slip

A landing for a ferry. A place for mooring a vessel. 48 Am J1st Ship § 263. A rider attached to a contract, particularly a contract of insurance. 29 Am J Rev ed Ins § 268. A memorandum constituting a contract in itself, as a binding slip. A technical term for a great quantity of dust blown out of a blast furnace. The escape of dust from blast furnaces into the atmosphere is, and always has been, incident to their operation. It escapes at all times, but in larger quantities when what is known as a "slip" occurs. In the operation of all blast furnaces "slips" occur from time to time. These are occasioned by the caking or incrusting of the ore in the stack of the furnace, and the falling away of the ore, fuel, and limestone beneath the crust by reason of continued combustion and the liquefaction of the iron, thus forming a chamber or vacant space into which the incrusted ore drops, occasioning an explosion, the violence of which depends upon the extent of the cavity produced and the amount of gas accumulated therein. See Sullivan v Jones & Laughlin Steel Co. 208 Pa 540, 57 A 1065. See binder; rider.