Another method of entry involves descending from the ceiling with a Zip-line or rappel line and stunt harness.

A pulley is a wheel on an axle that is designed to support movement of a cable or belt along its circumference.

The drive element of a pulley system can be a rope, cable, belt, or chain that runs over the pulley inside the groove.

A rope and pulley system, that is a block and tackle, is characterized by the use of a single continuous rope to transmit a tension force around one or more pulleys to lift or move a load — the rope may be a light line or a strong cable.

The basic idea of funicular operation is that two cars are always attached to each other by a cable, which runs through a pulley at the top of the slope.

The cars can be attached to a second cable running through a pulley at the bottom of the incline in case the gravity force acting on the vehicles is too low to operate them on the slope.

This practice is used for funiculars with gradients below 6 %, funiculars using sledges instead of cars or any other case where it is not ensured that the descending car is always able to pull out the cable from the pulley in the station on the top of the incline.

* A main winch with 50-tonne pull ( can exert 98 tonnes-force using an included pulley and anchor point on the vehicle ), plus a small pilot winch to aid in deploying the main cable.

By rotating a wheel / axle ( e. g. drum, gear, pulley or shaft ) a linear member ( e. g. cable, rack, chain or belt ) moves.

Fraying due to fatigue is most likely if the cable passes over a pulley, which on bicycles is often below the recommended diameter, or where the cable is bent repeatedly where it attaches to the brake lever or caliper.

When the free end of the cable is pulled by hand or by a winding machine, the pulley system delivers a force to the load that is equal to the applied force multiplied by the number of lengths of cable passing between the two blocks.

A zip-line ( also known as a flying fox, foefie slide, zip wire, aerial runway, or aerial ropeslide ) consists of a pulley suspended on a cable, usually made of stainless steel, mounted on an incline.

It is designed to enable a user propelled by gravity to travel from the top to the bottom of the inclined cable by holding onto, or attaching to, the freely moving pulley.

With the flying fox, the pulley ( s ), attached to the car, are fixed to the cable.

* Friction created between the pulley against the cable.

The zip line trolley is the frame or assembly together with the pulley ( s ) aka sheave ( s ) inside that run along the cable.

) Often more than one pulley is used to spread the load over more than just one spot on the cable and reduce cable bending stresses that may lead to metal fatigue and cable breakage.

This also reduces any tendency of a pulley to twist sideways and run up and off of the cable with obvious disastrous results.

In addition, the trolley is usually shaped or has protrusions or parts to hold the cable in the groove ( s ) of the pulley ( s ).

The cable exiting the pulley system will have a moderate tension on it, but most importantly, when the cable is drawn in or out, and the extension of the spring changes by only a fifth of that distance, so that the tension force of the spring will not change much.

Some gravity railroads were designed to allow the weight of the descending loaded cars to lift the empty cars back up to the top, using a cable looped around a pulley at the top for a portion of the line.

From Battersby, goods trains also ran south to Ingleby where a cable pulley system raised wagons up a steep incline and across the moors to iron ore workings at Rosedale and Farndale.

The elements of anchoring gear include the anchor, the cable ( also called a rode ), the method of attaching the two together, the method of attaching the cable to the ship, charts, and a method of learning the depth of the water.

One method of accomplishing this moor is to set a bow anchor normally, then drop back to the limit of the bow cable ( or to double the desired scope, e. g. 8: 1 if the eventual scope should be 4: 1, 10: 1 if the eventual scope should be 5: 1, etc.

As a method of in-band signaling, DTMF tones were also used by cable television broadcasters to indicate the start and stop times of local commercial insertion points during station breaks for the benefit of cable companies.

There are various method employed to " cast on ," such as the " thumb method " ( also known as " slingshot " or " long-tail " cast-ons ), where the stitches are created by a series of loops that will, when knitted, give a very loose edge ideal for " picking up stitches " and knitting a border ; the " double needle method " ( also known as " knit-on " or " cable cast-on "), whereby each loop placed on the needle is then " knitted on ," which produces a firmer edge ideal on its own as a border ; and many more.

The floppy drives used the old-fashioned method of selecting the drive number with jumpers instead of the IBM cable twist.

Oliver E. Buckley, along with his colleagues at Bell Labs, H. D. Arnold and Elmen, c. 1915 proposed a method of constructing submarine cable using permalloy tape wrapped around the copper conductors.

ATSC and DVB-T specify the modulation used for over-the-air digital television ; by comparison, QAM is the modulation method used for cable.

In larger installations each band and polarization is given its own cable, so there are 4 cables from the LNB to a switching matrix, which allows the connection of multiple receivers in a star topology using the same signalling method as in a single receiver installation.

Aside from transmission by high-flying planes moving in a loop using a system developed by Westinghouse called Stratovision, there was virtually no other method of television delivery until the 1950s with the beginnings of cable television, or community antenna television ( CATV ).

Broadband Radio Service ( BRS ) formerly known as Multichannel Multipoint Distribution Service ( MMDS ), also known as Wireless Cable, is a wireless telecommunications technology, used for general-purpose broadband networking or, more commonly, as an alternative method of cable television programming reception.

The method uses a silver-and flux-containing brazing pin which is melted down in the eye of a cable lug.

*** Escape method: The pair lock elbows and brace their backs against each other to walk up the smokestack to the top opening and slide down a support cable safely to the ground.

One method of measuring these currents is to put a small current-measuring resistor in series with the sample and then view the generated voltage on an oscilloscope via a matched coaxial cable.

While this method may be useful to detect some issues in switchgear and surface tracking on internal components, the sensitivity is not likely to be sufficient to detect issues within solid dielectric cable systems.

As a method of in-band signaling, DTMF tones were also used by cable television broadcasters to indicate the start and stop times of local insertion points during station breaks for the benefit of cable companies.

One apparent advantage of the cable car is its relative energy efficiency, because of the economy of centrally located power stations, and the ability of descending cars to transfer energy to ascending cars.

A funicular, also known as an inclined plane or cliff railway, is a cable railway in which a cable attached to a pair of tram-like vehicles on rails moves them up and down a steep slope ; the ascending and descending vehicles counterbalance each other.

The cable was severed and 20 people in the cabin descending from Cermis plunged over to their deaths.

In 1816, taking advantage of the Allied occupying force, a mob of men and horses had attached a cable to the neck of the statue of Napoleon atop the column, but it had refused to budge-one woman quipped " If the Emperor is as solid on his throne as this statue is on its column, he's nowhere near descending the throne ".

On several occasions reports of chain / cable breakage were recorded and descending loaded waggons crashed into Buxton Road Bridge at the foot of the plane.