. 20th century catalogue of supplies for watchmakers, jewelers and kindred trades. Fig, —Escape Wheel. B —Detent. E —Detent Spring, G-lmpulse Crank. H—Discharg- .^^ outside diameterCfanklewel ^^^^^^ -^^^^- ^-Impulse cylinder have nearl- ? ^amp mpasiirempnh T the pulse is given by the inclined plane of theescape wheel teeth on entering : measurement. The for the complthe teeth of the esc:,.above the plane ot tliand opposite the pi:sides of the cylindeiy. enough ) provide suitableng 01 the balance,eel are supported;el by small posts,of the wheel the. Fig. . Escape Whe


. 20th century catalogue of supplies for watchmakers, jewelers and kindred trades. Fig, —Escape Wheel. B —Detent. E —Detent Spring, G-lmpulse Crank. H—Discharg- .^^ outside diameterCfanklewel ^^^^^^ -^^^^- ^-Impulse cylinder have nearl- ? ^amp mpasiirempnh T the pulse is given by the inclined plane of theescape wheel teeth on entering : measurement. The for the complthe teeth of the esc:,.above the plane ot tliand opposite the pi:sides of the cylindeiy. enough ) provide suitableng 01 the balance,eel are supported;el by small posts,of the wheel the. Fig. . Escape Wheelwith cylinder in —Escape F —Tooth removed to esc: show post. Eal Escapement, Duplex -A wheels to this escapement: oicheck the movement of the tra:the two wheels were united in ,illustration. As in th_alternate vibrations of the balancform of escapement is not nov:alled Chinese Watch Fig. of Cylinder .bowing teeth in place. Fig. 36. A-Escape Wheel. B- Duplex Escapeme Cylinder. C — Enter- A-Escape Wheel ing lip of cylinder. D- B-Impulse Pallet. Discharging lip of cyl- C-Celent Teeth, inder. E - Passage for D-Impulse Teeth, escape wheel. G- E—Duplex Escape Balance collect. Jewel. th sof teeth. s invented by LeRoy, there were two escape le to give impulse to the balance; the other to n, hence the name. Duplex. Subse<iuently me. having two sets of teeth as shown in the .— -jcapement, the impulse is given at . With one or two notable exceptions this used. This escapement used in cheap, s, IS really a Tr


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Keywords: ., bookcentury1800, bookdecade1890, bookid20thcenturyc, bookyear1899