DEVICE FOR WITHDRAWAL OF ANCHORS AND FOUNDATIONS OF RAILROAD CONTACT-LINE REINFORCED-CONCRETE SUPPORTS Russian patent published in 2002 - IPC

FIELD: devices for removal of anchors and foundations of reinforced-concrete supports of various cross-sections of railroad contact systems. SUBSTANCE: device has supporting base and grip interconnected with each other by rams communicated with hydraulic system of base machine provided with jib crane. Grip is made in the form of closed rectangular frame embracing anchor body. Installed on frame from its one internal side are fixed props and movable hold-down appliance adapted for engagement with anchors of different cross-sections, and installed from opposite internal side. Hold-down appliance is made in the form of transverse self-adjusting beam installed on frame for motion under action of rams and provided with extreme props. Additional extending prop is installed in center of beam and provided with self-adjusting catch which is made in the form of one or several toothed discs hinged to vertical axle. EFFECT: provision of withdrawing anchors and foundations of contact-like supports of various cross-sections. 2 cl, 8 dwg