| 单词 | toothed wheel |
| 例句 | His projects conduct electricity, engage motion with toothed wheels, react in concert with universal laws of physics. Dreaming in Cuban 1992-01-01T00:00:00Z He extends his fingers, interlocking them like the toothed wheels of a gear. The bestselling literary sensation you may struggle to name 2016-10-14T04:00:00Z Now the eggbeater lay in two pieces on the asphalt outside her home in Short Hills, N.J., its gears exposed, large toothed wheels nestled against smaller ones. Bedtime Math’s Founder Uses an Eggbeater for More Than Just Eggs 2015-05-22T04:00:00Z This screw, by proper intermediates, operates the toothed wheel g, Fig. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z Pitch Circle.—A section of the pitch surface of a toothed wheel by a plane perpendicular to its axis is a circle, and is called a pitch circle. An Introduction to Machine Drawing and Design 2012-03-06T03:00:25.777Z Pawl, pawl, n. a short bar lying against a toothed wheel to prevent a windlass, &c., from running back: a catch or click.—v.t. to stop by means of a pawl. Chambers's Twentieth Century Dictionary (part 3 of 4: N-R) 2012-01-30T03:00:13.887Z Around the third axle, which is one inch and one-third thick, is a larger toothed wheel projecting one foot from the axle in all directions, which has seventy-two teeth. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z Cog′-wheel, a toothed wheel, whose teeth fit into and move another. Chambers's Twentieth Century Dictionary (part 1 of 4: A-D) 2011-10-11T02:01:08.990Z This is fixed on the large toothed wheel g, indicated by the dotted lines in the same figure. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z The pitch circle is generally traced on the side of a toothed wheel, and is rather nearer the points of the teeth than the roots. An Introduction to Machine Drawing and Design 2012-03-06T03:00:25.777Z They were grooved and the grooves were lined with steel which was cogged to receive a toothed wheel. The City in the Clouds 2011-08-31T02:01:31.807Z At the height of a foot above its lower end, the axle has a toothed wheel, the diameter of which is twenty-two feet. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z One, of less importance, is that of toothed wheels; the other is that of general work, except of a very massive character. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 6 "Foraminifera" to "Fox, Edward" 2011-04-22T02:00:08.637Z The socket is provided with a ratchet or toothed wheel in which a catch or pawl engages. Modern Machine-Shop Practice, Volumes I and II 2012-03-23T02:00:33.140Z As shown by picture, these arms were raised and lowered by turning the large toothed wheel. Paper-Cutting Machines A Primer of Information about Paper and Card Trimmers, Hand-Lever Cutters, Power Cutters and Other Automatic Machines for Cutting Paper (Typographic Technical Series Part 1, No. 10) 2010-12-30T03:00:20.623Z All the variable speed gears at present made consist of toothed wheel mechanism either at the hub or crank-bracket, and nearly all are based on the same epicyclic train of toothed wheels. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" 2010-12-20T17:12:05.780Z At the other end of this axle is a toothed wheel. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z Such furnaces are used for hardening balls for bearings, cams, small toothed wheels and similar work, as well as for tempering springs, milling cutters and other kinds of cutting tools. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 2 "Anjar" to "Apollo" Books are prepared with raised geometrical diagrams; figures can be formed with bent wires on cushions, or on paper with a toothed wheel attached to one end of a pair of compasses. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" Among the convenient conventionalities are the indications of toothed wheels by their pitch lines only, of screws by parallel lines and by diagonal shade lines; and of rivets, bolts and studs by their centres only. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 7 "Drama" to "Dublin" At one speed there is no relative motion of the toothed wheels, the whole mechanism revolving as one solid piece; this is called the “normal” speed. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" 2010-12-20T17:12:05.780Z This rundle drum is turned by the toothed wheel of a lower axle, which is itself turned by a wheel whose buckets receive the impetus of water. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z The cloth was suspended in a vertical position, impaled on pins projecting from a baster plate, which moved intermittently under the needle by means of a toothed wheel. The Invention of the Sewing Machine It is possible to make toothed wheels that drive with perfect uniformity by using for the curve of the teeth involutes of circles. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" Better and apparently certain contacts can be obtained from platinum contact-pieces, brought together above the pendulum by means of a toothed wheel on the scape-wheel arbor. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" In the high gear position the epicyclic toothed wheels are to the extreme left position. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" 2010-12-20T17:12:05.780Z The wheel has sixty teeth, since it is necessary that the rundle drum should revolve twice while the toothed wheel revolves once. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z One patient perceives at the beginning of the attack a toothed wheel, in the middle of which there appears a human face making strange contortions; another sees a series of smiling landscapes. Religion & Sex Studies in the Pathology of Religious Development The smaller toothed wheel would be .73 of an inch in diameter over all. