US1486989A - Pedestal journal box and process of making the same - Google Patents

Description

March 18, 1924. 1,486,989

I.' A. RANDEL PEDESTAL JOURNAL BOX AND PROCESS OF MAKING THE SAME Filed Nov. 20; 1922 [2? iez tw fya7 A. 11 6272 Patented Mar. 18, 1924.

IVAB A. RANDEL, or onrcaeo, ILLINOIS, ASSIGNOR or own-H L 'ro ILLIAM M.

aYAn'or CHICAGO, ILLINOISp r PEDESTAL JOURNAL BOX AND PROCESS'OF MAKING" THE Application filed. November 20, 1922. Serial No. 602,133.

mit the bodies of the boxes to be made of cast steel or other metal having the required strength, and the pedestal guides to be made of grey iron or like wear-resisting metal.

Attempts have heretofore been made to accomplish this result in a variety of ways. It was once proposed to cast the grey iron guides on the sides of the malleable iron boxes, the connection being made by the molten metal of the guides flowing into pockets in the boxes. But it was found that the vibration produced in service caused the guides to work loose, and even when the looseness did not impair the functioning of the truck, it gave the box a defective sound when struck by the inspectors hammer, which often caused the unnecessary delay and expense incident to cutting out the car. Later, it was proposed to rivet steel guides on the journal boxes, but the rivets elongated and became loose after a very short period of service.

This was followed by an efl'ort in which perforated steel inserts were placed in the journal box moulds and the boxes cast about them. The result was partially successful in so far as fastening the liners in place was concerned, but during the annealing of the castings the inserts lost their hardiness and became of little value. Besides when the flanges became worn they could not be rewhich rsur orricn- Fig. 1 is a side elevation of a journal box made according to the invention,

Fig. 2 is a transverse section taken on the line 12- 2 of Fig. 3,

Fig. 3 is a longitudinal sectiontaken in a horizontal plane through the journal box and showing in addition one horn of the pedestal in place in the'guides, and

Fig. 4: is'a sectional view illustrating the relative positions of the body of a journal box, a mould and grey iron flanges cast in the mold and against the side of the journal In the drawings, the reference numeral 10 indicates generally the body of a journal box which may be made in any suitable manner but isprefera-bly of cast steel. details of the journal box are, for the most part, immaterial to the invention, the principal change being that instead of forming pedestal guides integral therewith, the sides of the box are equipped with laterally extending flanges 1112-13 and 14. Prefer-. ably these flanges are perforated as indicated at 15-16-17 and 18.

A journal box body thus formed is suitably supported and a mould 19 (Fig. 4) is applied to each side. According to the pre: ferred procedure this mould is made of the 7 same materialv as is commonly used for cores. The body of the journal box is provided with suitable surfaces along the areas indicated by 20 and 21 to make a close fit'with this mould so as to prevent the formation of fins. Grey iron, in a molten condition, is poured into the mould against the body of the box and flows through the perforations 15-1617 and 18, forming the guides 22 and 23 substantially as illustrated. If. the body of the journal box is atordinary temperature when the molten iron is poured into the mould, the shrinkage 'of the iron will cause the guides to grip the flanges 11-42- 13. and 14 and fasten themselves thereto with practically the same rigidity as if they were integral with the flange. Each of the guides provides wear resisting metal about the, flanges and along the outside of the journal box between the flanges of each pair. This enables the box to present to the horns of the pedestal metal that will withstand the wear due to the practically constant motion that occurs in service.

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lVhen the guides do become Worn, after a considerable period, they can be knocked off with a sledge or machined or chipped away and new guides cast on the boxes. In this Way the life of the journal boxes can be greatly extended and the cost of maintenance in this respect correspondingly reduced.

While it is preferred to use a mould of the form illustrated 19,- it is, of course, Within thescope of the invention to place the journal box in any suitable form of mould and cast the guides thereon.

It is particularly advantageous to perforate the flanges and let the metal forming the guides pass through these perforations and bind the opposite Wings closely to the sides of the flanges.

These cross connectii'ig pieces not only serve as tastening's, but due to the shrinkage of the metal, they draw the side portions into intimate contact With the side face of the flanges.

I claim as my invention:

1. In a journal box, the combination of a body portion having perforated flanges and nesaeee guide'scast about said flanges with the metal extending through said perforations.

2. In a journal box, the combination of a body portion, laterally extending flanges on the sides of the body portion and having recesses therein and guides of Wear-resisting metal cast about said flanges.

3. In a journal box, the combination of a body portion, flanges arranged in pairs and extending laterally from the sides of the body portion and guides of Wear-resisting metal cast about said flanges and extending along the body portion between the flanges of each pair. 7

4. The process'of making journal boxes Which consist in forming a journal box body with perforated flanges thereon and casting guides against the sides of the journal box and about said flanges.

5. The process of making journal boxes which consists in forming a journal box With laterally projecting flanges and casting guides about the flanges and extending along the' box between the flanges.

IVAR A. RANDEL.

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