US70875A - Improved eailway supeesteuotuee - Google Patents

Description

nitth tetra it m: ffitt.

J. AUDLEY MAXWELL, OF SAVANNAH, GEORGIA. Letters Patent No. 70,875, dated November 12, 1867.

IMPROVED RAILWAY SUPERSTRUOTURE.

an stimuli were tn in time Esters fitted mm hinting artar tlgt smut,

TO ALL WHOM IT MAY CONCERN: I

Be it known that I, J. A. MAXWELL, of Savannah, in the county of Chatham, and State of Georgia, have invented a new and useful improvement in Railway Superstructures and I do hereby declare that the following is a full, clear, and exact description-thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming-part of this specification.

This invention relates to an improvement in railroad: superstructure, and consists in a combination of the cross-tie and stringer'systems of laying the rails, whereby the advantages of both are secured. In the accompanying drawings I I i Figure 1 is a top view of my improved railroad superstructure.

Figure 2, a cross-section thereof at line a: at.

Figure 3, an end view of the joint with end of stringer resting in place.

Similar letters of reference indicate corresponding parts.

A A A is the joint-tic, inverted T-shaped, and'I prefer making the bottom width three times the width of each of the three top surfaces, which may all be made of equal width, butthese proportions may be varied. 'B B are other cross-ties, C C string pieces, the ends whereof rest upon the upper surface of the bottom part of the joint-tie A, the top surface being flush with the topmost surface of the joint-tie. I prefer to place the joint J of the rail R in the middle of the joint-tie A, that is, overlapping the ends of the stringer C, in which case the chair H, made wider than the top of the joint-tie, will overlap the end of the stringer, protecting the joint from the rain, and with the iron knees K keeping the stringer in place. The knees are confined upon the ties by spikes, but I prefer that they should not'be spiked to the stringer 0, against which the vertical surfaces of the knees are made to press tightly, or the knees may be dispensed with on the intermediate ties BB, in which case the stringer will be pinned to them in the usual manner. The iron rails may also be made to meet at the middle instead of overlapping the ends of the stringers, the chair being removed to the joint, and the-rail at its centre pinned to the joint-tie by spikes in the usual manner. I

What I claim as new, and desire to secure by Letters Patent, is- In the construction and arrangement 0f the superstructure of railroads, the combination of the tics A and B, string pieces 0, chair H, and knees K, in the manner and for the purpose herein described.

The above specification of my invention signed by me this fourth day of March, 1867.

' I J. A. MAXWELL. Witnesses:

Lawnnncn J. OONNELL, L.,H. BRYANT,

Images