US849257A - Hoisting apparatus. - Google Patents

Description

No. 849,257. PATENTED APR. 2, 1907.

L. MOSS.

HOISTING APPARATUS. APPLICATION FILED JUNE 29,1904.

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INVENTOR [Mao/n flow No. 849,257. PATENTED APR. 2, 1907. L. MOSS. HOISTING APPARATUS. APPLIGATION FILED JUNE 29,1904.

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PATENTED APR. 2, 1907.

L. MOSS. HOISTING APPARATUS.

APPLIGATION FILED JUNE 29,1904.

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INVENTOI? nnrrnn srArEs Parana, rice.

LINCOLN MOSS, OF NEW YORK,

N. Y., ASSIGNOR TO ROBINS CONVEYING BELT COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

HOISTING APPARATUS- No. eeaaer.

Specification of- Letters Patent.

Patented April 2, 1907.

Application filed June 29, 1904:. Serial No. 214,622.

vented certain new and useful Improve-- ments in Hoisting Apparatus, of which the following is a specification accompanied by drawings.

' My invention relates generally to hoisting apparatus, but has special reference to instrumentalities for raising and lowering and imparting lateral movement to clam-shell buckets and other carriers, and it includes novel devices for so opening, closing, and moving clam-shell buckets. i

The principal object of the invention is to produee a novel and ellicient hoisting apparatus in which the working forces are so counterbalanced that no tendency to run away is imparted to ahorizontally-movable rairriege or truck, in which means are provided for maintaining the bucket or other carrier at a constant height while moving lnteraiiy, and in which the reeving of the operating-ropes is such that the standing ,parts do not move inward with the carrier, so making it possible to use a boom for thecarrier-supporting truck having side trusses connected by braces over the tops of the trusses.

A further objectof the invention. is to reduce the amount of rope to be wound under strain in the operation of the apparatus, so lessening the expenditure of power and decreasing the required capacity of the winding-drums or other sources of power.

Several dil'l'erent forms of apparatus, all embodying the invention, are hereinafter described and are illustrated in the accompanying drawings, in which corresponding parts in the several figures are identified by similar characters of reference throughout;

In the drawings, Figure 1 is a perwective view of a hoisting-tower constructed accord ing to the present invention. Fig. 2 is a diagrammatic View showing the application of the invention to a flying bridge. Fig. 3 is adiagrammatic view showing another way of applying the invention to a flying bridge;

Figs- .5, and 6, diagrams showing separately the ways of reeving the bucket-closing cable, the buclrctdumping cable, and the truck iin-i-vcrsing cable. Fig. 7 is a diagram showing the arrangement of the bucket closing and dumping cables with two barrel-sheaves Fig. 8 is a view of a barrel-sheave for the production of difi'erential effects. Fig. 9 is a diagrammatic view showing the application of the invention to a crane of the mast and boom type.

Referring to the drawings, and more particularly to Figs. 1, 4, 5, and 6, 1 designates a tower which may be of any preferred construction. The tower is shown as comprising a plurality of upwardly converging members 2 2 2 2, mounted upon base timbers 3 3 3 3. A boom or runway 4 is supported by the tower 1 at a suitable height, 'its outer end being sustained by guys 17 17, and this boom or runway is.

preferably formed of two side members spaced and braced apart to form a track for a carriage or truck 5, provided preferably with wheels .6, mounted upon axles 7 near ,the ends of the carriage or truck. The carriage or truck may be moved inward and outward uponthe boom or runway by any suitable devices for that purpose; but for purposes of illustration I have shown a windingengine 8 at the base of the tower and a traversing cable 9 attached at its ends to the ends of the carriage or truck and passingover guide sheaves or pulleys 10 1.1 12. Intermediate of its ends the traversing cable passes several times around the drum of the engine'S, and

it is obvious that by turning the. drum in one direction or the other as desired the carriage or truck may be moved inward or outward along its track.

