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  • 1
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    Unknown
    Bidirectional torque filter eliminates backlash (1965)
    In:  CASI
    Details
    Publication Date: 2019-05-23
    Description: Two elastic springs connecting a hub and two spur gears absorb bidirectional step torque differentials and provide antibacklash characteristics between input and output shafts. This device is used in precise control systems.
    Keywords: MECHANICS
    Type: GSC-335
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    Combustion chamber inlet manifold separates vapor from liquid (1966)
    In:  CASI
    Details
    Publication Date: 2019-05-29
    Description: Circular manifold with tangential orifices at the inner circumference provides for the vapor constituent of a vaporized cryogenic propellant to enter a rocket combustion chamber before the liquid constituent. The vapor is separated from the liquid by centrifugal action and precedes it into the chamber through carefully positioned orifices.
    Keywords: MECHANICS
    Type: MFS-531
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 3
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    Stationary device produces homogeneous mixture of fluids (1966)
    In:  CASI
    Details
    Publication Date: 2019-05-29
    Description: Stationary device produces a homogeneous mixture of two or more one-phase or two-phase fluids. The device contains two concentric flow guides with helical passageways through which the fluids are forced into turbulent flow by the system pressure differential.
    Keywords: MECHANICS
    Type: MFS-525
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 4
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    Ultrasonics permits brazing complex stainless steel assembly without flux (1967)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Ultrasonic vibration of an assembly of stainless steel instrumentation tubes ensures brazing without flux. Vibration with an ultrasonic transducer permits the brazing material to flow down each tube in contact with a seal plug installed in a pressure vessel wall.
    Keywords: MECHANICS
    Type: NU-0115
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 5
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    A generalized vortex lattice method (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Several variations of vortex lattice method that are currently available have proved practical and versatile theoretical tools for aerodynamic analysis and design of planar and nonplanar configurations. Success of method is due in great part to relative simplicity of numerical technique involved and to accuracy of results obtained; however, most of available procedures are for subsonic flow applications. VORLAX program was developed to incorporate direct extension of vortex lattice method into supersonic flow regime, thus providing analyst with full flow range capability.
    Keywords: MECHANICS
    Type: LAR-12636 , NASA Tech Briefs (ISSN 0145-319X); 5; 2; P. 209
    Format: text
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    NASA TECHNICAL REPORTS
  • 6
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    Shear-Panel Test Fixture Eliminates Corner Stresses (1984)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: New design eliminates corner stresses while maintaining uniform stress across panel. Shear panel test fixture includes eight frames and eight corner pins. Fixture assembled in two halves with shear panel sandwiched in between. Results generated from this fixture will result in good data base for design of efficient aircraft structures and other applications.
    Keywords: MECHANICS
    Type: LAR-12930 , NASA Tech Briefs (ISSN 0145-319X); 8; 1; P. 82
    Format: text
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    NASA TECHNICAL REPORTS
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