modern seamanship1921 |
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Página 40
... lifts , guys , etc. It is used also for running gear in special cases where exposure to weather is involved and where the sheaves are large ; as in single pendants and in the slow - running tackles of cranes . Wire hawsers are always ...
... lifts , guys , etc. It is used also for running gear in special cases where exposure to weather is involved and where the sheaves are large ; as in single pendants and in the slow - running tackles of cranes . Wire hawsers are always ...
Página 41
... lifts , etc. It may be used over sheaves of large diameter where the speed is moderate , but has not the flexibility required for running rigging in general . This type is issued to the Navy both galvanized and ungalvanized . 6 X 37 ...
... lifts , etc. It may be used over sheaves of large diameter where the speed is moderate , but has not the flexibility required for running rigging in general . This type is issued to the Navy both galvanized and ungalvanized . 6 X 37 ...
Página 68
... lift from the masthead . The forces acting here are the downward pull of the weight , the tension on the lift , and the resistance of the boom to compression ( Fig . 2 , Plate 28 ) . As the point o remains at rest , these forces must ...
... lift from the masthead . The forces acting here are the downward pull of the weight , the tension on the lift , and the resistance of the boom to compression ( Fig . 2 , Plate 28 ) . As the point o remains at rest , these forces must ...
Página 69
... lift - 22 feet Tension on lift Length of lift - 22 % Weight Length of mast 30 Tension on lift - 634 tons 15 feet 41/2 Resistance of Boom Fig . 1 9 tons Weight Tensiun on Top Thrust on Mast 11 tons Tension on Topping lift Weight Fig . 5 ...
... lift - 22 feet Tension on lift Length of lift - 22 % Weight Length of mast 30 Tension on lift - 634 tons 15 feet 41/2 Resistance of Boom Fig . 1 9 tons Weight Tensiun on Top Thrust on Mast 11 tons Tension on Topping lift Weight Fig . 5 ...
Página 70
... lift , as follows : For a fixed length of mast and boom , we cannot change the thrust on the boom by any change in its angle ; but we may vary the tension on the topping - lift within wide limits . Since this tension depends upon the ...
... lift , as follows : For a fixed length of mast and boom , we cannot change the thrust on the boom by any change in its angle ; but we may vary the tension on the topping - lift within wide limits . Since this tension depends upon the ...
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Términos y frases comunes
abaft Air Tanks anchor battleships beam Bend bight Blackwall Hitch block boat boiler boom Bowline buoyancy cable Carrick Bend carry clear compass connected convenient course danger davits deck diameter dip-rope distance engines fathoms feet fibres Figure-of-Eight Knot force forward gear going ahead halyards handling hauling hawse hawse-pipe hawser head heavy helm hemp Hitch hoisting hook inches keel knots lashed launch length let go lift lower manila Manila Hemp mast mooring MOTOR LIFE BOAT oars Overhand Knot Plate port practice pump riding Rowlock rudder rules running Running Bowline sail screw secured shackle shaft sheave ship ship's side signals slack small-stuff spar speed splice starboard steam steam-vessel steamer steering stern stopper strands surf swing swivel tackle tension tons topping-lift towing turn United States Navy unshackled usually vessel weight white light wind windlass wire rope yard
Pasajes populares
Página 358 - Every vessel coming up with another vessel from any direction more than two points abaft her beam — that is, in such a position, with reference to the vessel which she is overtaking that at night she would be unable to see either of that vessel's side lights — shall be deemed to be an overtaking vessel...
Página 347 - When two sailing vessels are approaching one another, so as to involve risk of collision, one of them shall keep out of the way of the other as follows, viz.
Página 311 - ... points of the compass, so fixed as to throw the light from right ahead to two points abaft the beam on...
Página 349 - This article only applies to cases where vessels are meeting end on, or nearly end on, in such a manner as to involve risk of collision...
Página 376 - War in pursuance of the provisions of the said section eleven, shall be deemed guilty of a misdemeanor, and on conviction thereof shall be punished by a fine not exceeding twenty-five hundred dollars nor less than five hundred dollars, or by imprisonment (in the case of a natural person), not exceeding one year, or by both such punishments, in the discretion of the court.
Página 338 - ... (v) A vessel when towing, a vessel engaged in laying or in picking up a submarine cable or navigation mark, and a vessel under way which is unable to get out of the way of an approaching vessel through being not under command or unable to manoeuvre as required by these Rules...
Página 365 - When a vessel is in distress and requires assistance from other vessels or from the shore the following shall be the signals to be used or displayed by her, either together or separately, namely: In the daytime: First.
Página 348 - ... other; in other words, to cases in which by day each vessel sees the masts of the other in a line or nearly in...
Página 330 - Sailing vessels and boats of less than 20 tons gross tonnage shall not be obliged to give the above-mentioned signals; but if they do not, they shall make some other efficient sound signal at intervals of not more than one minute.
Página 357 - Where by any of these rules one of two vessels is to keep out of the way, the other shall keep her course and speed.