US2085689A - Driving box saddle and spring arrangement for locomotives - Google Patents

Description

June 29, 1937. A. WALLACE ET Al. 2,085,689 A DRIVING BOX SADDLE AND- SPRING A RRANGEMENT FOR LOCQMOTIVES Filed Aug. 25, 1954 Patented .ame` 29, 1937 UNITED STATES maar orner. y

DRIVING BOX SADDLE AND SPRING AR- RANGEMEN'I FOR LOCOMOTIVES Allen Wallace, Moorestown, N. J., and Jesse F.

Holloway, Aldan, Pa.

Application August 25, 1934, Serial No. '741,358

8 Claims.

tion of the load upon the journal box as well as that carried by the twin springs preferably of the semi-elliptic leaf type, although coil springs may be used in some instances if desired. A further object of the invention is to provide an improved saddle that is adapted to effect said equalization and to be suitably guided by the pedestal shoes. In one specic aspect of the invention the foregoing objects are accomplished by providing a '20 saddle having an` improved swivel or arcuate joint in cooperation with the journal box, this joint preferably being of a cylindrical nature or if desired it may be spherical. A more specific object of the invention is toprovide in combination with our improved saddle, means for adequately lubricating the swivel joint between the saddle and journal box.

` Other objects and advantages will be more apparent to those skilled in the art from the following description of the accompanying drawing in which:

Fig. 1 is an enlarged side elevation of the locomotive frame and driving box embodying features of our invention;

Fig. 2 is a vertical transverse section taken on the line 2--2 of Fig. 1;

Fig. 3 is a perspective of the saddle box;

Fig. 4 is a sectional view of a modified form of support between the saddle and journal box.

In the illustrated embodiments of our invention which are shown herein merely for the purpose of Vdisclosing certain speciiic forms among i possible others that the invention might take, We have shown our invention in connection with a twin spring arrangement constituting the joint frame arrangements. However, a frame I as disclosed herein has pedestals 2 while the top 3 of the pedestal opening 4 connects the pedestalsl in the usual manner. A pedestal cap 5 connects the lower ends of the pedestals. Pedestal shoes 6 of any usual or suitable form are adapted to of oil will always be maintained therein.

guide and supporta journal box generally indicated at I which maybe of any desired kind either as to roller bearing or plain bearing to serve as a driving truck box or other purpose. Inasmuch as the details of construction of such 5 boxes are well-known, it is not deemed necessary to describe the same in detail as it will suffice to state that the box is guided by theshoes through usual flanges 8 whereas the top 9 of the box differs from the standard boxes to permit 10 the embodiment of our particular improvement.

It will be observed from Fig. 2 that the top of the box has a concave seat I0 directly beneath the portion 3 of the locomotive frame.

Seated upon the concave surface I il is a saddle l5 generally indicated at EI having as shown in Fig. 2 a substantial flat portion generally indicated at I2, I3, and I4 on the under side of which is formed a 'convex portion I5 for seating in concave surface It. The surfaces I5 and I@ are sub- 20 stantially cylindrical with the axis of the cylinder extending longitudinally of the frame at substantially right angles to the axis of the Wheel axle I6. Projecting upwardly from the at portion I2-I4 are frame flanges II and I8 adapted 25 as shown in Fig. 2 to lie` in relatively close juxtaposition to the sides of the frame portion 3 while shoe lianges I9 and 2li project from opposite ends of the saddle and are suitably supported by ribs 2l and.22. The shoe flanges I9 and 2t engage 30 the pedestal shoes Ei in the same manner as the journal box anges 8; in fact, the flanges I9 and 20 are disposed immediately above the` journal box flanges 8. As a result of the foregoing construction, the saddle is maintained in alignment 35 with the spring, pedestals and the cylindrical concave seat Ill. Spring seats 23 and 24 are adapted to receive spring bands 25 and 26 of twin springs 2l and 23. These springs lie along each side of each frame member as shown more 40 clearly in Fig. 1 and are 'connected to any suitable spring and equalizing system, one specific arrangement of which `is shown in said Glaenzer and Wallace application. Tosuitably lubricate the bearing I3, an oil well 29 is formed between 45 the frame flanges I'I and It. A suitable oil passage 30 allows the lubricant to flow to seat I0 and due to its concave character, a certain level In operation it will be understood that, rela- 50 tively speaking, the saddle Il and twin springs 2l and 28 tend to maintain a definite relation to the locomotive frame, whereas the axles such as It move up and down and tilt and cant, there- 55 by causing the axles to have a variable angular relation to the saddle. In the usual form of saddle arrangements, the saddle would tilt and cant with the axle and journal box, thus twist-V ing the springs and causing the same to rub the locomotive frame. However, in our improved arrangement, the bearing and axle can tilt without such action being transmitted to the saddle, this being due to the curved mating bearing members Ill and l5. 'I'hus'the spring saddle is adapted tol remain in a substantially horizontal position without danger of being tilted due to up and down movement of the axle. Various types of journal boxes may be employed so as to permit tilting `with the axle and Without placing abnormal strain upon the housing flanges 8 and'pedestal shoes 6. In the specific form of journal box disclosed herein which is Vof the roller bearing type, the journal housing proper has trunnions .'-52 journalled in the transverse portion 33 connecting the housing Vflanges 8 on each side of the respective pedestals 2. Y

