Abstract: Statistical propylene copolymer containing 0.2-0.9% by weight monomeric units derived from ethylene; 13-21% by weight monomeric units derived from .alpha.-olefin having 4-10 carbon atoms, and 78.1-86.8% by weight monomeric units derived from propylene. The copolymer has a melting point of 115-125.degree. C.; a proportion of polymer soluble in boiling heptane greater than or equal to 95% by weight, and a proportion of polymer soluble in cold xylene (25.degree. C.) greater than 40% by weight.

Abstract: A tiltable bowl of a carriage of a sorting line is secured on two supports which are arranged axisymmetrically with respect to one another. The supports are pivotably seated on an axle. On each support, a resilient yoke is formed on one side with its first end. The oppositely disposed second end of the yoke can be displaced within defined limits relative to the supports. Each yoke has a latch cam which, in the horizontal, initial position of the bowl, locks into place behind a projection fixedly connected to the frame and thus locks the bowl in this initial position. When a pusher rod articulated at the second end is pushed upward, the lock is released first and then the bowl is tilted.