File:20-TallyTakeupDrive.JPG

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English

Take-up-reel drive differential from a paper-tape reader

Summary

Description20-TallyTakeupDrive.JPG	English: differential used to control the take-up reel of a paper tape reader made by Tally circa 1962. A belt and pulley system 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.
Date	20 April 2014, 11:19:59
Source	Own work
Author	Douglas W. Jones

Licensing

I, the copyright holder of this work, hereby publish it under the following license:

	This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
	The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. CC0falsefalse

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	18:53, 20 May 2014		882 × 811 (170 KB)	Douglas W. Jones (talk \| contribs)	User created page with UploadWizard

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- Differential (mechanical device)

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Camera manufacturer	FUJIFILM
Camera model	FinePix S3100
Exposure time	1/60 sec (0.016666666666667)
F-number	f/2.8
ISO speed rating	100
Date and time of data generation	11:19, 20 April 2014
Lens focal length	6 mm
Orientation	Normal
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	Shotwell 0.12.3
File change date and time	11:19, 20 April 2014
Exposure Program	Normal program
Exif version	2.2
Date and time of digitizing	11:19, 20 April 2014
Image compression mode	2
APEX shutter speed	6
APEX aperture	3
APEX brightness	0.83
APEX exposure bias	0
Maximum land aperture	3 APEX (f/2.83)
Metering mode	Pattern
Light source	Unknown
Flash	Flash fired, auto mode
Supported Flashpix version	1
Color space	sRGB
Focal plane X resolution	4,255
Focal plane Y resolution	4,255
Focal plane resolution unit	3
Sensing method	One-chip color area sensor
Custom image processing	Normal process
Exposure mode	Auto exposure
White balance	Auto white balance
Scene capture type	Standard
Sharpness	Normal
Subject distance range	Unknown

Structured data

File:20-TallyTakeupDrive.JPG

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