US432977A - Hoisting and conveying apparatus - Google Patents

Description

(No Model.)

F. L. CHAMBERLIN.

HOISTING AND CONVEYING APPARATUS. No. 432,977. Patented July 29, 1890.

UNITED STATES PATENT OEEICE.

FRANKLIN L. CIIAMBERLIN, OF CLEVELAND, OHIO.

HOISTING AND CONVEYING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 482,977, dated July 29, 1890.

Application filed February 19, 1890. Serial No. 341,078. (No model.)

To all whom it may concern:

Be it known that I, FRANKLIN L. CHAMBER- LIN, of Cleveland, in the county of Cuyahoga and State of Ohio,have invented certain new and useful Improvements in IIoisting and Conveying Apparatus; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in hoisting and conveying apparatus, thc same comprising a carrier suspended from an elevated track, the carrier being provided with hoisting-drum and traction-wheels and cage for the operator, the power being supplied by a running endless cable, the different levers for operating' the brake, clutches and shifting mechanism being within the control of the operator, whereby the power of the running cable may be transmitted to the hoistingdrum or to the traction-wheels.

In the accompanying drawings, Figure l is a rear end elevation, the cage and track being in section. Fig. 2 is a side elevation. Fig. 3 is a plan on bent line 0c, Fig. 2.

A A are the track-rails of the truss, and these may be inclined or horizontal, whichever Inay be advisable under the circumstances.

B represents the carrier-frame constructed, preferably, of metal and of such form as will accommodate the mechanism mounted therein, and including a cage or seat for thc operator. The carrier is supported by wheels B, traveling on tracks A aforesaid, and at least one set of these wheels being connected by an axle bearing a sprocket-wheel b, the latter being connected by endless chain b to sprocket-wheel g. In case the track is on an incline it may be advisable to provide two such axles, and connect the same by means of sprocket-wheels and chain, so that both of wheels B may serve as traction-wheels.

Beams B2, connected with the carrier-frame, extend lengthwise the track-rails and are provided with suitable boxes in which are journaled the trunnions of wheels b2, these wheels engaging or coming close to the under side of the track-rails A to prevent the possibility of the carriers tilting or flying the track.

C is an endless running cable for transmitting power to the carrier, this cable being supposed to extend to the power-station on the one hand and to pass around an idlesheave C,located at the other end of the track. The cable engages sheaves c c of the carrier, and from thence passes around sheave D', the latter being rigidly mounted onthe drivin g-shaft or power-transmitting shaft D. On shaft D is also mounted pinion B2 and beveled friction-wheels d d. These beveled pinions are arranged in the reverse order shown for engaging in common the bevel friction-wheels 7L, the latter being mounted on the upright shaft H. On the upper end of this shaft is mounted bevel-gear II', engaging bevel-gear g', the latter, together with sprocket-wheels g aforesaid, being mounted on shaft G. The lower journal-bearing of shaft H may be a sliding box, but is preferably an eccentric-box, having attached levers JL for turning the box on its axis to cause wheels h to engage alternately wheels d d for reversing the traction-wheels B. Then this lever is in its central position, there is sufficient clearance between these frictionwheels, whereby the traction-wheels and connected mechanism remain stationary.

E is the drum on which the hoisting-cables I I are wound, the drum being loose on shaft F with collars or other devices for holding the drum endwise the shaft. At the onc end of the drum is a friction-wheel E2, embraced by a sectional friction-band J, the different sections thereof being connected by boltsj. These bolts have right and left handed screwthreads engaging correspondingly screwthreaded holes in the friction-band sections. Each bolt is provided with a short arm y", and these arms are connected by links j2 with the extremes of spider K, this spider being mounted loosely on the shaft, but held from turning on the shaft by means of the wellknown device of groove and spline. The spider hub has an annular groove Z: for engaging the prongs of forked lever O for shifting the spider endwise on the shaft, by which movement of the spider bolts j are turned a trifle, but enough to expand or contract the friction-band in loosening or grasping wheel E2. This friction-clutch mechanism is well IOO ` vided with friction-wheels E', embraced by friction-band L. rlhe ends of this frictionband are provided with holes screw-threaded, respectively, right and left handed for engaging the correspondingly screw-threaded section of rod l. By turning this rod on its axis in the one direction or the other the friction-band is loosened or tightened. The free end of rod lis provided with a handle Z for operating'the same. On shaft F is rigidly mounted gear F', engaging intermediate gear f, the latter in turn engaging pinion D2 aforesaid. Vith such construction, and cable C being continuously in motion, it is evident that shaft F will continuously revolve, and hence by operating lever O frictionband J may at any time be operated for raising the load, and whenever the load is raised to the desired position by reversing lever O and simultaneously operating rod Z friction-band J is-loosened and brake-band L is tightened, whereby the load is held suspended. Meanwhile the carrier, by manipulating lever 7L', is moved along the track to the desired point, whereupon the load is lowered by loosening brake-band L.

That I claim isl. The combination, with a track and a carrier thereon, the latter having a hoistingdrum and traction-Wheels and a power-transmitting shaft, of a running cable passing around the power-transmitting shaft on the carrier, and mechanism for connecting the hoisting-drums and traction-wheels with the power-transmitting shaft, whereby either can be operated by said shaft.

2. rlhe combination, with a track, a carrier thereon, the latter having a hoisting-drum, traction-Wheels, a power-transmitting shaft, gearing connecting the power-transmitting shaft with the traction-wheels, gearing connectin g the power-transmitting shaft with the hoisting-drum, and mechanism for disconnecting said gearing, whereby the tractionwheels or hoisting-drum can be actuated independently, of a running cable for actuating the power-transmitting shaft, substantially as set forth. Y

In testimony whereof I sign this specification, in the presence of two Witnesses, this 6th day of February, 1890.

Gli-IAMBERLIN.

FRANKLIN L.

NVitnesses:

C. Il. DoRER,

WILL B. SAGE.

Images