US1020924A

US1020924A - Windmill.

Info

Publication number: US1020924A
Application number: US19027804A
Authority: US
Inventors: Moses C Nixon
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-01-23
Filing date: 1904-01-23
Publication date: 1912-03-19
Anticipated expiration: 1929-03-19

Description

M. C. NIXON.

WINDMILL.

APPLICATION I'ILBD JAN. 23, 1904. 1,020,924. Patented Mar. 19,1912.

. 2 SHEBTS-BHBET 1.

M. G. NIXON.

WINDMILL.

APPLGATION FILED JAN. 23. 1904.

Patented Mar. 19, 1912.

2 SHEETS-SHEET 2.`

UNTTED STATES PATENT OFFICE.

MOSES C. NIXON, OF PERU, INDIANA.

WINDMILL.

To all 'whom it may concern Be it known that I, l/[osns C. NixoN, a citizen of the United States, residing at Peru, in the county of Miami and State of Indiana, have invented certain new and useful Improvements in Windmills, of which the following is a specification, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form part hereof.

This invention relates to improvements in wind mills; the objects being to provide for an adjustment whereby the stroke of the pump-rod may be varied in length; to provide a suitable pull-out mechanism; to provide a safety device that will afford relief when abnormal resistance occurs and other objects which will hereinafter appear; and is shown, preferably, in the construction hereinafter described, which may be varied without departing from the spirit of my invention.

Figure 1 is a side elevation, with the frame partly cut away, and showing a part in section; Fig. 2 is another elevation of the same at right angles to Fig. 1, and including' a part of the tower, which is shown in section; Fig. 3 is a top plan of Fig. 1, and showing also a portion of the vane hinge and its connection with the pull-out and governing mechanism; Fig. 4 is a plan of the anti-friction rollers arranged in their retaining member; Fig. 5 is a detail plan of the lower arm of the bell-crank showing the position of the breakable plate; Fig. G, is a detail view showing a modified arrangement of the cam, following member, and pumprod; Fig. 7, is a detail view showing a modified form of cam; Fig. S, is a detail view showing a modified arrangement of pull-out lever, spring, and connection with the vane; Fig. 9 is a perspective view of the vane shown in connection with the vanehinge.

Similar numerals of reference indican7 corresponding parts throughout the several views, and referring now to the same: 1 is the main frame, and 2 is the tower upon which the main frame is movably mounted. The tubular mast 3 is fixed in the end of the main frame and extends down through the chair -1 and step 5, and has a rigid annular flange 6 near its lower end which rests upon a series of rollers 7 interposed between said flange and step. The said rollers are journaled upon pins 8 which are arranged in a Specification of Letters Patent.

Application led January 23, 1904.

Patented Mar. 19, 19112.

Serial No. 190,278.

retaining member 9. The said member consists of an inner and an outer ring, 10 and 1l, joined by webs 12 which intervene said rollers.

In the main frame 1 is journaled the camshaft 13 upon which is rigidly fixed a grooved cam lil and gear 15. The power shaft 17 is also mounted in the main frame and has fixed thereon a pinion 1S which meshes with and drives the gear 15, thus actuating said cam. A following member 19, having a sleeve 20, is carried by a shaft 21 which is mounted in the main f `ame, `and a roller 22 is mounted upon the side of the lower end of said following member and ranges in the groovcd cam 14, whereby said following member is actuated when the cam is in motion.

A bell-crank or lever 23 is carried by a shaft 24 which is mounted in the arms 25 of the main-frame, and is connected to and actuated by the following member by means of a link 2G. A series of pin holes 27 is made in said following member, and a like series of holes 2S is made in the upper arm of said bell-crank, each affording means for connecting the respective ends of said link. The pump-rod 29 is connected to the lower arm of said bell-crank and depends therefrom through the mast It is obvious that when the cam .is revolved the following member will be swung upon its shaft 21, and that the bell-crank will be oscillated upon the shaft 241 to an extent according to the adjusted positions of the connecting link 26 respecting said following member and bellcrank.

Example: If the link is engaged in the uppermost holes 27 and 2S, the extent of the movement of said bell-crank, and pump-rod, will be short as compared with that when said link is engaged in the lowermost holes of said series. It is also obvious that the bell-crank and link may be eliminated, and the following member 19 may then be removed from the shaft 21 and, instead, mounted upon the shaft 24, so that the pump-rod may be connected directly to the following member by engagement in the holes 27 thereof, thus effecting another adjustment, as shown in Fig. 6.

Upon the shaft 211 is also mounted a pullout gear 30 having an operating arm 31 which extends to a point over the mast, and a lug 32 projects from the lower part of said gear and extends to a point beneath the adjacent arm 25 of the main frame. This lug serves as a stop to limit the upward movement of the said arm 31 and corresponding movement of said gear. A spring 33 is interposed between the said lug and arm 25, and is attached to one or the other to hold the same in position, and serves as a cushion in stopping. the movement of the gear.

