US1792252A - Railway-car-roof structure - Google Patents

Description

Feb. 10, 1931. A. E. SMALL RAILWAY CAR ROOF STRUCTURE Filed April .19 1926 Fig. 2

Zzven for Hrffi ur E. 5m a]! Patented Feb. 10, 1931 f1 Z H TATES (pm;

"hR'rnoR E. sMALn'oF OAK PA K, IL'LmoIs,*AssIG oR BY uslin, ASSIGNMENTS,ITO"

" PJH. MURPHY COMPANY, or. nnwxninsmqron, PENNSYLVANIA, A CORPORA- is common practice to ri'IoNor' PENNSYLVANIA RAILWAY-CAR-ROF s rnocrunn. f

Application filedfApr il 19,

V The accompanying drawings illustrate the preferred form of the invention, though it is tolbe understood that the invention is not liinited to the exact 'detailsof construction shown and described as it obvious that various modifications thereof within the scope of the claims will occurto personsskilled 1n onsis ts in providing means for moving heavy cargoes in and out of the car and to desired positionswithin the'car. g V 1 V I throw a rope or chain overone of the carlines or purlin's of a boxcar .toraise the lading, but theordinary roof frame of a car is not designed to resist .the stresses imposedthereby, thus frequently causing distorted and leaky roofs.

, One of the objects of the invention is to strengthen certain carlines of the roof structure 'to enable them to resist the stresses caused by lifting the lading and to adapt them to accommodate means for removably attachingloadlifting devices to suchparts. In some cars the 'roof structure comprises carlines spanning the distance between the opposite side plates with purlins extending longitudinallv of the car and attached to the carlines which support metallic roof sheets spanning the space between the adjacent carlines. These roof sheets are sometimes secured to-the carlines making what is known as; a rigid roof ,andIsometimes positioned loosely between the carlinesmaking what is known as "a flexible roof. Sometimes the carlines" are eliminated and the. roof sheets are so'formed andperhaps strengthened that 7 they perform the functions of the nsual'carline, so the term carline as used in this patent means that structure which performs the functions of a carline whether a separate member or anintegral part .of the sheet or sheets forming the ,roofproper of the car.

' It is customary tostrengthen theroof framing of the car by providinga ipluralityof ipurlins, at spaced intervals'between the side plates which extend longitudinally of the car and are secured to the carlines, thus form ng a framework. .Such framework isparticularly desirablein flexible steel roofs where 1926. Serial N6. 102,070.

theroof sheets are spaced apart from the carlines and do -not act asgussets toresist the stresses tending todistort the roof in a horizontal plane. My invention may bemodi'fied so that it will be applicable to-anytype of freight car roof. 1 v h V v I The amount of strength whicha load-lifting device impartsto a carline (or other roof member) mayjnot be suflicient to enable the carline to sustain certain heavy loads; therefore, in some cases 1t may also be necessary to lncrease the strength of'the' carline itself (or other frame member) This may be accompllshed by making it of heavier material or by shaping the material differently. Another obJect of the invention is to provide a plurality of relatively strong and weaker carlines arranged to accommodate a plu rality of duplicate roof sheets,and, furthermore, to provide the stronger carlines with means for attaching load lifting devices without afiecting the duplicity of the roof sheets. J i I In the drawingsz v Fig. 1 shows a part of a railway car with my invention applied thereon, I

Fig. 2 is a section on line 22 of'Fig l. Fig. 3 shows how the carline is increased in depth to accommodatethe load lifting device.

Figs. 4 and 5 show therelation of the different depth carlines and the roof sheets.

Figs. 6 and 7 show a modified construction.

Fig. 8 shows the construction and device applied to a rigid type of roof.

Fig. 9 is a detail of the device.

The roof illustrated in Figs.'15, inclusive, comprises a! plurality of carlines 2 spanningthe distance between the opposite side plates I 3 having their, extremities secured thereto. 5 These carlines are of inverted-channel section with opposite side walls P4, an

-upperportion 5 and laterally extending flanges 6. The roof'sheets 7 span thedistance between thecarlinesand have their edges spaced apart from nthe'carlines so that the roof sheetsjmay move relative to each other and to the roof'framing. A cap 8 is provided to weatherrproof the space between the carline and the roof sheets. These roof sheets may extend betweenthe opposite side plates of the car or may extend from a side plate to theridge or center line of the car.

A plurality of longitudinally extending purlins 9 support the roof sheets and are supported by the. carlines. In an ordinary roof the purlins extend uninterrhptedly below the carlines and are suspendedtherefrom by belts or other means, as shown in Fig. QWIn-the carlines that areto sustain the loadlifting v e he side wa ls i d it lsd 9 P vide a deeper and, consequently, stronger car; line (as shown in Fig. 3) and the purlins are interrupted and are supported-by; the-lateral extending flanges 6 and are preferably secured thereto.

