US1011254A - Dump-car. - Google Patents

Description

F. SEABERG.

- DUMP GAR.

APPLICATION FILED SE1-PT. 21, 1.90.91 l 1,01 1,254. Patented Dec. 12, 1911.

l 6 SHEETS-SHEET l. @L

P. SEABBRG.

DUMP GAB.

APPLICATION FILED SEPT. 21,*1909,

Patented Deck 12, 1911.

6 SHEETS-SHEET 2 Patented Dec. 12, 1911.

P'. SBABERG.

DUMP GAR. Y APPLICATION FILED $1121.21, 190s.

P. SEABBRG.

DUMP GAB.

APPLICATION FILED SEPT.21, 1909.

PatentedDec. 12, 1911.

F. SEABERG.

Dump CAR. l PPLIUATION FILED SEPT. 2 1, 1909.

Patented Dec. 12, '1911.

6 slums-SHEET' 5.

Pg SABABERG.

"DUMP GA@ v APPLIOATION FILED SEPT. 21, 1909. 1

Patented Dec. 12, 1911.

SHEETS-SHEETS.'

FREDERICK sEABERe, oFcHIoAGo, ILLINOIS, Ass'IGNoR To NATIONAL yDI'IMP 'can COMPANY, OFl CHICAGO, ILLINOIS,v

A CORPORATION 0F DUMP-CAR.

Specification of Letters Patent.

i,oirasa.

.To all whom-t may concern: Be it known that"I,"FREDERICx SEABERG, a citizen of the United States, residing at Chicago, in the county vof Cook and State of Illinois, have invented certain new and useful Improvements in Dump-Cars, of which the following -is -a specification.

The object of my inventionis to provide rimproved operating mechanism for the 1o' doors of dump cars.

i I have illustrated the invention vas ap-y plied to anore car having sloping ends and 'a central hopper bottom toward which the lower side inclosing wals" also slope.

While the invention is particularly adaptedto this type of car, it will beobvious that its utility is not restricted thereto, and that the principle of my invention, as. hereinafter described and' claimed, may be applied to cars of other types.

- In the drawings-Figure 1 is across sectional view taken at about the center of the car and showing the operating mechanism. Fig. 2 is a View similar Ito Fig. 1,

showing the doors in open position. Fig.

3 is a view similar to-th'e preceding views,`

but for the sake `of clearness showing only p artzof the operating cha-ins. .F ig. 4 isa view similar to Fig.v '3, 4but showing the` operating chains omittedl from that view. Fig. 5 is a plan view of the car. .'Fig..6 is a fragmentary sideelevation.

The'body .of the-(car to which I have shown my invention applied comprises vertical side walls 1 and sloping ends 2. Plates 3 secured to the'lower' parts of the side walls alsoqslopeginwardly .toward the central hopper opening, the inner parts of the sloping sections 3 being bent vertically downward, as indicated at 4. The parts 3 and 1 .may be constructed individually or -of separate plates,A asv illustrated. The dump doors 5 in 'their closed position are horizontal and-'have upwardly projecting outer'edges, -which at their, upper extremities 6 are hinged to a xed part of the car.

Itwill be noted that the inward sloping.

side sections 3 in .connection with the lower part of the Vertical sides 1, together with the planej of the door opening in this manfl the horizontal members 7, form box girders extending along each side vof the car, the. vertical parts of the doors. extending ner, aifull' opening of the doors may be se- 'doorswill be raised to closed purpose'.

ratenteaneaiaieii.- Application led September 2 1, 1909. Serial N o. 518,854.`

cured without lowering thir inner edges tracks 9 beingsuspended by upward extensions 10 from a fixed -p'artv of the oar body.y The tracks 9- incline downwardly toward the car sides and at their upper extremlties are provided with a horizontal section 11. It 'will' be apparent that as the shafts 8 tracks 9, thev doors 4will be permitted to move to the open position illustrated in Fig.'4 2, and that -as the shaftsjare moved upwardly toward the center of the'car, the position, as illustrated in F igs.' 1', 3 and 41. i.

