NUMERICALLY CONTROLLED TURNING MACHINES

Brand Owner Address Description
BROWN & SHARPE Brown & Sharpe Manufacturing Company 200 Frenchtown Road North Kingstown RI 02852 numerically controlled turning machines, screw machines, surface grinding machines and parts therefor, machine shop tools and parts therefor; namely, cutter arbors, tool holders, surface plates, bushings, magnetic chucks, work driving dogs, collet holders, turret tools, collets, feeding fingers and adaptors and parts therefor, feed type bushings and liners, box tools, balance turning tools, slide tools for turrets, drilling and chamfering tools, adjustable holders, remer holders, thread roll holders, die holders and closers, die heads, chasers, tap holders, v tool holders, boring tools and boring holders, tool posts, knee tools, trepanning tools, centering and facing tools, pointing tools, knurl holders, swing tools, guides, recessing tools, back rests, turret tool adapters, hollow mills, burnishing mills, stock stops, spindle breaks, cam blades, cam holders, cam knurls and cutting tools;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. A method and apparatus for maintaining an ideal frequency ratio between numerically-controlled frequency sources provides a mechanism for maintaining coherence between multiple synchronization references where a known ideal rational relationship between the sources is known. Multiple numerically controlled oscillators (NCOs) generate the multiple synchronization references, which may be clock signals or numeric phase representations and the outputs of the NCOs are compared with a ratiometric frequency comparator that determines whether there is an error in the ratio between the NCO outputs. The frequency of one of the NCOs is then adjusted with a frequency correction factor provided by the ratiometric frequency comparator. The NCO inputs can represent ratios of the synchronization reference frequencies to a fixed reference clock and the NCOs clocked by the fixed reference clock.