| 摘要 |
FIELD: railway transport; permanent way. SUBSTANCE: proposed rail has neck made integral with foot and provided with thickened upper part in which recess is made, head with chute-like lower surface at one side of which projection is made for mating with said recess, and lever one end of which is secured by bolt on neck and other end, bent relative to said end, engages with head. Engagement of other bent end of lever is provided by thrusting against projection made on other side of head chute and resting against section changing into thickened part of neck. Adjacent side surfaces of projection from one side of chute and recess are located within 40o and 65o to horizontal. EFFECT: reduced metal content of structure, reduced labor input at mounting. 1 dwg |
