The Mechanic's Magazine, Museum, Register, Journal and Gazette, Band 37 |
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Seite 118
But when it is proposed that we throughout its whole length ; or as , instead shall
go in vehicles which , in addition to of thus wasting light unnecessarily , each car
being as large and commodious as the cabins riage might carry lights before ...
But when it is proposed that we throughout its whole length ; or as , instead shall
go in vehicles which , in addition to of thus wasting light unnecessarily , each car
being as large and commodious as the cabins riage might carry lights before ...
Seite 380
The kelsons , along their whole length , by other space between the outer and the
inner per . beams , and by bolts — the whole constituting forated tube is covered ,
so that the draught truss - frames , which sustain and divide the must pass ...
The kelsons , along their whole length , by other space between the outer and the
inner per . beams , and by bolts — the whole constituting forated tube is covered ,
so that the draught truss - frames , which sustain and divide the must pass ...
Seite 432
The whole of these calculations were grounded on the assumption that each
chain of the Public Railways in Belgium , have of mountains was to be taken as a
bilateral horilately directed much of their attention to zontal prism , and that each
...
The whole of these calculations were grounded on the assumption that each
chain of the Public Railways in Belgium , have of mountains was to be taken as a
bilateral horilately directed much of their attention to zontal prism , and that each
...
Seite 493
Suppose the problem reversed , and that 1. When a benefit for the whole life is it
is required to find what amount of benefit to be entered upon immediately , the is
equivalent to a present value of £ 1 ? quantities in the numerator have for their ...
Suppose the problem reversed , and that 1. When a benefit for the whole life is it
is required to find what amount of benefit to be entered upon immediately , the is
equivalent to a present value of £ 1 ? quantities in the numerator have for their ...
Seite 544
Judging from its appearance , there is nothing complicated or diflicult in its
construction . The whole is of iron . The cylinder sustains a grating , attached to it
by hoops , and firmly braced by stays passing round the cylinder , and very
securely ...
Judging from its appearance , there is nothing complicated or diflicult in its
construction . The whole is of iron . The cylinder sustains a grating , attached to it
by hoops , and firmly braced by stays passing round the cylinder , and very
securely ...
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action advantage angle apparatus appears applied axle boiler bottom called carried cause centre coal communication considerable considered consists construction continued correspondent cylinder described diameter direction distance ditto effect employed engine equal experiments fact feet force four furnace give given greater heat hour improvements inches increased invention iron length less light London machine manner manufacture material matter means mechanical ment metal method miles mode months motion moving nearly object observed obtained operation pass patent piece pipe piston plate position practical present pressure principle produced propeller proved quantity railway readers resistance respect screw ship side space spring square steam sufficient supply suppose surface tion tube valve vessel weight wheels whole wire wood
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Seite 371 - The Committee on Science and the Arts constituted by the Franklin Institute of the State of Pennsylvania, for the promotion of the Mechanic Arts, to whom was referred for examination a Solar Compass, invented by WM.
Seite 590 - ... any new and original design for a bust, statue, or bas relief or composition in alto or basso relievo, or any new and original impression or ornament, or to be placed on any article of manufacture, the same being formed in marble or other material, or any new and useful pattern...
Seite 376 - An account of the waste or increase of the Land on any part of the coast of Great Britain, the nature of the Soil, the direction of the Tides, Currents, Rivers, Estuaries, &c., with the means adopted for retarding or preventing the waste of the land.
Seite 498 - When no unguent is interposed, the friction of any two surfaces (whether of quiescence or of motion) is directly proportional to the force with which they are pressed perpendicularly together ; so that for any two given surfaces of contact there is a constant ratio of the friction to the perpendicular pressure of the one surface upon the other.
Seite 468 - ... 2. On repeating this simple experiment, I find that it is necessary for the production of a good effect to use dissimilar metals ; for instance, a piece of gold or platina on a plate of copper or of silver will make a very decided image, whereas copper or silver on their respective plates...
Seite 343 - We are of opinion that if the result produced by such a combination is either a new article, or a better article, or a cheaper article to the public, than that produced before by the old method, that such combination is an invention or manufacture intended by the statute, and may well become the subject of a patent.
Seite 470 - I feel convinced that we have to do with some thermic influence, and that it will eventually be found that some purely calorific excitement produces a molecular change, or that a thermo-electric action is induced which effects some change in the polarities of the ultimate atoms of the solid.
Seite 349 - ... to the health. But as it approaches the metropolis, it becomes loaded with a quantity of filth, which renders it disgusting to the senses, and improper to be employed in the preparation of food.
Seite 590 - ... manufacture, not known or used by others before his, her, or their invention or production thereof, and prior to the time of his, her, or their application for a patent therefor, and who shall desire to obtain an exclusive property or right therein to make, use, (and sell) and vend the same, or copies of the same, to others, by them to be made, used, and sold, may make application in writing, to the Commissioner of Patents, expressing such desire : and the Commissioner, on due proceedings had,...
Seite 470 - Magazine for October 1840, I mentioned some instances in which I had copied printed paper and engravings on iodized paper by mere contact and exposure to the influence of calorific rays, or to artificial heat. I then, speculating on the probability of our being enabled by some such process as the one I then named, to copy pictures and the like, proposed the name of THERMOGRAPHY, to distinguish it from Photography.