B - Operations – Transporting – 66 – C
Patent
B - Operations, Transporting
66
C
296/9
B66C 23/84 (2006.01) B62D 55/10 (2006.01) E02F 9/02 (2006.01) E02F 9/12 (2006.01)
Patent
CA 1129457
LOWER AND CRAWLER FRAME CONSTRUCTION FOR CRAWLER PROPELLED MACHINES Abstract of the Disclosure A lower works construction for a machine such as a large mining shovel or dragline having a center journal and an upper frame rotatable about a vertical axis of its center journal generally consisting of a lower frame section having a housing for the center journal, a plurality of leg sections mounted on the lower frame section and projecting laterally therefrom and a pair of propelling unit support frame sections, the lower frame section having a plurality of radially project- ing bulkheads emantating from the center journal housing, the leg sections having laterally projecting bulkheads disposed in registry with the radially projecting bulkheads of the lower frame section and the support frame sections having laterally projecting bulkheads disposed in registry with the laterally projecting bulkheads of the leg sections whereby vertical and radial loads applied to the upper frame and imposed on the lower frame section will be transferred through the lower frame section to the support frame sections along the bulkheads of the lower frame and leg sections.
342667
Dresser Industries Inc.
Macrae & Co.
LandOfFree
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