US830786A - Combined bunk and chock-block for logging-trucks. - Google Patents

Description

PATENTED SEPT. 11, 1906.

T. G. HAYWOOD. I COMBINED BUNK AND CHOCK BLOCK FOR LOGGING TRUCKS.

APPLICATION FILED APE.3,1906.

4 amoewtoz 7. 6r/ZQ Wa0d 35 2/3 attozwn upper channel 8 of the bunk are two opp UNITE srns Pars o rice.

THOMAS G. HAYWOOD, OF SEATTLE, WASHINGTON. ."C O MBINED BUNK AND CHOQK-BLOOK FOB LOGGING-TRUCKS.

IoaZl whom it may concern:

Be it known that I, THOMAS G. HAYWOOD, a citizen of the UnitedStates, residing at Seattle in the county of King and State of .5 k Was n, have invented certain new and useful rovements in afiombined Bunk and Choc -Block for Logging-Trucks, of-

which the following is a specification, referrs z genee being had therein to the accompanying Ig drawings, wherein- 1 is-a front elevation, partly in secitlon, showlng an embodiment of my invenv:tion mounted, upon a loggin truck. Figs.

- 2-.anld 3; respectively, are en arged longitu- .5 dina and transverse sectional detail views.

' This invention relates to devices employed for retaining logs upon railway cars or With these ends in .view the invention consists in the novel construction, ada tation, and combination of parts, as will be herein:

' after described, and pointed out the appended claims. the-drawings the reference-numeral 2 3.represents an I-beam arranged transversel of and carried upon the body of car or a'truci; ,31and supports upon its web 4 another like beam 5 and com rising a bunk. In the web 6 of the memb longitudinal slots 7, having their outer ends terminate at short distances fro'm'ithe extremities of the bunk. Located within the O- I sltely-arranged foldable checks 9, severa ly 49 comprised of legs 10 and 11 of sufficient lengths to protrude above the upper edges of the adjacent bunk-flanges 12 when the checks are in their upright o erative position and of less width than the istance therebetween to allow of their being freely slided len thwise of the bunk.

he legs of eachchock are pivotally connected by a in 13, passing through the apertured inter tting hinge portions at the top, 5 and are respectively provided with shoulders Hand 15, adapted'to revent a too extended opening or spread o the outerleg 10 will be inclined inwardl to a small angle from a perpendicular, whi e the pther leg 11 will incline oppositely therefrom Specification of Letters Patent.

'Application filed April 3,1908. Serial 11053091566.

er 5 are centrally-disposed the legs-that is to; say, when the chock is in its erect condition Patented Se t. 1 1, 1906.

to an angle approximately forty-five degrees, as clearly shown in Fig 2.

Secured to the inner le 11 0f a chock is an eyebolt 16which protrudes through the slot below into the tunnel-like space between the webs of the two bunk members and .wherein it is connected to a line or chain 17, which extends longitudinally therethrough to outside the opposite end of the bunk and desirably terminates in a ring 17 of greater diameter than the contracted opening 18 for the chain formed by blocks 19 or the equivalent rigidly secured to the ends ofthe bunk. Where aHking-pin as 20 in Fig. 1, extends throu h the web of beam 2, as ordinarily on true s, elongated links or bars 17f are desirably included in the chain upon each side of the in in order that interference thereby with a free movement, of the chain may be avoided.

Grab-hooks 21 are attached by chains 22 e or the like to some suitable places on the truck or bunk and are employed to engage with links of the respective chains and prevent their being drawn through said contracted openings, and thus secure the checks in their set positions and against the dislodgin force emanating from the load'of logs carried The operation of the invention is as follows: The. chocks, as above explained, are.

anchored against lateral displacement and maintained in their upright positions by the grab-hooks engaging the chains and are thus capable of retaining the logs upon the bunk, as illustrated by check at the left of Fig. 1. When a chock 1s to be released to allow the dumping of the restrained logs, the grabhook is disengaged from the chock-seeuring chain, whereupon the lateral pressure exerted by the logs against the inner leg of the chock causes the latterto be moved out wardly and be almost immediately tilted over u on the lower edge of the outer leg and falling in a collapsed state into the upper channel of the bunk when it is incapable of oiiering any obstruction to the rolling or' sliding of the logs from the bunk.

It may be mentioned that it is customary at the p ace of dumping to arrange the rails of the track so that the one upon the discharge side is somewhat lower than the other, thus inclining the car, so that upon being released b the chocks the logs will readil roll or s ide from the bunk, and also facil1-. tates the Withdrawing or collapse of the op- IJO posingehock. It is obvious that the chocks can be adjustably positioned to accommodate any load of logs for which the bunk is' adapted, likewise that the collapsing of a chock is effected with but a slight movement thereof, and that the release is effected from the opposite side of the car or truck from that of the discharge, thereby rendering it impossible for the log-tender to be caught and injured thereby. i

Having described my invention, what I claim is- 1. The combination with a bunk provided withia channel in its top of a chock slidably seated in said channel and to one side of the mid-length thereof, said chock being comprisedoftwo legs hinged so as to fold but imit the extent of their spread when open, and releasable means controlled from the end of the bunk end opposite to the chock for securing the latter against movement toward the adjacent end of the bunk.

2. The combination with a bunk provided with a top channel and a longitudinal slot in proximity to each of its ends, of two chocks slidably seated in the said channel and severally comprised of two hinged legs, a chain connected through the respective slots to each of the chocks and extending therefrom to beyond the ends of the bunk farthest from the respective chocks, and means whereby the chain may be detachably engaged toretain the connected chocks in their operative positions.

, strained.

ing therefrom to beyond the ends of said beams farthest from the respective chocks,

and means engageable with the chains whereby the chocks may be secured in various po-' sitions longitudinally of the beams.

4. A collapsible chock formed of two legs connected by. a hinge-joint provided with means whereby the extent of the spread of the legs is limited.

.5. Acollapsible chock formed of two legs pivotally' connected by a pin, and provided with means upon the respective legs for limv iting the extent of the opening thereof,and

means attached'to one of said legs whereby the lateral movement of the same is re- In testimony whereof I affix my signature in presence of two witnesses.

THOMAS, (3r. HAYWOOD.

Witnesses:

PIERRE BARNES, E. D. OBRiEN'.

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