Journal of the Franklin Institute, Volume 9Pergamon Press, 1845 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 3
... glass exposed to the voice of a speaker . The materials used in Canon Mills , the physiologist's class room , the meanest cottage , or even the barn , are alike . Erroneous to suppose that Undulatory Action should be length- ened , and ...
... glass exposed to the voice of a speaker . The materials used in Canon Mills , the physiologist's class room , the meanest cottage , or even the barn , are alike . Erroneous to suppose that Undulatory Action should be length- ened , and ...
Page 5
... glass and fir wood with 15 or 16 times its velocity in common air . In the atmosphere it passes with equal velocity in all directions , if no more dense medium should intervene between the source of sound and the ear , and it is ...
... glass and fir wood with 15 or 16 times its velocity in common air . In the atmosphere it passes with equal velocity in all directions , if no more dense medium should intervene between the source of sound and the ear , and it is ...
Page 8
... glass . Glasgow Mech . & Eng . Mag . FOR THE JOURNAL OF THE FRANKLIN INSTITUTE . On Breast Water - Wheels . In the year 1833 , at page 6 , vol . xi , of this Journal , we published an elaborate and able series of experiments , made by ...
... glass . Glasgow Mech . & Eng . Mag . FOR THE JOURNAL OF THE FRANKLIN INSTITUTE . On Breast Water - Wheels . In the year 1833 , at page 6 , vol . xi , of this Journal , we published an elaborate and able series of experiments , made by ...
Page 67
... glass , & c .; William Davison , Baltimore , Maryland , October 9 . " The nature of this invention consists in writing upon the surface of ground glass , with a pen of peculiar construction , prepared with fine chalk , so as to render ...
... glass , & c .; William Davison , Baltimore , Maryland , October 9 . " The nature of this invention consists in writing upon the surface of ground glass , with a pen of peculiar construction , prepared with fine chalk , so as to render ...
Page 68
... glass , the pen with which the ink is laid upon the glass being provided with a reservoir attached to the concave part , which takes a supply of ink at each dip . There is a piece of sponge compressed and put in a cup provided with a ...
... glass , the pen with which the ink is laid upon the glass being provided with a reservoir attached to the concave part , which takes a supply of ink at each dip . There is a piece of sponge compressed and put in a cup provided with a ...
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Popular passages
Page 258 - Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is (d).
Page 43 - Happy is the man that findeth wisdom, and the man that getteth understanding. For the merchandise of it is better than the merchandise of silver, and the gain thereof than fine gold.
Page 153 - Committee appointed to inquire into the merits of the atmospheric system of railway have examined the matters to them referred, and have agreed to the following Report. Your Committee have given their best attention to this interesting subject.
Page 105 - ... constructed and arranged substantially in the manner and for the purpose herein set forth.
Page 305 - Ocean, the first thing which strikes us is, that, the north-east and south-east monsoons, which are found the one on the north and the other on...
Page 371 - I claim the manner in which the bricks are received, compressed, and delivered ; but what I do claim as my invention, and which I desire to secure by letters patent, is the...
Page 266 - 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 177 - ... with the solid portion of the coal. From the chemical changes which take place in the combination of the hydrogen with oxygen, the bulk of the products is found to be to the bulk of the atmospheric air required to furnish the oxygen, as 10 is to 11.
Page 99 - Having thus fully described my invention, what I claim therein as new, and desire to secure by letters patent, is...