US1408088A - Feeding mechanism for mine cars - Google Patents

Description

G. IVI. JOHNSON.

FEEDING MECHANISM FOR MINE CARS.

APPLICATION FILED .IAN-28,192I- Patented Feb. 28, 1922.'

3 SHEETS-SHEET l.

G. M. JOHNSON. FEEDING MECHANISM FOR MINE CARS.

Illlllll) INVENTOFl L w//Qfwwn/ Q7/ww WITNESS G. M.. JOHNSON.

I FEEDING MECHANISM FOR MINE CARS.-

APPLlcATloN FILED mma. 1921.-

1,408,088. Patented Feb. 28, 1922.

3 SHEETS-SHEET 3.

/ Mulan-vor;d

UNITED STATES GEORGE M. JOHNSON, 0F JEANNETTE, VPENNSYLVANL.

FEEDING MECHANSM FOR :MINE CARS.

Application filed January 28, 1921.

To all Iwhom 'it may concern.'

Be it known that I, GEORGE M. JOHNSON, a citizen of they United States, residing at Jeannette, in the county of TWestmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Feeding Mechanism for Mine Cars, of which the following is a specification.

This invention relates to a feeding-mechanism designed primarily for the feeding of cars to mine-shaft cages, although it is to be understood that the invention Ycan be employed for-any purposes wherein it is found applicable, and has for its object to provide a feeding-mechanism adapted to be arranged at a landing of a mine-shaft, and provided with car stop arresting elements to stop the travel of a cai` towards the shaft, until the car is released by the actuation of the mechanism by the cage, when the latter reaches the landing, under such conditions the peru mitting of the car to be automatically fed upon the cage.

A further object of the invention is to provide a feeding mechanism for the purpose set forth having means (as more specifically described and shown in my Co-pending application Serial Number 440,687 i'iled Jan. 28, 1921,) actuated on the travel of the cai' towards the cage', when the car is released, to cause the restoring of the car stop elements to normal position to arrest movement of an oncoming car.

A further object of the invention is to provide a feeding-mechanism for the purpose set forth, having means for holding the car stop elements clear `o-f the car when the mechanism is actuated to release the car for travel towards the cage when the latterV is at the landing, and further with means actuated by the car, when the latter is released, to operate said holding` means whereby the car stop elements are restoredto normal position for car arresting purposes.

A further object of the inventionV is to provide a feeding-mechanism for Athe purpose set forth adapted to be arranged at a landing, and which is automatically .operated to released position by a cage when it reaches the landing whereby a car arrested by the mechanism will be permitted to run onto the cage.

Further objects of the invention are to provide a feeding mechanism for the purpose set forth which is simple in its con- Specication of Letters Patent.

Patented Feb. 28, 1922.

Serial No. 440,686.

can be resorted to which come within the l scope of the claims hereunto appended.

In the drawings wherein like` reference characters denotek corresponding parts throughout the several views Figure l, is a top plan view of a mine car feeding` mechanism in accordance 'with this invention, showing the adaptation thereofin connection with a mine-cage, the latter being provided with a car stop mechanism.

Figure 2, is a like view, upon an enlarged f:

scale, Of the mine car feeding mechanism, broken away. y

Figure 3, is an elevation partly in section showing the releasing device, forming one,

of the elements of the feeding mechanism.

Figure l, is a section on line IV-IV Figure 2. i

Figure 5, is a side elevation of the mechanism and further showing the wheel of the car about to actuate the releasing device.

