US PATENT SUBCLASS 213 / 32 A
.~.~.~.~ Plural spring

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}
31  DF  .~.~ Friction casings {1}
32 R  DF  .~.~.~ Shoes and wedges {5}
32 A.~.~.~.~ Plural spring

Unofficial Alpha Subclasses: R A B C

DEFINITION

Classification: 213/32

(under subclass 31) Devices wherein the friction is generated by wedging of shoes outwardly against the inner walls of the casing.