The Mechanic's Magazine, Museum, Register, Journal and Gazette, Volume 31Robertson, 1839 |
From inside the book
Results 1-5 of 72
Page 8
... angles of elevation A ' , as seen from A , B , C ; were 67 ° . . 10 ' , 68 ° .. 15 ′ , and 52 ° .. 18 ′ and those of B ' as seen from the same points were 72 ° . . 18 ' , 78 ° . . 15 ' , and 70 ° .. 10 ' , and finally , those of C ...
... angles of elevation A ' , as seen from A , B , C ; were 67 ° . . 10 ' , 68 ° .. 15 ′ , and 52 ° .. 18 ′ and those of B ' as seen from the same points were 72 ° . . 18 ' , 78 ° . . 15 ' , and 70 ° .. 10 ' , and finally , those of C ...
Page 11
... angle of about 45 de- grees , and presenting , therefore , a bevel , like the cutting edge of a common mortising chisel . In a few instances , particularly in experi- ments on bars as they came from the shears , the fracture was ...
... angle of about 45 de- grees , and presenting , therefore , a bevel , like the cutting edge of a common mortising chisel . In a few instances , particularly in experi- ments on bars as they came from the shears , the fracture was ...
Page 18
... angles , or , what is perhaps better , oppo- site to each other . The party using this method of conveyance occupies the hin- der seat , and by turning round the cranks with his hands , drives the car- riage forward with a speed ...
... angles , or , what is perhaps better , oppo- site to each other . The party using this method of conveyance occupies the hin- der seat , and by turning round the cranks with his hands , drives the car- riage forward with a speed ...
Page 22
... angles should reach half way tween the sides of the wheel ; for in that case the direct passage of the water through the wheel would be completely impeded , by which it would be forced into a tortuous and circuitous channel , so that ...
... angles should reach half way tween the sides of the wheel ; for in that case the direct passage of the water through the wheel would be completely impeded , by which it would be forced into a tortuous and circuitous channel , so that ...
Page 26
... angles to each other , and both passing over the centre of the swelled part , at b will be 1 2 3 5 10 8 found in the accompanying table . The or- dinates on the inside or concave part of the plate , commence fig . 1 from the centre of ...
... angles to each other , and both passing over the centre of the swelled part , at b will be 1 2 3 5 10 8 found in the accompanying table . The or- dinates on the inside or concave part of the plate , commence fig . 1 from the centre of ...
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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.