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" Last night the mill went to bits; the teeth broke off one of the toothed wheels, which has been considerably worn by a year’s use. Farthest North Being the Record of a Voyage of Exploration of the Ship 'Fram' 1893-1896 Vol. I It may be readily accepted that the use of toothed wheels to transmit power or turn it through an angle was widespread in all cultures several centuries before the beginning of our era. On the Origin of Clockwork, Perpetual Motion Devices, and the Compass Between this disc and the disc of the toothed wheel another drum is made, having likewise five rundles. De Re Metallica, Translated from the First Latin Edition of 1556 2011-11-16T03:00:21.977Z This contact is made by tripping a little lever by means of a toothed wheel of phosphor-bronze. Respiration Calorimeters for Studying the Respiratory Exchange and Energy Transformations of Man The rollers are fitted at one extremity with a handle for turning them round, and at the other with a ratchet and toothed wheel to prevent unwinding. Embroidery and Tapestry Weaving Then, looking to see that all was clear, Betty, who was at the helm, gave the word for Mollie to lower the toothed wheel, which engaging on the ice, would move the craft. The Outdoor Girls in a Winter Camp Glorious Days on Skates and Ice Boats These are fixed directly upon two axes, each one carrying a pallet P P' and a segment of a toothed wheel D D, which produces the effect of solidarity between them. Watch and Clock Escapements A Complete Study in Theory and Practice of the Lever, Cylinder and Chronometer Escapements, Together with a Brief Account of the Origin and Evolution of the Escapement in Horology It will be at once seen that, the toothed wheel, r, is reduced to its simplest expression, since it consists of two teeth only. Scientific American Supplement, No. 443, June 28, 1884 If a toothed wheel is mounted and slowly rotated, and a stiff card is held against the teeth of the wheel, a distinct tap is heard every time the card strikes the wheel. General Science In the receiver there is a similar toothed wheel carrying the hand of the indicating instrument, and actuated at the same moment as the transmitter. Scientific American Supplement, No. 620, November 19,1887 Methods of measurement by the toothed wheel of Fizeau confirm this result. Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work Professor Michelson has undertaken some new researches by a method which is a combination of the principle of the toothed wheel of Fizeau with the revolving mirror of Foucault. The New Physics and Its Evolution But the train may be reduced still further, and yet retain the essential character of completeness in the same sense, though composed actually of but two toothed wheels. Scientific American Supplement, No. 470, January 3, 1885 But it wearies me—until one is caught up in the machinery, a toothed wheel going round with the rest, one only bores oneself, and I may leave so soon. Don Orsino This series of operations leaves the instruments closed and the pawls home in the toothed wheel. Scientific American Supplement, No. 620, November 19,1887 In this a toothed wheel was made to play upon a piece of steel, the sparks thus caused being sufficient to give a moderate amount of illumination. The Story of a Piece of Coal What It Is, Whence It Comes, and Whither It Goes The second carriage likewise carries two drums equal in diameter to those of the toothed wheels. Scientific American Supplement, No. 514, November 7, 1885 It remains to notice the remarkable coincidence of the result of these experiments with that obtained by Cornu by the method of the "toothed wheel." Experimental Determination of the Velocity of Light Made at the U.S. Naval Academy, Annapolis One of the screws carries a light rope-wheel, by which it can be rotated, the motion being communicated to the second screw by the toothed wheels. Scientific American Supplement, No. 446, July 19, 1884 His circular cutter for toothed wheels was another of his handy inventions, which shortly came into general use. Industrial Biography, Iron Workers and Tool Makers The rigid connection between the cranks and the wheels does away with all the backlash, which is so unpleasant with chain or toothed wheel gearing. Scientific American Supplement, No. 447, July 26, 1884 The wheel, B, carries upon its axle an endless screw that sets in motion two toothed wheels that indicate the number of revolutions that it is making. Scientific American Supplement, No. 433, April 19, 1884 Blomgren, Galesburg, Ill.—The main feature in this invention is a telescopic tube, expanded or closed by a coil fitting within it, and worked by a toothed wheel. Scientific American, Volume 17, No. 26 December 28, 1867 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. The piston, by means of the flexible steel rack, causes the toothed wheel to revolve. Scientific American Supplement, No. 286, June 25, 1881 A winch, turned by two carabaos, sets a number of rasps in motion by means of toothed wheels and leather straps. The Former Philippines thru Foreign Eyes Papilio feronia, a Brazilian species capable of making "a clicking noise, similar to that produced by a toothed wheel passing under a spring catch." More Letters of Charles Darwin — Volume 2 The current also set in motion a toothed wheel of brass. Dick Hamilton's Airship, or, a Young Millionaire in the Clouds A toothed wheel driven by a larger wheel. Aeroplanes There was a grinding of gears as the toothed wheels meshed, and the big wooden propellers began to revolve. Dick Hamilton's Airship, or, a Young Millionaire in the Clouds |
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