. American engineer and railroad journal . utter 004 In. to .5 Range of Bpindle speeds 9 to 340 Greatest distance between spindle and platen SO ins. Greatest distance between spindle and rotary platen 24 Ins. in i,i,„ , between center of spindle and neck 24 ins. Vertical feed of knee, automatic Diameter of spindle, main bearing 3% Ins. Diameter of spindle driver 20 in - Diameter or rotary table, inside oil pockets, -I ii I Idi 27% ins. _Sizc of hole in spindle I * B Taper No. 13 Jily. 1905. AMKKUAN KMilNEEK AND RAILIJOAD Mti |;\.\ 26? THREE DRUM SANDER. The Columbia three-drum, eight-roll S
. American engineer and railroad journal . utter 004 In. to .5 Range of Bpindle speeds 9 to 340 Greatest distance between spindle and platen SO ins. Greatest distance between spindle and rotary platen 24 Ins. in i,i,„ , between center of spindle and neck 24 ins. Vertical feed of knee, automatic Diameter of spindle, main bearing 3% Ins. Diameter of spindle driver 20 in - Diameter or rotary table, inside oil pockets, -I ii I Idi 27% ins. _Sizc of hole in spindle I * B Taper No. 13 Jily. 1905. AMKKUAN KMilNEEK AND RAILIJOAD Mti |;\.\ 26? THREE DRUM SANDER. The Columbia three-drum, eight-roll Sander, illustrated inthe accompanying engravings, is economical in operation, and has several important features which enable it to produce aline and accurate grade of work at a fast rate. The drumswhich carry the sandpaper are shown in cross-section in and are equipped with an automatic paper tightener of sim-ple construction, which keeps the paper at an even tension atall times. The machine is thus enabled to turn out a uniform. NECTI05AI \ \l\\ • .-. II ii mi- ni I Ml ii-i ii i i i u WORK E and high gra and the life ol the papei i eon Id ••raid;. i. h thai II i nol III i nary to ■, and All part. whii ii requiri nenl oi attention are out side of the. frame of the machine, and are easy of access, asmay be seen by reference to the .sectional view. Fig. :;. Theoscillators which furnish the ■ icating movement to the drums have a non-cramping arrangement of levers which keepstheir lateral movement in line with the axis of the shaft. Theoscillators follow the raisin;; and lowering of the cylindersfor the changing of the cut with perfeel freedom. Thetudinal, cross-sectional view of the oscillator, Fig. 1. shewsthe self-oiling boxes, the eccentric and strap, the three flexible
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
