Society of Glass Technology · [Sheffield] · leaf 584
C,so as to allow of rotation without rocking, the rotation of the sleeve, C, being obtained by the worm, 8, and the gear, 7. An annulartop plate, 10, attached to the bed covers and protects this wormgearing, and having its edges, 11 and 12, turned up forms a panfor collecting water, which is… … :i-Jl
Glass
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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