292 



Popular Science Monthly 



rest in using a turning gauge, for truing 

 the wheel. 



The outer standard of the head stock 

 is made of stock 3 in. square, and the 

 inner standard of 2 by 3-in. wood. Holes 

 i}4: in. in diameter are bored through these 

 standards at the proper height for mounting 

 the spindle, which may be of ^-in. shafting 

 and about 12 in. long. Holes 3^ in. in 

 diameter are bored vertically from the top 

 of the standards to meet the i3^-in. hori- 

 zontal holes. These holes receive the 

 babbit metal which forms the bearings for 

 the spindle. Four pieces about 3 in. square 



metal. The can must be without soldered 

 seams or joints. A sharp V-shaped lip 

 should be formed in the rim of the can for 

 pouring the metal. A handle for the can 

 may be quickly made by twisting a wire 

 around it. It is well to heat the spindle 

 before pouring the metal, otherwise the 

 metal may be chilled and the casting 

 spoiled. 



The spindle may be heated by tilting the 

 lathe sidewise and placing a small oil-stove 

 or a large lamp below it. Having heated 

 the spindle, place the lathe in an upright 

 position and pour the melted babbit-metal 



END ELEVATION 

 FRONT ELEVATION OF LATHE TAIL STOCK REMOVED 



Side and end elevation views of the lathe without its attachments, giving general dimen- 

 sions for the larger pieces in its construction and showing the location of the parts 



are cut from a rather thin board, and ^-in. 

 holes are bored through their centers. 



It is best to bore the holes before cutting 

 out the blocks. These blocks are clamped 

 or lightly nailed to the faces of the stand- 

 ards so as to support the spindle in its true 

 central position and in line with the bed of 

 the lathe. The parts of the spindle that 

 lie within the standards should be wrapped 

 with a single thickness of paper, which may 

 be pasted to the spindle. Putty should be 

 used to close all cracks so that the melted 

 babbit-metal cannot escape. Old type 

 metal may be melted in an old baking 

 powder tin can, over an ordinary gas or 

 gasoline burner, and used for this babbit- 



in the vertical holes, filling them well to 

 their tops. When the metal has set, remove 

 the retaining blocks and remove the 

 spindle from the bearings and then take 

 off the bits of wrapping paper. Drill 

 3/8-in. holes down through the vertical 

 extensions of babbit- metal to form oil- 

 holes. The standards may be strengthened 

 by bolting pieces of i by 3-in. material 

 across their sides, above the bed. 



If the craftsman has access to a foundry, 

 a pattern may be made and a casting ob- 

 tained for the face-plate which may be 

 drilled to fit the spindle, to which it is 

 secured by a pin. Another method of 

 attaching the face-plate is to cut a screw 



