US1837165A - Log carrier - Google Patents

Description

Dec. 15, 1931.

A.\N.I EVVIS LOG CARRIER Filed June 2, 1928 3 Sheets-Sheet 1 l/m Wa/Pr Am/s INVENTOR Y ,..,M %M

Dec. 15, 1931. A w, L 1,837,165

LOG CARRIER Filed June 2, 1928 3 Sheets$heet 2 R fl/a z l/Va/lkk d Mp: INVENTOR A W' LEWIS was, 1931.

LOG CARRIER Filed June 2, 192: s Sheets-Sheet s INVENTOR (a0 .ci ar.

ge ther 10y chains running entirelyaround the assembled structure which were then secured Patented Dec. 15, 1931 7 ALLAN WALTER nnwrs, orivnrconvnn, Burris ::coimnmgcnminn; nssrema 'ro mswrs pm we RAFTING '00., or

OREGON t r Application med Jane s,

. iMy upresent application relates to my United'tSt-ates Patent Number 1,575,070 patentedrMarch ,2511926,wup0n a" logicarrier;

The primary; purpose and object of my: 1n-

5 v-ention is for use in the transporting of logs in marine; trailie from the-point of: origin: of

the logs to: thepointofuseof the same either' iniinla'nd waterways,:orin the open sea;

. Hereto'foreit has 1 been 1 the general custom 1O in thetransport-ing of-logs to make the same up; into, surface rafts where the same are to i be transported in relatively; calmtwatersvand to zmake :the same into cigar shaped rafts whererthe same. are to be towed over 1 rela- 3.5 itively long: distances: and es eci'ally in the open: sea. Where logs :are "to transported in the opensearlripsi arerenoounteredwand the rafts areama'deeupin :eradlestoqforman .assembled raft in :the shape of an immense The log cradleswbeing secured totogethjer. These raftsin western America sometimesvattain a length ofa thousand feet or snore and great expenseeof; both i labor and money arewreguired the assembling and the disassemblingof the rafts. "Even when great care isexe'rcised, they are sometimes 5 wreoked by, the-heavy seas and? the rafts become atotal so losslto the owners; or a liability to'the companies transportingzthe same.

iInmyneW-andimprovedlog carrier, I employ a scow like structuie having .water tight compartments. disposed at the oppositelyldisposed ends ott-hestructure and having a'hold disposed therebetween'; into which :full tree .lengthilogs may be placed and lashed for marinetransportation.

One of theobjectsjof my invention consists .inilessening theelements of time and cost in the placing of the logs within the scow and the removrahility of. the sametherefrom when "the point; of destination is reached; ,t

A; further object of my inventioniresides in theliniiting of the'loss of logs initransportation; thereof overt relatively water: transportation;

dong "distances: by

And still further objects of invention consist in proyid ng a log carrier that will requirea min mumof towmgtenergy 00n ro'nrL'A m, "unseen, A gooanonmrronf'or 19123, serial no. 282-1333,-

isistent with-tremendous weights ofnargo in- =volved; V V l And: still further objects of my invention leside in: a: hull; the icentrali hold 1 of which may be wholly or partially submer to. facilitate the loadih-gofllogssand: w ich inay be sufii ciently submerged to permit thefloa'ting of the cargo from the hold.

A "still 1 further object of my: inventiom resides inameans for'jthe application-oftowing connections thatmakes. ssibiei'thefsafe and expeditious handling o thelloadediscow in rough :water. 1

And still further objects himinvention consist 51in providing .siinple: m1 1 eflicient means for-the floodi 1 rand-emptying of'the cargo hold: and for the tilting ofztheaecow at desired; angle at either thenportor starboard side toifacilitate erations. t

And still-further objects of my zinvention may be. used over relatiuely .lon'g operating periods iwithra minimum of'repairiand maintenancelcosts. r i 1 :Withthese and: incidental obj ectsin view, the inventionconsists in ee'rtaminovel features "ofwconstructioni and combination-Hofparts, the essential elements of whichmare :set :fOirt-h'in the appended claimgmndiatpre- 2 :ferred form of embodiment ofzwhich hereinafter shown reference toxthe' drawings which accompany and form ar rpart of these specifications. n: n r :Inthe drawings: v

