Results 131 to 140 of about 46,918 (252)

Hydraulic drive mechanism Patent [PDF]

open access: yes, 1967
Hydraulic drive mechanism for leveling isolation ...
Tsutsumi, K.
core   +1 more source

Space vehicle with artificial gravity and earth-like environment [PDF]

open access: yes, 1973
A space vehicle adapted to provide an artificial gravity and earthlike atmospheric environment for occupants is disclosed. The vehicle comprises a cylindrically shaped, hollow pressure-tight body, one end of which is tapered from the largest diameter of ...
Gray, V. H.
core   +1 more source

Motion picture camera for optical pyrometry Patent [PDF]

open access: yes, 1962
Filter arrangement for controlling light intensity in motion picture camera used in optical ...
Strass, H. K.
core   +1 more source

Estimation of stiffening effect of shaft and housing material outside projected area of a rolling element bearing [PDF]

open access: yes
In the analysis of distortions occurring in rolling-element bearings, it is common to neglect the stiffening effect of shafting outside the bearing region.
Taylor, C. M.
core   +1 more source

Tuning arrangement for an electron discharge device or the like Patent [PDF]

open access: yes, 1970
Tuning arrangement for frequency control of magnetron-type electron discharge ...
Martucci, V. J.
core   +1 more source

Mechanical simulator of low gravity conditions Patent [PDF]

open access: yes, 1970
Low and zero gravity simulator for astronaut ...
Dane, D. H.
core   +1 more source

NASA five-ball fatigue tester: Over 20 years of research [PDF]

open access: yes
Studies were conducted to determine the effect on rolling-element fatigue life of contact angle, material hardness, chemistry, heat treatment and processing, lubricant type and chemistry, elastohydrodynamic film thickness, deformation and wear, vacuum ...
Anderson, W. J.   +2 more
core   +1 more source

Rotary compression process for producing toothed hollow shafts

open access: yesMetalurgija, 2014
The paper presents the results of numerical analyses of the rotary compression process for hollow stepped shafts with herringbone teeth. The numerical simulations were performed by Finite Element Method (FEM), using commercial software package DEFORM-3D.
openaire   +3 more sources

Sizing a solar electric thrust subsystem [PDF]

open access: yes
Method for determining approximate mass and dimensions of solar electric thrust ...
Masek, T. D.
core   +1 more source

Performance of 75-millimeter-bore bearings using electron-beam-welded hollow balls with a diameter ratio of 1.26 [PDF]

open access: yes
An experimental investigation was performed to determine the rolling element fatigue life of electron beam-welded hollow balls with a diameter ratio (o.d./i.d.) of 1.26 and to determine the operating characteristics of bearings using these hollow balls ...
Coe, H. H., Parker, R. J., Scibbe, H. W.
core   +1 more source

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