Abstract: A process for differential diagnosis of various rheumatological and arthritic diseases, all of which may yield similar antinuclear antibody test results. The process comprises a continuous sequence of tests on a single serum specimen to minimize and eliminate variations, thus providing accurate results. The process involves drawing a serum from a patient and first performing an antinuclear antibody test which is evaluated. If the evaluation is positive, then the particular type of positive indication is interpreted. If the interpretation reveals peripheral or speckled immunofluorescence, then a diagnosis of active Systemic Lupus Erythematosus (SLE), or mixed connective tissue disease (MCTD) are suggested, and automatically additional confirming tests will be performed as part of the process. These tests are the anti-DNA (Deoxyribonucleic Acid), the anti-ENA (extractable nuclear antigen).

Abstract: A contaminated article is subjected to vapor degreasing operations wherein the vapor degreasing solvent comprises a blend consisting essentially of perchlorethylene and trichlorethylene, wherein in the preferred embodiment, the perchlorethylene comprises about 81 volume percent of the degreasing solvent, while the trichlorethylene comprises the remaining 19 volume percent of the solvent blend.The solvent blend extends the normal life of perchlorethylene degreasing solvents alone, or in combination with stabilizers and the like, or, alternatively, allows the utilization of trichlorethylene at temperatures higher than those that would normally cause pyrolysis. The degreasing solvent blend not only extends the operational life of perchlorethylene-based vapor degreasing solvents, but also reduces the cost of conducting vapor degreasing operations.

Abstract: A modular multiple-fluid component selection and delivery system comprised of a main block having a centrally located main passageway intersected by a plurality of secondary passageways. Plug valves are inserted in bores in the block which intersect each respective main and secondary passageway. A valve at the entrance to the main passageway permits flushing the system with a solvent for cleaning the main passageway and spray gun. A check valve at the entrance to the main passageway prevents a backup of fluid components into the solvent supply system. The secondary passageway exits at the sides of the block to which are attached hose connecting fittings. The main passageway terminates in the opposite end of the block in threads for attachment to a main hose to a spray gun for spraying a fluid component such as paint.

Abstract: A method of painting a photographic image on any surface, including a vertical surface or uneven surface. The method described is comprised of transferring the photographic image to a screen having a particular minimum mesh and then securing the screen to the surface onto which the photographic image is to be painted. The screen being flexible is secured to the surface in intimate contact and following substantially the contour of the surface to be painted. Paint is then sprayed through the photographic image on the screen in a series of applications of very thin layers with the paint allowed to dry between each application. The paint is mixed to such a consistency that it will rapidly dry almost as it is applied. When the painting is finally completed, the screen is removed by carefully peeling it from the surface, leaving the photographic image painted on the surface.

Abstract: A roving brake having a pair of flat-bladed leaf springs extending toward one another into engagement at their ends in a mutually opposed relationship to pinch roving or cordage passing between the leaf springs. The leaf springs are attached to a mounting bracket having a flange for securing the ends of the leaf springs in a separated relationship. The flange includes a guide means for guiding the roving between the abutting or pinching ends of the leaf springs. The bracket also has a parallel flange on the opposite end with an aperture for guiding the roving to prevent any binding. Posts attached to the bracket and abutting opposite sides of the leaf springs maintain the end of the leaf springs in a mutually biased relationship. The roving brake bracket may be mounted at any convenient location where delivery of roving to a cutter and spray gun is desired.