Referring to the drawings in detail 6 denotes a mine-cage provided with acar stop or holding mechanism 7, of any suitable construction, 8 an. actuating member for the mechanism 7,. and 9 a releasing element or` rather operating element for the member S. The mechanism 7, member 8 and element 9r` may be of any suitable construction .and forms no part of this invention as they r aie illustrated merely by way of example. The i operating element 8 is arranged upon a landing of the mine shaft. The mine cage 6 is` provided with a pair of track rails 10, which'. aline with the track rails 11, 12, mounted onfy the ties 13 and support la. The ties 13 and support 1+iv are arraiigedupon the landing which supports the element S. Mounted on the ties 13 and support 14, is an elongated supporting member 15, provided with bear@ ings 16 for a rock shaft 16, the latter having projecting from one end a crank 17, which lies in the path of the cage 6, so that the latter as it reaches the landing will engage the crank 17 and rock the shaft 16 or in other words swing the shaft 16, within its bearings 16. The supporting member 15 is positioned parallel to and between the track rails 11, 12.

The shaft 16 has each end project beyond the bearings 16, and on its inner end is provided with a toothed quadrant 18, which engages with the studs 19, carried by the inner portion of a spring controlled shifting bar 20, which is formed of an outer and an inner section adjustably connected together. The studs 19, are carried by the inner section of the bar. rlhe outer section of the bar 2O is bifurcated, as at 21 and is supn ported by a roller 22. The inner section of the bar y2O is supported by a roller 23. The bar 2O is adapted to be shifted transversely with respect to the track formed by the track rails 11, 12, and during the shifting movement thereof the section of the bar 20 which is bifurcated slides under the track rail 11. The inner section of the bar 2O has a depending arm 24, to which is attached one end yof a `coiled spring 25, the other end of the spring 25, is connected to an arm 26, depending from the support 14, and the shifting of the bar 20, bythe quadrant 18, is had against the action of the spring 25, so that when the crank 17 is released by the cage 6, the spring 25 will restore the bar 2O to normal position.

.Pivotally mounted in the fui-cation 21, of the Outer section of the bar 20, is a 'flat retaining member 27, provided with a nose 28, and an elongated slot 29. The member 27 is pivoted at one end and the pivot therefor is indicated at 30. The retaining member 27 projects from the bar 20 and in a `direction from the cage 6. The slot 29 extends in a direction lengthwise of the member 27. A guide roller 21 is arranged at the outer end of the bar 20.

Arranged to the outer side of each of the track rails 11, 12, vis a supporting element 31, for a spring controlled and cushioned stop block. The blocks are indicated at 32,

33, and are normally arranged to extend over the `track rails and in the path of the wheels 34, of .the car, so that the blocks will be in position to arrest movement of the car, or in other words stop the travel of the car towards the mine cage 6. The support 14 for the track rails is disposed at a slight grade, so that when the blocks are moved clear of the wheels of the car, the latter will move by gravity towards and upon the cage 6. Each ofthe stop .blocks is pivoted at 35, on a shaft or rod 36, and the arrangement is such that `the blocks can shift on the rods when desired. Each ot the blocks has a depending arm, and the arm for the block 32, is indicated at 37 and the arm for the other block at 38.

Pivotally mounted on the support 14, is a to be engaged by the nose 28, ot the retaining member 27, to prevent shifting of the lever arm 39, to maintain the blocks 32, 33, clear of thetrackrails 11, 12, to allow travel of a car towards the cage. The shifting of the lever arm 39, rods 41, 44, by the shifting bar 20, is had against the action of the spring 46, the latter being attached at one end with the lever arm39, by a. link 47 and having its other end connected toan arm.48, which projectsfrom the support 14. The blocks 32, 33, are maintained in inoperative position by the engagement of the nose 28, with the shoulder 45, until the retaining member 27 is moved clear of the bar 44, by a `releasing device to be presently referred to. The

nose 28, in connection with the shoulder 45,

provides means for causing the operation of the actuating rods 41, 44, when the bar' 20 is shifted, and in this connection it will be stated that when the bar 20, is shifted by the quadrant 18, the nose 28 is brought into engagement with the shoulder 45, causing thereby the shifting ofV the rod 44, and the latter rocking orvswinging the lever arm 39, will actuate the bar 41. When the bars 41, 44 are actuated` through the medium of the bar 20, the blocks 32, 33 will be swung clear of the track rails to allow passage of the car towards the cage.V

