Section 7148 - Hoisting Tools and Materials(a) (19-80) All timbers, tools, and other materials that are longer than the shaft conveyance in which they are being hoisted or lowered shall be securely lashed to the cable at their upper ends, or otherwise secured, so they will safely ride up or down the shaft without catching on timbers, rocks, or other obstructions.(b) Other material shall be secured to the shaft conveyance or enclosed in such manner that it cannot fall from the conveyance or catch on obstructions along the shaft.(c) (19-79) Where mine cars are hoisted by cage or skip, means for blocking cars shall be provided at all landings and also on the cage.Cal. Code Regs. Tit. 8, § 7148