Patents for Inventions: Abridgments of Specifications Relating to Printing, Including Therein the Production of Copies on All Kinds of Materials, Том 2G. E. Eyre and W. Spottiswoode, printers to the Queen's most excellent Majesty, 1870 - 642 стор. |
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66 Printed 66 This invention above-mentioned acid action alternate currents apparatus applied armature arrangement attached axis carriage centre clockwork coating coils communication compass compound conducting wires conductors connected construction copper core covering cylinder described disc Drawings earth electric circuit electric conductors electric current electric telegraph cables electro-magnet electrotype employed engine fixed galvanic battery galvanometer glass grooved gutta percha heat helical hemp Improvements in electric India-rubber indicator insulated insulated wire invention consists invention relates inventor lever line wire liquid local battery manufacture means Mechanics ments metal motion naptha needle obtained ordinary paper passes permanent magnet piece placed plate poles position produced Provisional Protection purposes railway signals receiving instrument relay revolving ring rollers rope rotation screw shaft shellac ship signal soft iron solution spring station steel strip submarine substance suitable sulphur surface telegraph wires transmitting tube type wheel vessel voltaic zinc
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Сторінка iv - It is intended, however, to publish these Abridgments in classes as soon as the Abridgments of all the Specifications from the earliest period to the end of 1866 have appeared in a classified form. Until that takes place the...
Сторінка 48 - ... in one direction, one of the pens is depressed, and when it passes in the contrary direction the other pen is depressed ; when the currents cease, light springs restore the pens to their usual elevated positions.
Сторінка 807 - ... soon wear the plate. This coating must be kept very thin, lest the fineness of the engraving and the polish of the white parts should be destroyed. In this state the plate can be delivered to the printer. After a certain number of impressions have been obtained, it will...
Сторінка 622 - iron and steel with silver, gold, platinum, or palladium, and in " ornamenting articles with such metals," among the articles being steel surgical instruments.