G - Physics – 01 – B
Patent
G - Physics
01
B
340/135.6
G01B 7/14 (2006.01) B23Q 17/22 (2006.01) B27B 5/34 (2006.01) H04R 15/00 (2006.01)
Patent
CA 1295710
CYLINDRICAL ELECTROMAGNETS, EACH HAVING A CENTERED PASSAGEWAY, FOR RELATIVE TRAVEL ALONG THE SAME WAVE GUIDE HOUSING OF A LINEAR POSITION-DISPLACEMENT TRANSDUCER, AND UTILIZED, WHEN INDIVIDUALLY ENERGIZED, TO GENERATE FLUX, WHICH IN TURN INDICATES THE POSITION OF THIS ONE OF SEVERAL RESPECTIVELY ATTACHED MOVABLE COMPONENTS OF A MACHINE ABSTRACT When observing or setting the changeable positions of respective movable components of a machine, such as movable saws of a multiple cut sawing machine, each linear position- displacement transducer used has the wave guide housing thereof, made of sufficient length to receive, instead of one permanent magnet, several overall cylindrical electromagnets serving as flux generators. Each one has a centered hole or passageway, to permit the movement thereof along the wave guide. Each overall cylindrical electromagnet has four electromagnets equally radially spaced in a radial plane with their commonly positioned north poles, forming an overall central north pole, surrounding the center hole, which is formed by a non ferrous tube, and with their radially spaced south poles being adjacent to an encircling soft iron band. This band serves as a 360 degree target for flux radiating from the overall central north pole, thereby strengthening and enhancing the radiation signal pattern bombarding the wave guide housing, when the overall cylindrical electromagnet is being energized to serve in determining the location of the machinery component to which it is attached. Also this encircling soft iron band serves as a heat sink to transfer and to dissipate the heat buildup occurring within the overall cylindrical electromagnet. To maintain these components in place with their electrical connections and circuits, the spaces between them are filled with epoxy, and plastic laminate top and bottom covers are used, and top and bottom O ring seals are used to seal out dust and moisture, and non-ferrous support posts are used together with fasteners to complete the assembly of each overall cylindrical electromagnet.
612206
Frayne & Company Robert
Williams Jack
LandOfFree
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