US399747A

US399747A - Joseph edwards

Info

Publication number: US399747A
Authority: US
Publication date: 1889-03-19
Anticipated expiration: 1906-03-19

Description

(No Model.)

J. EDWARDS.

DRIVEN WELL HEAD.

No. 399,747 Patented Mar. 19, 1889.

be pumped.

rricn.

JOSEPH EDYV'ARDS, OF BROOKLYN, NEW YORK.

DRlVEN-WELL HEAD.

SPECIFICATION forming part of Letters Fatent No 399,747, dated March 19, 1889.

Application filed December 21, 1888. Serial No. 294,340. (No model.)

T0 to whom it 'ITLLLZ/ concern.-

Be it known that I, J OSEPH EDWARDS, a citizen of the United States, residing in the city of Brooklyn, count-y of Kings, and State of New York, have invented a new and useful Improvement in Driven Vv ell Heads, of

j which the following is a specification.

tains.

The object of my invention is to provide heads for such wells that will admit of their being placed on the surface of the lowest ground and allow the atmospheric pressure to come in contact with and act upon the water contained between the well-tube and suction-pipe, and at the same time exclude therefrom any and all surface and other impure water, which I attain by the device illustrated in the accompanying drawings, in which Figure 1 represents a transverse vertical section, showing the connection of the device with the well-tube and suction-pipe of the well; Fig. 2, a view on the line a: a: of Fig. 1, looking downward; and Fig. 3, a view on the line ,2 e of Fig. 1, looking downward.

Similarletters refer to similar parts throughout the several views.

A A represents the well-tube, and B B the suction-pipe of the well, which extends into the ground far enough to reach the water to Between the well-tube and suction-pipe is a space to allow external air to enter the well -tube, in order that atmospheric pressure may prevent the formation of a vacuum therein by the action of the pump in drawing water up through the suction-pipe. On the top of the well-tube A A (which is on the level of the ground) is screwed a heavy collar, O O.

E E E E is a pcculiarly-formed casting,

' water.

which I will call the well'head, and which is screwed upon the top of the suction-pipe B B, a portion of which consists of the elbow D, which makes the connection bet-ween the suction-pipe B B and the pipe that leads to the pump, the pipe leading to the pump being bolted to the flangcI I. On the side opposite to the mouth of the elbow D is cored out an air-passage, F, through a longitudinal projection or rib on the casting E E E E. At the top of this air-passage F is a lateral opening into which is screwed a union, e, and to the outer end of this union is screwed an elbow, 71, into which is screwed a pipe, H, which is to extend upward far enough to bring its upper end above the surface of any possible freshet- The casting E E E E extends in a tubular form above the elbow portion of the same, and is closed at its top with a heavy cap, G, by means of flange and bolts. From the lower side of this cap G projects downward a hollow stem, g, the bottom of which stem spreads out in the form of a circular concave disk or shield, s, standing at such an angle and placed in such a position that when the cap Gis bolted in its place the said. shield will form the top bend and surface of the elbow D, except at the bottom opening of the said stem g. The object of this disk or shield, forming the top of the elbow D and being a part of the cap G, is to provide for alarge direct passageway from the top of the wellhead down into the suction-pipe, to introduce a sand-shovel to remove the dirt and sand from the bottom of the well, wherein it accumulates occasionally. The opening in the upper end of the stem 9 is closed with a screwplug, g,which, if desired, can be removed for the purpose of attaching a test-gage.

The bottom end of the casting E E E E terminates with a flange, upon the face of which is fastened, within a circular groove, a thick flat bar or ring of rubber, c c, to form a transversely and vertically yielding air-tight fitting or union between the collar 0 on the welltube A A and suction-pipe B B. The flange that might otherwise be thrust into the joint of rubber an elastic or yielding joint is pro- 46 by freshet -water. It will be seen that by screwing the well-head E E E E on the suction-pipe it compresses the rubber union 0 0 between the lower flange of the well-head and the collar C O on the well-tube A A, which closes all communication between the outer air, water, and dirt and the space between the well-tube and suction-pipe, except through the pipe H and passage E, which said pipe H extends above all dirt and freshet water, whereby nothing can enter the well-tube except air.

The rubber ring, or rather partition, is not employed wholly or chiefly as packing for the purpose of forming an air-tight joint, as a tight rigid joint could be made by means of white lead or sheet lead or ordinary thin leather, or even thin rubber packing; but there is another and important object attained by the employment of a thick flat partition of rubber instead of ordinary rigid packing, and that is to provide a vertical and lateral elasticity to this union between the well-tube and suction-pipe. The necessity of this elastic union between these two parts arises from the fact that the water which is constantly drawn up through the suction -pipe B B from lower depths has a uniform even temperature at all times of the year, while the collar 0 O and the top portion of the welltube is submitted to a variety of tempera ture extending over a range of 100 Fahrenheit, which causes a great amount of ex pansion and contraction in the top portion of the well-tube and its collar 0 0, both laterally and vertically, while in the suction-pipe there is next to no contraction or expansion; but by the employment of the flat circular-bar vided which accommodates itself to this unequal expansion of the parts mentioned and prevents them from breaking or being dangerously strained by extreme changes of temperature. The expansion and contraction of the conveying-pipe which attaches to the elbow D also require a yielding connection between the well-head and the well-tube. There fore this yielding connection, attained by the rubber partition 0 c, is one of the important features of my improvement, especially in its application to the larger-sized wells.

I am aware of a patent, numbered 311,024, granted to F. WV. Miller, January 20, 1885, which provides for two flanges, one being secured to the suction-pipe and the other to the well-tube, leaving a space between them for the passage of air into the well-tube, but which is also subject to the inflowing of freshet-water and other obstructions and impurities.

Having described the various parts and general construction of my device and the operation thereof, what I claim as new and useful, and desire to secure by Letters Patent, is

In pipe-Wells, the combination of the welltube A A, suction-pipe B B, and well-head E E E E, having the elbow D and the air-passage F, and the pipe H, whereby outer air is admitted to flow in between the said well-tube and suctionpipe at any necessary elevation above the top of the said well-tube to keep out therefrom all surface-water and other impurities, substantially in the manner and for the purpose set forth.

JOSEPH EDWARDS.

Witnesses:

FRANK R. J OHNSON, HUNTINGTON PAGE.