The Mechanic's Magazine, Museum, Register, Journal and Gazette, Volume 31Robertson, 1839 |
From inside the book
Results 1-5 of 100
Page 5
... fact that merits investigation on the part of gas - pro- prietors , that an immense annual sum of money is annually sacrificed by many of our large establishments in consequence of the enormous waste of gas , and de- struction to the ...
... fact that merits investigation on the part of gas - pro- prietors , that an immense annual sum of money is annually sacrificed by many of our large establishments in consequence of the enormous waste of gas , and de- struction to the ...
Page 21
... fact of its being in existence and in my possession at that period , is placed beyond a doubt - whereas , the specification of Mr. Hall's patent is dated June 18 , following . But to prove the invention was original in my mind , I will ...
... fact of its being in existence and in my possession at that period , is placed beyond a doubt - whereas , the specification of Mr. Hall's patent is dated June 18 , following . But to prove the invention was original in my mind , I will ...
Page 24
... reduction of strength by cutting out the two cylindrical holes ; but the actual effective strain was 6341 . that the weakening effect is in fact 9290- 6341 = 2949 . So 2. The strengthening effect of the friction is 6341-5662 =
... reduction of strength by cutting out the two cylindrical holes ; but the actual effective strain was 6341 . that the weakening effect is in fact 9290- 6341 = 2949 . So 2. The strengthening effect of the friction is 6341-5662 =
Page 30
... fact on iron vessels , where the induced magnetism by the earth's influ- ence must be so great , as to occasion much disturbance of the needle , and adverted to the correction provided for it by Professor Barlow's compensating plate ...
... fact on iron vessels , where the induced magnetism by the earth's influ- ence must be so great , as to occasion much disturbance of the needle , and adverted to the correction provided for it by Professor Barlow's compensating plate ...
Page 31
... fact attempted to be foisted upon the public , that the Rainbow iron steamer , is the fastest vessel afloat . I have now commanded for three seasons an oak built steamer , in the Thames , built and equip- ped in London , of 100 horses ...
... fact attempted to be foisted upon the public , that the Rainbow iron steamer , is the fastest vessel afloat . I have now commanded for three seasons an oak built steamer , in the Thames , built and equip- ped in London , of 100 horses ...
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Common terms and phrases
acid angle apparatus appears applied April Aquarius Baddeley balloon bars Blast boiler British Queen Bude light carbonic carbonic acid carriage coal cock coke colour common construction copper crank cylinder diameter effect employed engine experiments explosion feet fire fluid force Franklin Institute friction furnace Galignani gallons glass heat Hot Blast improvements inches inches of mercury invention iron length letter lever litharge Liverpool locomotive London LONDON FIRE BRIGADE machine machinery Magazine manufacture means Mechanics ment mercury Messrs metal method mode motion nearly NOTES AND NOTICES observed obtained paper passed patent pipe piston placed plate present pressure produced propelling Prussian blue pump purpose quantity railway render screw side six months specific gravity steam steam-engine steam-vessels steamers surface tained temperature tion tons tube turpentine valve varnish vessel vitrification W. A. Robertson weight wheel whole wire zinc
Popular passages
Page 421 - As for the likeness of the living creatures, their appearance was like burning coals of fire, and like the appearance of lamps; it went up and down among the living creatures; and the fire was bright, and out of the fire went forth lightning. And the living creatures ran and returned as the appearance of a flash of lightning.
Page 441 - It can engrave a seal, and crush masses of obdurate metal before it — draw out, without breaking, a thread as fine as gossamer, and lift a ship of war like a bauble in. the air. It can embroider muslin and forge anchors — cut steel into ribands, and impel loaded vessels against the fury of the winds and waves.
Page 380 - Majesty is hereby authorised and empowered, if he shall think fit, to grant new letters patent for the said invention for a term not exceeding seven years after the expiration of the first term , any law , custom , or usage to the contrary...
Page 381 - Majesty is hereby authorized and empowered, if He shall think fit, to grant new Letters Patent for the said Invention for a Term not exceeding Seven Years after the Expiration of the first Term...
Page 432 - Smith, with reference to the selection of stone for building the new Houses of Parliament...
Page 445 - The velocity of this wave in channels of uniform depth is independent of the breadth of the fluid, and equal to the velocity acquired by a heavy body falling freely by gravity through a height equal to half the depth of the fluid, reckoned from the top of the wave to the bottom of the channel.
Page 146 - Blackfriars, for improvements in railroad and other carriages, in wheels for such carriages, and in roads and ways on which they are to travel.
Page 255 - With reference to the second branch, viz. the secular and periodical variations, it is observed that — "The progressive and periodical being mixed up with the transitory changes, it is impossible to separate them so as to obtain a correct knowledge and analysis of the former, without taking express account of and eliminating the latter...
Page 8 - ... between the elevations of temperature, and the diminutions of tenacity, constantly increase until we reach 932°, at which it is 2.97, and that from this point the ratio of diminution decreases to the limits of our range of trials, 1317°, where it is 2,14.
Page 164 - It appears, therefore, that this discovery may be turned to some practical account. It may be taken advantage of in procuring casts from various metals, as above alluded to ; for instance, a copper die may be formed from a cast of a coin or medal, in silver, type metal, or lead, &c., which may be employed in striking impressions in soft metals.