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A Treatise on Concrete

  • 1 Coignet, François

    [br]
    b. 1814
    d. 1888
    [br]
    French pioneer in the development of the structural use of iron reinforcement of concrete.
    [br]
    As early as 1847, Coignet built some houses of poured (unreinforced) concrete, but in 1852, in a house at 72 rue Charles Michel, in St Denis, he first employed his own system of what he called béton armé, meaning reinforced concrete. Coignet exhibited his technique of reinforcement using iron bars at the Paris Exposition of 1855 and was quoted as forecasting that cement, concrete and iron were destined to replace stone. A year later he patented a method of reinforcing concrete with iron tirants, a reference to the metal ropes or bars being under tension, and in 1861 he published a treatise on concrete. Coignet is credited with building several examples of concrete shell casing to iron structures in conjunction with different architects—e.g., the Church of Le Vésinet (1863, Seine et Oise).
    [br]
    Further Reading
    Nikolaus Pevsner, 1984, Pioneers of Modern Design, Penguin.
    DY

    Biographical history of technology > Coignet, François

  • 2 Taylor, Frederick Winslow

    [br]
    b. 20 March 1856 Germantown, Pennsylvania, USA
    d. 21 March 1915 Philadelphia, Pennsylvania, USA
    [br]
    American mechanical engineer and pioneer of scientific management.
    [br]
    Frederick W.Taylor received his early education from his mother, followed by some years of schooling in France and Germany. Then in 1872 he entered Phillips Exeter Academy, New Hampshire, to prepare for Harvard Law School, as it was intended that he should follow his father's profession. However, in 1874 he had to abandon his studies because of poor eyesight, and he began an apprenticeship at a pump-manufacturing works in Philadelphia learning the trades of pattern-maker and machinist. On its completion in 1878 he joined the Midvale Steel Company, at first as a labourer but then as Shop Clerk and Foreman, finally becoming Chief Engineer in 1884. At the same time he was able to resume study in the evenings at the Stevens Institute of Technology, and in 1883 he obtained the degree of Mechanical Engineer (ME). He also found time to take part in amateur sport and in 1881 he won the tennis doubles championship of the United States.
    It was while with the Midvale Steel Company that Taylor began the systematic study of workshop management, and the application of his techniques produced significant increases in the company's output and productivity. In 1890 he became Manager of a company operating large paper mills in Maine and Wisconsin, until 1893 when he set up on his own account as a consulting engineer specializing in management organization. In 1898 he was retained exclusively by the Bethlehem Steel Company, and there continued his work on the metal-cutting process that he had started at Midvale. In collaboration with J.Maunsel White (1856–1912) he developed high-speed tool steels and their heat treatment which increased cutting capacity by up to 300 per cent. He resigned from the Bethlehem Steel Company in 1901 and devoted the remainder of his life to expounding the principles of scientific management which became known as "Taylorism". The Society to Promote the Science of Management was established in 1911, renamed the Taylor Society after his death. He was an active member of the American Society of Mechanical Engineers and was its President in 1906; his presidential address "On the Art of Cutting Metals" was reprinted in book form.
    [br]
    Principal Honours and Distinctions
    Paris Exposition Gold Medal 1900. Franklin Institute Elliott Cresson Gold Medal 1900. President, American Society of Mechanical Engineers 1906. Hon. ScD, University of Pennsylvania 1906. Hon. LLD, Hobart College 1912.
    Bibliography
    F.W.Taylor was the author of about 100 patents, several papers to the American Society of Mechanical Engineers, On the Art of Cutting Metals (1907, New York) and The Principles of Scientific Management (1911, New York) and, with S.E.Thompson, 1905 A Treatise on Concrete, New York, and Concrete Costs, 1912, New York.
    Further Reading
    The standard biography is Frank B.Copley, 1923, Frederick W.Taylor, Father of Scientific Management, New York (reprinted 1969, New York) and there have been numerous commentaries on his work: see, for example, Daniel Nelson, 1980, Frederick W.Taylor and the Rise of Scientific Management, Madison, Wis.
    RTS

    Biographical history of technology > Taylor, Frederick Winslow

  • 3 σύνταξις

    A putting together in order, arranging, esp. of soldiers, τοῦ στρατεύματος σ. ποιήσασθαι array in battle-order, Th.6.42, cf. X.Cyr.2.4.1, Arist.Pol. 1322a36; ἡ στρατιωτικὴ ς. X.Cyr.8.1.14;

    ἄνευ συντάξεως ἄχρηστον τὸ ὁπλιτικόν Arist.Pol. 1297b19

    .
    2 generally, system, arrangement, organization, Pl.R. 462c, 591d, Ti. 24c; ἡ συσταθεῖσα ς. its organization, of the Assyrian empire, Id.Lg. 685c;

    τῆς πολιτείας Arist.Pol. 1325a3

    ; ὅλον τὸν τρόπον τῆς ς. (of the symmoriae) D.14.17; σ. μίαν εἶναι τὴν αὐτὴν τοῦ τε λαμβάνειν καὶ τοῦ ποιεῖν τὰ δέοντα one and the same system or rule for.., Id.1.20, cf. 13.9;

