US1349182A

US1349182A - Windmill

Info

Publication number: US1349182A
Application number: US307824A
Authority: US
Inventors: Zahnow Herman
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-06-30
Filing date: 1919-06-30
Publication date: 1920-08-10
Anticipated expiration: 1937-08-10

Description

H; ZAHNOW.

WINDMILL.

APPLlCATlON FILED JUNE 30,1919.

Patented Aug. 10, 1920.

2 SHEETS-SHEET 1.

\ Fig. 7

Fig. 3

H. ZAHNOW.

WlNDMILL.

APPLICATION FILED JUNE 30, $919.

Patented Aug. 10, 1920.

hail

HERMAN ZAI-INOW, or BALFOUR, NORTH DAKOTA.

WINDMILL.

To all whom it may concern:

Be it known that I, HERMAN ZAHNoW, a

citizen of the United States, residing at Balfour, in the'county of McHenry, State of North Dakota, have invented certain new and useful Improvements in Windmills; and i do hereby declare the following to be a full, clear, and exact description 'of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in windmills, and particularly to the type of vertical wheel windmills.

Cine object of the present invention is to provide a novel and improved windmill which will automatically collapse when the wind pressure becomes too great so that racin'g will be prevented.

Another object is to provide a novel and improved structure of this character; the wheels are normally side-by-side in the same plane and so mounted that when the wind pressure becomes too great both wheels will swing rearwardly at opposite sides of the vane or tail.

A further object is to provide novel and improved means for automatically restoring the wheels to a position toward the wind when the pressure has been reduced to the point of safety.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawings.

In the drawings: v

Figure lis a front elevation of the windmill in normal running position.

Fig. 2 is a top plan view of the mill in the position of Fig. 1.

Fig. 3 is a top plan View of the mill when the wheels have been swung backwardly at the sides of the vane.

Fig. 4 is an enlarged vertical sectional view taken on the line 4-4 of Fig. 1, through the vertical standard and shaft.

Fin. 5 is a rear elevation of the windmill in the position of Fig. 1 the lower portion of the tower being broken away.

Fig. 6 is a sectional view takenon the line 6-6 of Fig. 5 showing the construction of one of the brace arms.

Fig. 7 is a vertical transverse sectional view taken on the line 77 of Fig. 2 showing the arrangement of the wheel supporting arms;

Specification of Letters Patent.

Application filed June 30, 1919.

vZontal shaft 28,

Patented Aug. 10, 1920. Serial No. 307,824.

to the accompanying drewlngs, 10 represents a skeleton tower h usually provided for windmills a d having the vertical tubular member 11 disposed longitudinally theretl'lrough, which has the operating shaft 12 disposed within it. in the upper end of this shar'; there is mounted the double-faced bevel pinion l3. Secured on the upper portion of the shaft and the member 11, at vertically spaced points, are the

collars

14 and 15, and carried by these collars and extending at right angles from the, tubular member, are the horizontal arms 16 and 17, the rear ends of which carry the vane or tail 18 of the windmill. Rotatably engaged on the member 11, above the lower collar 15, is a collar 19, and pivotally connected to this collar 19 is the bifurcated lower end of the brace arm 20. Another collar 21 is loosely mountee on the member 11, above the collar 19, and has the lower end of the other brace arm 22 pivotally connected thereto. The collar 14 acts as a stop collar to support the

collars

23 and 24 of the supporting

arms

25 and 26 which extend horizontally outwardly from the said collars. Loosely engaged on the upper end of the shaft 12, above the upper end of the tubular member 11, is a T-coupling 27. and engaged in the horizontal portion thereof is the inner end of the horithe outer end being rotatablv supported in bearing bracket 29 carried by the outer portion of the arm 26. The nner portion of the shaft 28 has fixed there to a pinion 29 which meshes with the toothed upper face of the pinion 13. while the outer end is provided with a bevel pinion 30 which meshes with a bevel pinion 31 carried bv the hub 32 of the windwheel 33. This hub is supported on a shaft 34 carried by and connected to the outer ends of the

arms

20 and 26. Carried by the end portions of the arm 25 are the bearing brackets 35 in which is rotatably supported the shaft 36. The shaft has on its inner end a bevel pinion 37 which meshes with the lower toothed face of the pinion 13, while on the outer end there is mounted a bevel pinion 38 meshing with the pinion 39 carried by the hub 40 of the other wheel 41. This hub 40 is supported on a shaft or axle 42 carried by the upper ends of the

arms

22 and 25. Each of the hubs has the radial spokes 43 to which are secured radial arms 44, and carried by these is a ring 45, the blades of the 7 tion of the tower cally wind up the "chain 48,

ally connected vmeans of the links 51, whereby, when the vlinks 51 rearwardly 20.

wheel, shown at 46, being connected to this iii: and to the hub.

Mounted in the lower portion of the tower is a spring actuated drum 47, and secured to this drum, and wound thereon, is one end of a chain 48 which extends upwardly over. a pulley 49, on the upper porwhere it is secured to a;

block 50 slidably mounted on the upper arm 16 of the tail or vane. This block is pivotto the arms and 26 by wind pressure becomes too great for the wheels the wheels and the

arms

25 and 26 will be swung rearwardly toward .the opposite sides of the tail or vane, and by reason of the connection of the the block 50 will be pushed on the arm or rod 16, with the result that the chain 48 will be pulled upwardly thereby and unwound from the drum, against the tension of the spring. Thus the spring of the drum is of a strength to hold the wheels in the face of a wind of a certain pressure, and when this pressure is exceeded. the spring will yield and permit the collapsing of the mill so that the wheels will not race and be liable to damage or breakage. When the wind pressure is reduced to the safety point for the wheels, the spring drum will automatipulling the block 50' inwardly toward the shaft 12, and restoring the wheels to their operative position by the pushing action of the links 51. A brace 52 extends from the upper arm 16 V to the tubular member 11 where it is connected to a collar 58 carried by and rotatable with the'tubular member. Thus the various arms, the vane, and the wheels are capable of swinging axially on the shaft 12,

tower supporting an upright tubular memher, a shaft rotatably mounted inthe latter, and a doublefaced beveled pinion on the shaft of collars on said shaft, horizontal arms and oblique braces projecting from said collars to both sides of the shaft,'wind wheels mounted in the outer ends of said arms, shafts connected with them and leading inward and having beveled pinions meshlng with opposite faces of that mentioned, arms projecting to the rear from certain of said collars and carrying a vane, a block slidably mounted on one of said arms, links pivotally connecting it with said lateral arms, and means drawing the block forward and swinging the lateral arms into position to hold the wheels normally in a single plane, said means yieldunder excess wind-pressure to permit ing back into parallel the wheels to swing planes.

In testimony whereof, I aflix my signature in the presence of two witnesses.

HERMAN ZAHNOW.

Witnesses:

O. E. HANSON, E. E. ScnMm.