US1421372A - Ladder construction - Google Patents

Description

LE ROY H. BADGER. LADDER CONSTRUCTION.

APPLICATION FILED NOV. 6, 1920.

Patented J uiy 4, 1922.

STATES saraar series.

LE ROY H. BADGER, OF OAK PARK, ILLINOT$, ASSIGNOR TO DE REMEB BLATCHLFORD COMPANY, OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.

LADDER CONSTRUCTION.

Specification of Letters Patent.

Patented July 4, 1922.

Application filed November 6, 1920. Serial No. 422,179.

against the ladder sufficient to detach it from the car as may. happen, for example,

when the ladder is on the side of the car and the ladder is side swiped the ladder will be bent and pulled away from its attaching devices without injury to such devices or rupture of the car sheathing. This arrangement is calculated to make the repair of a car so damaged less expensive and more expeditiously accomplished than would be the case were the ladder anchored to the car body by positive attachments.

A further object of the invention is to so construct the ladder attachments that they will have no projecting parts on which the trainmen are likely to catch their clothing and to thereby eliminate a possible cause of personal injury which the ordinary ladder constructions often present.

The invention consists in the new and improved arrangements, construction and devices, to be hereinafter described and claimed, for carrying out the above stated objects and such other incidental objects as will be referred to in the following description of the preferred embodiments'of the invention shown in the accompanying drawings.

In the drawings Fig. 1 is a fragmentary side elevation of a railway refrigerator car with a ladder attached to the car in accordance with my invention.

Fig. 2 is a fragmentary sectional view,

on a larger scale, taken on line 22 of Fig. l.- r

Fig. 3 is a view, in perspective, of one of the attaching devices employed for anchoring the ladder stiles to the car body.

Fig. 4 is a vertical sectional view of the attaching device on a larger scale than Fig. 3, and

Fig. 5 is a detail view, in perspective, of a modified construction.

Referring first to Figs. 1 to 1 inclusive,"

1O designates the outer wooden sheathing of a refrigerator car (it will be understood that the invention is applicable to boxcars or other types of railway rolling stock), 11

the inner sheathing and 12 the insulating' linings. The ladder may be of any desired construction. I have shown it as consisting or a pear of angle bar stiles 13, to which are secured rungs 14'.

The stiles are attached to the car body by means of four attaching devlces 15, of box-like construction, preferably castlngs, one of which 18 shown in detail in Figs. 3

and 4:. As shown, the attaching device is formed with a back'plate or web 16, a front web 17, side webs 18 formed with openings 19, and, an end web 20. The front and side webs are in-set with respect to the end web for a distance substantially equal or just a trifle greater than the thickness of the flanges of the ladder stiles, and the end web is preferably inclined and curved as shown. The end of the ladder stile bears against the front web 17 and one of the side webs 18. and is secured to the attaching device by any suitable fastening element, such as a bolt 21.

In the construction shown in Figs. 1 .to i inclusive, the front webs 17 of the attaching devices are formed with slots 22 through which the fastening bolts pass. These slots are open at their inner ends (the attaching devices at the bottom of the ladder being inverted with relation to the position of those.

with curved end webs and in-setting the 1 sidewebs and front web as shown, to form shoulders 23, 24, the construction presents no projecting parts likely to catch the clothing, for example, the bottom of the trousers able in a refrigerating car in order that the insulating lining should not be perforated or its insulating effect impaired by running the bolts through to the interior of the car.

i The requisite strength of the attachment is obtained by providing horizontal metal strips 26, on the inside of the outer sheathing through which the bolts 25 extend.

In Fig. 5 the. end of the stile 13 is anchored to the car by means of a fastening device 15 to which the stile is attached by a bolt 21 which passes through the side flanges of the stile and through slot E22 formed in the side web 18 of the attaching devices. This construction has this disadvantage, that the attaching devices have to be made as rights and lefts,.but is of possible advantage in that the bolts are so placed that. they cannot catch the clothing of the trainman, although in any case the bolts do not project far enough to result in any serious inconvenience in this respect.

I claim: i

1} A ladder construction for railway cars comprising, in combination, a ladder and ladder supporting means to which the ladder is so secured as to, permit its separation thereii'rom when buckled at an intermediate point out of normal position.