    ἡ σ. τοῦ βίου Alex.162.10

    ; the order or system of the world, Sosip.1.31; τῶν ὅλων, as a definition of εἱμαρμένη, Chrysipp.Stoic.2.293;

    σ. βιβλιοθήκης Str.13.1.54

    : also concrete,

    εἰς τὰς σάρκας καὶ τὴν ἄλλην σ. τῶν μερῶν Arist.Mete. 355b10

    ; συντάξιες [ἁρμονίης] musical modes, Hp.Vict.1.18, cf. Artemoap.Ath.14.636e; ἡ σ. τοῦ ἐνιαυτοῦ the composition or system of the year, the calendar year, OGI 56.43 (Canopus, iii B.C.); ἡ σ. τοῦ περιθύρου the framework, structure, Ephes.4(1) No.28 (v A.D.).
    b ἐκτὸς κοινῆς συντάξεως, = extra ordinem, of admission of envoys to the Senate, Supp.Epigr.3.378B18 (Delph., Roman law, ii/i B.C.).
    3 composition, but more freq. concrete, systematic treatise, Arist.Rh.Al. 1446a34, Plb.1.3.2, 1.4.2, al., Hipparch.1.1.8, Phld.Rh.1.130 S., D.H.Comp.4, Str.1.1.23; collection of treatises, composite volume, D.L.7.190 sqq.: pl., Ptol.Tetr. 16, Gal.19.200; rules for construction, Ph.Bel.55.18: but ἡ τοῦ μεγέθους ς. the scale, ib.57.10.
    4 grammatical putting together of words, syntax, περὶ τῆς σ. τῶν λεγομένων, title of work by Chrysipp., Stoic.2.6, cf. Plu.2.731f (pl.);

    τὴν σ. τῶν ὀνομάτων Gal.16.736

    , cf. 720; περὶ συντάξεως, title of work by A.D.; but also, compound forms, Id.Conj.214.7; ποιεῖσθαι μετά τινος τὴν ς. ib.221.19; also, rule for combination of sounds or letters, τὸ χ (in δέγμενος)

    εἰς γ μετεβλήθη, τῆς σ. οὕτως ἀπαιτούσης EM252.45

    , cf. Luc.Jud. Voc.3; also, connected speech, ἐν τῇ σ. ἐγκλιτέον Sch.Il.16.85.
    II = σύνταγμα, body of troops, ἡ εἰς τοὺς μυρίους ς. their contingent towards.., X.HG5.2.37; σ. Ἑλληνική the combined forces of Greece, Plu.Arist.21.
    b company, troupe of entertainers, PColumbia 441 ( JEA18.16).
    2 covenant, previous arrangement,

    ἐκ τῶν Πατρῶν κατὰ τὴν σ. ἔπλει Plb.5.3.3

    ; κατὰ τὴν τοῦ Ἀριανοῦ ς. at the time and place arranged by A., Id.8.16.5;

    ὥσπερ ἀπὸ συντάξεως ἥκοντας τὴν αὐτὴν λέγειν γνώμην Plu.2.813b

    ; ordinance or resolution, SIG577.8 (Milet., iii/ii B.C.).
    3 assigned impost, tribute, levy, D.5.13; χρημάτων ς. Id.18.234; κοινωνεῖν τῆς ς. Aeschin.3.96;

    σ. ὑποτελεῖν Isoc.7.2

    ;

    διδόναι Id.8.29

    , D.58.37, cf. Theopomp.Hist. 92, OGI1.14 (Epist. Alex. Magni);

    κατ' ἄνδρα τελούντων σύνταξιν PTeb.103.1

     (i B.C.), cf. 189 (i B.C.); ὑφίσταται τοῦ ζυτοπωλίου.. σ. δώσειν εἰς τὸ βασιλικὸν τὴν ἡμέραν κριθῶν (ἀρταβῶν) ιβ, i.e. undertakes to deliver the product (in beer) of 12 artabae of barley per day, PCair.Zen.199.4 (iii B.C.), cf. PPetr.3pp.219,221 (iii B.C.), PRev.Laws47.1,48.13 (iii B.C.), PLille9.7 (iii B.C.); λαϊκὴ σ., = λαογραφία, PMich.Teb. 121r11 viii 2 (i A.D.).
    4 subvention, pension, D.8.21,23 (pl.), Plu.Alex.21, Luc.2;

    συντάξεις τῶν ἀναγκαίων D.S.1.75

    ;

    εἰς τὰς συντάξ<ε>ις ἱερῶν PTeb.5.54

     (ii B.C.), cf. UPZ40.6 (ii B.C.), PSI 10.1151.9 (ii A.D.); pay of soldiers and officers, PStrassb.105.2 (iii B.C.), D.S.5.46, Luc.DMeretr.15.3; salary of a barber, PEnteux. 47.3 (iii B.C.); of the librarian of the Museum,

