US1157877A - Pedestal construction. - Google Patents

Description

J. A. LAMONT.

PEDESTAL CONSTRUCTION.

APPLICATION mgn JUNE 14. 1915.

1,157,877. Patented 0m. 26, 1915.

III IITE TTn ART FFIE JOHN A. LAMONT, OF CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN STEEL FOUNDRIES, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

PEDESTAL CONSTRUCTION.

Specification of Letters Patent.

Patented Oct. 26, 1915.

Application filed June 14, 1915. Serial No. 33,957.

To all whom it may concern:

Be it known that I, JOHN A. .LAMON'I, a citizen of the United States, and resident of Chicago, in the county of Cook and State of Illinois, have inventedcertain new and useful Improvements in Pedestal Construction, of which the following is a specifica-' tion.

My invention relates to car trucks and has particular reference to a novel pedestal construction.

An object in the construction of the present device is to provide for an efficient pedestal either for use on integral cast steel trucks or trucks of the type in which an integral pedestal is secured to a built-up side frame. In such trucks the journal box is adapted to be held between a pair of opposed jaws, a spring being mounted on the top of the box and supporting a load carried by the side frame. In such constructions the box is adapted for vertical reciprocation as the springs are flexed and considerable wear occurs between the co-acting parts.

object in the present construction is to provide for this wear by utilizing wear plates which are rigidly secured to the integral jaws.

A further object is to provide for the closing of the open lower end of the pedestal jaws, the construction being designed in order to shorten as much as possible the length of the pedestal jaws. because of the provision for the use of short horizontal fastening bolts no portion of which lie in the plane of the journal box. A construction such as shown is likewise adapted for use in connection with pedestals of other types in which there is a tendency to breakages at the upper portions thereof, due to the strains imposed on one jaw and not transmitted to construction the strains are equalized through the tie bar and the length of the jaws is reduced to the smallest amount required for spring action. The use of the wear plates in connection with the recesses for the horizontal bolts makes possible a particularly desirable construction, as will be hereinafter explained.

The invention will be more readily understood by reference to the accompanying drawings, wherein, V

Figure 1 1s a side view of the end of a This result is secured the other jaw. By my car truck constructed in accordance with my invention, and, Fig. 2 is a bottom plan view of the same with the journal box removed.

Referring more particularly to the drawings it will be seen that I provide a side frame 10,.which terminates at its ends in a pedestal consisting of jaws 11, 12. At the lower ends of each of these jaws I provide horizontal apertures 13, which are enlarged and squared as at 14, the recesses 14, being of a size to accommodate a nut 15. These recesses are open to the space between. the jaws, and to the side, as shown in Fig. 2, to permit the insertion of the nuts after the wear plates are riveted in position. As shown, the wear plates 16, are riveted to the inside faces of the jaws and provide for the accommodation of a journal box 17, mounted in the pedestal. 'A spring 18, is located between the top of the journal box and a pocket 19, formed in the side frame. It will be noted that the lower ends of the wear plate 16, close one open side of the recesses 14:, and that no portion of the bolts projects into the space between the jaws.

As a means for closing the open. jaws I provide the tie bar 20, having the upturned ends 21, which ends are apertured to register with the apertures 13, and a bolt 22, is inserted through the tie bar and engages the nut 15, in the recess. After being secured in place a nut lock 23, is applied. This provides a construction which cannot become loose, is certain to transmit the strains from one jaw to the other and provides for renewable wear plates which plates serve also to close one side of the recess inwhich the nut is seated. This result might possibly be secured in another manner but the construction shown permits of the casting of the recesses for the nuts and such recesses being open on two sides, provides for access thereto for cleaning. This is essential as such recesses are intended to accommodate the nuts with but little clearance and the sand must, therefore, be all removed to permit the insertion of the nut.

As noted, considerable saving is effected in that the length of the pedestal jaws is reduced, this being made possible because of the form of connection. The common prac tice heretofore has been to provide a long horizontal bolt, the body of which served to tie together the two jaws, but which. body Copies of this patent may be obtained for obstructed a portion of the space at the lower end of the opening. Short horizontal bolts have likewise been used, but in each case an end of the bolt projected into the space between the jaws thus making a greater length necessary in order to provide for the required clearance for vertical movement of the box.

I claim:

- 1. In a side frame, the combination of pedestal jaws, the lower portion of each of which is provided with a horizontal aperture which is enlarged and squared at one point, a tie bar spanning said jaws, and a.

horizontal bolt securing said tie bar to one of said jaws, an enlarged portion of said bolt occupying the enlarged and squared portion of said-aperture, no portion of said bolt projecting into the space between the jaws, substantially as described.

2. In a side frame, the combination of pedestal jaws, the lower portion of each of which is provided with: a horizontal aperture enlarged to accommodate a nut, a'tie bar spanning said jaws, and a horizontal bolt securing said tie bar to one of said jaws and adapted to engage the nut held in said aperture, no portion of said bolt projecting into the space between the jaws, substantially as described.

3. In a side frame, the combination of pedestal jaws, the lower portions of which are recessed to accommodate a nut, a bolt, wear plates located on the inner faces of said jaws and adapted to close one of the open sides of said recesses within which said nuts are held, a tie bar, and horizontal bolts securing said tie bar in place and engaging said nuts, substantially as described.

4:. In a side frame, the combination of pedestal jaws, the lower portion of each of which is recessed, said recesses being enlarged and squared near the working face of said jaws, a nut held in each of said enlarged recesses, wear plates secured to the inner faces of said pedestal jaws, a tie bar having upturned ends, said ends lying outside of said jaws, and horizontal bolts securing said upturned ends to said jaws and adapted to engage the nuts held in said enlarged recesses, substantially as described.

JOHN A. LAMONT.

Witnesses:

J. T. LYNN, S. C. SHUMAKER.

five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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