Journal of the Franklin InstituteVols. 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 30
I also claim the arrangement of a secondary driver , placed above and acting independently of the main driver , in such a manner that it will drive the rived shingle from under the block , and deposit it upon the bed forward of the main ...
I also claim the arrangement of a secondary driver , placed above and acting independently of the main driver , in such a manner that it will drive the rived shingle from under the block , and deposit it upon the bed forward of the main ...
Page 31
What I claim as my invention is , the screw driver spring catches , attached to the flat portions of the screw driver , and permitting longitudinal as well as lateral adjustment , and the barrel in which the whole is placed , in ...
What I claim as my invention is , the screw driver spring catches , attached to the flat portions of the screw driver , and permitting longitudinal as well as lateral adjustment , and the barrel in which the whole is placed , in ...
Page 32
... aft 10 feet 5 inches ) clearance at lond line , 25 ° launching line , 220 Weight of the hull , 1380 tons . The hull is braced by iron bars , 45 feet long , and 6 inches by 1 inch in section , placed 4 feet from centre to centre ...
... aft 10 feet 5 inches ) clearance at lond line , 25 ° launching line , 220 Weight of the hull , 1380 tons . The hull is braced by iron bars , 45 feet long , and 6 inches by 1 inch in section , placed 4 feet from centre to centre ...
Page 47
... I placed them on supports , distant 4 feet 6 inches from each other , and applied on the centre of the bars a gradual pressure , by means of a screw , until the bars broke . The breaking weights were Unpurified — 487 lbs .
... I placed them on supports , distant 4 feet 6 inches from each other , and applied on the centre of the bars a gradual pressure , by means of a screw , until the bars broke . The breaking weights were Unpurified — 487 lbs .
Page 64
The glass plate is then placed in the camera , where at the same time the vapor of some quicksilver in an iron cup in the bottom of the camera acts upon the iodide of sulphur with which it is coated , and it receives the photographic ...
The glass plate is then placed in the camera , where at the same time the vapor of some quicksilver in an iron cup in the bottom of the camera acts upon the iodide of sulphur with which it is coated , and it receives the photographic ...
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