US1724798A - Truck pedestal - Google Patents

Description

Patented Aug. 13, 1929.

UNITED STATES PATENT OFFICE.

FREDERICK W. HANKINS, F PHILADELPHIA, AND CHARLES D. YOUNG, OF WAYNE, PENNSYLVANIA.

TRUCK PEDESTAL.

Application file-:1 July 7, 1928.

This invention relates to railway car trucks and more particularly to the construction of the pedestals secured to the wheel pieces or side frames of such trucks.

It is a general object of the present invention to provide a novel and improved pedestal construction and assembly for use on railway trucks.

More particularly, it is an object of the invention to provide in a railway truck pedestal a pedestal leg slotted for its full length to allow the insertion of an equallzer together with a novel pedestal strap provided with a spacer or reinforcing member for the slotted leg.

One of the features of the invention comprises the arrangement of a pedestal liner to be engaged between the bottom of a slotted pedestal leg and the pedestal strap and having means thereon to engage with the end of the strap to retain the liner in position.

Other and further features and objects of the invention will be more apparent to those skilled in the art upon a considera tion of the accompanying drawings and following specification, wherein is disclosed a single exemplary embodiment of the invention with the understanding, however, that such changes may be made therein as fall within the scope of the appended claims without departing from the spirit of the invention. 7

In said drawings:

Figure 1 is a side elevation of the end portion of a side frame or wheel piece of a railway truck showing a pedestal and the end of an equalizer bar adapted to rest. on top of the journal box carried in the pedestal jaw;

, Figure 2 is a transverse vertical section on the line 22 of Fig. 1; V

Figure 3 is a partial view similar to Fig. 1, but showing the liner in longitudinal section and with one branch of the pedestal leg removed;

Figure 4 is a horizontal section on line H of Fig.3; and

Figure 5 is a perspective view of the lower end of a liner.

In a large number of four-wheel railway trucks'it is customary to arrange equalizers with their opposite ends resting on the journal boxes at each side of the truck. The wheel pieces or side frames which support the car body through the body bolster are Serial No. 291,942.

supported from the equalizers by springs (not shown). These side frames are pro vided with pedestals to position and guide the journal boxes while allowing them vertlcal movement. This type of construction is well known. The six-wheel trucks often have a somewhat similar arrangement, using two equalizers to a side, however. In both cases itvis difficult to introduce the equalizers through the slots provided for the same in one leg of each pedestal. The present invention contemplates opening this slot from top to bottom of one of the customary slotted legs for each equalizer. The equalizer can then be applied by inserting pne end into the short incomplete slot and lifting the other end through the complete slotjust described. This materially simplifies the assembly operation, but tends to also weaken the pedestal, for the branches of the slotted leg are not secured together. The present invention provides on the customary pedestal strap or tie bar a projection to extend between the arms or branches of the slotted pedestal leg and to receive a transverse securing means passing through these branches. This project-ion acts as a spacer or reinforcing member and the securing means which holds it in position also retains the pedestal strap in place.

Referring to the drawings, there is shown at a side frame or wheel piece of a railway truck. In this particular embodiment the pedestal 11 is cast integral therewith and is of hollow box-like construction as are the members of the side frame or wheel piece. The pedestal has the legs v 12 and 13. In the four-wheel truck the leg 12 would be closed, i. e., would not have a slot to allow the insertion of an equalizer between the two sides of the leg. The inner face thereof, or the one which would normally engage the journal box, is solid in the leg 12. The leg 13, however, is slotted as shown at 15 in Figures 2 and 4 so that it is divided into the two side branches 16 and 17 open from the junction 18 of the leg with the frame clear to the bottom so that the equalizer 19 may have its end merely lifted into the position shown in Figure 1 between the branches 16 and 17, which act as guides to prevent lateral movement of the equalizer. Suitable reinforcing ribs 21 are provided on the outside of each branch of the leg and those 22 and 23'on the inside. As shown in Fig. 2,

' strap and through the base or foot 28 of the jaw while the hooked end 29 of the strap engages the end of this foot to assist the bolt in preventing any spreading of the jaw.

The opposite end of the strap, which in its main portion has a rectangular cross section of the width of the bases of the legs, passes beneath the portions and has the reduced upstanding portion 30 which passes between the portions 25. it has at its upper end the relatively heavy and wider sleeve 31 the ends 32 of which engage against the inner surfaces of the branches of the leg 13 shown in Figs. 2 and l. A bolt 2a passes through suitable openings in the branches and through the bore of the sleeve 31 and retains the sleeve in position. This sleeve acts as a spacer and reinforcing means to hold the branches of the leg spaced in position and at the same time the bolt 3a acts to prevent relative spreading of the two legs of the aw. It is assisted in this by the sleeve abutting the ribs 23 as shown in Fig. 1. Beneath the vertical extension the wide portion of the strap terminates in the rounded ends 36 as shown in Figs. 1 and 3.

