US552291A - Half to william devlin - Google Patents

Description

(No Model.)

'O.M.KEEF-ER. RAIL JOINT AND CLAMP.

Patented Dec. 31, 1895.

NITED STATES F ATE-NT FFICE,

CALVIN M. KEEFER, OF NEW CASTLE, PENNSYLVANIA, ASSI'GNOR OF ONE- HALF TO \VILLIAM DEVLIN, OF SAME PLACE.

RAILCJOINTANDQ CLAMP.

SPECIFICATION forming part of Letters Patent No. 552,291, dated December 31, 1895. Application filed July 12, 1895. Serial NOI 555,711. (N0 model.)

To all whom it may concern.-

Be it known that I, CALVIN M. KEEFER, a resident of New Castle, in the county of Law rence and State of Pennsylvania, have invented a new and useful Improvement in Rail Joints and Clamps; and I do hereby declare the following to be a full, clear, and exact description thereof.

My invention relates to rail-joints, and has reference to the same class of rail joint as described in Letters Patent No. 287,296, granted to me October 23, 1883, its object being to improve the construction of such joints: in such a way as to increase their holding power and strength and to so construct them' that the weight on the rail, if there is any yield'thereto, will increase the strength and rigidity of the joint, as wellas to improve the construction of such rail-joints in other particulars.

' To these ends my invention consists, generally f'stated, in the combination, with the rails, of fish-plates on each side thereof, one fish-plate having a bolt riveted thereto and extending outfromthe inner face thereof and curved with a continuous or radial curve upwardly from the fish-plate, and the other fishplate having an upwardly-curved perforation into which the bolt enters and locks, and holding means for the lower ends of the fish-plates, whereby, in the making of the joint, the two fish-plates on opposite sides of the rails can be so operated that as their upper edges are placed below the rail-head and their lower ends or flanges drawn down to fit over the flanges of the rails the bolts will pass through the holes in the rails and thence through the curved perforations of the fish-plate on the other side, and when the fish-plates are held As illustrated in the drawings, a a are the rails, which are of the usual or of any desired section, each having the head Z), the web 0, through which extend the usual holes or perforations d, and'the flanges e, the rails resting,

as shown, upon cross-ties f, and the joint being shown as a suspended joint, though it is ,of course to be understood that a supported joint may be employed if desired. 1 The fishplates g h are of the usual section, having the vertical portions gh and the flanges g 71 extend ing over the flanges e of the rails.

As shown in the drawings, instead of employing the regular bolt-holes in line with each other the fish-plates each have the holes or perforations 1', through which the bolts Z0 pass, the shape of these bolts before they are secured in place being illustrated in Fig. 3, the bolts having curved body portions Zwhich are radially curved that is, formed on a reg- .ular curve from the shoulders which bear against the inner faces of the fish-p1ateswhile the neck portions 10 of the bolts extend through the holes 7; in the fish-plates and are riveted on the opposite side, as at 70 so securing them rigidly and permanently in the fish-plates. The bolts are of course heated before being riveted in place, and the shoulders k thereof caused to conform to the inner faces of the fish-plates, so that a strong support for the bolts is obtained by such shoulder and the rivet-heads on the opposite side of the fish-plate. and most desirable way of securing the bolts in place, but any other suitable way of riveting or means of permanently securing the bolts may be employed, the main point being that wrought-metal bolts should be rigidly secured in the wrought-metal fish-plates, so that This is the simplest the strength of the wrought metal may be em ployed in the joint instead of the ordinary malleable cast-iron which was necessary in the combined fish-plate and studs described in my former patent. It is found that a much stronger joint is obtained by means of the separate bolt riveted to the fish-plate. In the opposite fish-plate is formed a curved perforation m, which, as shown, extends upwardly from the inner face of the fish-plate to the outer face thereof and is curved corresponding to the upward curve of the bolt k to fit into the same; and it will be noticed that when so constructed the upper edge j of the fish-plate extends under the head of the rail, and this upper edge is at a less incline to the horizontal than the perforation "In, so that any weight upon the upper edge of the fish-plate only forces the same down upon the curved body portion 1 of the bolt, and so draws the fish-plates toward each other and enables them to hold the joint more firmly when the weight of a passing train is thrown upon the rails. Any suitable number of such curved bolts and curved perforations or holes to receive them may be employed in the flslrplates, the drawings showing three such connections in each rail which, would make six connections between the two fish-plates.

In building up the joint with such fish-plates and their bolts after the rails are brought in line resting upon the ties, the two fish-plates are placed with their upper edges j under the rail-heads and their flanges g raised, and as the flanges are lowered toward the rail-flanges the bolts 7i; pass through the holes or perforations oppositc them in the rails and fishplates, so forming the joint; and it is necessary only to secure the fish-plates from rising to make the joint permanent. For this purpose, whether as a permanent device or as a means for clamping the fish-plates in place before the spikes n are driven into the ties and the fish-plates in this way held in place, I prefer to employa suitable clamping device which will extend under the railflanges and engage with the flanges of the fish-plates, and so hold them firmly in place, such clamp where joints are subjected to very severe strains forming part of the permanent joint; but for the ordinary rail-j oint the spikes it give a sufficient holding means to hold down the fish-plate flanges and form a secure joint, and after the joint is made the clamp is removed.

