US1279857A - Irrigation-valve. - Google Patents

Description

E. GIBSON.

IRRIGATION VALVE.

APPLICATION FILED .IAN.-30. I917.

1,279,857. I Patented Sept. 24,1918.

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UNITED STATES; PATENT. OFFICE. f v

I EDWARD GIBSON, 0F JERSEY CITY, NEW JERSEY.

IRRIGATION-VALVE.

To all whom it may concern:

Be it known that I, EDWARD GIBSON, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented a certain new and useful Improvement in Irrigation- Valves, of which the following is a specifiacation.

In irrigation as now extensively practised, water usually at very low pressure is brought to the field in underground conduits, com monly of vitrified or cement pipes, which are provided with stands or risers at suitable intervals, surmounted by valve casings having a branch or branches through which the field may be flooded or which may be furtherbranched or subdivided for delivering water to the irrigation furrows or channels. It is obvious that in installing a plant of this character the expense of the devices employed mustbe extremely low to permit op erationat a profit, and the valves and other accessories employed must be obtainable at the least possible outlay] The object of this invention is to provide a controlling valve adapted to be connected to the riser, which I can be manufactured at a minimum cost, is

easily installed and operated by relatively unskilled labor, is adaptable to varying requirements and conditions, readily repaired if broken, and which will serve efiiciently and reliably under all the conditions of serv-:

ice to which it isnecessarily subjected.

The invention consists in certain novel features and details of construction and arrangement by which the above objects are attained, to be hereinafter described and claimed.

The accompanying drawings form a part of this specification and show the invention.

as it has been carried out in practice.

Figural-is a plan view of a valve. and its lateral branches and connections arranged for furrow irrigation.

Fig. 2 is a corresponding elevation, partly in vertical section, showing the attachment to the conduit riser.

The succeeding figures are on a larger scale and show the valve alone or with its immediate connections.

Fig. 3 is a side elevation.

Fig. 4 is a corresponding end view.

Fig. 5 is a vertical section taken on the line 55 in Fig. 4.

flanges or lugs G C Specification of Letters Patent. Patented Sept, 24, 1918; Application filed January 30, 1917.

Serial No. 145,353.

Similar letters of reference indicate like parts in all the figures.

'A is a conduit which may be understood to be connected lengths of concrete pipe of large diameter, laid below the frost line, and 7,

A is a riser or vertical outlet extending to or above the surface of the ground, supported and protected by a mass. ofconcrete A and surmounted by the improved valve. The valve-casing comprises a cover B, a body C,.and a base D, each a thin casting formed independently, and separably j oined'.

together. The base isa flat annulus having an annular depending flange D on its under face adapted to encircle the upper end of the riser A and secured thereto by cement a introduced in the annular space between the overhanging flange and riser, The base D also an inner upwardly presented annular 11p D serving as the valve-seat, and is equipped at thev outer margin with four or other number ofeyes D cast integrally with the base for receiving the hooked ends F of rods F by which the parts of the valvecasing are joined. 1

. The body C is a thin cylindrical casting, slightly swelled outwardly to increase its strength, and has in the principal form shown, two oppositely extending nozzles or lateral outlets C C each having spiral their ends.

B is the cover comprising a thin circular oppositely located on p hollow bossB and four or other number of peripheral bifurcated radial lugs B B corresponding to and located above the eyes D onthe base D. i

E is the. thinly cast valve-disk or plate slightly domed centrally to match to the ,upward swell of the cover B to lie closely adjacent to the latter when fully elevated so as to aiford an unobstructed flow through 'the valve-casing, and having on the under faceofits rim two concentric ribs-or ridges :E E forming between them a shallow groove in which is secured an annular gasket E serving to make a tight oint with the valveseat I) when the disk is forced into contact therewith. The disk has a hollow boss E on its under face forming a recess 6 in which is received a flange G on the extreme lower end of a screw G; this flange is loosely engaged, with liberty for the screw to rotate, by an annular plate E matching to the mouth of the recess and slipped upon the screw from the opposite end. It is held in latterto rise or sink therein by theengagement of its threads with corresponding internal threads produced by pouring melted lead into the'recess b in the boss B around thes'ame or a, similar screw, treated to avoid adherence of the leadthereto, and thus forming nut B in'the cover. At the upper end the screw is squared as at G and after.

