Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Walter Bau AG
Original Assignee
Dyckerhoff and Widmann AG
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Application filed by Dyckerhoff and Widmann AGfiledCriticalDyckerhoff and Widmann AG
Application grantedgrantedCritical
Publication of FR63416EpublicationCriticalpatent/FR63416E/en
E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
E01B3/32—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement
E01B3/34—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone with armouring or reinforcement with pre-tensioned armouring or reinforcement
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Engineering & Computer Science
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Structural Engineering
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FR63416D1952-10-201952-10-20
Reinforced concrete railway sleeper, and method for its manufacture
ExpiredFR63416E
(en)