摘要:
A guide plate for the attachment of rails for rail vehicles includes at least one recess moulded into the guide plate from an underside on which the guide plate stands in an assembly position, a support surface formed on an upper side of the guide plate for a spring element and a contact surface provided on one face of the guide plate which extends in a longitudinal direction of the guide plate. At least one reinforcing rib is provided on the upper side of the guide plate which rises above the support surface and extends crosswise to the contact surface and the recess moulded into the guide plate from the underside reaches into the area of the guide plate in which the reinforcing rib is provided.
摘要:
The present invention relates to a fastening device (100) for fastening a railwayrail (10) onto a support (4), comprising a primary element (101) and a secondary element (102). The secondary element (102) corresponds to nut and bolt fasteners comprising at least one nut and one screw (9) with a screw body (82) and a screw head. The primary element (101) comprises at least one part (1,2) with an upper surface and lower surface, said part being crossed in its thickness by at least one aperture (80) able to receive said screw (9). Said aperture (80) is formed by a first recess (8) located on the upper surface of said part and intended for receiving the screw body and a second recess (8) located on the lower surface of said part and intended for receiving the screw head. According to the invention, the upper surface of the lower part is inclined according to a first slope (12) and the lower surface of the upper part is inclined according to a second slope (14), the first slope and the second slope being complementary. According to the invention, the upper part comprises means (81) for tilting the screw, said means located on the edges of the first recess.
摘要:
There is disclosed a rail sleeper which when secured to rails affords rapid disengagement when necessary and is comprised of a metal bar of a U-shaped channel section. At two locations along the length of the bar portions of flanges of the sleeper are removed to provide slots disposed at right angles to the longitudinal axis of the bar. Each slot is wider than the base of the rail fitting thereinto with the space between slots dependent upon the gage between parallel rails and with the depth of such slots being varied to suit rail height. One rail flange is secured in place by an overhanging portion of the sleeper flanges. The other rail flange is secured by a generally T-shaped steel plate which is bolted to the bottom of the U-shaped channel section such that the horizontal bar of the T-shaped plate rests across the upright flanges of the sleeper. One edge of the horizontal bar engages the web of the rail and the other edge engages the edge of the slot, thus wedging the rail into secure engagement.
摘要:
Manufacture of rapidly hardening phenol formaldehyde resin molding compositions having improved thermal stability and good flow characteristics by incorporating into the molding compositions hexamethylenetetramine in the form of a metaboric acid addition product. The resulting molding composition is then rolled and ground to produce the molding composition of improved properties.