The Franklin Journal, and American Mechanics' Magazine, Volumes 25-261840 |
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Page 20
... CONTINUED . ] Notices of the advancement of Mineralogy in 1837 , from Berzelius Jahresbericht . ( Continued from Vol . XXIV , page 367. ) In the former report p . 206 , I mentioned two of the new minerals analy- sed by Thomson , one of ...
... CONTINUED . ] Notices of the advancement of Mineralogy in 1837 , from Berzelius Jahresbericht . ( Continued from Vol . XXIV , page 367. ) In the former report p . 206 , I mentioned two of the new minerals analy- sed by Thomson , one of ...
Page 36
... continued con- tact with sea water . 13. The properties and chemical constitution of the various kinds of coal . 14. A memoir of Sir Hugh Middleton , with an account of his works . 15. A memoir of Arthur Woolf , with an account of his ...
... continued con- tact with sea water . 13. The properties and chemical constitution of the various kinds of coal . 14. A memoir of Sir Hugh Middleton , with an account of his works . 15. A memoir of Arthur Woolf , with an account of his ...
Page 38
... continued to be as necessary in its progress , requiring great changes , however , to enable them to keep pace with the times . Schools of arts , or polytechnic schools , have originated in the requirements of modern times , in which ...
... continued to be as necessary in its progress , requiring great changes , however , to enable them to keep pace with the times . Schools of arts , or polytechnic schools , have originated in the requirements of modern times , in which ...
Page 42
... continued ; and , in addition , descriptive . geometry , trigonometry , stereometry , mixed mathematics , mineralogy , and the art of construction , are studied . In the upper or first section , perspec- tive , stone - cutting ...
... continued ; and , in addition , descriptive . geometry , trigonometry , stereometry , mixed mathematics , mineralogy , and the art of construction , are studied . In the upper or first section , perspec- tive , stone - cutting ...
Page 48
... continued moderately until the 12th , changing into snow on the 9th at night , half an inch deep , ( the first of ... continued until 4 P. M. , when it lay 7 inches deep . It was followed by hail all night . December 31 , a pretty thick ...
... continued moderately until the 12th , changing into snow on the 9th at night , half an inch deep , ( the first of ... continued until 4 P. M. , when it lay 7 inches deep . It was followed by hail all night . December 31 , a pretty thick ...
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ammonia apparatus applied arrangement atmosphere bars bitumen boiler canal carbonic acid carriage cast iron cent Certificate of Honourable claim Clear-do Cloudy-do coal colour combination Committee consists construction containing copper cost cylinder deposited described dew point diameter distance dollars effect employed equal exhibited experiments Fahrenheit feet Franklin Institute friction frustrum furnace glass heat Honourable Mention improvement inches inclined plane invention labour length lever lime liquid locomotive machine magnesia manner manufacture matter means metal miles mode motion nitric acid obtained operation oxide Papin passing patent Philadelphia piece pipe piston placed plate portion potash pressure produced puddling furnace purpose quantity railroads rails railway resistance revolving road rollers screw shaft side silver solution specimens steam engine stone stroke engine sulphate sulphuric sulphuric acid surface temperature tion tube valve vessel wages weight wheels white lead whole wood zinc
Popular passages
Page 10 - One vessel of water rarefied by fire driveth up forty of cold water ; and a man that tends the work is but to turn two cocks, that, one vessel of water being consumed, another begins to force and refill with cold water, and so successively, the fire being tended and kept constant, which the selfsame person may likewise abundantly perform in the interim, between the necessity of turning the said cocks.
Page 171 - 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 9 - 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 touch-hole . and making a constant fire under it, within twenty-four hours it burst, and made a great crack...
Page 29 - ... to hold by virtue of the patent or assignment, stating therein the extent of his interest in such patent...
Page 31 - January, annually, a list of all patents which shall have been granted during the preceding year, designating, under proper heads, the subjects of such patents, and furnishing an alphabetical list of the patentees, with their places of residence; and he shall also furnish a list of all patents which shall have become public property during the same period; together with such other information of the state and condition of the Patent Office as may be useful to Congress or to the public.
Page 29 - But no such disclaimer shall affect any action pending at the time of its being filed, except so far as may relate to the question of unreasonable neglect or delay in filing it.
Page 32 - ... the Commissioner shall furnish the court with the grounds of his decision, fully set forth in writing, touching all the points involved by the reasons of appeal.
Page 81 - 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 26 - Lord one thousand eight hundred and thirtysix, or in an assignment of any patent, or interest therein, executed and recorded prior to the said fifteenth day of December, may, without charge, on presentation or transmission thereof to the Commissioner of Patents, have the same recorded anew in the Patent Office, together with the descriptions, specifications of claim and drawings annexed or belonging to the same ; and it shall be the duty of the commissioner to cause the same, or any authenticated...
Page 391 - 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.