US307980A - Freight-elevator - Google Patents

Description

(No Model.) S

0'. BLPAXTON.

FREIGHT ELEVATOR.

No. 307,980. Patented Nov.-

WITNESSES INVENTOR: 7 BY Jul/M 41,

ATTORNEYS.

F wmumo hu, wmin m o c NITED STATES CHARLES BUOKNER PAXTON,

PATENT OFFICE.

OF VIOKSBURG, MISSISSIPPI.

FREIGHT-ELEVATOR.

SPECIFICATION forming part of Letters Patent No. 307,980, dated November 11, 1884.

v 3 Application filed June 25, 1884. (No model.)

To all whom it may concern Be it known that I, CHARLES B. PAXTON,

of Vicksburg, in the county of WVarren and State of Mississippi, have invented certain new and useful Improvements in Freight-Elevators, of which the following is a full, clear, and exact description.

The object of my invention is to provide a freight-elevator for loading and unloading water-craft, especially at low stages of water; and it consists in an adjustable platform and endless elevator combined, as hereinafter described and claimed. I

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 is a vertical section and partial elevation of my improved elevator, 2 is a side elevation of the same.

A is a vertical shaft stepped in a box, a, under or upon the deck of the vessel or other support.

B is a double-cogged master-wheel loose on shaft a, and supported by its hub resting on the step.

0 is a frame carrying the stage and elevator, and supported on the upper end of the shaft A by boxes in cross-bars b, that are keyed to the shaft or rest on shoulders thereon.

d is a vertical shaft sustained in bearings on frame 0. This shaft carries at its lower end a pinion, e, engaging the internal cogs of wheel B, and on its upper end is a bevel-pinion, f. I

g is a horizontal shaft on frame 0, carrying a bevel-pinion, h, meshing with pinion f, and also carrying chain-wheels it for endless chains k is, that pass over similar chain-wheels, 'Z, on a shaft, Z, at the upper end of the stage D. The side bars of the stage D are hung on the shaft 9, so that the outer end can be raised and inions n n that en a e inions o 7 b and Fig.

lowered. There is also a shaft, m, extending lengthwise of the stage and carrying bevel- 0 on shafts 9 Z for the purpose of transferring the power to the upper shaft, Z, and keeping the chains taut. The two chains are connected by crossbars 10 at suitable intervals. This construction allows the stage, with the elevating-chains,

to be raised and swung to the required height and position for the upper end to rest upon a dock or shore.

The elevator may be operated by stearnor other power, as most convenient; but usually the steam-capstan on the vessel will be geared to wheel B, so that when set in motion the chains, with bars 0, will be caused to travel in either direction and carry up or down any freight placed on them.

The wheel B may be keyed to the shaft A and the shaft fitted to revolve. I do not limit myself in that respect, nor in other details of construction.

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

1. In a freight-elevator, the combination of the stage D, carrying endless chains, the shaft 9, frame 0, and gearing, substantially as described, for operating the chains.v

2. In a freight-elevator, the combination of the frame 0, carrying an endless-chain elevator, the shaft A, master-wheel B, and connections, substantially as described, for operating the elevator.

3. The shaft m and pinions n n o 0, combined with the chain-wheel shafts 9 Z, chains k, chainwheels Z 'Z, and stage D, as and for the purposes specified.

OHARLES BUOKNER PAXTON. Witnesses:

LOUIS B. SMYsER, J AMES J. DOYLE.

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