US776781A - Windmill. - Google Patents

Description

No. 776,781. PATENTED DEC. 6, 1904.

1). A. FLETCHER & M. J PRAMBAOH.

WINDMILL.

APPLIOA'IION FILED 001214, 1904.

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Altamcy s No. 776,781. PATENTED DEC. 6, 1904.. D. A. FLETCHER & M. J. FRAMBAUH.

WINDMILL.

APPLIUATION FILED 001,14, 1904.

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UNITED STATES Patented December 6, 1904.

PATENT ()EEICE.

DAVID A. FLETCHER AND MATHEW J. FRAMBAOH, OF HARTLEY, IOWA.

WINDIVIILL.

SPECIFICATION forming part of Letters Patent No. 776,781, datedDecember 6, 1904.

Application filed October 14, 190 1. Serial No. 228,415. (No model.)

To all whom, it may concern:

. has for its object the provision of improved means for converting the rotary motion of the wheel into reciprocating motion, as of a pump-rod. In furtherance of the object a pitman is dispensed with and a lever is employed, which is connected to the pump-rod and is actuated by a sliding block carried by crank-gearings, as more fully hereinafter described.

In the accompanying drawings, Figure 1 is a side elevation of the head of the windmill. Figs. 2 and 3 are sections on the line 2 2 of Fig. 1, showing the parts in diiferent positions. Fig. A is a top plan View. Fig. 5 is a side elevation showing the vane swung around with the wheel thrown out of the wind and the brake applied.

Referring specifically to the drawings, 6 indicates the revoluble head-block mounted in any suitable manner to rotate at the top of the tower 7. This head-block is forked, as at 8, and the wheel-shaft 9 is carried in bearings in the forks and extends across between the same, the wheel being indicated at 10 of any proper construction. The wheel-shaft 9 carries two pinions 11, which mesh with a pair of spur-gears 12, which are located above the said pinions and are carried on stub-shafts which find bearings in the forks 8, near the upper ends thereof. These gears 12 are connected by a crank-pin 13, which carries a sliding block 14:, movable along the lever 15. The sliding block 1A is hung from the crankpin 13 by a transverse sleeve connection 16, which allows the block to turn or swing on the crank-pin to accommodate the motion.

The lever 15 is fulcrumed between two arms 16, projecting laterally from the forks 8, by means of a rocking cross-bar or shaft 17 at the end of the lever, which cross-bar finds bearings in the arms 16. The length of the lever 15 is suflicient to accommodate the movement of the sliding blockimpartcd by the rotation of the crank-wheels. At its front end the lever is recurved downward and backward,

as at 18, and is connected at its extremity by a pivotal connection at 19 with the upper end of the pump-rod 20, which extends thence down through the head-block in the ordinary manner.

The provision of a pair of pinions on the wheel-sl1aft and a pair of crank-wheels con nected by a crank-pin and having a bearing in both forks of the head-block prevents lateral strain or binding and makes the millvery easy of operation. A cover 21, hinged at 22 to the arms 16, serves to protect the working parts from the weather.

The vane of the wheel is indicated at 23. This is carried at the end of two arms 24, which are pivotally connected by a bolt 25 to lugs 26, projecting from the rear fork 8. A spring 27, wound around said pivot-bolt and connected to the vane, serves to normally throw the vane in straight position that is, in line with the axis of the wheel-shaft-so as to hold the Wheel into the wind. A rope 28 is connected to the vane and extends thence to the end of a hollow arm 29, which projects laterally from the head-block. Extending through this arm the rope passes down through the tube of the head-block to the ordinary po sition at the bottom of the tower, By pulling the rope the vane is swung around and thewheel thrown out of the wind.

The brake is operated by the movement of the vane. It comprises a lever 30, which is pivoted at 31 on the head-block and is connected at the front end to a strap 32, which extends over the hub of the wheel to a fastening on the other side. The rear end or tail of the brake-lever is curved laterally toward the lower arm 24 of the vane and is shaped on its under side to form a cam-surface 33, which lies in the plane of movement of said arm 2 1. When the vane is swung around, its arm strikes the cam-surface, which rides over the arm and lifts the rear end of the lever, with the elfect ot' depressing the front end and applying the band or strap brake to the hub of the wheel, thereby effecting the braking action.

Rotation of the wheel and the engagement of the pinions on its shaft with the crankgears 12 turns the latter, and by means of the sliding block Working on the lever 15, which is attached to the pump-rod, the latter is reciprocated and a powerful and direct lift and thrust are produced.

WVhat we claim as new, and desire to secure by Letters Patent, is-

1. In a windmill, the combination with the forked head-block, of the wind-wheel having a shaft carried in bearings in the forks, pinions on the shaft between the forks, a pair of gear-wheels carried on the forks respectively and in mesh with the pinions, and having a connecting crank-pin, a lever connected to the 'pump or reciprocating rod and working between the gear-wheels, and a block carried by the crank-pin and slidable on the lever.

2. In a windmill, the combination with the head-block, the wind-wheel and its shaft, of a pinion on the shaft, a crank-Wheel in mesh with the pinion, a lever fulcrumed at one end on the head-block and having its other end

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