Caster brake assembly

In a caster assembly having a wheel, a horn, mounted to said wheel, and means mounted to said horn for pivotal attachment to an item to be supported by the caster assembly, the improvement comprising:

• a brake shoe member having a wheel contactor shoe extending parallel to the rotational axis of the wheel and disposed radially outward from the wheel and movable inwardly to a position of engagement with the tread of the wheel to prevent wheel rotation;
• said brake shoe member having a locator guidingly received on the horn and locating said shoe laterally with respect to the horn and locating said shoe at the correct index position with respect to the horn about a rotational axis of the wheel, said locator having an offset extending through a hole in a wall of said horn, said locator being slidingly engageable with said wall above and below said hole on the inside and outside of said wall respectively, to provide the lateral location of said shoe, and the front and rear edges of the hole providing guiding engagement with front and rear edges of the offset to maintain the correct index position of the shoe with respect to the horn, said wall of said horn being between said wheel and the portion of the locator below said hole whereby said wheel is centered between said wall and an opposite wall of said horn;
• and shoe operating means associated with said horn and operable to alternately move said shoe to and from said engagement position.