US799325A

US799325A - Car construction.

Info

Publication number: US799325A
Application number: US25861005A
Authority: US
Inventors: George Gibbs
Original assignee: Individual
Current assignee: Individual
Priority date: 1905-05-03
Filing date: 1905-05-03
Publication date: 1905-09-12
Anticipated expiration: 1922-09-12

Description

No. 799,325. PATENTED SEPT. 12, 1905.

G. GIBBS.

GAR CONSTRUCTION.

2 SHEETS-SHEET l.

ATTES'T- IN-VENTORI j GEORGE GIBBS.

I I l BYWWLQLL {v v ATT'Y'SQ PATBNTED SEPT. 12, 1905.

G. GIBBS. GAR CONSTRUCTION. APPLIOATION FILED MAY 3, 1906.

2 SHEETS-SHEET 2.

INVENTOR GEORGE GIBBS.

ATIY s.

UNITED sT rEs PATENT OFFICE. I

(iEORG-E GIBBS, OF NEW YORK, N. Y.

CAR CONSTRUCTION.

Specification of Letters Patent.

Patented Sept. 12, 1905,

Application filed May 3, 1905. Serial No. 253,610.

To all whom it may concern:

Beit known that I. GEORGE GIBBs, a citizen of this specification, .in which Figure 1 is a side elevational view of the skeleton side frame of a railway-car constructed in accordance with myfinvention.

Fig. 2is a fragmentary sideelevational view. of a slightly-modified'form of skeleton side frame. Fig. 3 is a cross-sectionalview on the line 3 3 of Fig. 1. Fig. 4 is a fragmentary cross-sectionalview through the car on the line 4 4- of Fig. 2. Fig.5 is across-sectional view through amodified form of side frame, the bracing being shown in elevation. Fig. 6 is a sectional view througha furtherflmodifled form of ,bracing, and Fig. 7 is a further modified form of bracing.

This invention relates to the general class of railway rolling-stock, but particularly to a framing for steel cars.

One of the objects of the invention is to provide a steel car possessing a maximum strength combined with a minimum weight;

and, broadly stated, the invention includes side trusses arranged under the window-sills,which span the space between the body-bolsters, so as to transfer the weight and. strain thereto.

It is also the object of this invention to provide a side door intermediate'the body-bolsters, and preferably at the middle of the car. In order to provide such a structure with the door intermediate'the body-bolsters, it is necessary that the side trusses shall be below the floor-level adjacent to the door; but the trusses may extend above the floor-level on either or both sides of the door. In an ordinary construction of car it will be necessary to practically cut the trusses in two and leave only the under-framing to carry the loads. With a construction similar to the one illustrated in this application the load is carried by the side trusses and transmitted to the body-bolsters.

In the construction shown I prefer to use a bent truss arranged to be carried underneath the middle door, which truss is preferably of less depth under the door-sill than at other portions. Thus the bent truss will provide rigidity, and the carrying strength of the side sills and their stifl'ening against all forms of strain may be provided for by properly proportioning the truss. In this construction of passenger-car framing lightness and strength are secured .by a system of deep side trusses, with cross-bearing trusses to stiffen against lateral deformation, and the carrying of the major portion of the floor-load is insured.

This arrangement has great advantage over supporting the weight at the middleof the car by truss-rods,as the bent truss makes a car which is laterally and vertically stiff and which will effectually resist buffing strains.

Referring now to the drawings, 1 indicates "the side posts. and Zindicates the metal side posts, which also constitute the door-posts,

which frame in the sides of the door-opening, preferably at about the middle of the car.

3 indicates one of the lower side sills, which also forms the floor-support of the lower m'em-' ber of the truss and is continuous from end to end. The uppermember of the truss, which also constitutes. the belt-rail under the windows, is designated at 1. "This upper member is illustrated as being continuous from the ends to the center door-posts 2, so to form a finish under the side windows.

5 designatesa downwardly bent or deflect ed truss member which passes under the doorsill and is secured at its end to the upper chord 5 of the truss. Thus the upper chord of the truss is made practically continuous, in effect, from one end of the car to the other. The u pper and lower chords of the truss member are stiffened by diagonals 6, the upper chord being the compression member of thetruss and the lower chord member being the tension member of the truss.