1 isza top,aplanwview,lnf my: new and improved device shown. during. the loading of a relatively long tree llength log. y

- Eig. l2:is-=a;l0ngitudinal, sectionalwiew,

:takenonlineQ-Q of;1,1al0nkingiinfthe directioniindixtatedi v i i. :Eigk 3 isa erosssection tviewy takenv on; line Y of "Fig; 2, looking ;infthe-;direction.inidica'ted'e V {loaded "scow,yillustrating (the :fastening elements used in the *IaShing of-Ethe lbgmaigo =in ;plaee-'and;p0sitibn.19/;

x Eigrfi israrsectiomtl wiewkofthesscow tratin'g the {same :in sub; gposition to 5 a; sectional View; of a completely '1;

"loadingandunloading opresidel'inz thesimplifiedhullieonstructionthat facilitate the floating of the log cargo from the scow when the same has been partially submerged.

Fig. 6 is a sectional View taken on line 4.-il of Fig. 2 looking in the direction indicated, illustrating the scow in list to facilitate the loading and unloading of the log cargo from one side of the log carrier, this being accomplished through the flooding of the water tight compartments on' one side of the scow and at oppositely disposed ends to cause the listing of the seow for loading and unloading purposes. 7

Fig. 7 is a fragmentary, sectional view,

taken on line 77 of Fig. 2, looking in the direction indicated, the same being made to illustrate the pumping unit, the piping connections therefor, and the sea cooks for flooding the cargo holds and the water tight compartments. I

1 Fig. 8 is aperspective View of the A frame structure from which the elevated line is supported. 1 1 I Fig. '9 is a perspective view of the side .strakes, or planking, and the stanchions to which the. same are secured.

F ig.=10 is aperspective view of the oppsitely disposed side of the mechanism illustratedin F ig. 9, but on a smaller scale.

Like reference characters refer to like parts throughout the several views.

I preferably form the hull of mylog. car- 'rier of spaced side wallsl and 2, and bottom planking-3. The side and bottom planking forms the skin of the carrier which is pref- ;erab1ymade of wood. The carrier may be made ofmetal thus forming a flat bottomed.

carrier formed 'of a' relatively watertight outer covering of wood strakes and bottom planks caulked and otherwise made water tight and'of 'sufiicient thickness to form a stiff and sea worthy hull. Stanchions 4 and 5 are disposed upon the inner skin surface to afi'ordirigidityto the same and having a plurality of knees 6 and 7 disposedadjacent thefstanchions; The'knees are secured to thecross irders 8running athwart the structure, and also affixed to the stanchions to stiffen the hull and make the same seaworthy.

I have found best results obtain where these knees are made of wood but I do not wish to be limited to wood knees, as metal knees may be used. A center keelson' 9, runs longitudinally of the structure and one or moremay be used, depending upon the width of the carrier and the length." The center keelson' where wooden knees are used would preferably be fabricated out of wooden memconcrete also being of agreater specific gravity substantially lowers the center of gravity of the carrier and makes the same have a greater seaworthiness. lVhere an all wood carrier hull is made, the same may require ballast on the bottom of the hold to facilitate the submerging of the hull to or below the gunwale lines of the central hold. The A frame posts 10 and 11 are disposed at either end ofthe hold secured together at their upper meeting ends as at 12 in Fig. 8, which may be secured together by any suitable fastening means, as by strap iron shackles 13 and 14. Disposed adjacent the end surface of the meeting A frame posts and suspended therefrom is a shackleblock 15 over which an elevated line 16 passes. The elevated line 16 runs the full lengthof the carrier, has a turn-buckle element 17 disposed therein terminating in a metallic eye-bar strap and shackle pins extending downwardly along the end of the carrier to strengthen and stiffen the same. The turn-buckle is preferably made of substantial length to 00111- pensate for the stretch of the line and the maintaining of the same in a relatively tight and working condition. A traveling carriage 18 is disposed andrides upon'the line 16 and .is adapted to move and travel there along through the application of power through the haul back lines 19 and 20, the same being secured to drums of the winch 21 for reciprocating the carriage in desired placement along the elevated line 16. Depending from the carriage 18 are hooks 22 and 23 terminating the free ends of the lines 24 and 25 also running to drums upon the winch 21; so that either of the lines may be independent-ly moved through the operation of the drums of the engine. In actualpractice in the loading of my carrier, the hull is partially submerged by the opening of the sea cocks until the gunwales are slightly above the normal water level both inside and outside of the carrier. The log 26 to be loaded, as illustrated in Fig. 3 is floated alongside of the carrier and the lines are then passed'beneath the log, as illustrated at 27 and 28 in Fig. 1 and the hooks are then made secure to the chains 29 and as tension is applied to the lines 27 and 28, the log is simultaneously rolled and lifted over the gunwale into the hold of the carrier. -Water being disposed within the carrier, the logs are floated through the use of pike poles or other means tothe opposite side of the carrier from which the same were rolled until a tier of full length logs are disposed within the carrierat the same time displacing a part of the'water therein. A second tier of logs is then loaded into the carrier with thebutts of the logs disposed in the oppositely disposed end of the hold, so that one layer of logs is loaded with the butts of the logs in One direction and the next'layer of logs is are formed into a plurality of, relatively water tight compartments. both in vertical and.

