US2250906A - Irrigation gate - Google Patents

Description

July 29, 1941.

C. CRAMER IRRIGATION GATE Filed Sept. 17. 1940 2 Sheets-Sheet 1 July 29, 1941. Q CRAMER 2,250,906

IRRIGATION GATE Filed Sept. 17, 1940 2 Sheets-Sheet 2 Patented July 29, 1941 UNITED STATES T OFFICE 2 Claims.

This invention relates to an irrigation gate and has relation more particularly to a gate of this kind comprising a nonrising stem, and it is an object of the invention to provide a gate which is especially designed and adapted for use with a pipe line or underground irrigation system.

It is also an object of the invention to provide a gate of this kind including a ring to assure a perfect cement job in pipe line work and to which ring is adapted to be bolted or otherwise secured the gate frame.

Another object of the invention is to provide a gate of this kind wherein the side rails for the cross arm are detachably secured to the frame thereby materially facilitating repair incident to the breakage of a rail.

The invention also has for an object to provide a gate of this kind including a cross arm and a shutter together with means whereby may be readily effected and maintained an adjustment of the shutter with respect to the cross arm to assure efiective seating of the shutter with respect to the frame of the gate.

The invention has for a further object to provide a gate of this kind wherein the cross arm for the shutter is provided with a part for coaction with the frame of the gate to positively limit the downward or closing movement of the shutter and particularly to prevent the shutter closing past center.

The invention consists in the details of construction and in the combination and arrangement of the several parts of my improved irrigation gate whereby certain important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for use, as will be hereinafter more fully set forth.

The novel features of my invention will hereinafter be definitely claimed.

In order that my invention may be the better understood, I will now proceed to describe the same with reference to the accompanying drawings, wherein:

Figure 1 is a view in elevation of an irrigation gate constructed in accordance with an embodiment of my invention;

Figure 2' is a fragmentary detailed sectional view taken substantially on the line 2-2 of Figure 1 looking in the direction of the arrows;

Figure 3 is a vertical sectional view taken through the structure as illustrated in Figure 1 with certain of the parts in elevation;

Figure 4 is a sectional view taken substantially also provided with an opening portion of a nonrising stem on the line 4-4 of Figure 3 looking in the direction of the arrows.

As disclosed in the accompanying drawings, I denotes a frame preferably of cast iron and annular in form with its lower portion slightly deeper than its upper portion and with the outer edge face of the frame machined whereby is provided a watertight wedge seat.

Butting the rear edge face of the frame I is an annular member or ring 2.- This ring 2 is adapted to be embedded in the cement work with which a gate of this type is generally employed and this ring 2 is adapted to fit inside of the pipe line. At desired points therearound thering 2 has formed therewith the lugs 3 each of which is of a length to extend a distancewithin the adjacent portion of the frame I. Coacting with each of these lugs 3 and the ring 2 is a holding bolt 4 and its associated nut 5 whereby the ring 2 and the frame I are effectively held in assembled relation.

The uppermost portion of the frame I is formed to provide an upstanding table 6, the top face of which is flat. Resting from above upon this upper flat face'of the table 6 is the lower face of a skeletonizedcenter rail or column I. This center rail or column I is rigidly secured to the table 6 by the headed members 8 disposed through the bottom cross member a of the center rail or column I and threading into the table 6.

The center rail or column I, as herein disclosed, is tapered from its lower end to its upper end and at its upper end said center rail or column I is provided with a crown plate or table 9 having a central opening It]. The bottom cross member a of the rail or column I in its central portion is II aligning with the opening I0. This opening II rotatably receives atrunnion I2 extending from the lower end I4. The upper part I5 of the stem I4 has its periphery smooth and unobstructed and this portion I5 extends upwardly through the opening I0 and terminates a desired distance above the crown plate or table 9. The portion I5 above the crown plate or table 9 extends within the lower portion of an elongated collar I6, the lower end of which is in direct contact from above with the upper surface of the crown plate or table 9. The collar I6 is securely anchored to the portion I5 by a tie bolt I'I' or otherwise as may be preferred. The lower end of the collar I6 is defined by an outstanding surrounding fiange I8 which is snugly received within the gland plate I9 bolted, as at 20, or otherwise securely anchored to the crown plate or table 9. As'is clearly illustrated in Figure 3, thecollar I6 is also freely disposed through this gland plate l9. The gland plate l9 coacts with the flange W of the collar Hi to provide an effective mounting for the upper portion of the stem l4 yet permitting said stem M to freely rotate.

The upper 01 top portion of the collar l6 provides a socket to receive the lower end portion of a shank 2| of desired length and which shank 2| is bolted, as at 22, or otherwise effectively locked to the collar I6. The outer extremity of the shank 2| has keyed, as at 23, or otherwise secured thereto an operating member 24 herein disclosed as of a wheel type whereby the stem l4 can be manually rotated as desired.

