English Mechanic and World of Science: With which are Incorporated "the Mechanic", "Scientific Opinion," and the "British and Foreign Mechanic.", Band 53E. J. Kibblewhite, 1891 |
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Ergebnisse 1-5 von 78
Seite xiii
... means of an inside turning - tool , small holes , and to bore straight . A half - used in the slide - rest . By this way of pro- round bit is the tool best suited for boring cedure , the bore of the shank is made true to through the ...
... means of an inside turning - tool , small holes , and to bore straight . A half - used in the slide - rest . By this way of pro- round bit is the tool best suited for boring cedure , the bore of the shank is made true to through the ...
Seite xiv
... means of an inside tool , the collar is bored out conical , and to suit the size of the spindle - neck . The other piece is treated by the same processes , and bored to suit the other neck of the spindle ; neither being bored quite to ...
... means of an inside tool , the collar is bored out conical , and to suit the size of the spindle - neck . The other piece is treated by the same processes , and bored to suit the other neck of the spindle ; neither being bored quite to ...
Seite 7
... means so much cirrhosis , Bright's disease , gout , rheumatism , insanity , & c . , disabling employment , taking the of the mouths of children . The Drink Bill for last pleasure out of the lives of families , and bread out year is ...
... means so much cirrhosis , Bright's disease , gout , rheumatism , insanity , & c . , disabling employment , taking the of the mouths of children . The Drink Bill for last pleasure out of the lives of families , and bread out year is ...
Seite 10
... means to completely decompose , or partially modify , the rays of light that constitute the image . No high degree ... means of photography . I wish to add that all such mechanisms are equally applicable in the reproduction of images at ...
... means to completely decompose , or partially modify , the rays of light that constitute the image . No high degree ... means of photography . I wish to add that all such mechanisms are equally applicable in the reproduction of images at ...
Seite 13
... means of hydrated oxide of lead cheaply , it is ecessary to obtain the oxide , and the following ethod has been devised by M. Villon . A solution f sodium nitrate is placed in a vat , divided into vo compartments by a diaphragm ; lead ...
... means of hydrated oxide of lead cheaply , it is ecessary to obtain the oxide , and the following ethod has been devised by M. Villon . A solution f sodium nitrate is placed in a vat , divided into vo compartments by a diaphragm ; lead ...
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Seite 61 - In this way a wash is made which forms a silicate if often wetted, and becomes, after a time, almost like stone. The four constituents mixed together, give the ground color, to which any pigment that can be used with lime is added. It is applied quite thickly to the wall, or other surface, let dry one day, and the next day frequently covered with water, which makes it waterproof. This wash can be...
Seite 55 - The total energy of any material system is a quantity which can neither be increased nor diminished by any action between the parts of the system, though it may be transformed into any of the forms of which energy is susceptible.
Seite 155 - For any discovery, invention, or newly-devised method for obviating or materially diminishing any risk to life, limb, or health, incidental to any industrial occupation, and not previously capable of being so obviated or diminished by any known and practically available means.
Seite 94 - He proposes to raise a vessel by means of metal balls, strong enough, when exhausted, to resist the pressure of the external air, but at the same time so thin as, in the same circumstances, to be lighter than their bulk of air.
Seite 47 - On the motion of the President, the thanks of the Society were given to Dr.
Seite 143 - To save silver, the ware can be first covered with a layer of tin ; 1 part cream of tartar is dissolved in 8 of boiling water, and one or more tin anodes are joined with the carbon pole of a Bunsen element. The zinc pole communicates with a well-cleaned piece of copper, and the battery is made to act till enough tin is deposited on the copper, when this is taken out and the ironware is put into its place. The ware thus covered with tin chemically pure and silvered, is much cheaper than any other...
Seite 46 - Office 8 inch gauge is by some regarded as the best gauge for ordinary observers to whom cost is not a primary object, as it has all the good features of the Glaisher and of the Snowdon patterns, and, being of copper, is very durable. In mountainous districts, where the rainfall is heavy, and the gauges can be examined only periodically, gauges capable of holding 40 or 60 inches of rain must be used.
Seite 103 - Edison's patent claimed, first, ' in an instrument for transmitting electric impulses by sound, a diaphragm or tympan of mica, substantially as set forth ; ' secondly, 'in an instrument for transmitting electric impulses by sound, the combination with a diaphragm or tympan of electric tension, regulators substantially as hereinbefore described, for varying the resistance in a closed circuit, substantially as set forth ; ' and, thirdly, he claimed the 'phonograph.
Seite 103 - The transposition was made on an insulator for that purpose, first on one side of the line, and then on the other.
Seite 22 - No packing is used to prevent upward leakage. All water which passes the screw when the tap is open enters the annular space E, and is drawn off into the bib through the eduction tube F, in which a current is induced by the velocity of the water...