US180057A - Improvement in chain-pump buckets - Google Patents

Description

UNITED ST TES WVILLIAM PEOKHAM, OF POPLAR RIDGE, NEW YORK, ASSIGNOR OF ONE- Parana FFEGE.

HALF HIS RIGHT TO JONATHAN '1 PROUD, OF SAME PLACE.

IMPROVEMENT IN CH AiN PU P BUCKETS.

Specification forming part of Letters Patent No. 180,057, dated July 18, 1876; application filed May 27,1876.

pump buckets which are constructed with solid metallic centers and elastic disks or washers, whereby the tube of the pump is entirely closed by said bucket, and no escape of water permitted, except through a waste-hole through the bucket. This waste-hole is constantly open and wasting water while the pump is in action, and the expenditure of power in excess is proportionate to thequantity' of water escaping through said waste.

The principal object of my invention is to obviate this waste, and still provide an escape at each bucket, under control of the operator; and to that end it consists, first, in an elastic disk provided with one or more orifices, which are closed by themetallic shackle-plate when the bucket is in operation-that is to say,-

moving upward-and its edges bentdownward by contact with the surface of'the pump-tube, whereby said metallic shackle-plate operates as a valve to closesaid orifices while the pumpbucket is moving upward, and open the same when said bucket moves downward; second, in a radiallyribbed elastic packing-disk, whereby a sufficient thickness for strength and stiffness is obtained without an undesirable thickness at the orifices above named; third, in peripheral notches in the elastic disk, whereby the flexibility of the edge of the same may be increased at will without making said edges so thin as'to become frail.

That others may more fully understand my invention, I will particularly describe the structure of it which I prefer.

A is the metallic shackle attached to the chain B. This shackle is constructed with a convex plate, a, and a neck, b, surmounted with a head, a. The disk or plate a forms a seat for ,the elastic packing-disk D, which has a central hole, and is forced over the head rection, as shown in Fig. 3, so that while the buckets are moving upward no escape is afforded for the water being carried upward by them, nor will it escape if the buckets come to a state of rest without moving downward; but

it' they are permitted to move downward a very little, the edges of the disks D will be thereby turned upward, as in Fig. 3, and the holes d be thereby uncovered, and the'con'- tained water will escape freely.-

This is the simplest form of valve controllable by the operator, and it is therefore preferred; but I do not desire to be limited thereto. 7

The radial ribs or projections e stiffen the disk D toward its periphery, and thus prevent its yid ling too readily to a downward movement,-so that the friction of the disks,pr0- duced or increased by the presence of said ribs, obviates the necessity for a back ratchet and pawl, as commonly used, to prevent a backward movement of the buckets. The lower edge of the periphery of the disk A has a greater or less number of notches, a, to decrease friction, and these notches may beas many as circumstances may require. They decrease friction by rendering the edge flexible; but while flexibility is increased, the edge is not made thin'and weak and liable to be torn or broken, and they do not permit any escape of water from above them.

When water is being drawn, the chain B and its buckets, attached as shown, are drawn upward through the tube T, the lower end of which is submerged in the water at the bottom of the well, and as each succeeding bucket enters the lower end of said tube, it cuts off the escape of water then in said tube, and forces it to move upward in advance of the buckuntil it escapes at the upper end of the tube. ien then p ward motion of the bncketsceases, 2 tube will be full of water, which must be 'mitted to escape again, or it will be liable freeze in cold weather and burst the tube. Eleretoi'ore this escape has been efl'ected by sely fitting buckets, or by small permantly open escape-holes in the buckets. These rmit a constant escape while the water is ing elevated, as well as when the buckets at rest, and require a corresponding inzase of power.

My bucket fits perfectly tight when it is wing upward, and permits 'no escape; but e operator can at any moment arrest the -ward movement, and cause the escape-valve each bucket to open and discharge the war above it. Having described my invention, what I claim new 1's-- 1. A chain-pump bucket composed of a etallic shackle combined with an elastic ina-rnbber disk, provided with cscapevalves, hich are automatically opened by a downard movement of said bucket, substantially 'wSGiT forth.

2. A chain-pump bucket composed of a metallic shackle, A, having the convex disk at, and neck I), combined with an elastic disk, D, provided with holes 61 d, substantially as set forth.

A chain pump packiug-disk, D, constructforth.

' WILLIAM PEOKHAM.

Witnesses:

DANIEL W. PEGKHAM, Anson UULVER.

.ed with ribs 6, and combined with a metallic with a packing-

Images