INSERTION PIECE FOR MAINTAINER BLADE AND MAINTAINER BLADE Russian patent published in 1996 - IPC

FIELD: railway building and repair. SUBSTANCE: blade 7 of maintainer has steel plate secured to lever 5. A notch for insertion piece 8 of material resistant to wear is originated in lower part of the plate. Insertion piece 8 is secured in the notch. Insertion piece 8 is made in the form of plate with back and front walls to form plate thickness, lateral walls to form plate width, upper and lower parts. Lower part of insertion piece 8 is bow-shaped between lateral walls. Back and front walls of insertion piece 8 are parallel. Lower part of insertion piece 8 has bevels placed on both sides of lower edge and directed from bottom to top towards back and front walls. EFFECT: high reliability. 23 cl, 9 dwg