Betweenits axles the carriage or truck 5 i provided with a rotatable drum or barrelsheave 13. The ."barrel-sheave, as I pre fer to call it, has attached thereto-in the middle one end of the closing rope or cable 14 of a clam-shell or grab bucket 15. Near the ends of the barrel-sheave the ends of a rope or cable 16 for operating the barrel-sheave are attached Both ends of the operatingrope are wound around the barrel-sheave in the same direction; but from one'end the rope extends forward from the bottom of the barrel-sheave and from the other end the rope extends rearward from the top of the barrel-sheave. The rope 16 is rove around guide sheaves or pulleys 18 19 at the respective ends of the boom and around pulleys 20 21 in the top ofthe tower 1. In the bight ward movement 0 sheave 1s stat1onary-uponits axis and the engine 25.

of therope "16 a traveling sheave 22 is ear ned. A-rope 23 exterids from the traveling sheave to an a aratus for a l in ower thereto, such a lahe drum 124 35 gir fding- The dumping-rope26 of the bucket is shown'attached at both ends to the buckethanger and having the two leads thereof passing upward over guide-pulleys 27 28 onthe carriage 5 and thence around pulleys 29 30 at the respective ends of the boom and ulleys 31. 32 atthe top of the tower. In the 1gh t of the rope 26 a traveling sheave 33 is carried, from which a rope or cable 34 extends to the drum 37 of the engine 25.

The operation of the apparatus above d.e SCIlbGd may be easily understood from the drawings. The carriagebeing at the outer end of the boomor runway and the bucket lowered into the barge or other load-contamer, the winding of the rope 23 upon the drum 24 will draw the sheave22 downward,

.so causi the unwinding of the rope 16 from the barre -sheave and at the same time causmg the winding thereon of the rope 14, which closes and elevates the bucket 15. When the bucket reaches the desired elevation, the winding of re e23 is sto ped and the carriage 5-is move inward to bring the bucket over the ho per 36.- During the inf the' c'arriage the barrelrope 16 runs freely over its guide-pulleys and around the sheave 22. During the closing and "hoisting of the bucket the rope 34 is wound upon the drum 37, drawing the sheave 33 downward and maintaining some tension.

' upon the dumping-rope 26 in order to relieve the rope 14of a portion of the straindue to the weight of the bucket 15 and its load Whom the Black is taken up and the pull upon the rope 26 is transmitted to the bucket-hanger by slacking the cable 23 on drum 24, the

bucket-sections will be separated and: the load dumped. The carriage will then be moved outward to-the end of the boom and the bucket lowered, with the sections spread apart, by simultaneously allowing the ropes 23 and 34 to unwind from drums 24 and 37. During the outward movement of the carriage both the bucket closing and dumping cables will run freely over the guide-pulleys therefor and through the traveling sheaves 22 and 33.

1 In the operation of the apparatus as above described the length of cable which ,is wound -riage are balanced. By substituting for the winding-engine 25 other apparatus for drawing the sheaves 22 and 33 dowiiward'- spch-, for example, as that disclosed in my c0- pending application, Serial No. 191. .925, filed February 4, 19D4--allcable-win;iing may be eliminated except thewjnding of the rope 14 upon the barrel-sheave. v Inthe ap aratus illustrated in Fig. 1 the sections of t e barrel-sheave upon which the several leads of rope are wound are of the same diameter, and the rate at which the leads of the operating-rope are wound is the same asthe rate at which the bucket-closing rope is unwound at the same time. If, how ever, different rates of winding and unwind-. ingare desired in these ropes, the barrelsheave may bemade with portions having ,dill'erent diameters. Such a barrel-sheave 38 is shown in Fig. 8. In Fig. 8 sheaves 39 for two bucket-closing ropes are shown, the two ropes being arallel and serving to hold the closing-roll o the bucket parallel to the barrel-sheave. The ends of the operatingrope are attached to the middle portion of the barrel-sheave 38 and wound thereon in opposite directions. As a result of this construction rapid shifting is effected at'the expense, of power. By employing a single bucket-closing rope attached to the middle portion ofthe barrel-sheave and attaching the go ends of the operating-re e to. the two sheaves 39 a more 'powerf shift may obviously be obtained at the expense of s eed.

