# US 8,783,190 B2 · Trolley braking system

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- Number: US 8,783,190 B2
- Document ID: US8783190B2
- Status: Granted
- Kind: B2
- Application number: 13/419,239
- Filed: 2012-03-13
- Published: 2013-09-19
- Granted: 2014-07-22
- Earliest claimed: 2012-03-13
- Applicants: Daniel Blair Boren; Brett J. Epstein; Joel C. Haas; Jesse E. Miller; Gary P. Prus
- Inventors: Daniel Blair Boren; Brett J. Epstein; Joel C. Haas; Jesse E. Miller; Gary P. Prus
- Web page: https://patentgrep.com/patent/US8783190B2

## CPC

- B61B 7/00: Rope railway systems with suspended flexible tracks
- A63G 21/20: Slideways with movably suspended cars, or with cars moving on ropes, or the like
- B61H 9/02: for aerial, e.g. rope, railways
- F16D 63/008: {Brakes acting on a linearly moving member}
- B61B: RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR (lifts or hoists, elevators, escalators, moving walkways B66B)
- A63G: MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
- B61H: BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES (arrangements in rail vehicles for adjusting wheel-braking force to meet varying vehicular or permanent-way conditions B60T8/00; transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive, brake systems incorporating such transmitting means, e.g. air-pressure brake systems, B60T13/00; construction, arrangement or operation of valves incorporated in power brake systems B60T15/00; component parts, details or accessories of brake systems B60T17/00)
- F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES

## Abstract

A trolley braking system for smoothly reducing the speed of a rider supported by a harness on a cable or rope approaching a landing platform comprises a cylinder having a closed end and a piston slidably mounted in the interior. A braking cable is secured to the piston and routed through an opening in the closed end of the cylinder to a braking block, which is slidably mounted on the cable between the trolley and the landing platform. The system may also may also include a relief valve to release compressed air from the cylinder, so that the braking force may be controlled.

## Claims

### Claim 1

A braking system for a trolley which suspends and transports a rider on a cable to a landing platform comprising:
a cylinder having a closed end and a piston slidably mounted in the interior, the cylinder fixedly mounted to a support proximate the landing platform;
a braking cable secured to the piston, the braking cable routed through an opening in the closed end of the cylinder;
a relief valve in pneumatic communication with the cylinder configured to be opened by movement of the braking cable as the piston approaches the closed end of the cylinder; and
a braking block slidably mounted on the cable between the trolley and the landing platform, the braking block connected to the braking cable.

### Claim 2 (depends on 1)

The braking system of claim 1 wherein the relief valve is biased to the closed position.

### Claim 3

A braking system for a trolley which suspends and transports a rider on a cable to a landing platform comprising:
a cylinder haying a closed end and a piston slidably mounted in the interior, the cylinder fixedly mounted to a support proximate the landing platform;
a braking cable secured to the piston, the braking cable routed through an opening in the closed end of the cylinder; and
a braking block slidably mounted on the cable between the trolley and the landing platform, the braking block connected to the braking cable,
wherein the braking cable is routed over a pulley which is pivotally mounted to the support and through a pulley block intermediate the pivotally-mounted pulley and the piston.