Method and means of multiple doweling for laminating crossties

Metal working – Method of mechanical manufacture – Assembling or joining

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29526, 144 1R, 144 3R, 144318, 156513, 227 27, 227 67, 227 70, 227 73, 408 42, B21D 3903, B27F 702

Patent

active

039927679

ABSTRACT:
Apparatus for laminating crossties comprising means for conveying a plurality of railroad crossties in substantially mutually parallel relationship onto a lifting mechanism, said lifting mechanism being operable for simultaneously moving a plurality of the crossties into a clamping apparatus wherein the crossties are securely clamped in side-by-side relation, drill means operable for drilling transversely extending bore means through said plurality of crossties, means for inserting dowel pine through said bores for securing the plurality of crossties together in a laminated arrangement and means for removing the laminated crossties from the clamped position and from the apparatus.

REFERENCES:
patent: 2722248 (1955-11-01), Anguera
patent: 3069687 (1962-12-01), Fulham
patent: 3099301 (1963-07-01), Bennett
patent: 3891134 (1975-06-01), Kratsch et al.

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