loaded with the butts in the opposite di rec tion until the l'ogsassume the position substantially thatillustrate'd in F ig.4, at which time the hold down ifastenings 29 .asillus:

trated in Fig.4 are secured, at opposite ends to the fastening elements, thus malntalning the logcargo in a seaworthy CnCl1t1OI1;' in

which positionthe same-are'carried to'their factory results obtain where a structural element, as a channel iron is used having an outer leg 30 of substantial length disposed uponthe outer upper strakes ofthe side walls crossing over the gunwale, as illustrated at 31 in Fig. 9, and downwardly extending on the inner surface and secured to the stanchion 32, thus forming a U shaped element having spaced side walls or legs 30 and 33 and having cross connecting element 31 with the legs of the channel downwardly extending therefrom. The outer leg which the log y es and over which the log is rolled, thus we. fastening and protecting element of great strength. These elements increase the rigidity of the carrier and prevent the undue chafing and Wearing of the logs as they are rolled into the hold of the carrier and therefrom outward as the logs are rolled from the carrier by the same being floated therefrom, as the hull is partially submerged.

5 The carriage 18 is laced in the desired position for the handling of logs of any length to be loaded within the hold of the carrier. The oppositely disposed ends of the hull outwardly extending from the log carrying hold,

horizontal spaced relationship.

Referring to Fig. 7, form the compartmerits-between the bulk head 35, the outer skin 36, and thebridge deck 40. I then divide each of these main compartments which are on each end of the scow into a plurality of upper and lower compartments. This re d l i d 134' t 'dl lone .ey placing a tween ec in ne m1 c 19 of each compartment in a horizontal plane.

5 rality of main compartments 37, 38, 39, and

These upper and lower compartments are then split into smaller compartments by a division wall 34A placed in a vertical plane thercbetween. In this way is formed a plu- 3991 which are in turn divided into smaller secondary compartments as aforementioned and outlined. The purpose of such construe i is to permit easy maneuvering of the lit and the cargo when it is being unloaded, 7'

and loaded. There is then all told, eight .forward endof the carrier which is adapted to being driven by power means, as a driving shaft 42 from the engine of the winch 21. The pumping element 41 is secured to a sea chest 42 and the sea cocks 43 and pipe 44;, which when open permit the inflow of water into the'interior of the carrier and the closing of the . valves 45, 46 47 and 48 will automatically predetermine'which of the holds of the carrier are to be flooded. lVhen the sea cocks a and pipe 44 are. closed .after th-e compartmentshave been flooded, vthe pumping out of the spaces may be accomplished by the operation of the pumping element 41., The watertight compartments disposed Jbetween the bridge deck and the tween deckw34 when flooded, permit-ofa greater submer-v gence of the carrier than if only the lower compartments were flooded and the' flooding of the compartments on the starboard side ofm either endwillicause a list of the carrier to starboard, whereas the flooding of the compartments onthe port side, only, wiueause a listing of the carrier to'port. The pumping of all of the compartments and the openm hold may be simultaneously accomplished by the opening of the connections leading to the chest 42 to whichthe pump is attached directly or the pumping of independent compartments may be accomplished bythe manipula- 006 ,tion of the valves disposed between the chest 42 and any a of the; compartments to be pumped, with allothervalves closed. 5 A discharge; outlet 49 leading from the] pump terminates at a greater height than that tot-100 which the discharge end 50vis to be sub merged, thus maintaining free. pumping discharge outlet at all times. 1 1; 7 To furtherstiffen the carrier,lhogrods 51,

