EP 0350620 B1 19920429 - METHOD FOR MANUFACTURING CONCRETE SLEEPERS FOR SWITCH POINTS
Title (en)
METHOD FOR MANUFACTURING CONCRETE SLEEPERS FOR SWITCH POINTS
Publication
Application
Priority
DE 3823860 A 19880714
Abstract (en)
[origin: WO9000647A1] In forms for point sleepers, the base plate (3) of the form also serves as a template for the positions of the built-in components. Usually, a new form is made for each series of a particular type of sleeper. In the case of small series in which the position of the built-in component varies, it is economical to re-use the base plate (3). To this end, boreholes (A, B, C) for several types of prefabricated parts are made in the base (3) before it is incorporated in the form. The boreholes not required are temporarily plugged with suitable material, the combination of boreholes (B) required for a particular type of prefabricated part is found by special search procedures and the temporary filling is removed from these boreholes.
IPC 1-7
IPC 8 full level
B28B 7/30 (2006.01); B28B 23/00 (2006.01); E01B 7/22 (2006.01)
IPC 8 main group level
B28B (2006.01)
CPC (source: EP US)
B28B 23/00 (2013.01 - EP US); B28B 23/005 (2013.01 - EP US); E01B 7/22 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0350620 A1 19900117; EP 0350620 B1 19920429; AT E75508 T1 19920515; DD 300085 A5 19920521; ES 2012315 A4 19900316; ES 2012315 T3 19921116; FI 901261 A0 19900314; NO 894847 D0 19891204; NO 894847 L 19900125; PT 91143 A 19900208; PT 91143 B 19950703; RU 2005598 C1 19940115; US 5124093 A 19920623; WO 9000647 A1 19900125
DOCDB simple family (application)
EP 89110388 A 19890608; AT 89110388 T 19890608; DD 33077489 A 19890713; EP 8900644 W 19890608; ES 89110388 T 19890608; FI 901261 A 19900314; NO 894847 A 19891204; PT 9114389 A 19890712; SU 4743301 A 19900313; US 43468389 A 19891005