Register of Arts, and Journal of Patent Inventions, Volume 4Luke Herbert G. Herbert, 1827 - Industrial arts |
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Page 7
... rotatory motion when the carriages are not in a straight line : these and other moving parts are distinctly shewn in the annexed figure , which is upon a larger scale . uuuuu are 2 9 ff is the rotatory shaft ; g g. ARTS AND SCIENCES . 7.
... rotatory motion when the carriages are not in a straight line : these and other moving parts are distinctly shewn in the annexed figure , which is upon a larger scale . uuuuu are 2 9 ff is the rotatory shaft ; g g. ARTS AND SCIENCES . 7.
Page 10
... moving parts against each other - the reciprocation of the machinery , and the irregularity of the motion : we shall ... move without any visible impediment it is not that its original impetus is exhausted or spent , ( though the latter ...
... moving parts against each other - the reciprocation of the machinery , and the irregularity of the motion : we shall ... move without any visible impediment it is not that its original impetus is exhausted or spent , ( though the latter ...
Page 11
... moved from a to c , the piston is at its greatest speed , and travels nearly at the same velocity as the point a of the crank . But when moving from c to d , an equal piston of a revolution , the piston only moves a distance equal to gd ...
... moved from a to c , the piston is at its greatest speed , and travels nearly at the same velocity as the point a of the crank . But when moving from c to d , an equal piston of a revolution , the piston only moves a distance equal to gd ...
Page 14
... moved any given distance round its centre , that the piston , b , only moves half the distance of the piston , a ; and consequently , the areas being equal , and the distance but one half , only half the steam is expended . Hence it is ...
... moved any given distance round its centre , that the piston , b , only moves half the distance of the piston , a ; and consequently , the areas being equal , and the distance but one half , only half the steam is expended . Hence it is ...
Page 15
... moved through 5 , 6 , and 7 , 8 , whilst it rapidly passes the middle , and therefore , in that part , it is more worn than at any other . The last inconvenience we shall notice , though it is by no means the least , is , that the fly ...
... moved through 5 , 6 , and 7 , 8 , whilst it rapidly passes the middle , and therefore , in that part , it is more worn than at any other . The last inconvenience we shall notice , though it is by no means the least , is , that the fly ...
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Common terms and phrases
annulus aperture apparatus applied Arts atmosphere axis axle body boiler bolts bottom Brown's Gas carriage centre Cheapside circle circular cock communication condenser connected connecting rod construction contrivance copper crank cylinder described diagram diameter drawing effect elastic employed engraving equal feet fixed fluid fly wheel force forcing pump frame friction furnace groove heat hole horizontal improvements inches ingenious inserted invention iron Lectures lever liquid loco-motive London Mechanics loom machine machinery manner means metal method mode motion mould box move obtained operation pass patent piece pipe piston rod placed plate Power Loom present pressure produced pulley pump purpose quantity readers received reciprocating engines revolving roller rotatory round screw shaft shew shewn side Six months sliders sliding specific gravity spindle Steam Engine Street stuffing box sufficient surface temperature Toplis treadles tube turned upper valve vapour vertical vessel weight
Popular passages
Page 90 - Consumption is the sole end and purpose of all production; and the interest of the producer ought to be attended to only so far as it may be necessary for promoting that of the consumer.
Page 62 - ... furnace. The sides of the gulf before us, although composed of different strata of ancient lava, were perpendicular for about 400 feet, and rose from a wide horizontal ledge of solid black lava of irregular breadth, but extending completely round. Beneath this ledge the sides sloped gradually towards the burning lake, which was, as nearly as we could judge, 300 or 400 feet lower.
Page 62 - ... feet deep. The bottom was covered with lava, and the south-west and northern parts of it were one vast flood of burning matter, in a state of terrific ebullition, rolling to and fro its " fiery surge
Page 344 - ... to employ the expansive force of steam to press on the pistons, or whatever may be used instead of them, in the same manner as the pressure of the atmosphere is now employed in common...
Page 26 - ... the valves successively to give a circular motion to the wheel; the valves opening in the direction in which the weights are pressed, but not in the contrary. As the...
Page 441 - ... 3 is also moved backwards and forwards. The end of this sliding rod is fixed upon the reciprocating lever dc, of the leg de, at 4. When, therefore, the sliding rack is moved forwards in the direction 3, 2, 1, by the progressive motion of the engine...
Page 24 - ... the contrary. As the steam vessel moves round, it is supplied with steam from the boiler, and that which has performed its office may either be discharged by means of condensers, or into the open air. Sixthly, I intend, in some cases, to apply a degree of cold not capable of reducing the steam to water, but of contracting it considerably, so that the engines shall be worked by the alternate expansion and contraction of the steam. Lastly, instead of using water to render the piston or other parts...
Page 24 - In these steam-vessels are placed weights, so fitted to them as to fill up a part or portion of their channels, yet rendered capable of moving freely in them by the means hereinafter mentioned or specified. When the steam is admitted in these engines between these weights and the valves, it acts equally on both, so as to raise the weight...
Page 27 - I there described a steam wheel, moved by the force of steam acting in a circular channel against a valve on one side, and against a column of mercury or some other fluid metal on the other side.
Page 62 - The existence of these conical craters led us to conclude that the boiling caldron of lava before us did not form the focus of the volcano ; that this mass of melted lava was comparatively shallow ; and that the basin in which it was contained was separated, by a stratum of solid matter, from the great volcanic abyss, which constantly poured out its melted contents through these numerous craters into this upper reservoir.