US1627877A - Railway crossing - Google Patents

Description

May 10, 1927. N. ZINK RAILWAY CROSSING Filed April 19, 1926 2 Sheets-Sheet 1 animator,

M Z'ink Patented May 10, 1927.

,NORBERT lm .liilsii' COLORADO.-

RAILWAY Application filed April 19,

small cost, since it is not necessary to disturb or replace anypart of the crossing.

WV-hile the drawingsillustrate apreferred embodiment of the invention it is to be understood that in adapting the ineansto meet specific needs and requirements the design. may be varied and such other changes in the minor details of construction may be resorted to Within the scope ofthe lIIVQIIt IO II as claimed, without departing from thespirit thereof.

For a full understanding of thein'vention and the merits thereof, reference is to be had to the following description and the drawings hereto attached, in which- Figure 1 is a top plan View of a portion of a railway crossing embodying the invention, I i i Figure 2 is a detail sectional view on the line 2-2 of Figure 1, looking in the 'directlon of the arrows,

Figure 3 is an enlarged perspective of bridge members to be located in the flange channels of the crossing,

Figure 4 is'a view similar to Figure 3 of a modification,

Figure 5 is a view similar to Figure 2 of a modification,

'Figure 6is a perspective view similar to Figure 3, of a modification,

Figure 7 is a view similar to Figure 5 of a further modification,

Figure 8 is a detail perspective View similar to Figure t, showing a modification,

Figure 9 is a sectional view similar to Figure 2, of a further modification,

Figure '10 is a detail perspective view of the modified form of bridge member embodied in Figure 9 and,

Figure 11 is a perspective view showing adjacent ends of corresponding bridge pieces abuttin to provide a continuous surface between tie track rails and across the. gaps.

CI R IO S SIN G.

1926. serial No. 103,104.

Corresponding and like parts are referred to inthe following description anddesignated in the several views of the drawings by like reference characters.

The railway crossing may be of any usual or preferred construction and comprises tread rails 1, and guard rails 2, a channel '3 being provided between the two rails to'provide clearance for the flange of the car wheel 4, as indicated most clearly in Figure 5. .In accordance with the invention bridge members are located in the channels 3at the inter'section' of crossing rails-and these bridge members are readily replaceable and aresecurel'y'held in place by bolts 5 or other suitable fasteningrmeans passing through registering openings formed in the bridge members and the rails bordering uponthe channels 3. The bridge members cross and are of a height at the point of crossing to engage the'flange of the car Wheel and carry the tread thereof over the channel or gap of intersecting rails. The upper surfaces of thebridge members decline fromthe point of crossing to admit of the flange of the wheel gradually riding thereon when approaching and leaving the crossing.

The bridge members illustrated in Figures 1 and 3 are continuous throughout their length and are designated by the numerals '6 and 7, the latter being notched in its top side to receive the member 6,'the upper faces of the two members being flush and declining fromthe point of crossing. The sides of the respective members6 and Tare parallel and coincide with the parallel walls ofthe channels v3 whereby'the'bridge members may be placed within the channels or removed therefrom by a vertical movement. In the form shown in Figure 4 the bridge member 7 is continuous throughout its length and. is notched in opposite sides, as indicated at 8 to receive the inner ends of the sections 6 comprising the complemental bridge member.

In the modification shown in Figure 6 each of the bridge members comprises sections which abut and overlap at their inner ends. The sections 7 are notched at their inner ends, as indicated at 9, to receive the inner ends of the sections 6 The opening formed by the notches 9 is of wedge-shape to conform to the outline of the sections 6 in cross section. The lower portion 3* of the channel is of wedge-form to correspond with the wedge outline of the sections 6 and 7", as shown most clearly in Figure 5,

. thereby preventing any vertical movement of the bridge members and insuring a broader base than in the form shown in Figure 2, in which the walls of the channels are parallel throughout their extent. In the construction shown in Figures 5 and 6 the bridge members are placed in position or removed from the channels of the crossing by a longitudinal movement.

In the modification shown in Figure 7 the side walls of the lower portion 3 of the channel are upwardly converged and intersect the parallel walls of the upper portion of the channel 3. As shown in Figure 5, the inner portion of the heads of the rails 1 and 2 overhang the bridge member, whereas in Figure 7 the corresponding portions of the rails 1 and 2 terminate in line with the margins of the top side of the bridge member and do not overhang the same. As shown in Figure 8 the bridge member 7 is continuous throughout its length and of wedgeform in cross section and is provided in opposite sides with wedge shaped notches 8 to receive the inner ends of the sections 6 of the complemental bridge member.

The modification shown in Figure 9 has the lower portion 3 of the channel enlarged laterally and of rectangular outline. The bridge members 7 and 6 for the form of channel shown in Figure 9 comprise a middle portion 10 and side port-ions 11. The member 7 is continuous and is provided in opposite sides with notches 8 to receive the inner projecting ends of the middle portion 10 of the sections 6 The top side of the outer portions 11 .are in the same plane throughout, whereas the top side of the middle portion 10 declines from the point of intersection of the two members towards opposite ends, so that the inner portion of the part 10 projects above the adjacent side portions 11 and the outer portion is in a lower plane than the corresponding portions of the adjacent parts 11. When the bridge members 6 and 7 are in place, the inner portions of the heads of the rails 1 and 2 overhang the side portions 11, as indicated most clearly in Figure 9, and the middle portion 10 corresponds with the channel 3,

the top side of the members declining from their points of intersection towards opposite ends.

From the foregoing, taken in connection with the accompanying drawings, it will be readily understood that a railway crossing embodying the invention admits of the car wheels passing smoothly over the channels or gaps of the crossing rails without any noise, jar or undue Wear to the crossing or rolling stock. Moreover, the bridge members, when worn, may be readily replaced at a comparatively small cost, as it is not necessary to disturb any portion of the crossing or to replace the same.

In some instances it may be preferable to have the bridge pieces continuous and such an arrangement is shown in Figure 11. This applies to any style of bridge piece, c0rresponding members 6 and 7 having their adjacent ends abutting. The tread surfaces of the end portion incline, whereas the surfaces between the ends are straight to support the wheels during their travel over the crossing and gaps.

Having thus described the invention, I claim:

1. A bridge member for a railway cross ing, comprising a middle and side portions, the top side of the middle portion projecting above the top side of the outer portions intermediate the ends of the member and the outer portions extending below the surface of the side portions at the outer ends thereof.

2. A bridge member for a railway crossing, comprising a middle'and side portions, the top side of the middle portion projecting above the top side of the outer portions intermediate the ends of the member and the outer portions extending below the surface of the side portions at the outer ends thereof and said side portions having opposite side notches and a sectional bridge member of like formation to the main bridge member having the inner ends of the middle portion projected to enter the notches formed in the sides of the main bridge member.

In testimony whereof I aflix my signature.

NORBERT ZINK. [1,. a

Images