The application of the invention to' ying brid es is illustrated in Figs. 2 and 3, in 5 whic two slightly-diiierent arrangements of the elements of the invention are shown. The structures are illustrated diagrammatically only in these figures, as the details of construction may be varied indefinitely without departing from the spirit of the invention if the general arrangement, of partsis left unchanged. 0

Referring to Fig. 2, 40 designates a flying bridge of" any approved construction and 10 provided with a track ,41 for the carriage .42, which is similar in all respects to the carriage abovedescribed. The carriage-traversing cable or rope 43 is rove in the same manner that the cable 9 is rove in the apparatusal- I s 45, to which the bucket-closing rope is attachedin the manner already explained, presents forwardly and rearwardly extending :leads, the fprmer passing around a uidepulley" 46 at the front end of the trac and then around a smaller pulley 47 near the rear I 20 end pf the track, while the latter lead passes rearward and downward over a pulley 48 adjacent ind-,the, pulley 47 The bight of the rope 44 hangs downward and carries a travel-- ing sheave provided with means for drawing 1 5 it downward, as in the apparatus first aescribed. The bucket-dumping rope 49 has the twd leads thei eof rove over pulleys 50 51 on the carriage, and from the carriagethe front lead extendsforward around the; pulley 52 I33 and then rearward and downward over the pulley passes directly rearward and downward over a pulley 54, and in the pendent bight of the rope 49 a traveling sheave, providedwith means for drawing it downward, is suspended. The apparatus shown in F1 3 is designed to meet conditions under whic 1 it. is desirable that the bights of the operating-rope and the bucket-closing rope be disposed horizontally, and this apparatus shows the use of a barrelsheave for drawing the bucket-dumping ro e upward. In this form of apparatus t 1e bridge 55 presents a track 56 for the carriage 57, and supplemental tracks 59 are provided above the main track. The carriage 57 is provided with two barrel-sheaves 60 61,-to which are attached oper ating ropes 62 and 63, respectively. 'From the sheave 60 a bucket-closing rope extends to the bucket and a bucket-dumpin rope extends from the sheaves 61 to the buc iet. The front lead of the operating-rope 62 passes around a guide= track 58, and the rope extends rearward from the truck and downward over a guide-pulley to suitable winding mechanism. The operating-rope 63, attached to thebarrel-sheave 61, has the forward lead thereof carried forward around a guide-pulley 71 and then upward and around another guide-pulley 72. lhe back lead of the rope 63 is rove around guide-pulleys 73 and 74 near the rear end of the bridge and is then carried forward around a guide-pulley 75, then upward and around a guide-pulley 76. The bi ht of the rope 63 is engaged by a traveling s heave carried by a small truck movable along the track 69-, and a rope from this truck extends rearward and downward over a guide-pulley to suitable winding mechanism. The devices for trav ersing the truck or carriage 57 are shown as substantially the same as those shown in Fig. 2

The application of the invention. to a crane of the ordinary mast and boom type is shown in Fig. 9. In this figure a truck or carriage 77 is shown as mounted to travel on the boom of the crane. The truck or carriage 77 is provided with a barrel-sheave. 78, from which a load-supportingrope hangsdown- Ward, as in the forms of apparatus already described. The operating-rope 79 for the barrel-sheave has the forward lead thereof rove around a guide-pulley 80 at the outer end of the boom and is then carried backward and around a similar guide-pulley 81 upon the mast of the crane. The back lead The back lead of the rope 49 of the rope 79 extends rearward from the drum and passes around a guide-pulley 82. The bight of the rope 7 9. is pendent from the guide-pulleys 81 and 82, and in the bight a traveling sheave is carried. Any suitable device may be attached to the travelingsheave to draw it downward. V

The 0 eration of the several forms of apparatus il ustrated in Figs. 2, 3, and 9 18 so clearly obvious from the drawings and so closely analogous to the operation of the form of apparatus first described that specific description thereof is regarded 'as'unnecessary. I

While I have described and illustrated several slightly different embodiments of my invention, it is to be understood that the invention may be embodied in structures differing from those described in various'details' of construction. I do not, therefore, limit "myself to the exact structures disclosed, but reserve the right to make changes 'thereinwithin the scope of the invention, which is clearly de fined. in the claims.

