US1470064A - Log raft - Google Patents

Description

oct. 9,1923. y 1,470,664

G. G. DAVIS ET AL LOG RAFT Filed March 20, 1923 alfa" @A WA.. a5 v IN vE/vro RS G/L BE R r. G. DAV/5 MATT/1E w. d DAV/s AlrToRNEYs Patented Oct. 9, 1923.

UNITED ,smilies MM Guess? G- Devis el@ -MATsHEW J.

Tr ,oFF-1on1 @Anis QF VANCOUVER; BRITISI# COLUMBIA; ,onNsDA I' l I .Los aus.

:Appli-aannames 2o, 1923.' serial Np. 626,355,

Tp all whom t may concem qBe it -k-noWn that We, 'GILBERT DAVIS and MATTHEW J. DAVIS, both residents of age-or los'sof logs therefrom, ay further' ob-l jectbein'g toprovide a means Wlierebvwthe raft becomes inore tightlyv bonnd duri-ngthe process ofitowing it through the seasfthan is possible when'A constructingthe rafteither iofn a launching cradle or in the Water, and' also to provide a. fastening-for the' chain bindings -W'hich Wi-ll admit fof fthe 'readily :broken upfwvhen desir-ed.

'ouiq invention' Consists essentially for :a

raftfiloor having ski-derboomsand upon VVWhich floor tiers off logs are."placed.l v'and bound,l and ga' paifsf @stresse-keeps@@para @which vbinding ropes are attached .for encoinpassing the superimposed t1ers,and means -for iinp'arting end vviseinovenient of the'- centre; sticks yone towards the other afs-the vrait is bein'gftowed, to-effectya :tightening oflfthe binding ropesfattached thereto, as Willjbe more `-fully' licatiovn," in which lfis across scetio-nal Y the line f 1-..-'1 ,of :Fig:

view taken on FigjZg-is across-sectional view Vtaken 'fon the" 1linef2-2 ;ef*Fig. 3.

isasection'al planvievv showing the' towing lines.

arrangement of the centre sticks and the 4 is a view `of -therchai'n binding clip.'

.Iii thedravvivngs like characters ofreferligure.

' ividely spaced 'tier'l and over'the opposite 'sideboormthe lother passing under' the side aboolns 2 and. V

-tudfinallyof the raft and spaced t'an appreciable "distane apart V(see Fig. @3),fthese '--sticksfwill preferably (bev laid with .Ath-sir* smallerends directed `llto the longitudinal fcentre of the raft, atthe inner end of eachy 1of' the centresticks l0 v` is' attached r a block `-lk1f(seefFig. 3) thepurpose of vvhiehvvill "hereina'ftefrappear". 1 i' "-fThe inuneal4 112 indioatesla further block "described v'in'. the following specience indicate",corresponding partsin each?! A Y, n

`by Whichthelr'aftfisattachedtovaitugra'nd- With a Yview. to f more Clearly V,showing"the` frnanner in which the raft is `c'onstI-'ucted, and' bound 'tclgfevtheI, the-logsN and bindings4 are 'n transverse plane, though in practice these are distributed throughout the length of the raft. y i

Thenumeralwl, (see'F'ig. l) indicates .a s

tier" oflogs orrning a yfloor to thera'ft.

Vindicates a `pair of side booins Which may be ormedo a rovv'of singlelogs in alignment -With each other andfbound'together f end'tomend, or ornied `of sets ',ofthree logs is-shown, such sets of logs being in 'alignin-entthroughout the length oitl the boom, `the Aend jointsfbeingbrokenjor lapped as shown -in'F ig. 3. indicates a pair of cables one passing over one side boom/2,*under the-Hoor over the -'oor tier'l, the endsof thelcables 3v being dra-Wn tightly' together .and suitably.y fastened. Vl,-,f, f? and 8 indicateftierfs of 'logs-laid successively above the' -tier'l to logs of each-ofthev respective tiers. f

I.The nuIneralfQis 'a cable overlyingthe Cates 'a'pa'ir 'of centresticks'.disposed1longiattached tothe outer end of' one of the een- Y tre sticks l0 adjacent theiforvvard end of `the rait. ll-Sfindlicates a pair ofcables. onexend of eachbei-ng secured to a shackle 14,;the'o-p# posits V ends`"being each -s'ecured'zto'the torn Ward fendolfa side bo'omQ.' 1 lis a tow line jupon the Souterx'end of which a .blocklf is attached. 17 is a -urthen cable having ,ofner' i endseured-'to the shacklel )A fromvvhence if fis' passed-through the blocks:y 16,1- 12, and :ll

Qs'befving shown" `in afsingle respective ly-,to obtain the desi-red purchase,

non opposite sides ofthe raft pendingthe building up Yolf thefu-rt'her tiers. v10 nindi while its opposite end is secured adjacent the block 11 of the after centre stick'lO.v

