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# Title: [Christiani Hugenii Zulichemii, Const. F. Horologium Oscillatorium. Sive De Motu Pendulorum Ad Horologia Aptato Demonstrationes Geometricae] Christiani Hvgenii Zvlichemii, Const. F. Horologivm Oscillatorivm. Sive De Motv Pendvlorvm Ad Horologia Aptato Demonstrationes Geometricæ (shelfmarks Leibn. Marg. 70; ZEN Leibn. Marg. 70)
# Folio 75, page id 799199311:0091
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HOROLOG. OSCTLLATOL
phars art sde comoress supersiciet circulum
alem invenire.
DE LINXARUM
CUIRYARUM
RVOLUEEODE
ICspatces acu Cujus axis a B, centrum c, sectio per
Daxc MlliplIS ADSL.
Sit rurlus Focorum alcerurer P, dirilaque bitariam Fc in c, in-
celligacui Palaobra  esca vat Habeat dic A B, Vecticem
ExIIL D E, _ rectam curVX
raclo Cucus qu apeete patoco plopBtiri aequalis LIF.
agulem invenire.
Sto conoides hyperbolicum cujus axis A B, sectio per axem
hyperbola c a Cujus latus cranlverlum E A, CCNErI F,
Sulatur in axc recta a H, ~ Guuns Maio laceri recto A C. d UE
H F ad A F LOHSICHIMIC ICa, IIC A Pad P K potentia. F incelligatur
vertice _ alia hyperbola de(CriDEa K E M, COdCM AXC _E CCNETO F
cum priore, quae que lacera rectum ee tranversum illi reciproce
proportionalia habeat. Occurrar aurem ipsi producta B C in M,
licque AL paraIlela B C. Frit jam licur Sparium a L MB, cribus rectis
lineis e curra hyperbolica comprehensum, ad dimidium quadra-
TM CxB C, ita luperficies conoidis curra ad circulum bascos (ux,
cujus diamerer c’D. Vnde constructio reliqua Facile ablolvetur,
positâ hyperbola quadratura.
Ouum isicur conoidis parabolici superficies ad circulum redi-
sacur, aque ac luperticies sphaerx, ex notis seometrix regulis; in
superticie sphaeroidis oblonsi, ur idem tiar, ponendum est arcus
velo punctum c. SAque inteK
Parabolica a C B aequalem, media proportionalis linea rr. Fric haec
Conoidis hyperbola fpsater curva circulum
latus Lectum aO.