The form of clamp preferred by me is illustrated in the drawings at p and has the flat body portion 0 which extends under the railbase and under the flanges of the fish-plate, and has at one end the hook s which fits up over the flange of one fish-plate, while a removable hook-plate i extends over the flange of the other fish-plate and is secured to the body portion 0 in any suitable way. For example, the body portion 1- has the perforated tongue'u which extends out therefrom, and extending down from the body portion on each side of said tongue are the vertical flanges c; and the hook-platet has the slot t which fits over the tongue 14, the hook-plate extending below said slot, as at 15 so that its lower edge may rest against the vertical flanges r of the clamp-body, and when in such position the wedge-key w is driven through the perforation in the tongue u, outside of the hook-plate '6, so clamping the hook-plate firmly in position over the flange of the fishplate. \Vhcre such clamp is to remain as part of the permanent way the Wcdge-key w is formed as a split key and may be opened out, as shown in Figs. 1 and 2, to secure the clamp permanently in place.

In the building up of the joint in the way above described, after the fish-plates have been secured in place wit-h the curved bolts of the one plate extending through the curved perforations of the other plate, the clamp 11 is secured in place in the way above described, and the spikes n are then driven into the ties, and where the joint is between simple straight rails without great side strain upon them the clamp can either be removed or, if desired, it may remain in position to aid the belts in holding the fish-plates in position. \Vhere a supported rail-joint is employed two such clamps may be employed, one at each end of the fish-plate. The joint thus serves by means of the upwardly-curved bolts and correspondingly-curved perforations to bind together the fish-plates, and when a strain comes upon the joint, as in the passing of a train, in case the joint is loose, the strain upon the rail will be transferred to the fish-plates by means of the lower faces of the head resting upon the upper edges of the fish-plates, and as a result, if there is any movement in the joint, it will force the .fishplates down the curved body portions Z of the bolts and cause the clamping of the fish plates upon the rails and the more rigid holding thereof. The joint is thus constructed in such a way that the weight of the train upon. the rails causes the clamping of thefish-plates upon the rails and renders the joint more rigid.

Another advantage from the construction is that by employing the continuous regular radial upward curve of the bolts this clamp ing action is obtained without causing any great tendency of the outer flanges of the fishplates to rise, and as a result the rails are united in such a way that there is no great strain upon the holding-spikes or holding clamp, except of course upon a curve, and even when in such. position the action above described takes place and the only strain which it is required to resist is the side strain, which in turn would also cause the movement of the fish-plates toward each other and a more efficient holding of the joint. At the same time I am enabled. by the employment of wrought-metal fish-plates and of riveted bolts to very much increase the strength of the joint by forming it entirely of wrought metal instead of malleable iron, as in the joint shown in said Patent No. 287,296, and as I am enabled to roll the finished plates to shape they can be produced at less cost.

That I claim as my invention, and desire to secure by Letters Patent, is-

1. In a rail joint, the combination with the rail of fish plates on each side thereof,one having an upwardly curved bolt riveted thereto and the other having a correspondingly upwardly curved perforation into which the bolt enters to lock the plates together, and holding means for the lower ends of the fish plates, substantially as set forth.

2. In a rail joint, the combination with the rails, of fish plates on each side thereof, one having a bolt with a body portion projecting inwardly from the plate and having a continuous regular upward curve from the fish plate, and the other having a correspondingly curved perforation into which the bolt enters to lock the plates together, and holding means for the lower ends of the fish plates, substantially as set forth.

3. In a rail joint, the combination with the rails, of fish plates, one having a straight perforation and the other an upwardly curved perforation, and a bolt having an upwardly curved body, a shoulder fitting against the inner face of the plate and a neck extending through the straight hole of the plate and riveted on the opposite side, substantially as set forth.

4. In a rail joint, the combination with the rail, of fish plates on each side thereof, one having an upwardly curved bolt and the other a correspondingly upwardly curved perforation into which the bolt enters, and a clamp having hook portions extending over the flanges of the fish plates, substantially as set forth.

5. In a rail joint, the combination with the rail, of fish plates on each side thereof, one having an upwardly curved bolt and the other a correspondingly upwardly curved perforation into which the bolt enters, a rail joint clamp adapted to extend under the rail and having a hook portion extending up from one end thereof, and a perforated tongue at the opposite end, of a removable hook plate having a slot through which such tongue passes and a key for securing it to the clamp body, substantially as set forth.

In testimony whereof I, the said CALVIN M. KEEFER, have hereunto set my hand.

CALVIN M. KEEFER. Witnesses JAMES I. KAY, ROBERT C. TOITEN.

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