US1413335A - Mine-door-operating mechanism - Google Patents

Description

W. KORTKAMP.

MINE DOOR OPERAHNG MECHANISM.

APPLlCATlQN FILED SEPT. 30, 1921.

Patented Apr-n18, 1922.

gwuentoz/ W. KORTKAMP.

MINE DOOR OPERATING MECHANISM.

APPLICATION FILED SEPT- 30,192!- Patented Apr. 18, 1922.

2 smears-sun 2.

close'the 'doo'r,.-"the said'invention having for v To all "whom. it may concern:

Be it known that I, WVILLIAM Kon'rim ur, a citizen of-the UnitedStates jot Amerlca, and resident of Hillsboro, in'the county of j Montgomeryand State of Illinois,jha've'invented certain "new ,and useful "Improve- "ments in Mine DoonOperating Mechanism, of whichjthefollowing-is a specification.

This invention relates to mine trapdoor operating mechanism efl'ective to open and an object the provision jfof novel imeans whereby the door may be operated 'froma distanc'e from the door aggregating from one hundred totwohundred'feet, according to "the requirements in practice. v

further object of'thisinventionis to produce a door operating mechanism which may bemaintained in positions clear. of obstructions that are very common 1n coal mines, andin which operating partsof the mechanism may be protected or 'house-d'to prevent their belng fouledb'y'the accumulation of foreign substances or rubbish.

A still further object of this invention is to lproduce'novelmine door operating mech- 'anism effectiveto open'either a single'or' double door, and in which provision may be madefor operating doors at curves, ELS WIIl presently appear. v r v A 'still'further object of this invention '18 'to' produce a mine door operating mechanism in which the weight of cars traveling on :rtrackmay be communicated evenly to the door operating links and levers to avoid v and vibration as the parts are undue shock actuated.

lVith the foregoing and other objects in) view,.the invention consists in the detailsot construction; and in the "arrangement and combiuation'ot partsto'b'e hereinafter inore fully set forth and claimed.

In describing the invention in detaiIQref-f erencerwill' be had to the "accompanying drawings forming part ofthis application wherein like characters denote correspond-- 'ing parts which V "Figure" 1 illustrates a view'in side elevation of a track with a, door operating mechin the several views, and "in anism" embodying the invention applied thereto, the door being shown insection;

Figii1e 2 illustrates a plan view of the "said mechanism withfthe do" r in horizontal section;

Figure-8 illustrates aperspective view'o'f fragments of the operating mechanism;

it M N -Doon-oPERArIn Ec innisiu.

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"WILLIAMIKORTKAMP, o 'HILI-ls on-o, :ILLINOiS.

p c o -et f B t-Q Q Patented Ap 18,1922. i Applicationfiledfiscptemb er 30, 19 21. seriarnb:504;352;

iti te illustrates an lenlarg'eddetailed Figure 16 illustrates a: view ingelevation showing how'themecha'nism can be housed "to obviate the accumulation of-foreign substances; and t e F gure *7 illustrates sectional viewthereof;

-In these drawings {10, 11 an'dj l 2' denotje traclc sections, the sections -10 and "12 being suchremoteness'with'respect to the'sec tion'll as to causethe operation of the door .when the 'car has reached a predetermined distance fromfithe door. The'railsandoperatingf mechanism are shown as broken away I -'so that the door operating mechanism or lthatjpart'thereotthat is actuated by the weight "of the car, -be stationed; at arbi trarydistances from the door. The main door operating-shaft 13, which is' 'actuated by the weight 1 Of'tllfi car, is 'vjournaled' in bearinglbrackets l-wh'ich may be-support-' ed on cross ties 15 or other appropriate foundations, and these bearing brackets maybe increased or. diminished in number, accordi "ing'to-thelength of 'theshaft employed.

Obviouslyythis shaft maybe supplied wvi th universal'joints suchas 15 it the shaft-is employed on curveseb ut this is anbbviousdetail of construction which one skilled in-the art may employ. I;

.i -The track, in the present embodiment of the invention,"is guarded by'a inine door 16 hinged to a postor' frame 17, asis ordinarily the case,-and the door hasa' link-IS con nected to it by the mountingsf l9q The; end

of the flink remote from tlie dooris" pivw otally connected to an'arm 20,- and the said arm" is pivotally connected to-or mounted on a piost or bracket 21, in order' that the 3 said swing horizontally" from" the positionishown in full lines' in -Fig'. 2 to-the dotted line position thereo f inthe same fig ure. -The arm 20'has a "bracket 22 extend arm 23 which latter arm is carried by. the shaft 13, in ord'enthat it may be oscillated ing outwardly from -one s-ide and this bracket 1s -pivo'tally connected 'to another to communicate motion to the'door5?* The;

shaft l mayhave yokes Q ifjattached to it which normally extend inwardlygtliat' is to say, when the door is closed, they willproject toward the track, and theseyokes are supplied with weights 25 vhich---are intend ed to overcome gravity andifriction of the gate operating mechanism for returning the parts to a closed position automatically for closing the door after a car has passed the gate. The gate operating mechanism is under the control of the weight of the car until it passes the gate, and the gate is held open against the action of the weights until the gate is clear.

