US2820421A - Removable rail-mounted car stop - Google Patents

Description

' Jan. 21, 1958 G. w. MERRITT ,3

REMOVABLE RAIL- MOUNTED CAR STOP Filed June 15, 1955 INVENTOR 6. WMerraZ?" ATTOFNEY United States Patent i Glenn W. Merritt, Bowerston, Ohio, Nolan Company, Bowerston, Ohio, Ohio Application June 15, 1955, Serial No. 515,601 2 Claims. (Cl. 104-259) assignor to The a corporation of This invention relates to car stops, and has particular reference to an improved portable car stop formed for removable application to the head of a track rail at any selected position along the length of the rail.

A general object of the invention is to provide a strong, simple and effective car stop which may be conveniently clamped on the head of a track rail and which is formed to project above the rail for engagement with the outer peripheral portions of car wheels, whereby to arrest car movement at definite positions along such rails.

Another object of the invention is to provide a railmounted car stop embodying an arcuate body casting, the latter having horizontal bottom surfaces by which the casting may be positioned in an upright manner on the upper wheel-receiving surfaces of rail heads, and wherein the casting is secured in its rail-applied position by a pair of bolt-joined clamping plates arranged on opposite sides of the casting and an associated rail head.

A further object is to provide a car stop of this type wherein the body casting thereof is longitudinally flanged along its lower part, the upper surfaces of such flanges being disposed in acute angular relation with respect to the horizontal plane of an associated rail head, thereby providing integral wedge formations on each side of the casting extending longitudinally thereof, said formations having engagement with correspondingly inclined wedging surfaces provided on complemental flanges of a pair of separable, bolt united, clamping plates disposed at the sides of the body casting. The arrangement of these parts is such that thrusts imparted longitudinally to the body casting and vertical components thereof are effectively resisted and absorbed by the interengaging wedgeforming surfaces of the casting and clamping bracket flanges.

For a further understanding of the invention, reference may be had to the following description and accompanying drawing, wherein:

Fig. 1 is a perspective view of my improved car stop when actively positioned on the head of a track rail;

Fig. 2 is an enlarged side elevational view thereof;

Fig. 3 is a vertical transverse sectional view taken on the line 33 of Fig. 2.

In accordance with the present invention, a car stop is provided consisting of a steel body casting 5 formed to be erectly positioned on the substantially fiat, horizontal, upper surface 6 of the head 7 of an associated track rail 8. The rail is shown as being supported an a crosstie 9 positioned in a ballast bed 10, with the base flanges 11 of the rail resting on a chair plate 12 and the assembly spiked as at 13 to the tie.

The body casting is of segmental formation, having a central vertical web 14 in which is formed a weightdiminishing opening 15, the upper portions of the web providing arcuate car wheel-engaging front flanges 16 and curvilineal back flanges 17. The web also includes laterally projecting bosses 18 surrounding a tool-receiving 2,820,421 Patented Jan. 21, 1958 2 opening 19 employed in facilitating the handling of the stop.

The lower part of the casting body includes a flange formation 20 of increased cross-sectional thickness with respect to the web 14. This flange formation has its under face longitudinally recessed or slotted as at 21 immediately above the rail surface 6. At the opposite ends of this recessed or flanged portion, the body casting is formed with integral downwardly directed, seating extensions or pads 22. The latter are provided with flat, bottom surfaces arranged in a horizontal plane and adapted for seating engagement with the rail surfaces 6. The flanged part 20 of the bottom casting is formed at the top thereof, and on opposite sides of the body casting, with inclined, longitudinally extending, wedge-producing surfaces 23.

To secure the body casting to the rail where placed thereon, use is made of a pair of clamping plates 24. These plates are adapted to be arranged on opposite sides of the body casting and the track rail. Each plate comprises a cast steel body formed with integral, inwardly directed, horizontal, upper and lower flanges 25 and 26, respectively, the same being united by a vertical web 27. The lower flanges 26, when the plates 24 are drawn together in clamping engagement with the associated track rail and body casting, are disposed in engagement with the under surfaces of the rail head 7 and with the adjoining outer side surfaces of the rail web 8, as shown in Fig. 3. The upper flanges 25 are formed with flat, longitudinally inclined wedge surfaces 28 which engage, throughout the length of each flange 25, the complemental inclined surfaces 23 of the body casting. The vertical webs 27 of said clamping plates extend adjacent to and parallel with the opposite side surfaces of the flange formation 20 of the body casting and the rail head 7.

