WIRE WINDING APPARATUS.
APPARATUS 91.
_127. Winder._ Fig. 68. In case you do not have any means of making a
smooth hole for the "bearings" of the winders of App. 93 and 94, you can
use a spool for the purpose. B is the end of a piece of board about 1
in. thick, 3 in. wide, and 6 in. long. The spool, A, is laid upon this,
a band of tin, T, being used to hold it down firmly upon the end of B.
Screws, S, hold T down. A stove-bolt axle (See App. 93) is shown, and by
using a nut, as explained, bolt magnets may be wound. By using the
handle of App. 92, this arrangement can be used to wind almost anything,
when used together with the attachment of App. 95.
[Illustration: Fig. 68.]
[Illustration: Fig. 69.]
APPARATUS 92.
_128. Crank for Winders, etc._ Fig. 69. This form of crank or handle
will be found easier to make than the one in which a wire is expanded in
the slot of a stove bolt, and it can be used for many purposes,
especially where dowels serve as axles. Wrap a little paper around the
end of the 1/4 in. dowel, D, and push it part way into the spool, A,
then put in a set-screw, S, to keep A from twisting upon D. The straight
end of the wire, H, should be put into a hole, B, and another set-screw
used to fasten it into the spool.
APPARATUS 93.
_129. Winder._ Fig. 70. For winding bolt magnets, this form of winder is
very useful. It consists of a "stove bolt," S B, 2 in. long (total
length) and 5/16 in. in diameter.
[Illustration: Fig. 70.]
130. Handle or Crank, H, is made of a stout wire, 4 in. long, bent at
the lower end as shown. H is fastened into the slot of S B. To do this
the end of H is hammered flat until it will just slip into the slot. It
may be soldered there, or be made to fit by expanding it so that it will
press out against the sides of the slot. To do this, place S B into a
hole in an anvil, or hold it in a vise, being careful not to injure the
thread. Place the flattened end of H in the slot, and strike it on top
so that it will expand and be pinched in the slot; but do not pound it
so hard that you split the bolt head. Three or four good center-punch
dents upon the wire over the slot will help to expand it.
131. The Framework is made of wood, the dimensions being shown in Fig.
70. A 5/16 hole should be made for S B, the thread of which will stick
through about 1/4 in. so that the winder-nut, W N, can be turned onto
it. W N should be on but 2 or 3 threads of S B. This will leave part of
it for the thread of the bolt magnet, and when this and S B meet in
center of W N they will bind against each other and hold the bolt tight.
The winder can be nailed or screwed at S to the edge of a table or held
in a vise.
APPARATUS 94.
[Illustration: Fig. 71.]
_132. Winder._ Fig. 71. This shows a winder that can be used for several
purposes by arranging different attachments. It will be first described
as shown in Fig. 71, where it is being used to wind a bolt magnet. The
principal dimensions are shown in the figure. It is made of 3/4 in. wood
about 3 in. wide, the two outer parts X and Z being nailed to the center
one, Y, which is to be held in a vise, or fastened to the edge of a
table. A 5/16 in. hole should be made through the upper part X and Z at
one side of the center, so that a long 5/16 bolt can be put through and
used as described in App. 93, if desired. A smaller hole, 1/4 in.,
should be made on the other side of the center for a 1/4 in. dowel. The
dowel, D, is shown, and this size is a little smaller than the hole in
ordinary spools, shown at A and B. One-quarter in. dowels can be made to
fit fairly tight into the holes by wrapping paper around them.
Five-sixteenth bolts can be screwed into the spool holes, shown by the
bolt magnet in Fig. 71. To firmly hold a spool from twisting around upon
the dowel-axle, a set-screw, S S, is needed. These are small screws, say
5/8 in. long, No. 5. A small hole should be made into the spool before
forcing in the screw. (App. 25.)
The spools A and B are fastened in this way, by set-screws, to D. The
handle, H, is made as in App. 93, in this case a short stove bolt, S B,
being used and screwed into B. Fig. 69 shows a very simple form of
handle for all such purposes, which may be used instead of the one here
shown. The details of winding on the wire are given under App. 88.
APPARATUS 95.
_133. Attachment for Winder._ Fig. 72. By using this addition to App. 93
or 94, almost any ordinary kind of windings can be made. The wooden
block, A, may be about 2 in. square and 7/8 in. thick. A set-screw, S,
binds it to the dowel-axle, D, which is made to turn by one of the forms
of cranks given, and which is held in one of the frameworks. Windings
like that shown in App. 112, Fig. 85, can easily be done with this, the
upright part, with the two spools, being screwed right to A of Fig. 72.
[Illustration: Fig. 72.]