3 Jan.. 191 -.j 



F arm BlacksDiill/iii s 



SI 



cross beam can be found than by making two eye-bolts out of f in. 

 diameter iron for the purpose. Again, it is sometimes necessar\- to attach 

 a block and tackle to the roof for lifting heavy weights — the eve-bolt is 

 just the article required for the purpose. Where an underground tank is 

 on the farm the cover requires to be lifted ; if an eye-bolt made from ^ in. 

 diameter iron, with a round ring 

 attached to the eye, be connected 

 in the s;ur.e manner as previously 

 described it will l)e found to be 

 very con-venit^nt. 



To accomplish the forging con- 

 nected with Fig. 43 is a much 

 more difficult matter. The sketches 

 show' the various stages of con- 

 struction ; a is a piece of flat iron, 

 say 1 2 in. x % in., with grooves 

 formed in it with the fuller and 

 the beak of the anvil in such posi- 

 tion that the central portion will, 

 ■on being flattened out, be of the 

 necessarv length for the swingle - 

 tree. As the size will varv, 't 

 will l>e impossible to state the 

 length. 



After the fullering is done, each 

 end is rai.sed to a welding heat 

 and drawn down to a circular shape 

 like b (Fig. 43). In drawing out 

 work of this nature the iron is 

 roughly rounded wdth the hammer 

 iind afterwards swaged smooth and 

 to exact size. Illustrations of 

 swage and swage block appear::"d 

 in the September. 191 1. issue. 



The next operation is to flatten 

 ■out the central part to about ^ in. 

 thick at the middle section and 

 gradually taper it aw^ay to I in. 

 at the edges as illustrated at d. 

 The breadth is allowed to increase 

 to about 2 in., whilst flattening. 

 The mitre (c) is made with the 

 fuller and sett-hammer. 



When this is satisfactorily done 

 it is bent at the centre of the 

 flatjened portion, to fit the swingle- 

 tree, which is usually made semi- 

 circular : then scarf the round 

 ends like a link and weld up. 



To attach to the wood, drill a small hole through the flat part ; and. 

 after fitting tightly, either put a screw in each side, or bore a hole through 

 the wood and drive a piece of iron right through and slightlv rivet the ends 

 to prevent it dropping out. Another method of fastening 'is to forge the 



. Cutting- the 

 c. Collar con 

 weliliiis' heat. 



FORGING BOLTS. 



iidii for collar: b. Partly hent ; 

 ■ctl\ .shaped : d. Prejiaring- for the 