The shaft 13 is oscillated by the Weight of the cars when passing over the track, through the means of levers 26 and 27 which are assembled with the inner end of the lever 27 pivotally connected to a base or tie on a pivot 28. The pivot 26 is mounted at one end on a stud or pivot 29 which is anchored in one of the cross ties. The opposite end of the I lever 26, or what may be termed the outer end thereof, is connected to the lever 27 between its ends by a pivot 30. The lever 26 has a post 31 secured to it, and the said post carries a tread engaging bar 32 which extends parallel with one rail and normally has its upper edge above the top of the rail. This tread bar is in position to be engaged by the wheel of the car or rolling stock which passes over the rail, in order that the tread bar may be depressed to oscillate the lever 26. The tread bar is jointed, as shown at 34, by a hinge, and one end of the said tread bar is pivoted, as at 35, to a rail or the like, which will retain it in operative relation to the rail. The lever 27 has apost 36 carrying a tread bar 37 in operative relation to the other rail, and the said tread bar 37 may be of the same general construction and arrangement as the tread bar 32, and when a car travels along the rail and depresses the tread bars, the weight of the car will be communicated to the levers unifor nly and without undue vibration, since the car first passes up the inclined portions 40 of the said tread bars. A link a], is pivotally connected to the lever 27, and this link 41 is pivotally connected to an arm 42 secured to the shaft 13, and hence, it will rock the oscillating arm 42 and rock the shaft 13 to a degree which will. cause the arm 23 to move outwardly to thedotted line position shown in Fig. 2 to open the gate, whereas the weights will return the parts to their normal position after the weight has been removed from the tread bars.v

Two sets of levers 26 and 27 and parts associated therewith by which the weight of the car is communicated to the shaft, are provided on each side of the gate, but as these parts are duplicated, a description of one set will, it is thought, sufiice as a disclosure to enable one skilled in the art to practice the invention. The two sets of levers are provided on each side of the gate in order that the tread bars may be of such length as to extend to positions near the gate so that the tread bars may serve to retain the gate in an open position until the weight of the car is removed from them. The operating levers, which are closely associated with the cross ties, may be protected from the accumulation of foreign substances by housings, and thus the operating of the mechanism will not be impaired by such accumulations the said housings being illustrated in Figs. 6 and 7, and they may be modified to suit particular requirements. I claim: V r 1. In a mine door operating mechanism, a door mounted to guard a track, levers having their inner ends pivotally connected to i afixed object, posts carried by each of the said levers, tread bars carried by said posts and supported parallel and in close proximity to one of the rails, levers having their inner ends pivotally connected to bases, means for pivotally connecting one each of the first mentioned levers to one each of the second mentioned levers, posts connected to the second mentioned levers, tread bars supported by the posts in proximity to the other rail link is pivotally connected, means for oscillatably mounting the last mentioned arm, a bracket carried by the last mentioned arm,

and means for pivotally connecting the sec-' ond mentioned arm to the last mentioned arm for communicating the motion of the shaft to the gate.

2. In a mine door operating mechanism,

a door mounted to guard a track, levers having their inner ends pivotally connected to a tixedobject,posts carried by each of the said levers, tread bars carried by said posts and supported parallel and in close proximity to one of the rails, levers having their inner ends pivotally connected to bases, posts connected to the second mentioned levers, tread bars supported by the posts in proximity to the other rail and projecting above the said rail, means for pivotally connecting one.

each of the first mentioned levers to one each of the second mentioned levers, a door oper ating shaft, links and arms connecting the second mentioned levers with the shaft for operating the shaft, a door operating arm carried by the'shaft, a link pivotally con nected to the door, an arm to which the link is pivotally connected, means for oscillatably mounting the last mentioned arm, a bracket carried by the last mentioned arm. yokes extending inwardly from and attached to the shaft when the gate is closed and weights carried by the said yoke, and means for pivotally connecting the second mentioned arm to the last mentioned arm for communicating the motion of the shaft to the gate.

WILLIAM KORTKAMP,

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