. Automotive industries . on system interrupter was developed andmarketed by the Atwater Kent Mfg. Co. This interrup-ter is illustrated in Fig. 17. The illustration shows a catch and release devicewhich, during its rotation, catches a pawl and advancesit against the tension of a coil spring to a position above May 26, 1921 AUTOMOTIVE INDUSTRIESTHE AUTOMOBILE 1113 a latch. After reaching this position the pawl is auto-matically released and is then drawn back toward itsnormal rest position due to the tension of the coil returning to this rest position the heel of the catchand release
. Automotive industries . on system interrupter was developed andmarketed by the Atwater Kent Mfg. Co. This interrup-ter is illustrated in Fig. 17. The illustration shows a catch and release devicewhich, during its rotation, catches a pawl and advancesit against the tension of a coil spring to a position above May 26, 1921 AUTOMOTIVE INDUSTRIESTHE AUTOMOBILE 1113 a latch. After reaching this position the pawl is auto-matically released and is then drawn back toward itsnormal rest position due to the tension of the coil returning to this rest position the heel of the catchand release tooth so guides the pawl that it is compelledto strike against the latch. The motion imparted to thelatch by the pawl in turn causes the contacts to closemomentarily and separate again after the pawl passesthe latch. This make-and-break action takes place ata very high speed, and at a speed that is independent ofthe speed of rotation of the catch and release special type of battery and coil circuit interrupter. INSULATED LEADFig. 18—Typical battery and Coilsystem interrupter. therefore assures that the spark will be of the samevalue for all engine speeds within the limits that thedevice is designed for and that the battery energy re-quired per spark will also be practically constant forall speeds. It must also be evident that when the engine is at restthe pawl will be at rest and so cannot close the circuit,and it can never remain in a position that will keep thecontacts together. The particular mechanism shown in Fig. 17 has acatch and release with four teeth and so is designed forfour-cylinder engines, being operated at half enginespeed in this case. The figure shows both open andclosed positions of the contacts. Fig. 18 shows a simple battery and coil system inter-rupter that is representative of the more usual has a six-lobe cam and is designed for a six-cylinderengine, but can be converted to a four-cylinder systemby using a cam with four lobes. It i
Size: 1639px × 1524px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
