US1555330A - Locomotive - Google Patents

Description

Sept 29, 1925.

L. G. TAND"! LOCOMOTIVE Filed May 18, 1923 I5 Sheets-Sheet iNVE/VTOR A TTOR NEYH Lei m fiew ge ZZZ/263v.

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i... G. TANDY LOCOMOTIVE Filed May 18, 1923 3 Sheets-Sheet I IN VEN 1 U L (214/45 Geo/ a YZzndy. BY

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LOCOMOTIVE Filed May 18, 1923 3 Sheets-Sheet INVENTOR Lama; George Tazugy. BY

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Be it known that I,-Lnw1s Gnonon TANDY, a citizen of the United States, residing at New York in the countyof New York and or State of Ilew'York; have invented certain new and useful Improvements in Locomotives,"of which the tion; I .This invention relates to locomotives and railway vehicles and has special "reference to weight-transmitting bearer devices, the

' invention bein particularly useful in conneetion with ocomotives havin a main -f rame primarily su 'po the ocomotive' 1| boiler, and asupplbmgiifi frame, articulated to-and extendin rearwardly of. the t he boiler or fire box and adapted to transmit pulling and bufilng One of the primary objects of my invention is to provide an arrangement for trans mitting weight which permits relative movementof the articulated frame with respect to the fire box' end .of the boiler durin 2o curving, offering resistance to'such latera motion for. centering purposes, and for providing lateral stability to prevent vibrating, and compensating for the difference in the longitudinal expansion of the boiler with respect to the articulated frame.

More specificall my invention contemlates a combined. earer ahfd lateral mgtioxi evice, making provision or ongitu ina expansion ott e boiler. In addition, my invention has to do with certain novel features and details of con- ,structiqn hereinafter more fully pointed out.

The tfore oing together with such other objectsias may hereinafter appear, or are incident to my invention, I'obtain by means of a construction which I have illustrated in preferred form in the accompanying drawings, wherein:

Fig.1 1s a diagrammatic side elevation of a locomotive illustrating the application of m improvements; 2 is a fragmentary rear end elevation of fig. 1, drawn on an enlarged scale to more clearly illustrate the parts; Fig. 3 is a horizontal section through a ollowing is a specifica-- detail of'my improvements drawn on an enlarged scale, the section being taken on" the line -3 -3 of Fig. 4; and a Fig. 4 is an end elevation of Fig. 3. I Referrin now tothe drawings, and par- 65 ticularly F1g. 1, the reference letter A desi nates the boiler of the locomotive, suc boiler having the usual fire box 7 and cab 8 it bein understood for the pur see of this spec' cation that the'term boil generally includes the superstructure of a locomotive. At the front end, the boiler is rigidly attached'to the usual cylinder or saddle castings 9, the cylinder and saddle castings. inturnbeing secured to the main frame 10 carrying the drivers 11. The. boiler, at spacedintervals, supported on the main frame by means of the expansion bearers 12 which rmit the boiler to expand longitudinally re ative-to the main frame. .70 The forward end of the fire box 7 is similarly supported by an expansion bearer 13. In the particular locomotive shown, the main frame terminates, at the rear, at a. point approximately in the plane of the juncture '16 between the boilerproper and the fire box, and articulated to this main frame and extending rearwardly thereof is a su plemental frame 14 which extends beneat the.

- fire box 7 and isprovided with two. axles,

15 and 16 having wheels, 17 and 18. The

side members of. the supplemental frame, as will be clear on inspection of Fig 2, are in a plane outside the plane of the wheels 17 and 18, and at the rear, the supplemental frame is provided. witha foot plate 19 for draft connection with the tender, not shown. It is to be understood that my invention, while particularly useful in connection with this form of supplemental articulated frame, 00 may be useful in connection with other forms of trailing frames.

Attention is now directed to the bearer device for transmitting weight to the articulated frame. The bearer includes what may 9 be termed a main -member B extending transversely of the fire box and the su piemental frame and having at its ends ousing portions'20,'flanged, as at 21, for at-- tachment to an adjacent part of he fire box,

- such for example, as to the castings 22 which in turn are secured to the mud ring 23 of the fire box. The housing portions are boxlike in character, open at the bottom. With- .in each housing is a'box-like member 24 in place. By virtue of this arrangement there is a floating relation between the main memberof the bearer and the boxes. One of the purposes of this construction is that, as expansion of the boiler takes place when the locomotiveis fired up, the main member of the bearer is free to move toward the rear.

