USRE3473E - Best available copy - Google Patents

Description

J. L. BOOTH, OF ROCHESTER, NEW YORK.

Letters Patent No. 57,467, dated August 28. 1866-, reissue No. 3,473, dated J'une l, 1869. ,M

IMPROVEMENT IN RAILROAD-RAILS.

Tho Bchonll referred to in than Letton Patent and making part of the lame.

T0 auwhm t may Concern: 1 rollers, which act upon the lips f f, and set them in Be it known that I, J. L. BOOTH, of Rochester, in iirmly against the angles g g, and thus bind the parts the county of Monroe, and State of New York, did inclosely together.

vent a certain new and useful Improvement `in Rail- The cap is preferably, but not necessarily, applied road-Rails; and I do hereby declare that the followhot, in which case the natural shrinkage assists in ing is a full and exact description thereof, reference holding the parts together.

being had to the accompanying drawings, making part By this process of rolling the cap firmly in contact of this specification. with the base, and setting the lips f under the angles Figure 1 is a perspective view of a section of mil, g, I combine the parts so firmly as to t'orm a unit or constructed in my improved manner. whole, by the natural adhesion or contact ol' the metal,

Figure 2, an end elevation oi the body of the rail. so that they cannot become displaced under any ac- Fi ures 3 and 4, views of the cap in the several tion to which they are subjected, but at the same stages of rolling. time, where worn, the cap can be torn oti by artificial Figure 5, a. view showing a modified form of the l means, and the base, which is uuinjured, can be usci rail. i again and again.

Like letters of reference indicate corresponding parts The advantages oi' this arrangement over those at in all the figures. rst mentioned are obvious.

Many attempts have been made to construct a rail l When the tread is welded to the base, the whole with au inferior base, and superior cap or tread, which railmust be thrown away when the thread is torn can be replaced when worn out, without discarding the out. And when the cap is combined with the hase base. loosely by sliding on, the rail is practically useless, One plan has been to use a steelface, welded to an owing to the irregular play of the tread and frequent iron base or body, and rolled with it. The great obbreakage and disarrangement, as has been abundantly jection to this, is that when the superior fsm is worn proved in practice. out, the whole rail must be discarded as useless, as By employing a separate and independent cap, the steel and iron caunotbe separated. rolled closely to the base, so as to adhere thereto, Another plan has been to employ aloose face or cap, form a. unit of the rail, and avoid all these diicnlsliding eudwise on the base, and secured by bolts so ties. as to be removable. The dimculty in this case is that Besides the above advantages, there are others, :is the parts are loose and rattling, are eas' y broken, and follows: do not form, as it were, an integral whole. If either the base or cap should break, and the My invention consists in combining the cap with other part remain entire, the rail would remain intact, the base, by rolling the two partitcgether, alter being by reason of the closeness and tenacity with which separately formed, so as to have a natural adhesion, they hold together; and as they are distinct and inwhich holds as firmly in place, under action, as the dependent parts, it is not probable they would break natural rail, but is still easily torn apart and replaced in the same place. when worn, whereby the same base is made available If a rail with a welded cap or face were to break, it

for continued use. would break at one place; and if a combined rail, In the drawingsloosely connected, were to break, the parts would be A indicates the body or base, an likely to become separated and detached, or atleast d B represents the cap which is applied thereto. so disarm ed as to throw a train from the track. The top or bearing-surface of the body ot the rail The ends of the rail may be hardened to prevent may he formed with several angular planes, a b b, as abrasion ofthe joints. shown in gs. 1 and 2, or with a single one, as in iig. I do not claim simply aud broadly combining a cap 5; or with a convex one, or any other that will answer or tread with a base or y, as the same has been done by welding or rolling in one mass, and also by The cap is tint passed through rollers, so as to make slipping loosely one over the other. it of suitable form to correspond with the contact-sur- Still another plan is to form a shoulder ou each side face, over which it Hts, as shown in g. 3. of the rail, located below the broadest portion of the At this stage, the lips f f, which strike under the head, and extending the whole length of it; then to wedging sides g g, of the hase, to hold the part! in apply, upon and around the head of said rail, a steel place, stand vertically, as otherwise the cap cannot cap of such dimensions, that when folded around the laced dat over the bose, preparatory to being head, its edges hugging the head of the rail, will rest rolled thereto. upon its shoulders.

In this condition, the cap is applied to the top of My invention is an improvement of the last-named the base, and the whole is passed between suitable methodof construction, and consists in dispensing with BEST AVAILABLE Copy the shoulders on the sides of the rail, by virtue of The construction of steel-capped rails, substantially which the steel-cap, as it becomes ilattened and exas herein describedand shown. tended by the action of the trains passing over it, is In witness whereof', I have hereunto signed my name le: free to extend itself downward on each side of in the presence of two subscribing witnesses. the mil, and thus at all times permit to the cap a J. L. BOOTH. rm and solid bearing upon the top surface of the rail, a condition impossible with the shouldered rail Witnesses: above described. R. F. OsGooD,

What I claim as my invention, and desire to secure J. R. Dunn. by Letten Patent, is.-

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