pumpbolt (pumpbolt)

A toggle-pin used on fishing-ve els. [Ma achusetts, U. S.] pump-box (pump'boks), n. 1. The piston of the common pump, having a valve opening upward.-2. The casing or cap of a pump. Lower pump-box, the casing of the lower valve of a pump. - Upper pump-box, the casing of the upper valve. pump-brake (pump'brāk), п. The arm or handle of a pump, more particularly that form which has a horizontal hand-piece at the end of a lever. See brake3. pump-cart (pumpʻkärt), n. A vehicle carrying a pump and reservoir, used for watering and irrigating. E. H. Knight. Submerged pump, a pump the barrel and valves of which pump-chain (pump'chān), n. The chain of a are submerged, while its pump-rod and discharge-pipe extend above the surface of the water in which the pump barrel is placed. The principal advantage pertaining to submerged pumps is that their working parts are not liable to be obstructed by the formation of ice (called freezing up ), as is the case with pumps exposed to effects of very cold air. - To fetch a pump. See fetch1.- To prime a pump. See prime. (See also air - pump, chain pump, filter - pump, force - pump, jet - pump.) pump1 (pump), v. [= D. pompen = G. pumpen = Sw. pump a = Dan. pumpe; from the noun. 1. Naut., chain-pump. See chain - pump. pump-cistern (pump's istern), n. a cistern over the head of a chain-pump to receive the water, whence it is conveyed through the ship's side by the pump-dales.-2. A contrivance to prevent chips and other matters from getting to and fouling the chain-pumps. pump-coat (pump'kōt), n. Naut., a canvas vided with pumps; wearing pumps or low dre shoes. [Rare.] All the young gentlemen tightly cravatted, curled, and pumped. Dickens, Dombey and Son, xiv. pumper (pum'per), n. [= G.pumper; as pump1 +-er1.] 1. One who or that which pumps. The flame lasted about two minutes from the time the pumper began to draw out the air. Boyle , Works, I. 26. 2. A mineral-oil well from which the oil must be pumped up, as distinguished from one from which the oil i ues in a natural jet.