. In `order to impart the requisite ymove ment tothe operating shafts 8, 'I provide move downwardly. along the extends transversely of the car from the lower extremity of', the hopper bottom to a point-'above the shaft 12, as clearly shown in Fig.. 6. This housing may consist of vertical plates 14' and v15- connected by an inclined section 16 which .may be formed integrally with the `plate 15. ,"Ihe' shaft 12 is'journaled in' vbrackets 17'seci`1red to the plate 14, and the ends of the shaft 1.2 may p'rojectslightly beyond-the car sides,where they may be rotated by means of a wrench,

or otherwise, having a squared endiforthis Beneath the `shaft 12 andl substantially ,the same. plane therewith are sheaves 18 journaled upon trunnions'19 supported'by the plates 121-15. The sheaves 18 are prof' vided with arallel., chain' grooves. The shaft 12 ispreferably continuous across the car, thus operating both doors simultaneously, but if desired it is apparent thatitv i could be made in two parts meetingat" the center of the car, thus providing" for operating the doors separately. One 'of the grooves in "each of the sheaves' 18 .en-

gaged by a cable or chain'20 secured atits ends,as indicated at 21 and 22, to the shaft 12 and intermediate its ends, as indicated at 23, to the sheave 18.y Preferably, the shaft 12 is providedwith a spiral groove 24 to 'guide the chain -in its winding' thereon. The opposite .ends of the chain 2O winds' upon opposite sides of the shaft 12 from which it will-be apparent'that as the ico shaft is turned in one direction the sheave 18 will be rotated and when the shaft is rotated in the opposite direction the sheave also will be rotated in the opposite direction.

As clearly shown in Fig.` 4, the second groove-in each of the sheaves 18 is occupied by a'chain or cable 25 secured to the sheave at 26. The opposite end of the chain 25 is secured to the operating shaft 8. ,ls clearly shown in Figs. 3 and Ll, each of v e sheaves 18 is provided 'with several spur teeth 27 adapted to engage a spur wheel 28 xed to the shaft 8 when the latfrtrier rests upon the upper horizontal part 11 of the track 9. The track 5)-11 is provided with projecting pins or teeth 28 which coact with the spur gear 28 Iupon the shaft 8. p

Upon reference to Figs. 3 and 4, it will be apparent that when the shaft 12 is rotated in a direction to impart rotation to the sheaves 18 in the direction indicated bythe arrows, the spur teeth 2i' acting upon the spur gears 28 will cause the shaft 8 to roll downwardly upon the track 9. As soon as the shaft 8 reaches the inclined part 9 of the track the weight of the door and superimposed loadwill carry the shaft 8 to the bottom of theincline as illustrated in Fig. 2. During the movement of the shaft 8 downyward along the track. 9, the-engagement of the spur gear 28 with the teeth 28 will cause said shaft to rotate, thereby winding up the chain 25 upon the shaft 8 and unwinding the chain 20 from the centra-l part of the 'shaft 12 and winding the same about the outer part thereof. The positions occupied by the different elements when the doors are in'open position are illustrated in Fig.

v 2. Referring to F ig. 2, it will be apparent that when the shaft 12 is rotated in such direction as to cause the sheave 18 to turn in the direction indicated bythe arrow, chain 25 will be wound up on said sheave and unwound from the shaft 8. The turning of the shaft 8 caused by the unwinding of the chain 25 therefrom imparts rotation to said shaft, whereupon the engagement of the spur gear 28 withvthe teeth 28 causes the shaft 8 to travel upward along the track 9, rais- `ing the door 5 to closed position. In the closed position of the doors, the shafts 8 rest upon the horizontal part 11 of the track,

in which position the weight of and upon thedoors has no tendency to move the shafts 8.

It will be noted that the chain 25 winds upon the shaft 8 in line with the pitch circle ofthe gear 28. Otherwise stated, the winding drum 35 upon the shaft 8 is of the same diameter as the vpitch circle ofthe gear 28, by reason of this relation the spur 'teeth 27 acting upon the spur-gear 28 at the beginning of the door opening movement., as|

lshown in Fig. 4, inisuch manner that the chain 25 winds upon the shaft 8 without slack or strain at the time the shaft 8 is being forced from the level track section 11 'by the spur teeth 27.

While the foregoing description and the dra-wings are confined to one specific embodiment of my invention,.it will be apparent that the principle thereof maybe applied in mechanisms of different 'specific forms.

I claim:

1. In a car of theclass described, a power shaft, a sheave, gearing between said power shaft and sheave, a reciprocable door operating shaft, and a winding cable connection between said sheave andreciprocable shaft.

2. In a car of the class described, a power shaft, a counter shaft, a door operatingshaft, andI winding' cable connections between said shafts.l

3. In a car of the class described, a power shaft, a counter shaft, a door operating shaft, winding cable' connections between said shafts, and means to cause said operating shaft to rotate when reciprocated and to reciprocate when rotated.

