US PATENT SUBCLASS 246 / 382
SWITCH-CONNECTED FROGS

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


246 /   HD   RAILWAY SWITCHES AND SIGNALS

382SWITCH-CONNECTED FROGS {6}
383  DF  .~> Overlapped main {1}
385  DF  .~> Swinging tongue {1}
387  DF  .~> End-pivoted rail
388  DF  .~> Center-pivoted rail
389  DF  .~> Swinging rail {2}
392  DF  .~> Transversely sliding rail

DEFINITION

Classification: 246/382

(under the class definition) Subject matter having a switch which is combined with various types of movable-rail substitutes for rigid frogs, insuring an unbroken rail at the frog-point, and which is provided with mechanism for the simultaneous actuation of the switch and the frog substitute.

(1) Note. The subclass also includes movable-rail frogs intended to be used as an element in a frogless switch.

SEE OR SEARCH THIS CLASS, SUBCLASS:

274, and 275+, for similar frog structure.