US1140842A

US1140842A - Metal car-roof.

Info

Publication number: US1140842A
Application number: US72495312A
Authority: US
Inventors: Clinton C Murphy
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-10-10
Filing date: 1912-10-10
Publication date: 1915-05-25
Anticipated expiration: 1932-05-25

Description

METAL CAR www Hummm:

HLED OCT.

IIIIIIIVHNIHIh 3 SHEETS-SHEET Z- n f i /Wml www a sectional View on line l-l of Fig.

Application iile etober lf3,

.To @ZZ 107mm t m ng/ concern:

Be it known that @tiraron C. Mnnrrri, a citizen of the 'United States, r siding at Chicago, in the County oit Cool; and State or llinois, have inif'ented Certain nerry l useful -llinproveinents in Metal Cer-Rooie, of which the following is a speeitioation.

My invention relates to the construction of railway cars,.ind particularly tlie roofs of railway box or house ears.

The invention consists in certain novel and improved constructions, arrangements and devices whereby a, roeil is provided which is Very strong, light, durable, nf'aterproof, inexpensive to build, Wbieh will eifectively brace the ear structure the stresses to which it is siibieeted i serr-- ice and particularly against these stresses which tend to canse the ear to n'eare.

IThe inver-tion, furthermore, provides a novel roof construction for railway ears composed entirely, or very largely, or" metal. and consisting, to a large extent, or. Common and simple structural elements which een either be purchased in the open market or reedily mede :troni stock so obtainable and which, furthermore, can be assembled with convenience and relatively small expense.

The invention consists further in the several novel constructions, arrangements and devices, taken singlyand in eombination, relating to ear roof structuresshoivn in the drawings annexed hereto and which will be hereinafter described and claimed.

The invention is illustrated, in apreiierred embodiment, in the accompanying drawings wherein- Figure l is a plan View of one of a railway box ear, the root" sheets, earline caps and running boards being reinoved at the right hand side of the ligure in order to show the structures underneath tirera; 2, a side elevation of the shown in Fig. 1; Fig. 3, a cross sectional View, on an enlarged scale, taken on line 3--3 of Fi l, looking in the direction of arrows; Fig. 4,

3. looking in the direction of the arrows; Fig. 5, an enlarged sectional View taken on' line 5 5 of Fig, Q, looking in the direction ot the arrows; Fig. 6, an end elevation of the earline cap and neighboring structures; Fig. 7, a fragmentary View, in perspective, of one of the roof sheets; Fifih S, a similar View et one o, the earline caps, and t.,

tional plan of l r 'web et one o'i in enel tension rods ere Wi @il Lilie Characters et reference designate like 1parts in the several figures of the drawings. Referringto the drawings, 25 designates the earlines, each or 'Whieli consists of channel member open at the top and formed 'preferably with the depending Wee The latter is preferably shoi te n the rest et the oai-line and proieet' ends the ear-line upon tlie side 'nl `tes 2? best secured to the -`e flanges 2 ant E) u Wa strnetnre or the csr oy nol'ts 29 Winch pass through the side plates 2'?.

The ridge pole, or elementrlbieli most neariiy corresponds to the ridge pele o??? toe ear roof, Consists preferabl.T of 'tension niersber or rod 30 which preferably ends frein end to of the eer passing through openings in 'the Webs 26 of the several earlines and is anchored to the opposite ends of the ear in the in enner indicated at the left hand side'ot7 Fig. l.

Surrounding the tension member 30 are the spacing sleeves 3l ivliieh intervene between the depending franges :26 oI4 ne ear- 'lines and ere Compressed when the ridge pole nieniber 30 is :ont under tension.

'Preferably the roof structure is further' reinoreed and strengthened means of a number of diagonally arranged tenjon rods 82 which connect the severa eerlines together. ln the preferred erran enrent Whit-h is best shown in Fig. l, a pair of these rods extend from points near the mid die of eaeh earline to the ends of the earlines adjacent thereto.y the rods passing through nertorntions in the Webs 936 end through the obliquely faced Washers 53 and tir?? being provided with nuts 8l (Fig: il).

t will be seen that the structure as eboi'e described will be very strong and at the same time light. lt is very 'Well Calculated to prevent the ear from being,v raelrednnd e the parts thereof loosened by the stresses ooinnioiiljyY known as Weaving stresses to which railway box cars are'snbieeted when throughout is a tension structure'.

