Railways: surface track – Fastenings – Clamps
Patent
1987-06-10
1989-01-03
Smith, Leonard E.
Railways: surface track
Fastenings
Clamps
238 26, 238310, E01D 1912, E01B 930
Patent
active
047950919
ABSTRACT:
An adjustable railway fastening for securing a bridge girder or cover plate of the girder to a cross-tie on a bridge which includes a resilient clip having a planar body portion with an elongated slotted opening therein for a bolt which is offset with respect to the resilient end engaging bridge girder. The resilient end in the form of a compression arch engages a girder flange to limit vertical movement and a tie-engaging end includes downwardly and outwardly extending ears for laterally restraining the cross-tie. A shoulder on the resilient end also engages a side of the girder flange to further limit lateral movement. In order to provide greater resilience, the arch includes two separate finger portions joined at the base with the body portion to form a U, each of the finger portions having a lip adapted to overlie the girder flange. A plate has an aperture for receiving a bolt and a projecting lug adjacent to the aperture to facilitate securing a bolt tensioning member, i.e., a nut. The clip serves as a large washer to firmly hold the cross-tie as well as the girder when the bolt is inserted through the opening and secured with the nut. The contacting surfaces of the plate and the body portion are serrated. The plate serves to locate the bolt at different points along the length of the slot freely adjusting the length of the fastening.
REFERENCES:
patent: 3362639 (1968-01-01), Van Sant
patent: 3552649 (1971-01-01), Burwell
patent: 3659784 (1972-05-01), Klosk
patent: 3796369 (1974-03-01), Favil
patent: 4254909 (1981-03-01), Rex
patent: 4561589 (1985-12-01), Hixson
patent: 4687134 (1987-08-01), Burwell
Rails Company
Smith Leonard E.
Walnoha Leonard P.
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