Having thus described my invention, what I claim, and desire to secure by Letters Patentis v 1 1. In hoisting apparatus, the combination with a barrel-sheave or drum of a load-supporting rope attached to the-barrel-sheave or drum, and an operating rope or cable having both ends attached tosaid barrel sheave or drum and hothleads wound thereon in the same direction but extending from the barrelsheave or drum in opposite directions.

2. In hoisting ap aratus, a barrel-sheave or drum a flexible oad-supporting member attached to the barrel-sheave or drum, a flexible operating member having both ends attached to the barrel-sheave or drum and TOO wound thereon in the same direction but extending therefrom in opposite directions, and means engaging the bight of said flexible operating member to exert a pull thereon.

3. In hoisting ap aratus, a barrel-sheave or drum, a flexible oad-supporting member attached to said drum, a flexible operating member attached at both ends to said drum and having both leads wound thereon in the same direction but extending therefrom in substantially opposite directions, spaced guides for the leads of said operating. memer, and means in the bight of said operating member for simultaneously placing both leads under tension.

4. In hoistin apparatus, a barrel-sheave or drum, a loa supporting rope or cable attached to said barrel-sheave or drum, an operating rope or cable having both ends attached to said barrel-sheave or drum and wound thereon in the same direction butextending therefrom in substantially opposite directions, spaced pulleys for the leads of said operating rope or cable and means en gaging the bight of'said operating rope or or drum, a flexible load-supporting member attached to the drum, an operating r0 e or cable havin both endsattached to the rum and hav'in I) in opposite directions, guide-pulleys over which said leads pass and a traveling sheave disposed in the bight of said operating rope or cable to exert a pull thereon.

'orydrum.movable bodily, a load-supporting rope or cable attached to said drum, and an operating ropeor cable havin both ends attached to the drum and woun thereon in the same direction but extending therefrom in;

substantially opposite directions.

7. In hoisting apparatus, a barrel-sheaveor drum,-a load-supporting rope or cable attached to said drum, means for imparting bodily movement to said barrel-sheave or drum, and an operating rope or cable havin both ends attached to the drum and woun thereon in theisame direction but extending therefrom in substantially opposite directions.

8. In hoisting apparatus, ia barretsheave I 39 or drum, 8 load-supporting rope or cable 0th leads wound on the drum .in j the same irction but extending therefrom pendenttherefrom', a self-filling bucket car ried by said cable, a truck upon which said barrel-sheave or drum is supported, an operating rope or cable having both ends wound on said drum in the same direction but ex tending therefrom in substantially opposite directions, and a bucket-dumping rope or cable attached to said bucket and-extending upward to the truck.

In hoisting apparatus, two barrelsheaves or drums, a self-filling bucket, a

, rope or cable attached to one of said barrel- 6. In hoistingapparatus, a barrel-sheave sheaves'or drums and also attached to the closing-roller ot -said bucket, a rope or cable attached to the otherbarrel-sheave or drum and also attached to'the frame of said bucket and an o 'e'rating rope or'cable. for each of of said barrel-sheaves or drums but. extendsaid barre -sheaves or drums, said operatingropes each having bothends attached to one ing therefrom in substantially opposite fdirections. I

In" testimony whereof I havesigned this I specification in the presence of two subscrib mg witnesses;

I H [LINCOLN- oss. Witnesses:

fIvA'N LEESER,

, JAMES EyGoonnol n.

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