US992607A - Dump-door-operating mechanism. - Google Patents

Description

1 P. SEMERG. DUMP noonorsn'frma MBGHANISM.

APPLICATION-'FILED FEB. 6, 1909. l 992,607-, PatentedMay 1.6, 1911.

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0l *im F. SEABERG'. DUHPDOOR OBBTING IBGHNISM. v ArrLIoATIoI lrum: rms. e, 1909. 992,607., f- Patented May 16, 1911.

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9@ n A A A A A A Am P. SEABBRG. l DUMP DOOR GPEBATING- MEGHANISM'l APPLICATION FILED I EB. 6, 1909.

9.192,607. Patented May 16, 19111.

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, l".A SEABERG. DUMP DOOR OPERATING MEGHANISM. APPLICATION FILED FEB. 6. 1909.

Patented May 16, 1911.-

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Specification-@Letters Patent. i Pate Application med February 6, 1909. .Serial No. 476,524.

nteaiviay 1 6, 1911.'v`

' dependently of .the chainwhen the 'same is closed. The manner of accomplishing this and other objects of my invention willmore clearlyappear fromthe following description and claims, taken in connection with the accompanying drawings, in which- Figure 1 is an end view of a car, partlyv broken away,V showing the doors vin closed position. Fi 2 isa view corresponding to Fig. 1, showing the doors open. Fig.-=3 is k a side elevatio'nofthe. en'd' ortion ofthe car. Fig. 4 is a detail view o the adjoining portions of two doors, together with partpf the 'operating mechanism. Fig. 5 is an ndl view of the'part of the structure show-n in Fig. 4. lFi 's. 6 and 7'. are detail views of the connection between adjoining ends "of the sectionaloperating shaft. I

In the accompanying drawings, 'I have illustrated onespecic form of mechanism 85 embodying myv invention, but the principle of the invention is not de ndent upon the specic mechanism there il ustrated andmay beappliedfin other forms.

.The car illustrated in the present instance i 40 comprises a center sill composed of channel beams 1 connected by webs2 and cross plates 3; Extending transversely! of the .car and resting'uppn the' center sillfare the cross sills 4,1and a ongitudinal central v`floor plate 5 *4.5 lies abovethe center sill and is'snpported uponpedestals 6,`to which the hinge `plates' `7 Aare'alsosecured.` Upon each side of the center sill 'and hinged -to theplates 7 is a l longitudinal series of. dumpdoors 8, each door occupying the opening framed by the center sill, the adjoining cross sillsand the nated generally by the'numeral 9. Preferab1y,'half of the doors upon each side ofthe 10 proved meansfor operating. the doors of v'cated at 12. When the sections *94' are inn center sill are operated by a winding shaft 9 extending inwardly from the end of the car half. the length-thereof. Each winding shaft 9 comprises bearing parts rotatably Y mountedin the ends of the cross sills, and

' eccentric door supporting sections vbetween the cross sills and opposite thedoors. The

bearings of the operating shaft in the cross sills are located insideof the outer edge of thedoor when the latterfis in'cl'os'ed position, and winding chains are securedat one *end to'said Operatingshaft and attliel other end f `'to said` doors. The eecentricity of thedoor" i supporting sections ofthe operatingshaft ris sucient to cause said parts to Alie 'ontside 7 0 of the' outeredges of the doors when the shaft is rotatedy in the proper direction, and the parts are so disposedV and proportioned that atv the time the .doors reach the levei ofthe operating shaft the eccentric portion is dlrected outwardly, thereby affording" clearance for the passage of the door,-a fter which the continued rotationof the operating, shaft brings the eccentric-.section bei neath- `the doors to take the strain of the 8 0 doors and superposed load pif from the operating chains. When the doors are closed,

as above' described, the eccentric sections off v.the operating shaft will lie in substantially the same Vertical plane with the supporting journals of the' shaft, Ithereby avoiding anyy tendency due tothe weight of the doorsand load to. rotate the shaft.`

' Referring in detail 'to' 'the construction,

illustrated, the operating-shaft. consists'foffQO separate sections 9. Each ofthe Y sections 9. is bent to the form' of a crank having a central eccentric sectionofset 'from the end] or bearing sections. In the present instance, I havefshown the'sections 9 connected by 9 5 meansof a sleeve 10 which cored ont axially, a's'indicated at 11 in Figs. 6 and 7. Adjacent the ends, the axial opening 11ex tends radially through the sleeve, as indiserted inthe sleeve 1'0, the crank arm aparts-.

thereof lie in thepart l2 of the opening 'of Y I the sleeve 10, thus preventing rotation of the connected sections and sleeve. For the. purpose of insuring the parts against disopenings in the sleeve and shaftsections,

