Search Result for "drop hammer":
Wordnet 3.0

NOUN (1)

1. device for making large forgings;
[syn: drop forge, drop hammer, drop press]

The Collaborative International Dictionary of English v.0.48:

Hammer \Ham"mer\ (h[a^]m"m[~e]r), n. [OE. hamer, AS. hamer, hamor; akin to D. hamer, G. & Dan. hammer, Sw. hammare, Icel. hamarr, hammer, crag, and perh. to Gr. 'a`kmwn anvil, Skr. a[,c]man stone.] 1. An instrument for driving nails, beating metals, and the like, consisting of a head, usually of steel or iron, fixed crosswise to a handle. [1913 Webster] With busy hammers closing rivets up. --Shak. [1913 Webster] 2. Something which in form or action resembles the common hammer; as: (a) That part of a clock which strikes upon the bell to indicate the hour. (b) The padded mallet of a piano, which strikes the wires, to produce the tones. (c) (Anat.) The malleus. See under Ear. (d) (Gun.) That part of a gunlock which strikes the percussion cap, or firing pin; the cock; formerly, however, a piece of steel covering the pan of a flintlock musket and struck by the flint of the cock to ignite the priming. (e) Also, a person or thing that smites or shatters; as, St. Augustine was the hammer of heresies. [1913 Webster] He met the stern legionaries [of Rome] who had been the "massive iron hammers" of the whole earth. --J. H. Newman. [1913 Webster] 3. (Athletics) A spherical weight attached to a flexible handle and hurled from a mark or ring. The weight of head and handle is usually not less than 16 pounds. [Webster 1913 Suppl.] Atmospheric hammer, a dead-stroke hammer in which the spring is formed by confined air. Drop hammer, Face hammer, etc. See under Drop, Face, etc. Hammer fish. See Hammerhead. Hammer hardening, the process of hardening metal by hammering it when cold. Hammer shell (Zool.), any species of Malleus, a genus of marine bivalve shells, allied to the pearl oysters, having the wings narrow and elongated, so as to give them a hammer-shaped outline; -- called also hammer oyster. To bring to the hammer, to put up at auction. [1913 Webster]
The Collaborative International Dictionary of English v.0.48:

Drop \Drop\ (dr[o^]p), n. [OE. drope, AS. dropa; akin to OS. dropo, D. drop, OHG. tropo, G. tropfen, Icel. dropi, Sw. droppe; and Fr. AS. dre['o]pan to drip, drop; akin to OS. driopan, D. druipen, OHG. triofan, G. triefen, Icel. drj[=u]pa. Cf. Drip, Droop.] 1. The quantity of fluid which falls in one small spherical mass; a liquid globule; a minim; hence, also, the smallest easily measured portion of a fluid; a small quantity; as, a drop of water. [1913 Webster] With minute drops from off the eaves. --Milton. [1913 Webster] As dear to me as are the ruddy drops That visit my sad heart. -- Shak. [1913 Webster] That drop of peace divine. --Keble. [1913 Webster] 2. That which resembles, or that which hangs like, a liquid drop; as a hanging diamond ornament, an earring, a glass pendant on a chandelier, a sugarplum (sometimes medicated), or a kind of shot or slug. [1913 Webster] 3. (Arch.) (a) Same as Gutta. (b) Any small pendent ornament. [1913 Webster] 4. Whatever is arranged to drop, hang, or fall from an elevated position; also, a contrivance for lowering something; as: (a) A door or platform opening downward; a trap door; that part of the gallows on which a culprit stands when he is to be hanged; hence, the gallows itself. (b) A machine for lowering heavy weights, as packages, coal wagons, etc., to a ship's deck. (c) A contrivance for temporarily lowering a gas jet. (d) A curtain which drops or falls in front of the stage of a theater, etc. (e) A drop press or drop hammer. (f) (Mach.) The distance of the axis of a shaft below the base of a hanger. [1913 Webster] 5. pl. Any medicine the dose of which is measured by drops; as, lavender drops. [1913 Webster] 6. (Naut.) The depth of a square sail; -- generally applied to the courses only. --Ham. Nav. Encyc. [1913 Webster] 7. Act of dropping; sudden fall or descent. [1913 Webster] Ague drop, Black drop. See under Ague, Black. Drop by drop, in small successive quantities; in repeated portions. "Made to taste drop by drop more than the bitterness of death." --Burke. Drop curtain. See Drop, n., 4. (d) . Drop forging. (Mech.) (a) A forging made in dies by a drop hammer. (b) The process of making drop forgings. Drop hammer (Mech.), a hammer for forging, striking up metal, etc., the weight being raised by a strap or similar device, and then released to drop on the metal resting on an anvil or die. Drop kick (Football), a kick given to the ball as it rebounds after having been dropped from the hands. Drop lake, a pigment obtained from Brazil wood. --Mollett. Drop letter, a letter to be delivered from the same office where posted. Drop press (Mech.), a drop hammer; sometimes, a dead-stroke hammer; -- also called drop. Drop scene, a drop curtain on which a scene is painted. See Drop, n., 4. (d) . Drop seed. (Bot.) See the List under Glass. Drop serene. (Med.) See Amaurosis. [1913 Webster]
WordNet (r) 3.0 (2006):

drop hammer n 1: device for making large forgings [syn: drop forge, drop hammer, drop press]