The Mechanic's Magazine, Museum, Register, Journal and Gazette, Volumen42Robertson, 1845 |
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Página 2
... give 4 feet of water upon it during low water , or 18 feet at high water of ordinary spring tides . Near the termination of the north pier , there was built , in 1802 , by Mr. Pickernell , then engineer to the Commissioners , an oc ...
... give 4 feet of water upon it during low water , or 18 feet at high water of ordinary spring tides . Near the termination of the north pier , there was built , in 1802 , by Mr. Pickernell , then engineer to the Commissioners , an oc ...
Página 7
... give additional pressure . They were previously closed all round with Roman cement , excepting a few apertures left on purpose for the air to escape , and which allowed the grout completely to fill the joint . Great care was taken to ...
... give additional pressure . They were previously closed all round with Roman cement , excepting a few apertures left on purpose for the air to escape , and which allowed the grout completely to fill the joint . Great care was taken to ...
Página 11
... give the reason why , in the chief feature , 11 I think Hallette's plan inferior to Messrs . Clegg and Co.'s . In the first place , I do not think " elastic lips , " or inflated tubes of animal or vegetable production , will bear the ...
... give the reason why , in the chief feature , 11 I think Hallette's plan inferior to Messrs . Clegg and Co.'s . In the first place , I do not think " elastic lips , " or inflated tubes of animal or vegetable production , will bear the ...
Página 12
... give the same result . " N. " says the crank end of the con- necting - rod and its crank - pin must always travel at equal velocities , and to- gether . To obtain , then , the average effect , we must ascertain what is the power exerted ...
... give the same result . " N. " says the crank end of the con- necting - rod and its crank - pin must always travel at equal velocities , and to- gether . To obtain , then , the average effect , we must ascertain what is the power exerted ...
Página 16
... give the same result , and even more promptly . Messrs . Davison and Symington's Cask - cleansing Process . In a paper on this process , recently read at the Society of Arts , it was stated that in some establishments in London there ...
... give the same result , and even more promptly . Messrs . Davison and Symington's Cask - cleansing Process . In a paper on this process , recently read at the Society of Arts , it was stated that in some establishments in London there ...
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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.