Browse Prior Art Database

Force and Displacement Gage

IP.com Disclosure Number: IPCOM000096084D
Original Publication Date: 1964-Dec-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Mowry, DC: AUTHOR [+3]

Abstract

This tool not only tests but also adjusts mounting 10 for the capstan used in feeding magnetic tape through a reader. It is desirable that the capstan pick up the tape with as little loss of time as possible. Solenoid 11, acting on a plunger, not shown, attached to arm 12, rocks bracket 14 for the capstan counterclockwise against the action of the spring hinge on pivot 15 to engage the drive for the tape. It is the operation of pivot 15 and "the travel of arm 12 that is to be adjusted. Fixture 20 is provided in which the mounting is positioned by two pins, not shown, that engage holes 16 and 17 and the mounting is held by swing-away clamp 21.

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Force and Displacement Gage

This tool not only tests but also adjusts mounting 10 for the capstan used in feeding magnetic tape through a reader. It is desirable that the capstan pick up the tape with as little loss of time as possible. Solenoid 11, acting on a plunger, not shown, attached to arm 12, rocks bracket 14 for the capstan counterclockwise against the action of the spring hinge on pivot 15 to engage the drive for the tape. It is the operation of pivot 15 and "the travel of arm 12 that is to be adjusted. Fixture 20 is provided in which the mounting is positioned by two pins, not shown, that engage holes 16 and 17 and the mounting is held by swing- away clamp 21.

Since the travel of arm 12 is a predetermined dimension, shim 22 of that thickness is placed between head 23 of solenoid 11 and arm 12. Threaded hole 24 is provided in head 23 by which the solenoid plunger, not shown, is secured to it. A pair of transducers 18 and 19 is provided to read and measure the action of the different members under test. These transducers are provided with actuators 25 and 26.

Actuator 25 comprises rod 27, one portion 28 of which is magnetized, having button 30 formed on one end. Button 30 is provided with threaded end 29 that is screwed into hole 24 after being threaded through bar 32 having coil 33 surrounding rod 27. Bead cable 34 connects transducers 25 and 26. Actuator 26 is identical to 25 and is located within coil 35, housed in slidable member 36. Spring arm 37, secured to the free end of actuator 26, places the system under tension. Clamp 40, secured to the fixture, is now swung into place about pivot 41 and tightened. Such operation secures ar...