US1994963A - Cableway load carrier - Google Patents

Description

March i9, w35. s. SAMSON CABLEWAY LOAD CARRIER Filed Oct. 15. 1934 2 Sheets-Sheet l 5. SAMSON l TTU/@NEW March 19, 1935.

s. sAMsoN CABLEWAY LOAD CARRIER Filed Oct. l5. 1934 ,2 Sheets-Sheet 2 Patented Mar. 19, 1935 1 l Y 1,994,963 j UNI-TED STATES PATENTl OFFICE," f Y 1,994,963 1 CABLEWAY LOAD CARRIER' Y 'Sani Samson, Stevenson,V y Almlicatiqn october 15, 1934, serial No. '143,353V `e Claims. (C1. 21g- 109) f This invention relates generally to cableway which is permanently made fast` to the .load line systems, and particularly to a cableway load car- 16 (as shown in Fig; 9) or. in any other convenient rier. manner. In this instancethe line 16 is enlarged The main object of this linvention is the conby the insertion of a pin 22, the ferrule 21having struction of a device for holding fast to a load been rst slipped into position and thenaiilled .'5

that has been hoisted preliminary to being transwith zinc or other soft meta123. r 1 ported by an aerial cableway. Between theupper ends .of theV cheeks 18. are The second object is the construction of a .mounted the two guide sheaves 24 between which device of the class described which will be' simple the cable 16 is held, or'is permitted to move l0 to construct, positive in .operation and independwhen not otherwise prevented." vAlso Supported 10 ent of accurate manufacture forits successful by the cheeks 18 are "the horizontal shafts-"25 operation. which pivotally support the depending arms-26 ,y The third object is to construct the mechavonwhose lowerends 27V areA formed-'the jaws nism Vin a manner vthat the load is always un- 28 each of which hasa semi-circular'opening 29 l Vder full control and it cannot be accidentally which is` approximately the diameter of theline 15 lowered without rst raising the load a short 16. n distance. n 1 Extending upwardly. from the arms 26 are the These, and other objects, will become `more toggle arms 30 between whosefupper ends are apparent from the specification following as ildisposed the toggle links 31 between whose. forked lustrated in the accompanying drawings, in ends 321the line 16 freely passes through `.the 2O which: opening 33. The links 311are limited in their Fig. 1 is a side elevation of the device showing upward or locking direction by means of thestops the parts in position for the rope to descend or `34 which are formed on the 'toggle rarms 30. The vthe cable being pulled up with the load. arms 26 are urged apart by means of the springs Fig..2 is a section taken along vthe line 2-2 35 on the adjustable rods v36.`vv Stop .screws 3'7 25 -in Fig. 5 showing the load line pulled al1 the way are provided which limit .the swinging movement up with the tackle in a locked position. of the arms 26 in either directionz* f Fig. 3 is a View similar to Fig. 2 showing the On each shaft 25 is mounted a pairof rocker tackle in a partially. broken position. arms 38 between which is placed a hub 39.v The Fig. 4 is a section taken along the line 4-4in outer end of each pair of rocker arms 38 iscon- 30 Fig. 2. nected by means of the slotted .links 40 to a Fig. 5 is an end elevation of the device. horizontal cross bar 41. vEach bar 41 'is Vcon- Fig. 6 is a section taken along the line 6-6 in nected at an intermediate point to a connecting Fig- 2- bolt-42 of the toggle links 31. On theinnermost Fig. '7 is a section taken along the line 7-7 in end of each pair of rocker arms 38 is pivoted an 35 Fig- 3. I angular latch 43 whose jaws 44 are urged toward Fig. 8 is a section taken along the line 8 8 in a stoppin 45 -by means of a spring V467." .l Fig. 2. The outermost ends of the arms 38 are Vurge Fig. 9 is a section through the ferrule on the upwardly by means of a spring 47 which re-acts load line. Y against a lug 48 which is attached to the hub 4() Similar numbers of reference referto similar 39 of the arms 26 and 30. parts throughout the several views. VThe operation of the V'device-is as follows: As-

Referring in detail to the drawings, there is suming the partsto be in the positionshown in' shown'a common form of cableway 10 on which Fig. 1 in' which the line 161s beingloweredto pick 45 is mounted a carriage 11 which includes the up a loadand that theload'has `been attachedv 45; wheels 12, aclevis 13 for the haul-back line 14, and the line is again being raised andthe ferrule and a sheave 15 for the haul-in or load line 16 21 has reached the position shown, the hoisting which may be operated by any suitable cable operation can be continued until the ferrule 21 winding mechanism. engages the links 31, moving them to the position Attached to the sides of the carriage 11 are shown in Fig. 2. This, however, forces the jaws 50 the straps 17 from which are suspended the cheek 28 to approach each other and prevent the ferpieces 18 which are held in spaced relation by rule 21 from again passing downwardly through a tie bar 19 at the lower end thereof. The tie the lthroat 20, the load being carried by the jaws bar 19 has formed therethrough a throat 20 28. through which may freely pass the ferrule 21 Should it be desired to lower the load itis nec- 55 Vessary to hoist the line 16 sufciently'far to bring the ferrule 21 into contact with the jaws 44, causing same to rock the arms 38 pulling the bar 41 downwardly, thereby breaking the toggle links 31 and separating the jaws 28, after which the line 16 may be lowered since the ferrule 21 can now pass freely through the throat 20.

