US548725A

US548725A - Traveling crane

Info

Publication number: US548725A
Authority: US
Publication date: 1895-10-29
Anticipated expiration: 1912-10-29

Description

(No Model.) 4 Smm-sheen 3.

W. RUSSELL.

TRAVELING CRANE. y No. 548,725. Patented Oct. Z9, 1895.

.W1TNESSES- INVENTOR( rrw I ,57 vl mi;

4: Sheets-Sheet 4.

(No Model.)

W.- RUSSELL. TRAVELING GRANE.

No. 548,725. Patented 051;. 29, 1595.

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Ewen/'Z022 IlNrrn-D STATES a ATENT FFICEO WILLIAM RUSSELL, OF CLEVELAND, OHIO.

TRAVELING CRANE.

SPECIFICATION forming part of Letters Patent No. 548,725, dated October 29, 1895.

Application filed November 15, 1893. Serial No. Ll=9l,03'7 (No model.)

To @ZZ whom, t may concern.-

Be it known that I, WILLIAM RUSSELL, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Traveling Cranes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled i'n the art to which it appertains to make and use the same.

My invention relates to a mechanism wherewith all of the movements incident to traveling cranes may be separately produced by a prime mover carried by a cage or frame, which is suspended from one end of the bridge. The construction shown in the drawings is especially contrived so that it may be operated by a man or men on said cage.

The invention consists in the construction and `combination of parts hereinafter described, and pointed out definitely in the claims.

In the drawings, Figure 1 is a side elevation of Iny improved traveling crane. Fig. 2 is a partial plan view of the same. Fig. 3 is a view of the mechanism supported upon the cage as it appears viewed from the left of Fig. l, and Fig. 4 is detail of the brake-band from the right in Fig. 3.

Referring to the parts by letters, A represents the bridge, which is of common construction, consisting of two beams a a. and the wheel-trucks a a', to which the ends of the said beamsare connected. Each truck is supported by two or more wheels a2 b, which rest and run on the fixed tracks F F. One wheel b of each truck is secured to a shaft B, which extends from one truck to the other and is mounted in suitable bearings in said trucks. By the revolution of this shaft in one direction or the other the traction-wheels b `b are correspondingly revolved and the bridge caused to move on said tracks F.

A trolley C, of ordinary construction, is mounted on tracks a3 d3 on the top of the beams a a.r Itis moved by means of a chain c, which is secured at its ends to opposite ends of the trolley and passes over the two wheels o c2, mountedon the bridge at opposite ends thereof. One of the said wheels c is a chain-wheel, and it is secured to a shaft c3, which is mounted on the bridge.

The hoisting-chain H is secured at one end to one end of the bridge. It passes over and down between two sheaves carried by the trolley, then over a sheave h, mounted on the bridge, and thence to the hoisting-drum J, which is mounted on the suspended cage D.

The cage D is suspended from the bridge, at one end thereof, and has a platform d, on which a man may stand to operate the main drivingshaft and the clutch mechanisms. Mounted in suitable bearings ou the cage-frame is a main driving-shaft E, having a crank or cranks e e, by means of which a man standing on the cage-platform may operate it. Looselymounted on said shaft nearits ends, respectively, are the two bevel-gears K and N. Secured to one side of the cageframe are two brackets d', in which Yis mounted a vertical shaft L, havingsecured thereto near its ends, respectively, the bevel-gears Z Z', the lower one of which meshes with the bevel-gear K. The bevelgear Z' meshes with a bevel-gear fr, secured to shaft R, which is mountedon the bridge. A pinion r on said shaft meshes with a gear c4 on the shaft c3. Only the lower bracket d is shown in the drawings, Fig. 3; but the position of the upper bracket d corresponds to the position of the upper bracket d2 on the opposite side of the cage, as shown in Fig. l.

A clutching device is provided for connectling the bevel-gear K with the shaft E. It

consists of a sleeve la on shaft E, secured thereto by a feather, which permits of its longitudinal movement. The hub of the bevelgear K and the sleeve la are provided on their proximate ends with jaws, which are adapted to interlock when the sleeve is moved against the hub of the gear, thereby fastening the gear to shaft E. The pivoted lever la', which engages with a groove in sleeve k, affords means for operating said sleeve. On the opposite side of the cage-frame are two brackets d2 d2, in which is mounted the vertical shaft T, having secured thereto near itsvends, respectively, two bevel-gears t t', the lower one of which meshes with the bevel-gear-N. The bevelgear t meshes with a` bevel-gear@` on shaft V, which is mounted in suitable bearings on one of the beams a. A pinion fu', also secured to said shaft, meshes with a gear son the shaft S, which is journaled in suitable IOO bearings on said beam a. On this shaft S is a bevel-gear s', which meshes with a bevelgear b on shaft B.

