EP 0315704 B1 19910807 - RAIL GRINDING MACHINE FOR REPROFILING RAILHEADS
Title (en)
RAIL GRINDING MACHINE FOR REPROFILING RAILHEADS
Publication
Application
Priority
EP 87116468 A 19871107
Abstract (en)
[origin: JPH01280102A] PURPOSE: To reduce an ungrindable area by detecting an area of a point by arranging at least two sensors with every single rail, and lifting a grinding head by sending a detecting signal to a control unit. CONSTITUTION: Sensors C1, C4 respectively arranged on rails R1, R2 detect expansive opening of a traveling tread of a blade Z when the sensors pass through a blade area LZ. On a frog H, sensors C2, C4 detect the inside of the frog H and an extent of the traveling tread on the rail R2 when the sensors pass through a frog area LH.
IPC 1-7
IPC 8 full level
B24B 7/10 (2006.01); E01B 31/17 (2006.01)
CPC (source: EP US)
E01B 31/17 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0315704 A1 19890517; EP 0315704 B1 19910807; AT E66030 T1 19910815; AU 2473888 A 19890511; AU 604168 B2 19901206; CA 1313050 C 19930126; DD 275837 A5 19900207; DE 3772057 D1 19910912; JP H01280102 A 19891110; US 4908993 A 19900320; YU 203988 A 19901231
DOCDB simple family (application)
EP 87116468 A 19871107; AT 87116468 T 19871107; AU 2473888 A 19881104; CA 582178 A 19881107; DD 32142888 A 19881103; DE 3772057 T 19871107; JP 27954588 A 19881107; US 26576588 A 19881101; YU 203988 A 19881103