US PATENT SUBCLASS 213 / 32 R
.~.~.~ Shoes and wedges


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

Internet Version by PATENTEC © 1999      Terms of Use



213 /   HD   RAILWAY DRAFT APPLIANCES

7  DF  CUSHIONED {9}
22  DF  .~ Combined spring and friction {8}
31  DF  .~.~ Friction casings {1}
32 R.~.~.~ Shoes and wedges {5}
33  DF  .~.~.~.~> Interleaved friction plates
34  DF  .~.~.~.~> Compound wedges
32 A  DF  .~.~.~.~> Plural spring
32 B  DF  .~.~.~.~> Retaining means on draft gear barrel
32 C  DF  .~.~.~.~> Draft gear assembly

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.