Abstract:
A concrete railway rail foundation wherein an uppermost face of the foundation comprises a rail seat area for supporting a railway rail extending in a first direction across the rail seat area, two anchoring device seating regions located on either side of the rail seat area for accommodating respective anchoring devices, and, on each side of an anchoring device seating region, an upstanding portion having a height substantially the same as or higher than that of an anchoring device and a depth, in a second direction substantially perpendicular to the first direction, which is substantially the same as or deeper than that of the anchoring device is disclosed.
Abstract:
Fastening of rails on wooden or concrete sleepers by a metal pressure plate-clip in the form of a trapezoid (1.5) and a plastic tie-plate (1.4). The metal pressure plate-clip and the plastic tie-plate constitute an entirety, and provides a continuous pressure along its entire edge (2.1). The edge leaning on the rail base is formed in the way to enable a smooth gliding along the rail base during pulling on, preventing unnecessary resistance and damage. The other, narrower side of the pressure plate is formed in the way that it has a fixation edge at its end (3.2), preventing any shifting. The plastic tie-plate has a fixation groove at its outer end (4.2) in which the narrower, outer end of the pressure plate enters. The groove is formed in the way that it forms a firm connection with the outer end of the metal pressure plate-clip, so that taking out of the pressure plate is not possible. The tie-plate also contains a bigger groove (4.4), which allows deformation of the pressure plate during dismounting.
Abstract:
A rail fastening clip used with a rail clip support having a rail clip slot of the kind used in K plates is disclosed. The rail clip is formed from a U shaped member made of metal plate having a base and two arms tapered from the base to their tips, with the arms being bent inwardly beyond the base in a large arc and the tips are bent back toward the base and oriented for contact with the foot of the rail. The base is adapted to fit in the K plate slot of the rail clip support. The base of said clip has a leading edge remote from the arms that contacts the upper interior surface of the support slot to form at least a line of contact with said upper interior surface of said slot. The line of contact is about 6 mm. The design overcomes the problem of rotation of the clip within the support slot and is a more cost effective clip than that currently used with K plates.
Abstract:
A sleeper having two pairs of protuberances upstanding from its upper portion, the protuberances of each pair defining between them a rail seat, apertures in the upper wall of the sleeper which extend from the protuberances for a short distance away from the rail seat, four U-shaped clips engaging each sleeper, each U-shaped clip having an upper toe, which bears downwardly on the upper portion of the rail, a heel engaging the upper surface of the sleeper adjacent the relevant aperture, and a lower toe extending through an aperture in the rail and bearing upwardly against the undersurface of a respective protuberance.
Abstract:
The device comprises a spring fixed to a support at a point remote from the rail and curved in the direction of the rail, and a swing block interposed between the spring and the flange of the rail. The swing block bears against the flange of the rail at one end and against the support at its opposite end. The swing block is clamped by the end of the spring which applies a clamping force at point located at a distance from the flange of the rail but in the vicinity of the flange so that the two lever arms of the swing block have very different lengths. Further, the spring has a thickness which decreases in the direction of the rail and bears against the swing block by its end which is curved, the swing block having a corresponding shape under said end.
Abstract:
An assembly is provided for securing a rail to a supporting tie and includes upper and lower plate members engaging corresponding tie surfaces. The upper plate member is interposed the base of the rail and the tie upper surface. A portion of the upper plate member projects outwardly from the rail base and is apertured. The aperture is aligned with a hole in the tie extending transversely between the corresponding tie surfaces. The lower plate member is provided with a slotted aperture aligned with the tie hole. A resilient clip overlies the upper plate member apertured portion and includes apertured inner and outer sections disposed in resiliently spaced relation. Apertures in the clip sections are aligned with one another and the upper plate member aperture. A lock element is provided having a head end, a distal end, and a shank interconnecting the ends. The distal end has lateral extensions. The aligned apertures of the clip and the upper plate member and the tie hole are sized to accommodate the shank, distal end, and extensions of the lock element adjacent the distal end. The extensions are passable through the lower plate member slotted aperture only when in slot-registered relation with the slotted aperture. The slot-registered extensions pass through the slotted aperture when a predetermined compressive force is applied to the head end and lock with lower surface portions of the lower plate member when a predetermined twisting force is applied to the head end.
Abstract:
An elastic rail fastening device for securing a rail to a concrete tie having a spike secured therein. A top pressing spring engages the top surface of the rail flange for holding the rail against the tie. One end of the spring is supported beneath a shoulder on the metal spike. A spring receiver is fitted to the tie, and the other end of the top spring bears thereagainst. A side spring is inserted between the side of the rail flange and the spring receiver to receive transverse pressure working on the rail.
Abstract:
A resilient rail clip or fastener formed in a generally trapezoidal configuration from springsteel is provided for securing rail track to railroad ties that may be constructed from a variety of materials. The trapezoidal shaped resilient rail clip has a long edge for gripping the rail which when untensioned forms a type of sine shaped curve and which when tensioned to the rail, utilizing two spikes or screws per clip, transforms the sine shaped curve into a linear line that is biased flat against the foot of the rail. The pressure of the two spikes or screws per clip in combination with the configuration of the springsteel dampen potentially harmful acceleration and deacceleration forces in the rail and frequency vibrations in the range of 800 to 1000 Hz which occur prior to and during train passage by absorbing and dissipating the forces while preventing lateral movement, creep, rotation and failure of the rail by utilizing the natural frequencies of the novel clip while minimizing track maintenance by reducing deterioration of the rail tie.
Abstract:
The device comprises a metal fastener which bears against the flange of the rail and against the rail support. An insulating element is combined with the fastener for insulating the fastener from the support and insulating the fastener from a fixing bolt which extends through an aperture in the fastener and is anchored in the rail support. The insulating element is in one piece and comprises a planar branch having an aperture for the passage of the fixing means and a loop portion which is so shaped as to ensure the elastic mounting of the insulating element on the fastener and to be interposed between the fastener and the support.