US111833A - Improvement in tackles for hoisting sails - Google Patents

Description

figs 1 and 2.

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osWEeo;NEW Youn Letters PatentNo. 111,833, dated February 14, 1871.

IMPROVEMENT IN TACKLES FOR HO-ISTINGSAILS.l

The Schedule referred 4to in these Letters 'Patentand makingpart of the same.

Be it known that I, GEORGE A. FORD, of the city and county of Oswego, in theState of New York, have invented certain new and 'useful Improvements in Halliards for Raising Sails of Vessels; and do hereby declare that the following is a fulland exact dcscription thereof, reference bcinghad to the accompanying drawing making a part of this specification, in which- Figure lis a side elevation of a mast and a sail upon the same pulley, hoisted, with my halliards in position;

' ,Figure 2, Aa front elevation ofthe same; and

Figure 3, a side elevation of a mast and a sail upon the same, half raised, with the halliards rigged in the usual way,

Like letters .of like kinds denote similar parts in each figure.

The nature of my invention relates to an improved method for raising sails, particularly the heavy foreand-aft sails used upon vessels ynavigatingv the great lakes, so that the same may-be done with fewermen, may be more durable, and less expensive; and

It' consists in the peculiar combination of blocks and ropes, with a runner of steel, iron, or hemp-rope, crmetal chain, all arranged as more fully hereinafter described and set forth.

In the drawing- A `represents the mast.

a, the head of the mast.

l1, the trestle-tree.

B, the gaff.

c, the throat of the same.

'0., the deck of the vessel.

D, the peak-runner, and

D', its runner-block.

d, the pennant, to which the saine is attached.

E E, the blocks attached to the mast-head, through which the peak-runner is iovc.

F l, the peak-halliards.

G G, the upper, and

vH H, the lower purchase-blocks to the saine.-

l, the throat-runner block. i

J, the block attached to after part of the trestletree, through whichthc tl'n'oat-rulnier is rove.

K, thc throat-runner. f L L, the throat-halliards.

M M, the upper blocks, and N N, the lower blocks of the same, all a, shown in In fig. 3, A represents the mast. a', the head of the same.

t', the trestle-trees.

B', the gait.

c', the throatot' the same, and

C', the deck ofthe vessel.

O, the peak-halliards.

ltothe pennant, one end of which is secured to the outer end ofthe ga" B, and the-other end to :L -point inside ofthe same, at a suitable distance. Each end of the runner is then rovethrough a i single block, E, attached to the masthead', and terminates, when the sail is hoisted, at a point nearthe deck of the vessel.

'loone end of this runner a double block, G, is atl tached, through which the peak-halliard F is rove, passing also through another double block, H, attached to the main rail, or to the deck at the side of the vessel.

The other eddof the runner has a similar purchase i arranged in the ysame way, except that the lower block in opposite directions through the double block J,

attached to the after part ot'` the trestle-tree, and also arranged athwart ship, and the ends brought downl toward the deck, wherethey are attached to the upper halliard blocks M M, which` have' the hal` liards L rove through them, and through the lower 'blocks N N, attached to thedeck vnear the foot of the mast.

.As in the instance of.' the peak`halliards, one of the lower blocks for Athe throat-halliards should be a single block.

The blocks D and I, and the blocks -E E and J, through which the'rnnners arerove, shonld be blocks with largerand thinner sheaves than those usually employed insuch' places.

In the'oldmethod, shownlin iig. 3, one end of the peak-halliard O, passing up from the deck where the other "end was fastened, was rove through one oi' the mast-head blocks Q, then through one of the peakblocksP, then-through another of the blocks Q, and

another of the blocks P, and through a third block, v Q, and athird block, P, all being single blocks, and

then brought down toward the deck, where ,it had attached to it a purchase of a .double block, 1t, and a single block, Si

' Likewise the throathalliard T was carried up from the deck where one end of it was made fast, and rove through a treble block, V, secured yto the after part of the trestle-tree b', and through a double block, U,

attached to the throat c', and the eud brought down vtoward the doch-where it was attacl'ied to apurchase double block, W, and single block X in the sarnemanner-as the peak-halliards. s AIn the use of my' method of rigffiug the halliards .thejsailisiilst hoisted a large part of the distance `with the donblean'd single purchase, andthe hoisting is completed and the sail tautenedup bythe use of Y the'two double purchases:

In the old method the sail is hoisted a large portion .of the distance by the use ofthe single fall of the particularly -in such places as come within the blocksv when the sail was hoistedf'aud also in the 'great expense of a Very large and long rope.

With the old arrangement of blocks a wire or tarred rope, or chain cannot be used, because, 'by' ther great number of sheaves, aud the frequent bendsof the rope, the friction would be too great, and such a rope or chain` could not berlia'ndle'd or hauled upon at all seasons of the year-Hand could not be coiled. away conveniently or safel In my method the liunncr is very durable, and with its blocks doesuot give so much'weight aloft as the old rig, and, taken in connection with the small size of the rope required for ha11iai'ds,my Irig does not cost over two-thirds as much as the old rig.

vtio'n of the drawing.

Having thus set out the nature, description, and merits oi." my invention, What I claim therein as'new is-` D', E E, Gr G, and H H, and the halliards ll F,- all constructed, arranged, and operated as described and shown, for the .purposes set forth.

2. The combination ruid'arrangeuient of the' devices 1M M, and N N, and the halliards F F'and LL, all coustructedand operated substantially as describedv and shown, for thepurposesset forth.

GJM):` A. FORD.

Witnesses v N. J. VANDER WEYDE, GILMAN P. BRIGGS.

My purchase has the advantage over the old method of having vgreater poner,l as may be seen on inspee 1. The combination of the .runner `]),;t'hevblocks' employed for-raising,'fore-and-aft sails, "consisting of the runnen-s1) and K, the blocks D', E E, G- G, HTI,-

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