"ande'yes 14 in the ends of these bolts may be utilized for the purpose of 'attaching the operating chains 16. The sleeves 10 .serve 11o 'loo placement, bolts 13' vmay be passed lthrough not only as a coupling between the ends of the sections 9, but also serve as a winding drum for the operating chain. The sleeves 10 are journaled in openings in the cross` bearers 4 and are further supported by hear-- ings in hangers 16 depending from and secured to the floor plate 17. Preferably, the hangers 16 and cross bearer 4 are spaced `apart and the winding chain received be- .the doors at their outer corners and provided at their lower ends with openings to receive short cross shafts 19'which extend beneath the cross sills and afford a connection between adjoining doors. The ends of the operating' chains are connected to the constructed.

connected cross shafts 19. It is not essential, however', to the application of the broad principle of my invention that the adjoining doors be connected asabove described and that the operating chains be'connected to the doors through the medium of the member which extends between the doors; and the principal form of sectional operating shaft described, while forming a con-- venient means of applying my invention, is

not indispensable, as the operating shaft With'eccentric sections might be otherwise Any suitable means may be employed for imparting rotation to the operating shaft. In the present instance I have shown a hand lever 2l provided lwith a reversible pawl 22 adapted to coperate with a pinion 23 secured to the end of the operating shaft beyond the end wall of the car. A detent 24 also cooperates -with a pinion upon the shaft 91 to restrain the same against accidental movement.

Referring to Fig. 2 of the drawings, it will be apparent that when the operating shaft is rotated in counter clockwise direction, the door will be raised by the winding chain, and, as above stated, the part-s are so arranged and proportioned that when the outer edge of the door reachesthe level of the operating shaft the eccentric portion of the shaft will be directed outwardly, thus affording clearance for the door to pass the shaft, after which the continued rotation of the operating shaft will carry the eccentric part of the' shaft beneath the door, as illustrated in Fig. 1. In this position the eccentric part of the shaft lies in the same vertical plane with the supporting bearings of the shaft., whereby there is no component of the weight of the door and load tending to rotate the shaft. In the present instance, the shaft. 9 is shown as supporting the door through its contact with the under 'sides of the castings 1S, said castings being formed with a curved bearing surface conforming to the'path of movement ofthe eccentric part of the shatlt as ,it rides beneath the enter edges of the doors.

I claim 4 1. In a dump car a door hinged at one edge, a rotatable operating shaft journaled adjacent the free edge of said door, said shaft having a chain-winding section and an eccentric door-supporting section, and a chain connected to said shaft and door.

2. In a dump car a door hinged at ne edge, a rotatable operating shaftjournaled beneath the outer part of said door, said shaft having an eccentric section opposite said door sov proportioned as to clear said door when said shaft is rotated, and a chain extending from said shaft to s aid door.

3. In a dump car a door hinged at' one edge, a rotatable operatincf shaft journaled adjacent the free edge of said door, said shaft having concentric chain-winding sections mounted in bearings at the sides of said door andan eccentric door-supporting section opposite said door, and a chain connected to said shaft and door.

4. In" a dump car a door hinged at one f edge, a rotatable operating shaft journale'd adjacent the free edge of said door, said Shaft having concentric chain-winding 'sections mounted in bearings at the sides of said door and an eccentric door-supporting section opposite said door, a chain connected to 'said shaft and door, the parts being so proportioned that when said chain is wound on said shaft to close said door said eccentric section will lie beneath said door in substantially the same vertical plane with said concentric chain-winding sections.

5. In a car an underframe, hinged dump doors, a sectional shaft journaled in said underframe adjacent the free edges ofsaid doors, each section comprising a concentric bearing` part and an eccentric door-supporting part, and connecting members between edges of said doors, each section comprising an eccentric door-'supporting part, connecting members journaled in said underframe and non-rotatably engaging the adjacent ends of said sections, and winding chains secured to said connecting members and to said doors.

7. `In a car, an underframe, dump doors, a shaft journaled adjacent the free edges of said doors, said shaft having eccentric parts adapted in one posit-ion of'said shaft to underlie and support said doors and in anotherposition to clear the edges of said doors, chains secured to said shaft and doors, members connecting adjacent doors,. and means for rotating said sha-ft."

f 8. In a car an underframe comprisin -central and transverse sills, series of doors framed between said sills and hinged adjacent the longitudinal center of the car, connecting members, each secured to adjacent doors and extending beneath said.

transverse sills, winding shafts and chains for raising and lowering said doors, said shafts having eccentric parts opposite said doors, said eccentric parts being adapted in one position of said shaft to underlie and support said doors and in another position to clear the edges of said doors.

`9. In a car an underframe comprising central and transversesills, a longitudinal serie'sof doors framed between said sills and a longitudina hinged adjacent they longitudinal center of the car, connecting members, each securedto adjacent doors and extending beneath said transverse sills, a winding shaft j ournaled in 20 said transverse sills beneath the outer part of said doors, said shaft having eccentric sections opposite said doors so proportioned yas to clear said doors when said shaft is rotated, and chains extending from said 25 shaftto said connecting members.

In testimony whereof', I have subscribed my name,v

, FREDERICK SEABERG. Witnesses:

WALTER A. Soo'l'r, HENRY A. Pnlzxs.

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