Abstract: A brake assembly of the type having a brake shoe platform and one or more brake plates mounted on the platform, each brake plate having a brake lining and a backing plate attachable to an outer surface of the platform, is characterized in that the platform has a series of circumferentially spaced apertures each adjacent its rear edge, and a series of circumferentially spaced recesses communicating with its front edge. The backing plate has two rear flanges each being L-shaped and having an inner portion depending from its inner surface and a rearwardly projecting outer tongue portion, these rear flanges being sized to pass through the apertures in the brake shoe platform. Also, the backing plate has two front flanges, each having an inner portion depending from its inner surface and an outer tongue portion, these front flanges being arranged to slide into the recesses at the front edge of the platform.

Abstract: A brake assembly of the type having a brake shoe platform and one or more brake plates mounted on the platform, each brake plate having a brake lining and a backing plate attachable to an outer surface of the platform, is characterized in that the platform has a series of circumferentially spaced apertures each adjacent its rear edge, and a series of circumferentially spaced recesses communicating with its front edge. The backing plate has two rear flanges each being L-shaped and having an inner portion depending from its inner surface and a rearwardly projecting outer tongue portion, these rear flanges being sized to pass through the apertures in the brake shoe platform. Also, the backing plate has two front flanges, each having an inner portion depending from its inner surface and an outer tongue portion, these front flanges being arranged to slide into the recesses at the front edge of the platform.

Abstract: A cradle for a hand-held tool for machining of cylinder head valve guide holes. The tooling has a pilot portion. A collar has a passage for the tooling and is shaped to engage a least worn portion of a valve seat associated with the valve guide hole around the circumference thereof without engaging more worn portions of the valve seat. The cradle comprises a bracket which has a passage for the tooling without passage of the collar so that the bracket can bear on the collar. Force is applied to the bracket to hold the collar in engagement with the valve seat.