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, 1834 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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Page 27
... centre , upon which it is free to revolve . The cutting knives , are round plates or disks , fixed upon a horizontal shaft , which is to be turned by a winch ; the disks decrease in size as they approach the centre , and the bottom of ...
... centre , upon which it is free to revolve . The cutting knives , are round plates or disks , fixed upon a horizontal shaft , which is to be turned by a winch ; the disks decrease in size as they approach the centre , and the bottom of ...
Page 31
... centre ; also the link . " Some of the parts mentioned in the claim are merely auxiliary to the general plan . 12. For Machinery for working of Churns ; Philo B. Pratt , Kent , Litchfield county , Connecticut , July 22 . A lever beam is ...
... centre ; also the link . " Some of the parts mentioned in the claim are merely auxiliary to the general plan . 12. For Machinery for working of Churns ; Philo B. Pratt , Kent , Litchfield county , Connecticut , July 22 . A lever beam is ...
Page 46
... centre of a circle of gas flame . hgh The annexed figure represents one of the apparatus , the gas burner and the conical co- ver being shown in sections . Several of these apparatus of different sizes are proposed to be adapted to a ...
... centre of a circle of gas flame . hgh The annexed figure represents one of the apparatus , the gas burner and the conical co- ver being shown in sections . Several of these apparatus of different sizes are proposed to be adapted to a ...
Page 69
... centre of a grove there stood an oak , which , though shapely and tall on the whole , bulged out into a large excrescence about the middle of the stem . On this a pair of ravens had fixed their residence for such a series of years ...
... centre of a grove there stood an oak , which , though shapely and tall on the whole , bulged out into a large excrescence about the middle of the stem . On this a pair of ravens had fixed their residence for such a series of years ...
Page 109
... centre of gravity is 26.23 inches from A , and 13.21 26.23 in . inches from B. Hence = 1.985 factor by which any al- 13.21 teration in the results from knife edge A must be multiplied , in order to obtain corresponding alterations in ...
... centre of gravity is 26.23 inches from A , and 13.21 26.23 in . inches from B. Hence = 1.985 factor by which any al- 13.21 teration in the results from knife edge A must be multiplied , in order to obtain corresponding alterations in ...
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apparatus appears applied arch arrangement ash pit avoirdupois boat boiler boiling bottom bushel carriage cast iron centre claim Clear day committee consists construction copper cylinder described diameter distance drawing edge effect employed engine experiments feet fire flues frame Franklin Institute furnace gallons glass groove half heat horizontal improvement inches intended invention length lever liquid machine machinery magnetic manner manufacture means mercury metal minutes mode motion November 19 observations obtained operation pass patent pendulum Pennsylvania Philadelphia piece pipe piston placed plate pounds present pressure principle produced pump purpose quantity revolving rollers screw shaft side slide specific gravity specific heat specification spring standard steam steam engine stove substance surface temperature thickness tion troy pound tube turpentine upper valve varnish vessel water wheel weights and measures wheel wire wood wrought iron York zinc
Popular passages
Page 99 - Tis education forms the common mind ; Just as the twig is bent the tree's inclined.
Page 413 - Now know ye, that in compliance with the said proviso, I, the said Moses Poole, do hereby declare that the nature of the said invention, and the manner in which the same is to be performed...
Page 190 - Now Know Ye, that in compliance with the said proviso, I, the said Adolphe Nicole, do hereby declare that the nature of my said Invention, and the manner in which the same is to be performed, are particularly described and ascertained in and by the following statement thereof, reference being had to the Drawing hereunto annexed, and to the figures and letters marked thereon...
Page 411 - Walton do hereby describe the manner in which my said Invention is to be performed by the following statement thereof reference being had to the Drawing annexed and to the figures and letters marked thereon that is to say DESCRIPTION OF THE DRAWING.
Page 374 - And in the case of any machine, he 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...
Page 45 - Palmer, do hereby declare, that the nature of my said invention, and the manner in which the same is to be performed, is particularly described and ascertained in and by the following description thereof...
Page 374 - ... 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 :•. branch, or with which it is most nearly connected; to make, compound, and use the same.
Page 231 - ... and shall deliver a written description of his invention, and of the manner of using, or process of compounding, the same, in such full, clear, and exact terms, as to distinguish the same from all other things before known...
Page 373 - 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...
Page 222 - ... and every such ship or vessel, with her tackle, apparel, and furniture, together with all materials, arms, ammunition and stores, which may have been procured for the building and equipment thereof, shall be forfeited, one half to the use of the informer, and the other half to the use of the United States.