Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1035439 A
Publication typeGrant
Publication dateAug 13, 1912
Filing dateApr 11, 1911
Priority dateApr 11, 1911
Publication numberUS 1035439 A, US 1035439A, US-A-1035439, US1035439 A, US1035439A
InventorsEdward D Hillman
Original AssigneeBenjamin A Hegeman Jr
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 1035439 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)



Patented Aug'.




` APPLICATION rxmn APK. 11, 1911.

35:55:4239, Patented Aug. 13, 1912.


v/ BY -M "AUBE/VH To all fac/tom it may conce/m.

rossa-sa i nNrrE sfrA'rEs PATENT OFFICE;




llc it known that I, EDWARD D. HILLMAN, a citizen ot'thc United States, and a resident olf Mount Vernon, in thercounty of Tilleslchester and State of New York, have 4invented ccrtaiunew and useful Improvetranspbrtation cars, and it consists inthe novel features, arrangements and construction of parts hereinafter described, and particularly pointed out in the claim.

The invention pertains more particularly to metal cars having,discharge-doors at the sides thereof, said doors being hinged at `about the line of the side' sills ol the car and extending downwardly and then inwardly to meet thc lower edges ot the inner hopper sheets, Whose upper ends are secured 1 to the center framing of the car.

The car maybe provided with 'any suitable number oit'I doors vat each side thereof, but in. lthe illustration herein presented I f provide each side ofthe car with four doors,

one :for each hopper, and connect these doors at each slde of the car so that each set of doors may be operated from one main shaft actuated from the end `of the ear.l Between the adjacent ends of the hoppers I provlde spaces for the movement ot portions of the door operating mechanism, and this mechanism which 1s partly below said spaces and partly below the hoppers, comprises an auX-' iliary. operating shaft connected by a chain,

withjthe main operating shaft and with the doors by means vof suitable links piv'oted to the outer ends of specially constructed crank-trames whose inner ends are rigid with said auxiliary shaft.v The said links and vtrames control the movement of the doors, andwhen the latter are in closed position the center of the links 4is below the Patented Aug. 13,1912.

doors and door-operating mechanism embodying the invention; Fig. 2 is a vertical transverse section, on a larger scale, through a portion of the car, the section being taken between two adjoining hoppers and on the dotted line 2 2 otFig. 6; Fig. 3 is an exllarged detached view, talten from the nd otthe car, of the means provided for a tu'- atlng the operating shaft in `its moven'ien't to open and close the doors and also to lock said shaft in rigid position ;v Fig. 4,. is an enlarged transverse section through ,the

lower portion of the car, -on the dotted line 4 4 of Fig. 1; Fig. 5 is a' vertical longitudinal sectionthrough a portion of thecar, on the dotted line 5 5 ot' Fig. 1; and Fig. 6 is a horizontal section, partly broken away,

through a portion ot the car, on thedotted i by hinges 15 'at their upper ends and connected in series by an angle bar 16 at their lower edges, 17 the main opel/ating shafts, one being at each side of the center of the car, .18 'the auxiliary operatin(r shafts, 19 rigidly-mountedjcrank frames on said auxiliary shaft, and 9 0 linksconnected at their outer ends by eye-bolts 21 to the lower edges ofthe doors and at theirl innerl ends pivotmeehanisms are duplicated at each side of the center of the car, and the main operating shaft 17 for one set of doors, say the. set

9o I ally secured betweenthe sides of said crank yframes 19. T'he doors4 and door'operating shown in Fig. 1, extends' to the right` hand l end of the car, looking at Fig.v 1, while4 the loperating shaft 17 for the doors on the other side of the car extends to the other or .left hand end of the car in convenient posi- 'tion for operation from the end of the car.