In the modification shown in Fig. 4, the saddle is provided with a concave seat IG' and the journal housing is provided with a cooperating preferablykcylindrical convexseat I5'. These concav-convex bearing surfaces are lubricated in the same manner as shown in the preferred form.V

From the foregoing disclosure it is seen that I have provided an extremely simple and yethighly effective construction' of elements and combination whereby the twin springs may at all times properly function Without abnormal restraint or limitations being placed thereon whereby a greater flexibility of riding quality together with minimum wear and tear is obtained.

" It will of course be understood that various changes in details of construction and arrange- Yment of parts may be made by those skilled in the art without departing from the spirit of the invention as set forth in the appended claims.

We claimrY 1. A railway vehicle comprising, in combination, a. frame having a pedestal opening,V a journal box disposed therein and having a top portion provided with a curved surface for a seat, a saddle having a mating curved surface supported on said seat, and twin. springs supported on said saddle along each side of said frame, whereby tilting of the journal box is prevented from being transmitted to said springs, said saddle having an oil well from which said curved surfaces are lubricated.

2. A railway vehicle comprising, in combination, a frame having a pedestal opening, a journal box disposed therein and having a top portion `provided with a curved surface for a seat, a

saddle having a mating curved surface supported on said seat, and twin springs supported on said saddle along each sideof said frame, whereby tilting of the journal box is prevented from being transmitted to said springs, said bearing surface which is on top of the journal box being 'concave and the cooperating surface on the saddle being convex, and means forming an oil well in said saddle to supply said concave surface.

3. A railway vehicle comprising, in combination, a frame having a pedestal opening, a journal box disposed therein and having a top portion provided with a curved surface for a seat, a saddle having a mating curved surface supported on said seat, and twin springs supported on said saddle along each side of said frame, whereby tilting of the journal box is prevented from being transmitted to said springs, said springs being provided with spring bands, and said saddle having recessed portions with vertical surrounding walls to receive and hold the spring bands in place.

4. A railway vehicle comprising, in combination, a frame having a pedestal opening, a journal box disposed therein and having a top portion f provided with a curved surface for a seat, a saddle having a mating curved surface supported on said seat and provided with spring receiving recesses, twin springs supported in said recesses of the saddle along each side of said frame whereby tilting of the journal box is prevented from being transmitted to said springs, and laterally spaced upwardly projecting flanges formed with said saddle and disposed between said spring recesses so as to lie closely adjacent to the sides of said frame.

5. A railway vehicle comprising, in combination, a frame having a pedestal opening, a journal box disposed therein and having a top portion provided with a curved surface for a seat, a saddle having a mating curved surface supported on said seat, and twin springs supported on said saddle alongV each side of said frame, whereby tilting of the journal box is prevented from being transmitted to said springs, said bearing surface on the top of the journal box being convex and the cooperating surface on the saddle being concave, and means forming an oil well in said saddle to supply said concave surface.

6. A railway vehicle comprising, in combination, a frame having a pedestal opening, a journal box disposed therein, a saddle pivotally supported on the top of said box and provided with recesses having side walls in each direction, and twin springs supported on said saddle along each side of said frame and provided with spring bands receivable in said recesses engageable with and held against lateral movement by said walls.

7. The combination set forth in claim 6 further characterized in that said saddle has a pair of upwardly projecting flanges disposed between said recesses and closely adjacent to the sides of said frame, and a recess formed in said saddle between said flanges to provide an oil well.

8. The combination set forth in claim 6 further characterized in that the saddle has an elongated central portion in plan View and wing portions projecting laterally therefrom in which said spring band recesses are formed, whereby saidelongated central portion is disposed beneath the frame.

ALLEN WALLACE. JESSE F. HOLLOWAY.

Images