US930434A - Car-door-operating mechanism. - Google Patents

Description

J. F. 'STREIR OAR DOOR OPERATING MBOHMIISM.v

APPLICATION FILED 00T. 5, 1906.

Patented Aug. 10, 1909.

3 SHEETS-SHEET 1.

ug. 10, 1909. 3 SHEETS-'SHEET 2.

(www

' Patented A J. r. STREIVB. GAR DOOR OPERATING MBGHANISM. l APPLIoATIoN FILED oo'r. s, i906. 930,434. 4

!.L i I f I l I l l l I l I l l I l l l l I I l l I I Y fr .i1-I5: .r

wn'nlssls J. PQ'STREIB. CAR DOR OPERATING MECHANISIMI. APPLIUATION FILED oo'r. 5,4906.

Patented Aug; 1o, 1909.

Y INVENTOR Q1@ @wwzfglqm gli @im 3 SHEETS-SHEET 3.

wn-NEssEs K l Ww/@mm UMTED STA-ressem- OFFIQE.:

F. sTREiB, or AvALoN, PENNSYLVANIA, -AssieNoR To PREs'sEDs'iEL CAR coMPANY, I i or BITTSBURG, PENNSYLVANIA; A-coRPoRArIoN or New JERSEY.

l No. ossofise.4

' 'CAR-nooR-OPERATING MEcHANisi/i.

VSpecification of Letters Patent.' PatentedAuga y.10, 1909.

Application aieaf october s, 19,06. serial N. 335,529.

To all ivhom 'it may concern: y l,

Be 1t known vhat I, JOHN F.- STREIB, of Avalon, L Allegheny., county,l 3 Pennsylvania, have invented anew 'and' useful Can-DoorL Qperating Mechanism, of which the following 1s a full, clear, and exact description, 'referencebeing had to the accompanying drawings, forming part of. this specification, in' .which-1 Y Figure l is a transverse sectional view of a portion of a car showing, my invention apy plied thereto; Fig.' 2 is an. end view 'of the ycar l showing onearrangement of o erating mechanism for the creeping shaft; ig., 3 is a side view of a portion of the car' and Fig. 4 is 'a sectionalll elevation, artly broken away, .showingthedetails of) the invention as ap- 'plied tothe car.

My invention ating mechanism, and l'is more particularly4 applicable to flat bottom cars having a series downwardly opening doors.

' The object of myinvention 1s to provide doo'i` operating mechanism of this character which will dispense with the use ofthe chains 'ordinarilyem loyed for opening and closing,

the doors, an 'which will substitute therefor an operating shaftwhioh is movable'bodily underneath the doors Aand which carriesv a series of arms which su port the doors inl their closed positions an duringi'th'e opera.

i tion of opemn and closing thesame.

A further o ject is to rovide mechanism of this character which s all be simple and'- positive yin its operation, and which can be4 readily applied to cars of various types.

With t ese objects in view my invention consists in the novel construction, combinaf out inthe appended claims.

tion and arrangement of parts, all substantially as hereinafter described and pointed In the accompanying drawings, the'numeral 2 designates the side of the car, 3 the center sill and 4 one of a series of downwardly-opening doors which are 4hinged at 5 to the center sill'3. i

6 designates deep,hollow, transverse members or diaphragms which in connection with the center and end sill form the under-framing of the car.

7 designates the door-oplerating shaft which is arranged to control e o eration of four of these shafts, two at each *end portion ol' the car, extending from the center of the .teeth are arranged' to en age the teeth of has relation to car door opere 'plates 6 of the cross-bearer. Each shaft car f* vries a series of upwardly-'extending arms. 11, which,l when the ldoors are in closed positions ,car to the ends' thereof, as shown in 3, Vand one shaft beingarranged at 'each side of the car.

Each' shaft extends throughelongated.

slots 8 which are formed in the diaphra m or.

transoins', said slots having the form s lown 'inFig 1', being downwardly inclinedfor 'the ymajor portion of v'their lengthswith ashort horizontally-eXtending portion .8a at. the upper end. Eachjshaft 7 isgprovided with flanged Wheels oranti-friction rollers 7 a on vwhich'it'travels through slots 8. Each shaft 7 carries at its inner end portion and also at its intermediate portion a pinion 9 whose..

racks 10 vwhich arefiigid-y securedto 'the l diaphragme or transoms 6. These vracks lare carried by.bracketsf10, which together with the i-nionsv 9, are arranged "and inclosed within` the hollow transverse members or dia hragms. The shafts 7 are carried on rol ers 7 which travel in the vslots 8 in said transverse members or'diaphragins. Racks 10 are inverted .so that` their teeth project, A 4 80 downwardly obviating the tendency of the. teethl to become cloggedwith dust, dirt,- lading, or other foreignmatter. This arrangement oftlie rack is superior also because there is more room above the elongated slots 8 vvfor the location' of said rack than'beby other parts. Rack l10 in this' position tending between, the two diaphragmeor engage wear plates-1.2 on the under sides of doors inthe manner shown 'in-Fig. 1. Two of these arms are preferably provided for each door. i

- Each of thearm'sis edge l11a which is adapted to slide on the under sides of the doors when the latter are opened or closed in the manner hereinafter 100 more fully described. l y

Any suitablemeans, such as a crank or lever, may be employed for rotating the shaft 7 I have, however, illustrated lever and ratchet means for this purpose.l which 105 form the subject matter ofthe copending application of Charles A. Lindstrom and myself, Serial No. 337,530, filedOctober 5, 1906, Patent NTO.y 847,956, dated March 19,

