Engineering topics

Rohrer, J. A.

Publications and source records attributed to Rohrer, J. A..

2 records

NASA NTRS1968

Compressible sleeve provides automatic centering for grinding or turning of cylinders

Elastomeric sleeve supported on a threaded mandrel automatically centers cylindrical castings for grinding or turning. By expanding the diameter of the sleeve with pressure against the ends, the casting becomes rigidly supported and the surfacing operation can be completed.

Rohrer, J. A.↗

NASA NTRS1968

Magnetically controlled torque wrench prevents overtorquing

Magnetically controlled torque wrench produces the required torque values accurately, and prevents overtorquing. The force between a magnet and a soft iron bar on the arms of the wrench constitutes a predetermined maximum torque that cannot be exceeded. So long as the magnetic flux remain constant, the torque remains the same.

Rohrer, J. A.↗