Engineering topics

Peek, C. R.

Publications and source records attributed to Peek, C. R..

2 records

NASA NTRS1984

Control-Chain Safety Tray and Friction Pull

Tray mounted above suspended ceiling keeps sprinkler-system control chain safely out of way of pedestrian traffic below. Tray reached easily by using fireman's hook short stepladder, or chair or by jumping up to grasp chain. Safety tray used for infrequently used control chains on vents and dampers.

Hajdik, G.↗

NASA NTRS1970

Motor brush wear measured with strain gages

Balanced bridge circuit, supplied with low-voltage direct current and connected to a readout device, measures remaining brush material, rate of brush wear, armature runout, and brush signature.

Farrell, W. T.↗