A Handbook of Applied MechanicsCollins, 1874 - 208 σελίδες |
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Σελίδα 152
... tooth at each swing of the pen- dulum . The tooth of the wheel presses upon the pallet , and each pallet is in its turn engaged with the wheel , and thus the escapement of one tooth at a time is effected . F is a forked piece , through ...
... tooth at each swing of the pen- dulum . The tooth of the wheel presses upon the pallet , and each pallet is in its turn engaged with the wheel , and thus the escapement of one tooth at a time is effected . F is a forked piece , through ...
Σελίδα 153
... tooth falls on to a second projecting piece , and communicates to it motion in the contrary direction . 99. The ... tooth to escape under it . Suppose , as the wheel round , the tooth a presses upon the pallet v , it causes the Fig . 58 ...
... tooth falls on to a second projecting piece , and communicates to it motion in the contrary direction . 99. The ... tooth to escape under it . Suppose , as the wheel round , the tooth a presses upon the pallet v , it causes the Fig . 58 ...
Σελίδα 154
... tooth c escapes . As soon as c escapes , the next tooth to a is pressing on the other pallet , and the same movements are continually repeated . By this means the revolution of the crown wheel keeps up or sustains the oscillations of ...
... tooth c escapes . As soon as c escapes , the next tooth to a is pressing on the other pallet , and the same movements are continually repeated . By this means the revolution of the crown wheel keeps up or sustains the oscillations of ...
Σελίδα 170
... tooth only of each wheel shall act upon its neighbour as it passes a particular point . Thus , when the first wheel B1 has gone round once , it moves one tooth of the next wheel B2 , so that B1 must move round ten times before it moves ...
... tooth only of each wheel shall act upon its neighbour as it passes a particular point . Thus , when the first wheel B1 has gone round once , it moves one tooth of the next wheel B2 , so that B1 must move round ten times before it moves ...
Σελίδα 171
... and the first wheel c ( B , ) , every time S ' is reciprocated by the arm V. The paul K is compelled to fall into one tooth at a time by the spring a . V is a lever with a set screw at N ; the string cord or bar is attached at.
... and the first wheel c ( B , ) , every time S ' is reciprocated by the arm V. The paul K is compelled to fall into one tooth at a time by the spring a . V is a lever with a set screw at N ; the string cord or bar is attached at.
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action angle angular velocity applied arms axis bar iron barrel beam blast blast furnace blistered steel boiler bottom carbon cast iron centre chain chisel column compression consists cool copper cord crane cylinder depth diameter direction elasticity employed engine equal feet fibres figure fixed flanges fluid fly wheel force friction fulcrum furnace girder give greater hammer handle heat hence holes horizontal hornbeam length lever lifted load metal minute motion mould moves passes piece pig iron pinion pipe piston placed planing machine plates plunger pounds pressure puddling puddling furnace pulley pump resist revolving rivets roller round screw shaft shape side slide rest solid specific gravity speed spur wheel square inch steam steel steelyard strain strength suppose surface teak tie rods timber tons tool tooth tube valve velocity vertical water wheel weight wire wood wrought iron
Δημοφιλή αποσπάσματα
Σελίδα 110 - Upon the same base, and on the same side of it, there cannot be two triangles that have their sides which are terminated in one extremity of' the base, equal to one another, and likewise those which are terminated in the other extremity.
Σελίδα 208 - COLLINS' SERIES OF FIRST-CLASS SCHOOL ATLASES, Carefully Constructed and Engraved from the best and latest Authorities, and Beautifully Printed in Colours, on Superfine Cream Wove Paper. MODERN GEOGRAPHY— Crown Series.
Σελίδα 107 - ... of the friction is, in every case, wholly independent of the extent of the surfaces of contact ; so that the force with which two surfaces are pressed together being the same, their friction is the same, whatever may be the extent of their surfaces of contact.
Σελίδα 45 - In some establishments the two ends of the roller are moulded in loam, over the chill, to secure concentricity of roller and coupling ; but this can be quite as safely arrived at by fitting the ears and pins of the boxes well to the chill. The chill is the important part in this mould : it ought to be at least three times as heavy as the roller which is to be cast in it, and provided with wrought-iron hoops to prevent its falling to pieces, for it will certainly crack if not made of very strong cast...