An improved overlay proofing film comprising a substantially transparent polyester base film which is first coated on one or both sides with a non-light sensitive composition having a refractive index of about 1.6, said non-light sensitive composition consisting essentially of a copolymer of polymethyl methacrylate and methacrylic acid, said coated polyester base film having a second coating on either side thereon, said second coating comprising a light sensitive mixture of (a) a resinous binder...

Process for preparing a positive overlay using an imagewise exposed peel apart photosensitive element comprising a strippable cover sheet, photoadherent layer containing a colorant, a tacky, nonphotosensitive contiguous layer, and a support wherein after peeling apart the element bearing the contiguous layer and complementary colored unexposed areas is adhered to a transparent receptor, and the transparent and colored unexposed image adhered thereto are removed. By repeating the procedure with p...

Disclosed are coatings which are improved by a special peening process. Uniform sized spherical steel shot, in the range 1-2.5 mm is impacted at uniform low velocities onto a coated workpiece. Peening intensities are in the range 0.30-0.60 mm N. MCrAlY high temperature coatings are particularly improved, with densities of the order of 99 percent. Physical vapor desposited coatings have surface finishes of the order of 30.times.10.sup.-6 inch AA (Arithmetic Average) and plasma sprayed coatings ha...

A ledge bed overlay for use with conventional patient care beds whereby a ledge can be formed to facilitate placing a bedpan or a bathtub beneath a patient without having to physically lift the patient.

A method for the deposition of filler materials in filling and overlay applications is disclosed in which there is provided a continuous forced flow of filler material from an external reservoir, which is released through an outlet positionable over a depression in a surface which has been prepared to be filled and overlaid with filler to fill the place of application and overlay the surrounding area. An apparatus for the deposition of such filler is also disclosed.

The present invention is directed to an improved test wafer for testing the overlay alignment of a second level pattern over a first level pattern for testing lithographic equipment used in making microcircuits, which includes four conductors with circuitry provided for each conductor measuring the conductance thereof, the conductors being constructed and arranged so that the conductance of the first conductor relative to the second conductor, and the conductance of the third conductor relative ...

The present device is an overlay member, such as a glass piece, which permits a viewer to see, for instance a work of art, without being distracted by reflected images emanating from the overlay or glass surface. The present overlay has a base member having rough surfaces on both sides and has a coating, or plurality of layers of anti-reflection material such as silicon dioxide and titanium dioxide, which is arranged to reduce image reflection, from the surface, by light interference. The rough ...

Coded data imprinted in close spaced relation on data sheets retained within a loose leaf binder is selectively marked through cutout openings in a transparent overlay mask. The mask is positioned in proper alignment over each of the data sheets by means of aligning slots through which at least two of the binder rings project.

The invention relates to an overlay for selectively blocking out or covering unwanted information or data on a page having a predetermined layout, such as a television program listing or guide, a class schedule, or a public transportation schedule. The overlay comprises a substantially transparent sheet alignable on the page with indicia and data blocking areas corresponding to indicia and bodies of data of the predetermined layout. The overlay may be partitioned by lines to predefine the data b...

A cellular private branch exchange for facilitating cellular communication for a first plurality of mobile station units, which includes a first base station subsystem for communicating with a first and a second mobile station unit of the first plurality of mobile station units on respectively a first and a second cellular bearer data channel. The cellular private branch exchange further includes a cellular private branch exchange unit coupled to the first base station subsystem. In turn, the ce...