MISCELLANEOUS TOOLS AND METHODS OF WORK 39 



Seventh. Saw pieces No. 1 and ISTo. 2 apart and block-plane ends. 

 Eighth. Saw to the lines, chisel, and fit the pieces. 



Although the above is the method of laying out a typi- 

 cal joint, each problem will require special treatment and 

 here the student will be 

 guided by his instructor. 



24. Securing Parts. 

 Many articles made of 

 wood consist of several 

 pieces fastened together. 



When two pieces are 

 fitted together the sur- 

 faces of contact are called 

 a joint. There are many 

 kinds and shapes in join- 

 ery, and usually some 

 extra fastening is re- 

 quired to hold the pieces 

 together. These aids are 

 glue, nails, and screws ; 

 while o-n heavy construction still others, such as wedges, 

 pins, and dowels are used. The first three are com- 

 monly used in small work. 



Glue is of two kinds, fish and animal. Both are made 

 from refuse matter, — animal glue being manufactured 

 from such products as bone, horn, hoofs, and hide. 



Fig. 51. The Hand Screw 



