The Mechanic's Magazine, Museum, Register, Journal and Gazette, Band 37 |
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Seite 33
... and from the air - passages were left open , in the other their joint care and
exertions , and more espe they were closed ; in each case the experi . cially from
those of the workmen employed , ment was continued for 100 minutes . In
resulted ...
... and from the air - passages were left open , in the other their joint care and
exertions , and more espe they were closed ; in each case the experi . cially from
those of the workmen employed , ment was continued for 100 minutes . In
resulted ...
Seite 269
When this occurs during the re strongest , and from faults and cracks which
plenishment , and from continued rain , the are frequently met with . The constant
and level near the river maintains an increased increasing demand not only ...
When this occurs during the re strongest , and from faults and cracks which
plenishment , and from continued rain , the are frequently met with . The constant
and level near the river maintains an increased increasing demand not only ...
Seite 309
... subsequently woven into and used as clothThese three papers complete the
subject the coarse part of flax was in the time of the which the author commenced
in the year Romans bruised and driven between the 1841 , and continued during
...
... subsequently woven into and used as clothThese three papers complete the
subject the coarse part of flax was in the time of the which the author commenced
in the year Romans bruised and driven between the 1841 , and continued during
...
Seite 466
This continued support , which is neces That it would swell in winter , and sary to
steady their action , could not be shrink in summer . obtained without a change in
the position That it would be liable to rot and geof the screw shaft . They would ...
This continued support , which is neces That it would swell in winter , and sary to
steady their action , could not be shrink in summer . obtained without a change in
the position That it would be liable to rot and geof the screw shaft . They would ...
Seite 496
The pro to express the inert or passive force which priety of this recommendation
is so obvious , any body opposes to motion ; and this term that we make no doubt
it will be henceforth has continued in very general use down to universally ...
The pro to express the inert or passive force which priety of this recommendation
is so obvious , any body opposes to motion ; and this term that we make no doubt
it will be henceforth has continued in very general use down to universally ...
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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.