US2382002A - Log bunk - Google Patents

Description

Aug. 14,* 1945. .F. w. cHRlswELl.

LQG BNK Filed Jan.' 14, 1,942 `2 Sheets-Sheet. 1

Heroin/cx M CHP/ swag All2- 14, 1945 F. w. cHRlswELL 2,382,002

i LOG BUNK 2 Filed'Jan. 14, 1942 '2 sheets-sheet 2 www ,Illlllllnw'i inauf Patented Aug. 14, 1945 y 2,382,002 LoG BUNK` A.limita-ick w. chrisweli, saitle,flvvsii' l,gassigner' to Pacific Car and FoundryCompany, Renton,`

` Wash.

This invention relates to log bunks or bolsters of that type equipped with chocks or stakes which may be released from the side ofthe car.

,The main object of this invention is to improve upon the structure of the bolster shown and described inY my prior Patents Nos. 1,224,276-

of Mayv 1, 1917,*and 1,569,613 of January 12, 1926, by eliminating the cast bunk filler and simplifying the bunk body structure, so that the latter may be made entirely of structural material and yet be sufliciently strongand vdurable tol withstand the wear to which structures of this type are normally subjected. V f

-Another`4 object. resides inv the provision of a slot andpin support for the chock, in lieu of the guideway and trunnions heretoforeprovidedgin they art. 4 V

*Other novel features forproviding an inexpensive yet durable Structur'ewill be found in thedetails lof construction and arrangement of parts more fully shown vand described in the following specification and illustrated by the accompanyingdrawingsinwhich .v I'

Fig. 1 Vis atop plan'view.

lig. 2.ils a perspective. partly in section, and.. partly exploded to show thestakapin and guide slots;

portions ofwthe sidewalls and 2 are formed thelongitudinally extending slots vI4, these slotsbeingqrelativelyshortin length and arranged in` a commonhorizontal plane at each Vend of each'- side-wa1l.'-;.Welded to theginner--faces at eachI end :of thefside walls` Iand-2"are the reinforcing.:

blocks or plates I5 each wit-h longitudinally disposed slots I6 'registering with the adjacent slot y in ,f-the4 side-wall toiwhich it is attached. Thisarrangementfreinforces vthe-Web structure of the sidewalls I-and` 2W aboutthe slots and also increasesthe supporting guidesurfaces of the pins which travellin `the slots `ashereinafter more fully described... .Secured'to :each .end Vof each of the side.Witlls-Iy and 2 ,by weldingarethe guide bars or .rails II and I8, these guide barsorrails bebrace120. \Ihecross.brace2ll.is in the form` of a web' connecting the loi/ver marginal portions of Fig. 3 is a Afragmentary sideielevation vof one end of the device.

Fig. 4 is a iengitudinal ver-ucm section of one end portion of thek structure.

'Fig'.-5 is'a'n end elevation, and

Fig; 1. n l

"l'lie'pes'ent embodiment includes a bunkbody and stake Amechanism therefor. The bolster is yFig.v 6` is a' transverse section on line2v G- Sffof assembled-from structural'material and includes the side walls I and 2 formed of bulb angles, set

upright with their bottom flanges. 3 and v4 extending laterally outwardto provide suitablefsuprr porting surfaces. Interposed betweenthe upper marginal portions of the'upright bulb angles I and 2 is a horizontally disposed I-beain including-the 'web 5,v upper anges 6 and depending flanges 1. This I-beani is welded tothe inner faces ofthe bulb angles in a manner to pe'r-- mit its upper anges 6 to project substantially I above the latter.A The end portions of the web 5 and the end portions of the depending ilanges.

'l ofthe I-beam are cut away as at 8 in Figs.` 4

and 5 to provide for'the positioning andmove- I ment of the stakes 9. It will be noted that the centrally cut-out'portions-of the web 5 includes the slots II which receive the web like braces I2 of the stakes. Beneath the upper marginal bulb ing Vpositiorfiecl.at their upper: endsv I8 outwardlyv of tlieslotsl I5 andfcurving downwardly and inwardly to terminate. in the substantially vertical portions I 9 against. which abutsthe cross thesidehjwalls I and 2 and' functions to reinforce and' retainthe.lattery in their relative positions andA also' to V'cooperfatfe vi'rithother movable Vparts to'be hereinafter described. It will be noted n -`welded at'V their extremi-` sde Wallsand bars' stake"includesv the4 body portion 21|y of ar n width to snugly lex'i'g'age within the walls 9 defin- ,l ing the cut-out portinA of the web of 'the'top member 5 and of a height suitableto retaina predetermined load in the'n usual manner; At' the base of the body of the stakes 9 are the laterally extending lugs orboss'es'22'i which yengage the top en'd portions" 23 "and" 4the louter faces' 24' of" the guide members'll' and- I'8. Pivot arms 25 extend" at right langles `inwardly of the body 2I ofy f thestake and are formed with transverse axially alined pin receiving'openingsfs. A pin 21 extends through these openings "in the 'ends of the pivot arms'and engages Within and travels throughout the length ofthe slots Il formedin the side plates I and 2 and the slots I6 formed in the reinforcing plates or'blocksl secured about these openings; :Crosspinsv 28 extend through the extremi ities of the"pin`2'l to securethe latteragainst"` displacement. `Acontroll lock arm'30 'is pivoted to' each pin 21 intermediate the spaced pivot'arms :25 andy includes the shank 3I which terminates l at-its free eridfinfenlarged head32 and dependingwange v33'. The controlarms'extendsub` stantially the length of the bunk to engage cross braces 34 leach of which is shaped to cooperate l minimum of time and labor.v

with the enlarged head 32 and the depending "ange 33 in a manner well known in theart.

