Transportation apparatus

Details Transportation apparatus Transportation apparatus

B - Operations, Transporting

66

B

198/4

B66B 23/24 (2006.01) B66B 23/04 (2006.01)

Patent

CA 1214133

17 ABSTRACT OF THE DISCLOSURE Transportation apparatus for transporting pas- sengers between spaced landings, including a conveyor, a conveyor drive unit, a handrail, a handrail drive unit, and a handrail drive pulley. The conveyor drive unit includes first and second spaced sprockets, and a drive chain reeved about the sprockets which drives the con- veyor. The handrail drive pulley and a predetermined one of the sprockets are separately journaled for independent rotation about a common axis, with a drive belt linking the handrail drive pulley and predetermined rotational elements of the handrail drive unit. The pulley is selectively engageable with the predetermined one of the sprockets, to drive the handrail in synchronism with the conveyor when they are engaged, and enabling the fric- tional forces resisting the movement of the handrail to be directly measured when they are not engaged.

463056

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