A plurality of cables indicated by the numeral 18 are looped at their inner endsabout the centre sticks, their free ends passing under tier up on the inner side of the side. logs 5a and laid out bending the laying of the further tiers. V e may prefer to pass each of the cables 18 outwardly of they raft under a side boom 2 and from thence over the raft to be ultimately attached to the opposite side boom 2. 19 and 2O are further cables laid between the tiers 5 and 6, and 6 and 7, which are laid out in a manner' similar to those before mentioned. Simultaneously with the building up of the several tiers of logs and the laying of the cables therebetween we lay a plurality of chains 21, 21fL and 21h, one above the `other underf the vfloor tier 1 and betweenl dierenttiers of logs adjacent the forward and afterv ends of the raft, as shown in Fig. 2, the ends of each tier being fastened outside the raft tothe chain above it by clips 23, the topinost chain 21b having its ends brought lup over the top tier of logs and fastened together with a clin 23. 22 are further chains having an eye at one end which is connected to the lowermost. chain 21 and is passed tightly around a side boom 2 and is clipped at its Y upper end to the chain 21a. Vhen the several tiers of logs are laid up the free vends .of the cables 9, 18, 19 and 2O are passed over ythe top of the raft in opposite directions and are passed around the side. booms 2 and suitably clipped upon themselves.

ythe shackle 26 having offset legs 2q? to Lfit outside the legs 25, the legs of the- The numeral 23 indicates, in general, a clip shown in detail in Fig. 4, by which the chains are fastened to each other which consists of a pair of shacklesl 24 and 26 formed by bending a. pieceof metal back upon itself, the shackle 24 having straight leofs 25, and adapted shackles 24 and 26 are spaced apart-a dis-- tance slightly greater than the material used in forming the chain links to be clipped.

1 28 are slots through both legs of each shackle in which a bolt 29 is inserted to ing strain of thetug o-n the tow line 15 is transmitted to the side booms 2 through the line 13 and also to the inner ends of the centre sticks 10 through the line 17 tending to draw the sticks 10 endwise towards each other, any such movement of the centre sticks will simultaneously draw the looped ends `of the ropes 18 `towards the longitudinal centre of the raft thereby effecting an Vincreasing binding strain upon all the logs that they each encompass. The centre sticks being tapered-will on being -drawn inwardly byy the towing action impose a wedging strain upon the logs forming the raft, thus further tightening the several bindings around the raft.

When the raft is to be broken up it suffices to withdraw the bolts 29 from the clips 23 and disconnect the several cables,

`when the raft will spread apart allowing the logsto come vto restv in the water.

`Vhat we claim as our invention is:

1. In a log raft, av raft oor havingside booms to which the floor is connected, logs arranged'in tiers upon the floor, binding ropes underlying the tiers the ends of which pass over the top ofthe raft and are secured. r

to the side booms, l

2. In a logl raft, a raftfloor havingside booms to which the flooris connected, logs arranged'in-tiers upon the floor, binding chain being connected to the next chain above and the ends of the topmost chain being connected together on the top of the raft.; Y

chains underlying the tiers the ends of .one i 3. In a log raft-,a raft floorhaving side y lbooms to which the floor is connected, logs arranged in tiers upon .the floor, binding chains underlying the tiers, each chain being connected adjacent the ends to: the next chain above, the ends of the topmost chain 'being connected together on the top of the raftand chain connections between the raft and the side booms.

4. In a lografta laid up one above t the raft, a longitudinally disposed centre stick having binding ropes extendingy at right angles outwards of the raft, the free ends of the ropes being passed circumferentially of the raft and fastened to they sido-v booms, and means for drawing the centre stick endwise of the raft as the raft is towed. 5. In a log raft, a plurality of tiers of logs pllurality of tiers of logs e other, side booms to f laid up one above the other and bound together, a pair of axially aligned longi: tudinal centre sticks, said centre sticks being tapered kand disposed with their thin ends towards the longitudinal centre of the raft, and means connecting the centre sticks whereby they are drawn inwardly of the..

raft to wedge the logs against the bindings. 6. In a log raft,'a plurality of ktiers of logs laid up one above the other, side booms to the raft, a pair of axially aligned centre sticks spaced part having binding ropes extending at right angles outwards of the raft,

the l:free ends of the ropes being vpassed posed upon the raft bindings as the raft is eireumferentialiy of the raft and fastened being towed. to the side booms, and means for drawing Dated atNewport, Ore., this 17th ldeny of the centre sticks towards each other as the February 1923. raft is towed. GILBERT G. DAVIS.

7. In a 10g raft, a plurality of tiers of logs MATTHEW J. DAVIS. luid up one above the other, side booms to Witnesses: the raft, bindings for the raft connected at W. F. MITCHELL, one end to the centre stick, towing lines LESTER MARTIN, connecting the side booms and the centre FRANCIS COMAICH, sticks whereby a tightening strain is im- CHAS. M. NETHERGUTT.

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