US812783A - Car-door-operating mechanism. - Google Patents

Description

No1-812,783. PATENTBD FEB. 13, 1906. A. CAMPBELL..

GAR DOOR OPERATING MECHANISM.

APPLICATION FILED DIE()l 2, 1905.

3 SHBBTSHB'BT 1.

QQQQ Q QQ Q Q Q Q l?) l! i QQ/Q Q Q Q. Q Q 9'@ 5 I ms No. 812,783. PATBNTED FEB. 1s, 1906.

V A. CAMPBELL'. GARDOOR OPERATING MECHANISM.

APPLICATION FILED 12,110.2, 1905.

3 SHEETS-SHEET 2.

No. 812,783. PATENTBD PEB. 13, 1,906.

A. CAMPBELL.

` GAR DOOR OPERATING MECHANISM.

APPLICATION FILI-ID DEO, 2, 1905.

3 SHEETS-SHEET 3.

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ARGYLE CAMPBELL, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE ENTER- PRISE -RAILWAY EQUIPMENT COMPANY. OF CHICAGO, ILLINOIS, yA

CORPORATION OF ILLINOIS.

oAn-ccoR-OEPERA-rme mEcHANasm.

Specification' of Letters Patent.

Patented Feb. 13,1906.

A*Application tiled December 2, 1905. Serial No. 290,006.

To 71,371,011 it may cm1/cern:

Beit known that-I, 'ARGYLE CAMPBELL, a citizen of the United States, residing at Chicago, in the county of Cook and State oi Illinois, have invented a certainnew and useful Improvement in- Car-.Door-Operating Mechanism, of which the following is a specification. 1

My invention relates to car-door-operating mechanism/and particularly to such doors when placed in the iioor or other lower portion of the car, so that theymay be opened to dump load from the car.

The object of my invention is-to provide such a mechanism which can be very easily and cheaply made and installed, which is ei'-A lii-cient'in operation, and lnot readily liable to get out of order.

My invention broadly consists in the use of a shaft or equivalent mechanism carrying. a crank-arm connected to the door to be oper- I ated by a connecting-rod, there being a iiexi- `tions which they assume ble connection somewhere in the mechanism, so. th at by rotating the shaft between two different positions the door may be opened and closed ard when in the latter position held in that position without any very great, if any,

strain upon special locking mechanism provided to hold the device in such a position.

The invfentin further consists in more s pe' cie details, which will be hereinaftersmore' fully described and claimed Aas .the specifica,- tion proceeds.

Figure 1-is a partial side partly in section, of' a car having the specific embodiment of my invention applied thereto.` Fig. 2 is a -sectiornl end view on line 2 of Fig. 1, showing the parts illustrated in Fig. 1 when the floor-door is closed. Figs. 3, 4, and 5 are detail views of the operating mechanism7 showing7 respectively, the parts in the posil hen the door is closed, partly open, and fully open. .F ig. 6 is a corresponding detail end view of Fig. 1. I have illustrated the device of my invention as ap lied to a-carin which the floordoors are inged crosswise oithe car and swung downward, so that the load is dumped at or near the transverse center of the car; .but my invention is just as applicable to a ear in which the floor door or doors are pivnl ngntdr otvrlnor'parallei tothe longitudinarw or lino of the carland a door or doors swung down to dump the load either at the side of the car or near the longitudinal center line oi 5 5 the car without departure from'the principles of my invention.

In Fig. l1 the'numeral 11 indicates plates, channel -irons, Ifbeams, or built -up sections, forming the central girder of a car, and 6o the numeral 12 indicates suitable corresponding side sills of a car, the same being intersected atx suitable intervals by cross-bearers or bolsters (not shown) `to form the ordinary underframe of a car. Over this-underframe is placed a floor 14, having in it at suitable spaces registering with the spaces in the underframe iloor doors 15. In the particular instan ce here shown these doors 15 are hinged at 16 to the floor of the car and are adapted .7o to swing from the ullline position of Fig. 1 to the dotted-line position of that iigure, so that when in the latter position they discharge the load upon them toward the transverse center lineof thevcar. i x

Journaledstnsversely of-'the car in suitable bearings in the underframe, with itsaXis parallel to theaxis of the hinge 16; of tlie door or doors, isa shaft 2()` This shaft is ,as slfiwri, mounted in such 'exposition that it is below 8o the plane ofr the floor of v theca'r andthe iloor` doors when they are in normalor ulleline po.