The main operating shaft 17 Vand auxily iarv operating shaft 1'8, are, aty each side of the car, connected by a sprocket chain 22, through whlch power 1s communicated from lthe shaft 17to the shaft 18, andthis power is transmitted from the shaft 18 through the crank trames 19 andglinks 2O to thedoors l4. At one end of th ar one shaft 17 'and at the other end of c ar the other shaft I7 is provided' with an operating lever 23 of known 'character and shown in detail in Fig. v3for actuatingthe shaft. The lever 23'is equipped'with a locking dog 21 to coact 5 with a locking wheel 25, adjacent to which a vratchet wheel 26 is provided on the shaft, `and 1t receives or cooperates with a pawl 27 fastened on thefend of the c ar. The ratchet wilco-1.26 and pawl 27 serve to prevent re i,"itatiorrof the operating shaft 17 dur'- hev opening of the doors,-.and said pawl e disconnected from said wheel when rse rotation of the said shaft vis desired. operating mechanism shown in Fig. 3 isv not of unusual lcharacter and may, of

ourse,"be varied if desired.

. :Inthe drawings I illustrate a ,car having "fourhoppers 12 at eachside )of its longi- -tudinal center,l and four doors "14 at each v sideof` the `carfor said hoppers, the doors andhoppers all Ibeing alike and-'said hopp'ers being separated at their adjoining'ends by cross-section, the sections of the shaft 18 attheir` adjoining ends at the spaces 28 en tering sockets 30 f ormedin tubular members 31 of the crank frame 19, as clearly illus-A 40.trated in Fig. Y The sections comprising theauxiliary shaft 18 all have simultaneous f operation and are in line with one another 'and connected together at their adjoining ends bythe interposed crank frames 19, and hence I have referred to the shaft as an auxiliary operating-shaft without separately l designating the sections thereof. The shaft .18 carries a sprocket wheel 32 for lthe chain 22, hereinbefore mentioned. 5o The crank frame 19'comprises two side members 33 connected at their lower edgesl by a bottom or back 311'and having projecting-'laterally from the outer sides of their front ends the tubular members 31, which 'F55 are mounted in bearings 35 formed in castings 36 riveted to the ends of the hoppers 12. j The crank frames 19 are intended to turn through substantially the arc of a half-circle" or from'their initial 'position shown in Fig.

i '2, in the closed position of the doors,fto a position at which saidframes will project outwardly from the .auxiliary 'shaft' 1-8 instead of inwardly therefrom said crank frame when extended eutwaidly'in the open position ofthe doors being caught upon a -turning through the line of say three-fo-urths-of a vbetween the sides 33 of t ythe'crank frames 19 may sides 33 omitted, asl I illustrate at the upper rest 37 (Figs. 2 and 6), which is simply a bar extended across eachspace 28 and ,ffa s:1 l tened to the bottoms ofthe hoppers, saidbars serving as saddles or rests to receive the crank frames 19 in the open position of 70 the doors and prevent said frames from;

unduly downwardly or going circle. l/Vhen the crank franie 19'*"i s inv its initial positionshown in Fig: 2-,fitsi and back34 coperate to 'retain 4saidg'frame in the substantially horizontal position shown.A

The links 2 0 arepivotally secured at their` inner ends 'between the sides 33 'of the crank. 80 frame 19, andat'their outer ends are pivotally secured to the eye-bolts 21 which are j secu-red in line withv the lower edges of the ddrsM andv to the angle bar 16'which connects the doors at their lower edges, 'said 85 eye-bolts being disposed in transverse line with :the spaces 28 between' the hoppers, as clearly illust-rated in Fig. 6; The outer 4ends of the links 20 are forked to straddle the eyesof the eye-bolts'21 ,'f and said links 90 are lin the form of flat b as standing' on edge e cralilframes 19. In the initial position of' th'ef'crankframes and linksthe lower edges of the' rlinks bear upon the backs 34 of said .fra1'nes, and the 95 vcenter line of the links is slightly below the center of the auxiliary shaft 18, said links in closing the doors moving to the position sho-wn in Fig. 2 below the'center of'the'shaft 18, so as'l to become locked in position and 10o aid in locking the doors in their closed position, the weight of the doors and the load against them whnthe links 2O and crank frame.y .t9 .are in this position, shown in Fig. 2, acti-tigrisa 'strain to pull the inner-end of the links and crank'frames downwardlylinstead of upwardly/ 7 At the xouter' en/d of each end hopper 12 have one of the portion of Fig. 6, butl in all instances in which the crank frame -is ata space 28 be tween adjacent ends'of two hoppers, said frame will have two corresponding sides 33 with tubular bearings 31 extending laterally therefrom `.to receive adjacent ends of the sections of the,` shaft 18.

