The Mechanic's Magazine, Museum, Register, Journal and Gazette, Band 37 |
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Seite 232
Rolls ' Chapel , other metal which constitutes the exterior July 27 , 1842 . surface .
The process of manufacturing The nature of this invention is stated to hollow
metal knobs , according to the said consist in a mode of constructing the soles ...
Rolls ' Chapel , other metal which constitutes the exterior July 27 , 1842 . surface .
The process of manufacturing The nature of this invention is stated to hollow
metal knobs , according to the said consist in a mode of constructing the soles ...
Seite 233
To prepare the brass or other metal , ( such , for instance , as German silver , )
which is to form the exterior surface of the ball part of the knob , a square piece of
thin sheet brass or other metal , of a suitable size , is cut out with shears , and
then ...
To prepare the brass or other metal , ( such , for instance , as German silver , )
which is to form the exterior surface of the ball part of the knob , a square piece of
thin sheet brass or other metal , of a suitable size , is cut out with shears , and
then ...
Seite 267
... as it would do if the bottom was at Marseilles , wherever the wedge - pieces fiat
. were of gun - metal , the backs of the ... cast iron against gun - metal ; it
appeared ened and nothing of the kind was felt ; the therefore that the formation
of an ...
... as it would do if the bottom was at Marseilles , wherever the wedge - pieces fiat
. were of gun - metal , the backs of the ... cast iron against gun - metal ; it
appeared ened and nothing of the kind was felt ; the therefore that the formation
of an ...
Seite 498
That , under them , surfaces of wood on metal , metal on the same circumstances
of pressure and con wood , and metal ... of that pressure per square every case ,
except in that of metals upon inch ) ; so that , for any two given surfaces metals .
That , under them , surfaces of wood on metal , metal on the same circumstances
of pressure and con wood , and metal ... of that pressure per square every case ,
except in that of metals upon inch ) ; so that , for any two given surfaces metals .
Seite 581
These slips of proved that bringing metals to touch copper to extend froin the top
of the does not produce perfect ... would be metal , for such an important purpose
; almost as impermeable to the passage of but the greatest absurdity of all is ...
These slips of proved that bringing metals to touch copper to extend froin the top
of the does not produce perfect ... would be metal , for such an important purpose
; almost as impermeable to the passage of but the greatest absurdity of all is ...
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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.