File:Illustrated catalogue and general description of improved machine tools for working metal (1899) (14586813277).jpg

Identifier: illustratedcatal00sell (find matches)
Title: Illustrated catalogue and general description of improved machine tools for working metal
Year: 1899 (1890s)
Authors: Sellers, William, & co. (from old catalog)
Subjects: Machine-tools Machinery
Publisher: Philadephia, Levytype company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
ctric motors,we also build them with countershafts and cone pulleys when required ; but weprefer to belt directly to the moving upright rather than to drive through longshafts in the bed. The various motions are engaged or disengaged by a simple system ofclutches, which enables one at will to throw in any one of the feeds or of therapid traversing motions, and the whole machine is controlled by the operator,who stands on a convenient platform opposite the spindle. From this point hecan run the upright to any position on the bed he desires, and with the utmostnicety; he can raise or lower the saddle to bring the spindle to the proper eleva-tion; this motion being accomplished rapidly and with great accuracy. The greatlength of horizontal and vertical movements which is usual in such machines,renders this quick movement by power a necessity. These machines, besides the ordinary drilling-feed, are often provided with Wm. Sellers & Co., Incorporated, Philadelphia, Pa. 51 Plate No. 37.
Text Appearing After Image:
FLOOR-BORING MACHINE—Driven by Belt and Swing Frame. Minimum height of spindle above floor-plate, 14. Maximum height, 6ft. 2. Horizontal adjustment of upright on slide, 4 ft. 10. Spindle, 4 di-ameter, 30 stroke. Largest lift on cone pulle), 20 diameter for 3 belt. Feedsvariable by our improved friction arrangement up to ^j per turn of spindle.Driving pulley, 16 diameter, 4 belt. 75 revolutions per minute. Slotted fioor-plate and adjustable support for boring-bar, extra. 52 Wm. Sellers & Co., Incorporated, Philadelphia, Pa. Horizontal Floor= Boring Machines.—(Continued.) milling-feeds, both horizontal and vertical, so that they may be used to face offsurfaces, or do other milling work not usually covered by ordinary millingmachines. The feed in each case is regulated by our improved friction discs.The height of upright and length of bed can be readily made to suit all require-ments. Besides the machines illustrated in the accompanying plates, we are pre-pared to build larger si

Note About Images