1907. This mechanism consists of a gear '110 neathit where the space'is taken up largely formed with a convex wheel '13 secured tothe outerend portion of l ythe shaft 7 and which is engaged bythe teeth of a pinion lamounted on a stub shaft 15. The pinion 14 is actuated by means of a ratchet wheel-16 on the shaft 15 engaged by a pawl 17 pivoted to a lever 18 lwhich is fulcrumed on the end of the stub shaft 15. This lever 18 isnormally held in the position shown in Fig. 2 by means of a latch device 19. The end portion of the shaft 7 together with the stub shaft 15 are arranged to slide lin' a slot 20 in a bracket 21,

the slot 20 being of corres ending form to` the slots in the racks 10 an diaphragm 6.

lTo open the doors, the lever 1-8 is disengaged from thelatch 19 and is moved upwardly through the'arc of a circle., and then moved toward the latch' 19 thereby rotating the pinion 14 and the gear wheel 13.' This causes theshaft7 to rotate carrying the cam arm 11 toward the free edge ofthe door i and away from the shoe 12 and causing the shaft 7 to move downwardly in the slots to the position shown in dotted lines in Fig. 1, the pinions 9 working in the racks 10. At the commencement of this movement the rounded upper edges of the cani arms 11 slide on the shoes 12 until the arms 11 point substantially at the free edges of the doors after which, the arms and the doors traveling in the same direction about their respective mechanism of this character, instead of aK axes, a relative lrolling movement between the doors and larms takes place andthe latter are gradually lowered to the dotted position shown in Fig. 1, further movement of the actuating lever throws the arms 11 into the dotted position shown in said figure. The rack 10, the slot 8 and the shaft 7 with its pinion 9 are so arranged that when the doors are in their closed position the arms 11 are supporting the doors near the free edges. One advantage ol" the use ot a cam arm. in a roller or disk, is that a much, greater drop tothe door 1s permitted as the arm moves out of the Way of the doors descent and upwardly in the slots.

22 designates a' paWl which is loosely sleeved on the end of the shaft 7 and which is designed to engage any-one of a series ol teeth 23 on the bracket 21 for the purpose of preventing the door operating shal't from sliptoward its closed position, and also lor holding the doors in part tally closed positions.

As above'y stated, lthe particular means "herein shown for actuating the shaft' forms no partl of the present invention, and any suitable actuating means may be employed.

The mechanism described forms simple and positive means for effecting the opening and closing of the doors, whereby chains and other objectionable connections whichare in the path of the discharge of the lading, and which are likely to become broken, are dispensed with. y A

Various `changes may be made in the details of ,construction and varrangement of parts Without departing from the spirit and scope of my invention, since v l'V hat I claim isal1. In a dump car, a drop door, a movable shaft for opening or closing said door, means limiting the movement of said shalt in the door-closing direction and means between the door and shaft, when the door is closed, tending .to force said shaft toward said limiting means. 'n

2. In a dump car, a drop door, a rotatable shaft, means for allowing a limited rotation of said shaft, and door-engaging means `rigidly mounted on said shaft in a nosition,

when the door is closed, to exert a everagc opposed to said limiting means.

In a dump car, a drop door, a shaft movable bodily through rotation to operati,

said door, means allowing a limited rotationof said shaft in one direction, and a doorengaging member rigidly mounted on said shaft in a position, when the door is closed, to exert on ,saidshal't a leverage opposed to sa id limiting means.

4.. ln a dump car, a drop door, a movable shaft for opening or closing said door, means limiting the movement of said shaft in the door-closing direction and meansbetween the door and shaft, when the door is closed, adapted to exert a leverage `on said shalt opposed to said limiting means to prevent rotation ofsaid shaft and thus produce a lock.

5. In a dumpcar, a drop door,`a movable shaft for openingor closing said door, means on one side of the vertical center oi said shai't for limiting thp movement ol' said shaft in the door-closing direction, and means between the door and the shaft, when the door is closed, movable to a position beyond the vertical center ol' said shaft tot he side ol said shalt opposite the location ol' said limiting means to exert a leverage on said shaft opposed to said limitingl means an l thereb),` formaloclr.

o. ln a. car door operating mechanism, a bodily traveling shattand a sui-table guideway tor said shaft formed in the car under- `tramo in combination with a toothed rack ping back while the same 1s being moved;

loca-ted nhove said shai't, a toothed rack ltwated below said shaft, a gear carried by said shalt 1n mesh with said upper rach and a.

lll(

loosely mounted pawl camtled -by said shaft for engagement 'with said lower/rack.'

7 'lhe combination with a car u derframe having deep, hollow transverse In mbers or diaphragms, a door-operating shaft extend-` ing below a series-of the doors tobe operated and movable transversely and downwardly beneath the saine, slots in the said members or diaphragms, pinions onV the shaft, and racks engaged by the pinions, said racks and Einions being inclose-d Within the said m'emers or diaphragms; 'substantially nas described.

series of downwardly and inwardly opening doors, and an underframe vhaving deep, hollow transverse members between which the doors are hinged, and which are formed with inclined slots in their side walls, of a door-operating shaft mounted underneath each set of doors to move in said slots, racks .secured tothe underframe ad'acent to some of the slots, pinions on the s afts engaging the racks, said racks and -pinions being inclosed by the transverse members, doorengaging arms on the shaft, and 4means for actuating the shaft; substantially as described.

' 9. Ina dump carha drop door, a rotatable shaft and a cam arm on said shaft movable toward the free edge of said door to olpen same and in the opposite direction to c ose sa1ne. S. The combination with a car having a In testimony whereof, I have hereimto set niy hand.

' JOHN'F.- STREIB.

lWitnesses K. L. ROBINSON,

Il. B. FISHER.

Images