US1343434A

US1343434A - Wire-rope carriage

Info

Publication number: US1343434A
Application number: US331318A
Authority: US
Inventors: Cook David
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-10-17
Filing date: 1919-10-17
Publication date: 1920-06-15
Anticipated expiration: 1937-06-15

Description

D. COOK. WIREVROPE CARRIAGE. APPLICATION FILED ocr. I7. 1919.

Patented June 15, 1920.

UNITED STATES PAT-Eur eprice.

DAvID'cooK, oFfLYivIv vALLE-Y, BRITISH COLUMBIA, CANADA.

WIRE-ROPEV GALERAS-E.

j Application led October 17, 1919. Serial No.7331.318.

To all whom t may concern: v Y

Be it known that I, DAvID Cook, a citizen of the Dominion of Canada, residing at Lynn Valley, in the Province of British Columbia, Canada, have invented certain new and useful Improvements vin VVire-Rope Carriages, of which the following is a specification. i

This invention relates to an overhead carn riage of that class which is designed to travel on a wire rope track or standing ,line for the conveyance of shinglebolts or the like from the woods to the place of transportation.

The invention is particularly described in the following specification, reference being made to the drawings .by which it is accompanied, in which: v i Y Figure 1 is a side elevation of the carriage and the track rope stops with portions of the nearer plates removed.

Fig. 2 is an end elevation looking in the direction of the arrow 2, and Y Y y Fig. 3, an enlarged detail Vof the load lifting drum gear and its sustaining pawl.

F ig. 4 is adetail perspective view of the,

pawl device hereinafter specifically referred to. i j In these drawings 2 represents the frame of the carriage which is carried on the track rope `4 by grooved sheaves 3 mounted in the frame, and 5 are guard sheaves beneath the rope preventing displacement of the carriage on the track. The track rope 4 is suspended in any suitable manner, where required through the woods, at aV convenientheight above the ground level, and the carriage 2 is drawn along that track rope by a hauling line 6, either in the direction of the arrow `A towardV the in-station, where thejhauling engine is located, or inthe direction of the arrowB toward the out-statiomthe rope passing through suitable guide pulleys around the circuit and back to the-drum of the donkey engine.

vThis hauling rope 6 passes over Aguide pulleys 7 in the lower part ofthe carriage;l

at each end, and between these guide pulleys passes aroundsheaves 8 and 9mounted one above the other yonthe carriage. Y I

f. On the

shafts

10 and 11 of theqsheaves 8 yand 9'are secured pinions 12 and 13, theteeth of which mesh with those of an inside gear 1.4 secured on a drum 15 rotatably mountedbetween the side Vplates ofthe carriage. I Tothis drum .15 is secured one end Vlever 26. l j

Thus, when the free end of the lever 26 ,is drawn down by a line 29 connected toit,V the cam 23 towhichit is secured, is par-V of a load lifting line 16, the freeend of which has Va hook 17 to which the load of shingle bolts or the like'isconnected to be lifted to and lowered fromythe carriage.

.This load lifting mechanism,^represented by the sheaves 8 and 9 and drum 15,'is held lSpeeication of Letters Patent. Patented June 15,1920..v

against lifting or lowering movement by'a pawl `18 mounted on the carriage at 21, the

free end of which pawl is laterally turned to engage the teeth of the gear wheel 14 and the pawl is counterweighted to normall hold it in such engagement. i

.The end of the Ypawl 18`is produced be- 1 yondxits pivot 21- and is upwardly angled,

as at 22,V to project beyond the adjacent endVv of the carriage. so that when the carriage approaches thedesired limit of its outward movement it will engage a` stop 35 secured to the track line 4 and the pawl'18 ywill be withdrawn from engagement with the .teeth of the drum gear 14. s v v `To enable release of this pawl .18 to. be effected from the oppositeend of the carriage, that is, at the desired limit; of its movement at the in-station, a lever 19 is pivotally mounted intermediate of its ends adjacent the other end of the carriage, one end of which lever'is bent to project beyond' the carriage and the other end Vis connected by a rod 2O to the upwardly turned end of the release pawl 18. .j 1

