Berkas:The Kinematics of Machinery Fig 1.png

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Deskripsi
English: Hand-drawn diagram by James Watt explaining his discovery of the "parallel motion" in a letter to his Sohn: "The idea originated in this manner. On finding double chains, or racks and sectors, very inconvenient for communicating the motion of the piston-rod to the angulat motion of the working-beam, I set to work to try if I could not contrieve some means of performing the same form motions turning upon centres, and after some time it occured to me that AB, CD, being two equal radii revolving on the centres B and C, and connected together by a rod AD, in moving through arches of certain length, the variations from straight line would be nearly equal and opposite, and that the point E would describe a line nearly straight, and that if for convenice the radius CD was only half of AB, by moving the point E nearer to D, the same would take place; and from this the construction, afterwards called the parallel motion was derived."
Deutsch: Handzeichnung von James Watt aus einem Brief an seinen Sohn, in dem er erklärt, wie er auf die Idee des Wattgestänges gekommen ist.
Tanggal
Sumber James Patrick Muirhead, The Life of James Watt with Selections from his Correspondence, 1858, p. 294 (hier online). Quoted in: Franz Reuleaux, The Kinematics of Machinery : Outlines of a Theory of Machines, 1876, p. 4, Macmillan, London (online here).
Pembuat James Watt
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10 November 1808Kalender Masehi Gregorius

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Tanggal/WaktuMiniaturDimensiPenggunaKomentar
terkini12 Januari 2021 09.41Miniatur versi sejak 12 Januari 2021 09.411.756 × 770 (16 KB)Inductiveloadremove yellow background
6 Februari 2010 17.27Miniatur versi sejak 6 Februari 2010 17.271.756 × 770 (39 KB)DrJungecleaned.
30 Maret 2009 02.08Miniatur versi sejak 30 Maret 2009 02.081.756 × 770 (31 KB)LA2{{Information |Description=Fig. 1 from the scanned book, a hand-drawn diagram of "parallel motion" by James Watt. |Source=File:The Kinematics of Machinery.djvu |Date=1876 (actually much earlier) |Author=James Watt |Permission={{PD-old}} |other_versio

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