Dividing (Workshop Practice) by Harold Hall

By Harold Hall

Dividing by way of Harold corridor explains how radial paintings on a metalworking lathe, akin to the slicing of drugs wheels or the drilling of holes on a suite radius, demands a style of accurately spacing the cuts. the rules underlying this element of engineering are defined intensive during this booklet.

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1mm)and three short(0025 mm). Tj ne uni twoul d normally be used on , the Iathes cross sli de with the top slide removed as seen in Photo 2. The positi on of the Iathe's saddle woul d be set and locked to give the line Iengths required and the cross sli de setto gi ve the depth ofcut. , . ,su.... y 1'. t. '' .. : .. y. t zy;. . Photo 3 showsi tbeingusedinconjunctionwiththe basicassemblyofthe dividinghead inthe previ ous chaptermounted on the lathe's bed. - . 30 50 11 S EC1 TIO N AA . -z . 7 76 --r 25 E) 20 15 76 I 1 1 .

GEAR RETAINING RING 4 GEARSPACER RING 10. CtJAFTITt 1 OFr DETENT ARM 8. LO CKING HA NDLE 13. A A g z,' -10 -. 3 C VS' 72, 5 , . 5t FCLE SILE)S 5 y -. 2,-. , g : g EA ' I---- J ----- -- -- 8 6. 2r ' nmCT114mm( )l AkETEf k2OFF HATEiIAL 20 ï 8 STEEL 070k20 t8 j ;25; 61 g j(. 2mm2OFF ------ - ----- ---- -- -- -- ,- . t -19$ ( l 8mm 8 ElllkElEl k IS1 ) SLOI T0 SLIIT SEIiS I JSEZ DETENT A RM SUPPO RT 2. 2mm 4 0FF Q C STUD 9. 1. L kKki U C/80qESmm 5,5mm CEE? 8 S1 2E )h! ) Fosl l'lo8. ANI ) FAFT LEFCTF,To SLI T koùhTlh: F 'EIIt JIFITkEI FTS kATEqIL bgmm j 8mm STEEL 070k22 CtJAFTI TY 1OFF S PIN DLE 12 .

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