File:L'art de fortifier, de defendre, et d'attaquer les places - suivant les methodes françoises, hollandoises, italiennes and espagnoles, le tout enrichy de figures en taille douce (1677) (14598080449).jpg

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Identifier: lartdefortifierd00dech (find matches)
Title: L'art de fortifier, de defendre, et d'attaquer les places : suivant les methodes françoises, hollandoises, italiennes & espagnoles, le tout enrichy de figures en taille douce
Year: 1677 (1670s)
Authors: Dechales, Claude-François Milliet, 1621-1678
Subjects: Fortification Military art and science
Publisher: A Paris : Chez Estienne Michallet ...
Contributing Library: Getty Research Institute
Digitizing Sponsor: Getty Research Institute

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Mvi joo Traité dès FortificAthns) PROPOSITION XXVIII. Cinquième façon de fortifier une Lignstrop loKgue. IE c^ de cette Propofition efl:, quand.les Baltons ont les Angles Ç\ aigus,quon ne peut les corriger , quoy quilsnayent que la dcfenfe razanre: en forteque ny un Bafton plat, ny des fécondsflancs pris delTus la Courtine ne puifTentpas les défendre. Puifque ces Baftions nontquune defenle razante, quoy que troplon-gue , il ne faut pas la leur ôter : ccft pour-quoy on peut recourir à un bon Dehors :comme un gros Ravelin , ou un ouvra-ge à corne, auquel on pourra donner unRempart un peu plus tort, ôc plus hautque celuy dun fîinple Dehors , & unRofsé plus large, & plus profond. PROPOSITION XXIX. $t%,itme façon de fortifier fine ligne troplongne, IE fuppolè que les Baftions, &: le Rem-part ne font pas-encore bâtis, & quauJiea ^une ligne droite, on ne fera pas LiTffigure,JJescrtre.
Text Appearing After Image:
Livre éjUAtrlfme. 501 fëchc davoir le Segment du Polygone ^dont elle eft capable-, ainfi au lieu dun,ou plufîcurs Boulevarts plats,on en pou-ra former dautres à la façon ordinaire jce qui non feulement rendra la Villeplus grande, mais encore plus belle; lareduifant a quelque forte de régularité.Or la ligne quon nous propofe fe doit for-tifier en dehors , ou en dedans. Suppofonsdonc que fur la ligne AB>de deux cens qua-rante toifes, les Baftions fe doivent faire endehors. Il faut confiderer quelle partie de p/^^j.;;rolygone on peut décrire (ur cette ligna^ /^, 114»ce que lon connoilt facilement par \qs foû.-tendantes. Ces foûtendantes font des li-gnes qui foûticnnent deux, trois, ouplu-jlîeurscodez dun Polygone, comme dansla figure 114. la ligne FB eft la foiàtcndanrede deux coftez decét Hexagone;& FG Gde trois. Il faut donc voir la longueur desfoûtendantes de chaque Polygone j aveccelle div diamètre & du cofté : Par exem-ple , fuppofons que lHexagone qui f

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Flickr tags
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  • bookid:lartdefortifierd00dech
  • bookyear:1677
  • bookdecade:1670
  • bookcentury:1600
  • bookauthor:Dechales__Claude_Fran__ois_Milliet__1621_1678
  • booksubject:Fortification
  • booksubject:Military_art_and_science
  • bookpublisher:A_Paris___Chez_Estienne_Michallet____
  • bookcontributor:Getty_Research_Institute
  • booksponsor:Getty_Research_Institute
  • bookleafnumber:416
  • bookcollection:getty
  • bookcollection:americana
Flickr posted date
InfoField
30 July 2014



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