US367746A - Girder-slot-rail crossing - Google Patents

Description

2 Sheets-Sheet 1'.

(No Model.)

B. B. ENTWISLE.

GIRDER SLOT RAIL CROSSING.

. Patented Aug. 2,1887.

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(No Model.) 2 Sheets-Sheet 2.

E. B. ENTWISLE.

, GIRDER'SLOT RAIL CROSSING.

No. 367,746. Pat'ented Aug. 2, 1887.

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UNITED STATES PATENT OFFICE.

EDlVARD B. ENTVISLE, OF JOHNSTOVVN, PENNSYLVANIA, ASSIGNOR TO THE JOHNSON STEEL STREET RAIL COMPANY, OF KENTUCKY.

GlRDER-SLOT-RAIL CROSSING.

SPECIFICATION forming part of Letters Patent No. 367,746, dated August 2, 1887.

Application filed May 28, 1887. Serial No. 239,599.

To all whom it may concern.-

Be it known that I, EDWARD B. EN'rwIsLE, of Johnstown, in the county of Oambria and State of Pennsylvania, have invented a new and useful Girder-SlotRail Crossing, which invention is fully set forth and illustrated in the following specification and accompanying drawings.

The object of this invention is both to ob- :o viate the jar occasioned by such crossings as usually constructed to the wheels of crossing cars, as well as to prevent all wear upon the slot-rails crossed by the flanges of the wheels of crossing cars.

The invention will first be fully described, and then particularly set forth in the claims.

In the accompanying drawings, Figure 1 illustrates in perspective a side-bearing girderrail crossing one form of slot-rail. Fig. 2il1us- 2o trates in perspective a girder-rail crossinganother form of slot-rail. Fig. 3 illustrates an end View, partly in section, one slot-rail being removed, of Fig. 2. Fig. 4 illustrates in perspective a center-hearing girder-rail crossing a thirdform of slot-rail.

In said figures the several parts are indicated by letters of reference, by means of gvhich said parts will now be described, as folows:

In all of said figures the letters 13 illustrate the slot-railcrossed, the exact form of which rail, however, is immaterial, those illustrated in the several figures representing theforms of such rails most used in general practice.

The letters A Aindicate side-bearing rails, F F guard-rails, and J J center hearing girderrails.

The letters D D indicate splicebars angled to fit against the web of a girder-rail and .40 the side of a slot-rail. As each siotrail is beveled, the splice-bars D are angled in two directions. Said splice-bars are secured to the slot-rails by the bolts (Z d. Said bolts may be stud-bolts, but they are preferably, as shown 45 in the drawings, bolts with small and non-obstructive heads on the interior of the slotrails, and their threaded ends are provided with nuts on the outside of the splice-bars.

In Figs. 1 and 4 the side tram and the un (No model.)

der part of the head of each crossing rail are cut away so as to let the head of each crossing rail lap over the slot-rail and come flush with its inner edge, as shown at a a and j 3', respectively. The distance between the ends of thelapping heads of said rails, it will thus be seen, is only equal to the width of the slot between the slot-rails. The webs of the crossing rails are also cut away so as to permit their heads to come into close contact with the slotrails.

In Figs. 2 and 3 the web and a part of the lower portion of the head of the crossing rail is cut away, and a portion of the slot-rail is also cut away. \Vhere the guard-rail is used, it is advisable not to cut the floor K entirely 6 away, as the guard L would then be rendered weak and not well sustained, and as itis at the same time desirable that the head F and guard L be not exposed too much above the slot-rail crossed, the latter is partly cutaway, asshown in Fig. 3 at H H. If said parts he too much exposed, the cable-grip is liable to be caught thereon.

The method ordinarily adopted of crossing slot-rails by the main rails of the track is to 7 cut the main rails oft'square and let the carwheelsjump over the whole width of the slotrails. As said width is generally from four to five inches, the jar on the car and the wear or abrasion made by the car-wheel flanges upon the slot-rail crossed are very considerable in amount; but by the construction herein shown and described, and forming the subject of this invention, theheads of the street-car rails are caused to overlap the slot-rails, and thus the 8 5 car-wheel flanges are prevented from wearing away the slot-rails crossed, and no jar or disagreeable noise is perceptible to the occupants of the car as the car-wheels pass the slot-rails.

It is evident that any suitableforni of splicebar can be substituted for the especial form of splicebar shown, and hereinbefore described.

Having thus fully described n1 y said cross ing, as of my invention I claim- 1. A slot-rail and girder-rail crossing con 5 sisting of main girderrails and slot-rails secured together at the proper angle, and. with the girderrails overlapping the heads of the cut away so as to preserve the floor 0f the guard-rails intact, substantially as and for the IQ purposes set forth.

EDWARD B. ENTWIsLE.

XVit-nesses:

\V. MILT. BROWN, GOMER WAL'rERs.

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