Railway draft appliances – Couplings – Glass table
Patent
1988-10-20
1991-09-17
Oberleitner, Robert J.
Railway draft appliances
Couplings
Glass table
446138, A63H 1918
Patent
active
050487043
ABSTRACT:
A detachably coupling device for a detachably coupling two bodies. The detachable coupling device on each of the bodies comprises a magnet movably mounted on the body and having a north pole and a south pole. The strength of the magnetic field existing between the magnets on the first body the second body may be selected to allow, preferably, manual detachable coupling of the two bodies. As the two bodies are placed closer together until the magnets are contiguous, the movement of the magnets will cause the magnets under the influence of the magnetic field to move until the north pole of one magnet is contiguous the south pole of the other magnet thereby coupling the two bodies together.
REFERENCES:
patent: 2500180 (1950-03-01), Hubbell
patent: 2607157 (1952-08-01), Smith
patent: 2939245 (1960-06-01), Orel
patent: 3303606 (1967-02-01), Mann
patent: 3330066 (1967-07-01), Crawford
patent: 3605332 (1970-01-01), Stepek
Kawada Co. Ltd.
Le Mark T.
Oberleitner Robert J.
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