Agricola, Georg
,
De re metallica Libri XII, Quibus Officia, Instrumenta, Machinae, ac omnia ...
,
1556
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p
id
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N12A89
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type
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main
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s
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N12A90
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<
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pagenum
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124
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xlink:href
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001/01/134.jpg
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cuti tertia & ab equis uerſatur, & duos habet axes: ſtatutum ſcilicet, circum
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lb
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quem, in terræ cauernam penetrantem, ſimiliter inferius eſt tympanum den
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tatum: atque ſtratum, circum quem tympanum quod ex fuſis conſtat. </
s
>
<
s
id
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N12A9C
">Vt ue
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rò machina maxima duo habet tympana circum axem ſtratum, prorſus illi
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lb
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us tympanis ſimilia, ſed minora, quod uaſa ex puteo
<
expan
abbr
="
ducẽtos
">ducentos</
expan
>
& quadragin
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lb
/>
ta tantummodo pedes alto trahere poſsit: quorum alterum ex orbibus, ad
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lb
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quos affixa ſunt tigna compoſitum eſt: alterum, quod exiſtit prope tympa
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lb
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num quod ex fuſis conſtat, altum eſt undique circum axem pedes duos, craſ
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lb
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ſum unum: huic harpago impingitur: qui ipſum
<
expan
abbr
="
retinẽs
">retinens</
expan
>
machinam, cùm res
<
lb
/>
id poſtulauerit, ſiſtit. </
s
>
<
s
id
="
N12AB5
">Toties uerò poſtulat, quoties uel ſacci è corio
<
expan
abbr
="
ſaxorũ
">ſaxorum</
expan
>
<
lb
/>
fragmentis aut terris pleni, extracti euertuntur, uel aquæ ex uaſis, item extra
<
lb
/>
ctis effunduntur: nam hæc machina non onera modo ſicca leuat, ſed etiam
<
lb
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humida, perinde ac aliæ quatuor machinæ iam nunc à me deſcriptæ: quine
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lb
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tiam hac in puteum demittuntur tigna, ad eius catenam ductariam alligata. </
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>
<
s
id
="
N12AC4
">
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lb
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Sed harpago craſſus pedem, longus ſemipedem extat è tigno, catena appen
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lb
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ſo ex altero capite tigni, quod uerſatur circum axiculum ferreum, quem
<
expan
abbr
="
cõtinent
">con
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lb
/>
tinent</
expan
>
chelæ tigni ſtatuti. </
s
>
<
s
id
="
N12AD0
">Ex altero uerò mobilis illius tigni capite
<
expan
abbr
="
iterũ
">iterum</
expan
>
ca
<
lb
/>
tena appenſum eſt tignum longum, & ex eo rurſus catena alterum tignum
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lb
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breue: cui, cùm machina ſiſtenda fuerit, operarius inſidet, atque ſic ipſum de
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lb
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primit. </
s
>
<
s
id
="
N12ADD
">Mox ei inijcit aſſerem uel tigillum, quod ſubter duo tigna pertinens
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lb
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ab eis ne attolli poſsit retinetur: quo modo harpago ſubleuatus, tympa
<
lb
/>
numque amplexus tam ualidè prehendit, ut ſæpe ex ipſo ſcintillæ
<
expan
abbr
="
exiliãt
">exiliant</
expan
>
. </
s
>
<
s
id
="
N12AE8
">Ha
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bet autem tignum dependens, ad quod harpago eſt affixus aliquot forami
<
lb
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na, in quibus catena includitur, ut ipſe quemadmodum conuenit ſubleuari
<
lb
/>
poſsit. </
s
>
<
s
id
="
N12AF1
">Supra tympanum eſt tabulatum, ne id aqua deſtillans madefaciat. </
s
>
<
s
id
="
N12AF4
">
<
lb
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Nam ſi madefactum fuerit, harpago machinam minus retinebit. </
s
>
<
s
id
="
N12AF8
">Iuxta uerò
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lb
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alterum tympanum eſt palus, ex quo dependet catena, in cuius annulo po
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lb
/>
ſtremo incluſus eſt alter harpago, hoc eſt uncinatum ferrum,
<
expan
abbr
="
longũ
">longum</
expan
>
pedes
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lb
/>
tres. </
s
>
<
s
id
="
N12B05
">Is annulo, ad fundum tam uaſis quàm ſacci affixo, iniectus illud retinet
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lb
/>
ut aqua effundi poſsit, hunc ut ſaxorum fragmenta euerti.</
s
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<
s
id
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N12B0C
">T
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emph
type
="
italics
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ympanum dentatum, quod est ad axem ſtatutum
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emph.end
type
="
italics
"/>
A. A
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emph
type
="
italics
"/>
xis ſtratus
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emph.end
type
="
italics
"/>
B.
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T
<
emph
type
="
italics
"/>
ympanum quod ex fuſis conſtat
<
emph.end
type
="
italics
"/>
C. T
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emph
type
="
italics
"/>
ympanum prope id ipſum
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emph.end
type
="
italics
"/>
D.
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lb
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T
<
emph
type
="
italics
"/>
ympanum quod ex orbibus conſtat
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emph.end
type
="
italics
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E. H
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emph
type
="
italics
"/>
arpago
<
emph.end
type
="
italics
"/>
F.
<
lb
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T
<
emph
type
="
italics
"/>
ignum mobile
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emph.end
type
="
italics
"/>
G. T
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emph
type
="
italics
"/>
ignum breue
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emph.end
type
="
italics
"/>
H. A
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emph
type
="
italics
"/>
lter harpago
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emph.end
type
="
italics
"/>
I.</
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