US395041A - Lifting-cage for mines - Google Patents

Description

(No Model.) v

D. T. DENTON.

LIFTING GAGE FOR MINES.

No. 395,041.- Pate'nted Dec. 25, 1888.

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' NiTED STATES PATENT EEicE.

DANIEL T. DENTON, OF TOVER MINES, MINNESOTA.

LIFTING-CAGE FOR MINES.

SPECIFICATION forming part of Letters Patent No. 395,041, dated December. 25, 1888.

Application filed May 26, 1888.

"o all 'whom 'if may concern:

Be it known that I, DANIEL T. DENToN, of Tower Mines, in the county of St. Louis and State of Minnesota, have invented a new and Improved LiftingCage for Mines, .of which the followingis a full, clear, and exact description.

The object of the invention is to provide a new and improved lifting-cage specially adapted for mines, on which the cars are firmly held in position when raised or lowered in the mineshaft, and which also permits of ruiming the cars on or off the cage easily.

The invention consists of a cage provided with rails having depressions'in which the car-wheels rest and of arms for raising the wheels out of the depressions.

The invention also consists of parts and details and combinations of the same, as' will be fully described hereinafter, and then pointed out in the claims.

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

Figure l is a plan view, partly in section, of the improvement. Fig. 2 is a sectional side elevation of the same on the line a1 .fr of Fig. l. 3 is a vertical. cross-section of the same ou the line 1/ y of Fig. 2, and Fig. Je is a detail sectional view of the rock-shaft.

The improved .lifting-cage A is provided with the usual platform, 13,011 which are held the rails C and. C, each provided near one end with a segmental depression, (l2, into which depressions fit one pair of the wheels of the car to be carried by the lifting-cage A. At the sides of the rails C and C are held the arms D and D', respectively pivoted at D2 to the rails C and C', and preferably connected with each other at their outer ends by a transversely-extending bar, D3, passing under the rails C and C', which are provided for this purpose with notches C3, as shown in Fig. 2.

lVhen the car vis moved onto the cage, the wheels of the car travel on the rails C and C', and one set of wheels passes into the depressions C2 of the said rails, whereby the car is rmly held in position on the cage. The latter is now moved up or down in the shaft of the mine, and when it reaches either the surface or the bottom of the shaft the arms D serial No. 275,195. No man.)

and D are raised by suitable means, so that the said arms engage the projecting parts of the treads of the wheels, thereby lifting said wheels out of the depressions C*2 until the lower parts of the respective car-wheels are in line with the topsof the rails C and C. The car is then run otf of the cage in the usual manner.

lThe means of raising the arms D and D may be of any desirable construction, preferably, however, the one shown in Figs. 2 and 3, in which the platform B of the cage A is engaged by the arms E, secured to a shaft, F, mounted in suitable bearings at the bottom of the shaft of the mine or at the top of the same. The shaft F is provided with an additional set of arms or prongs, G, somewhat longer than the arms E and adapted to engage the transverse bar D3, connecting the arms D and D with each other. Thus, when the car descends and the shaft F stands in the position shown in Figs. 9 and 25, the platform B of the lifting-cage rests on top of the arms E, and the longer arms, G, having previously engaged the cross-bar D3, move the arms D and D up ward, so that the car-'wheels are lifted out of the depressions C2, as before described. A lever, weight, or other device may be eniployed for operating the shaft F, so as to assume the position necessary for raising the arms D and D automatically whenever necessary.

Then the car is run otf of the cage, the shaft F is turned so that the arms E and G swing outward and the arms I) and D assume their former position-that is, the tops of the said arms D and D are somewhat below the bottoms of the depressions C2.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent--` l. In a lifting-cage for mines, the combination, with rails having depressions in which the car-wheels are adapted to rest, of arms held at the sides of the said rails for raising the wheels out ot' the said depressions, substantially as shown and described.

2. In a lifting-cage, the combination, with the cage-platform, of rails held on the said platform and having depressions in which are adapted to rest the car-wheels, and arms pivotally connected with the said rails for raising IOO the wheels ont 0i' the Said depressions, suhstantialiy as Shown and described.

3. In :i lifting-Cage, the eomhilmtion, with the caig'e-plnt'i'oiin, of rails heid on the said platform and having depressions in which the ear-wheels :we m'mpied to rest, mms pivotally connected with 'the said mils for 'raising `the wheels oui'o'li' the said (lepre, 101155, and a transi verse bal' connecting the outer ends of l@he said arms with each other, substantially as 1 shown and described.

A. S. SHEPHARD, T. MATTHEWS.

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