The invention relates to a method for the production of a decorative surface finish on a material, in which a settable substance, such as a varnish, incorporating microspheres or other small hard bodies is coated upon a substrate and set thereon and the coated substrate is employed in the embossment of the said material with the said finish. The coated substrate may be employed directly for the embossment or used for moulding a die employed for the embossment.

Surfaces are analyzed to determine materials adsorbed thereon by directing a beam of atoms or molecules excited to metastable levels onto the surface. Ions of the adsorbed material which are produced are analyzed, such as by a mass spectrometer.

A method of providing a glass surface with a protective coating, which comprises the steps of coating the surface with a solution containing magnesium, ammonium, chromate and phosphate ions, and curing said coating. A composite article comprised of a layer of glass and a substantially water insoluble, transparent, cured coating adhered thereto. The coating being comprised of magnesium cations and anionic polymeric chains of chromium, oxygen and phosphorus atoms.

A bearing material which comprises a base, which base has a phenolic or other thermoset plastic surface, and a bearing surface, adherently deposited on said phenolic surface, of from 0.02 to 0.62 mils of at least one metal selected from nickel, copper and chromium. The metal bearing surface may be a single layer of an electrolessly applied metal, such as an electroless nickel layer, or multiple layers of electrolessly and electrolytically applied metal, having a total thickness of 0.02 to 0.62 m...

Device for cleaning a surface wherein water is directed from nozzles which are in continuous motion substantially transverse to the general direction of advance along said surface.

The present invention relates to a connecting element of the type for interconnecting electrical circuits on two electronic component-carrying devices such as printed circuit boards and substrate devices. More particularly the invention discloses a connecting element having a symmetrical, sinuous shape so as to provide a spring section for exerting a determined contact force. Further, the connecting element has, as an integral part thereof, a shorting beam to provide a shorter electrical path an...

A surface potentiometer having a measuring electrode disposed at a predetermined distance from a surface to be measured and in which the electric field between the measuring electrode and the surface to be measured is intermittently shielded by a rotatable chopper to thereby induce an AC signal in the measuring electrode and the AC signal is clamped at a timing corresponding to the position of the chopper relative to the electrode to thereby accurately measure the potential of the surface to be ...

Surface ducting comprising a body portion and a removeable lid, the body portion having a base, first longitudinal channels defined by longitudinally extending ribs which are upstanding from the base, and a pair of second longitudinal channels which are arranged one on each side of the first channels and which are each defined by a side wall of the body portion which is upstanding from the base and one of the ribs, the first and second longitudinal channels being of the same height, the first ch...

A device for applying pressure to a surface. A base member has a contacting means mounted on its lower face and a pressure conveying means mounted on its upper face. The user applies pressure to the device through handles. The pressure is conveyed through the handles, carrier members, and axles to rollers. The device is lightweight and portable such that it may be used on walls, ceilings, and in confined spaces as well as for conventional floor installation.

A surface condenser particularly suitable for being used in a zero gravity environment and which is easy to be manufactured. It comprises at least one pair of coextensive elements spaced apart from each other to form a relatively narrow gap therebetween, said gap having a width which is tapered from the outer ends of said elements towards a defined portion thereof. Peripheral distributor means extends along the outer ends of the elements and has its interior space in communication with the gap a...