Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress .. . wn. Apattern chain determines what vibrator gears shall engage the cylinder gears,and, once the chain is fitted to the design to be woven, nothing remains forthe loom tender but to oversee the operation of the machine. Another form of dobbie, not less popular than the Knowles, developedinto a per
Triumphs and wonders of the 19th century, the true mirror of a phenomenal era, a volume of original, entertaining and instructive historic and descriptive writings, showing the many and marvellous achievements which distinguish an hundred years of material, intellectual, social and moral progress .. . wn. Apattern chain determines what vibrator gears shall engage the cylinder gears,and, once the chain is fitted to the design to be woven, nothing remains forthe loom tender but to oversee the operation of the machine. Another form of dobbie, not less popular than the Knowles, developedinto a perfect automatic device about fifty years ago in England. Here two THE CENTURYS TEXTILE PROGRESS 137 reciprocating knives are engaged, under the direction of a pattern chain, byone of two hooked jacks connected to the harness levers, and the shed isagain formed without human intervention. Other forms of dobbie structureshave been evolved during the last fifty years, but these two, with some modi-fications and additions of details, have come extensively into practical use,and represent the zenith of development at the present time. By their aidgreat variety is rendered possible in the design on the resulting fabric. Thefigured tablecloths, damasks, twills, satins, bordered and cross-bordered fab-. JACQUARD MACHINE. rics, are now possible at a cost of a thousandth part only of that incurredwhen produced by any of the old types of machines. The subject of shedding, i. e., of opening the warp-threads to afford apassage for the shuttle, is so inseparably connected with the name of Jac-quard, that attention is now carried to that wonderful invention evolved inthe first few years of the present century, and by the use of which it maytruly be said that anything can be woven as figure in a fabric that can bedesigned by the hand of man. It is as well adapted for the finest silks as forheavy carpets and figured velvets, and by an operation theoretically so sim-ple as to excite wonder that i
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Keywords: ., bookcentury1800, bookdecade1890, bookidtri, booksubjectinventions
