Journal of the Franklin InstituteFranklin Institute, 1849 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] |
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1.–5. rezultāts no 100.
3. lappuse
... equal to two tons to each foot lineal of single line of rail . This test was fixed upon , in the belief that the greatest possible load which can , in working , be placed upon each line of rails , is about one ton per foot lineal ; and ...
... equal to two tons to each foot lineal of single line of rail . This test was fixed upon , in the belief that the greatest possible load which can , in working , be placed upon each line of rails , is about one ton per foot lineal ; and ...
44. lappuse
... equal to the eight of fig . 3 . The plates were next raised , till their lower edges were on a level with those of No. 1. In that position , two inches of their upper extremities were above the surface of the river ; but ...
... equal to the eight of fig . 3 . The plates were next raised , till their lower edges were on a level with those of No. 1. In that position , two inches of their upper extremities were above the surface of the river ; but ...
45. lappuse
... equal to them . There was a difference of opinion on the last point - some thinking they were quite as effective as the opposing eight . 11 12 13 14 M Z Z N Fig . 12 was a semicircle . Mr. B. undertook to test these . They turned the ...
... equal to them . There was a difference of opinion on the last point - some thinking they were quite as effective as the opposing eight . 11 12 13 14 M Z Z N Fig . 12 was a semicircle . Mr. B. undertook to test these . They turned the ...
46. lappuse
... equal . From these experiments , it appears that , with equal areas , and equal dip , triangular blades may be rendered twice as effective as ordinary rect- angular ones . This is made manifest by figs . 7 , 12 , and 16 , -four of the ...
... equal . From these experiments , it appears that , with equal areas , and equal dip , triangular blades may be rendered twice as effective as ordinary rect- angular ones . This is made manifest by figs . 7 , 12 , and 16 , -four of the ...
47. lappuse
... equal extent with the lower ? Why accumulate surface where it is of little avail , and withhold it from where it is most wanted ? -expending materials and power without any adequate return , if not at an absolute loss . The quantity of ...
... equal extent with the lower ? Why accumulate surface where it is of little avail , and withhold it from where it is most wanted ? -expending materials and power without any adequate return , if not at an absolute loss . The quantity of ...
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anthracite anthracite coal apparatus application attached beam boiler bolt carbonic acid carriage cast iron catoptric cent centre chamber charcoal claim the combination coal combustion connected connexion constructed copper curved cutter cylinder deflexion described desire to secure diameter effect elastic electricity engine experiments feet fire flues frame Franklin Institute fuel furnace gases girder gutta percha heat horizontal hydrogen improvement consists inches invention consists lamp letters patent lever light machine machinery magnetic manner set manufacture March 27 Massachusetts means metal miles mode motion Ohio operation oven oxide passing patentee says Pennsylvania pipe placed plate present pressure produced propeller purpose set quantity rail Railroad railway reflectors revolving road rollers screw secure by letters shaft side sliding spring steam stove substantially as set surface temperature tion tons tube U. S. Patent Office upper valve vertical vessel weight wheel whole wire York
Populāri fragmenti
478. lappuse - What we claim as our invention, and desire to secure...
215. lappuse - Having thus described the nature of my invention, and the manner in which the same is to be performed, I would have it understood that I do not confine myself to the...
166. 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.
209. 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.
194. lappuse - And yet it is so mobile, that we have lived years in it before we can be persuaded that it exists at all, and the great bulk of mankind never realize the truth that they are bathed in an ocean of air. Its weight is so enormous, that iron shivers before it like glass ; yet a soap-bell sails through it with impunity, and the tiniest insect waves it aside with its wing.
336. lappuse - Schools, in which the Definitions and Rules of Geometry are familiarly explained ; the Practical Problems are arranged, from the most simple to the more complex, and in their description technicalities are avoided as much as possible.
59. lappuse - That whenever an application shall be made for a patent which, in the opinion of the Commissioner, would interfere with any other patent for which an application may be pending, or with any unexpired patent which shall have been granted, it shall be the duty of the Commissioner to give notice thereof to such applicants, or patentees, as the case may be; and if either shall be dissatisfied with the decision of the Commissioner on the question of priority of right or invention...
121. lappuse - ... numberless series of pilasters, arches, castles well delineated, regular columns, lofty towers, superb palaces, with balconies and windows, extended alleys of trees, delightful plains with herds and flocks, armies of men on foot and horseback, and many other strange images, in their natural colours and proper actions, passing rapidly in succession along the surface of the sea...
382. lappuse - Having thus fully described the manner in which I construct and employ my portable coffer dam, what I claim therein as new, and desire to secure by letters patent, is the manner in which I have arranged and combined...
59. lappuse - And it shall be the duty of said chief justice, on petition, to hear and determine all such appeals, and to revise such decisions in a summary way, on the evidence produced before the Commissioner, at such early and convenient time as he may appoint, first notifying the Commissioner of the time and place of hearing, whose duty it shall be to give notice thereof to all parties who appear to be interested therein, in such manner as said judge shall prescribe. The Commissioner shall also lay before...