US1318448A - Dbaft-abm fob bailw ay-cabs - Google Patents

Description

H. L. INGERSOLL. DRAM ARM FOR RAILWAY CARS.

APPLICATION FILED SEPT. 10. 19).

2 SHEETS-SHEET L [2? m n 02 At vwaralfnyanswi Patented. Oct. 14, 1919 jnyeiz/an zyerfal? H L INGERSULL DRAFT ARM FOR RMLWAY CARS. APPLICATION mm SEPT- no. 1918.

ll l I I l I P l t I t Q 1 l I I S r ll HOWARD L. INGERSOLL, 0F WHITE PLAINS, NEW YORK.

DRAFT-ARM FOR RAILWAY-CARS.

Specification of Letters Patent.

Patented Oct. 14, 1919.

Application filed September 10, 1918. Serial No. 253,385.

To cll whmu it may concern Be it known that l, liowwan ll. Ixonnsonn, a citizen of the United States, and resident of White Plains, county of \Vestcl'lester, and State of New York. have invented certain new and useful Improvements in Draft- Arms for Railway-Cars, of which the following: is a specification. and which are illustrated in the accoinlmnying drawings, forming a part thereof.

The invention relates to draft arms forni- ;in; parts of the underfrainin of railway cars and serving not only as t in means for supporling' the draft gearing but also as means for strengthening the niulerframing and distributing: the stresses of draft and boiling thereto.

\Vhilc the invention is applicable to new eonstrm-tions. it is of special value -for strmigtluening old cars having wood underframing and which are unable to endure the severe service of present day railway practice.

One embodiment of the invention is hereinafter described and is illustrated in the accompanying drawings. in whicl Figure l is a detail plan View. partly in section, some portions being broken away and some being omitted, of the nnderfraniin; of a railway car provided with the improved draft arms;

Fig". 2 is a detail longitudinal section of the underframing of a on r taken outside of the. center sills; and

Fig. 3 is a detail section on the, line 3-3 of Fig. 1.

The center sills of an ordinary railway car are represented at 10, 11, and the car bolster at 12. The center sills are shown as of wood and the bolster as a cast beam of I-section, suitably provided with a ver-' tic-ally apert-ured enlargement 13 for receiving the king pin. lhe l'iarticular type of bolster is immaterial to the present invention.

The draft arm is ,of cast steel and is provided' with integral flanges, as hereinafter described. for giving it ample strength and for facilitating its attachment to the car sills. there is an arm associated with each of the center sills, each arm comprising a.

bed f portion 14, provided with the usual "dirt-t andbutlingshoulders 15, 16. It is applicable for use in connection with any of the types of draft gear now in use. The

aperture lf is shown as for the purpose of accommodating the spring'carrying cross rodemployed in some forms of gear and is without function save as it lightens the castinp; when such a rod is not present.

The body portion 1.4 of the arm is provided with an outstanding flange 18, and at its upper margin with an outstanding flange 19 adapted to fit against the under face of the sill, to which it is secured by suitable bolts. A flange 20 extends upwardly from the. body portion It and fits and may be secured to the inner face of the sill, this flange extending backwardly over and a considerable distance beyond the car bolster. The lower margin of the flange 20 is recessed, as shown at 21, to receive. the bolster, and this recess is preferably of suliicient length to render the arm applicable to cars having their bolsters located at varying distances from the end sill, thereby adapting the arm for attachment to old cars without making it, necessary to design the arm especially for the particular car to which it is to be applied, or to shift the position of the bolster. The body portion 14 of the arin terminates at or immediately forward of the bolster.

As thus far described the draft arm is of known construction, with the exception of the feature. which renders it ni'iiversally applicable to old cars.

-A plate 22, which may take the form of a section of a truncated cone, is riveted to the bottom flanges 18 of the two draft arms immediately forward of the bolster, and to the bottom flange or plate of the bolster, as indicated at 23. For the purpose of stifi'cning this plate its diagonal margins may be provided with depending flanges. Preferably this feature is secured by riveting to the plate a pair of angle bars 24, 24.

