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Cole, P. T.

Publications and source records attributed to Cole, P. T..

12 records
All sourcesNASA NTRSDOE OSTI
NASA NTRS1969

Helical recorder

Tape recorder, using metallic tape, has a minimum of moving parts and no belts. It permits long-term bulk storage in extreme environments, and has less weight and bulk than present recording equipment.

Cole, P. T.↗
NASA NTRS1969

Helical tape forming device

Using a device that is not limited to a minimum thickness or width-to-thickness ratio, a very thin metal tape or ribbon is formed into a continuous flat wound helical coil. The device imparts the desired circular shape by squeeze rolling it with an unequal force across its width.

Bush, J. E.↗
NASA NTRS1967

Device measures static friction of magnetic tape

Device measures the coefficient of static friction of magnetic tape over a range of temperatures and relative humidities. It uses a strain gage to measure the force of friction between a reference surface and the tape drawn at a constant velocity of approximately 0.0001 inch per second relative to the reference surface.

Cole, P. T.↗