winch


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winch

1. a windlass driven by a hand- or power-operated crank
2. a hand- or power-operated crank by which a machine is driven
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

winch

[winch]
(mechanical engineering)
A machine having a drum on which to coil a rope, cable, or chain for hauling, pulling, or hoisting.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

winch

A machine for pulling or lifting heavy weights. It has a rotating drum around which a pulling line or rope is turned; a hoist, 2.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Winch

(also hoist or windlass), a machine for moving loads by means of a flexible element (a cable or chain). Tractive force is transmitted to the flexible element from a drum or sprocket driven by connecting mechanisms.

Winches are divided into stationary and mobile types, with manual and machine drives (electric motors, internal-combustion engines, and less frequently steam, hydraulic, or pneumatic power units). The connecting mechanisms may consist of gear or worm-gear trains (usually in reduction gears), friction or belt drives, and combinations of them. A drum hoist operates on the principle of a simple winch but differs in that it has connecting mechanisms. In chain hoists the tractive force is applied to a chain by a rotating sprocket. Lever winches are also used. When the drive lever is rocked back and forth, the cable is alternately gripped by two clamps and forced through the traction (lever) mechanism. The tractive force (load-carrying capacity) of the winches regulated by GOST (All-Union State Standard) ranges from 2.5 to 200 kilonewtons (0.25 to 20 tons).

Winches are used as independent machines to perform loading-unloading, construction, assembly, repair, and warehousing operations; they are also used to shunt rolling stock, to skid timber, to stack wood, and to berth vessels and raise anchors (capstans and windlasses), and also as a part of excavating and road machines, cranes, pile drivers, cableways, draglines, and drilling rigs.

REFERENCES

Sredstva maloi mekhanizatsii dlia pogruzochno-razgruzochnykh i transportnykh rabot. Compiled by M. A. Preobrazhenskii. Moscow, 1959.
Bazanov, A. F. Pod”emno-transportnye mashiny. Moscow, 1969.

E. M. STARIKOV

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Once all the refurbished and replaced parts were installed, ACE Winches tested and commissioned the winch to ensure its continued safe operation.
Ace upgrade for winch; OIL AND GAS
The product features an industry first removable clutch lever and amber LED winch spool light strip.
Quadratec Essentials launches new Q-Performance Series Stealth Winch
"The intent was to design a winch that would be permanently installed and never need to be replaced," said Joe Holman, a mechanical engineer with the cargo team and lead on the winch project.
WINCH HUNT: While trying to cut costs for the CH-53K King Stallion, the Marine Corps' new heavy-lift helicopter platform, the H-53 program office found an obvious solution--the aircraft's cargo winch, which was set to cost 350,000ドル each
"They have been trying to winch the 4x4 forward on to firmer ground using boulders as an anchor.
Moorland rescue mission descended into a farce ... A FORD FIESTA WHICH PLUNGED 650FT DOWN A RAVINE HAS BEEN RETRIEVED - ONLY FOR THE 4X4 USED TO RESCUE IT GETTING STUCK INSTEAD
Prior to the acquisition, Byotrol was supplying Winch Pharma with all its hand sanitising products, which were repackaged under the Athenian brand.
Byotrol Acquires UK Sanitary Products Firm Winch Pharma Consumer Healthcare
The JP Warrior Winch also has full float heavy-duty planetary gearing for fast and fluid operation.
Canadian Company First to Distribute Military Grade Winches to Industrial Sector
The MAIB said that Mr Jones had become entangled on the starboard warping drum of the winch as he attempted to recover his dredge gear on board on the morning of March 30, 2014, three miles north-east of Port Dinllaen in North Wales.
Unsafe winch caused death of dredger skipper, 36
Winch cable is offered in a variety of lengths and diameters, and downriggers are offered in 5-foot and 10-foot versions.
HammerHead launches new HydroGuide HG375 winch
When you're finished with recovery operations, be sure to leave a little slack in the winch cable.
Pulleys need TLC, too
The Spinlock Winch Feeder is an effective way to use non-aligned winches for multiple halyards.
Decked out
Winch, a bronze medallist in the triples at the Delhi 2010, bowed out at the quarter-nal stage of the fours on Saturday, England's trio being beaten by South Africa in the nal end.
Winch using fours flop as motivation; Second chance after knock-out blow

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