throttle valve

Steam Eng .: A valve which regulates the supply of steam to the cylinder. In the Watt engine it is a dise turning on an axis and occupying in its transverse position the bore of the main steam-pipe. It is frequently an ordinary conical valve with a stem operated by a screw. In land engines it is generally connected with the governor. throttle, v. i. & t. [THROTTLE, 8.] *A. Intransitive : 1. To choke, to suffocate; to have the throat obstructed, so as to endanger suffocation. 2. To breathe hard, as when nearly suffocated. pine, pit, sire, sir, marine; gō, pot, B. Transitive : throttler 1. To choke, to suffocate; to stop the breath of by compre ing the throat; to strangle. "In heaps the throttled victims fall: Down sink their mangled herdsman near." Scott: The Chase , xxix. *2. To pronounce with a choking voice; to utter, as one half-suffocated. "Throttle their practiced accent in their fears." Shakesp.: Midsummer Night's Dream, v. 1. throt-tler, s. [English throttl (e), v.; -er.] One who or that which throttles. through ( gh silent), *thoru, *thor-uh, *thorw, *thurch, *thurgh, *thurh, *thur-uh, *thurw, prep., adv. & a. [A. S. thurh (prep. & adv.); cogn. with Dut. door; O. H. Ger. durh , duruh; Ger. durch; Goth. thairh .] [THOROUGH, THRILL.] A. As preposition : 1. From end to end of, or from side to side of; from one surface or limit to its opposite; as, A cannon-ball pa es through the side of a ship. It is sometimes doubled for sake of emphasis. "My buckler cut through and through." - Shakesp.: Henry IV ., Pt . I. , ii. 4. 2. Between the sides or walls of. "I'll convey thee through the city gate." Shakesp.: Two Gentlemen, iii. 1. 3. Over the whole surface or extent of; through out. "Seek through your camp to find you." Shakesp.: Henry V., iv. 1. 4. Among or in the midst of; denoting pa age. "The brambles through whom he rushes." Shakesp.: Venus and Adonis, 630. 5. Among, in the way of experience; as, to pa through dangers. 6. From beginning to end of; to the end or conclusion of; throughout. Said of time; as, through the whole year. 7. By the instrumentality, medium, or agency of; by means of. "My master through his art foresees the danger." Shakesp.: Tempest, ii. 1. 8. On account of; out of; because of. "The subjects' grief comes through commi ions." Shakesp.: Henry VIII., i. 2. IMG:content-1067.png:[blocks in formation] 1. Going, pa ing, or extending with little or no interruption from one place or center to another; as, a through journey, a through pa enger, a through ticket. 2. Strong, deep-seated; as, a through cold. (1) To drop through : To fall to pieces; to come to ruin; to fail; to be unsucce ful; as, The project dropped through. (2) To fall through : To be unsucce ful; to fail; to drop through. (3) To go through with anything : To prosecute it to the end. (4) To go through the mill : To have or get experience in any particular matter. through-bolt, s. Machinery: A bolt pa ing entirely through and fastened on opposite sides of the object or objects secured by it. *through-bred, a . [THOROUGH-BRED.]