USRE12596E - Dump-car - Google Patents

Description

No. 12,596. RBISSUED JANrl', 1907.

G. B. MALTBY.

DUMP GAR.

` APPLIGATIN FILED N07; 7, 1906.

2 SHEETS-SHEET 1x SMM No. 12,596.' REIssUBD JAN. 15, 1907. G. B. MALTBY. DUMP GAR.

-APPLICATION FILED 11011.?, 1906.

2 SHEETS-SHEET 2.

AIo

' provide a sim and at each 'car wit the parts in open or GEORGE B. MALTBY, OF CLEVELAND OHIO, ASSIGNOR', BY

ASSIGNMENTS, TO NATIONAL DUMP CAR COMPANY, A CORPO- RATION OF MAINE.

Specincation of Ressued Letters Patent.

DUMP-OAR.

Reissued Jan. 15, 1907.

Griginal No. 739,894, dated September 29, 1903. Application for reissue filed November 7 1906. Serial No. 342.435.

To a/Z whom it may concern: y

Beit known that I, GnonenB. Mauren a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, (formerly of Chicago, Cook county, Illinois,) have invented certain new and useful Improvements in Dump-Cars, of whichv the following is a specification.

The invention relates to that class of freight-cars which are adapted to the carryingof loose bulky freight-such as broken i stone, ballast, and the like-and particularly to the arrangement of the car by which the load may be self-discharged, all of which will more fully hereinafter apfpear. I

The principal object'o the invention is to le, economical, and efficient dum -car wit means by which the loose freig t therein may be discharged through the bottom and side thereof.

Other objects will appear from an examination of the drawings and the following descri tion and claims. f

-T e invention consists principally in a dump-car in which there are combined a supporting-frame portion, a drop-bottom therefor formed of swinging doors pivoted at their inner edges to thesupportingfframe portion side of its longitudinal center, and swinging ortions attached to the outer free edges of t e drop-bottom doors. The invention consists, further and finally, in the features, combinations, and details of arrangement hereinafter described and claimed.

In the accom anying drawings, Figure l is a cross-sectiona elevation of a car as it appears when constructed in accordance with these improvements, showing the parts 1n closed osition; Fig. 2, asimilar view of the dumping position; Fig. 3, a similar .view of the car and arts as shown in Fig. 1, with a modifiedorm of chain attachments; and Fig. 4., a,

similar view of the car as shown in Fig. with the parts in. dumping position. In the art to which this invention relates it is Well known that it is highly desirable to have a car that k will permit the freight therein, such as ballast or coal, to be discharged t o each side of the track, and, further, that it 1s uite desirable tollave the partsso arranged lihat this side discharge may also take place from above V,and to each side of the carytinuation on cipally designed.

In illustrating and describing these im-` t rovements I have only illustrated and will y ere describe that which I consider to be new, taken'in connection with :so much as is old f as will properly disclose the invention to others and enable those skilled in the art vto practice the same, leaving out of consideration other and wellknown elements which if set forth herein would only tend to confusion, proliXity, and ambiguity.

In constructing a oarv in accordance with these improvements I provide a supportingframework of the desiredsize, construction, and arrangement to maintain the different parts in position and which preferably has a plurality of center sills a and cross-sills or deck-beams b. Attached to and.. supported by the underframe of the car and `extending upwardly therefrom is a pair of side boards c and end boards d, having the -usual side stakes e and end stakes To assist in discharging the load to each side of the car-tracks, I provide a drop-bottoni portion formed of a-plurality of swinging doors g, pivotally secured to the underframingof the car at their inner edges and to each side'of the longitudinal center and eX- tending outwardly therefrom. ing-doors are provided with swinging end portions h, which are so constructed and arranged that when the parts are closed-that is, in one position-they form a part of the side boards of the car andassist in retaining the load in place, and when the parts are open or in a lsecond position they form a conextension of the drop-bottom portion, so as to facilitate the discharge of' the load to each side of the track, or, in other words, to throw it out from the body of the car. This particular arrangement is very advantageous in that it permitsv of the use of These dumptrucks. To this end this invention is prina wider central fixed portion, Vso that the hinging of the swinging doors need not take lace so near the centerof the car, as is usual,

ut' may be `a considerable distance there.`

from'. Again, this particular arrangement is roo advantageous when the swinging doors,

