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Sand-line sheave
Diamond Glossary (алмазы и бриллианты - глоссарий терминологии) |
The sheave in the crown block over which the sand line runs.
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Sand-line drum, английский
The hoist drum upon which a sand line is wound.
Sheave, английский
- Grooved wheel or pulley (22).
- A wheel, complete with arm or frame, suspended from structures to permit stringing of fiber optic cables. the sheaves must be lined with urethane or neoprene and have a diameter as required in specifications for each type of cable being installed for normal vertical suspension points
- Ролик, шкив, бобина, катушка, шпулька,
- Блок
- The wheel inside a block or fitting over which the line runs freely.
- Шкив
- The wheel on which the rope works in a block; it is generally formed of lignum vit?, sometimes of brass, and frequently of both; the interior part, or that which sustains the friction against the pin, being of brass, let into the exterior, which is of lignum vit?, and is then termed a sheave with a brass coak, bouche, or bush. the name also applies to a cylindrical wheel made of hard wood, movable round a stout pin as its axis; it is let through the side and chess-trees for leading the tacks and sheets. also, the number of tiers in coiling cables and hawsers.
- The grooved wheel in a block, over which the fall (rope, wire or chain) is led (pronounced “shiv”).
- A wheel, grooved around its circumference, that guides and supports a cable or rope between the load and the hoisting engine.
- Шкив; блок, ролик 505 sheave
- The grooved part of a block through which a line runs.
Sheave block, английский
An assembly consisting of a pulley wheel, side plates, shaft, and bearings over which a cable or rope is passed; a pulley block.
Sheave wheel, английский
Sheave
Sheave-linkage system, английский
Рычажная система блоков (талевого каната)
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Hanging sheave, английский
The sheave or pulley wheel hooked to and suspended from the drill tripod clevis and over which the drill hoist line runs.
Random pattern, английский
The setting of diamonds in a bit crown without regard to a geometric pattern— without regular and even spacing. also called random set.
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