an optical comparator often called just a comparator in context or profile projector is a device that applies the principles of optics to the inspection of manufactured parts. in a comparator, the magnified silhouette of a part is projected upon the screen, and the dimensions and geometry of the part are measured against prescribed limits.it is a useful item in a small parts machine shop or .
the thermomix was derived from a mixer series from vorwerk originally called 'vkm5', in 1961. it had seven functions: stirring, kneading, chopping, grating, mixing, milling and juicing.the justification for the development of the heating element comes from the managing director of vorwerk france, who around 1970 came up with the idea of designing a machine that could simultaneously blend and .
coldharbour mill, near the village of uffculme in devon, england, is one of the oldest woollen textile mills in the world, having been in continuous production since 1797. the mill was one of a number owned by fox brothers, and is designated by english heritage as a grade ii* listed building.
parkinson and crossley, english patent, 1828 came up with their own hot air engine. in this engine the air-chamber is partly exposed, by submergence in cold water, to external cold, and its upper portion is heated by steam. an internal vessel moves up and down in this chamber, and in so doing displaces the air, alternately exposing it to the .
at the same time outokumpu sold all boliden shares. in june 2006, outokumpu technology was spun off as a separate, renamed outotec in april 2007. citation needed on 31 march 2008, the cold rolling mill in sheffield was closed in a company-wide 10% fixed cost reduction plan.
a four-slide, also known as a multislide, multi-slide, or four-way, is a metalworking machine tool used in the high-volume manufacture of small stamped components from bar or wire stock. the press is most simply described as a horizontal stamping press that uses cams to control tools. the machine is used for progressive or transfer stamping operations.
the toshiba-kongsberg scandal was a cold war controversy that arose when some member nations of the coordinating committee for multilateral export controls illegally exported to the soviet union machine tools that could be used in combination with the kongsberg numerical control nc devices made in norway, in violation of the cocom agreement.