The stop atthe in-station endnof the track line 4, where the donkey engine is located, comprises an upper clamp bar 25 secured to the frame of the stop and a lower clamp bar in the side frames to be lrockable inward toward one another to effect the clamping,

v`and outward to release it. 'A lever 26 extends from one of thesec'ams, while to the other issecured, intermediate ofY its ends,-

a leverl28, one end of which lever 28 is connected by a link 27 Y to the imiddle of the tially rotated to clamp the rope 4 andi lthrough the link 27 the same movement is imparted-to one end of the lever 28 and rotates the other eccentric' 'cam through the sameiangular amount inl the opposite direction to effect theclamping. -Again, if the.

lever 28 is drawn down by the line 30 connected to its free end, its eccentriccam 23 is rotated to effect release of ther clamp andV the upward movement of the opposite end of thatv'lever lifts the lever 26 to effect release ofthe other eccentric cam. The frame may 'thusbe conveniently clamped or released as required.

The stop member 31 is secured to the side frames of the clamp to project forward to engage the end of the lever 19 of .the carriage. Theframes of the ystop vmay also conveniently carry a sheave 32 over which.

the hauling rope 6 will'pass- 'l Toward the outer end of the track rope 4 is secured another stop having, a similar clamping and releasing means operable with lines fromv the ground level, but as this stop may require'to be frequently moved to dif-- ferentpositions on the ,trackf as the Vplace of the cutting changes, its carriage 33 is mounted. on sheavesy 34 to run on the track rope 4. The underside of these sheaves 34 project slightly below the underside of the upper clamp member 25, so that whenv the'` clamp is released the carriage is free to` move without frictional contact of the clamp bar with the track rope.

Thevstop 35 of this frame projects fromA the end which is toward the Acarriage to engage the produced end 22 of the pawl 18l and release that pawl from engagement with the'gteeth. of the drum gear 14.

Pivoted on theend ofthis stop frame 33 to project beyond .the face of the stop 35 is a latch 36 adapted to 'engage and retain a holdv of a pin 37 mounted on the adjacent end of the movable carriage 2, so that when the carriage/engagesA the stop 35 it will be retained there by the latch. VThe pin 37,'

which the latch engages, is rotatably mountn ed in the frame and has a'projection 38 from itsunderside that when the pin is partially lrotated will lift the end of the latch 36 from retaining'engagement.

Rotation of the 'pin 37 ris cooperative with V approachof thelloadlifting hook 17 to the underside of the carriage 2 by means of an enlargement 39v on the line 16 adjacent its connection to the hook, `whichenlargement engages the underside of .a bell crank lever 40 pivota'llyfmountedV in the frame 2,Vv the drum 15 being latched with the load hook 17 drawn up to the carriage', the drum vbe# iing latched,`A the hauling rope is practically connected toltlie carriage by its; passage around the Ynon-rotating sheaves 8 and 9, l

and the carriage may be drawn along the track rope 4 by the hauling line l,6 in the direction of the arrow B.` When the end 22 of the pawl 1.8 engagesrthe stop 35 at theA place of loading or outstation, the pawl is withdrawn from engagement with theteeth of the gear 14 and the drum 1,5 is free to rotate and simultaneously the latch 36 enraves the ain 37 to retain the carriageV s l e against backward movement ron thetrack rope. n f

Furtliermovement of thehauling rope@ rotates the sheaves 8 and 9 to lower the load f l block 17 to the ground level. .'l`hereafter,..

.the loadis connected and the hauling rope 6 is drawnin the opposite direction, as ivnfAv dicated by the arrow A, which movement, the carriage being retainediby .the latch36 1 against endwise movement on the track, vro-M tates the sheaves S and 9 andthe Adrum115 to lift the load to theoarriage. As soonas the enlargement 39 engages thebell crank lever 40 the pin 37 is partially rotated to releasethe latch 36 andset the carriage..

free, Vand as the end 220i thepaWl leverv moves Aaway from the stop 35 the pawl. 18 assumes its normal position ofengagementwith the teethof the gear wheel` 14 and the load is retained adjacent the carriage2 and., clear of the ground'as thatcarriage moves along thetrack to the in-station wherethef load is to be deposited.

On arrival atthat f station the projectingA end of Vthe lever 19 encounters theY stop 31 and the pawl 18 is moved to release the drum 15, when the load is free to belowered to the 'ground,the rope 6 being paid out as required. The lowering, E

movement will tend to Yhold .the carriage against the stop 31. f I

VHaving now particularly described my invention, I hereby declare. that `what I claim as new and desire to be yprotected in by Letters Patent, is:

1. A carriageffor anoverhead track, comprising the combination with-a suitable frame having sheaves adapted to run on an overhead track, a drum rotatably mounted.

in the ,frame to which drum oneend-o'f a v load sustaining line is connected, meansfor rotating the drum'by the hauling. rope from.

the donkey-engine, said means comprisingx.

