US1176311A - Car end-post construction. - Google Patents

Description

P. PARKE.

CAR END POST CONSTRUCTION.

APPLICATION man 050.7.1914.

Patented Mar. 21, 1916.

2 SHEETS-SHEET 1.

- P. PARKE. CAR END POST CONSTRUCTION.

APPLICATION FILED DEC. 7, 1914.

Patented Mar. 21

2 SHEETS-SHEET 2.

' PETER PARKE,

OF CHICAGO, ILLINOIS, ASSIGNOR TO THE PULLMAN COMPANY, OF

CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

CAR END-POST CONSTRUCTION.

Specification of Letters Patent.

Patented Mar. 21, 1916.

Application filed December 7, 1914. I Serial No. 875,883.

To all whom it may concern:

Be it known that I, PETER PARKE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Car End-Post Construction, of which the following is a specification.

My invention relates especially to a new and useful construction and arrangement of end posts in connection with assenger cars having a metallic underframe and has for its primary object to rigidly attach and firmly support the end posts at the buffer beam and end sill in such a manner as to permit the full strength of the posts to be utilized.

W'hen in'railroad wrecks cars tend to telescope the end posts are intended to interpose a resistance which shall effectually overcome the extending of the telescopic action from the platform to the body of thecar. In telescoping the pressure is usually concentrated on the end posts at a point about eighteen to twenty inches above the platform floor and considering the leverage through which this pressure acts the ordinary connections between the end posts and the underframe usually yield and the posts pull away from their fastenings before their full strength has been utilized.

According to my invention I so secureand support the lower portions of the outer and inner end posts as to effectually preclude their pulling out from the underframe and laterally reinforce the same against laterally exerted stresses at their most vulnerable points. I In order that the invention may be readily understood by those skilled in the art a preferred embodiment of the same is set forth in the accompanying drawings and in the subjoined detailed description based thereon.

As. however, the invention is susceptible of modified embodiment within considerable range without material sacrifice of its advantages the drawing and description are to be taken in an illustrative rather than in an unnecessarily limiting sense.

In the drawingsFigure '1 is a horizontal cross section taken through a car end above the floor level; Fig. 2 is a longitudinal vertical section on the line 2-2 of Fig. 1; Fig. 3 is a transverse vertical section on the line 33 of Fig. 1; Fig. 4 is a similar section on the lined-4 of Fig. 1; and Fig. 5 is a detail perspective view of the special strut member.

As illustrated, the reference numeral 11 designates outer end posts of angle. channel or other shaped material, herein shown as of I-cross section, the lower ends of the posts seated within pockets 12 of corresponding cross section formed in the upper face of the buffer beam 13, the lowerends of these posts resting upon the lower wall of the buffer beam. The lower wall .of the beam 13 is apertured in line with the web 11 of the end posts to a width somewhat greater than the thickness of the web and through this lower a erture is inserted from below a pair of g'ibs 14: having heads 11?, one of the gibs extending on each side of the web 11? for a material distance above the upper edge of the beam and preferably to a height of about two or two and one-half feet. The gibs are then riveted together through the web 11 and constitute a substantial reinforcement of the post throughout the portion subjected to greatest telescoping strain. The heads 14 of the gibs bear against the lower edge of the buffer beam and thus effectually preclude the pulling of the post out of the pocket. The center sills 15 extend forward to a connection with and abutting against the rear wall of the buffer beam. The usual end sill cover plate is indicated at 16 and the end sill bottom plate at 17.

However well supported and reinforced, the outer end posts are not deemed sufiicient as a safe-guard against telescoping on account of the limitations in space available for such posts at the platform buffer beam and a set of inner posts is therefore usually provided at the end sill of the car which inner end posts are ordinarily attached to the end sill diaphragm by means of rivets. The end sill diaphragms are. however, usually quite shallow and therefore do not provide adequate means by which the lower ends of the inner posts can be secured in a manner substantial enough to utilize the strength of'the posts.

By my construction the inner posts 18 are secured at substantially the floor level to an upturned flange 19 of the end sill cover plate which abuts against the rear flange of the-post and forms the fulcrum point about which the post tends to turn when subjected to a blow above the floor level. At the 20 rigidly secured to stru t members 21, hereinafter more particularly referred to, and

seated within the space between the flangesanother pair of an- 5 of the end post while chor blocks 22 are seated within'the space upon the opposite side posts and secured in a the un'derframeof the car or formed inteof the-web ofthe similar manner to gral with the combined buffer beam and buffer spring housing casting 23, as herem illustrated.

The strut members 21, hereinbefore referred to,

are preferably of Z-cross section 5 and extend generally in a horizontal direction rearwardly and downwardly from a point of rigid connection to the buffer beam behind the outer end post 11 to a point of rigid connection with th e end sill and bottom plate 17. The rear portion of the strut member 21 is stepped (Fig. .to provide a vertical end face 21 against the front face of offset horizontal upper abutting rearwardly the end sill 24, the face 21 extending 5 underneath the end sill and attached to the 21 supporting the lower bottom plate as stated and the lower flange end of the post 18.

