US630748A - Railroad-crossing. - Google Patents

Description

No. 630,748. Patented Aug. 8, I899. D. SCOTT.

RAILROAD CRUSSING.

I IApplicntion filed Feb. 28, 1899.) (No Model.)

, WITNESSES A TTOLWEYS,

UNITED STATES PATENT OFFICE.

DANE SCOT", OF DELPIIOS, OHIO, ASSIGNOR OF ONE-HALF TO PAllL A.

STIPPICH, OF SAME PLACE. l

RAILROAD-CROSSING.

iti

. SPECIFICATION forming. part of Letters Patent No. 630,748, dated August 8 1899.

' Application find February 28,1899. Serial No. 707,203. No model- To. all whom it may concern:

Be itknown that LDANE Scornof Delphos, in the county of Allen and State of Ohio, have invented a new and Improved Railroad-Crossing, of which the following isa full, clear, and exact description. f

The purpose of, this invention is to provide a railway-crossing in which the pounding of the car and engine wheels at the crossing will be avoided; and this end is attained by providing an additional or inside rail running with the main rails, and. forming guideways in which are situated sliding blocks mounted on mechanism to raise and lower the blocks, so that as the train passes the crossing the blocks may he raised to fill the spaces between therails, and thus provide an additional bearing-surface over which the treads of the wheels may roll, whereby to avoid, the

dropping of the wheels into the spaces be tween the rails, as is common with the crosslngs as now constructed.

This specification isthe disclosure of one form of the invention, while the claims definelthe actual scope thereof.

Reference is to be had to the accompanying drawings,forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a plan view of the invention.

Fig. 2 is a sectional view 011 the line 2 2 of Fig. 1. Fig. 8 1s a detail section taken, for

" example, on the line 3 3 of Fig. 1; and Fig. 4

is a fragmentary plan view of a slight modification of the invention. 1

Referring to the first three ligures of the drawings, the main rails 4 of one track cross. ing the main rails 5 of the other ti ek are provided with the extra inside rails (i, fas- 37, lying alongside the rails 4.

tened thereto, and the main rails5 are provided with inside rails 7, fastened thereto and similar to the rails G, the several rails 4, 5, 6, and 7 being soarrangcd as to permit the flahges of the wheels to pass along in either direction without obstruction. 1 also provide' additional outside rails 36, lying alongside the rails 5, and additional outside rails These rails 36 and 37 are fastened to the main rails and serve to strengthen the structure and also to provide a smooth bearing-s11 rface for old worn wheels that would otherwise pass the crossing with a serious pounding. thus arranged presents to the wheels passing, for example, along the rails 4 open spaces, which occur between the rails 5 and 7 at their points of intersection with the rails'4 and (3.] The same is true of the rails 5, which are interrupted by open spaces occurring between the rails 4 and 6 at their points of intersection with the rails 5 and 7. To fill these spaces and provide a smooth bearing-surface The crossing for the wheels, I provide four pairs of elongated steel'bloeks 8, 9, 10, and 11. The blocks 8 are mounted on a rock-shaft 12 by-ineans.

of crank-arms 14, which are one for each block 8 and which are hinged to the blocks. v

\Vhen therock-shaft 12 is thrown in one direction, asshown in Fig. 1,- the blocks 8 are advanced so that their inner ends are in line with the adjacent rails 4, and consequently the wheel passing over the rail 4 will travel along an unbroken surface. \Vhen the rockshaft 12 is thrown in the other direction, the blocks 8 move outwardly and downwardly and settle into cavities 15, formed between the rails 5 and 7 at points directly above the shaft 12, as shown ,in Figs. 1 and The'shaft 12 is providedwith a crank-arm 16, to which is connected a link 17, passing to an elbot lever 18, fulcrumed adjacent to the crossing. The elbow-lever 18 is also provided with a link 19, connected. with the crank-arm 20 of a shaft 21, mounted diametricallyopposite the shaft 1.2 and having the blocks 10 connected therewith by means of crank-arms (not shown) similar to the crank-arms 14-. The arrangement of these parts 21 and 10 is the same as the arrangement of the parts 12 and S, and by reason of the links 17 and 1.) and the cranks 1G and 20 the blocks 8 and 10 act in unison with each other, so that the two sets of wheels of the car passing over the rails 4 will be provided with the bearing-surfaces, as explained. The other end of the elbow-lever 18 is connected with two links 22 and 23; The link 22 is pivoted to a crank-arm 24, and the link 23 is pivoted to a crank-arm 25. v The crank-arm 24 is fast to a rock-shaft 26, and the crankarm 25 is fast to a'roek-shaft 27, which shafts lot,

2 and 27 are similar to the shafts 1'2 and 21. The blocks] 1 are connected with the shaft :36 by cranks 21', similar to the cranks l4, and the blocks 9 are connected with the shaft 27 by cranks 28, similar to the cranks it, all of which is shown in Fig. 2. The elbow-lever 18 is adapted to be thrown by a hand-lever 30, connected with the elbow-lever by a link 31. The arrangement of the several links 17, 1t), 22, and and the cranks 1G, 20, 24, and 25 is such that as the blocks 8 and 10 are advanced to the operative position shown in Fig. :3 the blocks 11 and 9 are retracted and as the blocks 8 and 10 are thrown back the blocks 1) and 11 are advanced. In other words, the blocks 8 and 10 and the blocks 9 and 11 act in sets which advance and retract alternately. The el bowlever 18 may be thrown byan attendant soas to adjust the crossing for trains passing on either track 4- or 5.

The form of the invention shown in Fig. -.t differs from the other form of the in vention only in that it shows the adaptation of the apparatns to diagonal or angled crossings. In this arrangement the blocks 0 are actuated by two rock-shafts 27 and 532, the former havingacrank-arm 25, connected with a link 2 by which to rock the shaft 27. One of the blocks 9" is connected with the shaft. 27 bya crank-arm similar to the crank-arm 28. The other end of the shaft 27 is I)t'o,idetl with a crank 33 to which a link It is pivoted. This link 34 is pivoted to a crank-arm 235 on the shaft 32, to which shaft 3:. the other block 1)" is ttullltetflui b\' a tfi'tlilkttl'ltt similar to the crank-arm 28. in this form of theinvention the operation is the same as that previously described.

llavin thus described my invention, I claim as new and desire to secure by Letters Patent 1. A railroad-erossiug, having cavities formed between the rails thereof, the cavities being juxtaposed to and leading up to the spaces between the rails, sliding blocks mounted to move into said cavities and to move upward between the spaces between the rails, the blocks being arranged in sets, and the sets moving alternately. to place one in position when the other is out, four crankshat'ts extending parallel with the respective rails, the opposite crank-shafts being connected to move in unison, arms attached to the shafts and respectivelypiveted to the sliding blocks, and means connected with the pairs of shafts for rocking them in unison.

L. In a railroad-crossing, the combination with t he crossing rails, of the froghavingcavities therein, the cavities being juxtaposed to the spaces between the crossing rails, blocks mounted to slide in the cavities and movable relatively into the said spaces between the crossing rails, crank-shafts having arms pivoted to the blocks to move the same, a bellerank lever, and two sets of links respectively connected with the arms of the bellcrank ]e-. ver and respectively extending to the cranks ot' the '.t'ankshat'ts so-that upon a movement of the bell-crank lever the crank-shafts are operated in sets or gangs to throw the blocks into and out of operative position.

DAN a 1st o'r'r.

Witnesses:

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