Browse Prior Art Database

Counter

IP.com Disclosure Number: IPCOM000088298D
Original Publication Date: 1977-May-01
Included in the Prior Art Database: 2005-Mar-04
Document File: 4 page(s) / 63K

Publishing Venue

IBM

Related People

Bergschneider, BD: AUTHOR [+3]

Abstract

This counter provides a binary output on the output terminals 11a-14a of a printed-circuit board a in accordance with the rotation of counter wheel A incremented by the actuation of electromagnet 20 and corresponding outputs on printed circuit boards b-f corresponding to succeeding counter wheels B-F incremented due to the rotation of counter wheel A thus providing a binary output of 10/6/.

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Counter

This counter provides a binary output on the output terminals 11a-14a of a printed-circuit board a in accordance with the rotation of counter wheel A incremented by the actuation of electromagnet 20 and corresponding outputs on printed circuit boards b-f corresponding to succeeding counter wheels B-F incremented due to the rotation of counter wheel A thus providing a binary output of 10/6/.

Counter wheels A-F are rotatably disposed on shaft 16 (Fig. 1). Counter wheel A is provided with ratchet teeth 22 (Fig. 2), and magnet pick arm 24 pivoted on shaft 26 surrounds teeth 22. Arm 24 is provided with inwardly extending teeth 24a and 24b adapted to coact with teeth 22. Return spring 28 is provided for arm 24 so that, as electromagnet 20 is actuated and deactuated, arm 24 is oscillated so as to increment wheel A. There are ten of the teeth 22 so that wheel A is incremented 36 degrees every time that electromagnet 20 is energized. Carry wheels 30a-30e are provided for the counter wheels A-E, respectively, and are rotatably disposed on shaft 26. Teeth 32 are provided on each of counter wheels A-E, and teeth 32 and the coacting teeth on carry wheels 30a-30e are conventional, so that when preceding counter wheel A is rotated through one revolution, the succeeding counter wheel B is incremented 36 degrees. Likewise, each of the succeeding counter wheels C-F is incremented 36 degrees for each revolution of the respective preceding counter wheel B-E.

Each of the counter wheels A-F is provided with a series of pins 41-44 (Fig.
3). Pins 41 are disposed in a circle about shaft 16, and the pins 42, 43, and 44 are disposed in circles of successively greater diameter about shaft 16. There are five of the pins 41, four of the pins 42, four of the pins 43, and two of the pins 44 spaced as shown in Fig. 3. The pins 41 are adapted to actuate a switch 41a (Fig. 4); and the pins 42, 43, and 44 actuate switches 42a, 43a, and 44a, respectively (Fig. 5). Each of these switches includes stationary terminal 50 on board a, and these fixed terminals 50 are connected to the terminals 11a-14a, respectively. Each of these switches, such as switch 41a shown in Fig. 4, includes a spring portion 52 fixed with respect to the board a having return bent parts 52a and 52b. The part 52a is that part of the spring portion 52 that makes contact with the stationary terminal 50 when one of the pins, such as one of the pins 41, contacts the part 52b, moving spring portion 52 against its inherent resilience to contact the spring part 52a with the stationary terminal 50.

The spring portions 52 of the switches 41a-44a are formed from a single piece of spring material, as shown in Fig. 3, and a select terminal 15a on board a is electrically connected to the spring portions 52. The connections on the other boards b-f are the same, and the corresponding output terminals 11a-11n are connected together, as shown in Fig. 5, as are the other corresponding output terminals of the...