Hammer

Hammer
/ham"euhr/, n.
Armand, 1898-1990, U.S. businessman and art patron.

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I
Tool for pounding or delivering repeated blows.

Hand hammers have a handle and striking head. Surfaces of hammerheads vary in size, angle of orientation to the handle (parallel or inclined), and type of face (flat or convex). Carpenters' hammers often have a claw on the head for extracting nails. Weights range from a few ounces or grams up to 15 lbs (7 kg) for hammers used in breaking stones. Steam hammers often use, in addition to gravity, a downward thrust from a steam-activated piston. Pneumatic (air-driven) hammers include the hammer drill, for rock and concrete, and the riveting hammer, for construction operations involving steel girders and plate.
II
(as used in expressions)
Carolus Martellus Charles the Hammer
Hammer Armand
hammer beam roof

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tool
      tool designed for pounding or delivering repeated blows. Varied uses require a multiplicity of designs and weights. Hand hammers consist of a handle and striking head, with the head often made of metal with a hole in the centre to receive a wooden handle. Sometimes the entire hammer is forged or cast in one piece of metal. Surfaces of hammerheads vary in size, in angle of orientation to the handle (parallel or inclined), and in type of face (flat or convex). Carpenters' hammers often have a claw on the head for extracting nails. Weights range from a few ounces or grams up to 15 pounds (7 kg) for hammers used in breaking stones.

      Heavier hammers are power tools, among the largest being the pile driver. Trip-hammers depend on gravity for their impulse, but steam hammers often employ, in addition to gravity, a downward thrust from a steam-activated piston. Pneumatic hammers driven by air include the hammer drill, used on rock and concrete, in which the hammerhead is a drill head, and the riveting hammer, used principally in construction operations involving steel girders and plate.

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Universalium. 2010.

Игры ⚽ Поможем сделать НИР
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  • Hammer [1] — Hammer, das bekannte Werkzeug, das dadurch wirkt, daß es, nachdem seine entsprechend große Masse in Bewegung versetzt ist, seine lebendige Kraft stoßweise auf einen andern Körper überträgt. Die Bewegung kann die stoßende Masse entweder durch die… …   Lexikon der gesamten Technik

  • 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 Collaborative International Dictionary of English

  • hammer — [ham′ər] n. [ME hamer < OE hamor, akin to Ger hammer, ON hamarr, crag, cliff < IE * k̑omor , stone hammer < base * ak m < ak̑ , sharp, sharp stone > Gr akmē, point, akmōn, anvil] 1. a tool for pounding, usually consisting of a… …   English World dictionary

  • Hammer SV 04 — Hammer SpVg Voller Name Hammer Spielvereinigung 03/04 e. V. Gegründet 1903 Stadion EVORA Arena …   Deutsch Wikipedia

  • hammer — ► NOUN 1) a tool consisting of a heavy metal head mounted at the end of a handle, used for breaking things and driving in nails. 2) an auctioneer s mallet, tapped to indicate a sale. 3) a part of a mechanism that hits another, e.g. one exploding… …   English terms dictionary

  • Hammer [2] — Hammer (hierzu Tafel »Mechanische Hämmer I u. II«), das bekannte, zum Schlagen dienende, aus dem Hammerkopf und Hammerstiel (Helm) bestehende Werkzeug. Der pyramidale Hammerkopf besteht gewöhnlich aus verstähltem Eisen oder Stahl, oft aus Holz,… …   Meyers Großes Konversations-Lexikon

  • HAMMER — Développeur Matthew Dillon Nom anglais HAMMER Introduction 21 juillet 2008 (DragonFly BSD 2.0) Structure Contenu des répertoires Arbre B …   Wikipédia en Français

  • Hammer — Sm std. (9. Jh.), mhd. hamer, ahd. hamar, as. hamar, hamur Stammwort. Aus g. * hamara m. Hammer , auch in anord. hamarr, ae. hamer, homer, hamor, afr. hamer, homer. Anord. hamarr bedeutet auch Stein, Klippe (westgermanisch vermutlich in… …   Etymologisches Wörterbuch der deutschen sprache

  • Hammer — (англ. молоток): Hammer  фамилия Hammer  рок группа, созданная Кози Пауэлом Классическая серия фильмов ужасов студии Hammer HAMMER файловая система ОС DragonFlyBSD См. также Hummer марка автомобилей …   Википедия

  • Hammer-on — Hammer on (англ. hammer on  «набивать»), также восходящее легато  приём игры на струнных инструментах, в особенности на гитаре, заключающийся в извлечение звука путём удара пальцем левой руки по струне. Hammer on обеспечивает… …   Википедия

  • Hammer — Mechanische Hämmer I. Mechanische Hämmer II …   Meyers Großes Konversations-Lexikon

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