The Eighth Improvement
Consists in equipping ships and other vessels with two new sails, or what I
believe to be two new sails, one of which sails, called by me a
"Courson," is a substitute for the square sail or course now bent
to or hoisted up to lower yards -- and the other sail, which I call a
"Triangle," is a substitute for the trapezium-shaped sails now used
. . .
Consists in making the yard of a ship or vessel out of two small spars instead
of one large spar -- which I do by uniting the two small spars together
at their butts or largest ends, by a hollow wrought-iron cylinder and a wood
dowell fixed to the large ends of the two spars.
. . .
Shipwreck and Collisions at Sea greatly prevented by Christophers' Patent Improvements in Naval Archtecture. With four plates.
London: J. Olliver, 59, Pall Mall; P. Richardson, 23, Cornhill. Liverpool: Deighton & Laughton. M.DCCC.L. 8vo, (4), 112 p, 4 pl.
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Copyright © 1996 Lars Bruzelius