E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
E05F 5/00 (2006.01) E02F 3/407 (2006.01)
Patent
CA 2157075
A door brake assembly (20) to control the closing of a dipper door (11) on a shovel dipper (10 has a torsion bar (39) connected to the dipper door (11) by links (15, 32). A lever (48) on the other end of the torsion bar (39) selectively engages spaced snubbers (57, 58) to provide a braking (or damping) action to the dipper door (11) in the last portion of its travel to the open or closed position. The torsion bar (39) is mounted in journals (23, 24, 43, 44) on a base (22) mounted on the dipper (10). Usually, each dipper door (11) is provided with a pair of the brake assemblies (20) mounted in mirror image .
Little Alexander Robert
Little Marlene Joy
Uren John Russell
LandOfFree
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