78 Ergebnisse - Zeige 41 von 60.

Excerpt from Journal of the Franklin Institute, of the State of Pennsylvania, and American Repertory of Mechanical and Physical Science, Civil Engineering, the Arts and Manufactures, and of American and Other Patented Inventions, 1847, Vol. 43: Third Series, Vol. XIIIClaim. Having thus explained my invention, I shall claim the plate as combined with the sliding frame for the purpose of receiving the cap plate of any mould of various moulds, as...

Excerpt from An Address on the Progress of Manufactures and Internal Improvement, in the United States, and Particularly, on the Advantages to Be Derived From the Employment of Slaves in the Manufacturing of Cotton and Other Goods: Delivered in the Hall of the Franklin Institute, November 6, 1827Should the truth of the doctrine which I have advocated be admitted, the philanthropist, and the political economist, will hail with equal pleasure th...

Excerpt from An Address on the Progress of Manufactures and Internal Improvement, in the United States, and Particularly, on the Advantages to Be Derived From the Employment of Slaves in the Manufacturing of Cotton and Other Goods: Delivered in the Hall of the Franklin Institute, November 6, 1827Should the truth of the doctrine which I have advocated be admitted, the philanthropist, and the political economist, will hail with equal pleasure th...

Excerpt from Journal of the Franklin Institute of the State of Pennsylvania, 1831, Vol. 7: Devoted to the Mechanic Arts, Manufactures, General Science, and the Recording of American and Other Patented InventionsFrom this perfection of the action I have been able to render' the span of the natural action to six and a half inches, and the others in proportion, without in any degree interfering with a clear and rapid execution. Or the common span...

Excerpt from The Franklin Journal, and American Mechanics' Magazine, Vol. 3: Devoted to the Useful Arts, Internal Improvements, and General ScienceWe would again urge upon our artisans and manufacturers, the great advantage which would result from their publishing the results of their observations and experience, and again assure them, that.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more ...

Excerpt from Journal of the Franklin Institute of the State of Pennsylvania, 1831, Vol. 7: Devoted to the Mechanic Arts, Manufactures, General Science, and the Recording of American and Other Patented InventionsFrom this perfection of the action I have been able to render' the span of the natural action to six and a half inches, and the others in proportion, without in any degree interfering with a clear and rapid execution. Or the common span...

Excerpt from Journal of the Franklin Institute of the State of Pennsylvania, Vol. 4: Devoted to the Mechanic Arts, Manufactures, General Science, and the Recording of American and Other Patented InventionsFrom the time when it was known that the acetate of alumine was preferable, as a mordant, to alum, it was admitted, as a necessary consequence of this discovery, that the best proportions for obtain ing the acetate, were precisely those in wh...

Excerpt from The Franklin Journal, and American Mechanics' Magazine, Vol. 6: Devoted to the Useful Arts, Internal Improvements, General Science, and the American and Other Patented Inventors Under the Patronage of the Franklin Institute of the State of PennsylvanniaThe stones should be set, in the first instance, with great care, for if they are too near, the rice will be broken, and if too far apart, the, paddy will get through without being ...

Keine Beschreibung.

Excerpt from Journal of the Franklin Institute of the State of Pennsylvania and American Repertory of Mechanical and Physical Science, Civil Engineering, the Arts and Manufactures, and of American and Other Patented Inventions, 1843, Vol. 5Before indicating the steps by the aid of which we can transfer the formulas for demi-revetments into purely numerical tables, it is better that we should brie¿y recall the means of obtaining them.About the ...

Keine Beschreibung.

Excerpt from Journal of the Franklin Institute of the State of Pennsylvania and Mechanics' Register, 1838, Vol. 21: Devoted to Mechanical and Physical Science, Civil Engineering, the Arts and Manufactures, and the Recording of American and Other Patented InventionsMr. Chaptal published in 1787 a memoir on the use of the ochreous earths of the south of France. These earths were calcined in a kiln like those used in some countries for burning li...

Keine Beschreibung.

Excerpt from Journal of the Franklin Institute of the State of Pennsylvania, 1834, Vol. 13: Devoted to the Mechanic Arts, Manufactures, General Science, and the Recording of American and Other Patented Inventions Another seed valuable for oil is the sun ¿ower: I have never tried this, but am told it produces a very excellent salad oil, I have no doubt the culture of it, properly managed, would be both useful and profitable. About the Publish...

Excerpt from Journal of the Franklin Institute of the State of Pennsylvania, 1835, Vol. 16: Devoted to the Mechanic Arts, Manufactures, General Science, and the Recording of American and Other Patented Inventions As the experimental results directly obtained may possibly prove of value to others than the estimable individual for whom they were to be applied, 1 have thought it right to put them on record. About the Publisher Forgotten Books ...

Excerpt from The Franklin Journal, and American Mechanics' Magazine, Vol. 2: Devoted to the Useful Arts, Internal Improvements, and General Science, July December, 1826 To produce the curl, the bars or straps are drawn into bars about three quarters of an inch square, and twisted, some to the right and others to the left hand, one of each sort is then welded together, doubled up and drawn, out, as before described, and, according to the skill...

Excerpt from Journal of the Franklin Institute of the State of Pennsylvania, 1835, Vol. 19: Devoted to the Mechanic Arts, Manufactures, General Science, and the Recording of American and Other Patented Inventions But even allowing it to Operate, the undulating surface is increased in length by a quantity that exactly compensates for the reduction in the friction of the carriage. About the Publisher Forgotten Books publishes hundreds of thou...

Excerpt from Journal of the Franklin Institute of the State of Pennsylvania and American Repertory of Mechanical and Physical Science, Civil Engineering, the Arts and Manufactures, and of American and Other Patented Inventions, 1845, Vol. 9 Much has been effected in the economy of heat, but it is applicable in such a variety of ways, and to so many purposes, that although much of utility is known, probably still more remains to be under stood...

Excerpt from The Franklin Journal, and American Mechanics' Magazine, Vol. 4: Devoted to the Useful Arts, Internal Improvements, and General Science In order to estimate higher degrees of compression, Mr. Perkins constructed another piezometer eight inches long, ground internally perfectly cylindrical, and stopped at its upper extremity, with a ¿at disk of glass cemented into it. This tube be filled with water, and subjected it to a pressure o...

Excerpt from Journal of the Franklin Institute of the State of Pennsylvania, 1832, Vol. 9: Devoted to the Mechanic Arts, Manufactures, General Science, and the Recording of American and Other Patented Inventions If, now, according to the rule given above, the square root of be multiplied by 8, the product will be feet, the velocity with which air at a density due to the temperature of 32, will ¿ow into a chimney at the above temperatures. In...