Importance

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Abstract

A safety device for a trolley riding an inclined track. The safety device includes a safety line running parallel to a tow cable operating the trolley. The trolley includes a lever with a distal end continuously engaging the safety line. When the lever is swung, the distal end takes up slack in the safety line and trips a switch at an end of the safety line to stop operation of the tow cable. The safety device further includes a tension mechanism for maintaining a predetermined amount of tension in the line and for automatically returning the line to such tension after the lever has been pulled. The safety device further includes an isolator connected between the safety line and the switch to isolate the switch from vibrations or disturbances in the line during operation of the trolley to minimize a premature tripping of the switch. The safety device still further includes a cowcatcher or lever portion extending transversely of the track for swinging the lever and taking up slack in the line when the cowcatcher engages an obstruction on the track.

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First Claim