The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . t will reduce these nine operations to the minimum In modernmachines this has been effected to the extent of rendering necesslr^only three of them-(l) laying on or feeding thefheets^?applying the motive power, (3) taking off or delivering the sheets ? ZLT^ ^^^^ ^?\f^ ^nd deliver theinfelves auto:TOatically. Nearly all cylinder machines have a delivery apparatus«nd quite recentl
The Encyclopedia britannica; a dictionary of arts, sciences, and general literatureWith new maps, and original American articles by eminent writersWith American revisions and additions, bringing each volume up to date . t will reduce these nine operations to the minimum In modernmachines this has been effected to the extent of rendering necesslr^only three of them-(l) laying on or feeding thefheets^?applying the motive power, (3) taking off or delivering the sheets ? ZLT^ ^^^^ ^?\f^ ^nd deliver theinfelves auto:TOatically. Nearly all cylinder machines have a delivery apparatus«nd quite recently an appliance for the automatic feedUig to themof single sheets of paper has been invented ^„^ f,P^^ ^•* f^* P^^ ?« =« first that which is^tf Aw°? ^o™ ^y » ^g «^f^ Iieel It should be<hf JI^, ^^ t^e adoption of the rotatory principle was e^en Va! tothe acceleration of speed. This was reco^ized fey the proiector ofthe machine press, William Nicholson, and by FrederfckToeniwho first brought the invention into use and constructed a p7actcri-Wiii?i S?,**^^ ° ?* Invention is coatiioed in a serifs of artirV= hv m, *? FroK J/teanijw (PirinsSo) Schmidt, F. K<xnig e( dr. press. The essential arrangements of every machine are four, theirrespective objects being (1) to feed in the paper, (2) to ink tileforme, (3) to pnnt the sheet, and (4) to deliver or take it off. I he treadle platen press is the simplest of machine presses capableof being worked by a wheel. Mhcn other motive power iinotavailable it is dnven by a treadle, like that of a lathe. The t^?peforme IS usually secured by clamps on an almost vertical bed (fig 11)and the platen rocks backwards and forwards, being thus brousht m contact with the type — ^ on the bed. .Just before the impression is taken, the two surfaces are mo mentarily parallel The inking is effected by small composition rollers, ad justed in a roller carrier swinging on a pivot. The rollers receive ink from a fountain or duc
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Keywords: ., bookcentury1800, bookdecade1890, bookidencyclopedia, bookyear1892
