US798776A - Car-truck. - Google Patents

Description

No. 798,776. PATENTED SEPT. 5, 1905. W. 0. FREBT.

GAR TRUCK.

Arymuuron FILED MAY 19, 190s.

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` Amm/vir No. 798,776. PATENTED SEPT. 5, 1905. W. 0. PREM?.

GAR TRUQK. APPLICATION FILED MAY19, 1905.

2 SHEETS-SHEET 2.

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CAR-TRUCK.

Specification of Letters Patent.

Patented Sept. 5, 1905.

Application filed May 19, 1905. Serial No. 261,142.

To (all whom t may concern:

Be it known that I, IVILLIAM OSCAR FREET, a citizen of the United States, and a resident of Hackensack, in the county of Berg'en and State of New Jersey, have invented certain new and useful Improvements in Car-Trucks, of which the following is a specification.

The invention relates to improvements in car-trucks; and it consists in the novel features and combinations of parts hereinafter described, and particularly pointed out in the claims.

My invention pertains more particularly to improvements in freight-car trucks of the diamond pattern, and its object is to provide a more efhcient and durable construction and arrangement of the bolster and its cooperating parts located at the center of the side frames, one specific purpose of the present invention being to provide a bolster comprising' connected flanged beams supported upon springs located at the center of the side frames and having their lower flanges extended toward one another and intact from end to end of the bolster, the spring-support constitutinga part of my invention being' so constructed and arranged that the lower flanges of the beams of the bolster are not c ut away where said bolster enters the side frames, but are left intact, wherebythebolsterisverymuchstrengthened, and the end portions of the lower flanges of the bolster and the flanges of the spring-supports adjacent to the same may cooperate and the entire structure rendered more efiicient, durable, and satisfactory.

The invention will be fully understood from the detailed description hereinafter presented, reference being had to the accompanying drawings, in which- Figure 1 is a side elevation, partly in section, of a car-truck constructed in accordance with and embodying' the invention, the sectional portion being cut on the dotted line 1 1 of Fig'. 3. Fig. 2 is a top view; partly broken away and partly in section, of same, the section being on the dotted line 2 2 of Fig. 3 and the spring's and upper arch-bar being omitted. Fig'. 3 is a central vertical section through one half of the truck frame and bolster on the dotted line 3 3of Fig. 2, a portion of the structure being shown in side elevation. Fig. 4 is a detached top view of the bolster, one-half of the latter being' shown in horizontal section on the dotted line 4 4 of Fig. Fig'. 5 is a detached side elevation of the bolster with one-half' thereof shown in central vertical longitudinal section on the dotted line 5 of' Fig. 4. Fig. 6 is a central vertical transverse section through the bolster and centerbearing-plate. Fig. 7 isa detached end view of the bolster; and Fig. 8 is an enlarged side elevation of the central portion of one side frame of' the truck with the bolster, springs, and other cooperating' parts in position.

In the drawings, 10 designates the upper arch-bar, 11 the lower arch-bar, and 12 the tiebar, of the side frames of the truck, said side frames being' duplicates of each other and provided with suitable means for receiving the axle-boxes, as usual.

The side frames of the truck are connected by a suitable beam or sand-plank 14, which in the present instance is in the 'form of a channelbeam having its flanges extended upwardly and riveted to ears 15, formed on the column-posts 16, Figs. Q and 8, the web of said sand-plank 14 being seated upon the lower arch-bars 11 and said sand-plank at its ends projecting beyond the outer vertical plane of the side frames. The column-posts 16 extend vertically, as usual, at opposite sides of the center of' each side frame and intermediate the upper and lower arch-bars, and they at their upper and lower ends eng'age said bars, to which they are secured by means of the column-bolts 1T. I do not limit my invention in every instance to the employment of a sand-plank formedof' an integral channel-beam; but I recommend that such beam be made use of, and in my employment of the said beam I provide the column-posts 16 with recesses 18 to receive the vertical lianges of said sand-plank, as shown in Fig'. 8, so that said flanges may not in the use of the truck interfere with the vertical movement of the bolster, which is slightly narrower than the sand-plank.

The bolster is composed of corresponding' flanged beams 19 19, which are parallel with eachother and have their upper and lower flanges extended inwardly toward one another, the said beams being preferably commercial rolled channels. The beams 19 are connected at their top by a plate 2O and at their interior by plates 21, extending' transversely between the beams 19 and having' their ends riveted thereto, there preferably being two of the plates Q1 employed, one adjacent to each end of the bolster. At the center of the bolster I provide between the beams 19a bracing plate or section Q4, which is riveted to the webs of IOO IIO

the beams 19 and comprises a horizontal member 22 and upwardly-converging side members 23, whose upper portions pass upwardly between the upper flanges of the beams 19 and afford a seat for the central portion of the plate 2O and center bearing-plate 25. The plate 2O is riveted upon the upper flanges of the beams 19, and upon this plate is securely riveted the center bearing-plate 25, which is formed with side flanges or gibs 26, Figs. 4 and 6, to pass downwardly over the upper side edges of the beams'19, as shown. rIhe beams 19 are also connected at their top by the side bearings 27, which are not of unusual construction. At opposite sides of their end portions the beams 19 are provided with the vertical stop-bars 28, `which when the bolster is in position in the car-truck lie at the outer sides of the column-posts 16.