It is desirable that the movement of the box in the pedestal shall not wear directly on the pedestal legs, so suitable liners, preferably of hardened steel or similar material, are arr nged to protect the inner faces of the jaws. On the leg 12 this liner takes the form of a sheet having the section 37 resting against the inner face of the jaw and arrangedto take the wear of the box. Wings 38 engage the sides of the leg to prevent lateral movement of the liner in respect to the jaw and to take the lateralthrust of the box. A tongue 40 projects at right angles to the part 87 and beneath the base 28 of the leg and between it and the strap shown. This tongue is perforated to allow for the passage of the bolt 27. The tightening of this bolt clamps the tongue in position and the en: gagement of the bolt with the sides of the holein the tongue prevents any longitudinal or lateral movement of the liner.

' The liner l1 onthe slotted le is somewhat similar in construction to that on the other leg, but its face 42 must be slotted near the top to allow for movement of the equalizer,

it being understood that the liner is applied after the equalizer is in position. 7 The liner 41 has wings as in the one just described, and a somewhat similar tongue 43 which is best shown in Fig. 5. The end of the tongue is slotted as at at toprovidethe arms 45. The portion 13 together with the arms is received between the bases 25 of the branches of the leg and the strap 26, but since the bolt 34 is horizontal instead of vertical, the clamping action here cannot be relied upon to retain theliner in position. The arms 45 therefore engage opposite edges of the extension 30 on the strap to prevent lateral movement of the liner. The ends ofthese arms are turned down as at 47 so that they engage around the curved end portions 86 of the strap, thereby preventing any longitudinal movement of the strap in the direction of the opposite pedestal leg.

By making the spacer integral with the pedestal strap, a material reduction in the cost of manufacture and in the operation of assembly is efiected and by arranging the liner to cooperate with the strap and spacer, no added means are necessary to retain it in position and the operation of assembly is eX- tremely simple. At the same time, the construction is j ustas efi ective as those of much more complicated arrangements and the cost of manufacture is materially reduced.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is: 1. In a car truck, in combination, a side frame having a pedestal, one leg of said pedestal being slotted from top to bottom to permit the insertion of an equalizer, a pedestal strap, means on said strap to fit between the branches of said slotted leg, a liner for said slotted leg and means thereon adapted to be engaged between said strap and the slotted leg to retain the same in position.

2. In a car truck, in combination, a side frame having av pedestal, one leg of said pedestal being divided into two lateral branches by a slot permitting the insertion of an equalizer, a pedestal strap extending beneath said legs, means on said strap to fit between said branches, a liner for said branched leg and means thereon to straddle said means on said strap to retain the liner in position when the strap is mounted on said pedestal legs,

3. In a car truck, in combination, a side "rame having a pedestal, one leg of said pedestal being divided'into two lateral branches by a slot permitting the insertion of an equalizer, a pedestal strap extending beneath said legs, means projecting up from said strap and secured between said branches, a liner for said branched leg, and arms on said liner to straddle said means and fit between the leg branches and said strap. v 1 In a car truck, in combination, a side frame having a pedestal, one leg of said pedestal being divided into two lateral branches by a slot permitting the insertion of an equalizer, a pedestal strap extending beneath said legs, means projecting up from said strap straddle said means and fit between and secured between said branches, a liner for said branched leg, arms on said liner to the leg branches and said strap, and means on said liner arms to engage said strap to prevent movement of said liner toward said other pedestal leg.

5. In a car truck, in combination, a side frame having a estal being divided into two lateral branches by a slot permitting the insertion of an equaliZer, a pedestal strap extending beneath said legs, means narrower than said strap projecting up therefrom between said branches and secured there, a liner covering the wearing faces of said branches and having a ton ue engaged between said strap and the bottom of said branches, said tongue being slotted to provide arms straddling said projection on said strap.

6. In a car truck, in combination, a side frame having a pedestal, one leg of said pedestal being divided into two lateral branches by a slot permitting the insertion of an equalizer, a pedestal strap extending beneath said legs, means narrower than said strap projecting up therefrom between said branches and secured there, a liner covering the wearing faces of said branches and having a tongue engaged between said strap and the bottom of said branches, said tongue being slotted to provide arms straddling said propedestal, one leg of said pedthe ends of said arms engage the end of said jection on said strap, being turned down to strap.

7. In a car truck, in combination, a side frame having a pedestal, legs on said pedestal, one leg thereof being divided into two lateral branches by a slot permitting the insertion of an equalizer, bases on said pedestal legs, a pedestal strap adapted to fit beneath said bases, a projection on said strap extending between said branches to reinforce the same, a liner for said slotted leg and means thereon clamped between said leg and strap to maintain said liner in position.

8. In a car truck, in combination, a side frame having a pedestal, one leg of said pedestal being divided into two lateral branches by a slot permitting the insertion of an equalizer, a pedestal strap extending beneath said legs, means narrower than said strap projecting up therefrom between said branches and secured there, a liner covering the wearing faces of said branches and having a tongue engaged between said strap and the bottom of said branches, a liner for said other leg and having a tongue engagedbetween said strap and the bottom of that leg, and means to secure the strap to each leg.

In testimony whereof we hereunto aflix our si natures.

FREDERICK WV. HANKINS. CHARLES D. YOUNG.

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