Well-Screen Page: 2 of 3
[1], 2 p. : ill. ; 23 cm.View a full description of this patent.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
UNITED. STATESPATENT OFFICE.
7dAHLON R. LAYNE, OF HOUSTON, TEXAS.
WELL-SCBEN.IO8,O78.
Specification of Letters Patent. Patented Feb.24,1914.
Application filed April 1, 1913. Serial No. 758,142.To all whom it may concern:
Be it known that I, MAILON E. LAYNE, .
a citizen of the United States, residing at 1
Houston, in the county of 1-arris and State
s of Texas, have invented certain new and
useful Improvements in Well - Screens, of
which the following is a specification.
The invention relates to well screens, the
apparatus embodying the present inven-
io tion constituting a modification of the ap-
paratus disclosed in my . Patent No.
1,062,717, issued May. 7, 1913. The in-en-
tion has for its objects, the provision of an,
improved type of screen which can be more
15 easily sunk, and one in which the tendency
of the front end of the screen to deflect
laterally in the' driving operation is sub-
stantially eliminated. Certain embodiments
of the invention are illustrated in .the ac-
20 companying drawing wherein-
Figure 1 is a vertical section through
the ground, showing the metal screen in
side elevation with a portion thereof broken
away; Fig. 2 is a side elevation of a modifi-
25 cation; and Fig. 3 is a side elevation of the
lower end of still another modification.
The screen is of metal, and may be er-
forated in order to provide for the inflow
of water or other liquid in any manner
0 known in the art. The screen may be made
of ordinary tubing, but is preferably made
of sheet metal bent into cylindrical form,
the sections thus formed being secured to-
gether to provide a screen of any desired
8s length.
In the form of screen illustrated the per-
forat ins are of the type illustrated in my
Patent #1,001,655, issued August 29, 1911,
such perforations being 'in the form' of eir.
40 cumferential slits. These slits are formed by
means of opposing serrated dies, one inside
the tube and the other outside the tube,
which dies are brought toward each other,
and shear out the slits and bend the strips
45 of metal between the slits into the angular
positions indicated in the drawings; This
form of perforation has special advantages,
as pointed out in ..the, said Patent 'No.
1,001,655, but such feature constitutes 'no
80 part of my present invention.
The screen as illustrated in Fio. 1 com-
prises three portions, A, B, and , the ex-
treme lower portion A being cylindrical,.
the portion B thereabove being tapering,
55 and the portion C above the tapering por-
tion being cylindrical. The perforations 1as above described are placed on those por-
tions of the screen exposed to the water-
bearing strata, the, upper portion of the
screen not exposed to water-bearing strata 60
and the portion A being Iftunperf orated a
indicated in Fig. 1. The lower edge of the
section A is provided with a cutting shoe 2
which may be of any approved form, and
serves to facilitate the sinking of the tube 65
into the ground.
Surrounding the screen above the taper-
ing portion B and supported thereby, is the
tubular envelop of finely divided screening
material 3 preferably of gravel, such tubu- 70
lar envelop bearing at its inner surface upon
the screen, and at its outer surface upon
the clay or other material through which
the tube is sunk.
In positioning the screen the gravel -3 is 76
inserted as the tube moves down and as the
dirt is removed from.the interior of the
tube. The weight of the gravel thus in-
serted assists in the downward movement
of the tube, and serves to prevent the .soil so
around the tube from caving, the advan-
tages of this general type of construction
being pointed out in my Patent No.
1,062,717 referred to.
The use of the straight cylindrical por- 85
tion A below the tapering portion B has
been found to be of advantage-, inasmuch
as such construction tends to prevent the
tube from working laterally during its de-
scent, as is the case here the flared or ta- 9o
pering portion is at the extreme lower end
of the tubing. The lower cylindrical por-
tion A therefore serves as a guide, and-
causes the tube to descend in a true vertical
patli. The construction is of particular 95
advantage where the soil formation is un-
even arid -one portion of-the end of the tube
engages a formation harder or more. resis-
tant thata another portion of the tube, as in
such fornations the tendency bf the end of loo
the. tube to be deflected laterally is greatly
increased. -The length of the portions A
and. B aind the inclination of the portion B
.may be varied 'top it conditions, and any
type of perforaioinay be employed.
: Fig. illustrates a modified type of eon-
"struction wherein.. the tapering portion D
of the tube is at its extreme lower end, the
cylindrical guiding portion .4 of Fig. 1 be-
ing omitted. The portion E fbove the ta ir
pering portion D is cylindrical and .corre-
sponds to the portion C of Fig. 1; The per-
Upcoming Pages
Here’s what’s next.
Search Inside
This patent can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Patent.
Layne, Mahlon E. Well-Screen, patent, February 24, 1914; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth858909/m1/2/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.