Abstract: A friction pad assembly comprises a backing plate having friction material secured thereto, and an anti-rattle spring having a bent portion intermediate its ends, the bent portion seating in a recess in the backing plate. To avoid problems caused by heat when the spring is held in place in the recess by the friction material and located before heat bonding of the friction material, the recess is accessible to secure the spring to the backing plate after the friction material is secured to the backing plate. The bent portion is preferably retained in position in the recess by its own resilience.

Abstract: The present invention provides a friction pad assembly comprising a backing plate and a pad of friction material secured thereto, the backing plate having at least one hole offset from the central axis of the assembly, through which a pad support pin passes to engage a wire spring supported on the backing plate and having two generally oppositely directed arms. The arms engage either the pad support pins and/or part of the brake and produce an asymmetric loading of the pad assembly, the spring biassing the friction pad assembly against an abutment face of the brake to thus reduce the possibility of the pad assembly hitting the abutment face to produce disturbing `klonking`.

Abstract: A friction pad assembly comprises a backing plate having friction material secured thereto, and an anti-rattle spring having a bent portion intermediate its ends, the bent portion seating in a recess in the backing plate. To avoid problems caused by heat when the spring is held in place in the recess by the friction material and located before heat bonding of the friction material, the recess is accessible to secure the spring to the backing plate after the friction material is secured to the backing plate. The bent portion is preferably retained in position in the recess by its own resilience.

Abstract: The adjuster has a clutch mechanism operative between an actuator piston and an auxiliary mechanical actuator. The clutch mechanism includes a first member and a second member, one of the members being connected to the actuator piston for axial movement therewith at all times in both directions and the other of the members being connectible with the mechanical actuator. The one member is free to move back and forth with the actuator piston during normal service brake applications, the other member not hindering its movement. Also, the other member is only moved to engage the one member upon actuation of the mechanical actuator. Thus the actuator piston is free to move back during "knockback" and normal braking is not hindered by the clutch mechanism.

Abstract: A friction pad assembly comprises a backing plate having friction material secured thereto, and an anti-rattle spring having a bent portion intermediate its ends, the bent portion seating in a recess in the backing plate. To avoid problems caused by heat when the spring is held in place in the recess by the friction material and located before heat bonding of the friction material, the recess is accessible to secure the spring to the backing plate after the friction material is secured to the backing plate. The bent portion is preferably retained in position in the recess by its own resilience.

Abstract: A disc brake wear indicator which in use is secured within a bore in the carrier member of a pinsliding caliper disc brake comprises electrical conductors which are normally electrically connected by a ring secured to a sleeve. A probe is secured to one of the caliper pins by a spring ring and is coupled to the sleeve by a lost-motion connection formed by flanges. The indicator is secured in the bore when the brake pads are new, and because the ring will grip the pin-bore at any point along its length the initial position of the flanges shown in the drawings is always obtained regardless of manufacturing tolerances in the brake components. After predetermined brake pad wear the pin will have moved along the bore sufficiently to bring the flanges into contact and move the ring away from the conductors to provide a brake pad wear signal.