US1734686A

US1734686A - Bin gate

Info

Publication number: US1734686A
Application number: US79464A
Authority: US
Inventors: Mccollum Florence Woods; Mcintosh James
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-01-05
Filing date: 1926-01-05
Publication date: 1929-11-05
Anticipated expiration: 1946-11-05

Description

Nev. 5, 1929. c. A. MCCQSLLQ En 1,734,686

' BIN GATE FiledvJan. 5.. 1926 4 Sheets-Sheet 3 Ndv. 5, 1929. v c. A. MccoLLUM r-:T As. 1,734,686 l 'Patented Nov. 5, 1929 UNITED intesa' CALEB ADDISON MCCOLLUM, DECEASED, LATE OF CLAIRTON, PENNSYLVANIA, BY FLORENCE WOODS MCCOLLUM, EXECUTRIX, 0F PITTSBURGH, PENNSYLVANIA, AND JAMES MCINTOSH, 0F PITTSBURGH,'PENNSYLVANIA BIN GATE i Application led January 5, 1926. Serial No. 79,464.

This invention relates to mechanically operated gates for storage bin hoppers and the like, which deliver material into other receivers such as larry cars, trucks andthe like, and'while not limited thereto, relates more particularly to mechanically operated gates for the hoppers of coal storage bins used in connection with by-product cokeovens.

By-product coke ovens are charged with coal by a larry car carrying four or more measuring hoppers, which car travels along the top of a battery of ovens from the coal bin, where the coal drops into the oven through suitable charging holes which are closed by lids during the coking period. The coal bin, which holds the charging stock of coal, is so arranged that when the larry car carrying the measuring hoppers is inv position for loading with coal, each hopper is under a coal bin discharge gate. f 1

Heretofore, the coal bin 'discharge gates have been separately and manually operated. Owing to the very frequent opening and closing of the discharge gates .which are quite large and heavy, and the heavyweight of the coal against which they must be operated, the operators are frequently injured due to the jerking and strain necessary to move the gates.- f

The present invention provides mechanical means for operating all of the gates of the coal bin simultaneously, thereby speeding up the filling of the larry car and eliminating the manual operation with its resultant injuries. i

Inthe drawings:

Figure 1 is an end elevation showing the lower end of a coal storage bin, the larry car and the upper portion of a battery of coke ovens. y

Figure 2 is an enlarged detail elevation showing the bin hopper gates and the gate operating mechanism carried on the larry car.

Figure 3 is a sectional elevation on the line III-III of Figure 2.

Figure 4 is a sectional elevation on the line IV--IV vof Figure 2.

Fi ure 5 is a sectional elevation on the line V-. of Figure2. f

,Referring more particularly to the draw.

ings, the letter A designates the battery of coke ovens, the letter B designatesthe coal storage bin as a whole, and the letter C designates the coal charging or larry car as. a whole.

`The bin B has its bottom lconstructed-to form four.

hoppers

3, 4, 5 and 6 which are closed by discharge gates D. Y

The larry'carC is adapted to travel along the top of the battery of ovens A on tracks 2 and has its body formed as vfour measuring hoppers 7 8, 9.and 10. The car C is adapted tobe positioned under the storage bin B vso that the hoppers 7 8, 9 and 10 of the carY are alined with the lower ends of the

hoppers

3, 4, 5 and 6, respectively, of the pin B to receive coal from the bin hoppers when `the gates D are opened.

The hoppers 7, 8, 9 and 10 of the larry car C are provided with extension tubes or chutes ed .to travel ontrack members 14 secured to the 4gate'body 11. The rollers 13 are restrained from vertical movement by guide angles 16 secured to the gate body 11 by belts 17. The tracks 14 and guide angles 16 are strengthened by being connected at their overhanging ends by a web plate 18. It will thus be understood that the cut-oli plates or closuresV of the gates are 'supported in a fixed horizontal'plane by the rollers 13 and are free to move backwardand forward in this plane to open or closed position.

