Part 5 (1/2)
[Illustration: Fig 19 Wheel cutter in use]
A saw board, as shown in Fig 21 should be fastened to a table top with an iron clamp; or, a saw board made to fasten in a vise20 Details of a wheel cutter whichout the toy part, the coping saw should be held in a vertical position as shown in Fig 22, and in an up-and-downthe outline carefully Cut on the line Do not press hard on the saw for the blade is very thin and can very easily be broken, but it should last a long ti 21 Cla 22 CorrectSharp Corners--When cutting a sharp turn in the ith the coping saw, care should be taken not to twist the saw blade out of shape Upon reaching the sharp turn, continue the up-and-down ; turn the wood very slowly until you haveand follow the rest of the outline carefully
[Illustration: Fig 23 Re the Saw-Blade from Frame--To remove the saw-blade froainst the table top as shown in Fig 23 Pressing down on the handle will release the saw-blade When inserting the blade into the fra careful that the teeth of the saw-blade point toward the handle of the frame The bladethe side slots only when the end slots will not serve the purpose
50 Making Heavy Wheels--In turning heavier wheels that are to be used for coasters, kiddie cars, etc, the work is done with the head stock only, the wood being supported by the screw-center chuck or face plate
In turning the wheel the first step is the scraping cut as shown in Fig
24 This cut is properly ive a light scraping cut Care should be exercised not to allow the chisel to extend too deeply, otherwise the rain
After the desired circumference has been obtained the surface should be worked to the desired for the lathe rest, set at right angles with the bed or parallel with the face plate The illustration in Fig 26 shows the use of the dividers in ations in the wheel that is being turned The sanding should be done while the wheel is in the lathe Use first a fairly course grade of sand paper and afterwards a fine grade, No O or OO
51 Designs for Wheels--Suggestions for wooden toy wheels are shown in Fig 27 Those nu in design only No 8 and 9 are re-enforced with zinc and large iron washers No 10 shows a segment of an iron pipe fitted in the center of the wheel to prevent wearing away of material No 11 shows a spoke wheel The spokes areinto a hub that can easily be turned out on the lathe No 13 shoheel built in segments which is then cut out on the band saw to resemble a standard spoke wheel The rim is 1/8” steel, fastened to spokes with very s heavy wheels The scraping cut]
52 Cutting Wheels on Band-Saw--A circle of the required size wheel may be marked off on the ith a compass, then cut in the outline on the band-saw This method will leave square corners and will be more or less out of truth with the center of the wheel To true up and smooth the outside of the wheel the lathe attach 28 can be easily prepared This attachment consists of a block _A_ fastened to the lathe bed with a single bolt, and a stop _B_ fastened to the upper face of the block _A_ The carriage _C_ is a loose piece the same thickness as the stop _B_ and is provided with a dowel rod to fit the central hole in the wheel This dowel rod is so located that when the edge of the carriage _C_ is tight against the edge of the stop _D_, the distance from the center of the dowel rod to the face of the abrasive material on the disk, will be equal to the radius of the finished wheel
[Illustration: Fig 25 S the side of wheels]
The wood is cut out on the band saw a scant 1/16” over-size in diae _C_ which is held flat on block _A_ while the edge of the blank is brought in contact with the grinding disc face by pushi+ng the carriage forith the left hand while the blank is slowly revolved with the right This grinding is continued until the edges of stop _B_ and carriage _C_ will re a co process, the carriage should be rinding disc so that the wear on the abrasive26 Using dividers tothe edges of the blanks is also shown in Fig 28, as it looks when viewed fro description will suffice for this as the sa has been used It differs only in that block _A_ islevel
[Illustration: Fig 27 Many ways of28 Si discs may be made either of metal or wood Metal is preferable but a hardwood disc fastened to a metal face plate will answer very well There arematerial to the disc but the
The disc is coated with dressing by holding the stick against it as it revolves and the abrasive is applied before the dressing has set A pair of dividers or trammels is used to cut the abrasive material to the same diameter as the disc and it should be warhtly to the disc but is easily removed and replaced with freshHoles in Wheels--The center holes in wheels may be bored with bit and brace, but better results are obtained if the holes are bored in the lathe A drill chuck fitted to the live spindle and a drilling pad for the tail stock spindle will be required to do this job efficiently The tail stock is locked fast and the wheel to be drilled is placed against the drilling pad and fed up to the revolving bit by turning the tail spindle feed wheel This method will produce a cleaner hole and one that is square with the wheel face
CHAPTER V
OPERATION OF WOODWORKING MACHINES
54 I of what is the correct position to take at some of the principal machines such as the lathe, universal saw, jointer, and sander, is very i departed in toy e of use of29 The roughing cut]