US1118510A - Means for holding cars on mine-cages. - Google Patents

Description

C. W. PARSONS.

MEANS POR HOLDING CARS 0N MINE UAGRS.

APPLICATION FILED OCT. 6, 1913V Patnted Nov. 24, 1914.

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MEANS POR HOLDING CARS 0N MINE GASES,

APPLIOATION FILED OCT. 6, 1913.

1,1 18,510, Patented Nov. 24, 1914.

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PARSONS, F ST. LOUIS,` MISSOURI.

MEANS FOR HOLDING CARS 0N IVIINELCAGES.`

Specification of Letters Patent.

. ratented Nov. 24, 1914.

`Application filed October 6, 1913. Serial No. 793,679.

ToaZZ 'whom it may concern: y

Be it known that l, @Lain/moi; lV. ,Pan-

" sons, a citizen of the United States of America, and a resident of the city of St. Louis and State of Missouri, have invented certain new and useful Improvements `in Means for Holding Cars on Mine-Cages, of which the following is a full, clear, and exact description, reference being had tothe accompanying drawings, forming a part `of this specification.

My inventionrelates to car holding means of the kind commonly knowiras car keepers, through the medium of which iniiie cars are held from dis :ilacement ii ion dui'n cages when the cages are dumped.`

rl`his invention has for its object the production of a simple and highly ellicient cai'I holding means which is not liable to impairment in service, is positive in its action, and operates automatically intocar holding position, and into car releasingposition.

Figure I is a top or plan view of amine cage equipped with. my car holding means, the cage and the car holding means being shoivn as they appear when the cage is iinmediately above the level of the tunnel in a mine. Fig. Il is an elevation of the mine cage and car, and my car holding means, the parts being shown in full lines, as they appear when the car holdingmeans is in service during the ascent or descent of the cage, and indotted lines as they appear when the car holding means is in inoperative position to permit the transfer of the car to or from the mine cage. Fig. III is an end elevation of the mine cage, the car thereon and the car holding means, with the latter shown in service. Fig. IV is a side elevation illustrating a modification.

In the drawings: A designates the platform of a mine cage, provided, as usual, With rails B adapted to receive the wheels of an ordinary mine car C, which may be transferred to and from the track railsD in a mine tunneh The cage platform is pivotally supported, as is usual in dumping` cages, inorder that the contents of the car carried by the cage may be dumped at the top of the mine shaft. Inasmuch as the structure `of the cageconstitutes no part of my `present invention, further description thereofl is deemed unnecessary.

My car holding means is so constructed as to be operable automatically through the medium of a suitable abutment, Within the iiiine shaft, whereby the holding means is released from the car held thereby when the iiiiiie car is lowered to the mine. tunnel; and it is operable automatically to rengage the car when it is replaced on the cagenfter being filled in the occurring during the upward movement of the mine car. These operations will loe fully explained in the 'following description:

l designates posts arranged in pairs upon the cage platform A, the posts heilig so located loiigitudinally of the platform as to provide for positions `approximately beneath the axles of a mine ear when the car is in its normal iiositioiioii the cage platform.

.2 designates arms or keepers having their lower ends pivotally mounted in the posts .l at ll, these keepers beingadapted to occupy the channels in the posts, as seen in Figs. l and lll, and in full lines Fig. ll, when in p upright positions, and l'ieing adapted to he swung (.loiviiivardly, as seen in dotted lines .l `ig. ll. When upright, the keepers occupy positions adjacent to the inner facing sides of the car axle c toward which they are moved when elevated, and when held in such upright positions, h v in iaiis about to be described, one pair of thekeepers serves to hold the rection on the cage rails, and the other pair tunnel the reiigagement both pairs of posts occupying` lnine ear fioiii movement in one di?` of keepers serves to hold it from movement in the other direction on said rails. The keepers 2 are provided at their free ends with lateral arms 3, which are adapted to overhang the car axles, as seen most clearly 1n Fig. II. ,",lhese.lateral arms serve eli ciently to prevent the tilting of a mine car,

relative to the platform when the cage platform on which the car rests is dumped; and, by their use, I avoid the necessity of furnishing guards, suoli as ordinarily used, for pre venting tilting or tipping of mine cars on dumping cages. Each keeper 2 of the pairs of keepers `is connected to the opposite keeper of theother pair by toggles comprising toggle links pivoted at their outer ends and connected at their inner pins 6.

7 are toggle operating rods connected to the pivot` pins 6. These toggle operating rods serve to straighten the purpose of elevating the keepers 2 into their active positions, seenin Fig. II, the nievement of the toggles being preferably such as ends by pivot toggles, for the l to place the inner ends of their links above a dead center, in order that the toggles Will become self locked. To prevent undue upward movement of the toggles, one link of each pair is provided at its inner end with a bottom tongue 8, which engages the loiver face of the opposing link.

9 designates a rock shaft suitably supported by a tiltable element of the mine cage beneath the platform A. rlhis rock shaft has lined to it a pair of arms l0, pivoted to the lower ends of thetoggle operating rods 7, thereby providing for the operating of said toggle operating rods when the rock shaft is rotated in either direction.

ll designates a Weighted lever arm fixed to the rock sl aft 9. rl`his lever arm tends normally to hold the arms l0 elevated, whereby the toggles connected to the keepers 2 are maintained in spread condition between the keepers, and act to hold the latter in upright positions for the desired service of restraining the mine car from displacement on the mine cage platform. rlhe parts of the car holding means occupy the positions described ivhen the mine cage platforn'l is at the top ot the mine shaft and is being dumped, and also While the mine cage is in transit in the shaft. YW hen, however, the mine cagr` approaches the location of the tunnel in the mine into which the car on the cage platform is to be transferred, the Weighted lever il strikes a suitable abutment, such as that shown at l2, With the result of causing said lever to be lifted, the rock shaft 9 to be rotated, moving the arms l0 and the toggle operating rods 7 downwardly, whereby the keeper operating toggles are folded and the keepers are lowered, as indicated by dotted lines Fig. il, 'thereby freeing the mine car and permitting its removal from and replacement on the cage platform.

The construction in the modification illus- Copies of this patent may be obtained for so made are desirable lwhen the mine cars in use v-have their bodies so located above their axles as to prevent the use of the arms 3 on the keepers as in the first described construction. ln the use of the keepers 2, it is necessary to utilize independent means for preventing tilting of the mine oar, relative to the platform when the cage platform is tilted, and guards lil of a usual type may be Vused in such instance.

l claim rllhe combination with a tiltable mine cage platform, of posts snrinonnting said platform, keepers adapted to engage the axles of a mine car, said keepers being pivoted to the loiver portions of said posts and the latter being provided with channel shaped upper portions adapted to receive and hold the keepers, and automatic means for moving said keepers upwardly into the channel shaped portions of said posts and into engagement with the car axles, said means including a toggle, above said platform, connecting said keepers, a toggle operating rod extending through said platform, a Weighted lever tending to hold said keepers in the channel shaped upper portions of the said posts, said Weighted lever being connected to said toggle operating god, and an abutment adapted to be engaged by said Weighted lever ivhile the mine cage platform is in motion, so as to operate the toggle, thereby withdrawing the keepers from the channel shaped upper portions of said posts.

ernennen vv. Passons.

In the presence of- E. K. CLARK, E. B. LiNN.

five cents each, by addressing the Gommissoner of Patents,

Washington, ID. C.

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