US798822A - Overhead-conveyer system. - Google Patents

Description

PATENTBD SEPT. 5, 1905.

J. P. & D. J. MDKAY. OVERHEAD GONVEYBR SYSTEM.

APPLIUATION FILED JAN.13. 1905.

WITNESSES:

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SHEETS-SHEET 1.

PAIBNTED SEPT. 5, 1905.

J. P. & D. I. MOKAY.

OVERHEAD GONVEYER SYSTEM.

APPLICATION FILED 3515.13. 1905.

W/TNESSES.'

No. 798,822. PATENTED SEPT. 5, 1905. J. F. & D. J. MOKAY.

OVERHEAD GONVEYER SYSTEM.

APPLIOATIOH FILED JAN. 1s. 1905.

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B 2m am@ @3% No. 798,822. PATENTED SEPT. 5, 1905. J. E. & D. J. MGKAY.

OVERHEAD GONVEYER SYSTEM.

APPLICATION FILED JAN. 1s, 1905.

4 SHEETS-SHEET 4.

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JOHN F. OKAY AND DAVll) J. MGKAY, (.)F HCVIE, LOUISIANA.

Speciiieation :f letters Patent.

Patented Sept. 5, 1905.

Application tiled January 13,1905. Serial No. 240.900.

To (1,7] 7172/0711/ HI/(rq/ (fon/cern:

Be it known that we, JOI-Ix F. MCKAY and Davm J. McK.\v,citiZens ofthe United States, and residents ot' Bowie, in the parish et' Lafourche and State ot' Louisiana, have invented a new and Improved Overhead-Conveyer System, ot' which the vfollowing` is a tull, clear, and exact description.

Our invention relates to certain improvements in overhead cableways or conveyors, especially those intended for conveying' or skidding' logs. These apparatus are g'enerally provided with a main or track cable on which a carriage runs, this carriage being' provided with an outhaul-line and with a skidding'line, one end of which is attached to the hoisting-engine and the other end aft'ter running' through a block on the carriage is provided with means for eng'ag'ingthelog's. Dit'- iiculty has been experienced in drawing' out this skidding'line at the end otl the outhauling' movement of the carriage, and our present invention contemplates a novel means for drawing' or paying' out the skiddingline after this outward movement of the carriag'e and preparatory to loading' or reloading' the same.

Our invention also contemplates an improved loading'carriag'e which is employed in connection with one ot' the g'uides for the main cable and which serves to permit loading' the logs on a wagon, railway-car, or other vehicle.

The invention also contemplates an improved tension-bloek which is employed in connection with devices for maintaining' the niain or track cable at the proper tension, and,

finally, we have provided an iniiproved double-block structure, attached to the carriag'e and accommodating' the skidding'line outhaul and also a peculiardetachable section for the skidding'- line, which detachable section g'reatly Vfacilitates the loading' ot the conveyer, all of which will be made fully to appeal' hereinafter.

Reference is had to the accompanying' drawdouble block which is applied to the carriage` to acconnnodate the skidding'dine and the skidding'line outhaul. said block on the line 3 3 of Fig'. 2.

Fig'. 3 is a section ot' Fig'. is

a .section on the line 4C 4 of Fig'. 2. Fig'. :3 is a side elevation ot' one et' the blocks employed in connection with the tension-line for the main cable. Fig'. 6 is a section thereof on the line G t ot' Fig'. Fig'. 7 is an end view of this block shown in Figs. andt. Fig'. S is a side elevation ot' the novel loadiiig-carriage. Fig'. 9 isa plan view ot the same, and Fig. 10 is an end elevation looking' in the direction of the arrow 10 in Fig'. S.

12 indicates a main cable which is attached to and supported by what are commonly known as the "head-tree1-1aud y"tail-tree 15. (.lableways ot' the type to which our invention relates are usually erected in the t'orest, and trees are employed for the cablesupport, although it is obvious that especially-erectral poles or any other such means could be employed. 'lhe main cable 1Q is attached in any suitable manner to the tailtree .'15, and it is connected to the head-tree 11 through the medium et' a tension-line 1G and tension-line blocks 17. This tension-line is rove over the blocks 17 down to a tensiondrum 18 in essentially the manner set t'orth in our prior patent for tension-reg'ulators for overhead cables, No. 757,052, dated April 19, 190%l 19 indicates a g'uy or g'uys for the tail-tree, and Q0 indicates a g'uy ior the head-tree.

