Canadian foundryman (1921) . CORE ARBOR FOR CROOKED PIPE. at any convenient time. Parting sandwill now be put on and the cope ram-med up and lifted off. After removingthe half pattern and finishing the cope,the green sand core will have to be re-moved in order to draw the bottom halfof the pattern. The rest of the workwill be straight ahead molding. The arbor as will be seen is an ordin-ary fingered arbor inside of the this it is flat and has bevelededges so that it can be drawn from themold and replaced in the exact posi-tion without damage to the mold. Itwill also be noticed t
Canadian foundryman (1921) . CORE ARBOR FOR CROOKED PIPE. at any convenient time. Parting sandwill now be put on and the cope ram-med up and lifted off. After removingthe half pattern and finishing the cope,the green sand core will have to be re-moved in order to draw the bottom halfof the pattern. The rest of the workwill be straight ahead molding. The arbor as will be seen is an ordin-ary fingered arbor inside of the this it is flat and has bevelededges so that it can be drawn from themold and replaced in the exact posi-tion without damage to the mold. Itwill also be noticed that at one end itprojects to one side in order to bring NEW PATENT SAND MIXING MA-CHINE A new sand mixing machine entirely diff-erent from anything heretofore put on theCanadian market has been recently broughtout by Alfred Herbert Limited of Coventry,England. This machine while new inCanada is the culmination of several ideasin sand mixing in this companys foundry. CENTRIFUGAL SAND MIXER. in England. The original object in manu-facturing the machine was to get properlymixed sand for their own work, and afterarriving at the present state of perfection itwas decided to put it on the market. The machine will deal with sand at therate of about 7cwts. per minute, or as muchas two men can shovel in. The action of disintegrating and aeratingsand by this method can be seen from theline drawings here shown. Four internal metal cages, revolving inreverse directions to each other, cause thesand, when thrown into the hopper, to beflung in an outward direction. The sand upon striking the bars of thefirst cage is flung tangentially on to the barsof the remaining cages, consequently break-ing up and thoroughly mixing the sand. The machine is not built in the roughgood enough for the foundry way too fre-quently found to be the case, but is con-structed for long life and durability. All thegearing is of steel case-hardened, and all thebearings are single-track b
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectfoundri, bookyear1921
