. Canadian foundryman (1918). NO 1- RIGHT SIDE SHOWS HOW LATHE BED, BEDDED IN FLOOR. LEFT SIDE SHOWSSAME JOB. CHEEKED OFF WITH WOODEN FLASK. and medium work. It is the purpose ofthis article to demonstrate how the flask-hinge can be utilized to advantage onmoderately heavy work. Take for in-stance the bed of an iron lathe. Untilvery recent years it was a common sightto see the smallest-sized patterns of this shell orders makes it profitable and ad-visable to adopt the best design of flaskwhich can be devised, and the hinsreoffers advantages which are not to befound in the ordinary flask. To th
. Canadian foundryman (1918). NO 1- RIGHT SIDE SHOWS HOW LATHE BED, BEDDED IN FLOOR. LEFT SIDE SHOWSSAME JOB. CHEEKED OFF WITH WOODEN FLASK. and medium work. It is the purpose ofthis article to demonstrate how the flask-hinge can be utilized to advantage onmoderately heavy work. Take for in-stance the bed of an iron lathe. Untilvery recent years it was a common sightto see the smallest-sized patterns of this shell orders makes it profitable and ad-visable to adopt the best design of flaskwhich can be devised, and the hinsreoffers advantages which are not to befound in the ordinary flask. To the rightof sketch, Fig. 1 is shown view ofpattern bedded in the foundry floor with rods supporting overhanging sand; someof these rods are bedded in as the ram-ming proceeds and some are driven inafterwards. The inside shows anchorbedded into green sand core. If thepattern is solid it is done in the sameway, with the exception that the core rajnsiEr^1. FIG. 2—END VIEW OF LATHE BEDMOULDED IN HINGE FLASH. fcfttffcft FIG. 3—TOP VIEW SECTION OFCHEEK. is rammed in a separate core box andlifted into the mold. The pattern ofcourse has to be parted at the bottomso as to permit the bottom flange to bedrawn in and the vs lifted the left of sketch is shown how thesame pattern may be cheeked off in awooden flask, wooden chucks being nail-ed to inside of flask. Iron chucks fast-ened together may be bolted to inside ofcheek, but will have to be unbolted eachtime in order to shake the mold 2 shows end view, and Fig. 3 showstop view of the same pattern molded inflask with hinged cheek, and very littleexplanation will be required. The dragis rammed up on the bottom board thesame as usual and the pattern beddedin. The cheek is put on in sections andclamped together as shown in Fig. 3,after which it is rammed up in the or-dinary way. No anchor is required andno parting is cut on the bottom cope which is provided w
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Keywords: ., bookcentury1900, bookdecade1910, booksubjec, booksubjectfoundries
