US722426A - Trolley-wagon. - Google Patents

Description

No; 722,426.- 7 PATENTED 10,1903. G. H. HULETT.

TROLLEY WAGON.

APPL'IOATIO'N FILED JULY 11. 1902.

z SHEETS-SHEET 1.

H0 MODEL.

lNVEN-TOR PATENTBD MAR. 10, 1903.

G. H. HULETT TROLLEY WAGON.

APPLICATION FILED JULY 11. 1902.

= 2 SHEETS8HEET 2.

I0 HODEL.

' [NVEQTOR 6V supported in the frame.

UNITED STATES.

' PATENT OFFICE.

GEORGE I-I. HULETT, OF CLEVELAND, OHIO, ASSIGNOR OF ONE-HALF TO THE WEBSTER CAMP AND LANE COMPANY, OF AKRON, OHIO.

TROLLEY-WAGON.

SPECIFICATION forming part of Letters Patent N 0. 722,426, dated March 10, 1903.

Application filed July 11, 1902.

To all whom it may concern: I

Be it known that I, GEORGE H. HULETT, a resident of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Trolley- Wagons; 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 appertains to make and use the same.

My invention relates to an improvement in trolley-wagons, the object of the invention being to provide an improved arrangement and mounting of hoisting, opening, and power drums in the trolley-wagon to permit the operator in a cage suspended from the trolley to have entire control of the operation thereof, and, further, to provide improved mechanism whereby motion given the power-wheel by the hoisting-cable is transmitted to the openingrope drum, taking up the slack that would otherwise accumulate in the opening-rope as the bucket is hoisted.

With these objects in view the invention consists in certain novel features of construction and combinations and arrangements of parts, as will be more fully hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure l is a side view illustrating my improvements. Figs. 2 and 3 are enlarged detail views of the trolley-wagon. Fig. 4. is an end view on a small scale, showing the application of my invention, the relation of the various features to each other being shown diagrammatically.

1 represents a bridge or frame provided with tracks 2, on which run wheels or rollers 3, carried by my improved trolley-wagon 4. The wagon at comprises a metal frame, a portion of which is made in the form of a cage or cab 5 for the operator, and the operatingdrums are all mounted upon a single shaft 6, On this shaft 6 is provided a power wheel or drum 7, keyed thereto, and on this same shaft are keyed one or more spools or small drums 8, to which the closing and hoisting cables 8 are attached. A cable 7 from the hoist-drum in the machinery-tower passes around and is secured to the power-wheel 7.

Loosely mounted on the shaft 6 is the open- Serial No. 115,226. (No model.)

ing-rope drum 9, and the lower end of opening-ropes 10 are fastened to the frame of an ordinary clam-shell bucket 11. The bucket illustrated is what is known as the Hulett bucket, and the endof the opening-rope is attached to chains or cables passing around the opening quadrants of the bucket; but it is not essential to employ this particular construction of bucket, as others may be used in which the weight of the bucket in opening is thrown upon the opening-rope to open the same.

A brake-disk 12 is secured to the openingdrum 9 and frictionally engaged by a brakeband 12 through the medium of a hand or foot lever 13 to hold the disk 12 against move ment, thus holding the bucket suspended in any position desired, as will hereinafter appear. A friction-clutch 14 also engages this disk 12 to lock the same to the shaft 6, and any approved mechanism may be provided for operating this friction-clutch.

To move the trolley along the tracks, the motor could be located in the trolleywagon, but preferably in a machinery-house. If located in the machinery-house, a drum. would be provided with one cable 15 wound around this drum and attached to the same, the opposite end being carried over suitable sheaves and attached to the trolley-frame. Another cable 16 is wound around the same drum, but in the opposite direction, is passed over suitable sheaves, and attached to the opposite end of the trolley-frame.

The operation of my improvements is as follows: To operate the excavating-bucket, the trolley, with the bucket suspended, is run over the material to be hoisted. By applying the hand or foot lever 13 to the disk 12 and releasing friction-clutch 14 the openingdrum 9 will be securely held and the Weight of the bucket in lowering revolves powerwheel 7 backward, unwinding the ropes from the hoisting spools or drums 8 and winding the rope 7 on thepower-wheel. In turn the winding of the rope 7 on the power-wheel 7 draws the hoist-drum in the machinery-tower backward, the bucket being opened and the hand or foot lever 13 released, the bucket descending open into the material to be hoisted. To close and hoist the bucket, the motor in the machinery-house is started, winding up the power-cable 7 a to turn the power-wheel 7, hoisting-drum 8, and draw up hoisting-cables 8 to close the bucketand inclose the material. As soon as the bucket is closed the frictionolutch 14 is thrown into engagement by the operator in the cab or cage, and hence looking the opening-drum 9 to shaft 6 and compelling it to turn to wind the opening-rope 1O thereon as the power-wheel 7 and hoistingdrums 8 are turned. Continuing the motion in the same direction, the bucket is raised to the height desired, when lever 13 is operated to hold the bucket in such position. The motor-drum in the machinery-house is now operated, and through the medium of cables 15 and 16 moves the trolley anywhere on the tracks 2, the power-cable 7 a being wound upon or unwound from power-wheel 7, according to the direction of movement of the trolley.

A great many changes might be made in the general form and arrangement of the parts described without departing from my invention, and hence I would have it understood that I no not limit myself to the precise construction set forth, but consider myself at liberty to make such. slight changes and alterations as fairly fall within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination with a trolley-wagon and a shaft thereon, of a power-wheel keyed to the shaft, a hoisting-drum keyed to the shaft, an opening-drum loose on the shaft, means for locking the opening-drum to the shaft, a brake to hold the opening-drum and shaft against turning and an operating-cable wound on the power-wheel and extending beyond the trolley to be operated by distant mechanism.

2. The combination with a trolley-wagon,

of a shaft mounted to revolve in said frame, a power-wheel keyed to said shaft, a hoistingdrum keyed to the shaft, an opening-drum loose on the shaft, a friction-disk secured to the opening-drum, abrake to engage the disk, a friction-clutch to lock the disk and shaft together, means in the trolley-wagon for operating said brake and clutch, and a cable for rotating the power-wheel.

3. The combination with an elevated track and a trolley-frame thereon, of hoisting and opening drums in said frame, hauling-cables connected to opposite sides of the trolleyframe, a cab or cage on the frame and means controlled by the operator in the cab or cage for controlling the entire operation of the opening-drum.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

GEORGE H. HULETT. Witnesses:

W. G. STEPHAN, JOHN MACGREGOR, Jr.

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