    σ. βασιλική Ath.11.493f

    .
    5 ὅσοι.. ἐν συντάξει ἔχουσιν κώμας καὶ γῆν, i.e. those who hold land in assignment, i.e. are in receipt of revenue from land (without themselves administering it), PRev.Laws43.12 (iii B.C.), cf. PTeb.705.6 (iii B.C., restd.); ὁ ἐπὶ τῆς ς. the official administrator of land so granted, PCair.Zen.73.11 (iii B.C.);

    ὁ ἐπὶ συντάξεως PLille 4.24

     (iii B.C.);

    ἀπαιτούμεθα τὸν τῆς σ. στέφανον BGU1851.3

     (i B.C.); τῶν φερομένων ἐν τῇ τῶν μαχίμων ς. reckoned in the assignment to the μάχιμοι, PTeb.60.27 (ii B.C.); ὁ πρὸς τῇ σ. τῶν κατοίκων ἱππέων ib.31.6 (ii B.C.); ὁ πρὸς ταῖς ς. PRein.7.29 (ii B.C.).

    Greek-English dictionary (Αγγλικά Ελληνικά-λεξικό) > σύνταξις

  • 4 Rondelet, Jean-Baptiste

    [br]
    b. 1734 Lyons, France d. 1829
    [br]
    French architect particularly interested in the scientific and mathematical basis of architectural structure, and who at an early date introduced reinforced concrete into supporting piers in his buildings.
    [br]
    From 1795 Rondelet was Professor at the Ecole Centrale des Travaux Publics and while there was responsible for a major treatise on building construction: this was his Traité théorique et pratique de l'art de bâtir, published in four volumes in 1802–17. From 1806 he taught at the Ecole Spéciale d'Architecture, which was soon afterwards merged with the Ecole Polytechnique. It was when Rondelet took over the work of com-pleting the Panthéon in Paris, after the death of Jacques-Germain Soufflot, that he had the opportunity of putting some of his particular structural ideas into practice. In 1755 the King had appointed Soufflot architect of the great new church to be dedicated to the patron saint of the city, Sainte Geneviève. In this neo-classical structure based upon Greek cross plan, Soufflot intended four slender piers, each encased in three engaged columns, to support the pendentives for the dome to rise over the crossing. It was a fine and elegant building on a large scale, but by the early nineteenth century, when the church had become a pantheon, cracks were appearing in the masonry. When Rondelet succeeded as architect after Soufflot's death, he strengthened and enlarged the piers, employing a faced concrete structure reinforced with metal. He used a metalreinforced mortar with rubble aggregate.
    [br]
    Bibliography
    An article by Rondelet appears in: 1989, Le Panthéon: Symbole des Révolutions, pp. 308–10 (book of the Exhibition at the Hôtel de Sully, Paris), ed. Picard, Caisse Nationale des Monuments Historiques et des Sites en France.
    Further Reading
    M.N.Mathuset-Bandouin, 1980, "Biographie de Jean Rondelet", Soufflot et son temps, Caisse Nationale des Monuments Historiques et des Sites en France, 155ö7.
    DY

    Biographical history of technology > Rondelet, Jean-Baptiste

  • 5 དངོས་གཞི་

    [dngos gzhi]
    substance, main instructions, principal practice, concrete foundation, subject matter of treatise, basic pattern, actual situation, actual ceremony, what actually is involved, actual, basis of a thing, thing itself

    Tibetan-English dictionary > དངོས་གཞི་

  • 6 ἔκδοσις

    ἔκ-δοσις, εως, ἡ, Arc. [full] ἔσδοσις IG5(2).6.16:—
    2 giving in marriage, dowering,

    ἔ. ποιεῖσθαι τῶν θυγατέρων Id.Lg. 924d

    , cf. Arist.Pol. 13352 22 ;

    τὰς ἐ. τῶν γυναικῶν D.44.66

    .
    3 letting, hiring, or farming out, PPetr.3p.148 (iii B.C.) ;

    τὰς ἐ. ἀγοράζειν παρὰ τῶν τιμητῶν Plb. 6.17.4

     ;

    τὰς ἐ. ποιεῖσθαι IG7.303.27

     (Orop.) ;

    ἐ. ἱερῶν ἔργων Plu.Cat. Ma.19

    , cf. IG5(2).l.c.
    4 lending money on ships or exported goods, bottomry, D.27.11, 29.35.
    5 publication of a book, D.H. Amm.1.10, Ael.Tact.Praef.4: in concrete sense, a 'publication', treatise, A.D.Synt.3.4, 313.6, Iamb.VP23.104.
    b edition, of an author's work,

    Ἀριστοφάνειος Heph.

    Poëm.p.74C., cf. A.D.Pron.89.22, etc.
    c translation, J.AJ12.2.4 (dub.).
    II bursting forth,

    πηγῶν Philostr.Im.2.17

     ; delivery,

    ἐμβρύου Sor.1.71

    .
    2 motions of the bowels, Archig. ap. Aët.6.27.

    Greek-English dictionary (Αγγλικά Ελληνικά-λεξικό) > ἔκδοσις

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