Clark's Compound

A cement used for the outside of the sheath of telegraph cables. Its formula is: Mineral Pitch,   65 parts. Silica,          30 parts. Tar, 5 parts. All parts by weight. 127  STANDARD ELECTRICAL DICTIONARY. Cleats. A support; a short block of wood, grooved transversely, for holding electric wires against a wall. For the three wire system three grooves are used. The entire wiring of apartments is sometimes done by the "cleat system," using cleats instead of battens, q. v., or mouldings. The cleats are secured against the wall with the grooves facing it, and the wires are introduced therein. IMG:8956969607833025625_127F91.jpg: Fig. 91. TWO WIRE CLEAT. IMG:8956969607833025625_127F92.jpg: Fig. 92. THREE WIRE CLEAT.