4. In a. car of the class described, a rotatable power shaft, a rotatable and recip. rocable door operating shaft, a counter shaft,

winding cables connecting said-power shaft.

and counter shaft and connecting said counter shaft andoperating shaft, and means to cause said operating shaft to reciprocate when rotated and to rotate when reciprocated. f

` 5. In a car of the class described, a rotatable power shaft, a rotatable and reciprocable door operating shaft, a counter shaft,

winding cables connecting said power shaft.

and counter shaft and connecting said counter shaft and operating shaft, a spur gearv upon said operatino` shaft, coacting teeth upon a fixed part of the car, and means to cause said operating shaft to reciprocate when rotated and to rotate when reciprocated.

6. In a car of the class described, a power shaft, a. sheave. in substantially the salne plane with said power shaft, a reciprocable door operating shaft extending at substantiallv a right angle to said power shaft, gearing between said power shaft and sheave and a winding chain connection between said sheave and reciprocable shaft.

7. In a car of the class described, a power shaft, a sheave in substantially the same plane with said power shaft, a reciprocable dooroperating shaft extending at substantially a right angle to said power shaft, gea ring between said power shaft and sheave, a winding chain connection between said sheave and reciprocable shaft, a support for said reciprocable operating shaft,means to cause said operating shaft to rotate when ofthe hinge axis of said door, a sheave in substantially the saine plane .withsaid shaft, a winding cable secured at its ends to said shaft and'at an intermediate point to the circumference of said sheave, a. reciprocable operating shaft parallel to the hinge axis of Said door, and `a. wlnding cable secured to said operating shaft and to said sheave.

9. In a car of the class described, a hinged door, a power shaft extending transversely ofthe hinge axis of said door, a sheave in substantially the same plane with said shaft,

awinding cable secured at its ends to said shaft and at an intermediate point to the circumference of said sheave, a reciprocable loperating shaft parallel to the hinge axis of a v teeth upon said support.

said door, a winding cable secured to said operating shaft and to said sheave, a support for said operating'shaft, a spur gear secured to said operating shaft, and coacting Y 10. In a car ofthe class described, doors hinged adjacent the sides thereof, a power shaft extending transversely of the car 30 above said doors, sheaves below and substantially in the vertical plane of said power shaft, a' housing around said powerV shaft and sheaves and extending between the car` sides, supports inclining downwardly toward the sides of the car, reciprocable operating shafts between said doors and supports,

i w gearing between said power shaft and sheaves, winding cables secured to said sheaves and operating shafts, spur gears on said operating shafts, and coacting teeth on f said supports.

v1.1. In a' car of the class described, doors hinged -adjacent the sides thereof, a power shaft extendingl transversely of the car above said doors, sheaves below and substantially in the vertical plane of said power shaft, va housing around'saidpower shaft v'and sheaves and extending between the car sides, supports inclining downwardly toward the sides of the car'and having horizontal sections 'adjacent the center of the car, reciprocable operating shafts between said i doors and supports, gearing between said power shaft and sheaves, winding cables secured to said sheaves and operating shafts,

spur gears on said operating shafts, coacting teeth on said supports, and -teeth fixed to said sheaves andadapted to mesh with said spur gears when said operating shafts are raised to said horizontal sections of-said supports.-

ing a horizontal bottom section, said hori-v zontal bottom section comprising a hinged drop door, an operating shaft carried by the underframe ofthe car and serving to support the free edge of the door when in closed position, a power shaft, a flexible connection between said power shaft and operating shaft, and means for displacing the operating shaft from its door supporting position vto permit the shaft to drop.

14. A car of the class described having a horizontal bottoni section comprising a hinged: drop door, a shaft carried by the underframe ofthe car and serving to take the direct vertical thrust of the load on the door when the door is closed and to transmitthe load to the load carrying members of the car, an actuating device for said shaft, the actuating device including a flexible shaft raising element, and a gear mechanism to displace the shaft from its door supporting position.

15. A car of the class described having sloping ends and a central horizontal floor section, a hinged dump .door in said central section, a shaft beneath said door and serving to transmit the load on the door when closed vertically tothe load carrying members of the car, a power shaft extending transversely of the car above said rstnamed shaft, and a winding cable power transmitting connection between said shafts. 16. A car of the class described having a central unobstructed discharge opening, doors hinged atopposite sides of said opening at points above the body of said doors, inclined tracks sloping downward from t-he central part of said opening, a bodily movable supporting shaft beneath each door and supported on said tracks', means for moving said shafts upwardly on said tracks to close said doors, and means for imparting movement to said shafts in the opposite direction to release said doors.

In testimony whereof, I have subscribed my name.

, FREDERICK SEABERG.

Witnesses: WALTER A. SCOTT, f, HENRY A. PARKS.

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