US977153A - Railway-crossing. - Google Patents

Description

L. ALEXANDER.

RAILWAY CROSSING.-

APPLIOATION FILED MAY 16, 1910.

977,153. Patented Nov. 29, 1910.

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BAILW 0S APPLICATION D H 1910.

9775153. Patented Nov. 29, 1910.

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UITE l STTES ATENT rron LEWIS ALEXANDER, E CLINTON, ILLINOIS, ASSIGNOR TO ALEXANDER CROSSING COMPANY, OF CLINTON, ILLINOIS, A CORPORATION OF ILLINOIS.

RAILYVAY-CROSSING.

amiss.

Specification of Letters Patent.

Patented Nov. 2? 1910.

Application filed May 16, 1910. Serial No. 561,601.

To all whom 'it may concern:

Be it known that I, Lnwrs ALEXANDER, a citizen of the United States, residing at Clinton, in the county of DeVVitt and State of Illinois, have invented certain new and useful Improvements in Railway-Crossings, of which the following is a specification.

This invention relates to railway crossings and the main object of the same is to produce a device of this kind applicable to cases in which the tracks cross each other at angles, and one in which the rails of the track are made continuous.

To these ends the invention consists primarily of a base plate and rail carrying tumblers journaled in four independent bearings adapted to be separately bolted to said plate and it consists secondarily in the peculiar construction of the tumblers and their supports, and in the means of locking them, all of which will be hereinafter more fully described and particularly pointed out in the claims.

These objects I accomplish in the manner illustrated in the following drawings, in which- Figure 1 is a general plan View of the crossing, Fig. 2 is a side view, partly in section, of one of the tumblers and its connecting parts locked in transverse position, Fig. 3 is a sectional view of the locking device engaging the head of a tumbler, and, Fig. 4 is a perspective view of a bearing.

Similar reference characters refer to similar parts in all the drawings.

1 represents the base plate, 2 the bearings, 3 the tumblers, 4 the operating mechanism and 5 the track. The base plate 1 is preferably a rectangular sheet of metal, supported on ties or otherwise, and rigidly secured to the bearings 2 by bolts (3. The bearings 2 are duplicates of each other, each comprising a body preferably rectangular and pierced with a plurality of holes 7 to receive bolts 6, whose nuts are preferably disposed at the upper end thereof, and superimposed upon the base plate 1. The body of the bearing is preferably formed with a raised annular boss 8 surrounding a central upright hole 9 through the bearing. A channeled recess 10 parallel to the diagonal axis of the plate, is adapted to receive the rack bar 24: forming a part of the mechanism. The tumbler 8 for each hearing has a cylindrical body of a size to fit rotatably in the hole 9 and a pinion 11 formed therewith, the teeth of which extend into the channeled recess 10, an enlarged head 12 provided with two cylindrical recesses 13- extending through the head and adapted to receive the locking pins 14 to secure the section of rail 15 borne by each tumbler in alinement with the track 16 or the transverse track 17 as may be desired, the section 15 being of a length to bridge the break in each of the rails forming part of the tracks which cross each other, at right angles.

The rails 16 and 17 are of the usual construction, suitably supported on ties not shown and are connected with the plate by chair straps 18, certain pairs of which outside of each rail, are provided with stops 19 adapted to prevent the revolution of the rail section 15 beyond the proper alinement with the rails on the transverse track and blocks 25 integral therewith and slotted to receive locking pins let. The adjacent ends of the rails lie fiat on the plates 2 and abut against the boss 8 formed slightly larger than the head of its tumbler to the end that any expansion of the rails may not affect the rotation of the tumbler.

The operating mechanism which forms a part of this invention comprises a rod 20 actuating the rods 14 through the bell crank levers 22 to engage the recesses 18 in the respective heads 12 when track 16 is to be used. The rod 21 through the bell crank levers 23 actuates the rack bar 24 to drive each tumbler 3 to its position in alinement with the track desired. When the rail sections 15 are to be brought in alinement with track 17, the tumblers 3 are actuated through the lever 2-1 and the rack bar 24 and are prevented from moving beyond their proper position in either direction by the stops 19. Locking pins 14 passing through blocks 25 and actuated by lever 26 through bell crank levers 27, secure the rail sections 15 in alinement.

hat I claim, is

1. In a railway crossing, the combination with a series of bearings, tracks whose rails break over the bearings, tumblers ournaled in said bearings and having openings therethrough, locking members adapted to lie within the openings in the tumblers, enlarged heads on the tumblers, rail sections on the heads adapted to bridge the breaks in the tracks, blocks rigid with the rails having extensions projecting therefrom to limit the movement of the rail sections on the heads, pinions on the tumblers, a rack bar in a channeled recess in each bearing adapted to engage the pinions, means for actuating the rack bar, and separate means for actuating the locking pins to hold the tumblers in their respective positions.

2. In a railway crossing, the combination with a series of bearings, tumblers journaled in the latter, tracks Whose rails have breaks over said tumblers, rail sections on the tumblers adapted to bridge the breaks, pinions on the tumblers, a rack bar lying in a journaled recess in the bearing adapted to engage the pinions, means rigid with the rail sections for limiting the revolution of the tumblers, reciprocating locking pins ex tending into slots in the tumblers for locking the rail sections in longitudinal and transverse position, and means for rotating the tumblers.

In testimony whereof I aflix my signature in presence of tWo Witnesses.

LE'WIS ALEXANDER. lVitnesses CHAS. MORRISON, FRED BALL.

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