In the angle between the lower end of the inner post 18 and the l the strut member 211s in ower flange 21 of ounted a heel block or stop 25, the ,same being riveted to the flanges of the post and strut.

By the strut member 21 the bending stresses on the inner and the heel block end post 18 are transa5 mitted through the anchor blocks 20 and 22' 25 to the steel underframe of the car and thus the full strength 'of the said posts is util struction also the mem 0 from the buffer beam to the end sill and.

ized. By my conbers 26 extending serving as step risers are of channel cross section and are made exceptionally strong so as to serve as additional strut members by means of which horizontal stresses are transferred from the buffer beam to the end Slll.

It will thus be seen tha construction in which strains encountered in a t I have provided a the extraordinary train wreck or the like are so distributed as to utilize to the full extent the strength of all the parts.

The gibs, bv which secured to the buffer strength as to resist the outer end posts are beam are made of such shearing and so that the posts will bend and break o-fi before they pull from the pockets, and similarly the inner end posts will reach resistance to bending before their connection so will yield by reason of their maximum of and breaking strain with the underframe the support given them by the strut members 21 through the 1 blocks 20, 22 and 25.

I claim: 1. In car construction, two members disposed a the combination of t an angle to each .beam from below *therein, and the second having an end seated in and extending to the bottom of the pocket, a headed gib inserted from the opposite side of the first member and lying alongside the second member for a material distance beyond the pocket,'and with its head bearing against the bottom of the pocket and means to secure the gib and second member together.

2. In car construction, the combination of two members disposed at an angle to each other, the first having a pocket formed therein, and the second being of shaped cross section and having an end seated in and extending to the bottom of the pocket, a headed gib inserted from the opposite side of the first member and lying alongside the web of the second member, and with its head bearing against the bottom of the pocket and means transfixing the gib and web to prevent separation of the two members and to reinforce the second member.

, 3. In car construction, the combination of two members disposed at an angle to each other, the first having a pocket formed therein, and the second being of shaped cross section and having an end seated in and extending to the bottom of the pocket, a headed gib inserted from the opposite side of the first member and lying alongside the web of the-second member for a material distance beyond the pocket, and with its head bearing against the bottom of the pocket and means transfiXing the gib and Web to prevent separation of the two members and to reinforce the second member.

In car construction, the combination of two members disposed at an angle to each other, the first having a pocket formed therein, and the second being of shaped cross section and having an end seated in and eX- tending to the bottom of the pocket, a pair of headed gibs inserted from the opposite side of the first member and lying alongside the two web faces of the second member for a material distance beyond the pocket, with their heads bearing against the bottom of the pocket and means transfixing the gibs and web to secure the same together to prevent separation of the two members and to reinforce the second member.

In car construction, the combination of a buffer beam having pockets formed in-the' upper face thereof, a vertical post of shaped cross section disposed substantially perpendicular to the beam and having one end seated in the pocket and resting upon the lower Wall thereof, a gib inserted in the and lying alongside the Web of the post, the gib being riveted to the web to prevent withdrawal of the post from the beam.

6. In car construction, the combination of a buffer beam having pockets formed in the upper face thereof, a vertical post of shaped cross section disposed substantially perpen lower wall thereof, and a pair of headed gibs inserted in the beam from below and bearing upon the opposite faces of the web of the post for a material distance beyond the pocket, the gibs being riveted together through the web to prevent withdrawal of the post from the beam and to reinforce the post laterally.

7. In car construction, the combination of center sills, an end sill, a bufler beam connected to the center sills, outer end posts seated in the beam, inner end posts disposed to the rear of the outer posts and abutting against the front face of the end sill with their lower ends extending'for a materialdistance below the end sill, and stop blocks forming a forward abutment for the lower ends of the-inner posts and secured to the car underframe.

8. In car construction, the combination of center sills, an end sill, a buffer beam connected to the center sills, outer end posts seated in the beam, strut members extending from the buffer beam rearwardly to the end sill, inner end posts disposed to the rear of the outer posts and in front of the end sill, anchor blocks laterally supporting the inner posts above the end sill, and stop blocks secured to the strut members and laterally supporting the lower ends of the posts.

9 In car construction, the combination of center sills, an end sill, a buffer beam connected tothe center sills, outer end posts seated in the beam, flanged strut members extending from the buffer beam rearwardly and downwardly to a connection with the end sill, inner end posts disposed to the rear of the outer posts in front of the end sill with their lower ends supported by the strut flanges, stops arranged in the angles between the struts and lower ends of the posts.

10. In car construction, the combination of center sills, an end sill, a buffer beam connected to the center sills, outer end posts seated in the beam, flanged strut members extending from the buffer beam rearwardly and downwardly to a connection with the end sill, inner end posts disposed to the rear of the outer posts in front of the end sill with their lower ends supported by the strut flanges, stops arranged in the angle between the struts and lower ends of the posts, and anchor blocks connecting the inner'posts and struts above'the end'sill.

