Abstract:
A light-transmitting article composed of a layer of transparent material having radiant heat-absorbing properties and arranged to be exposed to a principal source of heat radiation, and a protective layer of transparent material disposed adjacent that surface of the first-mentioned layer which is to face the principal source of heat radiation and capable of at least temporarily reflecting at least a portion of the radiant heat from such source which the first-mentioned layer is capable of absorbing so as to protect the article from damage due to excessive heat absorption.
Abstract:
METHOD AND APPARATUS FOR APPLYING A SUBSTANCE VAPORIZABLE BY ELECTRON BOMBARDMENT TO A SURFACE TO FORM A COATING THEREON. THE SUBSTANCE IS VAPORIZED IN A VACUUM BY BEING BOMBARDED WITH ELECTRONS. THE VAPOR, THUS FORMED, TRAVELS FROM WHERE IT IS FORMED AND IS DEFLECTED ONTO SUCH SURFACE TO COAT THE SAME.
Abstract:
A process for physically strengthening vitreous and vitrocrystalline bodies by applying to at least portions of the surface thereof coatings in which compressive stresses can be produced by appropriate chemical modifications thereof, and by carrying out such chemical modifications and subsequently cooling the coatings.