The releasing mechanism for the retaining member 27, comprises a `spring controlled rod 46, which has'one end connected by a pin 47, to the member 2 7. The pin 47 eX- tends through the slot 29. The controlling spring for the rod 46, is indicated by the reference character 48, and is coiled around the rod. The end of the rod 46 which is attached to the member 27 is enlarged as at 49, and theA spring 48 is interposed `between the enlarged end 49 and an abutment 50, the latter constitutes a guideand support for the rod 46. f

The releasing device or mechanism further.v includesy a trip l lever 5l, which has a `lateral projection 51 positioned inthe path otonor of the wheels 34, of thee-ar, sothatas the latter travels' towards the cage 6, 4the projection 51 will be engaged and the lever 5l shifted, the latter actuating the releasing device causing thereby the shifting of the member 27 on its pivot, in `a `direction whereby the nose 28 will be moved clear of the shoulder 45, so that the action of the spring 46. will more the rods 41, 44, in a direction opposite to that when shifted by the bar 20, under such conditions the blocks 32,33 willbe positioned over the track rails 11, 12 and in the path ofthe wheels of an oncoming car to arrest movement of the latter, or in other words stop the travel of the cartowards the shaft and cage.

The track rail 11 is formed of two sections or has a portion thereof cutaway, and arranged in said cutawayportion is a tread member 52 having a depression 52 at one end. The lever 51 depends below the member 52 and is pivotally mounted at its lower end, as at 53, to a pair of hanger arms 54, 54', the former depending from a fish plate 55. The latter has a vertical flange 56,

`formed with an offset portion 57, and that portion of the plate 55 bounded by the offset portion 57 is 'cutaway to provide an opening 57 for the operation of the lever 51.-

The fish plate 55 is arranged on the outer side of the sections of the track rail 11v and is secured to said sections of the track rail .On the inner side of the member 52 is arranged a fish plate 58 which abuts against the heads of the sections of the track rail 11, and is secured thereto. vThe hanger arms54 is ,carried by the fish plate 58.

The lateral projection 51 on the upper end ofthe trip lever 51 is so shaped that when the lever 51 yis shifted by the wheel 34 of the car to the forward end of the member 52, it .will snugly fit the depression 52 and form a continuation of the rail tread. lVhen the lever 51 is shifted it abuts against the forward section of the track rail 11, and the enlarged upper end of the lever is flush with the tread of said section, or in other words forms a continuation of the tread of the section. i The offset portion of the flange 56, provides a clearance for the movement of the enlarged upper end of the lever 51.

The spring controlled rod 46, is pivotally connected to the lever 51, so th-atwhen the lever 51, is shifted by the car wheel 34, the rod 46, will be carried with the lever 51, swinging the retaining member 2T on its pivot and in a direction to move the nose 28 kclear of the shoulder 45. After the ear wheel2 clears the upper end of the lever 51,

y the spring 48 will restore the lever 51 to Y normal position, which is in the path of the wheels' of the car.

Although the stop blocks are returned to extend into said cutawayportion and with the nose 28 against the shoulder 45. The

parts of the feeding mechanism will then be in position to release the blocks, whenvthe crank 17 is operated by the cage, so that passage of the car to the cage can be had.

lllhat l claim is 1. A feeding mechanism for mine cars comprising a pair of oar stop-blocks, means connected with said blocks for normally retaining` them in operative position to arrest movement of a mine car towards a cage, a shifting mechanism adapted to be operated by the cage as it approaches a shaft ,landing and detachably engaging with said means to shift it whereby the blocks are moved to and retained in inoperative position to permit of the travel of the car towardsy the cage, and a releasing device operated by the car as it travels towards the cage to release said means to permit the blocks being shifted to operative position.

2. A feeding mechanism for mine cars comprising a pair of car. stop-blocks, spring cont-rolled means connected with said blocks for normally retaining them in operative` blocks being shifted to operative position,

said releasing device being spring controlled.