A pinion 34 is mounted loosely upon a stud 35 which projects upward from a boss 36 on the end of the arm 25 adjacent the gear 30, and the teeth of said pinion mesh with those of said gear 30. An arm 37 extends horizontally from and moves with said pinion, and has a connection, by means of a rod 33, with the vane hinge 39, the latter being secured to lugs 40 which project from the main frame. The vane 60 is rigidly attached to the hinge 39 by a suitable stem 61 and brace 62. A tension device 41, having an open bottom, is mounted revolubly upon the stud 35 and rests upon the top of the pinion 34. A spring 42 is coiled around said stud with its lower end secured to said pinion, and its upper end fixed to said device. An anchor plate 43 is rigidly mounted upon the stud 35 with its lower face next the top of said device, and a pin 44 is inserted through an opening near the outer edge of said plate into one of the series of holes 45 in the top of said device. The purpose of the said plate and pin is to retain the said device in adjusted positions.

Example: By turning the device, the tension of the spring 42 will thereby be increased or relaxed according to the direction in which the device is turned, and the tendency of the pinion to carry its arm 37 toward the vane will therefore be made greater or less as desired. IVhen the spring has thus been adjusted to the proper tension, the said pin 44 is inserted through the anchor plate into one of the holes 45 in said device, thereby holding the same in the adjusted position.

The arm 31 of the pulleout gear has a wire 46 attached to its end, which leads down through the tubular mast, and is for the purpose of operating said gear. By pulling the said wire downward, the gear 30 will drive the pinion in the direction contrary to the tension of said spring, and the vane will thereby be drawn toward the arm 25 of the main frame; and when the wire is released the said spring because of its tension, will draw said pull-out gear, pinion, and vane to their respective normal positions.

I have indicated in the drawings a weighted lever 50 extending from the gear 30. This will in eiect have a tendency to cause the vane to remain in normal position, and may be employed to assist the spring or be used in substitution for said spring, or be eliminated. It should be noted, however,

that the power shaft upon which the windwheel is mounted, is arranged in the frame to one side of the axis of rotation thereof, and therefore when sufficient wind pressure is exerted against the wheel., said frame will turn upon its bearing and carry said wheel out of "the wind. The vane, of course, re mains in line with the course of the wind, and therefore the spring is actuated, and the tension thereof increases directly with the angle to which the frame is moved respecting the vane. Therefore, because of the increasing resistance of said spring as the wheel is carried from the wind, a more constantv speed of the wheel is attained and a more uniform power is consequently ob tained therefrom than where only a uniform or decreasing resistance is afforded to hold the wheel to Windward.

In Fig. 3 is shown in dotted outline upon the power shaft 17, a portion of the hub 47 of a wind wheel, and also, interposed between the end of'said hub and the bearing 48 of said shaft, is likewise indicated a retaining member with rollers 49 which is, in structure, the same as that shown in Fig. 4, and hereinbefore described. This is intended to reduce the friction incidental to the end thrust of the shaft 17 due to the pressure of wind against the wind wheel.

It will be noted, in Fig. 1, that the grooved cam is of such form as will cause a differential motion to be imparted to the following member. This, of course, may be substituted by another form of cam which will impart a uniform motion, if desired, such, for instance as shown in Fig. 6.

lVhile I have shown a power shaft, cam, and following member as the driving mechanism, and have shown an intervening lever between said mechanism and pump-rod, which is, in this instance, represented as a bell-crank, I do not wish to conne myself to the particular driving mechanism here shown, nor to the bell-crank. The idea of the invention is to effect an adjustment of the lengt-h of the stroke of the pump-rod by the use of a lever intervening the pump-rod `and driving mechanism with an adjustable connection between the latter and said lever.

As a means of preventing the driving mechanism from being subjected to abnormal strain, due to such causes as the freezing of the pump, I have made the lower arm of the bell-crank in two sections: The arm 54 is integral with, and forms a part of the hell-crank proper, and an extension piece 51 is connected to the arm 54 by a pin 55. The said piece is held rigidly in line with the arm 54 by means of breakable plates 52 which are secured respectively to the upper and lower sides of the arm 54 by a bolt 53, the latter extending through the end of said arm and plates, and the edges of said plates extend respectively over and under and rest against the adjacent arms of said extension piece. It is obvious that when undue resistance hinders the movement of the pump-rod, the plates will become broken and the arm 54 of said bell-crank may then move between the arms of said extension piece, thus allowing the driving mechanism to run freely without actuating the pump-rod. While I have shown this safety device as arranged in connection with the bell-crank, I do not wish to confine myself to that part-icular form of construction or arrangement. The idea is to interpose a safety device for this purpose between the source of power and the pump.