-in service. rl`he tendency' ol' box cars to roof is transmitted to the whole structure.

For 'this reason the roof of my invention is particularly well calculated to withstand the constant vibrations to which all the partsof a railway car are sub]ected when 1n use. Them the part-s of the ordinary 'car root have become a little loose the loosene'ss in-` creases very rapidly due to the vibration toY which the car is subjected, with the result thatithe car soon becomes racked and out of 4shape so that it is impossible to effectively" rep formed on its transverse edges with the in- VertedULShaped flanges 36 (Fig. 7) which l extend over the upstanding webs 37 of the carlines. The engagement of the roof sheets with the .carlines isV preferably a loose engagement as. shown'so that some play is permittedatthese places which will prevent the rupture of the roof sheets in the event the car weaves. Spnie weaving is inevitable no matter how strong and rigid the roof structure may be.-

The carlines, and the overlapping edges of the 'roof sheets. are covered by carline caps 38 (Fig. 8) which are preferably sheet metal channe'lmembers provided with end 1 pieces 39 overlapping the side fascia plates 40 of the car. The caps are held in place by bolts 41, vor otherrsuitable fasteningde- Vices, which p ass through the fascia plates lO and the sici sheathing of the car 42, The end pieces 39 of the caps overlap the edges of flanges 43 on the ends of theroof sheets. This holds the roof sheets in Lesition but without preventing them from shifting'a trifle, the roof is strained so as to require it. The end pieces 39 are formed with openings at the level'of the bottom of thek ,channeled portions of the carhnes, the prrpose of these openings being to allow the escape of any water which may work in through the channels. The openings are preferably made by slitting or punchingl the l ends of the cap and. bending the intervening metal out so as to form lips 44 which serve to prevent rain, dust, 'and the like, fromentering the openings. The running board 45 is supported on the saddles -l'G preferably made of wood-.which fit over the carlines and are secured thereto by T bolts LT (Fig. 4), the transverse;members of which extend through and are secured to the upstanding webs 37 of the-earlines. The roof sheetsfare formed at their inner edges with the notches 48 so that they may beplaced in position after the T bolts have been secured to the carlines.

-It will be seen that this arrangei'nent of cai-lines and roof sheets gives a roof which is at once light, simple, waterproof and, Lo al certain extent, flexible. edges of the roof sheets .up over the upstanding webs 37 of the carlines and covering the cai-lines with the caps 3S the connection between the roof sheets and cai-lines is perfectly water-proof. If any water should .-worlr in between the roof sheet-s and the cap it will be drained out through the openings '44; p u

L l/Vhile I have described my invention in certain-preferred embodiments, itfWil-l be understood that some modification might-be made in the form, construction and arrangement of the parts without departure from the intention. Therefore I do not wish to f'Betweeneach carline is a roof sheet 35 be understood as limiting the invention to the exact particulars shown and described.

I claim:

l. In a roof structure for railway cars, the combination with a plurality of carlines, of a plurality of diagonally arranged tension members connecting said carlines one with another, and a tension member runningl longitudinally of the car along the the car along the .center line of the roofstructure, and spacing `sleeves on said tension member arranged between said carlines.

3. In a roof structure for railway cars, the combination with a plurality of carlines, of a plurality of diagonally arrangedtension members connecting the ends of each cai-line with the middle of the next adjacentcarline, la tension member running longitudinally of the roof structure from end to end of the car, and compression members arranged between. the carlines.

4'. In a roof structure for railway cars, the combination with a plurality of metal .earlines formed with depending webs, diagonally arranged tension rods connecting the By bending the .i

webs of said carlines, a tension member eX- tending from end to end of the 'car along the center line of the ear and through said.

webs` and spacing mem-ber.' l

5. VIn a roof structure for railway cars, the combination with a' plurality of carlines consisting of channeled members open at sleeves on said tension thelto-p, of roof sheets, vthe edges of which formed with notches, for the purpose deare bent so as to extend into the channes scribed.

of said carlines, running board saddles arranged to 'stand overthe cernes, and T bolts secured to the upright Webs of the channels of the earlines and through said saddles, the edges of the roof sheets-being CL NTON C. MURPHY.

l I Witnesses o L. A. FALKENBERG, G. SKTNNER.