A feeding mechanism for mine cars comprising a pair of car stop blocks, actuating rods thereof operatively connected together and Vto said blocks, a shifting mechanism Ydetachably engaging with one of said rods for shifting the rods to shift the blocks, and a releasing device for moving said shifting mechanism clear of therod.

4. A feeding' mechanism for lmine cars normally in the path ofa car to arrest move,-k

ment thereof, operating means for saidy bloclrs,lsaid means including a rod having. a shoulder, a shifting mechanism havinga yretaining member normally in engagement with said shoulder and adapted 'when operated to shift the rod to throw said operating means into operation to shift. the blocks to allow travel of the car, and a releasing device for said retaining member adapted when operated to shift said member clear of the shoulder whereby said blocks can be restored to normal position.

5, A feeding mechanism for mine cars comprising a pair of shiftable car stop blocks normally in the path of a car to arrest movement thereof, operating means for said blocks, a cage operated shifting mechanism having a retaining member detachably engaging with said operating means and adapted when operated to actuate the said means to shift the blocks from normal position to allow travel of the car, and a releasing device for said retaining member adapted toL ber detachably engaging with said means and adapted' when operated to actuate said means to shift the blocks from normal position to allow travel of the car, and a spring controlled releasing device for said-retaining member adapted to be operated bythe car during the travel thereof whereby the blocks will be automatically restored to normal position.

7. A feeding mechanism for mine cars comprising a spring controlled car' stopY block operating means for shifting car stopk blocks to and fromr normal position, a spring controlled-shifting bar detachably engaging with said means for actuating it to shift the blocks from normal when the bar is operated, said bar havinor studs or pins, a cage operated shaft having a quadrant engaging with said studs to operate the bar when thesh'aft is operated by the cage, and a releasing device for disconnecting the bar from said means whereby the blocks will be restored to normal position.

S. A feeding mechanism for mine cars comprising a pair of car stop blocks normally in the path of a car to arrest movement thereof, operating means for the blocks to shifting the blocks to and from normal position, a cage operated shifting mechanism having a latch member detachably engaging with said means for actuating it when the shifting mechanism is operated by the cage, and a releasing device connected with the latch member and adapted to be operated by a car during the travel thereof for shifting` the latch member clear of saidpmeans whereln testimony whereof l my si by the blocks can be restored sition by said means.

9. In a feeding mechanism for mine cars a car block 'shifting means, a cage operated shifting mechanism for said means and com prising a spring controlled bar having a pivoted latch member detachably engaging with said means to operate it in one direction, and means for moving the latch member clear of said car block shifting means.

10. In a feeding mechanism for mine cars operating meansV for a pair of car blocks provided with al shoulder, and` a cage'operated shifting mechanism having a nose de- Vto normal po-v tachably engaging with said shoulder and i adapted when operated to actuate said op-` erating means to operate the car blocks.

ll. A feeding mechanism for mme cars comprising a pair of car stopV blocks nor- Y mally in the path of a car to arrest travel thereof, operating means for shifting Said blocks to and from the path of travel of the car, a cage operated shifting mechanism de tachably engaging with said means and adapted when operated to actuate said-means i to shift the block from the path of travel of the car, and a-car operated releasing device connected to said shifting'mechanism andadapted when'operated by the car during the travel thereof to disconnect the shifting mechanism from said meanswhereby the blocks can be restored to a position in the path of travel of a car to arrest movement thereof.

12. A feeding mechanism for mine cars comprising a pair of car stop blocks adapted to be shifted into and out of the path of travel of a car, operating means for said blocks, said means including a pair of actuating rods, one of said rods having a shoulder, a cage operated shifting mechanism having a latch member detachably engaging` with said shoulder and adapted when to actnate said means to shift the blocks out of the path of travel of the car, and a car operated releasing device having a pin and slot connection with said member and adapted when operated to move the member clearv of the shoulder whereby said means can be actuated to shift the blocks intothe path of travel of the car.

ature.

GEORGE M. JOHNSON.

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