US863938A - Water-hoisting apparatus. - Google Patents

Description

No. 863,983. I PATENTED AUG. 20, 1907.

J. 0. NORVILLE.

WATER HOISTING APPARATUS.

APPLICATION nun OOT. 29.1906.

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No. 863,938. PATBNTBD AUG. 20, 1907. J. G. NORVILLE. WATER HOISTING'APPARATUS.

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JOHN G. NORVILLE, OF RUTHERF'ORDTON, NORTH CAROLINA.

WATER-HOISTING APPARATUS.

Application filed October 29,

To all whom it may concern:

Be it known that I, JOHN C. NORVILLE, a citizen of the United States, residing at Rutherfordton, in the county of Rutherford, State of North Carolina, have invented certain new and useful Improvements in Water-Hoisting Apparatus, of which the following is a description, reference being had to the accompanying drawing, and to the letters and figures of, reference marked thereon.

My invention relates to water hoisting apparatus, and especially to that class known as Windlass water elevators, in which two alternately operating buckets are employed, one of which rises as the other descends.

As usually constructed, these devices comprise a windlass or drum pulley at the top of the structure surrounding the well, the elevating rope with a bucket at each end running over the same, the pulley, Windlass or drum being provided with a crank by turning which in one direction the pulley is rotated, elevating one bucket and lowering the other, and then rotating the crank in the opposite direction so as to reverse the Specification of Letters Patent.

operation.

One of the features of my invention is to provide alternately acting pawls engaging teeth on the face of the pulley, one of which engages the teeth while the pulley is rotating in one direction and prevents one bucket from dropping back if the crank is released, while the other pawl has a similar action on the other bucket, while the crank is rotating in the opposite direction; and I have provided an automatic means for shifting the pawls respectively into operative and inoperative position, according as the crank is turned in one direction or another, this shift being accomplished by a pin on the crank shaft engaging a cam groove on a sliding sleeve which swings a pivoted lever engaging at its opposite end a swinging plate carrying the spring pawls.

Another feature of the invention resides in the water receptacle extending across the well structure, having openings for the passage of the buckets, and having a discharge spout, and adapted to hold a certain amount of water with a valve controlling the discharge spout, whereby when a person desires to get only a limited amount, he may open the valve and draw off a quantity from the receptacle, without necessitating the use of the hoist.

Another feature of the invention consists in the construction of the bucket, the same being formed with the upper face on an incline, so that when it strikes the top of the well structure, it will swing until the top edge is flat against the under side of the well top, thus causing the lower end or spout therein to swing over the water receptacle or annular water passage, and prevent the water flowing back into the well.

I have also provided in the water receptacle a deflect ing plate to prevent the water from one bucket splash- Patented Aug. 20, 1907. 1906. Serial No. 341,068.

ing over into the opening of the other bucket, and escaping back into the well, and means for automatically opening the valve in the bucket to permit the escape of water when the bucket has reached its highest point.

Finally, my invention includes the various features hereinafter described and referred to in the appended claims.

My invention is illustrated in the accompanying drawings, in which Figure 1 is a front elevation partly in section; Fig. 2 is a top plan view partly in section; Fig. 3 is a side view of the pawls and supporting plate, part of the well structure being shown in section; Fig. 4 is a plan view of the partition or water receptacle; and Figs. 5, 6 and 7 are detail views of the pawl-operating mechanism.

In these drawings, A represents the housing or well structure, which may be of wood, metal or any suitable material, and of any suitable form.

B represents the buckets, of which two are shown, attached to opposite ends of the rope running over the Windlass or pulley O, which is grooved to receive the rope, and has the notches into which the wet rope will expand and thus prevent slipping.

D is a partition secured in the interior of the housing, having openings to allow the buckets to pass through, the edges being turned upwardly to form a water receptacle, provided with a discharge spout controlled by a valve 6 having a handlef. The said water receptacle D has a pivoted deflecting plate 9 to prevent the water from one bucket splashing over into the opening of the other bucket and escaping back into the well.

