Patents for inventions. Abridgments of specifications, Band 181859 |
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66 Printed 66 This invention action actuated alarum alloys apparatus applied armature arrangement attached axis battery pole cable carbon cells centre clock clockwork coating coil communication compass conductor conjoined series connected copper cylinder deflection deposited described and shown dial disc electric circuit electric current electric telegraphs electro-magnet electrode electrotype employed Encyclopædia Britannica Encyclopædia Metropolitana engine fixed fluid galvanic battery galvanometer glass gutta percha heat helices Improvements instrument invention consists Letters Patent lever line wire line-wire circuit local battery London Journal Newton's machine magnetic needle means Mechanics mercury metal method motion moveable nitric acid obtained passing permanent magnet piece piston placed plate platinum pointer position produced pulley purpose Repertory of Arts revolving ring rollers rotation screw shaft signal silver soft iron solution spring station suitable sulphate sulphuric acid surface telegraph wires transmitting tricity tube type wheel vessel voltaic zinc
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Seite 168 - ... is deflected to one side or the other, according to the direction in which the current is transmitted. A single wire has but small power on the needle; but Professor Schweiger invented the
Seite lxxxiii - JACOBI, at St Petersburg!), has also made a discovery which promises to be of little less importance to the arts. He has found a method — if we understand our informant rightly — of converting any line, however fine, engraved on copper, into a relief, by galvanic process. The Emperor of Russia has placed at the Professor's disposal, funds to enable him to perfect his discovery.
Seite xlvi - They give the diamagnetic the power of rotating the ray; and the law of this action on light is, that if a magnetic line of force be going from a north pole, or coming from a south pole, along the path of a polarized ray coming to the observer, it will rotate that ray to the right-hand ; or, that if such a line of force be coming from a north pole, or going from a south pole, it will rotate such a ray to the left-hand.
Seite xlviii - Canst thou lift up thy voice to the clouds, That abundance of waters may cover thee? Canst thou send lightnings, that they may go, And say unto thee, Here we are?
Seite lxxx - The copper plate is also covered with a coating of metallic copper, which is continually being deposited ; and so perfect is the sheet of copper thus formed, that being stripped off, it has the counterpart of every scratch of the plate on which it is deposited.
Seite 726 - He lodged specifications in 1831 for ' improvements in machinery for propelling vessels on water,' in 1837 for ' improvements in locomotive engines,' and in 1846 for ' certain improvements in obtaining motive power, and in applying it to propel carriages and vessels, and to the driving of machinery.
Seite 461 - Holborn, for an improved process for plating or coating lead, iron, or other metals with tin, nickel, or alumina, of which the following is the specification. " The .first part of our process...
Seite 21 - Engineer : for an improvement of mathematical and astronomical instruments, in order to render them more portable, accurate, easy, expeditious, and certain in their application to topographical and nautical surveying, the mensuration of terrestrial and celestial angles, and the direct distances of inaccessible objects at one station, by land or sea, without the usual modes of calculation ; also the natural sine and co-sine of such angles are precisely obtained to any eligible radius...
Seite 72 - The next part of the invention is a method of ornamenting surfaces of brass or copper, by first gilding them partially according to some pattern, and then washing them over with a solution of chloride of platina, which has no action on the gilt parts, but gives a dead black appearance to the rest of the surface, thus enhancing the brilliancy of the parts which are gilt.
Seite lxv - Mons, mentions, among other scientific facts, that " he had gilt in a complete manner two large silver medals, by bringing them, by means of a steel wire, into communication with the negative pole of a voltaic pile, and keeping them one after the other immersed in ammoniuret of gold newly made and well saturated."f EARLY OPINIONS CONCERNING ELECTRO-DECOMPOSITION.