A device 10 is positioned entirely within the inverted channel and has itsoppo'site'ends secured to the opposite side walls 4 of the carline and a space 11 is; provided above'the device 10 and below'the upper portion 5 of the carline so that a load lifting device may be attached theretoby passing a rope or chain through this opening or 'pas'sing thenose of the hook throughit. The lower part of this device is provided-with oppositely disposed lateral flanges 12 toaccommodate ice tongs or othersuch load lifting device. Both the carline and the devices are positioned entirely above the lower side of the purlins Sis-o as not to interfere with the loading capacity of the car. This device also strengthens the Carlin-e by acting as a spreader because when achannel section beam beg-ins'to deflect the opposite side walls depart frorntheir vertical plane, or. in other words, the channel spreads apart or opens up, as it is called- The 'deare applied to the device.

The greater the inside height of the car the better as the height from the rail is limited by the tunnel and bridge clearances, particularly at the eavesftherefore, a roof structure must be very shallow. In order to obtain the required strength for certain loads in such a shallow carline it may be necessary to provideother reinforcements. For such necessity. I add the reinforcements 1'3 which are located entirely within the inverted channel carline for reasons already enumerated. 1 V

Fig. t shows an arrangement wherein the relatively deep. and shallow carlines arevpositioned alternately, while Fig. 5' shows a plurality of shallow carlines positioned between the deeper carlines. Figs. 6 and 7 show a construction wherein the carlines 2 are all of the same depth and width (in fact, preferably duplicates).

Qertain'of the carlines are reinforced by a separate member 20 which, however, is not of-sufiioi-ent depth to interfere with the cubil a pa t 1 the car; n etherverfilei does ,not extend below the lower surface of the 'purlins. i neniber may be secured to the carlines in sucha manner as to form' un tary be V, In the construction illus tratedthe bean or reinforcement 20 is suspendedfromthe carlines by a. plurality of straps 21. The'particular advantage of this arrangement isthat it does not interferewith the standard construction of thereof, and,

furthermore; there are no exterior rivets which carline is preferably extended to the lowersurface of the purlins.

Fig 9 shows a detail of the load lifting device 10. The load lifting device disclosed herein is disclosed and claimed in my copending application Serial 103,069 .filed April 19, 1926;

furthermore the broad feature of a car roof comprising a plurality of carlines some of whlch are relat vely strong is disclosed in claim in said copending"applicationSerial 1'AP i vl 1 Iclaimz 1.1m car'roof construction, an inverted channel carline with ts extremities secured to the opposite plates of the car, a purl n egrtend ng normally on each side of said carhne and supported thereby and secured thereto, roof sheets'supported by the pun.

line on opposite sides of thecarline, means to weatherproof the juncture betweenthe sheet and the 'carl ne, and 'a device positioned entirely within :the channel carline and secured thereto arranged to accommodate a load lifting device. v t

2. In a car roof construction, an inverted ch annel carline with itsextremities secured to the opposite side plates of the car, a purlin extendingnormally onieach side of said car-c line and supported thereby and secured thereto,roofsheets supported. by the purlins on opposite sides of the 'carli' ne, means to weatherproof the, juncture between-the sheet and they carline, and'a device positioned entirely within the channel carline' and secured there.-

to arranged to accommodate a load lifting device, both the carline and the device being entirely abovethe lowerside of the purlins. 3. In a railway car, the combination of an inverted channel carline comprising a web .:and spaced apart walls, and a device forming a strut-tie between said walls, which device also provides a place for attachment of a load lifting device. V 4. In a railway car, the combination of an inverted channel carline comprising a web and spaced apart walls, means to reinforce V the carline located within the channel of the carline, and a device forming a strut-tie between said Walls, which device also provides a place for attachmentof a load lifting device.

5. In a railway car, the combination of a V plurality of relatively deep'carlines, a plural- 2o ity of relatively shallow carlines, and purlins extending between the relatively deep carlines and below the relatively shallow carlines.

6. In a railway car, the combination of a plurality of carlines, and purlins extending between some of said carlines and below other of said carlines.

7. In a railway car, the combination of a plurality of relatively deep carlines, a plurality of relatively shallow carlines, and purlins extending between the relatively deep carlines and below the relatively shallow carlines, the said relatively deep carlines provided with means to accommodate a load lifting device.

8. In a railway car, the combination of a plurality of carlines, and purlins extending between some of said carlines and below other of said carlines, the first mentioned carlines provided with means to accommodate a load lifting device. i

9. Ina railway car, the combination of an inverted channel carline comprising a web, spaced apart walls and flanges atthe lower margins of the walls, a device forming a strut-tie between said walls, which device also provides a place for attachment of a load lifting device, and purlins supported by said flanges.

' V 10. In a railway'car, the combination of an inverted channel carline comprising a web, spaced apart walls and flanges at the lower margins of the walls, means to reinforce the walls located within the channel of the carline, a device forming a strut-tie between said walls, which device also provides a place for attachment of a. load lifting device, and purlins supported by said flanges.

ARTHUR E. SMALL.

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