Patent ID: 6845720
Filing Date: 2005-01-25
Classification: B61B,B61G

Abstract:
1. A conveyor system comprising: a) a first drive trolley adapted to be driven about a track; b) a second load trolley that is operably driven about said track by said drive trolley; c) a shock absorbing tow bar joining said drive trolley and said load carrying trolley; said tow bar comprising: d) a first elongate tube; e) a second elongate tube reciprocally received relative to said first tube; f) a plunger secured to said first tube by a shaft and located within said second tube so as to be reciprocal therein; g) a pair of brake surfaces located on and extending from opposite sides of said plunger so as to frictionally engage said second tube; and h) a brake biasing structure for applying radial outward pressure to said braking surfaces; said brake biasing structure comprising: