Expansion joint for part of a railway track

An expansion joint for part of a railway track capable to compensate for changes in length disposed on a foundation comprising:

• a first rail section having a contact area of predetermined length, said first rail section being clamped to the foundation;
• a second rail section movable in relation to the first rail section;
• means for fastening said second rail section to be pressed against said first rail section over the predetermined contact area;
• said means for fastening causing bending of the second rail section;
• said first rail section having in said predetermined contact area in which said movable second rail section is pressed into contact, a curvature corresponding to the bending line of said movable second rail section;
• the means for fastening the second rail section to be pressed against the first rail section includes a shaft extending over a foundation, a rolling element at the end of said shaft;
• and
• a spring element for holding down the first rail section.

An expansion joint for part of a railway track disposed on foundation means including a foundation and a support block disposed thereon, said expansion joint comprising:

• a first substantially fixed rail section having a predetermined contact area, a second rail section movable in relation to the first rail section, fastening means for pressing said second rail section against said first rail section over said predetermined contact area, said fastening means causing bending of the second rail section;
• said first rail section having in said predetermined contact area in which said movable second rail section is pressed into contact, a curvature corresponding to the bending of said movable second rail section;
• said first rail section is a stock rail having a head and said second rail section has a switch tongue shape;
• said foundation means including a foundation and a support block disposed thereon;
• said fastening means extending from said foundation means support block, and being supported by a sliding element for applying pressure in a transitional area which is formed between a foot and a web of the switch tongue in order to transmit force components in the direction of said foundation means and in the direction of said stock rail head;
• said sliding element extending from a shaft, said shaft being movable in relation to said foundation means.

An expansion joint for part of a railway track capable to compensate for changes in length disposed on a foundation means comprising:

• a first rail section having a contact area of predetermined length, said first rail section being clamped to the foundation means;
• a second-rail section movable in relation to the first rail section;
• means for fastening said second rail section to be pressed against said first rail section over the predetermined contact area;
• said means for fastening causing bending of the second rail section;
• said first rail section having in said predetermined contact area in which said movable second rail section is pressed into contact, a curvature corresponding to the bending line of said movable second rail section;
• said first rail section is a stock rail having a head and said second rail section has a switch tongue shape, the foundation means including a foundation and a sliding support block disposed therein;
• said means for fastening extends from said foundation means sliding support block, and is supported by a rolling element in the transitional area which is formed between tongue foot and tongue web in order to transmit force components in the direction of said foundation means and in the direction of said stock rail head, said rolling element extending from a support element having a shaft, said support element being movable in relation to said-foundation means.

An expansion joint for part of a railway track capable to compensate for changes in length disposed on a foundation means comprising:

• a first rail section having a contact area of predetermined length, said first rail section being clamped to the foundation means;
• a second rail section movable in relation to the first rail section;
• means for fastening said second rail section to be pressed against said first rail section over the predetermined contact area;
• said means for fastening causing bending of the,second rail section;
• said first rail section having in said predetermined contact area in which said movable second rail section is pressed into contact, a curvature corresponding to the bending line of said movable second rail section;
• said second rail section is a stock rail having a head and said first rail section has a switch tongue shape, the foundation means including a foundation and a sliding support block arranged therein;
• said means for fastening extends from said foundation means sliding support block, and is supported by a rolling element in the transitional area which is formed between stock rail foot and stock rail web in order to transmit force components in the direction of said foundation means and in the direction of said stock rail head, said rolling element extending from a support element having a shaft, said support element being movable in relation to said foundation means.