It is also mounted to one ve of the front edge 21 of the door proper and the frontiedge 22 ofthe casting 23, se- -85 cured to the front edge of the door, as hereinafter described, so that the door 15, with the casting 23 upon it, can swing backwardand forward between the full-line and dotted-line ,I positions of Fig. 1 without striking the shaft. 9g This shaft should, however'7 be mounted as near as it conveniently can to lthe arc oi travelj g of the edge 22 of the casting 23. i x

Rigidly mounted upon the shaft 2() is\ cranlcarm 25 for each door to be operated by 95 the device. In the particular instance shown in the drawings where two bers are operated there are two such cranks, and if more doors were operated by the shaft a correspondingly increased number of crankarms would be roo Iused. Iivotally connected to the outer' end of each crank-arm on a pin or pivot 27 is a connecting rod 28, somewhat longer and 'preferably about twice as long as the crankarrn 25. This connecting-rod 28 is preferably r o5 madein 'angular form, as showinso'tliit'wiien in the normal positions of Figs.l 1, 3, and 6 1 Itsiouldbe noted'that the connecting-rod the pivot 27, heretofore described, will lie in l 28 passes around the shaft 20 onfthe side away approximately the -same vertical line as a pin i from the hinge of the door when the door is or pivot 30 at the opposite end of the connectclosed, withthe result that the shaft forms al ing-rod 27, so that the weight upon this fulcrum for the connecting-rod to bearagainst 7o crank-pin causes very littleleverage about while moving from the position of Fig.l 3 Ito the center of the shaft 20, tending to rotate that of Fig. 4 and backagain, so that the upthe crankarm 25 about the center of the per endso?, the connecting-rod carrying-the shaft. f pin 30 acts as a lever to positively move. the 1o The crank-pin 30, heretofore described, endoor. This feature 'assisted by the fact. 7 5 ters and is adaptedto travel in an elongated that a notch ist-at in the connecting-rod slot :f1 in the casting 23, heretofore described, and there it engages the shaft when the parts secured to the under side of the floor-door. are in normal position. i

hiscrank-pin 30 may be simply a journaled Having thus described my invention, what i 5 roller adapted to travel backward and for- I claimas new, and desire to secure by-Let'- 8o:

ward in the slot 31, the roller bearing on the ters Patent, is`- normally horizontal sides of the slot 31, asis 1. In mechanism of the class described, in apparently the casein Fig. 1, or it may carry combination with a suitable supportinganinde endent antifriction-roller 33, adapted frame a'hinged car-door to bei-moved bezo to trave backward and forward along the base tween' closed and open positions ,"a shaft piv- 8 5 35 of the casting 23 or other suitable track, as otally mounted adj acentvto, but clear of, the shown in Fig. 2. line of travelof the front edge of the door; a 0n the end ofthe shaft 20 Iprovide a suitcrank-arm on said shaft and a connectingable hand-lever'38, a ratchet-wheel 39, and rod of/greater length than the 4crank-arm 2 5 pawl or pawls 40, of any of the ordinary types con i ected'at one end to the crank-arm and at 9o of construction, so that the shaft 20 may be 'the other end to the door; and a ,pin or roller moved by the handle between its different carried by one of the members of the mech` positions, as will be hereinafter described, anism sliding ina slot in an adjacent member and locked in any desired position by' pneans of the mechanism, whereby the shaft may be 3o.of the pawl mechanism. rotated between two different positions to 95 In the operation of the device the parts are open and close the door, as descrbed. normally in the full-line position of Fig. 1 and 2.` In mechanism of the fclass described,fin the positions of Figs. 2, 3, and 6, with the combination with'A a suitable supportingfloor-door in closed position. The operator, frame; a hinged car-door to be moved be- 35T' desiring to dump the load upon a particular 'tween closed andopenpositions; ashaft pivreo floor-door or floor-doors controlled by one otally mounted adjacent to, but clear of, the shaft 20, takes hold of the handle 38, and after line'of. travel of the front edge of the door a releasing the pawl or pawls 40 from the V crank-arm on said shaft and a connectingratchet-wheel 39 rotates the shaft and at-v lrod of greater length than the crank-arm con- 4o tached parts in a clockwise direction when nected at one end to the crank-arm' and at .Io5` Aseen as in Fig. 3, with ther-result that the pin the otheriend Ito the door; a pin or roller car- 30 is moved to the right in that figure toward :ried by one of the members of the mechanthe position of Fig-4. As this takes plea-.q