A gusset plate 25 is riveted against the lower face of the flange 19 of each of the draft arms, back of the bolster, and is also riveted. as indicated at :26, to the upper plate. or flange of the bolster. The holes in the draft. arm flanges which receive the rivets attaching the plates 22 and 25 may be either drilled or formed in the casting operation.

Draft and boiling stresses are distributed ing the forces in part directly to the longitudinal sills of the car outside of the center sills. These plates also overeome the tendency to tilt or turn the bolster about its axis under severe balling shocks or when the brakes are suddenly applied. The plate 22 unites the two arms and the bolster as a single unit, whereby they act together in resisting the stresses of serving. It also serves to prevent the spreading or outward bowing of the draft arms under severe buliing shocks, and obviates the necessity for a separate tie-plate.

These plates also cooperate with the elongated recesses 21 in the draft arms in rendering the latter interchangeable on cars of various measurements, as in assembling the plates may be suitably positioned with relerenec to both the bolster and the arm.

Various changes of detail may be made from the eonstrmztion as illustrated and desrribed, and it is obvious that some of its advantages would be secured if the cenlral portion of the plate 22 were omitted.

As to some of its featums the invention is applicable to constructions in which the rearward extension of the draft arm does not arch over the bolster.

I claim as my invention- 1. A draft arm for railway ears comprising a body portion provided. with draft and bulfing shoulders, a flange adapted to bear against a vertical .face of a center sill and projecting backwardly to arch over the body bolster of the car, in combination with a plate secured to the bottom of the body portion and extending outwardl therefrom and adapted to be secured to tie body bolster. V

2. A draft arm for railway ears comprisin a body portion provided with draft and ba hing shoulders, a flange adapted to bear against a vertical face of a center sill and. projecting backwardly to arch over the body bolster of the ear, in oombinationfwith a plate secured to the bottom of the body )01'- tion and extending 'outwardl there rom and ads; ted to be secured to t e body bolster, an a gusset plate secured to the bottom of the rearward ortion of the flange and extendin outwarcll to be secure to the upper part of the car bolster.

3. A pair of draft arms each adapted for attachment to a. center sill of a car and to arch over and project beyond the bolster thereof, each arm being provided with draft y and being adapted and balling shoulders, a plate attached to the lower margins of the vtwo arms and extending outwardly beyond the arms and being adapted for attachment to the car bolster and a pair of gusset plates each uttacl'ied to the lower i'nargin of one of the ari'ns back of the holster and extending outward and adapted for attachment to the bolster.

t. A draft arm for railway cars eom n'is ing a body portion and an extension for arching over the car bolster, and having a flange for underlying a sill, the lower face of the extension being recessed to receive the bolster, such recess being elongated to adapt the arm for use on cars haviiig' the bolster positioned at dilferent distances from lhe end of the ear.

A pair ol draft arms each having a body portion and an extension for arching! over the car bolster, such extension being in Posse-d to receive the bolster and the rooms being: of sulliricnl length to permit the application of the arm to cars having their bolsters at :litlerem distances lrom the end of the car, and a plate underlying and at tached to both arms and extending laterally therefrom and being adapted for attachment to the bolster.

(i. In a railway ear, the combination with wooden center sill, of a draft arm having a body portion provided with draft and buffing shoulders, a" flange adapted to bear against a vertical face of the sill and projeet backwardly beyond the bolster of the car, a plate secured to the bottom of the body portion and extending outwardly therefrom and adapted to be secured to the body holster, and extend forwardly therefrom, a second *plate secured to the bottom of the flange and extending outwardly therefron i and adapted to be secured to the body bolster and extend rearwardly there from. i

7. A pair of draft arms each adapted for attachment to a center sill of a car and to project over and beyond the bolster thereof, each arm being provided with draft and buffing shoulders, a plate attached to the lower margins of the two arms and extending outwardly beyond the arms and'being adapted for attachn'ient to the car bolster,

and a pair of gusset plates each attached' to the lower margin of one of the arms back of the bolster and extending outward and adapted for attachment to the bolster.

HOWARD L. INGERSOLL,

Images