Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 589
12 i 2 Fig. 1382. ^n … Fig. 1383. or grooves in the partition. The doors may be supported on wheels, and runon tracks at the floor-level; or the tracks may be above the doors, and thedoors suspended; or they may be supported by levers, and be moved parallelwithout rollers; all these appliances can be purchased. Figs.…
Mechanical drawing
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