US814600A - Windmill. - Google Patents

Description

PATENTED MAR. 6, 1906.

P; Hi HANGHETT.

WINDMILL.

PPLwATION FILED 01110.10, 1905.

@Jg-gd gy ya@ UNITED sTATEs PATENT oEEIoE.

PHILEMON H. HAN CHETT, OF FAIRBURY, NEBRASKA.

Wl N D Nl l L L Specification of Letters Patent.

Patented March 6, 1906.

Application led January 18, 1905. Serial No. 241,606.

To all whom t may concern.:

Be it knownthat I, PHILEMON H. HAN- CHETT, a citizen of the United States of America, and a resident of Fairbury, Jefferson county, Nebraska, have invented a new and useful Improvement in Windmills, of which the following is a specification.

The object of this invention is to provide means for preventing undue strain on parts of the mechanism of a vaneless windmill.

A further object of this invention is to provide a construction for vaneless windmills in which the shifting mechanism or followerhead is caused to rotate invariably with the wheel-shaft.

My invention consists in the construction, arrangement, and combination of elements hereinafter set forth, pointed out in my claim, and illustrated by the accompanying drawings, in which- Figure 1 is a side elevation illustrating portions of a vaneless windmill, the wheel being removed. Fig. 2 is an elevation, partly in section, illustrating my lmprovement. Fig. 3is a cross-section of Fig. 2. Fig. 4 is a crosssection similar to Fig. 3, showing a modified construction.

In the construction of the device as shown the numeral 10 designates a tower, on which is mounted a main frame 1 1, susceptible of rotation on a vertical axis. Balance weightbars 12 13 are fixed to and project outward horizontally from one endl portion of the main frame 11, and a balance-weight 14 is mounted in the outer ends of said bars. Standards 15 16 rise from the inner ends of the bars 12 13 and are connected at their upper ends to the outer ends of the bars by races 17. A wind-wheel shaft 18 is mounted for rotation on a horizontal axis in bearings fixed to and rising from the -main frame 11 and a spider 19, adapted to support and carry a wind-wheel of the feathering type, is mounted rigidly on the outer portion of said shaft. A crankplate or wrist-wheel is mounted rigidly on the inner end portion of the shaft 18 and is pivotally connected to and drives a pitman 21, depending through the tower. A collar 22 is mounted| on the outer end portion of the shaft 18 loosely and is formed with arms radiating therefrom, thus producing an umbrella-spider adapted to be connected to the blades or fans of the windwheel by umbrella-rods, (not shown,) whereby in the shifting of the spider along the shaft the wind-wheel may be opened or closed. The hub of the wind-wheel spider 19 extends through the bearing 23 and carries the shaft 18 through said bearing.

A follower-head or shifting head 24 is provided and is formed in two members or pieces rigidly connected and loosely embracing the shaft 18 between its bearings. The followerhead 24 is feathered to the shaft 18 for sliding movement thereon and rotation therewith, either by means of a lug 25 on one member of the head projecting into a groove 26 of the shaft or by means of a'spline 27 on the shaft projecting into a groove in one member of the head. The follower-head 24 is connected by rodsj28 29 to the umbrella-spider 22, and said rods extend through apertures of the hub of the wind-wheel spider 19 on opposite sides of the shaft 18. By feathering the follower-head to the shaft and extending the rods 2829 through apertures in the hub of the wind-wheel spider it is assured that the umbrella-spider and follower-head will rotate invariably in coincidence with the shaft 18 and wind-wheel and prevents accidental stopping or retention of the followerhead, that might twist the rods and prevent proper operation of the machine. The follower-head 24 is formed with an annular rib 30, and al collar 31, formed in two members rigidly yet detachably connected, is mounted on and embraces said head, said collar formed With an annular groove receiving and permitting rotation of said annular rib and head. Shifting arms 32 33 embrace and are pivotally connected to the collar 31, and said arms are conjunctively secured to a shifting bar 34. A lever having three arms 35 36 37 is fulcrumed on the upper ends of the standards 15 16, and the extremity of the arm 37 is pivotally connected to one end of the shifting bar 34. A weight 38 is adjustably connected to the lever-arm 35 and tends to move the shifting bar 34 and collar 31 outward, While a draft-wire 39 depends from the extremity of the lever-arm 36 through the tower and may be manually drawn to oscillate the lever in suchv manner as will move the-collar and shifting bar inward. Since the follower-head 24 is Exed to the umbrellaspider' 22 by the rods 28 29, it follows that any movement of thefollower-head longitudinally of the shaft 18 will effect a correspond- IOO ing movement of the umbrella-spider and open or close the fans or blades of the Wind- Wheel.

I claim as my invention- In a Windmill ofthe class described, a shaft mounted horizontally, a Wind-Wheel rigidly mounted on said shaft, pitman-driving rneclianism on said shaft, an umbrella-spider loosely mounted on the outer end portion of said shaft, a follower-head Jformed in two parts adapted to embrace said shaft and mounted on and feathered to and arranged for longitudinal movement on and rotation with said Shaft, Said follower-head located the members of the follower-head, rods connecting the followenhead and the umbrellaspider, Said rods arranged on opposite sides of the shaft and extending through the hub of the Wind-Wheel, and means for shifting said follower-head longitudinally of said shaft.

Signed by me at Des Moines, Iowa7 this 22d day of July, 1904.

PIIILEMON H. HANCHETT. Witnesses:

S, C. SWEET, R. G. ORWIG.

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