Segmental Rim Patents (Class 74/448)
  • Adjustable sprocket drive for track-type vehicles and method for using the same
    Patent number: 3944297
    Abstract: A track-type vehicle comprises a pair of endless track assemblies including a plurality of articulated track shoes. A drive sprocket, engaged with the track assembly for driving the same, comprises a pair of laterally spaced annular support members and a toothed sprocket member detachably mounted on an outboard side of each of the support members. The sprocket members may be detached from the support members and attached to inboard sides thereof to increase the service life of drive lugs formed on the track shoes.
    Type: Grant
    Filed: November 29, 1974
    Date of Patent: March 16, 1976
    Assignee: Caterpillar Tractor Co.
    Inventor: Robert N. Stedman
  • Ditcher
    Patent number: 3933053
    Abstract: A multi-phase drive system is provided in a ditcher having a non-axially supported digging wheel comprising spaced rim assemblies. Each rim assembly carries a double segment of teeth. A pair of double sprockets drive each rim assembly. The land of each double sprocket functions as a bearing to support the digging wheel. The drive systems for the rim assemblies are interconnected by a common shaft. The system functions to drive an unusually large and heavy digging wheel.
    Type: Grant
    Filed: August 23, 1974
    Date of Patent: January 20, 1976
    Assignee: Banister Pipelines Ltd.
    Inventor: Fred Willie Bartels