Deck equipment — winches, capstans, windlasses

USCG Boatswain Manual Ch. 4 §4.1

Deck Safety Deck PPE includes hardhat in cargo or rigging operations, ANSI-rated work boots with non-slip soles, high-visibility vest, gloves appropriate to the task (cut-resistant for wire, leather for line), and hearing protection where engine or compressor noise exceeds 85 dB.

46 CFR §111.25-15

§ 111.25-15 -15 Duty cycle. Each motor must be rated for continuous duty, except a motor for an application listed in Table 111.25-15 or a similar duty must meet the minimum short-time rating stated in the table. Table 111.25-15 Application of motor | Minimum short-time rating of motor, in hours Deck winch and direct acting capstan | Half. Deck winch with hydraulic transmission | Continuous at no load followed by⁄hr. at full load. Direct acting windlass | One fourth. Windlass with hydraulic transmission | Half hour idle pump operation, followed by⁄hr. full load operation. Steering gear, direct acting | One. Steering gear, indirect drive | Continuous operation at 15 pct. load followed by 1 hr. at full load. Watertight door operators | ⁄. Boat winches | ⁄.

46 CFR §177.900

Deck rails. (a) Except as otherwise provided in this section, rails or equivalent protection must be installed near the periphery of all decks of a vessel accessible to passengers or crew. Equivalent protection may include lifelines, wire rope, chains, and bulwarks, which provide strength and support equivalent to fixed rails. Deck rails must include a top rail with the minimum height required by this section, and lower courses or equivalent protection as required by this section. (b) Deck rails must be designed and constructed to withstand a point load of 91 kilograms (200 pounds) applied at any point in any direction, and a uniform load of 74 kilograms per meter (50 pounds per foot) applied to the top rail in any direction. The point and uniform loads do not need to be applied simultan…

46 CFR §182.220

Installations. (a) Except as otherwise provided in this section, propulsion machinery installations must comply with the provisions of this part. (b) The requirements for machinery and boilers for steam and electrically propelled vessels are contained in applicable regulations in subchapter F (Marine Engineering) and subchapter J (Electrical Engineering) of this chapter. (c) Propulsion machinery of an unusual type for small passenger vessels must be given separate consideration and is subject to such requirements as determined necessary by the cognizant OCMI. These unusual types of propulsion machinery include: (1) Gas turbine machinery installations; (2) Air screws; (3) Hydraulic jets; and (4) Machinery installations using lift devices.

NAVEDTRA 14067 §4-1

Deck fittings and line-handling safety Deck fittings are the fixed points to which lines are led and made fast. Bitts are paired vertical posts (usually welded to the deck) around which mooring and towing lines are figure-eighted and secured; cleats are horn-shaped fittings for smaller lines; chocks are fairleads (open, closed, or roller) through which a line passes over the side, changing its lead without a sharp bend and protecting it from the deck edge; bollards are the shoreside posts a ship's eye is dropped over. A line is "made fast" to bitts by taking a round turn on the after bitt then figure-eights across both bitts, finished so it can be surged or slipped. To surge a line is to let it slip around the bitts or a warping head in a controlled way, taking the strain gradually. The g…

NAVEDTRA 14104 Ch. 10 — Anchor Windlasses

In a typical electrohydraulic mechanism, one c o n s t a n t - s p e e d e l e c t r i c m o t o r d r i v e s t w o variable-stroke pumps through a coupling and reduction gear. Other installations include two motors, one for driving each pump. Each pump normally drives one wildcat. However, if you use a three-way plug cock-type valve, either pump may drive either of the two wildcats. The hydraulic motors drive the wildcat shafts with a multiple-spur gearing and a locking head. The locking head allows you to disconnect the wildcat shaft and permits free operation of the wildcat, as when dropping anchor. Each windlass pump is controlled either from the weather deck or locally. The controls are handwheels on shafting that lead to the pump control. The hydraulic system requires your attention…