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Патент USA US2056679

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Üct» 6, 1935
2,056,679
J. F. LEHMAN
PORTABLE IRRIGATION GATE
Filed Sept. 16, 1935
FIHUlÜbh
8
INVENTOR
ATT O R N E Y
Patented Oct. 6, 1936
2,056,679
UNITED ASTATES PATENT OFFICE
2,056,679
PORTABLE IRRIGATION GATE
_
John' F. Lehman, Lodi, Calif.
Application September 16, 1935, Serial No. 40,743
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2 Claims. (Cl. 61-28)
This invention relates to portable irrigation from the backside of the plate I and .extending
gates adapted to control the ñow of water along from top to bottom of the same at right angles
an irrigation ditch or between a main ditch and thereto are rigid vertical íins 8, disposed inter
a lateral taking from the same.
mediate the sides of the opening 2 and the side
The principal objects of my invention are to edges of the plate I.
5
provide a gate of this character which is truly
In operation the gate unit is preferably carried
portable in that it is light and maybe easily car-` to the point of use with the conduit detached
ried from place to place by one man; one which from the outlet ñange, for convenience of ma
is suitable for use either crosswise or length»
nipulation. If the gate is to be used crosswise
wise of a ditch; one which may be easily put of the ditch the plate I is held transversely at 10
into place or removed and which can be left in the ditch at the desired point and after mounting
place as long as desired without deterioration the conduit in position said plate is depressed
or displacement; one so constructed that water into the -dirt at the sides and bottom of the ditch,
iiowing through the gate will have no erosive until the bottom of the conduit rests on the bot
action tending to dislodge the gate; one which tom of the ditch, as indicated in Figure 2. If l5
does not necessarily ñt the ditch (when used the water is already ilowing through the ditch
crosswise thereof) and which will still have a the gate may be left open while the plate I is
watertight ñt; and one which is self-supporting being depressed.
without having to be braced or rightly engaged
The conduit t serves two purposes. For one
by the dirt.
thing it conveys the Water past the plate I a' 20
A further object of the invention is to produce suñicient distance so that when the water re
a simple and inexpensive device and yet one enters the ditch the swirl caused by the relatively
which will be exceedingly effective for the pur
restricted iioW will not cause erosion of the walls
pose for which it is designed.
of the ditch near the plate, so that the dirt adja
These objects I accomplish by means of such cent the plate is not washed away to cause leak- 25
structure and relative arrangement of parts as age or dislodge the plate. In the second place
will fully appear by a perusal of the following the conduit serves to support the plate in a ver
specification and claims.
tical position against the pressure of water on
In the drawing similar characters of reference its up-stream face and which tends to cause the
indicate corresponding parts in the several views: plate to lean backwards, and the need of brac- 30
Figure 1 is a front View of my improved gate. ing the plate or wedging the- same tightly into
Figure '2 is a similar elevation of the same on the dirt to maintain its position is unnecessary.
the line 2-2 of Figure 1.
In the event that the width of the plate is ap
Figures 3 and 4 are diagrammatic plan views proximately that of the ditch so that there is
showing the gate as mounted lengthwise and danger of water leaking past the plate, the fins 8 35
crosswise respectively of a ditch.
provide brackets which may be packed with dirt
Referring now more particularly to the char
running inwardly from the sides of the ditch, as
acters of reference on the drawing, the gate com
indicated at 9 in Figure 4.
prises a substantially rectangular rigid metal
If the gate is to be used to control a ñow of
plate I whose dimensions are lsuch that it iS Water through a side cut to be made in the ditch, 40
higher and preferably somewhat wider than the the plate I is set in a vertical position adjacent
ditch in which it is to be used. The plate has said side of the ditch, with the shutter 3 closed
a Water passage opening 2 of suitable form cut and with the conduit 6 removed. The dirt behind
therein near the bottom and centrally of its the plate may then be scooped away as at S to
width. A hand operated shutter or gate plate 3 expose the opening through the ñange 5 Without 45
is disposed on the front or up stream side of the any leakage of water interfering with this op
plate I, being mounted on said plate for vertical eration, or washing away the dirt at the sides
movement by guide elements 4 engaging the side of the cut and making the same unduly large.
edges of the gate.
The ñns remain embedded in the wall of the ditch
A relatively short ñange 5 surrounds the open
to the sides of the scooped out area so as to rein- 50
ing 2 and extends from the back side of the force the dirt of said wall and prevent erosion and
plate I, said flange removably ñtting in the ad~ leaking of the water past the sides of the plate.
jacent end of a length of conduit 6 which is pro
After the dirt has been thus worked, the con
vided with a handle 'I on top whereby it can be duit may be slipped over the flange 5 and water
manipulated and carried about. Projecting passing through the same when the shutter 3 is 55
2
2,056,679
open will then be discharged into the correspond
ing lateral or parallel ditch at a sufñcient distance
from the gate to prevent erosion and washing
away of the dirt in contact with the plate and ñns.
The gate may also be used when it is desired to
cut the side of the ditch for flooding the adjacent
land, so as to control the flow through the cut.
From the foregoing description it will be read
ily seen that I have produced such a device as
10 substantially fulfills the objects of the invention
as set forth herein.
While this specification sets forth in detail the
present and preferred construction of the device,
still in practice such deviations from such detail
15 may be resorted to as do not form a departure
from the spirit of the invention, as defined by
the appended claims.
Having thus described my invention, what I
claim as new and useful and desire to secure by
20 Letters Patent is:
1. A portable irrigation gate including a verti
cal plate having an opening therethrough sub
stantially central of its width, a gate slidably
mounted on the upstream side of the plate to con
trol the opening, Vertical fins projecting from the
downstream side of the plate in spaced relation to
the sides of the opening, and a conduit registering
with the opening and projecting from the down
stream side of the plate to a termination beyond
the fins.
2. A portable irrigation gate including a verti 10
cal plate having an opening therethrough sub
stantially central of its width, a gate slidably
mounted on the upstream side of the plate to
control the opening, vertical ñns projecting from
the downstream side of the plate in spaced rela 15
tion to the sides of the opening, a flange shorter
in length than the horizontal extent of the ñns
projecting about the opening on the downstream
side of the plate, and a relatively long conduit
removably mounted on the flange.
JOHN F. LEHMAN,
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