As in my prior Patent No. 1,569,613 I have provided the transversely extending upwardly inclined webs 34 whichI extend outwardly of the inner walls of the uprights I and 2 and are sep cured to these walls4 and to the inner inclined faces 35 of the slottedrblocks l5?. This arrange- 1 ment of the inclined web 34 immediately above `the locked position of the enlarged end 32 vof the shank 3| will cause an initial movement of l the associated stake downwardly when the shanl'rl :I i 3| of the control bar is lifted. This movement is termediate said arms, and a-horizontal beam having flanges at its outer edge portions connecting the upper portions of said side walls,.said flanges projecting above the upper edges of said Walls.

2. In combination,A a bunk including spaced side walls andwa connectingbeam, .said beam including' upperflanges norvmrtllyf extending above saidside walls and having its web cut away at each end to provide stake receiving pockets,

" longitudinally extending slots -formed in each essentially brought about because` ofthe normal.

path of movement of the enlarged" head 3|' in its travel in contact with the inclined Web 34. AIt will be noted that the projecting webs 34ftermir'ratel short of the path of movement of the sharikslLA of the control arms as is clearly shown in Fig. 6L

From the. foregoing it willV be noted that-the" y present development resides primarily in the sim'- pliedl brink; body construction-which is made entirely' ofi structural. material, l'slightly' modiv ed lto provide guide slots and endpockets. Such parts as the curved yguide and supporting vbar for guiding and supporting the chock? 'is made ofibent stock material and' is welded in place4 as yabovev described. The `same is true of (the l Webs positioned'between the side Walls and which not only function as cross-'braces butalso cooper-y ate with the locking bars as isdvvellv knownn 1 the art rand' as fuily described irrmyprior patl ents. The locking bar, ther means for holding.

andlocking the locking bar, and the inclined web l for vsliiftingtl'ie bar forwardy when released to l necting beamHsaid beambeing'welded'to the Iupper longitudinal portion of 1 ',liel`i-nn`erfaces of said angles, 'slots iorm'edfiir theend tpoiftiori of prevent it from falling back and locking'in instances where the chock does not vfall arefeaturesuvvhich` also ,are broadly shown and del-l scribed in my earlierpatents.

`As a result of the structure embodied `in the i present application it is possible ,to construct ,a

log bunk of available material, with the bunk needed Withoutspecial equipmentiand iivith-k a Whatilf. clairnfis:v

i capable of performing all of its functions in theA j s 'usual manner and perhaps more important, lcapableofsupporting the maximum loadunder all conditions. It is alsoA possible because of .the simplified structure embodying the use of tstr-uc-j z turalmaterial to make repairs when and where 1f- A, log bunk including spaced: vertical side-f wallsiormed ateaclfr` end with parallel' longi-r" tudinally yextending slots arranged in a commonl piane,l guide memberssecured togand extendingr from the inner fa'ces ,of the end portions of each: offsaid side walls,rsaid. guide members curving 1 downvvardiy'A and inwardly and terminating at their inner: ends below said slots, 'stakernerribers 'having lateral kprojections adiaeenttheir' lower end'portons, said'proiections being adapt 'f pins extending control locklarrnf'pivotecl t'ofeachof saidlpinsin'- end" of each of said side Walls, separately formed downwardly and inwardly curved guide members securedgtothelinner faces of each end of each of said"sidelwalls, stake members at each endofv said bunkfeach stake member including inwardlyfefxtndirrglspaced arms, a pin extendin through said arms and into guiding engagementvvith'the walls of said slots, and lateral projecting'portiensformed atth'ebasefof lsaid stakes adapted to seat u'ponithe upper' end ofsaid' guide member'wl'le'rl"saidA pin -is inits innermost position in said slots,v and to'swi'ngun'der andin engagementwith'the 'outerfface of saidguide mem bers assaidl pinsrlaref moved toA their'outer posi'T tions in s"aiti"slot,"whereby said stakes mayV beI shiftedto either" a fixed; vertical position'y or tov a position between the endsfoi the side walls of said "bunkp I v I l y 3.-"A` bn'nk'for 'logging-pars" including a bunk body formed of spaced sidefangles and a conea'chv of the side angles, saidslt's'" being l'iorizpn-Y tally alined, movable lstakespositioned inf'the ends 'of said bunk tbody; and including inward- 1y extending space yann,s'giir'rs extending-through. the 'Quterend Pltens ,Qf seid affini said rms4 having their yend portions'jex'tending laterally of.y said arms for movement within ysaid slots,` andA slotted guide blocks secured tothe v.inner faces of said angles with tn ei'rxslots registering with the slots in; said z a ,ngles', said Y blacks partiallyl supporting'sai'd pins and 'engagingthe outer faces..

of said spaced `turns. to. forrnlateral stops. for said stakes.

4.' A logbunk including spaced'.

walls formed at each' end with parallel longiLfA tudinally extending l. slotsafngd'n {a} common plane, guideamembersgsecu'rged, toand extending from' the inner faces of the? endportins of eachk of `said-side walls saidtguide" members curving downwardly andv inwardly *and .terminating at.,y i theirfinnerends belowsaid slots-,stake members ,Y having., lateral projections adjacent their lowery I endportionsgfsaid projections being adapted yto.

engage.tittetopY and outer sides voisalidl guide members `uponrnbveinent of said stake from-up. per to; lower positions, lsaidrstakesfeach including-- a pair of spaced inwardly extending pivotarms formed- -With transversely extendingzalined open wings at their endportions, pins extending through" saidvalined-openings yin the: outer' end' portions of said'pivot. arms'and engagingwithin saidlon'-y gtudinally-extending.- guide-:slotsxa rcontrol lock arm- Apivoted to, each f of' sa-id pins intermediate said: arms;l and a horizontal beamv connecting the 4upper portions oi 'said walls; f

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