A clutching device n is provided for connecting the bevel-gear N with the shaft E, which clutching device is similar in construction to that previously explained for connecting the bevel-gear K to said shaft, and it includes the sliding sleeve n, which is operated by a lever n', similar to lever k.

A pinion G is loosely mounted on shaft E,

and a clutching device g,similar in construction and operation to those hereinbefore described, is provided for connecting it With the shaft E. Said pinion meshes with a gear w, secured to shaft W, which is journaled on the cage-frame. A pinion w', secured to said shaft W,meshes with a gearj, secured to the shaftj of the drum J.

A brake-band I is secured to the cage-frame. It embraces the hub of the pinion G, and it is tightened so as to grasp and rigidly hold said hub by means of a hand-wheel on a screw which draws the separated edges ofthe brakeband together. 'When this brake is set, the drum .I is prevented from revolving,'thereby upholding the load.

A gear G is loosely mounted on lshaft E and a clutching device g is provided for connecting them. A gear w2 is secured to shaft W- and meshes with gear G. The gears G and 1,02 are relatively of different sizes than the gears G and w, and either gear G or G may be secured to shaft. E, depending on the speed atwhich it is desired to run the drum J.

Having described my invention, I claiml. In a traveling crane, the combination of the bridge, a cage suspended from one end thereof, a shaft extending the entire length of the bridge and journaled in the trucks at its ends, traction wheels secured to said shaft and adapted to ride on fixed rails, with a vertical shaft journaled in brackets on the cage frame, a horizontal main shaft mounted on the cage frame, abevel gear loosely mounted on the main shaft, a clutching device for connecting said bevel gear to main shaft, a bevel gear on the vertical shaft meshing with the bevel gear last named, a bevel gear on the upper end of said vertical shaft, and gears connecting said last named bevel gear with the shaft carrying the traction wheels, substantially as and for the purpose specified.

2. In a traveling crane, the combination of the bridge, a cage suspended from one end thereof, a hoisting drum journaled on the cage frame, a main shaft likewise journaled on the cage frame, a gear loosely mounted on said main shaft, a clutching device adapted to connect said shaft and gear, a brake secured to the cage frame adapted to embrace the hub of said gear and thereby prevent its revolution, and mechanism connecting said gear with the hoisting drum, substantially as and for the purpose specified.

main shaft, clutching devices adapted to conneet either of said gears with the main shaft,

and mechanisms connecting one of said gears with the shaft B and the other with the hoisting drum, and a brake adapted to prevent the movement of the hoisting dru m, substantially as and for the purpose specified.

4. In a traveling crane, in combination, a bridge, a cage suspended from one end thereof, a horizontal main shaft E mounted on the cage and adapted to be driven by a prime mover on said cage, a bevel gear loosely mounted on said shaft, a pinion loosely mounted on the said shaft, independent clutching devices for connecting the bevel gear and pinion to said shaft, a drum mounted on the cage, ge'ars connecting said drum and pinion, a vertical shaft T mounted in brackets which are secured to one side of the cage, a bevel gear on its lower end in mesh with the bevel gear on the main shaft, a shaft B mounted on the bridge and extending from one end to the other of said bridge, traction wheels on said shaft adapted to run on fixed tracks, and gears connecting the upper end of the vertical shaft with the shaft B, substantially as and for the purpose specified.

5. In a traveling crane, in combination, a bridge, a cage suspended from one end there of, a horizontal driving shaft E journaled on said cage and adapted to be revolved by a prime mover on said cage, two vertical shafts L and T, journaled in brackets on opposite sides of the cage, bevel gears fixed to the lower ends of said vertical shafts respectively, two bevel gears loosely mounted on the main shaft in mesh respectively with the bevel gears on the vertical shafts, independent clutching mechanisms for connecting the main shaft'with the bevel gears thereon, a shaft B journaled on the bridge and extending from one end thereof to the other, traction 'Wheels secured to the ends of said shaft and adapted to run on fixed tracks, a trolley mounted on the bridge, a chain for moving it, a chain wheel shaft c3 mounted on the bridge, bevel gears on the upper ends of said vertical shafts, and gears connecting said bevel gears respectively with the shafts B and c3, substantially as and for the purpose specified.

In testimony whereof I affix my signature in presence of two witnesses.

VVILLAM RUSSELL.

Witnesses:

L. C. SHIPHERD, E. L. THURsToN.

IOO

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