US1407778A - Noiseless railroad crossing - Google Patents

Description

F. P. YEOMANS.

NOISELESS RAILROAD CROSSING. APPlicATxoN FILED ocT. 29. 1921.

1,407,778 Patented Feb. 1922.

2 SHEETS-SHEET I.

F. P. YEOMANS.

NolsELEss RAILROAD CROSSING.

APPLICATION FILED OCT. 29| 1921.

Patented Feb. 28, 1922.

2 SHEETS-SHEET 2.

35% kmp L.

UNITED kS'TATES PATENT QEFIQE.

NOSELESS RAILROAD GROSSING.

Specification of Letters Patent.

rat-euren Feb. es, 1922.

Application filed October 29, 1921. -Seria1 No. 511,306.

To all whom t may concern.'

Be it known that I, FRAN ii inrirnnr Yeo- MANS, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented certain new and useful Improrei'nents in Noiseless Railroad Crossings, ot which the following is a specification.

rlhis invention relates to improvements in railroad crossings, and more particularly to that type oit crossing known as a continuous rai] crossing or noiseless crossing.

A n object of the invention is to provide a suitable railroad crossing which will entirely eliminate the noise that iscustoinarily heard in the usual type ot crossings. i

Another obj ect ofthe invention is to provide a railroad crossing which will not only noiseless, but will also be so constructed as to make a derailment impossible.

fk 'further object is to provide a railroad crossing which will be noiseless. and will also be automatic in operation,` being` operated by the trains as they come from either direction. i

still further object is to provide a suitable noiseless railroad crossing, which will be e'IHcient in operation and inexpensive to manufacture.ly

Other objects will appear as the description proceeds. Y

In the accompanying drawings which form a part ot my application:

Figure 1 is a planjview oil my improved noiseless railroad crossing withy the L-shaped inner rails.

Figure 2 is a sectional view line 2-2 of Figure 1.

Figure 3 is a detail view of the slotted guard rails which are positioned between the main crossing rails.

Figure 4C is a pla-n View of the crossing with straight inner rails instead of L-shaped rails, and

Figure 5 is a sectional view taken on the line 5-5 of Fig. t.

Like characters of reference are used throughout the several views to designate corresponding parts.

The main rails 1 of the crossing are preterahly formed in L-shape, having their adjacent ends welded together, or formed integrally when molded, although they may be composed of separate rails.

The main rails 1 are fastened to the ties taken on the 2. and have a portion of the inner bottoni fiange' or' the rails cut away as at 3. Positioned at either side ot the main rails 1. are the L-shaped innerfrails 4l, in Fig. 1 or straight rails in Fig. el, whose adjacent ends 5 are cut oit diagonallyg'to permit of lateral movement. i

The main rails l and rails a, are separated by the guard rails 6, which are notched as at 7, as best shown in Figure 3. These guard rails G are placed in pairs,l and the rail next to the main rails l is of considerably lighter stock or material than the guard rail adjacent the inner rails.

Extending through the webs of each of the main rails 1, are the slots 8, likewise through the guard rails and inner rails, the several slots being in 'alinement Vto permit the bolts 9 to pass therethrough. These bolts E) are fixed to the web portion ot the inner rails 4, and are adapted to receive the tensioning springs 10 over their tree ends.

which are held in proper positionor adjust# ment, by means of the nuts 11. The outer ends of' the guard rails 6v are bent outward as at 12, adjacent the cut away portion 3 in the main rails 1, sothat the {ianges 15 ot the car wheels 16, will'more readily separate the said guard rails, and,k run or pass there between. f

`The inode of operation of my improved noiseless crossing isa-s rfollows: Assuming that the several parts are intheir proper positions, that is, the'main rails 1 are iixed tothe ties, and the inner rails and guard rails are held adjacent said main rails, by means of the bolts 9 and springs 10. The liange of the wheels will first strike the outwardly dared ends 12 oi the rails V6, which causes the guard rails to spread or separate, thereby permitting the anges of the wheels to ride in between the said guard rails. The inner rails will be forced towards each other, due to the overlapping of their adjacent p0rtions, against the tension of the springs 10 on the bolts 9. The flanges of the wheels will pass through the slots 7 in the guard rails, whether the train is on either track,

and the bases of the wheels willride on the main rails 1 and the adjacent guard rail. As soon 'as the train passes over the crossing, the flanges of the wheels will ride out from between the guard rails, and the tension of the springs 10, will cause the several parts to return to their original position. Inasmuch as there are continuous rails at the crossings, and there are no gaps to bridge,

there will be absolutely no chance or danger of a train becoming' derailed;

lfn practically all railroad crossings in use today, the corners ot' the rails are soon worn oit, and the crossings have to be replaced or repaired, wiereas in my improved crossing, there is always a continuous rail for each wheel, consequently eliminating the wear until it is at its minimum.

tion may be resorted to without departurev from the spirit of the invention.

Having thus described my invention what I claim as new and desire to secure by Letters Patent oi the United Statesis:

l. A noiseless railroad crossing` comprising' a. plurality of Lshaped inner rails interposed between said main rails,'a. plurality of notched guard rails between said main and inner rails`r andresilient means for holding the several parts in operative position.

2. A noiseless railroad crossingcomprisino; a plurality of L-shapedmain-traclr rails7 a plurality of L-shaped inner rails interposed between Asaid main rails7 a plurality of notched guard rails between said main and innerY rails, all of said rails being provided with registering slots, bolts passing through said slots, and meansrcarried by said bolts for adjusting; the tension between the several parts.

3. A noiseless railroad crossing comprising a plurality of L-shaped maintrack rails,

L-shaped e rails interposed therebetween, a plurality ot guard rails7 resilient means 'for holding theeseveral parts in operative position, means for adjusting` the tension of said resilient means, and means for guiding a wheel flange in between said guard rails.

a. A continuous railroad crossing coinprising continuous L-shaped main rails in fixed position, inner rails adjacent said main rails. guard rails disposed between said main and inner rails, and resilient means for holdingr` the same inoperative position.

`5. A continuous and noiseless railroad crossing comprising a plurality of continuous L-shaped main rails` inner rails interposed therebetween, notched guard rails adjacent said main rails, flared ends on alternative guard rails, and adjustable resilient means foi-holdingr the several parts in operative position.

6. continuous and noiseless railroad crossing comprising a plurality of L-shaped main rails laterally adjustable inner rails, laterallyy adjustable tfruard rails interposed betweensaid main and inner rails, all of said rails beingprovided with alined notches, means extending` through said notches for holding the same in position, and resilient means-carried by said last mentionedmeans for tensioning the parts as desire y 7. A continuous and noiseless railroad crossing comprising angular main rails, means for holding said lrails in fixed position, interposed inner rail sections, a guard rail or rails interposed `between said main and inner rails, means for causing lateral movement oi one of said guard railsand the innerv rail when a wheel flange passes on the crossing', and resilient means for retracting the several parts into their original position when the wheelis oil? the crossing,V substantially as described. U

.ln testimony whereofl atiix my signature.

FRANK PLIMLEY YnoMANs.

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