It can be seen from the foregoing that there is provided a positive means for holding a load in an elevated position where it will be locked and held as long as desired, regardless of the. movements of the carriage 11, and that before the load can again descend it must be positively re-I leased by a lifting movement of the line 16.

It will also be observed that there is'nothing intricate in the mechanism or the operation therev of, and no special degree of skill isV necessary to successfully operate the device; nor can it be' ac# cidentally released and the load dropped, since any movement which releases it makes it necessary that the loadbe supported by the hoisting drum, and therefore when the load is not being supported by the device `it is being supportedby the hoisting drum, making it extremely safe in its loperatio-n.

I claim: 1. A cableway load carrier consistingV of a carriage, a pair of: cheek platesl suspended from said carriage, a pair of pendent hinged arms mounted between saidcheek plates the lower ends of which have jaws formed thereon,.a hoisting line passing over a sheave in said carriage and down between saidjaws, said hoisting line havinga ferrule fixed thereon. adapted toY pass between` said jaws when separated or to vbe supported on the top side thereof when the jaws are closed, a toggle lever attached to each of saidpendent` arms, toggle links between the upper ends of said levers, yieldable jaw members in the path'of said ferrule having operating connections to said toggle links wherebythe ,upper travel of said ferrule against said yieldable jaws will break said toggle links and separate said first mentioned jaws.

2. A cableway load carrier consisting of a carriageadapted toy operate on a standing line, a haul-back line for moving said carriagein one direction, a load supporting haul-in line passing over a sheave on said carriage, togethenwith a arms having an upwardly extending toggle arm,

toggle links connecting theY upperends offsaid toggle arms,V a ferrule on said haul-inline adapted to pass through said throat at the bottom of said cheek plates and to pass'between saidpend-` ent arms when separated, `rocker arms mounted onsaid cheek plateaeach of said rocker arms having a spring-urged angular jaw pivotally mounted, thereon in the path of said ferrule, ,and connecting means between said rocker' arms and said' toggle links whereby the upward movement of said ferrule causing said toggle links to lock will cause said pendent arm jaws to approach each other on the under side of the ferrule for the Vpurpose of supporting a load and whereby an upward movement of said ferrule from a load supporting position will cause said ferrule to engage said angular jaws and move said rock levers in a manner to break said toggle links and separate the lower ends of said pendent arms.

y 3.? Acableway load carrier including a pair of spaced cheek .plates having a pair of guiding sheaves at Ythe upper end thereof and a spacer throat at the lower end thereof, a load line passing between said sheaves and through said throat, 4said load line having a ferrule thereon adapted to pass through said throat, hinged pendent arms on opposite sides of said line having jaws on the lower-vend thereof upon the upper side of which said ferrule can rest when the jaws are closed,

toggle links between the upper ends of said pendent arms throughwhich links the portion of said load line above said ferrule can pass, a cross bar whose intermediate portion is attached to said toggle links,rock levers supported by said cheek plates for actuating said cross bar, and a pair of angular vjaws on opposite sides of said load line y L 6., A cableway load carrier consisting of a carriage adapted tooperate ona standing line, a load line having a sheave mounted on said carriage and having the end thereof depending from said sheave, a load line having-a ferrule thereon spaced from its load supporting end, apair of cheek plates supported by said carriage having line guiding sheaves at theupper'erid thereof and a line guiding throat at the lower end thereof, said throat being large enough to permit the passage of said ferrule-pendent arms on'opposite sides of said line having line-engaging jaws at the lower end thereof and having a spring for urging said jaws apart,togg1e arms extending upwardly from said' pendent arms,l toggle links connecting the upper ends of said toggle arms, said toggle links having the intermediate portion thereof surrounding said load line above said ferrule, va rockerarm coaxial with each pendent arm, each rocker arm having an angular jaw yieldably ,mounted on the inner end thereof and having a slotted link connected to the outer end thereof,

yeach.of,said slotted links being attached to a transverse bar joined at an intermediate point to said togglel links, and spring means for urging said angular jaws and their attached rocker arms apart.

f Y SAM SAMSON.

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