

MU1I1M OKAWIMi \M> 1' 



Occasionally a <-ns.s k, v is tiu.-d in I,, turn, tin- llangCS, 



>unk half int.. raeli. fr the purpose of cliinn 

 shearing :i< ti<>n on the l>olts. 



EXK! Cnni>lin<i. |)r;iu the elexatimi and 



uphill >h"\vn ill ti^'. lM : al.-o an elevjiti.m i 

 in tin- direction <>f tin- arrow. Scale :J inches to a 



Tin- full., wing table gives the dimensions of a fr\v 

 couplings taken fnun a* tual practice. 



i '<>nj>/ in,,*. 



All the above iliinn. 



1 A i i .. :-i _'t. -Select one of the couiilin^s from the alo\e table, 

 ami make the necessary working drawings for it to a ^ 



scale. 



Th rast iron flange coupling is shown in ti.::. 'j:. In tin- 

 kind of coupling a cast-iron centre or bos* j,n.\ id.-d with a 

 flange is secured to the end of each shaft by a sunk key dn\ n 

 from th<- face of the flange. These flanges are tl-n . onn. . t. d 

 1'V bolts and nuts JLS in the marine coupling 



To ensure the shafts iH'ing in line the end of 

 hf llan.i^' of the othT. 



In order that the face of i-aeh llan^e may lx- -\artly j. i 

 iM-ndicular to the axis of the shaft they should be ' fa-d in 

 the lathe, after being keyed on to the shaft. 



It 'li -.,!ij,liii-j is in an exposed position, when' 

 and Ixjlt-heads would IKJ liable to catch th< i km -n 



r an idle driving band which might come in the way. ih- 

 flanges should be made thicker, and be provided with recesses 

 for the nuts and bolt-heads. 