The buckets B are of special construction, each having its upper face d formed on an incline, so that when elevated by striking against the under side of the top of the housing, it will tilt as shown in Fig. l, to bring the spout a of the bucket over the water receptacle.

The bucket valve b is automatically opened by the upper end of its rod 0, striking against the partition D, this being so arranged that the valve will not fully open to let out the water until the bucket has been tilted to proper position.

The winding pulley is provided with internal ratchet teeth 15. The pulley is carried by a shaft G, mounted in suitable bearings at the upper portion of the housing and provided with a handled operating crank F. One of these hearings is carried by a plate 1 from the lower portion of which projects a pin 5, that forms a pivotal support for a plate 2. The plate 2 has two pins 7 on which are pivoted independently acting pawls 6, which may engage the teeth 15, the pawls acting one to lock the pulley from rotative movement in one direction, and the other to prevent movement in the opposite direction. The pawls are pressed outward by springs 8 and their outer faces are engaged by shifting pins 8, carried by and projecting from the plate 2.

The upper edge of the plate is curved, and is provided with a notch 3 for the reception of one .arm of a bell crank lever 4, pivoted at any convenient point on the fixed housing. The opposite arm of the bell crank lever is bifurcated, and fits in a grooved sleeve 10, that is slidably mounted on the shaft G. To the sleeve 10 is connected the hub 11, of the pulley, this hub having a cam groove 12 for the reception of a pin 13, projecting from the shaft.

When the shaft is rotated in one direction, the pin traveling in the cam groove moves the shaft endwise, and this movement is transmitted through the sleeve 10 and bell crank lever to plate 2. One or other oi the pins 8 will then move one of the pawls 6 away from the ratchet teeth 0 while the other pawl is pressed into engagement therewith by means of its spring. The shifting of the pawls is automatic, and no matter which direction the pulley is turned, it will be locked from accidental reverse movement. 1

It is to be noted that the pulley is loose on the shaft, and that the pin 13, by engagement with the end walls of slot 12 serves to transmit movement from the shaft to the pulley.

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

1. In a water hoisting apparatus, a housing, a shaft having bearings therein, a hoisting pulley mounted on the shaft and having ratchet teeth, a hoisting cable on said pulley, buckets secured to the opposite ends of the cablev the pulley being revoluble alternately in opposite directions to raise and lower the buckets, a pair of alternately operativepawls for engaging the ratchet teeth, and means under the control of the shaft for moving one or other of the pawls to operative position in accordance with the direction in which the shaft is turned.

2. In a water hoisting apparatus, a housing, a shaft having bearings therein, a hoisting pulley mounted on the shaft and having ratchet teeth, a hoisting cable on said pulley, buckets secured to the opposite ends of the cable, the pulley being revoluble alternately in opposite directions to raise and lower the buckets, a pair of alternately operative pawls for engaging the ratchet teeth, a pivoted carrying plate for said pawls, and a plate-actuating cam operable by preliminary turning of the shaft for shifting said pawls.

3. In a water hoisting apparatus, a housing, a shaft having bearings therein, a hoisting pulley mounted on the shaft and having ratchet teeth, a hoisting cable on said pulley, buckets secured to the opposite ends of the cable, the pulley being revoluble alternately in opposite directions to raise and lower the buckets, a pair of alternately operative pawls for engaging the ratchet teeth, a pivoted carrying plate for said pawls, a bell crank lever having one arm engaging the plate, a sleeve mounted on the shaft and movable endwise with said shaft independent of the pulley, and a pin projecting from the shaft, the hub of the pulley having a cam slot for the reception of the end of the shaft to insure endwise movement of the shaft.

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

JOHN C. NORVILLE.

Witnesses A. M. lamcms,

G. P. BIIERFTOX.

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