52 and 53 and 54 connec the Aiframe with e106 the ends of the carrier, the same may bemade of wrought or bar stock, thus maintaining the sameof a substantially even length during the life of the carrier; thus eliminating the necessity for check-upsof variouskinds, 3H0 Whereas turn buckles are veryiessential in the line 16 because of the stretch. disposed therein. To facilitate towing operations and'the attachment of the carrierto a tug or'other towing unit, straps 55 and 56 are disposed at c eitherend of thecarrier and at oppositely 1dispoeed sides terminating ineye connections 57 and 58 to which bridle elements 59 and:60 are attached. i A

The'expeditious handling of long lengthm logs cauvonly beobtained through an overhead equipment and the shifting of the carriage to the right position for lifting 10 s in an. enpeditiousmanner is very essentialin the economical loading oflogs. In equipmentof thiskind it is highlv 'essential that thesame. have relativelylight draft because the same must bead'apted for use in sulallarms of they-sea where relatively light shallow channeldepths leadthei'efrom to the open sea and the carrier must be sea,-

worthy to permit the safe delivery of the cargo from such position to the central point of manufacture or place of use of the logs.

' worthiness of the carrier, ballast is some- As logs become more valuable as our forests become denuded, the safe delivery of the logs is very essential and in carriers of this kind where tree length logs are to be used, I have found the structure as herein outlined is admirably adapted for this purpose. To aid in the rapid, partial submerging of the hull of timber construction and to increase the seatimes placed at the bottom of the hull.

While the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form of embodiment herein shown and described, as it is susceptible of embodiment in various forms, all coming within the scope of the claims which follow.

=What I claim is: .7

1. In a device of the class described. the combination of a flat bottomed submersible hull composedof a plurality of compartments at itsends, said compartments divided into sub-compartments, and an open hold disposed therebetween, means for flooding selected sub-compartments and/or the hold with water to cause a list of the carrier to the side'selected, means for emptying any one of the flooded sub-compartments and/or thehold, and means vfor rolling logs from outside'the hold into the hold from a central power station disposed within the carrier.

2. A log carrier comprising a hull having an open hold disposed centrally therein and comprising a major portion of the hull hav- "ing sidewalls and a central keelson running the full length and structural metal protectors extending in spaced relationship over and down each side wall, a plurality of water tlghtcompartments disposed at each end of the hull, said compartments compris ing a plurality of sub-compartments disposed in horizontal and vertical series, each being adapted to being flooded independent of the other or all may be flooded at one time. 7

- 3. A carrier of the class described comprising a hull having its major portion of an open hold, a plurality of water tight compartments disposed at the fore and aft parts of the hull,-said compartments comprising -four, in number, two being disposed at each end of: the hull, one compartment disposed abovethe other and divided by a tween deck, each one of said compartments being divided .into two sub-compartments, making ,a'llvtold eight chambers, four on each end f the hull, said sub-compartments adapted tobeing independently flooded thereby permitting unusual maneuverability and maintaining buoyancy of the carrier at all times. at. A log carrier comprising a fiat bot- ,tomed hull having an open hold disposed therein, a. plurality of water tight compartments disposed at the fore and aft parts of the hull, said compartments being arranged two in a vertically disposed series with a .tween deck disposed between each series,

said compartments being divided into subcompartments arranged two in a horizontally disposed series, each sub-compartment being air and water tight, and means for flooding and/or emptyin each compartment independent of the other to port or starboard, or

perform any other maneuver necessary for the easy loading and unloading of s.

ALLAN WALTER LEwIs.

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