US825477A - Mine-hoist. - Google Patents

Description

PATENTED JULY 10, 1906.

A.'B. PAIGE. MINE HOIST.

APPLICATION FILED FEB-26. 1906.

' 2 SHEETS-SHEET 1.-

mmmum PATENTED JULY '10, .1906.

A, B.'PAIGE'. MINE HOIST. APPLICATION nun FEB. 26. 1906.

2 SHEETS-SHEET 2 AUSTIN B. PAIGE, OF IOWA FALLS, IOWA.

IVIINE-HOIST;

Specification of Letters Patent.

Patented July 10, 1906.

Application filed Fe ruary 906. Serial No. 303,066.

To all whom it may concern:

Be it known that I, AUSTIN B. PAIGE, a citizen of the United States of America, and a resident of Iowa Falls, in the county of Hardin, State of Iowa, have invented certain new and useful Improvements in Mine-Hoists, of which the following is a specification.

My object is to provide a mine-hoist of simple, strong, and inexpensive construction specially designed for manual operation.

A further object is to provide a mine-hoist in which a novel construction of drum is employed having two diameters as required to start a load slowly on the lesser diameter and lift the load at a higher speed on the greater diameter.

A further object is to provide a novel means for imparting motion to the windingdrum, as will hereinafter be more fully set forth, pointed out in my claims, and illustrated by the accompanying drawings, in which Figure 1 is a plan of the complete hoist. Fig. 2 is an elevation, partly in section; and Fig. 3 is a detail of the winding-drum.

Referring to the accompanying drawings, the numeral designates a shaft mounted in suitable bearings 11. A winding-drum having a portion 12, upon which the cordage or cable is wound, a reduced portion 13, a notched flange 14, and a portion 15, upon which surplus cordage or cable is held, is

mounted on the shaft and keyed or otherwise fixed thereon. Each end of the shaft 10 is provided with a member 16 of a friction clutch, which members are slidably yet nonrotatably secured to the shaft. Levers 17, fulcrumed to bearers 18, are arranged to engage annular grooves 19 in the hubs 20 of the clutch members 16.

Shafts 21 and 22, mounted in bearers 23 and 24, are each provided at their inner ends with a clutch member 25 and 26, and balance-wheels 27 and 28 are mounted on the shafts 21 and 22. To rotate the shafts 21 and 22, sheaves 29 and 30 are fixed on the shafts and embraced by ropes, belts, or cables 31 and 32, which also embrace the sheaves 33 and 34. The sheaves 33 and 34 are mounted on shafts 35 and 36 in the bearers 37 and 38 and arranged to be rotated by means of the cranks 39 and 40.

A reduced portion 41 of the winding-drum is embraced by a band 42, one end of which is immovably secured to the frame of one of the bearers 11 and its other end connected with a lever 43, pivotally mounted on a bearing 44 on the said frame of the bearer 11. In the further description these elements will be referred to as a band-brake.

A dog 45, arranged to engage a ratchet-v face on the flange of the drum adjacent the portion 15, provides a means to prevent a movement of the drum in one direction as re quired to prevent the load from dropping into the mine-shaft in case of accident and to provide a positive means to hold the load at any desired point in the mine-shaft.

In the operation of the hoist a rope or cable is wound first upon the portion 12 of the drum suflicient to reach to a point near the bottom of the mine-shaft, then about the reduced part 13, thence through one of the notches in the flange 14 to the part 15, which is for the surplus rope. Assuming the rope to be secured to a load to be lifted from a mine-shaft, the operator sets in motion the wheel 27 and shaft 21. When the momentum is great enough, the clutch member 16 is moved into engagement with the member 25 and the shaft and drum rotated, the rope starting to lift by being wound about the reduced part of the drum, which, it is obvious, will tend to decrease the initial erk in start ing. When the distance to lift a load is greater than can be accomplished by the op eration of one balance-wheel 27, the second wheel 28 may be set into motion and continue the lifting of the load by placing the clutch member 16 into engagement with the member 26 and releasing the opposite mem ber 16 from the member 25. By successive operations of the balance-wheels and clutch members a load may be lifted from mines of any depth.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters Patent of the United States therefor, is

1. A drum for cables, comprising a drum portion of relatively large diameter, a drum portion of relatively small diameter adjacent thereto, and a flange at the end of the smaller drum portion opposite from the larger drum portion, said flange formed with a cable-receiving notch.

2. A cable-drum, comprisin a large cylindrical drum portion, a small cydindrical drum portion adjacent thereto, a flange adjacent to the small cylindrical drum portion, and a drum portion on the other side of the flange, said flange formed with cable-notches.

3. In a mine-hoist, a drum having a notched annular flange, intermediate its ends, a reduced part adjacent the flange, a ratchetfaced flange, a dog to engage the ratchet-face, an integral annular extension, and abandbrake for engaging the annular extension.

4. In a mine-hoist, a shaft having a drum thereon, bearings for the said shaft, a clutch member on the end of said shaft, a second shaft having balance-Wheel thereon, bearings for said second shaft, a clutch member on said shaft, a sheave on the second shaft, a second sheave mounted on a shaft in suitable bearings, laterally removed from the first sheave, a rope for embracing the sheaves, means for rotating the said second sheave, means for moving the clutch members into and out of engagement, and a brake fqr,con= 2o his AUSTIN B. XEAIGE.

Witnesses: mm

W. B. MAoY, A. O. MACY.

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