7 is-a plate which is connected to the upper and lower chords of the truss and is illustrated as being below the door-sill. This plate 7 will serve as a girder, so that the side, in effect, will be a combination girder and truss. The upper ends of the posts 1 and 2 are connected to an angle side plate, which will assist in stiffening the sides of the car and relieve some of the strain on the truss.

The re ference-nu'meral 9 designates diagonal braces secured to the upper and lower truss members, so as to assist in preventing buckling of the lower truss member.

10 designates cross-bearers below the floor of the car, which cross-bearers are shown as comprising channels the webs of which are vertical. These cross-bearers are arranged,

below the center sills 11, and they are secured as being secured to at their ends to the trussed sides to prevent the side trusses from buckling at the lower portions. \Vhile I prefer to construct these cross-bearers 10 of channel form, I reservethe right to utilize other shapes or castings, if desirable. The cross-bearer 10 is combined with a diagonal truss 12, so as to comprise a crossbearing truss to communicate the weight of the floor to the side trusses. Similar crossbearers are arranged at suitable points along i the car and are preferably arranged to aline with the backs of the car-seats, of which they may form a part. 1

In Fig. 6 I have illustrated the diagonals 12 castings under the center sills, while in Fig. 7 they are shown as being/ secured to the cross-bearers, having end portions substantially flush with the top of the center sills and intermediate portions below the center sills, to which they are secured by suitable castings 13. This construction may be provided by bending the cross-bearers intermediate their ends, so .that they will .pass

' down beneath the center sills, the portions be- -'constitute the outside finish tween the center sills and sides being substantially flush with the tops of -said center sills.

It is to be understood; of course,- that the trussed sides will be. provided with plates to of the car, and these plates may be so arranged with respect to the upper and lower chords of the trussas to constitute the webs of a plate-girder, so that throughout the car I mayhave the advantage in strength of a plate-girder side combined with a truss.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is y 1. In a railway-car, trussed sides, the upper chords of which serve as belt-rails under the windows, said upper chords beingdeflected to form the sill of a door-opening; substantially as described.

2. A railway passenger-car, having side trusses provided with a continuous upper chord member above the floor of the car, said upper chord member being deflected to pass below a door-opening intermediate the ends of the car; substantially as described.

8. A railway passenger-car, the sides of which consist of trussed members of less depth below a side door-opening than below I the Windows; substantially as described.

4. In a railway passengencar, the combination with body-bolsters, of sides carried by the bolsters and comprising trussed structures, the upper chords of which form beltrails adjacent to the windows, part ,of said trusses being bent intermediate their ends so that the upper chords thereof rest below a door-opening in said car side; substantially as described.

5. A railway passenger-car having trussed sides, parts of the upper chords of which are deflected downwardly to frame in the bottom of a door-opening; substantially as described. 6. A "railway passenger-car having truss sidesprovidedwith upper and lower chords, parts of said upper chords of which aredefiected downwardly to frame in the bottom of the door-opening, at which points said truss is. relatively shallow, diagonals connecting the upperjand. lower chords of the relatively shallowportionof said truss, and plates connected to the upper a'ndlower chords of said truss at the relatively shallow portion; substantially as described; a

7. A railway passenger-car having trussed sides provided diagonals connecting said upper and lower chords, web-plates connected to the upper and lower chordsof said truss, said trusses being of less widths at their intermediate portions than at their ends; substantially as described.

.8. A-truss side forrailway passenger-cars, the upper and .lower chords of which are of uniform distances apart above the bottom of the car, and closer together at the middle portion of the car; substantially as described.

9. In a railway passenger-car, trussed sides, the upper chords of which constitute the beltrail, said belt-rails being deflected intermediate their ends to frame in the bottom of a door-opening, and plates secured to the upper and lower chords of said trussed sides; sub-' stantially as describe 10. In a railway passenger-car, trussed sides, the upper chords of which form'a beltrail, posts secured to said sides and extending above thesame, an angle side plate secured to the upper ends of the posts, and web-plates secured to the upper and lower chords of the trussedsides; substantially as described.

In testimony whereof I hereunto afiixmy signature, in the presence of two witnesses, this 27th .day of April, 1905.

r I GEORGE GIBBS.

W itnesses:

W. L.'I\IURRAY, H. S. JOHNSON.

with upper and lower chords,