to a master cylinder for wheel brakes. The assembly includes in a housing, a pedal-operated input member, an output member acting on the master cylinder and a movable wall for transmitting the effort between them. The effort is augmented by fluid pressure in a boost chamber acting on the movable wall. The boost pressure is controlled by a valve in a stationary part of the housing. An operating assembly controls operation of the valve, and comprises a non-rotatable operating member, and a rotatable actuating member co-operating with the valve.To ensure positive operation of the valve, a helical engagement provided between the operating and actuating members, and the co-operation of the valve with the actuating member are arranged so that relative axial movement between the members causes rotation of the actuating member to operate the valve.

Abstract: A control valve assembly for a vehicle braking system comprises an inlet, an outlet, a proportioning valve having a control valve member movable to open and close the valve to control communication between the inlet and the outlet, and an inertia-responsive device, preferably a pendulum, responsive to deceleration of the vehicle and operable to reduce the pressure at the outlet after the valve has closed. The inertia-responsive device supplies a signal in dependence upon deceleration, and a servo system applies a force to the control valve member in response to the signal to move the control valve member in a direction to reduce the outlet pressure.

Abstract: The disclosure is of a system for collecting and filtering gases and vapors produced in various parts of an internal combustion engine and combining them with fresh air and supplying the mixture to the engine with the fuel-air mixture from the carburetor to improve combustion.

Abstract: A belt conveyor in which the belt travels around a lateral curve or curves and comprises load-supporting belt sections (2) pivoted between transverse rods (1), has guide blocks (4) at the ends of the transverse rods (1) with bearing parts (20) which co-operate substantially without friction with runners (5) at the or each curve to guide the belt in its travel with reduced wear and tension. Preferably the bearing parts (20) and runners (5) are made of self-lubricating material. In one form the bearing parts are horizontally facing channels (20) in the blocks (4) engaged by tongue portions (25) of the runners (5). The blocks each have two adjacent transverse rods (1) retained to them. The transverse rods are also connected by links (3) alternately arranged against external surfaces of the blocks (4) and in grooves (18) in the blocks where they are connected to the rods.