Commercial push gage has been modified to enable rapid, accurate testing of paddle pins in distributors, bullet pins and patch boards. The purpose of the gage is to ensure that the pins will not break electrical contact when they are subjected to a minimum, preset pressure

Northern, B. J.

English

NASA Technical Reports Server

Gage 
.
Bu, 
Micro 
Pro
FIGURE 1
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FIGURE 2 
June 1969	 Brief 69-1073 
NASA TECH BRIEF	 & 
NASA Tech Briefs are issued to summarize specific innovations derived from the U.S. space program, 
to encourage their commercial application. Copies are available to the public at 15 cents each 
from the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151. 
Gage Provides Audible Signal

to Facilitate Checkout of Connector Pins 
A commercial push gage has been modified to 
enable rapid, accurate testing of paddle pins in dis-
tributors and bullet pins in distributors and distributor 
patch boards. The modified gage emits an audible sig-
nal when it is pushed against a pin at a preset pres-
sure. The purpose of the gage is to ensure that the 
pins will not break electrical contact when they are 
subjected to a minimum, preset pressure. With an 
unmodified gage, an inspector must visually observe 
that the gage probe tip is pi-operly positioned on each
pin while he attempts to read the gage scale for the 
preset pressure value. This operation is both tedious 
and prone to measurement error. 
As shown in Figure 1, the modification of the com-
mercial push gage consists of the addition of a micro-
switch and a buzzer circuit, with a probe tip configu-
ration designed to fit the pins under test. The probe 
tip is pushed against a pin, as shown in Figure 2, until 
the hu77cr sounds, indicatin g that the required preset 
ii tied stencil) 
This document was prepared under the sponsorship of the National 
Aeronautics and Space Administration. Neither the United States 
Government nor any person acting on behalf of the United States
Government assumes any liability resulting from the use of the 
information contained in this document, or warrants that such use 
will be free from privately owned rights. 
https://ntrs.nasa.gov/search.jsp?R=19690000173 2020-03-16T17:39:25+00:00Z
pressure has been reached. The mounting of the mi-
croswitch can be adjusted to permit presetting of any 
desired scale pressure within the range of the gage. 
The gage may also be used to provide an audible 
signal in response to a preset tension. Additional 
applications of the modified gage would include the 
checking of spring rates, cable tensions, and actuation 
pressures. 
N ote: 
No additional documentation is available. Inquiries 
may be directed to: 
Technology Utilization Officer 
Kennedy Spacecraft Center 
Kennedy Space Center, Florida 32899 
Reference: B69-10173
Patent status: 
Inquiries about obtaining rights for the commercial 
use of this invention may be made to NASA, Code 
GP, Washington, D.C. 20546.
Source: B. J. Northern
of The Boeing Company

under contract to
Kennedy Space Center

(KSC-10335)
. 
. 
Brief 69-16173	 Category 01


Gage provides audible signal to facilitate checkout of connector pins

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