Watch and clock escapements; . llation within the arc of equal time ; a motion which is, aswas recognized even at that epoch, the prime requisite to a preciserating. Thus, in 1720, Julien Leroy occupied himself working outthe proper shapes for the inclines to produce this desired along the same path, Ferd. Berthoud constructed an History of Escapements. 167 escapement represented by the Fig. 165. In it we see the sameinclines A B of the former construction, but the locking is effectedagainst the slides C and D. the curved faces of which produceisochronous oscillations of
Watch and clock escapements; . llation within the arc of equal time ; a motion which is, aswas recognized even at that epoch, the prime requisite to a preciserating. Thus, in 1720, Julien Leroy occupied himself working outthe proper shapes for the inclines to produce this desired along the same path, Ferd. Berthoud constructed an History of Escapements. 167 escapement represented by the Fig. 165. In it we see the sameinclines A B of the former construction, but the locking is effectedagainst the slides C and D. the curved faces of which produceisochronous oscillations of the pendulum. The tooth b imparts itslift and the tooth c will lock against the face C; after havingpassed through its recoil motion this tooth c will butt against theincline A and work out its lift or impulse upon it. THE GABLE ESCAPEMENT. The gable escapement, shown in Fig. 166, allows the use of aheavier pendulum, at the same time the anchor embraces within itsjaws a greater number of the escape-wheel teeth ; an arrangement.
Size: 1859px × 1344px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidwatchclockes, bookyear1904