the applicationof the plate E thereon, is fitted into a correspondingly squared hole in the'central boss G" of a handwheel G by whichthe screw may be turned in the lead nut B 'and the valve-disk E moved, verti cally relativelyto its seat'D i' The wheel is fixed on thes'crew by peening theprotrud ing end of the square G I V In assembling the parts a gasket H is interposed between the base and body and a similar gasket H between the body and cover, and the latter applied with the screw and valvedisl'r attached thereto; the hooks of the rods F are then engaged in the eyes D l) on the base and the rods inserted'in the bifurcations or notches of thelugs B B and the parts are, then drawn strongly together to'produce water tight'joints by turning down the nuts F F on the screwthreaded n1 per ends of the rodsinto strong contact with the upper faces ofthe lugs. 1

'J J are thimbles adapted to be inserted one into each nozzle C and having each an annular flange J arranged to apply against a gaslret'H 'betw'eeii such flange and the rimof its nozzle. The thimble is drawn intowvater tight contact by a ring K encirclingth'e thimble on the outer face of the flange J and having oppositely placed hooked arms or dogs K K adapted to engagethe spiral lugs C C on the nozzle by a turning movement and thus draw the flange J and itsigasket H into strong contact with the rim of the nozzle. Each thim- .ble J, as shown, is slightly tapered and receives one end of a flexible sleeve or hose L, the other end being attached to a branch M from which extend the valve-nozzles having valves 'not shown, operated by the valveor longer By making the cover, with. its attached valve-disk, and the body and base separable,., these parts may be used interchangeably and a broken part replaced from stock. Another advantageof this construction is in permittingbodies of the same diameter but greater height to be substituted when required. Fig? 8 shows one form of an alternative body C having a single large nozzle C on one side, adapte'dto receive a corresponding large thimbleand branch, not shown, through which an unrestricted flow may escape for flooding the lield when that system of irrigation is to be practised, The screw G is of suflicient length to permit such substitution,

and the rods F may be similarly lengthened ones employedasmay be pre ferred. The flange D of the base may be threaded or otherwise formed to be screwed or' otherwise attached to a correspondingly shaped riser, and other means, as for example an, arrangement of spiral lugs 01.

flanges and corresponding engaging dogs" similar to the means shown for j oiningthe thimbles to the nozzles, may be employedin separably joining the body to its base and cover.

' The screw is preferably cast, for economy in'manufacture, and its attachment to the;

valve-disk is simple and inexpensive as is also the lead nut connection to the cover,

. iron. The plate E loosely joining the screw to the valve-disk is preferably .of brass to avoid liability of forming a rust joint at" this. point. i

The th'i'mbles J are shown as thin castings and may be of aluminum, but they may be of galvanized sheet iron with the flange J cast directly thereon or otherwise attached or they may be formed of sheet metal by suitable dies. 1

The body may be a plain cylinderand the cover and valve-disk flat plates having strengthening ribs to reinforce them.

By constructing the ring K with engaging dogs at diametrically opposite points, and by providing ridges onfthe inner face of the ring intermediate the dogs and opposite each other, the thimble J is drawn into watertight contact with the nozzle C and the pressure distributed equally at all points on the face even though the castings may be slightly irregular.

The cover and base may be used with a body having largeror smaller openings than here shown, or there may be a greater or less number of such openings to be used as may be determined by conditions in the field and adapted to conform to changes in methods of irrigation corresponding to rotation of crops.

I claim l. The irrigation valve described, comprising a body, a base, and a cover, each a thin casting formed independently, a valveseat integral with said base, a valve-disk within said body and arranged to coact with said seat, a screw connected to said valvedisk with liberty to rotate relatively thereto and engaged in said cover, said body swelled outwardly and said cover and valve-disk domed, and means for separably joining said body, base, and cover with said body clamped between said base and cover to form a valve-casing.

2. In a valve of the character set forth, a base havinga valve-seat, a body, a valvedisk within said body and arranged to coact with said seat, a cover having atrecess,

In testimony that I claim the invention above set forth I afiix my signature.

' EDWARD GIBSON.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of IPs/cents,

Washington, D. 0..

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