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PAPERS. 



366 



by one end, th? otl^ cnri nf TT ^"'^^^ ""'^'^ P^"^'" ^. 



^^, that ^^'W^ir elnj'^^/"^^^ 



lating fcrew L. ^ "''^'' ""'^^ « "^^ets with the regu- 



-«.) Is an arm wjth a cl-^wr a*. *.i , 



other end is fixed by a iotrin tn /r '^^ /''''^'^ ^' ^he 

 Ja'-(9. andbythem^otiirof hr^r^r -''^"^^^^^^^ 



which carries a foall t ood^r f ^' ^^^^^"Ponan axis, 

 oppofiteend; th stakes into^ «" the 



dented with teeth, and fcre^vedfir^Iv •'7^''"^ ^^'^ ^"" 

 the carriage CCCC, and by mean of .^ ^".'"^^ °"" ^''^' °f 

 a motion communicated to it ' '^'' '^"^"^''S^^ ^^^^ 



y ^; Is a cJanip for faftenin^ one end nf tl . fii • , 

 pla^e or bed on which it is to be cur ''^' "' '^^ 



works b^Ttoh^^'r^firml';? ^^H '"' ^^^^^^^^ -^'' ^^-h 



which the fcrew Jpaffes aTat ^ ''.'f"'''^^' ^^^'^O'-^gh 



againft the upperL'Tof 'the climo r ^'f ''' ^'"^'^ ''^ 

 the other end of the file ;^^ L f ^' ,""^''" ^^"'^h clamp 



its place while it is cut tit-' h/^ '"^ ^''^^ ^""'7'^ 

 clamp or dog T. ^' ^^ ^^^ P'*^^"'*^ of the faid 



broader and longeVttn't if/lafgeft'fi^eTfir' 'l™^^'^^"^ 

 face of this bed of lead is fon3 ^'l'^'^ ^^^'i the upper 

 the different kinds of l4^SjriT e'l^ ^ ^ ^^ 



2, Two catches, which takes into the teeth^nffl t. 



wheel .t, to prevent a recoil of its motion ' '■'''^" 



3' 3' Is a bridge to fupport one end nf .1 « • 

 the ratch-wheel ^ i i ■• "ne end of the axis 4, of 



f, A ftud to fupport the other end nf th. • n 

 ratch-whecI, ^ °*^ ^"^ axis of the 



When the fiTe or files are laid in their nl. , 

 clnnemuft be resrulated to cut 111 ' r \ P'^^^' the ma- 

 VoL. I. ^ ^^^' '^'"^ of the due degree of 



"^ finenefs, 



-p 



