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| Keywords: 20-TallyTakeupDrive.JPG Differential mechanical device differential used to control the take-up reel of a Punched tape paper tape reader made by Tally company Tally circa 1962 A Pulley Belt and pulley systems belt and pulley syatem powers the rear shaft at constant speed This turns the right bevel gear which spins freely on the middle or output shaft The axle of the single planet gear is locked to the output shaft The left bevel gear also spins freely on the driven shaft unless it is stopped by a brake shoe attached to the front shaft When there is slack in the tape the brake is engaged stopping the left bevel gear and causing the planet gear to drive the output shaft taking up the slack in the tape When there is no slack the brake is released and the left bevel gear rotates freely allowing the planet gear to spin and removing the torque from the output shaft 2014-04-20 11 19 59 own Douglas W Jones cc-zero Uploaded with UploadWizard Differentials Punch tape hardware Location not applicable | ||||