2, A ladder construction for railway cars. comprising, in combination, a ladder and ladder supporting means on which the ladder has a slidable anchorage permitting it to be separated therefrom when. bent laterally. i

3. A, adder construction for railway cars comprising, in combination, .aladder composed of upright stiles and rungs, and devices: for anchoring the ends of the stiles to the carbody so. constructed as to allow separation of the stiles from the attaching devicesunder "abnormal stresses on the ladder.

4. A ladder construction for railway cars comprising, in. comblnatlon, a ladder com.-

posed of upright stiles and rungs, and

anchoring devices for the ends of the stiles providing slidable connections, which permit the. stiles to pull away from the attaching devices when the styles are buckled.

5. A ladder construction for railway cars com-prising, in. combination, a ladder composed; of upright stiles and rungs, anchoring devices for the ends. ofthe stiles, means for connecting the ends of each stile withthe corresponding anchoring device comprising anr openrended slot in one of said elements,

and a'tastening device, extending through. said. slot and through the other of said ele ments.

comprising, in combination, a ladder composed: of upright stiles and] rungs, zuichoring; devices; for the. ends of the stiles, means for connecting the ends of each stile with the corresponding anchoring device comprising an open-ended slot in the anchoring device and a iiastening device extending through said slot and through the stile.

7. In a ladder construction for railway cars, the combination of attaching devices adapted to be secured to the car and provided" with webs spaced from the car and formed with open-ended slots, a ladder, and means extendingthrough said slots for fastening the ladder to saidattaching devices.

8'. In a ladder construction for railway cars, the combination of box-like attaching devices adapted to be secured to the car and having their forward faces formed with slots open at the ends, a' ladder, and means exformed with webs adapted to lie flatwi'se" against the WBlbSDf the attaching devices, one set of said first-mentioned webs being formed with open-ended slots, and means extending through the slots fer fastening the ladder to the attaching devices;

10. In a ladder"construction for railway cars, the combination of box-like attaching devices, a ladder comprising; angle bar stiles adapted to bear against the front and side faces of the attaching devices, and fastening elements for securing the stilesto the attaching devices, one set of the parts so fastened together being formed with slots through which the fastening elements pass and which are open at their ends to allow the ladder to be separated from the attaching devices under abnormal stress on the ladder.

11. In a car ladder constructiom'the combination of boX-likeattaching devices each having an inclined end web and a web which is substantially vertical and spaced from. the car, and a ladder having stiles lying flatwise against and being secured upon the outer faces of the said vertical webs of the attaching devices. I

12. In a ladder construction for railway cars, the combination ofal'adder comprising a pair of. angle bar stiles and rungs; an attaching device for each end of each of the stiles consisting of a box-like structure having a back web for attachment to the car, a. curved end web and side and front webs in-set from the adjacent portions of the end web, the front web being formed with an open-ended slot; and bolts extending-through said slots for securing the ladder stiles to said attaching devices.

13. In a ladder construction for railway cars, the combination of a ladder comprising a pair of angle bar stiles and rungs; an attaching device for each end of each of the stiles consisting of a box-like structure having a. back web for attachment to the car, a curved end web and side and front webs in-set from the adjacent portions of the end web, one of the side webs being formed with an open-ended slot; and bolts extending through said slots for securing the ladder stiles to said attaching devices.

14. In combination with the wall of a car comprising inner and outer sheathings in spaced relation to each other, a ladder, attaching devices carried by said ladder at each end portion thereof for securing the ladder on the outer face of the wall, a horizontally disposedreinforcing strip of metal at each end of the ladder on the inner face of the outer sheathing extending from one to the other of said attaching devices, and bolts passing through both the attaching devices and the strips serving to secure said attaching devices and said reinforcing strips firmly in position.

15. In combination with the wall of a car comprising inner and outer sheathings in spaced relation to each other, a ladder, attaching devices carried by said ladder at each end portion thereof for securing the ladder on the outer face of the wall, a horizontally disposed reinforcing strip of metal at each end of the ladder on the inner face of the outer sheathing extending from one to the other of said attaching devices, bolts passing through both the attaching devices and the strips serving to support said at taching devices and said reinforcing strips firmly in position, and an insulating lining between said inner and said outer sheathings arranged on the inner faces of said reinforcing strips whereby the ladder is supported in position without having the supporting bolts passed through the insulating lining.

LE ROY H. BADGER.

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