The London journal of arts and sciences (and repertory of patent inventions) [afterw.] Newton's London journal of arts and sciencesWilliam Newton 1842 |
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Seite 5
... iron have been used , punched out to the required form ; the spindles of iron wire ; the collars or washers of ordinary thin sheet - iron tubing ; and the bowls or rollers of pot or earthenware , glass , iron , or any other metal , or ...
... iron have been used , punched out to the required form ; the spindles of iron wire ; the collars or washers of ordinary thin sheet - iron tubing ; and the bowls or rollers of pot or earthenware , glass , iron , or any other metal , or ...
Seite 16
... iron ; one of them having a ledge at its lower edge . That side of the tinned copper plate which has been covered with the plaster , is to be laid flat upon the mould , and then two or three strips of steel , of the substance of the ...
... iron ; one of them having a ledge at its lower edge . That side of the tinned copper plate which has been covered with the plaster , is to be laid flat upon the mould , and then two or three strips of steel , of the substance of the ...
Seite 36
... iron or other metal , enclosing one , two , or more inner cases , with spaces or chambers between them , con- taining an absorbent material or composition , such as porous wood , dust of wood , dust of bones , or similar substances , in ...
... iron or other metal , enclosing one , two , or more inner cases , with spaces or chambers between them , con- taining an absorbent material or composition , such as porous wood , dust of wood , dust of bones , or similar substances , in ...
Seite 43
... iron bearers of the platform . These bearers were constructed of wrought - iron bars , over- lapping each other , and bolted together , with the ends of the sus- pending rods between them , for the purpose of giving stiffness to the ...
... iron bearers of the platform . These bearers were constructed of wrought - iron bars , over- lapping each other , and bolted together , with the ends of the sus- pending rods between them , for the purpose of giving stiffness to the ...
Seite 44
... iron bolts passing through the joint plates , and traversing hollow cast - iron distance pieces , placed horizontally between the chains . The effects of these alterations were so beneficial , that little or no injury occurred for ...
... iron bolts passing through the joint plates , and traversing hollow cast - iron distance pieces , placed horizontally between the chains . The effects of these alterations were so beneficial , that little or no injury occurred for ...
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acid ammonia apertures apparatus application arch attached axle bars boiler bottom bridge calotype carbonate carbonic acid carriage centre chains chamber chloride claim coating colour conj connected construction copper cylinder December-6 months described diameter diff disc drawing rollers effect employed engineer feet fibrous fixed fluid formed frame furnace gluten heat horizontal improvements in machinery inches inclined plane invention iron lead lever lower machine manner manufacture Mark Brunel material means ments metal method Middlesex mode months for inrolment motion mould Newton and Berry obtained Occul operation ordinary oxalic acid Paris passes patent pieces pinion pipe piston placed plaintiffs plate produced provements pulley purpose ratchet-wheel revolve rollers Rolls Chapel salt screw Sealed September-6 months shaft shewn at fig side slide solution specification steam stone substances sulphuric acid surface thick transverse treenails tube upper valve vertical vessel warps weight wheel zinc
Beliebte Passagen
Seite 172 - Thomas Richardson, of Newcastle, chemist, for a preparation of sulphate of lead applicable to some of the purposes for which carbonate of lead Is now applied.
Seite 196 - ... sensitive calotype paper. I prefer to conduct the process in the open air, under a serene sky ; but without sunshine, the image is generally obtained in half a minute or a minute. If sunshine is employed, a sheet of blue glass should be used as a screen to defend the eyes from too much glare, because this glass does not materially weaken the power of the chemical rays to affect the paper. The portrait thus obtained on the calotype paper is a negative one, and from this a positive copy may be...
Seite 69 - Huthven, of Rotherham, engineer, for a new mode of increasing the power of certain media, when acted upon by rotary fans or other similar apparatus.
Seite 391 - John Carr, of North Shields, earthenware manufacturer, and Aaron Ryles, of the same place, agent, for an improved mode of operating in certain processes for ornamenting glass. — Sealed 9th November — 6 months for inrolment.
Seite 193 - ... brush, taking care to wash it on the side which has been previously marked. This operation should be performed by candlelight. Let the paper rest half a minute, and then dip it into water. Then dry it lightly with blotting-paper, and finally dry it cautiously at a fire, holding it at a considerable distance therefrom. When dry, the paper is fit for use.
Seite 288 - ... immense pressure of four hundred atmospheres, without bursting ; but if the end of an iron rod was slightly pressed against the extremity of the tube, and the rod caused to vibrate longitudinally by rubbing it with a leather glove covered with resin, the tube was invariably shattered to pieces. Hence he concludes, that something more than the simple excess of pressure of steam in the boiler is necessary to cause an explosion, and that a slight vibratory motion alone, communicated suddenly, or...
Seite 369 - In the author's report on the state of the bridge, he noticed what he deemed defects in the construction of the roadway, but as there was no positive symptom of failure, it was allowed to remain. He conceived, that in the anxiety to obtain a light roadway, mathematicians and even practical engineers, had overlooked the fact, that when lightness induced flexibility, and consequently motion, the force of momentum was brought into action, and its amount defied calculation. On the llth of October, 1838,...
Seite 204 - Dantzic deal (Kyanized): the lengths vary from 46 feet to 20 feet, by 11 inches wide and 3 inches thick : they are so disposed, as that the first course of the rib is two whole deals in width, the next is one whole and two half deals, crossing the joints longitudinally as well as in the depth. Each rib consists of fourteen deals in thickness, bent over a centre to the required form, and secured together by oak treenails l\ inch diameter at intervals of 4 feet apart, each treenail traversing three...
Seite 344 - Having thus described the nature of my invention, and the manner of carrying the same into effect, I would have it understood that I do not...
Seite 458 - French centreings. As the arch rose from the springing, the crown of the centreing was loaded with stones, to prevent it rising and altering the shape of the arch. The cost of the entire aqueduct, which was about 21 miles long, with all the immediate and collateral works, and including the reservoir, was two millions and a half sterling. The communication was accompanied by three elaborate drawings of the general construction and details of the aqueduct, with the manner of carrying the stones. May...