w this op- their seats by regricding, the steam soon cuts in'o the proper point, a slight pull with the little finger tical deception is produced, let them tollow us tora them deep grooves and chanrels. moment:— tendivg this operation, in ordinary globe valves is so great thot it is generally… … the cubinet is empty, This belie! is caused by the screw thread of the bub roger, irequently involving — mirrors being placed at the proper angle, by which the necessity of discounecting the valve from the the sides of the cabinet are reflecte forward, and ap- pear, asin tae dotted lines, to be as…
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