Portable Irrigation System. Page: 2 of 4
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UNITED STATES PATENT OFFICE.
HARRY T. LIBBY, OF ALVIN, TEXAS.
PORTABLE IRRIGATION SYSTEM.1,187,349.
Specification of Letters Patent. Patented June 13, 1916.
Application filed December 16, 1912, Serial No. 736,967. Renewed May 6, 1916. Serial No. 95,970.
To all whom it may concern:
Be it known that I, HARRY T. LIBBY, a
citizen of the United States, and a resident
o-f Alvin, in the county of Brazoria and
5 State of Texas, have invented certain new
and useful Improvements in Portable Irri-
gation Systems, of which the following is a
specification.
My invention relates to portable irrigation
1o systems-that is to irrigation systems which
comprise a maximum proportion of movable
-parts so that the system as a whole may be
readily picked up and moved from one part
of afield or orchard to another part thereof
15 while at the same time the various movable
parts may be shifted relatively to each other
while the system is in use for the purpose
of sprinkling water over a large territory
and with a minimum of expense and trouble.
20 It may be explained in this connection that
in various parts of the country where the
rainfall is -uncertain and the water-supply
scarce during certain portions of the year,
it is necessary -to conserve the water avail-
25 able for purposes of irrigation and upon
principles of economy, it is desirable that
a given amount of water shall be distributed
in such manner as to cover the largest area
of ground. It is also desirable that the
30 sprinkling pipe shall be of a kind easily
.shifted along.over the ground to be watered,
and that provision be made for enabling the
sprinkling pipe to be readily brought di-
rectly over any predetermined portion of the
-35 ground. Owing to the considerations just
stated, I have produced a system in which I
employ a sprinkling pipe having generally
-a cylindrical form and supported upon a
structure which I designate -as a creeping
40 scaffold, the sprinkling pipe being adapted
to roll along the scaffold and thus be shifted
from one point to another, the structure of
the scaffold being such that it may be readily
taken down at one of its extremities and
45 built up at another extremity, the pieces re-
moved in taking down the scaffold at its one
extremity being simply transferred or shift-
ed in position and rebuilt into the same scaf-
fold structure. By this means only a small
50 amount of scaffolding in the aggregate is
required.
I further provide efficient means for ren-
.dering the creeping scaffold approximately
level while in use and to this end I make
55 pryision- for raising and lowering the scaf-fold at .different points, at the will of the
operator.
Reference is made to the accompanying
drawing forming a part of this specification
and in which like letters indicate like parts. 60
Figure 1 is a plan view of the structure
embodied in my system. Fig. 2 is a vertical
section through a part of the creeping scaf-
fold. Fig. 3 is a detail showing in perspec-
tive one of the supporting beams forming a 65
part of the scaffold and used for supporting
the sprinkling pipe. Fig. 4 is a detail show-
ing in section one of the guides for the
sprinkling pipe.
I provide a number of supporting stands 70
or pedestals 5 which are easily moved from
one point to another and are adapted to be
folded for promoting ease in shipping.
Each supporting stand 5 is provided with an
upwardly extending portion 6 constituting a 75
slide-way and extending upwardly from
each supporting stand is a supporting stem
7 which is mounted in the slide-way. Fitted
upon opposite sides of the slide-way are
plates 8 serving as guides for the stem 7. 80
The supporting stem 7 is provided with
holes 9a so arranged that pins 9 may be in-
serted through these holes and rested upon
the guide plates 8 in such manner as to sus-
tain the folding stem 7 at different heights 85
or levels relatively to the stands 5.
Each supporting stem 7 carries upon its up-
per end .a bracket 10. This bracket is pro-
vided with a number of slots 11 as will be
understood from Fig. 3. In order to raise 90
or lower the supporting stem 7 the corre-
sponding pin 9 is withdrawn, the supporting
stem is pushed up or down as the case may
be and the pin 9 is again inserted through
the particular hole 9a which is just above the 95
guide plates 8. The supporting stem 7 and
parts carried by it are now sustained upon
the pin.
I provide a number of supporting beams
of the kind shown more particularly in Fig. 100
3 and each designated as a whole by the
numeral 12. Each beam is of composite
form -and comprises a body portion 13 of
wood and various metal parts. Mounted
upon the-top of the wooden body portion 13 105
is a metallic strip 14 secured to it by aid of
fastenings 15. One end of the strip 14 is
bent downwardly and sunken into the adja-
cent part of the wooden body portion at 16.
The strip 14 is provided with a portion 17 110
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Libby, Harry T. Portable Irrigation System., patent, June 13, 1916; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth857846/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.