Brake Mechanism Small 199×320 Medium 399×640 Large 638×1024 Download Tiff Original 1496×2400 | (441.9 KB) Description A device for slowing or stopping motion, as of a vehicle, especially by contact friction. Keywords brake, brake system, brakes Galleries Rail Transportation Source: Government Printing Office Official Gazette (Washingon, DC: Government Printing Office, 1912)