| 摘要 |
FIELD: transport. ^ SUBSTANCE: stop block contains shoe with handle attached to runner by two rivets. Shoe has groves with antifriction material pressed-in. Groves in shoe may be made as slots in form of dovetail. Inserts may be made of powdered metal consisting of: 8-10 % Fe, 0.6-1 % Al2O3, 3.5-5 % C, 3.5-4.5 % Sn, with remaining part of Cu. ^ EFFECT: improvement of device performance and avoiding wheel locking. ^ 3 cl, 2 dwg |
