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 68
... metal may adhere . The pins thus prepared are put in the mould , and the spaces intended for the recep- tion of the knuckles of the second half are filled up with sand , and after the first half of the hinge has been cast , it is put in ...
... metal may adhere . The pins thus prepared are put in the mould , and the spaces intended for the recep- tion of the knuckles of the second half are filled up with sand , and after the first half of the hinge has been cast , it is put in ...
Page 79
... metal being hard no uneven- ness of the joint , or canting of the joint chair can take place , which is one of the great evils felt with wooden keys , for here the wood being comparatively soft and soon affected by abrasion , also the ...
... metal being hard no uneven- ness of the joint , or canting of the joint chair can take place , which is one of the great evils felt with wooden keys , for here the wood being comparatively soft and soon affected by abrasion , also the ...
Page 99
... metal , or other hard substance , and acting against a piston working therein , for the purpose of springs for railroad cars , or other car- riages It may be well to say , that at the time application was made for letters patent for ...
... metal , or other hard substance , and acting against a piston working therein , for the purpose of springs for railroad cars , or other car- riages It may be well to say , that at the time application was made for letters patent for ...
Page 143
... metal , is covered with a thin coat of sulphur , or gum lac , or any other substance which exercises a repulsion of water ; the boiling water and the vapor then have the same temperature . 3d . Contrary to the opinion generally admitted ...
... metal , is covered with a thin coat of sulphur , or gum lac , or any other substance which exercises a repulsion of water ; the boiling water and the vapor then have the same temperature . 3d . Contrary to the opinion generally admitted ...
Page 158
... metal is a good imitation of the English " britannia metal , " the surface is good , and finely finished , the solder- ing neat ; in all respects they are highly creditable to the makers , and fully equal to any exhibited . The forms of ...
... metal is a good imitation of the English " britannia metal , " the surface is good , and finely finished , the solder- ing neat ; in all respects they are highly creditable to the makers , and fully equal to any exhibited . The forms of ...
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acid ammonia apparatus applied arrangement atmosphere attached boiler bottom cane sugar carbonic carbonic acid carriage cast iron cause cent centre chamber claim coal color combination committee connected consists constructed copper cutter cylinder daguerreotype deposited described desire to secure dextrin diameter effect employed engine exhibited experiments explosion feet fire flue force frame FRANKLIN INSTITUTE friction furnace gases glass heat horizontal hydrogen improvement inches inclined plane invention iron joint letters patent lever liquid machine manner manufacture means metal mode molasses operation oxide pass Philadelphia piece pipe piston placed plate present pressure produced puddling furnace purpose quantity rails railway rollers screw secure by letters shaft side silica slide solution specific gravity specimens steam stove substantially sugar sulphuric acid surface temperature thickness Third Premium tion tons tube upper valve velocity vertical vessel weight wheel whole wood zinc
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...