To simplify the operating mechanism and save time, it is desirable to simultaneously lill thel four measuring hoppers 7, 8, 9 and 10 of. the larry car C. Therefore, the cutoff plates or closures 12 are rigidly connected together by angles 19 which extend between the several cut-oit plates and are secured thereto by bolts 19a, forming a rigid unit of all the four plates or closures.

A triggerplate 2O is freely suspended between two

transverse angle members

21 and 22 which are secured between the angle members 19 extending between the plates on the hoppers 4 and 5 of the bin B. The

angle members

21 and 22 are spaced to form a slot in which the trigger plate is free to move in a vertical direction and said trigger is prevented from falling through the slot due to its upper end being bent at right angles to the main portion. as at 20a. The function of the trigger 20 will be clearly set forth below.

The coal bin discharge gate bodies 11 are provided with a movable section 26 hinged to lugs 27 on the body and normally held in closed or vertical position by the tension of spring 23 on rods 29. rllhe movable sec- Y tion 26 and springs 28 are oi sutlicient size and strength to relieve any pressure that would prevent the total closing of the cutofi1 plate or closure 12 due to a lump of coal being caught between the edge of the advancing cut-oli plate 12 and the movable section 26; but under normal conditions the springs 28 are sufficiently strong to hold the section y26 in closed or vertical position against the coal pressure in the bin when the closure 12 is advancing to closed position.

The larry car C is provided with an ele-V vated frame work 38 adapted to support the novel power operated gate operating unit designated as a whole by the letter E,

The unit E comprises a suitable reversing motor 31 which transmits power through a couplingv 32 to speed'reducing worm gear 33 thence through a coupling 34 and shait 35 to a pinion 36. The pinion 36 is in mesh with a rack 44 ona. ram 44'nl which carries two lugs 23 and 24 which are adapted to engage 'the trigger plate 20 when the larry car C is positioned for loading and the unit E is operated to open or close the cut-off or closure plates 12. Y

` Pinion 36'revolves with the shaft 35 which shaft is journaled in bearings 40 kin a housing 41 and moves the ram 44a which is slidably mounted in guides 42 formed in the top of the housing 41. Ram 442L is held in the guides `42 on the housing 41 by plates 43 bolted to the housing 41.

The lugs 23 and 24 are -pivoted on pins 37 Vmounted at 37 onthe rack 44a and are adapted to move through a 90 degree angle in such a manner that in case the ram 44Y is not in position with the trigger plate 20 between the lugs 23 and 24, ram 44 may be moved and the lug 23 or 24 as the case may be, will revolve about the pin 37 for permitting the lug to pass under the trigger plate 2O and 'the lug will then return by gravity to normal position. The outer faces or backs of the lugs 23 and 24 are beveled so that in case the'lug 23 or 24 as the case may be, did not revolve freely about the pin 37 the trigger plate 20, due to it being free to move vertically, will travel upward ly along the beveled face of the lug and over the top thereof and then drop between the lugs.

In order to prevent the overtravel of ram 44a, a limit switch of any standard design, indicated at 45, is provided at each ond ot the unit E. The switches 45- are connected in the motor circuit and are adapted to break the motor circuit when the ram i442VL has reached the limit of its travel in the direction in which it islbeing moved, but not interfering with the reverse motor circuit, so that the motor may be operated to reverse the travel ot ythe ram.

As a safety ifeature,a limit switch 39, of standard design, is provided, and islconnected in the circuit to the traction motor (not shown) of the larry car C and is adapt` ed to open this circuit when theram`44a is moved to open the closure plates 12 and to remain openv until the ram returns'to the position to close the plates 12,' thus prevent,"

ing moving the larry car except when the closure plates 12 are closed.`

ln operationthe larry car C is positioned under the coal bin so thatv the chutes 7a, 8a, 92L and 10n ot the hoppers 7,3, 9 and 10, respectively, of the larry car, are in alinement with the discharge gates D of the bin hoppers 3, 4, 5 and 6.v The operator of the larry car C will then ymake the circuit to the motor 31 through the means of a suitable controller or the like (not shown)` and the pinion 36 will be operated to move the ram 44a to tlierleft causing lug 24 to engage the trigger plate 20 and move the closure plates12 into open position. y lVhen the ram 44"* reaches its limit of travel the switch 45 will automatically break the motor circuit to stop' the motor 31 Hit the operator" .will automatically break the motor circuit to the motor 31 if the operator does not break the circuit by his controller.

