US894717A - Hoisting apparatus. - Google Patents

Description

No. 894,717. 3 v I PATENTED JULY 23, 1908.

J. D. AUSTHL- HOISTING APPARATUS.

APPLICATION FILED SEPT. 20, 1907.

3 SHEETS-SHEET 1.

PATENTED JULY 2 1908. D. AUSTIN.

HOI'STING APPARATUS.

APPLICATION FILED SEPT. 20, 1907.

3 SHEETS-SHEET 2 JOHN D. Arsrmor TAMPA, FLORIDA.

noxsrme APPARATUS.

Specification of Letters Patent.

' Patented July 28, 1908.

Application filed September 20, 1907. Serial No. 393,837.

cables are employed for moving the bucket between th loading and unloading points.

The principal object of the invention is to provide a mechanism in' which separate winding drumsarc employed for the cables and in which provision is made for so mounting and connecting thevarious drums as to place them under ready control, s that the engineer may hold the hauling cable sta tionary while raising or lowering the hoisting cable, or may operate the drums in such manner as to wind on any drum while paying out on the others, or wind on two drums while paying out on the third! A further object of the invention is to provide for the operation of the drums'at different speeds, and to check the movement of one or more of the drums while allowing the remaining drum or drums to continue in operation. v

.A'still further object of the invention is to provide for the employment of an auxiliary winch drum, which may bebroughtinto play in the erecting of derricks, for the removal of obstructions, or other purposes.

With these and other objects inview, the invention comprises the various novel fea tures of construction and arrangement of parts,-to be hereinafter more fully described,

and pointed out particularly in the appended claims. I In the accompanying drawings:--F1g'ure 1 is a side elevation of a hoisting apparatus constructed in accordance with the invention. Fig. 2 is a plan view of the same. Fig. 3 is a transverse sectional view on the line 33 of Fig. 2. through the lower counter-shaf t for connecting the train of gears at one end of the drums to the set of gears at the opposite ends of the ters of reference.

Fig. 4 is a'transverse sectional view The working parts of the apparatus are supported in a suitable frame ltlthat is provided with journal boxes 11 12 arranged in pairs. In each pair of journal boxes mounted a shaft, three of such shafts, 15, 16

and 17, being e1nployed,.,and all of these being disposed in parallel relation and at equal distances apart. v

Secured to the shafts are gears 18, 19 and 20, the gears being of uniform diameter and forming a continuously intermcshing train. Atone end of the frame is journalcd a shaft 22 provided at its opposite end with cranks 23 which areconnected by rods 24 to any suitable source of power, a pair of steam engines being usually employed, and this shaft 22 is .driven continuously. On "the shaft is mounted a loose pinion 26 that is in constant mesh with the gear 18. The hub of the pinion has a clutch face which may be engaged by a clutch 27 formed at one end of a sleeve 28' that is feathered to the shaft. On the sleeve is secured a peripherally grooved collar 29 with which engages an operating lever 30 that is connected by'a rod 31 to a manually operable lever 32 arranged at one side of the apparatus within convenient reach of the engineer. The lever is provided with the usual latch bolt 33 arranged to engage a notched locking quadrant 34 for the purpose of holding the clutching sleeve in adjusted position. Mounted loosely on the three shafts 15, 16 and 17 are winding drums 37, 38 and 39, respectivcly, and on these drums may be wound ahauling cable 40, a haulingcable 41, and a hoisting cable 42. That end of each drum adjacent the gears 18,, 19 and 10 is providedwith a friction ring 44 which, when the drum is moved endwise on the shaft, will be forced into frictional contact with the adjacent gear, so that the drum will receive motion from said gear" At the engineer side of the apparatus, each of the shafts is provided with an axial bore for the reception of a thrust pin 45, the inner end of which extendsv out radially through a slot 46 in the shaft and thence is turned inward, forming an arm 47 that engages against a slidablc collar 48 mounted loosely on the shaft and arranged to engage against the adjacent end of the drum. The

thrustpin projects some distance beyond the.

end of the shaft and is entered in a socket formed in a thrust screws?) that passes througlra threaded opening formed in a yoke 20 or more of the drums while permlttmg rota- 50 that is rigidly secured to the frame. The outer end of the screw is secured to a handled crank 51 which may be turned by the engineer for the urpose of forcing the thrust pintnward and thus moving the drum longitudinally of the shaft until the friction ring .at the end of the drum is pressed firmly against the gear wheel.

