US PATENT SUBCLASS 213 / 35
.~.~ Central friction post

Current as of: June, 1999
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213 /   HD   RAILWAY DRAFT APPLIANCES

7  DF  CUSHIONED {9}
22  DF  .~ Combined spring and friction {8}
35.~.~ Central friction post {1}
36  DF  .~.~.~> Shoes and wedges

DEFINITION

Classification: 213/35

(under subclass 22) Devices wherein one of the friction elements is in the form of a post centrally disposed.