The frame at opposite sides thereof has formed therewith outstanding brackets 25.

These brackets 25, as illustrated in Figure 1 of the drawings, are horizontally aligned and each of the brackets is formed to provide the vertically spaced barrels 26, the bores of which are substantially parallel to the axial center of the frame I. Registering or aligning with the barrels 26 of each of the brackets 25 are the spaced barrels 21 carried by the lower portion of a side rail 3' 28. Disposed through these registering or aligned barrels 26 and 21 are the elongated headed shank 29 with which are associated the holding nuts 30 whereby the rail 28 is effectively held in working position but in a manner whereby it can be I? readily removed for replacement or any other purpose required. This is of decided advantage because if from resultant breakage or any other cause it is necessary to replace a rail 28, it can be readily done without taking down the frame I.

The opposed faces of the side rails 28 from end to end are provided with the guide grooves .or slots 3| in which are received inwardly offset tongues 32 provided at the opposite end portions of the horizontal or bottom member 33 of the cross arm C. This member 33 midway its ends is provided with an opening 34 through which is directed from within an elongated threaded shank 35. Mounted on this shank 35 at opposite sides of the member 33 are the holding or clamping nuts 36. These nuts 36 provide means whereby the cross arm C may be selectively adjusted lengthwise of the shank 35 for a purpose to be hereinafter more particularly referred to.

The shank 35 is also disposed inwardly through the axial center of a shutter 31. This shutter 31 is preferably of cast iron and is of such dimensions as to permit the inner face of its peripheral portion to tightly engage the outer seat face of the frame I. To further assure a watertight seating of the shutter 31, the inner face thereof at its periphery is also machined. The outer face of the shutter 31 is slightly crowned and provided with the radial ribs 38 to give added strength to the shutter. It is also to be noted that the member 33 of the cross arm 0 is arched to assure the allowance of a space between the center portion of the member 33 "and the central portion of the shutter 31 to receive the inner nut 36 and the holding or jamb nut 39 threaded on the shank 35. The jamb nut 39 contacts with the adjacent outer face portion of the shutter 31 and coacts with the head 40 at the inner end of the shank 35 to effectively anchor the shank 35 to the shutter 31.

The member 33 of the cross arm C at its central part is provided with an upstanding post 4| of a length to extend above the upper or high point of the frame I. The upper portion of this 1 post 4| is inwardly disposed, as at 42. The free end of this portion or part 42 is transversely enlarged as particularly illustrated in Figures 1 and 2 and to the outer end of this portion 42 is bolted, as at 43, or otherwise securely anchored thereto a nut 44 which threads upon the stem I4. It is to be pointed out that the nut 4 is detachably engaged with the portion or part 42 of the post 4| which provides for convenient and quick assembly of the gate. This nut 44 also serves as a stop for contact from above with the bottom cross member a of the column 1, and the post 4| is of such length that the contact of the nut 44 with the cross member a will prevent the shutter 31 closing beyond center.

It is believed to be apparent that upon desired rotation of the stem l4 the shutter 31 will be moved into either open or closed position with respect to the frame I and in order to assure the most effective closing of the shutter 31 the nuts 36 may be manipulated to secure and maintain the required selective adjustment of. the shutter 31 with respect to the adjacent end. of the frame I.

From the foregoing description it is thought to be obvious that an irrigation gate constructed in accordance with my invention is particularly well adapted for use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that my invention is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not wish to be understood as limiting myself to the precise arrangement and formation of the several parts herein shown in carrying out my invention in practiceexcept as hereinafter claimed.

I claim:

1. An irrigation gate comprising a frame, an upstanding column for the frame, means for detachably securing the column to the frame, a shutter for movement into open or closed position with respect to the frame, a cross arm, means for connecting the cross arm and shutter for unitary movement, side rails carried by the frame, said cross arm having a member interposed between and engaging the side rails, said cross arm having an outstanding post terminating above the top portion of the frame, a nut, means for detachably connecting said nut to the upper portion of the post, a stem rotatably supported by the .column and upon which the nut threads, and means for. rotating the stem.

2. An irrigation gate comprising a frame, an upstanding column for the frame, means for detachably securing the column to the frame, a shutter for movement into open or closed position with respect to the frame, a cross arm, means for connecting the cross arm and shutter for unitary movement, side rails carried by the frame, said cross arm having a member interposed between and engaging the side rails, said cross arm having an outstanding post terminating above the top portion of the frame, a nut, means for detachably connecting said nut to the upper portion of the post, a stem rotatably supported by the column and upon which the nut threads, and means for rotating the stem, the column having 'a part with which the nut contacts when the cross arm and shutter are moved into closing direction to limit the closing move- ;nent of the shutter beyond the center of the rame. r

' CAMPBELL CRAMER.

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