How to lower ships' boats, a treatise on the dangers and defects in the system at present in use, and their remedy. Also a description of an improved block, to be used for reducing and regulating strain, in lowering heavy bodies1855 |
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How to Lower Ships' Boats, a Treatise on the Dangers and Defects in the ... Charles Clifford Pré-visualização indisponível - 2016 |
Palavras e frases frequentes
Adelaide Amazon barrel a length Birkenhead Boat canting boat descends boat lowered boat's seat boats were useless boatswain centre sheave cleet davits descent desiderata wanting throughout disengages the boat disengaging the tackles drowned Duke of Wellington emigrant ship John entire operation especially if affrighted exertion and experi falls overboard fastened Fore-Tackle go the rope harrowing recitals hole hooked lanyard lashing or gripe let go lip piece locking pin loss LOWER SHIPS lower the boat lowered without accident lowering boats evenly means of escape middle sheave passed pleaded its helpless present system prongs Queen Victoria reach the water ready for lowering recitals of shipwrecks remedy roller rope d ropes c d ropes or pennants sailor self-acting shell shewn shews the boat ship's gripe ship's side shows a section slackens strain thimble k k thimble or ring three sheaves turn unfasten unhitched unhooked unlashing yard or spar
Passagens conhecidas
Página 7 - All received their orders, and had them carried out, as if the men were embarking, instead of going to the bottom ; there was only this difference, that I never saw any embarkation conducted with so little noise and confusion.
Página 25 - ... notwithstanding the character of the boats, notwithstanding any inspection by the Government, the appliances for using those boats, and getting them into the water, are so essentially bad, that they have been condemned in an Official Report to Parliament in February, 1852, in the following words : " The means of lowering boats evenly, and of readily disengaging the tackles, together with plugs which are self-acting, are desiderata wanting throughout the naval service, and that it may be expected...
Página 13 - The unlashing, lowering, and disengaging are all done by one man only in the boat, whose simple weight, irrespective of any additional assistance whatever, is made to hold in equilibrium the weight or descending momentum of the boat with its entire crew, which he has thus the power to check or control at will. Each separate operation is the natural consequence of one act (slacking off a rope), and they are also necessary sequents, one of the other.
Página 15 - ... as follows : One man in the boat unhitches a rope from a cleet (on the boat's seat) over which he slackens it off. The boat descends levelly, both laterally and longitudinally, frees itself from the gripes, by which it was firmly lashed to the ship's side (if there is not time to unfasten them), and letting go the rope disengages the boat from the ship. The lowering may be effected as well from one as two davits, or from a yard or spar, and with any degree of velocity, which can be checked at...
Página 15 - The uulashing, lowering, and disengaging are done by one man only in the boat, whose simple weight is made to hold in equilibrium the weight or descending momentum of the boat with its entire crew, which he has thus the power to chock or control at will. The process is as follows : One man in the boat unhitches a rope from a cleet (on the boat's seat) over which he slackens it off. The boat descends levelly, both laterally and longitudinally, frees itself from the gripes, by which it was firmly lashed...
Página 26 - ... single yard or spar, and from any height, with a vessel going at any speed. There are others who have plans and inventions besides myself, but let all these be subjected to the practical test I call for. Let emulation stimulate to further exertion, and experiment and success must follow. The sailor may then, knowing that he has a certain means of escape from his ship when she will no longer hold together, stay by her to the last, and not, as in the case of the John, leave her at the first chance,...
Página 25 - In the winter of 1851 the Parliamentary committee appointed to inquire into the cause of the loss of the Amazon, reported among other results of their investigations, that " the means of lowering boats evenly and of readily disengaging the tackles, together with plugs, which are self-acting, are desiderata wanting throughout the naval service," and they go on to say, " that it may be expected some useful means of supplying these defects will be devised.
Página 26 - Jokn, leave her at the first chance, when alone there is a probability of his doing so in safety. The harrowing recitals of shipwrecks will then lose some of their horrors, and rescued humanity will turn to you as the advocate that pleaded its helpless cause.
Página 13 - ... irrespective of any additional assistance whatever, is made to hold in equilibrium the weight or descending momentum of the boat with its entire crew, which he has thus the power to check or control at will. Each separate operation is the natural consequence of one act (slacking off a rope), and they are all necessary sequents one of the other. The means of reducing the weight of the boat to that of the man lowering is also made the means for preventing the boat canting in its descent, and the...
Página 25 - ... preventing their filling with water, and for releasing them effectually from the vessel to which they belong in times of emergency, which were described, Mechanics' Magazine, vol. lix., p. 334, has recently written to the Times as follows: — " In the winter of 1851 the Parliamentary committee appointed to inquire into the cause of the loss of the Amazon, reported, among other resulls of (heir investigations, that 'the means of lowering boats evenly and of readily disengaging the tackles, together...