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, 1840 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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Results 1-5 of 99
Page 48
... Bar . rose to 30.08 inches . Such a temperature in November is very unusual from May until this day the Ther . has not been so low , nor the Bar , as high . In December rain began at 8 P. M. on the 6th , and continued moderately until ...
... Bar . rose to 30.08 inches . Such a temperature in November is very unusual from May until this day the Ther . has not been so low , nor the Bar , as high . In December rain began at 8 P. M. on the 6th , and continued moderately until ...
Page 54
... bars are acted upon by loads , which , in the heavier weights , are almost sufficient to produce fracture : yet fracture is not ( except in one instance ) produced , and to what extent the power of resistance may yet be carried is left ...
... bars are acted upon by loads , which , in the heavier weights , are almost sufficient to produce fracture : yet fracture is not ( except in one instance ) produced , and to what extent the power of resistance may yet be carried is left ...
Page 55
... bars . I hope shortly to induce my friend Mr. Hodgkinson , Professor Barlow , or some other able mathematician , to ... bars until they were broken , but also to charge them with different weights , and , by alternate heating and ...
... bars . I hope shortly to induce my friend Mr. Hodgkinson , Professor Barlow , or some other able mathematician , to ... bars until they were broken , but also to charge them with different weights , and , by alternate heating and ...
Page 56
... bar was air during intense broken in the open frost . air . The microscopic appearance of this iron will be found at No. I. Table , on the transverse strain . Results reduced to those of bars 1.00 in . square , and 2 ft . 3 in . between ...
... bar was air during intense broken in the open frost . air . The microscopic appearance of this iron will be found at No. I. Table , on the transverse strain . Results reduced to those of bars 1.00 in . square , and 2 ft . 3 in . between ...
Page 57
... bar was broken during intense frost . : +8 square , and 2 ft . 3 in . between supports . ( b ) . Modulus of Breaking Ultimate 6 x d , or weight deflection power of ( d ) . resisting Results reduced to those of bars 1.00 in . Product ...
... bar was broken during intense frost . : +8 square , and 2 ft . 3 in . between supports . ( b ) . Modulus of Breaking Ultimate 6 x d , or weight deflection power of ( d ) . resisting Results reduced to those of bars 1.00 in . Product ...
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Popular passages
Page 115 - 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 steam-boilers from bursting, and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon.
Page 287 - General, who is a member of the Cabinet of the President of the United States: but, like the other cabinet officers, receives only the moderate salary of 6000 dollars.
Page 98 - 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.
Page 25 - Whenever, through inadvertence, accident, or mistake. and without any fraudulent or deceptive intention, a patentee has claimed more than that of which he was the original or first inventor or discoverer...
Page 18 - 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.
Page 83 - A description and draught of a new-invented machine for carrying vessels or ships out of or into any harbour, port, or river, against wind or tide, or in a calm.
Page 305 - Now know ye, that in compliance with the said proviso, I, the said William Graham, do hereby declare the nature of the said invention, and the manner in which the same is to be performed...
Page 11 - I have taken a piece of a whole cannon, whereof the end was burst, and filled it three quarters full of water, stopping and screwing up the broken end, as also the touchhole, and making a constant fire under it ; within twenty-four hours it burst, and made a great crack...
Page 25 - Office; and it shall thereafter be considered as part of the original specification to the extent of the interest possessed by the claimant and by those claiming under him after the record thereof.
Page 25 - The specifications and claim in every such case shall be subject to revision and restriction in the same manner as original applications are.