US789391A - Metallic car-underframe. - Google Patents

Description

No. 789,391. AATBNTBD MAY 9, 1905.

i A. STUGKI. METALLIC GAR UNDERFRAMB.

APPLICATION FILED FBB.` 3, 1905.

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PATENTED MAY 9, 1905.

A sTUcKI. METALLI@ GAR UNnERPRAMB.

APPLICATION FILED FEB. 3, 1905.

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y UNITED STATES Patented May 9, 1905.

PATENT OEEICE.

ARNOLD STUOKI, OF ALLEGHENY, PENNSYLVANIA, ASSIGNOR TO STAND- ARD STEEL OAR COMPANY, OF PITTSBURG, PENNSYLVANIA, A OOR- PORATION OF PENNSYLVANIA.

NIETALLIG CAR-UNDERFRANIE.

SPECIFICATION forming part of Letters Patent No. 789,391, dated May 9, 1905.

Application filed February 3, 1905. Serial No. 244,082.

To al?, whom, it may concern.-

Be it known that I, ARNOLD STUGKI, a resident of Allegheny, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Metallic Oar- Underframes; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to metallic under- IO frames for railway-cars, and more especially to underframes for cars having a horizontal floor.

The object of my invention is to improve car-underframes in particulars hereinafter de- I5 scribed and claimed.

In the accompanying drawings, Figurel is a plan view of one-half of the underi'rame with the ioor removed and showingl transverselyarranged hoppers. Fig'Q is a vertical longitudinal section on the line 2 2, Eig. 1. Fig. 3 is a transverse section on the line 3 3, Fig. l. Fig. 4L is a transverse section on the line I 4, Fig. 1; and Fig. 5 is a perspective view of one of the brackets for the licor-supports. My improved car-underframe comprises a center sill l, body-bolsters 2, draft-sills 3, end sill 4, and side sills 5. The latter, however, are not necessary in all types of cars, as the metallic side walls of certain cars can be formed as plate-girders and act not only to confine vthe lading, but also as a sill to carry part of the load.

The body-bolster may be or' any preferred type, that shown comprising web lilling members extending between the sills and suitably secured thereto at their ends, together with top and bottom cover-plates. This construction, however, is old and `forms no part of my invention, as any form of bolster will 40 answer the purpose. The draft-sills and end sills likewise may be oi' any suitable or preferred type. The drawings show diagonal braces 6 extending Jfrom the corners of the underi'rame to the intersection of the draft-sills and body-bolsters; but these also are old and form no part of the invention. The side sills 5 when used may be of any form of beam,

either trussed or otherwise, those shown in the drawingsbeing rolled channel-beams.

The center sill l is of a special trussed construction. It comprises a pair -o'f parallel beams 8, which may be ot' any suitable form, either rolled shapes or oi a built-up plategirder type, those shown being rolled channel-beams, these being preferred, as they provide smooth inner faces for the attachment ot braces and struts. These parallel beams 8 form the compression member ot the truss. The tension member is formed by a suitable member 9, which may be either a rolled commercial shape, such as the channelbeam shown, or an I-beam, or of a built-up type having' a horizontal web l() and edge flanges 1l. The ends of this tension member project between the parallel beams 8, and the [langes Il of the tension 'member are riveted to the webs of the latter, as shown in Figs. 2 and et. The lianges of the tension member 9 are preferably directed downwardly, so as to facilitate riveting to the beams 8 and also to provide for a more convenient attachment for the strut and cross-bearers.

Intermediate its ends the tension member is separated from the compression member, and interposed between the two is a strut or struts l2, two such `struts being used in the design ol car shown in 'the drawings, one on either side of the transverse centerl thereof. Only one of these struts appears in the drawings. This strut may be ol any suitable form; but for convenience it will be provided'with a web 13, extending transversely between the beams 8 and havingl edge l'langes let either integral therewithor riveted thereto, these [langes serving as a convenient means Afor attachment to the beams 8. The particular strut shown is a pressed pan-shaped member having not only the edge flanges 14, but also end lianges 15. The iiange 15 at the lower end serves asa convenient means for riveting directly to the web of the tension member 9. The anges 15 may be omitted, il desired.

Suitable cross-bearers ol truss type are provided at one or more points, preferably at the points ot' the application of the struts 12. These cross-bearers havea compression member 16 of some suitable ianged shape, such as the angle shown, having a vertical leg 17, which is riveted to the web of the strut 12 at its lower end, and a horizontal flange 18, which rests upon and is riveted to the web of the tension member 9. This angle-shaped cross-bearer member therefore serves as a knee-piece for uniting' the strut tothe tension member 9, and the riveting' of the lower fiang'e 15 of the strut to the tension member may be dispensed with, if desired. The tension member of the cross-bearer is formed by the upper end of the strut l2, lling-pieces 20, extending' from the center to the side sills and suitably connected to both by means of angle-plates 21, and a transverse tie member 22, extending' continuously across the center sill toward the sides of the car and riveted to the filling-pieces 20 on opposite sides of the center sill. The outer ends of the compression member 16 of the cross-bearer are connected to the lilling-pieces 2O by means oi' connection-plates 23.