The blocks 17 are of the peculiar construction illustrated in Figs. 5, 6, and 7. This structure comprises a shell formed of an integral casting` and comprising' cheeks 17", connected at their outer ends by a web 1'7" and joined at their inner ends by a head 17", having' an orilice .17l therein. 1'7c indicates a sheave which is carried on a pin 1`7f, the pin passing' throug'h the shell, as usual, and having' an oil-groove 17"r therein. This groove communicates with oil-pockets 17", Vformed in the shell o1" the block and having' oil-feeding' orilices leading to the outer surfaces thereof, as shown. lhe block is attached to its support or to the main cable, as the case may be, by passing' the strap or pennant or the big'ht of the main cable into thecavity 17l and around a pin 17. This pin is connected to the shell ot' the block by a chain 17 and is held in place by a linchpin 17, also connected to the shell by a chain 17".

21 indicates the skidding'carriag'e, which may be ot' any desired form and which acts on the main cable 12 in the usual manner.

indicates an outhaul-line which is attached to the carriage and rove over a block IOO lIO

23, attached to the tail-tree l5, thenee backrl to guide-sheaves 24, attached to the carriage 21, and over a block Q5, attached to the headtree 14, and thence down to a drum 26 of the hoisting-engine. By hauling in on this line 22 its lower run will be drawn outward, and with it the skidding-carriage 21 will move toward the tail-tree.

27 indicates the skidding-line, which passes from a drum 28 of the hoisting-engine upward over a block 2S) on the head-tree 14. At the point 30 the skidding-line is provided with an eye, and this eye is adapted to be engaged by sister hooks joined by a chain or otherwise to the end section 27 of the skidding-line. This end section passes through a double block 31, around the lower sheave thereof, and thence descends to the ground, it being provided at its lower end with a means 32 for engaging it with a log or logs. ln the ordinary operation of these apparatus when the skidding-line is engaged with the log it is hauled in, bringing with it not only the log, but the carriage 2l and its attachments. As the carriage is hauled out by the line 22 the log-engaging means jam in the block 31, and the skidding-line is hauled out with the carriage. At the end of this outhauling movementit is necessary to further haul the skidding-line, so as to drop the means 32 to the ground. For this purpose we provide a skidding-line outhaul 33, which is wound around the drum 34 of thehoisting-engine and passes up therefrom over a block 35, attached tothe head-tree. From this point the skidding-line outhaul 33 passes around the upper sheave of the double block 31, and thence back toward the head-tree and is spliced into or otherwise joined to the skidding-line 27 at the joint 36. New therefore after the operation of outhauling the shielding-carriage 21 and line 27 the drum 34 should be operated, causing the outhaul 33 to eXert on the skidding-line a further outhauling strain, drawing said line through the block 31 and dropping the tongs 32 or other log-attaching means to the grou nd, so that the tongs may be conveniently engaged with the logs.

rlhe peculiar double block 31 is illustrated in Figs. 2, 3, and 4. Said block comprises a cast-metal shell having cheek-pieces 81a, connected by webs 31h, as shown. These parts may be integral or otherwise and provided with stay-bolts 31C, as illustrated. 31 indicates a becket, which is swiveled onto the upper end of the block, as shown. The upper sheave 31C is mounted on a pin Blf and fits snugly between the cheek-pieces` and the lower sheave 31g is mounted on a pin 31h. Between these two sheaves the cheek-pieces are spread apart to form an enlarged space 311, which permits the sister hooks and chain on the upper end of the skidding-line end section 27 to bernoved freely through the shell of the block. In the operation of the apparatus a plurality of these end sections 27 are provided, and while one is being' employed to track or skid the logs toward the head-tree the workmen toward the tail-tree may be engaged in fastening another of said end sections 27 to another group of logs, so that when the skidding-carriage is returned for another load they have only to disengage the end section 27 first employed and reengage the sister hooks and chain of the second end section with the skidding-line, thus saving much time in loading' the conveyer. The peculiar forrn of the double block, particularly the enlarged opening 3l1 above the sheave 31g, greatly facilitates this operation.

