Goods & Services

gears, speed reducers and gear boxes being parts of machines other than for land vehicles; machines being drive systems for moving movable bridges and structural parts thereof; span lock systems being machines for locking the outer ends of the movable leaves of a drawbridge together; metal shock absorbing span lock assemblies, each comprising a bar lock in direct contact with wear shoes located in guides and sockets for use on drawbridges; pillow block housings for journal bearings for machines; acme screw driven linear actuators, other than for land vehicles

Abstract

A wear resisting span lock system for bascule bridges includes a normally-inactive hydraulic lockbar shoe expander operable to minimize sliding engagement of the lockbar with its guiding and receiving shoes only during bridge opening and closing operations.

IPC Classes  ?

• E01D 15/06 - Bascule bridgesRoller bascule bridges, e.g. of Scherzer type

Goods & Services

metal shock absorbing span lock assembly comprising a bar lock in direct contact with wear shoes located in guides and sockets for use on drawbridges