US152407A - Improvement in self-adjusting pumps for windmills - Google Patents

Description

l. H. PALMER. Self-Adjusting Pumps forW,ind- Mil;ls. v?No.l52 ,407.

Patented June 23,1874.

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UNITED STATES ISAAC H. PALMER, OF LODI, VVISGONSIN.

IMPROVEMENT IN SELF-ADJUSTING PUMPS FOR WINDNIILLS.

Specification forming part of Letters Patent No. 152,407, dated June 23, 1574; application filed April 30, 1874.

To all ywhom it may concern:

Beit known that I, IsAAc HL PALMER, of Lodi, in the county of Columbia and State of Wisconsin, have invented a new and Improved SelfAdjustingPump for lVindmills; and I do hereby declare the following to be a full and exact description of the same, reference being had to the accompanying drawings forming part of this specification, in which- Figure l is a side elevation of my invention, showing the hand-lever or pump-brake disconnected from the pump-plunger, and the latter in connection with the conn ing-rod or pitman of a windmill; and Fig. 2 a similar View showing the hand-lever or brake applied to the plunger, and the windmill-pitman disconnected.

Similar letters of reference in the accompa nyin g drawings denote the same parts.

This invention relates to that class of pumps operated by windmill or other power, in which the plunger is adapted to be disconnected from the means used for applying such power for the purpose of working the pump by hand. It is often necessary to operate a windmillpump when there is no wind, or not enough to give the requisite motion to the plunger, and to this end it is usual to withdraw the pin connecting the pump-plunger and pitman or shaft of the windmill, adjust a hand-lever or pump-brake to the plunger by inserting a pin through both, and after pumping the desired quantity of water by hand, to readjust the windmill shaft. The windmill-shaft is frequently moved by a light breeze not sufficient to operate the pump, thus rendering this operation difcult to perform, as the plunger and Ashaft can only be coupled by the pin when their pin-holes register. lily invention has for its object to provide means for automatically disconnecting the pump plunger from the windmill-shaft when the hand lever or brake is applied, and readjusting the shaft when said brake is removed. To this end it consists mainly in a spring-catch on the windmill-shaft, adapted to engage with notches or recesses on the pump plunger, in combination with a swinging fulcrum to which the hand-lever or brake is pivoted, said fulcrum being adapted, when swung inward toward the plunger, to engage the brake with a suitable stud or pin on the plunger, and at the same time to press against the spring-catch and force the latter away from the plunger, thereby disconnecting the pump and windmill, the spring being held in this position as long as the hand-lever and plunger are connected, and returning antomatically to engage with the plunger when the hand-lever is removed. It consists also in the peculiar construction of the hand-level', all of which I will now proceed to describe.

In the drawings, A represents the pump plunger, and B the vertical shaft or pitman of the windmill, the latter having a vertical spring, G, and a hollow sleeve or socket, D, on its lower end, adapted to receive the upper end ofthe plunger A. The spring G is provided with a tooth or catch, E, projecting inward, and adapted to pass through a slot in the lower end of socket I), and engage with one of a series of recesses, F, in the plunger A, as shown in Fig. l, the spring being held in this position by its own elasticity, the shaft and plunger being thus connected and adapted to reciprocate together when the windmill is in operation. G represents a hand-lever co1n posed of two parts, g g1, pivoted to each other and to a swinging standard, H, by a bolt or rivet, I. The part g of the lever G is provided with a slot or recess, J, in its inner end,whilc the part g1 is beveled on its lower side, and provided with a toe or projection, g2, which closes the end of the slot J when in the posi tion shown in Fig. 2. The standard H is located on the opposite side ofthe plunger from the spring C, and is pivoted at its lower end to the side of the pump, and has an arm, H', at itsl upper end, which projects toward the spring' C, said arm being preferably bifurcated, and inclosing the plunger A. Then the standard H and lever Gr are swung back, as shown in Fig. l, the shaft B and plunger A are adapted to work together. In case, however, the windmill is at rest, or moving so slightly as to be inoperative, and it is desirable to pump a small quantity of water, the part g of lever G is grasped by the operator and pushed toward the plunger untils its slot J engages with a stud7 L, on the plunger. The part g1 is then turned so as to cause its beveled under surface to bear on the stud L, its toe g2 closing the end of the recess, as shown in Fig. 2. When the lever and standard are swung inward, as above mentioned, the arm ll" comes in contact with the spring G and forces the latter out rard, so that its tooth or catch E becomes disengaged from the plunger A, thereby adapting the plunger to be operated solely b v the lever Gr, the operation that connects the pump-plunger and hand-lever disconnecting the plunger and Windmill-shaft. The standard and lever being Withdrawn, as shown in Fig. l, the spring returns to its former position by its own elasticity, and the shaft and plunger are again connected. The part q ofthe lever Gr may be bifurcated, so as to inelose the plunger, and has a stop, fi, which restricts the downward movement of the part g1. rlhe toc ofthe latter prevents'the lever from being disengaged from the plunger when in operation.

I claim as my inventionl. The shaft B, having the socket D and spring C, with its tooth E, in combination with the pui'np-plunger A, having the recesses F, and the angular pivoted standard H of the lever G, all arranged and operated substantially as and for the purpose specified.

2. A handlever for pumps, pivoted to a Swingin g standard, and adapted to be engaged with or disconnected from the pump-plunger, by swinging said standard, substantialbT as described.

8. The lever G, composed of the pivoted parts g g1, having the recess J and toe y2, in combination with the swinging standard H, substantially as described, for the purpose specified.

ISAAC H. PALMER.

Witnesses: J. M. BARTHOLOMEW, MARVIN GossErT.

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