The loading-carriage is mounted on the guy 2O of the head-tree 14 (see Fig. l) and comprises a body 37, bearing on the guy. 38 indicates a sheave adapted to run on the guy, and 39 a shell facilitating the connection with the carriage of a block 40, over which a loading-line 41 is rove. Said. line is provided in one 'end with tongs 42 or other means for attaching the logs, and aft-er passing' the block 40 the loading-line is reve over a block 43, and thence passes down to a drum 44 of the hoisting-engine. By this gear the logs may be hoisted onto the railway-car or other vehicle intended for the transportation of the timber.

The novel form of our loading-carriage is illustrated in Figs. 8, 9, and lO. The body 37 is formed with a groove 37 on its under side, which fits it snugly to the guy 20. U-bolts 37b are engaged with the body and pass around the under side of the guy to clamp the body firmly to the guy. At its upper end the body is formed with a fork 37C, carrying a pin 37. On this pin the sheave 38 is mounted. The shell 39 comprises two cheek-pieces 39, hung at their upper ends on the pin 37b and connected at their lower end with a pin 39h. vWith this pin the block 40 is engaged in any suitable manner. The sheave 38 bears the weight of the log` during the loading operation and also permits the carriage to be run freely over the guy during the operation of adjusting the carriage, for which purpose the U-bolts 37h are slacked. After the carriage is properly adjusted it is clamped fast by the U-bolts.

Having thus described the preferred form of our invention, what we claim as new, and desire to secure by Letters Patent, is#

1. In a cableway, the combination with head and tail trees or supports, of a main cable attached tothe tail-tree, a tension-line and winding means, sheaves for the tension-line, said sheaves and tension-line connecting the main cable with the head-tree, guys for the head and tail trees, a loading-carriage mounted to run on the head-tree guy, a loading-line engag'ed with the loading-carriage, a skiddingcarriage, an outhaul-line therefor, a skiddingline, a double block on the skidding-carriage over one sheave on which the skidding-line IOO .the other sheave ot' the double block.

Q. ln aeableway, the combination with head and tail trees or supports, ot' a main cable attached to the tail-tree, a tension-line and winding means, sheaves At'or the tension-line, said sheaves and tension-line connecting the main cable with the head-tree, guys for the head and tail trees, a loading-carriage mounted to run on the head-tree guy, a loading-line engaged with the loadiiig-carriage, a slviddingcarriage, an outhaul-line therefor, a shiddingline, a double block on the slvidding-carriage over one sheaveon which the skidding-line runs, and asliidding-line outhaul running over the other sheave ot' the double block, said skidding-line outhaul being joined at one end to the skirhling-line and having its other end adapted to have a hauling force exerted thereon.

23. ln a cableway, the combination with head and tail trees` or supports, ot' a main cable attached to the tail-tree, a tension-line and winding means, sheaves for the tension-line, said sheaves and tension-line connecting the main cable with the head-tree, guys `For the head and tail trees` a loading-carriage mounted to run on the head-tree guy, a loading-line engaged with the loading-carriage, a sliidding- Varriage, an outhaul-line therefor, a sliiddingline, a double block on the sh'idding-carriage over one sheave on which the Skidding-line runs, and a skidding-line outhaul running over the other sheave of the double block, the said sliidding-line being formed in two parts releasably connected together Yt'or the purpose specilied.

i. ln a cableway, the combination of a main cable, a carriage adapted to run thereon, a carriage-outhaul, a double block supported from the carriage, a sliidding-line running over one sheave ot' the block, and a sliidding-line outhaul having one end joined to the sliiddingline, said outhaul being' rove over the other sheave of the double block.

5. A skidding-conveyor having a sliiddingline l'ormed in two sections, with a releasable` connection between them Vfor the purpose specified.

6. lu a slidding-conveyer, the combination with a sliidding-carriage, ot' a block thereon, said block having a shell and a sheave, the shell having an enlarged opening above the sheave, and a sliidding-line adapted to run on said sheave and formed in two sections with a releasable connection between them, the said enlarged opening in the shell ot' thc block permitting the movement ot' said connection through the block.

