The gearing for the transmission of the power from the wheel shaft to the shaft calculated for the delivery of the power at an accessible point below must next be adjusted.  The windmill is intended for installation on top of a building, and the power may be transmitted below, or to the top of a stand specially erected for the purpose.  It is a good plan to visit some of the second-hand machinery dealers and get four gears, a pulley and a shaft.  Gears about 5 in. in diameter and beveled will be required.  Adjust the first pair of the beveled gears as at F and G. If the wheel shaft is metal, the gear may be set-screwed to the shaft, or keyed to it.  If the shaft is hardwood, it will be necessary to arrange for a special connection.  The shaft may be wrapped with sheet metal and this metal fastened on with screws.  Then the gear may be attached by passing a pin through the set-screw hole and through the shaft.  The upright shaft like the wheel shaft is best when of metal.  This shaft is shown extending from the gear, G, to a point below.  The object is to have the shaft reach to the point where the power is received for the service below.  The shaft is shown cut off at K. Passing to Fig. 3 the shaft is again taken up at L. It now passes through the arrangement shown, which device is rigged up to hold the shaft and delivery wheel P in place.  This shaft should also be metal.  Secure the beveled gears M and N as shown.  These transmit the power from the upright shaft to the lower horizontal shaft.  Provide the wheel or pulley, P, with the necessary belt to carry the power from this shaft to the point of use.

The tail board of the windmill is illustrated in Fig. 4.  A good way to make this board is to use a section of thin lumber and attach it to the rear upright, E of Fig. 2.  This may be done by boring a hole in the upright and inserting the shaft of the tail-piece.  In Fig. 4 is also shown the process of fastening a gear, R, to the shaft.  The set screws enter the hub from the two sides and the points are pressed upon

[Illustration:  Fig. 6]

the shaft, thus holding the gear firmly in place.  The platform for the entire wheel device is shown in Fig. 5.  The X-piece S is bored through in the middle and the upright shaft passes through.  The tin run-way or ring is marked T, and the X-piece very readily revolves in this ring, whenever the wind alters and causes the wheel’s position to change.  The ring and ring base are secured to the platform, U. The latter is made of boards nailed to the timbers of the staging for supporting the mill.  This staging is shown in Fig. 6, in a sectional view.  The ring with its X-piece is marked V, the X-piece is marked W, and the base for the part, and the top of the stage is marked X. The stage is made of 2 by 4-in. stock.  The height may vary, according to the requirements.  If the affair is set up on a barn or shed, the staging will be sufficient to support the device.  But if the stage is constructed direct from the ground, it will be necessary to use some long timbers to get the wheel up high enough to receive the benefit of the force of the wind.  Proceeding on the plan of the derrick stand, as shown in Fig. 6, a stage of considerable height can be obtained.