The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose

by Thomas Walter Barber

[797]. Fan jet, or spreader.

[798]. Blast tuyere.

[799]. Smith’s tuyere and water bosh.

[800]. Jet aspirator, for inducing a mixed current of air and water or steam.

[801]. Steam jet pump; the steam enters by the central jet and causes a vacuum, into which the water rises by the branch pipe.

[802]. Insufflator for steam and air blast; used also as a petroleum injector, &c.

[803] & [805]. Spray jets; the liquid rises by gravity at the small vertical nozzles, and is driven in a spray or mist by a cross blast of air from the horizontal jets.

[804]. Injector. The varieties of this contrivance are too numerous to specify. See Graham’s, Gifford’s, Hall’s, Hancock’s, and others in common use.

[806]. Plain or spreading jet. The eight vanes can be pushed into the jet of water to cut it up by moving the sliding ring.

[807]. Ventilating jet or aspirator, with several lateral openings for inducing a current.