T. A double block forcableways comprising a shell and two sheaves mounted thereon at different points along the length ot' the shell, and the shell having an enlarged opening between the sheaves, for the purpose specitied.

e. A double block forcableways,comprising an elongated shell, and a sheave mounted in each end portion thereof', the said shell having an enlarged opening between the sheaves, t'or the purpose speeih'ed.

i). Adouhle block lorcalileways,comprising an elongated shell, and a sheave mounted in each end portion otl the shell, the cheek-pieces of the shell ata pointbetwcen the sheaves being bulged outward from each other, to form an enlarged opening between the sheaves, for the purpose specilied.

10. In a cableway, the combination with a tree or support and its guy, ot' a loading-car riage body bearing on the guy, a sheave connected with the body and bearingon said guy, a hoisting-gear, and means l'or throwing the load otl said gear upon the sheave.

ll. 1n a cableway, the combination with a tree or support and its guy, otl a loading-carriage body arranged to bear thereon, a sheave bearing on the guy, a pin connectingthe sheave with the body, and a shell adapted to bear the load of the carriage and hung from the said pin.

l2. A cableway-carriage,comprising a bod)l adapted to bear on the cable, a sheave con nected with the body and also bearing on the cable, and means Yfor placing the load olE the carriage on the sheave.

.13. Acableway-carriage,comprisinga body adapted to bear on the cable, a sheave also I )earing on the cable, a pin connecting the sheave with the body, and means `for exerting a load on said pin.

14C. A cableway-carriage,comprising a body adapted to bear on the cable, a sheave also bearing on thc cable, a pin connecting the sheave with the slide, and a shell hung from the pin and adapted to head a load exerted thereon.

l5. A cablewayarriage, com prising a body having a groove to receive the cable, a U-bolt embracing the cable and attached to the body to clamp the body to the cable, a sheave engaging' the cable and connected with the body, and means 'for exerting' a load on the carriage.

16. A cableway, comprising a body having a groove in its under side to receive the cable, a U-bolt fastened to the body and embracing the cable, to clamp the body in place, a sheave adapted to bear on the cable, a pin connecting the sheave with the Slide, and a means t'or exerting' a load on said pin.

1T. A ca blewaycari-iage, comprising a body having a groove to receive the cable, a U-bolt attached to the body and embracingl the cable, a sheavc bearing on the cable, a pin connecting the sheave with the body, and a shell hung from the pin and adapted to have the load exerted thereon.

1S. In a cablcway, the combination of a main cable, a carriage adapted to run thereon, a carriage-outhaul for moving the carriage on the main cable in one direction, a skiddingline I'or moving the carriage on the cableway IOO in the other direction, the skidding-line being formed in two sections with a releasable connection between them, a hauling means with which the outhaul and skidding-line are connected, and a skidding-line outhaul actuated by said hauling means and joined to the skiddi-ng-line at the section thereof adjacent to the hauling means.

19. In a cableway, the combination of a main cable, a carriage adapted to run thereon, a carriage-outhaul adapted to move the carriage on the main cable in one direction, a skidding-line adapted to move the carriage on the main cable in the other direction, the skidding-line being formed in two sections with a releasable connection between them, a hauling means with which the carriage-outhaul and skidding-line are connected, a sheave supported b v the carriage, and a skidding-line outhaul in connection with said hauling means and rove over said sheave, and connected with the slidding-line section adjacent to the hauling means.

l 20. In a cableway, the combination of a main cable, a carriage adapted to run thereon, a carriage-outhaul, a double block supported on the carriage, a skidding-line rove over one sheave of said block and formed in two sections with a removable connection between said sections, a hauling means with which the outhaul and skidding-line are connected, and a skidding-line outhaul actuated by the hauling means and rove over the second sheave of the double blocl; and connected to the skidding-line at the section adjacent to said hauling means.

21. In a cableway, the combination of a main cable, a carriage adapted to run thereon, means for moving the carriage on the cable in one direction, a double block attached to the carriage, a skidding-line rove over one sheave of the block, and a skidding-outhaul rove over the other slieave of the double block.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

JOHN F. MCKAY. DAVID J MCKAY. Witnesses as to the signature of John F. McKay:

IKE ROLAND, Jos. DoHAoK. Vitnesses as to the signature of David J. McKay:

G. L. GATES, H. F. ROBERTS.

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