When the device is operating, the respective directions of rotation of the gears 18, 19 and 20 willbe as shown by the arrows in Fig. .1, and any of the drums ma be coupled to the gears for the purpose of winding up or paying out the cables. The directions of movement may be altered by reversing the engine, although this is not necessary, inasmuch as the reverse motion may be accomplished'by other means, as will hereinafter a pear. Provision is also made for changing tl fe direction of rotation and for stopping one 7 tlve movement of the others.

' carried by a small roc j clutching teeth 68 arranged It is h l'ear that both drums 37 and 38 may be released from their gears while the drum 39 is still locked to its gear, so that the hoisting operation may proceed while the'hauling cables remain stationary, or the hoisting drum may remain idle while the hauling dmms continue in 0 eration.

For thepurpose o positivel locking any of theidrums from rotating in either direction, each drum has an annular locking rack with which engages a awl 56, the pawl being shaft 57 journaled in suitable hearings in the frame and provided at the enginee'rs side of the apparatus with a pedal lever 58. The pawl is so arranged as to normally assume an inoperative position by gravity, and its downward movement is stopped by the engagement of the pedal lever with a pin or lug 59 projecting from the side of the frame. Provision is also made for checking the speed of the hoisting drum 39 and for this purpose the flange60 at the end of the drum is encircled by a hand brake 61 one end of which is operatively connected to a rock shaft 62 that is provided with an operating pedal 63 at the engineers side of the ap aratus.

0 that end of the drum 37 opposite the gear 18 are secured two gear wheels 65 and 66, which, in the present instance, are shown as integral with the drum. The gear 66 is in constant mesh with a inion 67 that is mounted loosely on the s aft 22, and the hub of this pinion is provided with a clutch face that is arranged to be engaged by at the end of the sleeve 28, it being observed that said sleeve maybe moved in the direction of its length for the purpose of clutching either of the pinions 26 or 67 to the shaft. The pinion 26 is of much smaller diameter than the pinion'67, and the two gears 18 and 66 are of proportionate diameter so that the drum 37- connected by a rod 97 to the pinion speed when the h a gear 70 of a diameter equal to that of the gear 65, and

these two gears may be connected with each other by a pair of pinions 71 that are carried by a longitudinally movable shaft 72 mounted in suitable bearings in the frame, one of the pinions being secured to other being loose thereon, while the :idjzu'went faces of the pinions have friction clutching faces. That end of the shaft 2 which pro-- jeets beyond the engineefs side of the amin ratus is provided with an annular groove 73 for the reception of a fork '74 that is cnrrird by a lever 75 fulcrumed rying an ordinary latch engaged with a notched locking quadrant 76 for the purpose of holding the lever in any position to which it may be adjusted. By operating the lever, the shaft 72 may be moved in the direction ofthe plate for the purpose of engaging the two gears 65 and 70, and when the gears are thus in mesh, the two drums 37 and 38 will be rotated at the same speed and in the same direction, whereas if connected to the gears 18 and 19, they will move in opposite directions and at a much lower rate of s eed.

To that end of the drum 39 opposite the gear 20- are secured two gears 80 and 81, and the gear 80 may be connected to the gear 70 by means of a pair of pinions 81 and 82 carried by a shaft 83 that is journaled in beerings between the two drums 38 and 39. The gear 81 is rigidly secured to the shaft while the pinion 82 is loose on the shaft. These two pinions are provided with friction disks 84 that preferab y ribs in order to increase the extent of frictional contact with each other. The outer end of the shaft 83 is provided with a peripheral groove 86 that is engaged by a fork 87 carried by an operating lever 88, the latter having a latch bolt arranged to engage with a notched locking quadrant 89. When the shaft is pulled outward, the two pinions are moved into frictional engagement with each other and the gears 70 and 80 are thus connected.

Mounted in suitable hearings in the frame at a point below the drum 39 IS a shaft 90 to one end ofwhich is rigidly secured a pinion 91 that is in constant mesh with the gear 20. At 'the opposite end of the shaft 90 is a loose pinion 92 that is in constant mesh with the gear 81. The inner face of the iinion 92 has a conical frictional face with wiich engages a 'correspondingl shaped disk 93 that is arran ed at the en( of-a sleeve 94 that is feathcred on the shaft 90. The sleeve carries a peripherally grooved collar 95 that is 01rgaged by-a forked lever 96, the latter being a manually operthe shaft and the are provi d ed" with radial sited lever 98 having an ordinary latch bolt that is arranged to engage a notched locking quadrant 19. By moving'the sleeve 94 the.