I have shown the spring 42 as having connections with the main frame and pinion 34. This, however, is not material so far as the said connection of the spring to the pinion is concerned, since the same result would be obtained by making this connection with the pull-out lever instead. In this event the arm 37 and pinion could be eliminated and a suitable connection made between said lever and vane. As an example, a pull-out lever 56, shown in Fig. 8, may be mounted upon shaft 24, and a spring 57 arranged in connection with said lever and the arm 25 of the frame to hold the lever in normal position: and the vane 39 may be connected with t-he arm 58 which extends from said lever, by means of a rod 59, so that when the lever 56 is moved, the vane will accordingly be actuated.

Having described my invention what I claim as new and desire to secure by Letters Patent, is:

1. In a wind-mill having a driving mechanism; an oscillating lever comprising a plurality of parts and having suitable connection with said mechanism to be actuated thereby; and a safety device arranged to normally hold the parts of said lever in working connection and adapted to relieve the strain when abnormal resistance occurs.

2. In a wind-mill having a driving mechanism; an oscillating lever comprising a plurality of parts and having suitable connection with said mechanism to be actuated thereby; and a safety device arranged to normally hold the parts of said lever in` working connection and release the same when under abnormal strain.

3. A wind mill comprising a driving mechanism; a lever having connection with said mechanism to be actuated thereby; a piece attached to said lever; a safety device arranged to normally hold said lever and piece in, working connection; and a pumprod in connection with said piece.

4. In a wind mill, a main frame movably mounted and carrying a wind-wheel and vane; a stud extending from said frame; an arm movably mounted upon said stud and having a connection with said vane; a tension device adjustably mounted upon said stud; a spring in connection with said arm and tension device; and an anchor plate fixed upon said stud and having in connection therewith means to engage and hold said tension device when adjusted.

5. In a wind mill, a main frame movably mounted and carrying a wind wheel and vane; a movable arm mounted on the frame and having a rod connection with said vane; a tension device in connection with the frame; and a spring connecting said arm and tension device.

6. In a wind mill, a main frame movably mounted and carrying a wind-wheel and vane; a movable arm mounted on the frame and having a rod connection with said vane; a tension device in connection with the frame; a spring connectingl said arm and tension device; and means to adjust said tension device.

7 In a wind mill, a bell-crank arranged in connection with suitable driving mechanism; an extension piece connected to one arm of said bell-crank by a pin; breakable plates arranged in connection with said arm and extension piece to hold the latter normally rigid with the former; and a pumprod attached to said extension piece.

8. In a wind mill, a main frame; a revoluble grooved cam mounted in said frame; a swinging following' member arranged in said frame and having a connection with said cam to be driven thereby; a lever carried by said frame, having a connection with said following member to be actuated thereby; and a pump1'od attached to said lever.

9. In a wind mill, a movably mounted main frame carrying a wind-wheel and vane; a pull-out gear suitably mounted in said frame; a pinion meshing with said gear; and an arm extending from the pinion and having a rod connection with said vane to actuate the same.

10. A wind mill comprising a driving mechanism, a lever having connection with said mechanism to be actuated thereby, a pump-rod, and a safety piece connected to said lever and pump-rod and forming a connection between them, whereby the oscillation of said lever will normally drive the pump-rod and yield under abnormal strain.

l1. In a wind mill, a main frame; a revoluble cam suitably mounted in said frame; a following` member suitably pivoted to the frame and having connection with said cam to be driven thereby; a pump-rod; and a lever having connection with said pump-rod and following member to be actuated by the latter.

l2. In a wind mill, a main frame; a driving shaft mounted in said frame; a suitable following member' pivoted to the frame and havino' connection with the shaft to be actuated tliereby; a pump-rod; and a lever having connection with said following member to be actuated thereby.

13. In a wind mill, a main frame; a driving shaft mounted therein; a following member pivoted to said frame and having suitable connection with the said shaft to be actuated thereby; a lever in'conneetion with the frame; and a pump-rod connected to said lever to be actuated thereby.

14. In a wind mill, a main frame; a driving shaft mounted therein; a following member pivoted to said frame and having suitable Connection with the said shaft t0 be actuated thereby; a lever in connection with the frame; suitable adjustable connection between said lever and following member;

` and a pump-rod connected to said lever to be actuated thereby.

15. Inawindmill,adriving mechanism; a lever having connection with said meohanism to be actuated thereby; an extension piece pivotally attached to said lever; a safety device normally holding said lever and extension piece in working connection; and a pump-rod in connection with said eX- tension piece.

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

' MOSES C. NIXON.

Vitnesses W'ALTER G. BURNS,

C. J. Losn.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C.