Abstract:
1. A METHOD OF MANUFACTURING SANDWICH ELEMENTS, COMPRISING THE STEPS OF SPREADING OUT A FIRST LAYER OF A MIXTURE OF SOLID PARTICLES AND LIQUID RESINOUS BINDER ON A BASE, APPLYING A SUPPORT MEMBER OF FLEXIBLE SHEET MATERIAL ON THE SURFACE OF SAID FIRST LAYER, SPREADING OUT A SECOND LAYER OF A MIXTURE OF SOLID PARTICLES AND LIQUID RESINOUS BINDER ON SAID FIRST LAYER AND SAID SUPPORT MEMBER, THE QUANTITY OF SOLID PARTICLES IN SAID MIXTURE FORMING SAID SECOND LAYER BEING SUCH THAT UPON SUBSEQUENTLY ALLOWING THE SOLID PARTICLES TO SETTLE AND TO FORM A SETTLE LAYER OF PARTICLES WITH BINDER THEREBETWEEN, AN OUTER LAYER OF BINDER IN EXCESS OF THAT WHICH SETTLES BETWEEN THE PARTICLES IS FORMED ATOP SAID SETTLED LAYER, INSERTING ONE SIDE PORTION OF A CORE BOARD ELEMENT OF OPEN-CELLED STRUCTURE INTO AND THROUGH SAID OUTER LAYER AND INTO ENGAGEMENT WITH SAID SUPPORT MEMBER, AND SAID SUPPORT MEMBER SEEPING SAID CORE BOARD ELENENT OUT OF CONTACT WITH SAID BASE, SO THAT SOME BINDER OF SAID OUTER LAYER ENTERS AND IS PICKED UP BY THE CELLS OF SAID CORE BOARD ELEMENT, AND FINALLY ALLOWING SAID BINDER TO HARDEN.
Abstract:
A method and device for coating plastic films in which the thickness of the coating is controlled by passing the coated film under steady pressure past a resilient scraping member in whose surface are embedded solid particles which space the film from the surface of the resilient member.
Abstract:
A METHOD OF ACHIEVING COMPLETE ENVELOPING COATING OF METAL, GLASS OR SYNTHETIC RESIN FIBERS BY A HEAT-SOFTENABLE MATERIAL, WHEREIN A PLURALITY OF SAID FILAMENTS ARE MOVED DOWNWARDLY PAST A MARGINAL EXPOSED EDGE OF A RESERVOIR POOL OF SOFTENED HEAT-SOFTENABLE MATERIAL AND TO PICK UP AN AMOUNT OF THE SOFTENED HEAT-SOFTENABLE MATERIAL AND THENCE CONTINUOUSLY MOVE DOWNWARDLY INTO CONTACT WITH A SURFACE OR MEMBER, CAUSING THE HEATSOFTENED MATERIAL CARRIED ON ONE SIDE OF THE INDIVIDUAL FILAMENT TO MOVE INTO SUBSTANTIALLY COMPLETE ENVELOPING RELATIONSHIP WITH THE INDIVIDUAL FILAMENT.
Abstract:
In a process for coating tapes or sheets with viscous solutions by the air-brush principle, a steam of air flows in the opposite direction to the movement of the web of material and acts substantially tangentially on the formation of the coating. This steam of air is produced by a vacuum between a bar which has an edge in the form of a ruler edge and the tape which is being coated, which moves past it at a close distance.
Abstract:
A system for coating of a donor material onto a laser radiation transparent substrate, the system including a donor material applicator, applying donor material to the laser radiation transparent substrate, a multi-pass precise donor material thickness determiner for providing a desired thickness of the donor material on the laser radiation transparent substrate and including a linearly displaceable blade support, a layer thickness uniformizing blade lockably pivotably mounted onto the linearly displaceable blade support about a pivot axis, the blade having a straight edge and a blade position maintainer operative for maintaining the straight edge at a desired separation distance from the laser radiation transparent substrate, the separation distance being uniform along the straight edge of the layer thickness uniformizing blade.