US856888A

US856888A - Stroke-adjuster for windmills.

Info

Publication number: US856888A
Application number: US35864507A
Authority: US
Inventors: Frank S Laflin
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-02-21
Filing date: 1907-02-21
Publication date: 1907-06-11
Anticipated expiration: 1924-06-11

Description

PATENTEDJUNE 11. 1907.

1?. S. LAFLIN.

STROKE ADJUSTER FOR WINDMILLS.

APPLICATION FILED FEB. 21, 1907.

2 SHBETSSHEET 2.

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UNITED STATES PTENT OFFICE.

STRQKE-ADJUSTER FOR WINDIVHLLS.

Specification of Letters Patent.

Patented June 11, 1907,

Application filed February 21, 1907. Serial No. 358,645.

To all whom, it may concern.-

Be it known that I, FRANK S. IJAFLIN, a citizen of the United States, residing at Sears, in the county of Rock Island and State of Illinois, have invented certain new and use ful In'iprovements in Stroke-Adjusters for Windmills, of which the following is a specification.

This invention relates to improvements in stroke adjusters l'o r windmills.

The object of the invention is to provide mechanism for altering the stroke of a windmill, with as little friction between the parts as possible, consistent with a strong and durable structure.

In the organization of the mechanism, the shifting device for altering the stroke is so located as to enable one to increase or decrease the length of the stroke; the specific manner of accomplishing this operation and the description of the construction being hereinafter pointed out.

In the drawings Figure 1 is a side elevation of my improvement applied to a wind mill. Fig. 2 is an enlarged detail perspec tive view of the stroke adjusting mechanism. Fig. 3 is a horizontal section on the line 33, Fig. 1. Fig. 4 is a transverse vertical section on the line l4, Fig. 1.

In the drawings; 1, indicates the frame of a windmill 2, a pump 3, the pump rod, composed of two sections 4 and 5. To the section 4, is pivotally connected, as at 6, the curved end of a bent track 7, pivoted to the frame 1, at S. The connection 8, comprises clamp 9, which is passed around one leg of the frame, and provided with cars 10, through which and the long arm of the track 7, passes the pivot pin 11. The track 7, is formed of a single piece, and is bent at 12, to provide an upper short leg 13, and a lower long leg 14, the former terminating approximately in alinement with the pump rod Encircling the lower leg 14, is a sleeve 15, adapted to slide back and forth thereon, and is pivotally connected at 16, with the lower pump rod section 5.

Secured on the frame 1, is a windlass 17, having a handle 18, and pawl and ratchet 19. A rope or chain 20, is wound around the drum 17 then passes around a pulley 21, and is secured to a projection on the sleeve 15. A second rope 22, is also connected to the sleeve and passes over a pulley 23, mounted in a bracket which straddles the legs 13 and 1 1, of the track 7. Rope 22, after passing around pulley 23, passes around a pulley 24, thence down to and around the drum 17. The ropes 20 and 22, pass around opposite sides of the drum, as to wind one, when the other is unwound, and vice versa.

In operation, assume the parts to be as shown in full lines in Fig. 2, and it is desired to decrease the length of stroke of the pump rod 3, the drmn 17, is revolved in direction of arrow a, which draws sleeve 15, toward the left, as shown by the dotted line position as, rope 22, in the meantime being unwound from the drum. Obviously when the sleeve 15, is in the dotted line position a, the stroke of the lower rod section 5, is materially less, than when the sleeve was in the central or full line position. To increase the stroke of the pump red, the drum 17, is revolved in direction of arrow 1), which winds the rope and draws the sleeve 15, toward the right, as shown in the dotted line position 10, (Fig. 2,) the rope 21, in the meantime being unwound. IVhcn the sleeve is in this position thedistance from the pivot 11 is greater than when in either the full left hand or central positions previously described, hence the length of the stroke of the rod section 5, is increased.

The invention is extremely simple in construction and it is thought from the foregoing description, taken in connection with the ac companying drawings the operation and advantages will be rezulily understood by those skilled in the art to which it appertains.

hat I claim is:

1. In combination, a sectional pump red a track formed with a short leg and a long leg, a support, means for pivotally connecting the short leg of the track to one section, means for pivotally connecting the long log to the support, a sleeve pivotally connected. to the other said pump rod section and slidably mounted on the track, and means for sliding the sleeve on the track and moving the pump rod section to which said sleeve is connected to alter the stroke of the pump rod section carrying the sleeve.

2. In combination, a pump rod formed in sections, a track pivotally connected to one of said sections, a sleeve slidably mounted on the track, and pivotally connected to the other said pump rod section, and means for sliding the sleeve on the track and moving the pump rod section to which said sleeve is connected to alter the stroke of the pump rod section carrying the sleeve.

3. In combination, a sectional pump rod, a

track pivoted to one pump rod section, a support, means for pivotally connecting the track to the support, a sleeve slidably mounted on the track and pivotally connected to the other said pump rod section, a guide mounted on the track, guides mounted on the support, a drum, a rope connected to the sleeve and passing over the guide on the track and over one of the guides on the support to the drum, a second rope connected to the sleeve and passing over one of the guides on the support then to the drum, the movement of the drum operating the ropes and moving the sleeve and the pump rod section with which it is connected to alter the stroke of said pump rod.

4. In combination, a sectional pump rod, a support, a track having one end pivotally connected to a pump rod section and extending outwardly therefrom and bent upon itself and extending beyond the point of connection With the pump rod section, means for pivotally connecting the said extended end to the support, a sleeve slidably mounted on the track, and means for sliding the sleeve either side the point of connection of the pump rod section and the track and moving the pump rod section to Which said sleeve is connected.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing Witnesses.

FRANK S. LAFLIN.

Witnesses:

ADAIR PLEASANTS, C. R. HULsBRINK.