Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1979-06-21
1980-11-18
Smith, Gary L.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51273, B24B 5506
Patent
active
042337828
ABSTRACT:
A work cabinet it disclosed and intended to be located in the offices of podiatrists, dentists, prosthetic technicians, orthetic technicians, denturologists, jewellers and the like. The work cabinet provides a counter level table top below which are enclosed several air filtering and circulating units and on top of which are disposed side by side three housings, each provided with at least one front opening for having access to the working space within the respective housing. In a first housing are located power-driven tools for the rough machining and grinding operations to be effected on a work piece, such as a foot prothesis, foot-correcting inner sole, dentures, and the like small work pieces generally made of plastics, such as acrylics, porcelaine, plaster and the like. The second housing contains also power-driven tools, but mainly used for intermediate finishing operation, such as buffing and polishing of the same work pieces. The third housing is for the final polishing operation. Especially in the two first-named housings, a great quantity of particles and wet and dry dust are produced by the working operations. It is essential that said dust and particles be collected and filtered out without escaping into the outside atmosphere, since the cabinet is to be located in the user's office close to a patient. It is also essential that the working tools and the work piece held within the housings be illuminated for ease of working and due to the precision work involved, and that the light sources be kept clean at all time. Therefore, each housing is provided with air suction and filtering means and also with a jet of clean air directed onto the light source to prevent deposits of dust and particles thereon.
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