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The inventors of the patent are Norman G Anderson, Anthony R links of london sale and Rami V Nassar. The International classification number is B61H 11/00. According to the Controller General of Patents, Designs & Trade Marks, "A system for changing brake shoes, comprising a railway car truck having a longitudinal axis and having a pair of spaced railway car truck side frames; a bolster extending transversely between the pair of side frames and perpendicular to the longitudinal axis of the railway car truck, each of the side frames having a mid-region, front and back ends, a side window between the front end and the mid-region, and a side window between the back end and the mid-region; a pair of spaced wheel sets, each valentines Day bracelets  set having spaced apart wheels, one wheel set being mounted at the front end of the side frames and one wheel set being mounted at the back end of the side frames, a brake system having a brake shoe juxtaposed with one wheel, a brake shoe support member, and a removable brake shoe key for mounting the brake shoe on the brake shoe support member, the brake shoe being aligned for access through a side window of the adjacent side frame, there being a key removal zone through which the brake shoe key must move for removal of the brake shoe key, the key removal zone being disposed above the brake shoe key and Links of London A Charm through the side window of the adjacent side frame; a structural member disposed so that access for manipulation of the brake shoe key in the key removal zone is limited, the structural member having an exterior surface with vertically aligned top and the bottom holes joined by an open space and a side access hole in communication with the open space between the top and bottom holes, the top and bottom holes and open space lying ,)n the key removal zone;^,. wherein the brake shoe key may be removed by moving it upwardly through the bottom hole, open space and top hole in the associated structural member; and wherein the side access hole is sized, shaped and positioned to allow a tool to be inserted through the side window of the side frame." Amsted Industries Incorporated, Links of London Two Hearts Charm Red its divisions and subsidiaries, manufactures industrial components for the railroad, vehicular, and construction and building markets.