Journal of the Franklin Institute of the State of Pennsylvania for the Promotion of the Mechanic Arts: Devoted to Mechanical and Physical Science, Civil Engineering, the Arts and Manufactures, and the Recording of American and Other Patent InventionsFranklin Institute, 1828 Vols. 1-69 include more or less complete patent reports of the U. S. Patent Office for years 1825-1859. cf. Index to v. 1-120 of the Journal, p. [415] |
No grāmatas satura
1.–5. rezultāts no 100.
16. lappuse
... weight . The scraper c is then . drawn back from its recent situation ( beyond d , ) which spreads the coals out in an even layer , all over the bottom of that part of the re- tort exposed to the action of the fire . About a foot from ...
... weight . The scraper c is then . drawn back from its recent situation ( beyond d , ) which spreads the coals out in an even layer , all over the bottom of that part of the re- tort exposed to the action of the fire . About a foot from ...
56. lappuse
... weight , supposing them to be bars of even thickness , and equal to one another ; but it appears that the longer bar should have just twice the stiffness of the shorter one , and therefore must be considerably increased in thickness ...
... weight , supposing them to be bars of even thickness , and equal to one another ; but it appears that the longer bar should have just twice the stiffness of the shorter one , and therefore must be considerably increased in thickness ...
57. lappuse
... weight , these forees being exactly opposite to each other ; whereas , in the lever of the first kind , the fulcrum being placed between the power and weight , sustains the sum of both , and this , of every axle in the train , from the ...
... weight , these forees being exactly opposite to each other ; whereas , in the lever of the first kind , the fulcrum being placed between the power and weight , sustains the sum of both , and this , of every axle in the train , from the ...
58. lappuse
... weight of a heavy wheel , or shaft , may sometimes be employed as a substitute , situa- pressure on its journals ... weight , or otherwise exerting an enormous force , in direct oppo- sition to that received from the pinion . Abstract ...
... weight of a heavy wheel , or shaft , may sometimes be employed as a substitute , situa- pressure on its journals ... weight , or otherwise exerting an enormous force , in direct oppo- sition to that received from the pinion . Abstract ...
110. lappuse
... weight six miles an hour , and another carry three hundred weight four miles an hour . The load of the former is two , and the speed six ; the product , or useful effect , being twelve . The load of the lat- ter is three , and the speed ...
... weight six miles an hour , and another carry three hundred weight four miles an hour . The load of the former is two , and the speed six ; the product , or useful effect , being twelve . The load of the lat- ter is three , and the speed ...
Citi izdevumi - Skatīt visu
Bieži izmantoti vārdi un frāzes
acid aperture apparatus appears applied atmosphere bleaching boat boiler boiling borax bottom calcined canal capstan carriages cement centre charcoal chlorine colcothar colour common construction copper County cylinder described diameter drawing edge effect employed engine equal experiments fecula feet fire fixed fluid force Franklin Institute funnel furnace glass gold grain heat holes improvements inches inclined plane invention iron kind lever lime liquid liquor lower machine manner manufacture means melted metal method mill mode mordant motion mould box nitric acid obtained operation oxide Paris pass patent piece pipe piston placed plate portion potash pounds present pressure produced purpose quantity render round screw side steam steam engine stone substance sufficient sulphuric acid surface temperature thick tion tube upper valve vapour velocity vessel washed water wheel weight wheel whole wire wood yellow
Populāri fragmenti
330. lappuse - That any person or persons having discovered or invented any new and useful art, machine, manufacture, or composition of matter, or any new and useful improvement on any art, machine, manufacture, or composition of matter...
374. lappuse - I do hereby declare this to be my specification of the same; and that I do verily believe this my said specification doth comply, in all respects, fully, and without reserve or disguise, with the proviso in the said hereinbefore in part recited letters patent contained.
276. lappuse - ... to the author of any important discovery or useful improvement in light or in heat, which shall have been made and published by printing, or in any way made known to the public, in any part of the continent of America, or any of the American islands ; preference being always given to such discoveries as shall, in the opinion of the Academy, tend most to promote the good of mankind...
103. lappuse - They shall call the people unto the mountain; there they shall offer sacrifices of righteousness: for they shall suck of the abundance of the seas, and of treasures hid in the sand.
112. lappuse - Buchanan that the same quantity of human labour employed in working a pump, turning a winch, ringing a bell, and rowing a boat, are as the numbers 100, 167, 227, and 248. The most advantageous manner of applying human strength is in the act of rowing.
102. lappuse - The painting should be very highly finished; otherwise, when varnished, 'the tints will not appear united. " When the painting is quite dry, with rather a hard brush, passing it one way. varnish it with white wax, which is put into an earthen...
66. lappuse - Esq. in consequence of a communication made to him by a certain foreigner residing abroad, for an invention of certain improvements in machinery for the purpose of spinning wool, cotton and other fibrous substances.
375. lappuse - Derosne, do hereby describe the manner in which the said invention is to be performed, by the following description thereof, (that is to say...
333. lappuse - And it is hereby enacted and declared, that simply changing the form or the proportions of any machine, or composition of matter, in any degree, shall not be deemed a discovery.
331. lappuse - ... in such full, clear, and exact terms, as to distinguish the same from all other things before known, and to enable any person skilled in the art or science, of which it is a branch, or with which it is most nearly connected, to make, compound, and use the same.