London Journal of Arts and Sceinces: And Repertory of Patent Inventions, Volumen4William Newton, Charles Frederick Partington W. Newton, 1822 |
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Página 2
... intended to burn charcoal ; but when sea - coal , coke , or wood is employed , it may be found necessary to suffer the smoke to dis- charge itself through a pipe , seen in fig . 2. passing over the oven . If this apparatus be used in a ...
... intended to burn charcoal ; but when sea - coal , coke , or wood is employed , it may be found necessary to suffer the smoke to dis- charge itself through a pipe , seen in fig . 2. passing over the oven . If this apparatus be used in a ...
Página 13
... intended to be introduced between the perpendicular ribs of the jaws at e . At f , is a thumb - screw passing through the ribs for the pur- pose of tightening the jaws , and holding the leather fast between the indexes while being sewn ...
... intended to be introduced between the perpendicular ribs of the jaws at e . At f , is a thumb - screw passing through the ribs for the pur- pose of tightening the jaws , and holding the leather fast between the indexes while being sewn ...
Página 19
... intended to take into the teeth of a rack fixed to the ground , and the carriage to be advanced by those means . In order to enable the carriage to turn angles or perform curves , it is intended that the hollow roller , or drum , should ...
... intended to take into the teeth of a rack fixed to the ground , and the carriage to be advanced by those means . In order to enable the carriage to turn angles or perform curves , it is intended that the hollow roller , or drum , should ...
Página 58
... intended to strike alternately upon the arms , ƒ and g , of two brass pulleys , h , h , so as to turn them partly round . These pulleys , h , h , are connected by bands to the web rollers i , i , to which the endless feeding tapes , k ...
... intended to strike alternately upon the arms , ƒ and g , of two brass pulleys , h , h , so as to turn them partly round . These pulleys , h , h , are connected by bands to the web rollers i , i , to which the endless feeding tapes , k ...
Página 59
... intended to support the sheets of paper in their progress between the feeders and the drums . m , is an angular guide bar of metal or wood , placed so as to guide the paper down between the drums when the upper or short sets of endless ...
... intended to support the sheets of paper in their progress between the feeders and the drums . m , is an angular guide bar of metal or wood , placed so as to guide the paper down between the drums when the upper or short sets of endless ...
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Términos y frases comunes
1st Sat 2d Sat acid action advantage alpaco anchor animal annatto apparatus appears applied axle balance spring bars boat boiler bottom carbonic acid carriage chevaux-de-frise colour conj consists construction containing contrivance copper Coppermine River cylinder described Diff drawing rollers eclipsed effect employed engine engraving essential oil experiments feet fixed furnaces heat holes Holyhead improved inches Institution invention iron joints Journal of Arts June labour lamp leeches length lever London machine magnesia manual labour manufacture means ment metal method Middlesex mode months for inrolment muriate observations obtained operation passing patent Perigee piece pipe placed plate present produced proposed purpose quantity reservoir rollers ropes round screw shank shewn side Society specific gravity specification spring steam substance surface tallow temperature timber tion tube upper verdigris vessel vicuna volume wheel wick wrought iron
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Página 263 - ... pounds, two hundred and thirty-two feet, in a minute ; and of working, on an average, eight hours per day. This is equivalent to the work of thirty-four men; twenty-five square feet of canvas performing the average work of a day-labourer.
Página 273 - N. down to hit. 69 deg. comprising an extent (reckoning the indentations and sinuosities observed) of about 800 miles ! The coast visited by Captain Scoresby is a continuation towards the North of that on which were planted the ancient colonies from Iceland, the fate of which is still veiled in such deep obscurity.
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