The particular underirame shown is provided with transversely-arranged hoppers between the center and side sills, said hoppers havinghorizontalwoodendoors24. Thesides of the hoppers are formed by inclined hopper-sheets 25, ianged at their ends and riveted to the center and side sills. These sheets at their lower edges are stil'ened by means of angles 26 and at their upper ends by means of horizontally-bent portions 27. The hopper-sheets nearest the transverse middle oi" the car have their horizontal portions 27 resting' upon the filling-pieces 2O of the crossbearers.

The Hoor 29 is a wooden one and is secured to longitudinal nailing-strips 30, which are substantially flush with the top of the metallic underframe and are supported at their ends on brackets 31, secured to the crossbearers and body-holsters. Those next to the body-holsters have their inner ends supported in brackets or pockets 32, formed, preferably, of pressed metal and shown in detail in Fig. 5 and riveted to the inclined hopper-sheets 25.

The underframe described is exceedingly strong' in comparison to its weight. The eenter-sill construction especially is exceedingly rigid not only vertically, but also laterally, the latter being due to the horizontally-disposed web oi' the tension member 9. The connection of the cross-bearer with this deeptrussed center sill also is very simple and affords maximum strength for weight of material used. Simplicity and cheapness in erecting is an important advantage, it requiring' the driving of a comparatively small number of rivets and all easy of access.

l/Vhat I claim ish 1. In a metallic car-underframe, the combination of body-bolsters, and a trussed longitudinal sill comprising compression and tension members and a strut, said compression member comprising two parallel beams and said tension member having a web disposed horizontally and langes at the edges of said web, said tension member at its ends extending between the parallel beams of the compression member and having its flanges riveted to the latter and terminating at the bodyholsters.

2. In a metallic car-underframe, the combination of body-holsters, and a trussed long'itudinal sill comprising compression and tension members and a strut, said compression member comprising two parallel beams, and said tension member being a ianged beam with its web disposed horizontally and at its ends extending between the parallel beams of the compression member and terminating at the body-bolsters and having its flanges riveted to the compression mem ber.

3. In a metallic car-underframe, the combination of body-holsters, and a trussed longitudinal sill comprising compression and tension members and a strut, said compression member comprising two parallel beams, and said tension member being a channel-beam with its web disposed horizontally and at its ends extending' between the parallel beams of the compression member and having'its flanges riveted to the latter and terminating at the body-holsters.

4. A trussed longitudinal car-sill comprising compression and tension members and a strut, said compression member comprising two parallel beams, said tension member having a web disposed horizontally and flanges, and said strut having' a vertical web arranged transversely and iianges on the edges of said web riveted to the parallel beams of the compression member.

A trussed longitudinal car-sill comprising compression and tension members and a strut, said compression member comprising two parallel beams, said tension member having a web disposed horizontally and ianges at the edges of s'aid web, said tension member at its ends extending between the parallel beams of the compression member and having' its flanges riveted to the latter, and said strut comprising' a vertical web arranged transversely and having flanges riveted to the parallel beams of the compression member and its lower end suitably secured to the tension member.

6. A trussed longitudinal car-sill comprising compression and tension members and a strut, said compression member comprising two parallel beams, said tension member being' flanged, and said strut comprising a vertical web disposed transversely and having' iianges riveted between said parallel beams of the compression member and having its lower end secured to the tension member.

7. A trussed longitudinal car-sill compris- IOO IOS

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ing compression and tension members and a strut, said compression member comprising two parallel beams, said tension member being llanged,and said strut comprising a pressed plate provided with flanges on its edges, said plate being disposed vertically With its upper end lying between the parallel beams of the compression member and its flanges riveted to the latterand having its lower end secured to the tension member.

8. A metallic car-undert'rame comprising a trnssed center sill composed of parallel beams forming a compression member, a tension member having a Web disposed horizontally and flanges at the edges of said web riveted to the parallel beams, a strut provided with flanges for riveting to the parallel beams, and a cross-bearer member extending across the tension member of the sill at the strut and secured to both.

9. A metallic car-underframe comprising a trussed center sill having a pair of parallel beams forming the compression member, a tension member having a web disposed horizon tally and anges at the edges of said web riveted to the parallel beams, a strut provided with anges for riveting to the parallel beams, and a flanged cross-bearer member extending across the tension member at the strut and having one flange riveted to said tension member and another flange riveted to the lower end of the strut. I

l0. In a metallic car-underframe, the combination of longitudinal sills and transoms,

' hopper-sheets extending transversely of the car, and longitudinal floor-supports snpported by the transoms and hopper-sheets.

11. In a metallic car-nnderframe, the com bination of longitudinal sills and transoms, hopper-sheets extending transversely of the car,brackets secured to said hopper-sheets, and longitudinal 'floor-supports supported at one end by said brackets and at their opposite ends by a transom.

In testimony whereof I, the said ARNOLD STUCKI, have hereunto set my hand.

ARNOLD STUCKI.

Witnesses:

ROBERT C. ToT'rEN, G. KREMER.

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