. The universal assistant, and complete mechanic : containing over one million industrial facts, calculations, receipts, processes, trade secrets, rules, business forms, legal items, etc., in every occupation, from the household to the manufactory. - 1.:3S4), 4 i>art?; Avater, IJ) parts. For c; per a>-tids.—Sulphuric acid, 6i ; water. M p;?rtif; nitric add, 32 part^;muriatic acid, 1 part; mi.^. The aititle, free from gieaso, ia dipped inthe pickle for a second or two. ;IEXT OF LaPIPARIES CtTTTIXG pLATES.—1. Soft irOQ (very thin) with diamond du^-t in oil. 2. Pewter,
. The universal assistant, and complete mechanic : containing over one million industrial facts, calculations, receipts, processes, trade secrets, rules, business forms, legal items, etc., in every occupation, from the household to the manufactory. - 1.:3S4), 4 i>art?; Avater, IJ) parts. For c; per a>-tids.—Sulphuric acid, 6i ; water. M p;?rtif; nitric add, 32 part^;muriatic acid, 1 part; mi.^. The aititle, free from gieaso, ia dipped inthe pickle for a second or two. ;IEXT OF LaPIPARIES CtTTTIXG pLATES.—1. Soft irOQ (very thin) with diamond du^-t in oil. 2. Pewter, with coarse emeryand water. 3. Pewter, with fine emery and water. 4. Wood withsand and water. 5. Pewter witli ri) and ^rat^r. 6. Leather•with putty ]X)wder slightly wet PoLiSHixo DiAMoyps.—The plan in u-se £t all the large diamondcutters is simply a cast iron disc of go<^ metal, with a vertical spindlorun tlvough its centre, balanced, and turned, and faced true in alathe. The disc revolves at about 1000 revolutions per minute. Vtitha little diamond dust and oil, the stone is set in a small brass cup filledwith, common soft solder; it is then screwed un in tiia clamiw andapplied to the gkive till the facets is RECEIPTS FOR MACHTXISTS. ENGINEERS,MILLOTVXERS, BLACKSMITHS, LOCOMO-TIVE BUILDERS AND METAL TTORKERSOF EVERY KIND. DraTEUcnoKS to Exgikeers—Getting vp Steam.—Before light-ing tLe fire in the morning, raise your safety valve, brushing awayall the ashes and dust which may impair its free action, and il itleaks steam grind it on its seat with fine emery or grindstone with vibratory stems are safer tiian those with rigid stems, asthey are not so liable to bind by the lever and weight getting out oftrue. To guard agiainst loes by leakage and evaxwration, leave th9 MACHINISTS, ENGINEERS, AC, RECEIPTS. SIM «rater up to the third guage at night and beep it np to the secondgauge dorin,? working hours. Qean all athes and cindera from
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Keywords: ., bookcentury1800, bookdecade1870, booksubje, booksubjecttechnology