To secure the clamping plates in their car stop-holding positions, the webs 27 thereof are formed with longitudinally spaced openings 29 for the reception of the shanks of headed clamping bolts 30. The threaded ends of these bolts receive clamping nuts 31, and the bolt shanks are positioned in and pass transversely through the recessed or slotted underside 21 of the body casting above the rail heads 7. Upon tightening the nuts 31, the clamping plates are drawn into holding engagement with the body casting.

With the car stop constructed and positioned on a rail, as here shown and described, thrust forces imparted longitudinally to the body casting by a car wheel contacting the arcuate flanges 16 thereof, are resisted and absorbed by the general frictional clamping action of the plates 24. This action is supplemented by the wedge-shaped flanges 20 of the body casting engaging the corresponding wedge flanges 25 of the clamping plates in absorbing the vertical and longitudinal components of said thrust forces. In applying the car stop, it will be noted that its formation is such that no drilling of track rails is necessary, nor are the associated ties or track ballast disturbed. The stop may be quickly and securely applied when needed and with the same facility removed from a working position on a rail when its use is discontinued.

I claim:

1. A track rail mounted car stop comprising: an integral body member formed to be seated in an upright position on the upper surface of the head of an associated track rail, said member including a forwardly disposed, arcuate, car wheel-engaging surface, the lower portion of said member being formed on opposite sides thereof with outwardly and laterally projecting, longitudinally extending flanges, the upper surfaces of said flanges being disposed in acute angular relation to the horizontal to cause said flanges to decrease in height from the front of the body member to the rear thereof, the bottom of said member including a longitudinally extending recess, said flanges at the forward and rear ends thereof being formed with integral pad formations having fiat horizontally arranged bottom surfaces adapted for seating engagement with the upper surface of the associated rail head; a pair of laterally and outwardly separable, longitudinally extending clamping plates disposed at each side of said body member and an adjoining rail head; each of said plates including a central web terminating along the upper and lower portions thereof in inturned, longitudinally extending upper and lower ribs, each upper rib of said plates having a lower face inclined to conform with the angular upper surface of a complemental body member flange, and the lower rib thereof formed for holding engagement with the adjoining under surface of the rail head; and fastening bolts passing transversely through openings formed in the webs of said plates between said ribs and the recessed bottom portion of said body member.

2. A track rail mounted car stop comprising: an integral body member of substantially quadrantal configuration formed to be seated in an upright position on the upper surface of the head of an associated track rail, said member having a forwardly disposed, arcuate, car wheelengaging surface, the lower portion of said member being formed on opposite sides thereof with outwardly and laterally projecting, longitudinally extending flanges, the upper surfaces of said flanges extending outwardly and horizontally from said body being disposed in acute angular relation to the horizontal to cause said flanges to decrease in height from the front of the body member to the rear thereof, the bottom of said member being formed with a longitudinally extending recess disposed directly over the head of an associated rail, said flanges at the forward and rear ends thereof being formed with integral pad formations having flat horizontally arranged bottom surfaces for direct seating engagement with the rail head; a pair of longitudinally extending clamping plates disposed at each side of said body member and the associated rail, each of said plates including a central, vertically disposed web which terminates at its upper and lower edges in inturned, longitudinally extending upper and lower ribs, the upper ribs of said plates having the lower faces thereof inclined longitudinally to conform to the acutely angled upper surfaces of said body member flanges, the lower ribs of said plates being formed for holding engagement with adjoining under surfaces of the rail head, said ribs possessing a formation providing for lateral movement in a horizontal plane into and out of clamping engagement with said body member flanges and said rail head; and a plurality of fastening bolts passing transversely through openings formed in the Webs of said plates between said ribs and the recessed bottom portion of said body member, said bolts being disposed in spaced longi tudinal order immediately above the upper surface of said rail head.

References Cited in the file of this patent UNITED STATES PATENTS

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