train of gears 1 .1%, 19 and 20 and pinion 91, to-

the pinion 9'2, gear 81 and the drum 39, so

that the drum 39 may be turned at a higher rate of speed than when it is connected to and driven direct fromthe gear 20, and, if necessary, this movement may be transmitted through the gearing 80, 81, 82 and 70 to the drum 38, and transmitted further through the gearing 70, 71 and 65 to the drum 37, so that it is possible to individually drive any drum in either direction and at different s eeds, and any one drum may be stopped w ile the others are operated, or any two drums may be stopped while the third continues in operation, so that the apparatus is under thorough control and the bucket or other conveyor may be mani ulated for the carrying of loads at any spec On one end of the shaft 1 6 is mounted a loose winch drum 100. The hub of the drum is provided with clutch teeth which may be engaged by a clutching-sleeve 101 that is feathered to the shaft. The clutch sleeve is under the control of a clutch lever 102 that is connected by a rod 103 to a manually operated lever 104 on the engineers side of the apparatus.

The winch drum is adgantageous in that it may be employed in the erect on of derricks, for the removal of obstructions, ior other purposes, when required, and, if necessary, each of the main shafts maybe provided with one of these winch drums. r I

I c-laim:- 1 I y 1. A machine of the charaeerdescribed comprising a series of winding drums, a train of gears arranged at one end of said drums by which said drums may be driven at' a given speed, a set of gears arranged at the opposite ends of said drums for imparting thereto a dif'ferent'rate of speed, intermediate pinions forming a part of said set of gears and adjustable to connect the latter in a continuous train, an operating shaft,-loose driving pinions carried by said shaft and connected one to the trainof gears and the other to the set of gears, and means for coupling either of said shaft.

2. A machine of the character described embracing a series of winding drums, a train of intermoshing gears arranged at one end of said drums, means for individually/couplmg said drums to said gear, s aidtrai'n of gears" being adapted to rotate said pinions to said operating ment from the power shaft to the train of ions arranged between the adjacent gears of the latter set, an operating shaft, loose driving pinions carried by said shaft and connectat a'given rate of speed, a set of gears of different rate of speed transmitting capacity arranged at the opposite ends of said drum, intermediate individually adjustable. pinions arranged between the adj acent gears of the set, and serving to couple two or more of the gears in. a train, an" o cratim shaft, loose driving pinions carrie by said shaft and connected one to the train of gears and the'otherto the set of gears, and means for can ling either of said pinions to-said driving s a t. 1 I

4. In combination, a series of winding drums, a train of intermeshing gears arran ed at one end of the drums andto' which -sai drums may be individuallycoupled, the

second gears disposed at the oppositeends of the drums, individually adjustable pinions intermediate the gears of the set and serving to couple two or more of the drums in a train, an operating shaft, loose driving pinions cari lied by the shaft and connected one to the train of gears and the other to the set of gears, and means for coupling either of said pinions to said driving shaft.

5. In combination, a series of winding drums, a trainof gears arranged at one end of the drum, means for individually coup- .ling the drums to their respective gears, a set.

of disconnected gears arranged on the opposite ends of the drums, intermediate pinions for connectin adjacent gears of the set, an operatin sha t, loose driving pinions carried by said s aft and connected one to the train of gears and the other to the set of gears, and

means for coupling either of said pinions to said operating shaft.

6. In combination, a frame, a plurality. of shafts journaled therein, a train of gears secured to said shafts, drums mounted loosely on the shafts and arranged to be connected ,to and disconnected from said gears, a power shaft, means for transmitting movegears/Ilisconnected gears permanently secured to' the drums, means for transmitting movement from the power shaft to one of the drum gears, and independently adjustable means for connecting the gears of adjacent drums and means comprising an op- 7. In combination, a frame, shafts journaled therein, a train of gears secured to said shafts, a power shaft, means for transmitting movement from the power shaft to the train of gears, a plurality of drumsmounted loosely on the shafts, independent means for coupling the drums to the gears, a toothed Wheel on each drum, a pawl arranged, to engage therewithand lock the drum from rotative movement, a hand brake for one of the drums, disconnected gears carried one by each of the drums, intermediate pinions adjustable to couple the gears of adjacent drums, auxiliary gears car a plurality of ried by the end drums, means for one of said auxiliary gears to the power shaft, :2. countenshaft, means for connecting the train' of gears through said counter shaft to the second auxiliary gear, a loose winch drum carried by one of the shafts, and means for coupling said winch drum to the shaft.

' In testimony that I claim the foregoing as my own, I have hereto alfixed my signature in the presence of two witnesses.

' JOHN D. AUSTIN Vvitncsses JAs. M. WALKER, JNo. E. PARKER.

coupling 15

Images