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, 1836 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.
28. lappuse
... acid , as is sufficient to cover the surface of the mer- cury , and the positive and negative wires of a battery of twenty or thirty plates , arranged as indicated in figure 1 , the mer- cury being in contact with the negative pole ...
... acid , as is sufficient to cover the surface of the mer- cury , and the positive and negative wires of a battery of twenty or thirty plates , arranged as indicated in figure 1 , the mer- cury being in contact with the negative pole ...
30. lappuse
... acid ; in ammonia , though only one end of the needle appeared to evolve gas , it was not so obedient to the attractive force . These cir- cumstances indicate that the phenomena of motion , as here exhibited , have not their origin in ...
... acid ; in ammonia , though only one end of the needle appeared to evolve gas , it was not so obedient to the attractive force . These cir- cumstances indicate that the phenomena of motion , as here exhibited , have not their origin in ...
39. lappuse
... acid that will dissolve the baser metal and not the gold ; for if tin , zinc or bismuth , or some of the other metals be combined with gold by melting , it then becomes extremely diffi- cult to separate them . " " As other metals than ...
... acid that will dissolve the baser metal and not the gold ; for if tin , zinc or bismuth , or some of the other metals be combined with gold by melting , it then becomes extremely diffi- cult to separate them . " " As other metals than ...
148. lappuse
... acid and alkali , after each series : it was not very different in smoothness in the different series , until the closing one , which is marked in the table . The oil bath was used in these experiments . The drops of water were let fall ...
... acid and alkali , after each series : it was not very different in smoothness in the different series , until the closing one , which is marked in the table . The oil bath was used in these experiments . The drops of water were let fall ...
149. lappuse
... acid and with alkali . Temp . of max . vaporizat'n . Temp . of repulsion . Side drops . Centre . Side . Centre . 337 358 405 3811 Scale of oxide by high heat . 433 456 ) In the only other series of experiments with which the committee ...
... acid and with alkali . Temp . of max . vaporizat'n . Temp . of repulsion . Side drops . Centre . Side . Centre . 337 358 405 3811 Scale of oxide by high heat . 433 456 ) In the only other series of experiments with which the committee ...
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acid action æther alloy apparatus applied arrangement atmospheres August 17 bismuth blast boiler bottom canal carbonic acid carriage cast cast-iron cause claim clouds coal Committee construction copper cylinder described diameter effect elastic experiments explosion February 25 feet fire flue force Franklin Institute fuel furnace fusible fusible alloys gauge glass grains heat horizontal hydrogen improvement inches increased invention iron iron bowl Kennebec county lever lime machine manner means mercury metal mode motion mould nearly observed obtained October 27 opening operation oxide oxygen pass patent Pennsylvania Philadelphia pipe placed plate present pressure produced pump purpose quantity Rail Road rain remarks revolving roller sand screw shaft side slide specification stationary point stove sulphuric sulphuric acid surface temperature thermometer thickness tion tube upper valve vaporization vessel weight wheel wind wire York zinc
Populāri fragmenti
156. lappuse - ... shall fully explain the principle, and the several modes in which he has contemplated the application of that principle or character, by which it may be distinguished from other inventions, and shall particularly specify and point out the part, improvement, or combination which he claims as his own invention or discovery.
325. lappuse - Be it known that I, John Fitch, of Philadelphia, in the county of Philadelphia, the State of Pennsylvania, have invented a new and improved mode of preventing...
28. lappuse - 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, two reflecting telescopes, made by Mr.
246. lappuse - 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.
161. lappuse - ... it shall be the duty of the commissioner to renew and extend the patent, by making a certificate thereon of such extension...
94. lappuse - If nature has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called an idea, which an individual may exclusively possess as long as he keeps it to himself; but the moment it is divulged, it forces itself into the possession of every one, and the receiver cannot dispossess himself of it.
162. lappuse - And be it further enacted, That there shall be provided, for the use of said office, a library of scientific works and periodical publications, both foreign and American, calculated to facilitate the discharg'e of the duties hereby required of the chief officers therein, to be purchased under the direction of the Committee of the Library of Congress.
160. lappuse - ... tending to prove that the description and specification filed by the plaintiff, does not contain the whole truth relative to his invention or discovery , or that it contains more than is necessary to produce the described effect; which concealment or addition shall fully appear to have been made for the purpose of deceiving the public...
159. lappuse - And in case of his death, or any assignment by him made of the original patent, a similar right shall vest in his executors, administrators, or assignees.
159. lappuse - And the patent, so reissued, together with the corrected description and specification, shall have the same effect and operation in law, on the trial of all actions hereafter commenced for causes subsequently accruing, as though the same had been originally filed in such corrected form, before the issuing out of the original patent.