Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry (1921)
Wright, Roydon Vincent, 1876- ed, Little, John G., joint ed, Augur, Robert C., joint ed · New York, N.Y., Simmons-Boardman Publishing Co · leaf 239
d as a ventilator, the mushroomtype of ventilator generally being used, although a cowlfitted to the top of the post is often used. In some designs,a slide is fitted in the post to permit regulation of the venti-lation below decks. Derrick or Boom Tables A derrick or boom table is used when more… … DERRICKS 233 mined by the number of booms required. The smaller sizesof boom tables are usually bracketed to the mast but whenthe space between hatches will permit a wide boom tableto be built around the mast it is, supported by stanchions,and sometimes is enclosed and used as a deck locker. An…
Hoisting machinery · Conveying machinery
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