Aa drivingfsheave'around which Vthehauling rope is passed, a pinion securedito rotatev with the driving slieave, the-teethgof'which l pinion mesh with lthose of agear wheel se- Acured to rotate'with the-drumV means forl normally'holdingthe load sustaining drum against rotation -in either direction-whereby the carriage maybe drawn in Veither direc- ,125

tion along 'the track lby the' hauling rope,

meansfor holdingV the carriage against end-Y wise -movement on the t'rackat'theI limit of v;

its desired outward movement,-meansjco, operative with attainment ofV the 'carriage to its limit oi outward movement for re?,

' hauling rope and the drum is again locked.

2. A carriage for an overhead track, comprising the combination with a suitable frame having sheaves adapted to run on an overhead track, a drum rotatably mounted in the frame to which drum one end of a load sustaining lineis connected,means for rotating the drum by the hauling rope from the donkey engine, said means comprising sheaves around which the hauling rope is passed before proceeding to the end of the line and returning to a drum' of the hauling engine, pinions secured to rotate with the driving sheaves, the teeth of which pinions mesh with those of a gear wheel secured to rotate with the drum, means for normally holding the load elevating and lowering drum against rotation whereby the carriage may be drawn along the track in either direction by the hauling rope, stopsV preventing movement of the carriage beyond a desired limit toward either end of the track, means for holding the carriage to the outer limiting stop, means cooperative with attainment of the carri-age at either limiting stop for releasing the drum holding means, whereby movement of the hauling rope may rotate the drum to lower or raise the load, and means coperative with elevation of the load toward the carriage for releasing the carriage holding means whereby the carriage is free to be drawn along the track by the hauling rope and the drum-is again locked.

3. A carriage for an overhead track, com- Y prising the combination with a suitable frame having sheaves adapted to run on an overhead track, guide sheaves at each end of the carriage over which the hauling rope from a drum of the donkey engine passes, two driving sheavesvmounted one above the other intermediateV of the guide sheaves around which driving sheaves the hauling rope passes before proceeding over the other guide sheave and to the other end of the track to return to a drum of the donkey, a pinion secured to each driving sheave to rotate with it, the teeth of which pinions mesh with those of aninternal gear secured to a load sustaining drum rotatably mounted in the frame of the carriage to which drum one end of a load sustaining line is connected having a load hook at the other end, a stop removably secured to the track at the desired limit of the inward and outward movement of the carriage, vmeans normally preventing rotation `of the load sustaining drum whereby the carriage may be drawn along the hauling .rope in either direction, means operative by attainment of the carriage to thestop at either limit for releasing the' drum whereby movement of the hauling rope effects rotation of tie drum to raise or lower the load, means' for automatically holding thev carriageV against the stop at the outer limit of its movement on the track rope, and means operative by elevation of the load hook toward the carriage for releasing the carriage from the stop.

4:. A carriage for an overhead track, 'comprising the combination wlith a suitable frame having sheaves adapted to run on an overhead track and to retain it thereon, guide sheaves at each end of the carriage over which the hauling rope from a drum of the donkey engine passes, two driving sheaves mounted one above the other in the frame intermediate of the guide sheaves around which driving sheaves the hauling rope passes before proceeding over the other guide sheaves Vto the other end of the track to return to 'a drum of the donkey, a pinion secured to each driving sheave to r0- tate with it, the teeth of which pinions mesh with those cf an internal gear secured to a load sustaining drum rotatably mounted in the frame of the carriage, a vload line connected to the drum, a stop removably secured to the track at the desired limit of the inward and outward movement of the carriage, a pawl weighted to normally engage the teeth of the gear wheel ofthe drum, one end of which pawl is produced beyond its pivot to project beyond the adjacent end of the carriage and is bent upward to engage the stop at the outer limit of the carriage movement on the track, the other end of which pawl is upwardly turned and connected by a rod to one end of a bell crank lever, the other end of which projects beyond the other end of the carriage to engage the in-stop, a latch pivotally mountedk DAVID cook.