ieg

framework and in line with they longitudinal center thereof is an apex por tion i, which is# sists in disohargingthe'load when theparts are in their open position. To `close the doors which iornithe drop-bottom, rockshafts or shafts c..a. re jprovided, "rotatably mounted in bearings on the side frame of the csr and provided With a, multiplicity lof chains l, adapted to be Wound therearound and one end oi whichmav be secured to the -i'oldable end sections of the "doors, as tshown psrticulerljT in Fig. 2. "'Thefettachmentfof these chains to the foldeble ,end section-of' the doors'isbytneans oir-a hinge m, which; is secured to both the mein boiiyportionfo'tlre dropr-bottornf doors and the '.iol'de'bleffendsl thereof', so that .es the rchainis Wound` round the `rook-shaft (see Fig.l ...1) the doors were brought up into position fendthefioldble end sections thereof intopo'sitiom'ns shown'. -The side frame ofthe- `car or the fixed portion thereof is Aprovided lwith'asti'.erps in, Inlnet-rextend down toapoint slightlyzbelow Asuch fixed ysection sind against whichrthe free iendds of the foldeble endfsectfions .offthe droplebottom doors may'rest. .Theselstmps therefore -essist in partially emibiing `sue'hseotionsz'to withstand :the outward-stressftoswhichfther are exposed When-carryingwleoseifreight.

.In Figs. 3 `and ZL12-'lieve shownne modie'd means of :raising fthe .fdomis which form the drop-bottoni portion l.into closed `zposition, consisting of Hock-Shafts fic, "es .above described, provided `with "chain mymechanism l,

lhavingtwo. portionsy A and @attached-thereto and to the main bo f :portion offthe-swn'ging doors and 'fol'debie-l endeportionsthereo, as shown'particularlyrinFig. 4. Whentthe roolesheft is beingfrotetedin onefdireetion, so as' to wind' theI chainthereasround and es the 'parts 'reach their closed `position, the part q of= the cheinstrikes aidownwerdlysextending arm r on fthel inside fof lthe -side boards, which assists ffthe "chain: in' throwing 'the foldable end sectionfoff'the doorintol closed position, so assto formaespert .(the lower) of the side boardsffthe-car. jIn other 'res ectsthe carer portions thereof shown in igs. 3 endif). .aire-'substantially identical withf the parts shown and described in connectionv with Figs. 1. fendi.

1. Ina cer of the c1ass'described,ithe oombination otsJ supporting-frame portion, ra. drop-bottom "therefor fformed of fswinging doors pivotally secured thereto atf their in- .ner edges and at each side of the longitudinal center, andzfoldable end portions on the free senisniseeured to such foldable portions of the drop-bottom doors to `bringt-he sam-efto miosedfposition,l substantially as described. f

3. =In -a'dump-car of.thel class described, the combination'of afsup ortingli'rarnework, 11ednoprbotoomportiont erefor formed of a plurality of swinging doors pivotally secured :theretoveat their inner edges, foldable sections `gpivota1ly--seeiured :to the outer free edgesI of 1-the "drop-bottom doors 'and .forming a.- diseehargingl-apron inzc'onnection therewith when ,the parts erejn' open sition--and5 the lower pert zofthe'esideboar. s ofi the ear-when'the iparts-.fareA in their closed position, :rook-shaft imechainismirotatably.mounted in the frame! Work of `V.the r oar, and chain lmeohenisin secured to such rook-shaft mechanismfandlto i the dropbottom' doors fand. foldable Asections y thereof-to.' bring the; pertsi tov closedl position,

substantielly as described.

f4. Iman-ossei the class described,| the-com- '.bination ff ha supporting-frame portion, a. l'drop-bottorn therefor iformed yoi swinging ffcloors':piviotallyfsecuredithereto attheir irl- .'.nersedgesfsmid'etl ea'eh side of the Vlongitudinal -ncenter; alidi'foldeb'le fendi port-ions on :the free l"edgesfofithe=dropfbotto1nf doors adapted .to form a part'of .the discharging-apron when in fopen@ osition.

V5. ne. 'csr of the class described, the, combination of :fa supporting-freine l-portion, a drop-bottom therefor formed of swinging doorsypivotally'seeured thereto .atitheir innerr edgesiand at esich sid-e. ofthe longitudinal' r center, i and vend {portions hinged to thev free edges of time doors to-swing into alinement with tti-ie doors' when the doors areA in discharging position. `GEORGE B. MALTBY.

*Witnesses B. WAoeoNER, 'SBILEQ n IOS

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