Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. -
Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German. Mean line confidence on this page: 0.89.
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The machine reads it as
- produce ic rillir curs che Bramerer prolonsed in II
- thac Incersection FI is a third Point, chro Wrhich as
- also etis a and b, it a Circle be drawn, ic will be
- a Dreat Circle, 25 e a b g.
- Wrhich is casiy proved, by drawine che Line
- CC5; For char Line is a Diamerer: Becaule its
- Pares mulriplicd into one anorher, are equal 10
- ac - cH =OC9, bY 35. e 3, and Cor. 8 e 6.
- Euclido
- Problem 6. T0 dram a great Cirele Perpendicula
- 10, or at Rishe Ansles vith anorher.
- Lec ir pals chro irS Poles, andris donc.
- OE wtrich chere will be Four Cales.
- 2. Fodran a Circle Perpendiculax ro the Pri
- mirire; wtrich is done by any Arair Line pastinS
- chro che Centre.
- 2. F0 dran a Circle Perpendicular 10 2 RigHE
- Circle; is only 10 draw a Diamerer ac Righc An.
- Eles Wich thac RighE Circle.
- Problem 7. Tomeasure the Ouantity of the vecreos
- 3. Fo drarr an Oblique Cirele Perpendiculax 10
- a Righe one; only dra a Circle which MaIl pa(S
- thro boch che Poles ot such a Righe Circle, and
- tis donc.
- Thus the Oblique Circle D Z R, is Perpendieu.
- lar ro the Righe one O9, becaule it passes chro
- its Poles D and R. Sec the last Figure.
- 4. Fodea one Oblique Cirele Perpendiculat
- EO anorher.
- of any Archof a creat Circle.
- c. IF che Arch De Parr ofche Primicire, eis mea-
- Cured on the Line ot Cords.
- 2. IE che Arch BC any ParE OF a RighE Circle,
- the Degrees ot ic are meatured on the Scale of hals
- Tancents, Supposins the Centre ot che Primitive
- Cirele to be in ihe beginins ot che Scale, (O chat is
- ehe Degrees are ro be reckoned trom the Center,
- ron must acconne accordins t0 he order oE the
- Scale of hals Tansents.
- Bur il the Degreesare to be accounced from the
- Pcripheer of che Primitire, as will otten happen,
- chen vou must besin co accoune trom the end et
- che Seale of hals Tansents callirs 80, 10, 30,
- 20, 580.
- duce the emo extremities os the Ark required tothe Pri-
- mitive Circle, and then meature he distance be
- ereen chose Poines on the Chords.
- Thus in che last Figure, is che Onantity oFe B
- an Arch oFthe Oblique Circle C c B vere requir-
- ed; lay a Ruler 1o Pthe Pole, and reduce che
- Poinese and B, eo etic Primitire Circle, (0 MaII
- the Distance berveen o and B, mealured on the
- Choids, be che Ouanriry oE Deprees in che ArK
- Then erect OH, Perpendiculartys 10 a O, anid
- PROP. XVII.
- eROF. AVIII
- 3. F0 meatute any Part oF an Oblique Circte;
- Rrst And ies Pole, and chere laving ihe Ruler. Re-
- P R O P. XIX.
- Problem 8. T0 measure ans SPHCHCat AHIC.
- L TFthe Anoular POINE BC AETHE CeHErC OE che
- Primitire, chen che Biltance berween the Lcgs
- caren trom che lumb, and meatured on rhe ChOrds,
- is che Ouanriry oF che Angle.
- Find hirst P che Pole oF the given Oblique
- cle Ce B, and then dean any hon che Diametet
- D a. (0 a Circle drawn chro the chree Points:
- D L anet IL MaI Be the Circle required; FOr Pa
- it must be Perpendiculdr 10 it.
- Nm chro chePoles oFche Oblique Cirele CeB,
- he Pmre Ccl do luppolethe Ansle AC B
- 2. I ihe Angular Poine Be at the Periphery oF
- vere required
- FTereche Poles oEboch Circles beine in chelame
- Diameter. And che Pole ot the Oblique Circle
- CBO, whick tet be P. Yhen che Distance R P
- mealureet
Cite
Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. - . Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/806933011:0765?run=74