¶After cleaning a shotgun, or a rifle, a cork large enough to be seen readily should be placed in the end of the barrel to prevent rusting. The cork should not be pressed into the end deeply as, if it is forgotten and the firearm discharged without removing it, a dangerous explosion may result.
A Sail-Rigged Wind Motor
By E. R. HENDERSON
Ample power for driving light machines in a repair shop was obtained by the use of a wind motor like that shown in the [sketch] and in the [detail drawings]. The device has numerous other applications, particularly as a substitute for wind motors that require a high tower, as in the driving of a pump. As an interesting and inexpensive means of providing power for a home or boy’s workshop, or as an experimental device, the motor is also worth while making. The materials used are easily obtainable, and the construction can be carried out with ordinary tools, for the most part. The driving connections may be obtained from old machine parts. The dimensions given are for a motor of considerable size, and may, of course, be reduced proportionately for a lighter machine. If the device is made by boys, the framework and other parts should be made one-half as large as the sizes indicated. The wood used should then be three-fourths as thick as that shown. The roof of the structure upon which the device is mounted must be well braced and strong enough to stand the strain. The sails are headed toward the wind, like those on a sailboat, when the motor is at rest, by means of a control rod, F, shown in the working drawing.
The Novel Wind Motor Developed Power for the Driving of Machines in a Repair Shop, and can be Made in Various Sizes for Work or Play Purposes
The main structural portion is a vertical beam, or tower, tapered at the ends and built up of 1 by 1-in. rods, strongly braced, especially in the lower portion, as [indicated]. It is 14 ft. high, and built around an 18-in. square board, A, notched at the corners to receive the posts. A similar 14-in. square, B, is built into the lower portion. The lower end of the tower is pivoted on the ridge of the roof on a hollow shaft made from a section of iron pipe, D, and provided with a metal bearing washer, E. The pipe D is split at its upper end, as shown in detail, and fastened to the wooden plate B. The control rod F passes up through the pipe D, and is fixed to the control wires, reaching the sails, by means of a leather strap, from which an iron swivel, C, is suspended, as shown in the detail at the left. The ends of the strap pass over pulleys, fixed to the lower side of the plate A, and connect with the sail-control wires. Spiral wire springs are attached to the wire connected to each end of the strap, as shown only at the right sail beam, and aid in controlling the sails. These springs are adjusted so that when the control rod is drawn down to its lowest extent, the sails will be with the edge “into the wind,” thus neutralizing each other, and causing the sail beam to be at rest.
The Method of Construction is Shown in Detail: By Using the [Perspective Sketch] in Connection with These Working Drawings, the Arrangement of the Parts is Readily Understood
The sail beam extends 9 ft. out from the center of the tower, and is built up of three pieces. The center section extends through the tower, above the plate A, and the brace beam, which crosses it at right angles, as shown in the perspective sketch, and also at the detail of the strap arrangement. The center section is of 1 by 4-in. stock, and the end portions are of 1 by 2-in. stuff, fastened securely, as shown at detail G. The sails are supported on masts, 1 in. square, pivoted at their junctions with the sail beam, as shown at detail G, and in guy-wire plates at their extreme ends, as shown at detail J. The fastening and bracing of the gaffs at the mast ends is also shown at J.
The canvas sails are 4 by 4 ft., and mounted on the booms, gaffs, and masts. The ends of the booms nearest the masts are weighted with lead, as shown at detail G, and extend beyond the masts. The outer ends of the booms are joined in pairs, and connect to the spring and strap control. The guy wires N, of No. 18 wire, supporting the masts are fixed to the ends of the sail beam and to the ends of the brace beam, as shown in the sketch and the working drawing. The fastening at the ends of the sail beam is made as shown at detail H, which also shows one of the coil springs. All of the braces for the masts should be fitted carefully, so as to have the proper tension without interfering with the action of the sails, before the tower is set into its place. The device should be tested on the ground, with the pivot shaft set in a suitable support, before attempting to mount it on a roof, or other structure. The support for the bearing should be fitted into the roof, as shown. The power from the shaft is transmitted to the bevel gears, and from them to the drive shaft and the belted pulley.