ism sliding in a slot in an ad.'acent member of this pin 30 kmoves along the slot 31 to the s the mechanism, whereby t e shaft may be right and the load upon the floor-door or the rotated between two different positions tol rio weight of the door itself ygreatly assists the open and close the doorg'mea'ns for rotating operator'in moving the parts to thc position said shaft; andmeans for locking the same of Fig. 4, If thismuch of an opening is sufyin closed position, -cientfor the desired discharge of load, the 3. In mechanism ofthe class described, in y 5o motion maybe stopped at this point but if av combination with suitable supporting mechr 15 further opening is desired the rotation of the anism, and a hin ed car-door to be* openedr shaft 2O is continued until the parts assume and closed; a shatmounted-.approximately the positionof Fig. 5, with the result that the vdoor is given a wide opening because the lparallel to lthe axis of thehinge of the door adjacent to, and clear` of, the swinging front crank-armY and the connecting-rod are in substantially a'straight line, as shown, thereby edge of the door; a crank-arm upon saidshaft; 1 2 o insurin automatic dumping. of even a veryf la connectingarod .pivotally' connected at one sticky oad. Whenthe dumping has beelif' yend' to saidv crank-arm, and a pin-and-slot completed,y the operator takes hold of thel connection between .theuopposite end of the crank-arm and the door, whereby the shaft 6o handle and rotates the shaft in the oppositel direction, first, tothe position of Fig. '4, and

may be rotated between two different posi- 1e 5 finally to the positionof Fi 3, in which positions to open'and close .the door. 4

4.- In mechanism ofthclassdmldin tio'nthe door or doors are c osed, and than reT M msetsthe pawl or pawls 40, ,thereby locking the device 1n normal position.

amsm,.and a hinged car-door to be opened combiiatinwith suitable Asupporting mech- .and closed fa'shaft mounted approximately :3o

tion between the opposite end ofthe crankarm and the door, whereby the shaft maybe rotated between `two different positions to open and close the door; and mechanism for operating the shaft and for locking the shaft with the door in closed position.

5. In mechanism of the class described, in combinati on with a suitable supporting-frame and a hinged door to be opened and closed; a sjiaft parallel to the axis of the hinge of the oor mounted clear of but adjacent to the path of travel of the front edge of the door and in a line approximately pe endicular to the plane of the door'when the oor is closed; a crank-arm on said shaft normally extending away from the door, aconnecting-rod havingone 'end pivotally mounted on said crank-arm, extending toward the door past theshaft on its side away from the hinge of the door, and a pin-and-slot connection be- Y tween the second end of the connecting-rod in approximately tlgle same andthe door. y

6. In mechanism of the class described, in combination with a suitable supporting-frame and -a hinged door to be opened and closed; a

' shaft parallel to the axis of the hinge of the door, mounted clear of but adjacent to the path of travel of the front edge of the door; mechanism for rotating the shaft and for locking it in desired position; a crank-arm on said shaftl normally extending away from the door; a connecting-rod having one end pivotally mounted on said crank-arm, lextending toward the door past the shaft on its side away fromthe hinge of the door to a point in which its second end of the connecting-rod is lane perpendicular to the door as the cranii-pin on its'lower end, and a pin-and-slot connection between the second end of the connecting-rod and the door, whereby as said shaft is 'rotated said door is opened and' closed, as described.

77 In a car, in combination with the underfrare rand a normally level pivoted floordoor, adapted to be opened and closed to discharge the load,y a shaft mounted .below the floor of the car adjacent to the path of travel of the edge of the Hoor-door for rotating said shaft; means for locking said shaft ina desired position; a normally downwardly-extending crank-arm on said shaft; and a connecting-rod of. greater length than said crankarm pivotally mounted at one end upon said crank-arm, extending toward the door on the side of the shaft away from the hinge of the door7 and having its opposite end pivotally connected to the door, there being a slidable connection between two adjacent members of the mechanism whereby rotating the shaft between two different ositions opens and closes the door, as descri ed.

8. In a car, in combination with a suitable underframe,V and a car-floor having doors therein adapted to swing down to discharge load; a shaft journaled below the floor of t e car adjacent to the swin ing edge ofthe door; a crank-arm normally shaft; aconnecting-rod of greater ength than the crank-arm pivotally connected to the crank-arm, extendin 'past the shaft on the side away from the hlnge of the door toward the door to a position in which the upper en d of the crank-arm and the pivot on its lower end are normally in approximately a vertical line; a dpin upon the u per end of said crankarm-a apted to traveim slot upon the floordoor; and mechanism for rotating said shaft and for lockingit in t-he desired position.

.9. In mechanism of the class described, in

combination with a suitable supporting-frame and a door to be opened and closed; a crankarm pivoted adjacent to the path of travel of the edgel of the door; means for rotating said crank-arm and for securing ity in desired position; a connecting-rod pivotally connected to the crank-arm andconnectcd by pin-and-slot connection to the door, the

whole being so arranged that by rotating the shaft to one position the door may be closed, and that by rotating the shaft to another position the door swings past the pivot of the Acrank-arm and is given a wide opening due to ependm from said a the connecting-rod and crank-arm being in approximately a straight line7 as described.

In Witness whereof I have hereunto subscribed my name in the presence of two witnesses.

ARGYLE CAMPBELL. Witnesses:

`CAROLYN RAFTEY,

DWIGHT B. CHEEVER.

IOO

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