Stevin, Simon - Mathematicorum hypomnematum... : T. 4: De Statica : cum appendice et additamentis

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102102*3 LIBER STATICÆ*folidioreq̀ue & impenſis minoribus parabilis, quâque eodem temporis ſpatio
plus efficiatur, potentiæ tamen infinitæ conſimiliter ipſi chariſtio.

Sumito trabem A B ſoliditate & magnitudine operi inſtituto & effectioni-
bus mechanicis congruente; efformato deinde tympanum ferreum C per am-
bitum dentatum, cujus diameter ſit dicis gratiâ, digitorum trium, inque ambi-
tu dentes ſex, per centrum tranſidetur axis ferreus CD ad rerminos C & D
quadrangulus, ſcapus autem intermedius rotondus eſto; hinc tympana E v. g.
dentibus 18, F dentibus ſex traji-

149[Figure 149] ciantur eodem axe EF qui ſimilis
ſit antecedenti CD, terminis vi-
delicet quadrangulis teretem ſca-
pum claudentibus. huic EF effin-
gantur ſimiles axes GH, IK, ut
tympana G, K, ambiantur denti-
bus ſex, H, I, 18. Et quia tympana
ſuperiora plus ponderis ſuſtine-
bunt, ut poſtea intelligetur, etiam
firmiora majoraq́; deformantor,
atque ideo cum axes ordinabun-
tur paralleli H quidem mordicus
implicabitur ipſi F, diſtabit autem
à tympano K, item G implicabi-
tur tympano I non autem tym-
pano E, quod ipſum partiũ diſpo-
ſitio quo que poſtulabat.

Fiat deinde manubriũ L M N,
cavo quadrangulo cui quadran-
gula axium capitula D, F, H, K
exactè congruant, ſitq́ue flexura
M L pedem longa, ſchapus autem
M N fiat longitudine mox paulò infra definien-

150[Figure 150] dâ. Denique in trabe A B tranſverſim quatuor
foramina terebrĕtur eâdem inter ſe diſtantia qua
axes, ut tympanorum dentes commodè inter ſe
implicati & mutuo ſeſe impellere poſſint, cujuſ-
modihic ſunt O, P, Q, R quibus axes IK, GH,
EF, CD inſerti congruant, axium autem ſcapi,
teretes inter duos tympanos intermedii longitu-
dine ſuâ trabis craſſitiem æquent; quadrati autĕ
iſti axium termini K, H, F, D, tres aut ſum-
mum quatuor digitos extra tympanos promi-
neant. His ita deformatis detracto tympano I
axem I K inſerito in foramen O, ſimiliter GH
in P, EF in Q, CD in R, affigantur deinde
cuique axi ſua tympana, dentesq́ue tympani F
in fronte mordicus impliciti dentibus H ipſum
impellant; ſimiliter in tergo ut C impellat tym-
panum E, & G ipſum I, formaq́ue perfecti Pan-
cratii (ſic enim inſtrumentum hoc à ſuâ

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