Oblon, Fisher, Spivak, McClelland & Maier
Feed safety apparatus for movable member
 A feed safety apparatus for a movable member slidably supported on a stationary bed of a machine tool. A feed device moves the movable member at various speeds. A hydraulic cylinder is fixedly mounted on the movable member and includes a piston slidably received therein. A reference plate member is secured to the bed and operatively connected to the piston for permitting bodily movement of the hydraulic cylinder and the piston within a predetermined distance, but restraining movement of the piston beyond the predetermined distance to cause relative movement between the hydraulic cylinder and the piston. A fluid flow regulating device is disposed between the pair of cylinder chambers of the hydraulic cylinder for restrictively controlling relative movement between the hydraulic cylinder and the piston. 
Toyoda Koki Kabushiki Kaisha
B G G G
B24B G05B G05B G05B
inventional inventional additional inventional
Ryuji Kunihiko Norihiko Kenichi Yasuo
Wada Unno Shimizu Munekata Suzuki