Abstract:
An electromagnetic motor operating from relative attractions and repulsions between inductor poles and winding coils of a commutator supplied armature, having 2p inductor poles on one face of an airgap, p being a number higher than one, 2n winding coils, n being a number higher than p though not being a multiple of p, and 2n commutator blades.
Abstract:
A NEW AND USEFUL PRECIOUS METAL SENSITIZING SOLUTION FOR RENDERING SURFACES RECEPTIVE TO THE DEPOSITION OF AN ADHERENT ELECTROLESS METAL IS PROVIDED WHICH COMPRISES A METAL COMPLEX CONSISTING ESSENTIALLY OF A PRECIOUS METAL SELECTED FROM THE GROUP CONSISTING OF THE PRECIOUS METALS OF THE FIFTH AND SIXTH PERIODS OF GROUP VIII AND I-B OF THE PERIODIC TABLE OF ELEMENTS, A GROUP IV METAL OF THE PERIODIC TABLE OF ELEMENTS WHICH IS CAPABLE OF TWO VALENCE STATES AND AN ANION CAPABLE OF FORMING A STABLE MOIETY WITH BOTH VALENCE STATES OF THE GROUP IV METAL, IN WHICH THE MOLAR RATIO OF PRECIOUS METAL TO GROUP IV METAL TO ANION FROM ABOUT 1:1:3 TO 1:3:19. FURTHERMORE, A PROCESS FOR RENDERING A SURFACE RECEPTIVE TO THE DEPOSITION OF AN ELECTROLESS METAL IS ALSO PROVIDED IN WHICH THE SENSITIZING SOLUTION HEREINABOVE DEFINED IS EMPLOYED.
Abstract:
A photometer system of the type having a photoelectric sensor receiving light through selectable different-sized apertures and selectable different density optical filters is provided with electronic circuitry including a numerical read-out means for automatically compensating the photo-sensor output in accordance with selected aperture and filter settings and for providing a direct numerical reading of the measured light. The circuitry automatically calculates the proper scale or multiplier of the direct reading, again in accordance with the selected apertures and filters, and provides a numerical display of such scale multiplier. Additionally, a gain control for changing the sensitivity of the photoelectric sensor is provided with an output indicative of the gain setting. This gain setting information is electronically fed to the computer along with the aperture and filter information for automatically computing and displaying the correct scale or multiplier factor from all of these independent variables.
Abstract:
A REFLECTOR ARRANGEMENT FOR GASEOUS DISCHARGE LAMPS IS DESCRIBED, HAVING REFLECTING SURFACES REPRESENTING RESONATE OPTICAL CAVITIES AT SELECTED WAVELENGTH FOR ATTENUATING EXCESSIVE PEAKS OF SPECTRAL COMPONENTS CHARACTERISTIC OF THE PRIMARY RADIATION SOURCE.
Abstract:
The tendency of illumination on a study desk task to produce veiling reflections is measured by a meter connected to two photocells arranged to measure both the total illumination and the portion thereof that will produce veiling reflections.