ln 'the employment of my invention, the

frames 19 and lin/ks? 20 extend inwardly on about horizontall .'nes, as shownin Figs. 2 120 and 4, when thdoors 14 are in their .closed position. l/Vhi is desired to open a set of the doors thef'fs'haft 17 therefor will, by means of the'lever 23, be given as utficient rotary movement to impart. therefrom through the chain 22 and shaft 18, the upward movement of the inner ends-of the crank frames 19, from the position of said f frames shown in Figs. 2 and 4 through the lineof about a half circle or untilsaid crank."130


contents from the car.

frames are projected vin the opposite direction or outwardly and come to rest upon the stops 37. This upward and outward movementof the crank frames 19 results in the inner ends of the links 20 being carried up- Wardly and outwardly and in the outer ends of saidI links, through the eye-bolts 2l and angle bar 16, driving the doors 14 out- Wardly to their open position and holding said doors open during the discharge of the After the load has left the car the operator Will reverse the actionv of the lever 33 and operating shaft 17 and through the chain 22 and shaft 18 turn the crank frames 19 upwardly and in- Wardly and thereby restore them and the links 20 to their init-ial position, said links during this movement drawing the doors 14 to their closed position. The shafts 17 and their connections to their respective doors are independent of one another, and hence each shaft 17 will be independently operated from a lever 23 or other suitable means.

. My invention presents extremely durable and easily applied and efficient means for opening` and closing the doors 14, and in the general design, disposition and construction o f the door operating mechanisms, I have aimed to eliminate complications of parts and difiiculties in applying door operating mechanisms to cars and to secure maximum etliciency and convenience of operation. For illustration, the operating shafts 17 are at opposite sides of the longitudinal center framing of the car and adjacent to the upper portions of the inner hopper sheets 13 and are thus at a proper height to extend horizontally to the end of the car and still leave adequate 'clear space for the brake-mechanism and draft-gear; the links 20 are' all straight links as distinguished from bent links and in the closed position of the doors 14C have a substantially straight-line pull below the center-line o-f the auxiliary shafts 18 against the eye-bolts 21 and at about the lowest point of the doors; the auxiliary shafts 1S are in independent sections any one of which may be replaced by a new section without the loss of an entire shaft; the

angle-bar 16 connecting the doors at their lower edges strengthens the doors and aids in affording a very durable bearing for the eye-bolts 21, and the chains 22 are endless sprocket chains arranged parallel with the inner hopper sheets and mounted on sprocket wheels and avoidthe results which would ensue from the stretch or slippage of ordinary chains fastened at one end to one sheave and at the other end to another sheave or part.

What I claim as my invent-ion and desire to secure by Letters Patent, is:

' A car having at each side of its longitudinal center line a series of hoppgrs separated at their ends from each other by Spaces and.

having downwardly and outwardly inclined inner sheets, doors hinged at their upper ends at the sides of the car for closing said hoppers and inclined inwardly at their lower portions to meet the'lower edges of said sheets, longitudinal main' operating shafts at opposite sides of the longitudinal center framing of the car and'close below theupper portions of said inner sheets, auxiliary operating shafts adjacent to the lower ends of said sheets, sprocket wheels on said main and auxiliary shafts, sprocket .chains on said sprocket wheels, means for manually operating said main shafts, crankframes on said auxiliary shafts at said spaces and' in the closed position of said doors projecting inwardly, and links pivot-- ally connected at their inner ends withy the inner ends of said crank-frames and at their outer ends with said doors at the lower portions thereof, said crank-frames being castings comprising sides, a back connecting the same, laterally projected trunnions held by bearings secured to said sheets and having end sockets, and said auxiliary shafts being in line sections whose ends are in said sockets.

Signed at New York city, in the county of New York and State of New York, this 10th day of April A. D. 1911.-.'v

EDlVARD D. HILLMAN. Vitnesses.: CnAs. C. GiLL,


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3110270 *Dec 9, 1957Nov 12, 1963Unitcast CorpDischarge gate operating assembly
US4138948 *Apr 27, 1977Feb 13, 1979Pullman IncorporatedRailway hopper car side door actuating mechanism
U.S. Classification105/255, 105/299, 105/313, 105/312
Cooperative ClassificationB61D7/26