11. In car construction, the combination of center sills. an end sill, abuffer beam connected to the center sills, outer end posts seated in the beam, flanged strut members extending from the buffer beam rearwardly and downwardly to a connection with the end sill, inner end posts disposed to the rear i i: r

of the outer posts in front of the end sill with their lower ends supported by the strut flanges, stops arranged in the angle between the struts and lower ends of the posts, and an end sill cover plate having an upturned flange abutting and secured to the rear flanges of the inner posts.

12. In car construction, the combination of center sills, an end sill, a buffer beam connected to the center sills, outer end posts seated in the beam, flanged strut members extending from the buffer beam rearwardly and downwardly to a connection with the end sill, inner end posts disposed to the rear ofthe outer posts in front of the end sill with their lower ends supported by the strut flanges, stops arranged in the angle between the struts and lower ends of the posts, anchor blocks connecting the inner posts and struts above the end sill, and an end sill cover plate having an upturned flange abutting and secured to the rear faces of the inner posts adjacent the anchor blocks.

13', In car construction, the combination of center sills, an end sill, a buffer beam connected to the center sills and having pockets formed in its upper face, outer end posts of shaped cross section seated in the pockets of the beam, headed gibs inserted from below into the beam and lying alongside the webs of the posts for a material distance above the beam, the gibs riveted to the webs to prevent the withdrawal of the posts and to reinforce the same laterally, inner end posts disposed to the rear of the outer posts and abutting against the front face of the end sill with their lower ends extending for a considerable distance below the end sills, stops arranged in front of the lower ends of the inner posts, and means to transmit the stresses of the inner posts through the blocks to the car underframe.

14:. In car construction, the combination of center sills, an end sill, a buffer beam connected to the center sills and having pockets formed in its upper face, outer end posts of shaped cross section seated in the pockets of the beam, headed gibs inserted from below into the beam and lying alongside the webs of the posts for a material distance above the beam, the gibs riveted to the webs to prevent the withdrawal of the posts and to reinforce the same laterally, strut members extending from the buffer beam rearwardly to a point of attachment to the end sill, inner end posts disposed to the rear of the outer posts, said inner posts rearwardly supported at the floor level by the end sill, and blocks forwardly supporting the lower ends of the inner posts and attached to the strut members at a point considerably below the floor level.

15. In car construction, the combination of center sills, an end sill, a bufler beam connected to the center sills and having pock- I j for a material distance above the beam, the

below into the beam and lying on opposite sidesof the web of each post and extending gibs riveted together through the web to prevent withdrawal of the post and to reinforce the same laterally, flanged strut members'extending from the buffer beam rearwar'dly to a point of attachment to the end sill, inner end postsof shaped cross section disposed to the rear of the outer posts with their lower ends supported by the flanges of the struts, anchor blocks laterally supporting the inner posts at substantially the floor level, and stops in the angle between the struts and lower ends of the posts and forming a forward support for the latter.

16. In car construction, the combination of center sills, an end sill,a buffer beam con nected to the center sills and having pockets formed in its upper face, outer end posts of shaped cross section seated in the pockets of the beam and supported by the lower wall thereof, a pair of headed gibs inserted from below into the beam and lying on opposite sides of the web of each post and extending for a material distance above the beam, the ibs riveted together through the web to prevent withdrawal of the post and to reinforce the same laterally, flanged strut members extending from the buffer beam rearwardly and downwardly and having a stepped terminal portion secured to the bot tom plate of the end sill, and an adjacent vertical face bearing against the front face of the end sill, inner end posts abutting rearwardly against the front face of the end sill with their lower ends supported by the flanges of the struts, and stops on the flanges of the strut members in the angles between the struts and lower ends of the posts and of center sills, an end sill, a buffer, beam connected to the center sills and having pockets formed in its upper face,.outer end posts of shaped cross section seated in the pockets of the beam and supported by the lower wall thereof, a pair of beaded gibs inserted from below into the beam and lying on opposite sides of the Web of each post and extending for a materialdistance above the beam, the gibs riveted together through the web to prevent withdrawal of the post and to reinforce the same laterally, flanged strut members extending from the buffer beam rearwardly and downwardly and having a stepped terminal portion secured to the bottom plate ofthe end sill, and an adjacent vertical face bearing against the front face of the end sill, inner end posts abutting rearwardly against the front face of the end sill with their lower ends supported by the flanges of the struts, stops in the angle be-' tween the struts and lower ends of the posts and forming forward aoutments for the latter, anchor blocks carried by the upper edges of the. struts and engaging Within the space between the post flanges at substantially the floor level, and an end sill cover plate having an upturned flange abutting the rear face of the inner posts adjacent the anchor blocks,

In testimony whereof I have hereunto signed my name in the presence of two subscribing witnesses.

PETER PARKE.

Witnesses J. E. CA-NDLIN, G. C. PHILLIPS.

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