As soon as the ram 442L starts to move to the left to open the closure plates 12A the automatic switch 39 will break thevcircuit to the larry car traction motor (not'shown) and said circuit will remain broken until the ram 44a has returned to the yright-hand position to close the closure plates 12'.

While we have shown and described one specilic embodimentof our invention, it willV be understood that Vwe dov not wish to be limitedv thereto t since various modifications When thev ram may be made without departing from the scope of our invention as defined in the appended claims.

We claim:

l. The combination with a material delivering hopper, of a gate for closing the lower delivery end of Said hopper, anda vehicle for receiving the material delivered from said hopper, said gate comprising a body portion, a horizontally reciprocating gate member, a movable side member on said body adapted to move outwardly if rany material is caught between the end of said reciprocating gate member and gate body when said gate member is being closed, and a power operated unit' carried by said vehicle for opening and closing said gate member.

2. The combination with a plurality of material delivering hoppers having movable gates for closing their delivery ends, of means for connecting all of said gates together, a power operated vehicle for receiving material from said hoppers, a power opera-ted unit carried by said vehicle for opening and closing said gates, and means for rendering said power operated vehicle inoperative when said power operated unit is in operation.

8. The combination with a plurality of material delivering hoppers having movable gates for closing their delivery ends, of means for connecting all of said gates together, a

power operated vehicle for receiving ma' terial fromsaid hoppers, a power operated unit carried by said vehicle for opening and closing said gates, means forming an operative connection between said power oper-V ated unit and said gates, said means being inoperative until said vehicle is'positioned to receive the material delivered from said hoppers, and other means for rendering said power operated vehicle Vinoperative while said power operated unit is in operation.

4. The combination with a plurality of material delivering hoppers, of gates for closing the delivery ends of said hoppers, and an electrically propelled vehicle for receiving the material delivered from said hoppers, said gates each comprising a body portion,

track members on said body portion, a

wheeled horizontally reciprocable closure member for closing the lower end of said body portion mounted on said track members, means for rigidly connecting all of said closure members together, an electrically operated unit carried by said vehicle for opening and closing said gates, and mechanical means carried by said gates forming an -operative connection between said electrically operated unit and said gates, said means being inoperative until said vehicle is positioned to receive the material delivered from said hoppers.

5. The combination with a plurality of material delivering hoppers, of gates for closing the delivery ends of said hoppers, and an electrically propelled vehicle for receiving the material from said hoppers, said gates each comprising a body portion, trackmembers on said body portion, a wheeled horizontally reciprocable closure member for closing the lower end of said body portion mounted on said track members, means for rigidly connecting all of said closure members together, an electrically operated unit carried by said vehicle for opening and closing said gates, and means for breaking the electric circuit to said electrically operated vehicle to render said vehicle inoperative ,when said electrically operated unit is being operated.

6. The combination with a plurality of material delivering hoppers, of gates for closing the delivery ends of said hoppers, and an electrically propelled vehicle for receiving the material delivered'from said hoppers, said gates each comprising a body portion, track ymembers on said body portion, a wheeled horizontally reciprocable closure member for closing the lower end of said body portion mounted on said track members, means for rigidly connecting all of said closure members together, an electrically operated unit carried by said vehicle for opening and closing said gates, means for limiting the opening and closing movement of said unit, and means for automatically rendering saidl vehicle inoperative when said unit is' being operated.

In testimony whereof I have hereunto set my hand.

FLORENCE WOODS MCOOLLUM, Eaecutrz'm of the Estate of Galeb A. McGol- In testimony whereof I have my hand.

hereunto set JAMES McINTOSI-I.