The Mechanic's Magazine, Museum, Register, Journal and Gazette, Volumen42Robertson, 1845 |
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Página 2
... whole building , to the proper level . It was deemed advisable to adopt the latter course . The first of these operations was to take the building northward . On the 15th June the masons began to cut apertures on the north and south ...
... whole building , to the proper level . It was deemed advisable to adopt the latter course . The first of these operations was to take the building northward . On the 15th June the masons began to cut apertures on the north and south ...
Página 4
... whole was drawn closely to the building by screws . The raking braces were next erected , and their feet passed between the timbers of the cradle and cill - beams fixed thereon , so that the whole framing could be firmly bound together ...
... whole was drawn closely to the building by screws . The raking braces were next erected , and their feet passed between the timbers of the cradle and cill - beams fixed thereon , so that the whole framing could be firmly bound together ...
Página 5
... whole surface . They were of American oak , which is a very solid wood , and as it could be procured straight in long lengths , it was preferred to any other timber . The rest of the timber employed was Memel red and yellow pine ...
... whole surface . They were of American oak , which is a very solid wood , and as it could be procured straight in long lengths , it was preferred to any other timber . The rest of the timber employed was Memel red and yellow pine ...
Página 6
... whole power of eighteen men , applied in the manner stated to be 52,480 lbs . The gross weight moved was calculated to be 757-120 lbs . or 338 tons . The distances traversed were deter- mined by the various lengths of the railway beams ...
... whole power of eighteen men , applied in the manner stated to be 52,480 lbs . The gross weight moved was calculated to be 757-120 lbs . or 338 tons . The distances traversed were deter- mined by the various lengths of the railway beams ...
Página 10
... whole amount of the surface with which the gases must come in contact , tending to impede their course by friction , will be the same in both cases . " Now if Mr. Murray means , as I understand him , that one flue of a square foot in ...
... whole amount of the surface with which the gases must come in contact , tending to impede their course by friction , will be the same in both cases . " Now if Mr. Murray means , as I understand him , that one flue of a square foot in ...
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Pasajes populares
Página 109 - they were in large flocks containing both species in the proportion of two of the former to one of the latter " (the present)
Página 293 - Orders of The House, examined the matters to them referred; and have agreed to the following REPORT...
Página 83 - ... a way to make my vessels so that they are strengthened by the force within them, and the one to fill after the other, I have seen the water run like a constant...
Página 84 - An admirable and most forcible way to drive up water by fire, not by drawing or sucking it upwards, for that must be as the philosopher calleth it, infra spheeram activitatis, which is but at such a distance. But this way hath no bounder, if the vessels be strong enough ; for I have taken a piece of a whole cannon, whereof the end was burst, and filled it three...
Página 62 - A Treatise on the Forces which produce the Organization of Plants. With an Appendix, containing several Memoirs on Capillary Attraction, Electricity, and the Chemical Action of Light.
Página 254 - It is far from my wish to promulgate to the world that the ridiculous expectations, or rather professions, of the enthusiastic speculatist, will be realised, and that we shall see engines travelling at the rate of twelve, sixteen, eighteen, twenty miles an hour. Nothing could do 'more harm towards their general adoption and improvement than the promulgation of such nonsense...
Página 254 - It was not an easy task for me to keep the engine down to ten miles an hour, but it must be done, and I did my best.
Página 226 - Walton do hereby describe the manner in which my said invention is to be performed, by the following statement thereof, reference being had to the drawing annexed, and to the figures and letters marked thereon...
Página 83 - ... but unanimously, and with harmony agreeing they all augment and contribute strength unto the intended work and operation: And therefore I call this A Semi-omnipotent Engine, and do intend that a Model thereof be buried with me.
Página 255 - It is possible that roads paved with iron may hereafter be employed for the purpose of expeditious travelling, since there is scarcely any resistance to be overcome except that of the air; and such roads will allow the velocity to be increased almost without limit.