HOW TO TAKE A LOCK TO PIECES. 47 



tolerable mechanic may rectify these extremes, by 

 filing, more or less, the part where the scear catches 

 the tumbler. The most accurate way to regulate the 

 pull of a trigger, as well as that of a cock, is by a 

 small stilliard, which will draw out and regulate those 

 of twenty guns to the same focus. 



The triggers are now kept well in their places, by 

 the constant pressure of little springs, and you must 

 therefore push them back before you can let in your 

 locks. 



In cleaning locks, the best places to put a little 

 oil are, 



1st. In front of the pan, immediately under the 

 neck of the hammer, from whence the oil will find its 

 way through to the wheel and spring : 



2d. On the pivot nail, or centre of the tumbler, on 

 which the whole of the works move : 



3d. On the lockplate, under the works, where a 

 feather may be inserted : 



4th. Where the scear catches the tumbler. 



TO TAKE A LOCK TO PIECES. 



IN the event of breaking or weakening a spring, 

 and therefore having to replace it with an extra one ; 

 or, in case the works of a lock should have become 

 damaged by rust and neglect, every sportsman should 

 be provided with a little spring-cramp, which may 

 be carried with his flint-case, and with which he may 

 himself take his locks to pieces, with as much safety 