One feature of my invention resides in providing a bolster which may be constructed of iianged side beams connected together and having their flanges extended inwardly toward one another and intact from end to end of the bolster and in obviating the necessity of removing from the beams the lower fianges at the ends of the bolster to accommodate the springs and their seats and permit the bolster to have its proper vertical movement between the column-posts or the guides 16. Upon the opposite ends of the connecting-beam or sandplank 14 I secure the seats 29 for the coiled springs 30, these seats 29 being of special form and configuration and comprising a central member, which receives the sec uring-bolts 31, and an upper horizontal member 32, which extends beyond the vertical sides of said central member, whereby flanges `33 are formed and said upper member is given adequate breadth to afford a seat for the coiled springs 30. The seats 29 for the lower ends of the springs 30 extend laterally in both directions beyond the edges of the side frames, and the flanges 33 of said seats are, as shown in Fig. 8, over the lower flanges of the bolster-beams 19 and extend out nearly to the webs of the latter, the lower surfaces of said flanges 33 being preferably inclined downwardly and inwardly to correspond with the outline of the upper surfaces of said lower flanges on the beams 19. An important feature of the construction of the lower spring-seats is that said seats permit the lower fianges of the beams 19 to extend inwardly toward each other and to the full extent of their area below said seats, the bolster being enabled to have its usual vertical movement and also to have the lower flanges on its beams intact to the ends of the bolster.

Intermediate the upper portions of the beams 19 at each end of the bolster is provided an Lipper bearing-block 34, which is in the form of a hollow casting having suitable webs and riveted to the webs and upper flanges of said beams 19, as shown. rIhe springs 30 are usually employed in sets, and in the present instance said springs are confined between the upper bearing-blocks 34 'and lower spring-seats 29, where said springs take the load and initially hold the bolster in its Lipper position, (shown in Fig. 8,) the lower flanges of the beams 19 being under such condition in close relation to the lower surfaces of the flanges 33 of the lower springseats. The bolster may yield vertically in a proper manner and is guided in its movements by the column-posts 16 and also in the present instance by the inner edges of the lower flanges of the beams 19 and vertical outer surfaces of the central member of the lower spring-seats 29, which, as shown in Fig. 8, are adjacent to the facing edges of said flanges. The bolster may also have a limited movement transversely of the truck, as usual.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a car-truck having side frames and connecting-beam, the bolster comprising connected flanged beams, seats for the springs, and upper bearings f or said springs, the lower flanges on the bolster-beams being extended inwardly toward each other and continued through the side frames, and said seats having portions extending above said lower flanges; substantially as set forth.

2. In a car-truck having side frames and connecting beam, the bolster comprising flanged beams, seats for the springs, upper bearings for the springs secured to said bolster below the upper flanges thereof, the flanges of the bolster-beams being extended inwardly toward one another and continued through the side frames, and said seats having portions extending above the lower flanges of said bolster-beams; substantially as set forth.

IOO

3. In a car-truck having side frames and connecting-beam, the bolster comprising connected flanged beams, seats for the springs and each comprising a central portion and a' broader upper horizontal portion forming flanges at its edges, and upper bearings for the springs secured to said bolster below the upper flanges thereof, the lower flanges on the bolster-beams being continued through the side frames and passing below said flanges on said seats; substantially as set forth.

4. In a car-truck having side frames, flanged connecting-beam and column-posts recessed to receive the flanges of said beam, the bolster comprising connected flanged beams, seats for the springs, and upper bearings for said springs, said bolster being narrower than said connecting-beam, and the lower flanges on said bolster-beams being continued through the side frames and passing below portions of said seats; substantially as set forth.

5. In a car-truck having side frames, flanged connecting-beam and column-posts recessed to receive the flanges of said beam and provided with ears to which said flanges are riveted, the holstei` comprising connected flanged Signed at New Yoi'k city, in the county and beams` seats for the springs, and upper bezu- State of New York, this 18th day of May, IO ings for said springs, said bolster being nar- A. D. 1905.

rower than said connecting-beam, and the y 5 lowei` flanges on seid bolster-beams beingcon- VILLIAM OCAR FREET' tinued through the side frames and passing' Witnesses: below portions of said seats; substantially as GHAs. C. GILL,

set forth. ARTHUR h'IARIoN.

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