An Account of the Bell Rock Light-House: Including the Details of the Erection and Peculiar Structure of That Edifice; to Which Is Prefixed a Historical View of the Institution and Progress of the Northern Light-HousesStevenson, Robert
History
An Account of the Bell Rock Light-House: Including the Details of the Erection and Peculiar Structure of That Edifice; to Which Is Prefixed a Historical View of the Institution and Progress of the Northern Light-Houses
Stevenson, Robert
Bell Rock Lighthouse (Scotland); Lighthouses -- Scotland
The Smeaton had arrived from Arbroath in the course of the last night,
and made fast to her moorings at the eastern buoy, which was nearest
to the rock, as will be seen from Plate V. Agreeably to appointment,
she had brought off six blocks of granite, for the purpose of making an
experiment regarding the landing of the stones on the rock. She also
had in tow the praam, or decked boat, brought from Leith astern of the
Pharos, of which mention has already been made. This boat, in smooth
water, could carry about six or seven tons upon deck.
[Sidenote: Various suggestions about landing the stones.]
The writer had looked forward to the trial of landing weighty materials
upon the rock, as a matter which was to determine an important point
in the operations of the Bell Rock light-house, and which could hardly
be resolved by any other means than actual trial. This part of the
operation had always been a matter of the greatest uncertainty with
those conversant in such matters, and it became essential to determine
the point at this period, by actual trial, before proceeding to the
preparation of the craft and apparatus requisite for the works of next
season, which it would not have been safe or prudent to rest upon
doubtful hypothesis. In speculating upon this point, some had suggested
that each particular stone should be floated to the rock, with a
cork-buoy attached to it, while others would convert the float into an
air-tank for this purpose; a third proposed to sail over the rock at
high water, in a vessel of a flat construction, and drop the stones
one after another, while under way, or at anchor on the rock. Others
took up a still more extraordinary view of the case, and proposed to
build so much of the Light-house ashore, in a kind of coffer-dam or
vessel, as would raise the building to the level of the highest tide,
and having previously prepared the rock for its reception, they would
scuttle the vessel, and settle this ponderous mass, weighing perhaps
1000 tons, at once upon the rock. But it were endless to follow the
various conceptions, even of men of experience, upon subjects of this
kind. Though some of these propositions were ingeniously conceived, yet
they could not be carried into effect in such a situation as the Bell
Rock. Taking into view the uncertain state of the weather, the brittle
nature of stone, when worked to a delicate edge and formed into angular
points,--and, above all, considering the disadvantages that would
attend the loss, even of a single stone, by the unavoidable delay it
would occasion to the work, which might even in some instances hazard
a great part of the building,--the writer judged it safest to keep the
vessels that were to bring the stones from the workyard at moorings,
laid down at a convenient distance from the rock, so as to enable them
to clear it, in case of drifting. He also determined, as the safest
method, that their cargoes should be unloaded at these moorings, laid
Public-domain text, read in full here on John Shaqi.
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