The rollers or rockers 25 are tangent tothe circle described by the articulated frame when it swings laterally about its [pivot point 28 in the main frame, asa center. These rockers are designed so as to offer resistance to lateral motion during curving and they .rest upon the upper faces of the side members of the articulated frame, as

will be clear on inspection of Fig. 2.

The weight carried by the art-iculated\ frame is transmitted from the main member of the bearer to the boxes 24 by means of the links or keys 29, the ends of which are rounded and seated in the socket- like seats 30 and 31 respectively formed on the housings and the boxes 24.

It will be observed that when lateral or swinging motion of the articulated frame takes place, the rolling movement of the rockers results in a displacement of the boxes 24 longitudinally of the locomotive by the difference between the straight line tangent and are. This displacement must occur freely, that is, without undue friction, and the link construction permits the boxes to adjust their position readily as lateral motion takes place. Thus, during curving, the boxes float with respect to' the main memberjandon expansion of the boiler, the main member is free to float or shift with respect to thehoxes.

The links will not fall off for, although the sockets or seats 31 are'opcn at one side,

and that portion of the boiler supported thereby permitting relative lateral movement of the articulated frame and compensatin for expansionof the boiler longitudinal y therebf.

2.In a locomotive, the combination of a main frame, a boiler rigidly supported toward one end on the frame, expansion bearers for the boiler, a frame articulated to the main frame and carrying part of the weight of the boiler, and expansion bearer means between such articulated frame and the boiler.

'3. In a locomotive, the combination'of a.

main frame, a boiler rigidly supported toward one end on the frame, expansion bearers' for the boiler, a frame articulated to the main frame and carrying part of the weight of the boiler, and expansion bearer the boiler, said articulated frame having lateral movement relative to the boiler.

4. In a locomotive, the combination of. a

means between such articulated frame and main frame, a boiler primarily supported frame. and sup'portipg'part of the wei ht of the boiler, and a combined expansionarer and lateral motion resistingIdevioe'between the boiler'and the articulatedframe.

5. A weight transmittingbearer device for railway vehiclesr'includinga housingf a box therein having relative movement 0 thereby, a frame articulated to the main' translation with respect thereto, and latera'l motion re'sisting'means iirriedby the- 6. A weight transmitting bearer. device for railway vehicles in'cluding'a housing, a box therein' having relative movement "of translation with respect thereto, and a lateral motion resisting rocker carried by the box.

7-. A weight transmitting bearerdevice for railway vehicles including a housing, a box therein' having relative movement-of translation with respect thereto, and a centering rocker carried by the-box.

8. A weight transmitting bearer device for railway vehicles including a housing, and a lateral motion permitting means carried thereby with capacity for mdvementin a direction generally transverse the line of lateral movement.

9. A weight transmitting bearer device for railway vehicles including a housing, a box therein having relative movement of translation with respect thereto, and a weight transmitting liiik between housing and box.

10. A weight transmitting bearer device for railway vehicles including a housing, a'

box therein having relative movement of translation with respectthercto, and a weight transmitting link between housing and box, together with lateral motion means carried by the box.

11. A weight transmitting bearer device for railway vehicles including two members,

one of which is floating relative to the other, rocker to move in a substantially straight and lateral motion resisting means carried line as the truck swings. v by one of the members. i 14. A Weight transmitting bearer device 12. A weight transmitting bearer device for railway vehicles including a housing 15 e for railway vehicles including a main memmeans and a lateral motion -means carried her, a, pair of spaced members having that thereby, one of said means having capacity ing relation therewith, and a lateral motion for movement in a. direction'generally trans resisting means on each floating member. verse the line of lateral movement.

13. In 2:, centering device for a radial or testimony whereof, I have hereunto 0 w swingin truck, a. rocker set tangent to the mgned y n m are of tnetruck, and means permitting the L GEORGE a

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