US263714A

US263714A - Windmill

Info

Publication number: US263714A
Authority: US
Publication date: 1882-09-05
Anticipated expiration: 1899-09-05

Description

(No ModeL) G. W. MCKENZIE.

WINDMILL. .NO. 263,714. Patented Sept. 5, 1882.

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SPECIFICATION forming part of Letters Patent No. 263,714, dated September 5, 1882,

Application filed July BL, 1882. (N0 model.)

[1" 0 all whom it may concern:

Be it known thatl, GEORGE W. MCKENZIE, a citizen of the United States, residing at Harrington, in the county of Washington and State of Maine, have invented certain new and useful Improvements in Windmills, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to certain improvements in windmills designed for pumping, and will first be described, and then designated in the claims.

In the drawings hereto annexed, Figure l is an elevation of the windmill arranged to work a force-pump. Fig. 2 is an inverted plan view of the movable platform. Fig. 3 is a view of the pronged rod which raises the platform.

The letter A designates the pole or spar, which supports the windmill B and its con nections O, a movable platform, adapted to be raised and lowered a few inches. An 'iron rod, D, has two prongs, D, the upper ends of which enter holes 6 in the lower side of the trestle or frame pieces G. The lower end of the iron rod has one end of a short chain, f, attached, which passes overapulley, G. The other end of the chain is attached to a wire or rod, H, which leads off to any desired point-- a dwelling-house, for instance-from which it may be desired to stop or start the wheel.

The horizontal" vane support I isstayed by a curved brace, J, one of which is made fast on each side of the support. The support is swiveled at t, on the upper end of the pole, and a collar, 70, fits loosely around the pole below,

' the curved braces being attached to the collar.

By this'means the vane and wind wheel may turn freely in a horizontal plane. The windwheel is mounted on a crank-shaft, Z, above the vanesupport, and a wire, m, attached to the box a on the crank, passes down through the central bore, a, of the pole, which terminates at one side at b, from which point down the pole has in its side a groove, 19, which is practically a continuation of the bore. At or near the point where the side groove commences is the lower end of the wire at, which is provided with a swivel-connection, c, to which the wire m is attached, and connects with the bellcrank lever q, pivoted to a side bracket, g, on the pole. The. swivel 0 permits the windwheel to turn without twisting the lower part manner as to depress the piston.

piston-rod when the crank on the shaft lis on V the descending part of its revolution, and said spring also serves to keep the wires m and t strained. If a suction-pump be used, the spring to may be attached to the piston-rod in such a This mode of transmitting power from the wheel to the pump horizontally has several advantages over the ordinary method-via, the wires or rods may be carried underground, through the air, around corners, and to a long or short distance, while in the ordinary way it would not be practicable to carry the'wires underground or around corners, and but short distances through air.

An arched support or standard, d, is above the crank-shaft, and-a spring, d, connects the box a on the crank-shaft with the support. This spring assists the wind-wheel when the crank is on the ascending part of the revolution, and hinders it as much when on the descending part, and thus eqnalizes in some degree the work of the wheel, whereby the wheel will revolve during a light wind, when otherwise it would stop on, the upturn of the crank.

A lever, 00, is employed to draw the wire or rod H when it is desired to stop the windmill.

The pole may be sustained in any desired manner. In the present instance silLpieces L are placed at right angles on the ground, and four braces,N, are employed, one end of which bear on the sills and one against the pole. Wire stays may also be used to assist in supporting the pole. .The trestle or four frame pieces, G, of the platform are so crossed at the center and secured as to form a square opening, (see Fig. 2,) which fits loosely over or around the upper end of the pole, whichjs squared, as at A, to adapt it to fit the squarearrangement the platform may slide up and down on the squarrd part of the pole, but is prevented thereby from turning.

The operation of the starting and stopping device is as follows: The wire H may be led to the house or any other convenient place, where it may be attached to the lever 00, and by moving the lever in a direction to bring a strain on the wire H the chainf, to which the pronged rod is attached, is drawn over the pulley Gr, raising the pronged rod, and with it the movable platform 0, which acts as a frictionbrake by pressing against the rims of the wheel with such force as to stop it instantly in the heaviest wind. When it is desired to start the wheel at a time when the wind is blowingitis only necessary to release the lever a2, and the platform falls of its own weight.

It will be seen thatthe wheel may be stopped in any position where it may happen to be, and will then obey the rudder or vane, rolling around on the platform 0 in any direction to face the wind.

The platform may be raised by means of levers, pulleys, weights, or in any way found most convenient.

Having described my invention, I claim and desire to secure by Letters Patent of the United States- 1. In a windmill, the combination, with the wind-wheel, of a supporting-pole having its 0 upper end squared, a vertically-movable.platform having at its center a square opening, and means to raise the platform, as set forth.

2. In a wind mill, the combination, with the wind-wheel, of a support for the wheel, a vertically-movable platform around the support, adapted, when up, to press against the rim of the wind-wheel, a rod having two prongs whose upper ends are attached to the platform, a chain attached to the lower end of the said rod, and a pulley mounted above the lower end of the rod, and over which pulley the chain passes, as set forth.

3. In a pumping-windmill, the combination, with the crank-shaft and wire attached thereto, of the bell-crank levers q and r, the wire m connecting them, a horizontal lever, a, one end of which is connected by a wire, it, with the bell-crank lever r, and the other end with the piston-rod v of a foree-pump, and a spring, w, attached to the said piston-rod and adapted to raise it, as set forth.

In testimony whereofI affix my signature in presence of two witnesses.

GEORGE W. MCKENZIE.

Witnesses:

' FRED. G. NASH,

LUKE HAPGOOD.