are formed to wash out the areraised. Secured to the ends are screw pins, which pass banks of the canal. As the boat advances, the discharged joint, the diameter may be adapted to pipes and thimbles through the cover and receive winged nuts. Lateral dis- water fills the space just vacated by the… … the outer part of the keeper and drops behind the edge, thus keeping the door closed. The inner part of the keeper is furnished with a slot which is formed with a rack which, in placed on, and the uuts screwed down. When the box is to connection with the jaws, pinions, cog wheels, and ratchet This…
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