Five Hundred and Seven Mechanical Movements: Embracing All Those which are Most Important in Dynamics, Hydraulics, Hydrostatics, Pneumatics, Steam Engines, Mill and Other Gearing, Presses, Horology, and Miscellaneous Machinery, and Including Many Movements Never Before Published, and Several which Have Only Recently Come Into Use |
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While fascinating, it should be noted that a large portion of the motions listed here are not mechanically sound. They either will not work as described, with the effectiveness claimed, or function at all.
This is not to say that every device in this book is flawed, but that any device in this book that employs gears should be scrutinized for proper motion before believing it will work - the author seems to often forget that CW gears connect into CCW gears, and vice versa. Other times, the motion is sound, but they expect the system to generate far more, or multiple to a force that it is not capable of achieving. There are also a few times where the system in question will behave as described, but simpler versions exist and perform just as well.
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This is a must for study by budding mechanical engineers.
Shows an inherent weakness of Google ebooks. The pictures are on the even numbered pages with the descriptions on the following odd pages. For a real book, this is an effective layout. For ebooks, it is wickedly difficult to navigate. Give us a two-page layout, Google.
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Common terms and phrases
acts alternately arranged attached axis band belt bevel-gear bottom BROWN & SEWARD buckets capstan carrying connected connecting-rod continuous rotary motion crank cross-head curved cylinder disk drives drum eccentric epicyclic train escape-wheel escapement fixed force frame friction gasometer gear gravity escapement groove guides hammer hollow shaft horizontal impulse intermittent rotary motion lever lever escapement lifted loose machines mangle-wheel means modification motion is given motion is imparted move movement notch obtained oscillating pallets parallel motion parallel ruler passes patent pawl pendulum pinion pinion-shaft pipe piston piston-rod pivoted presses pressure produce pulley pump rack raised ratchet ratchet-wheel reciprocating rectilinear motion revolution revolves roller rope rotary engine rotation screw secured shown side slide slot speed spindle spiral spring spur-gear stationary steam engine stop strikes stud tappet teeth tion toothed transmitting traverse treadle tube turns universal joint upright valve velocity vertical vibrating weight wheel worm wrist
Popular passages
Page i - Engines, Mill and other Gearing, Presses, Horology, and Miscellaneous Machinery ; and including many movements never before published, and several of which have only recently come into use.
Page 107 - This method of passing a boat from one shore of a river to the other is common on the Rhine and elsewhere, and is effected by the action of the stream on the rudder, which carries the boat across the stream in the arc of a circle, the center of which is the anchor which holds the boat from floating down the stream.
Page 107 - Archimedes's screw to raising water, the supply stream being the motive power. The oblique shaft of the wheel has extending through it a spiral passage, the lower end of which is immersed in water, and the stream, acting upon the wheel at its lower end, produces its revolution, by which the water is conveyed upward continuously through the spiral passage and discharged at the top. /\<\/\. Montgolfier's hydraulic ram. Small fall | of water made to throw a jet to a great height or furnish a supply...
Page 109 - Revolution of drum causes sliding pistons с, с, to move in and out, in obedience to form of cam. Water enters and is removed from the chamber through ports L and M ; the directions are indicated by arrows. Cam is so placed that each piston is, in succession, forced back to its seat when opposite E, and at same time other piston is forced fully against inner side of chamber, thus driving lx;fore it water already there into exit-pipe H, and drawing after it, through suction-pipe F, the stream of...
Page 115 - Wiggin's steam trap for shutting in steam, but providing for the escape of water from steam coils and radiators. It consists of a box, connected at A with the end of the coil or the waste-pipe, having an outlet at B and furnished with a hollow valve D, the bottom of which is composed of a flexible diaphragm. Valve is filled with liquid, and hermetically sealed, and its diaphragm rests upon a bridge over the outlet-pipe. The presence of steam in the outer box so heats the water in valve that the diaphragm...
Page 79 - P is a pulley fixed to the great wheel of the going part, and roughened, to prevent a rope or chain hung over it from slipping. A similar pulley rides on another arbor, p, which may be the arbor of the great wheel of the striking part, and attached by a ratchet and click to that wheel, or to clock-frame, if there is no striking part.
Page 99 - Upper or drawing edge of blade and back of movable legs should intersect center of joint. Geometrical diagram indicates mode of setting instrument, legs forming it may form unequal angles with blade. At either end of dotted line crossing central, a pin is inserted vertically for instrument to work against. Supposing it to be inconvenient to produce the convergent lines until they intersect, even temporarily, for the purpose of setting the instrument as shown, a corresponding convergence may be found...
Page 121 - B, be made to gear with the wheel, D, which like the wheel, A, is concentric with the frame, we have an epicyclic train of which the wheels at both extremities are concentric with the frame. In this train we may either communicate the driving motion to the arm and one extreme wheel, in order to produce an aggregate rotation of the other extreme wheel, or motion may be given to the two extreme wheels, A and D, of the train, and the aggregate motion will thus be communicated to the arm.
Page 117 - The cable or rope wound on the barrel of the capstan is hauled in by turning the capstan on its axis by means of hand-spikes or bars inserted into holes in the head. The capstan is prevented from turning back by a pawl attached to its lower part and working in a circular ratchet on the base. 492. Boat-detaching hook (Brown & Level's). The upright standard is secured to the boat, and the tongue hinged to its upper end enters an eye in the level which works on a fulcrum at the middle of the standard....
Page 63 - Arranged as shown, if we trace the lines of a plan with the point, B, the pencil will reproduce it double the size. By shifting the slide attached to the fixed point, C, and the slide carrying the pencil along their respective arms, the proportion to which the plan is traced will be varied.
Bibliographic information
| Title | Five Hundred and Seven Mechanical Movements: Embracing All Those which are Most Important in Dynamics, Hydraulics, Hydrostatics, Pneumatics, Steam Engines, Mill and Other Gearing, Presses, Horology, and Miscellaneous Machinery, and Including Many Movements Never Before Published, and Several ... |
| Author | Henry T. Brown |
| Edition | 18 |
| Publisher | Virtue & Yorston, 1868 |
| Original from | the University of Wisconsin - Madison |
| Digitized | Sep 11, 2007 |
| Length | 122 pages |
| Export Citation | BiBTeX EndNote RefMan |