Canadian Machinery . otractor is used to ensure ac-curacy. It will be readily seen that this planwould not be adopted in an actual ma-chine shop for the production of suchpieces, but by arranging the steps inthis manner the students get familiarwith the use of the various tools, at thesame time deriving considerable machineshop experience. No poor work is al-lowed to pass. For example, suppose astudent is rather careless in the filingoperation. Does he get away with it?Not much. He must start all over againand produce a block that is correct inevery detail. Making An End Mill We could go on in
Canadian Machinery . otractor is used to ensure ac-curacy. It will be readily seen that this planwould not be adopted in an actual ma-chine shop for the production of suchpieces, but by arranging the steps inthis manner the students get familiarwith the use of the various tools, at thesame time deriving considerable machineshop experience. No poor work is al-lowed to pass. For example, suppose astudent is rather careless in the filingoperation. Does he get away with it?Not much. He must start all over againand produce a block that is correct inevery detail. Making An End Mill We could go on indefinitely, quotingexamples of work done, but for thepurposes of this article, will take uponly one other job in detail. The sketchshown at Fig. 4 illustrates, in reducedform, the style of blue print used inthe making of a 1 spiral end mill. Aswill be noted, all instructions are con-tained on the blueprint. The studentcan, by this method, go right throughthe job, feeling confident he is pursu-ing the right tactics. /. KIC. r. LOWER VIKW: SHOWING A VARIED ASSORTMENT OF WORK 6-UPPER VIKW: A MISlELLArEOUS GROlP OK SMALL TOOLS. SOCKETS, DIES, AS MADE BY THE HOYS 38 Kxiimplo f Kinished Work To illustrate the varioty of work ac-complished, let us refer to Fig. 5. Hereare shown several articles, which havebeen completcii by the students, some ofwhich are what is termed outside outside work we mean work com-pleted for some outside firm. Manyconcerns take advantage of this chance,and send in work to be finished, pay-ing the school for the same. In thisway the school is partially self support-ing. The chuck shown is only one ofmany that have been completed by thestudents, and the writer inspected thesame and found it to be excellent work-manship. One would hardly believe that such ac-curate work could be done by boys. Thetall casting; to the ripht of the photo-Kraph is part of the column for thedrill press mentioned earlier in the arti-cle. The cutting of gear teet
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Keywords: ., bookcentury1900, bookdecade1910, bookidcanadianmachiner2502torou
