Oil Well Torpedo. Page: 2 of 3
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UNITED STATES PATENT OFFICE
LEWIS A. MOSHER, OF GOOSE CREEK, TEXAS.
OIL-WELL TORPEDO.Specification of Letters Patent. Patented Mar. 11, 1919.
Application filed July 29, 1918. Serial No. 247,203.To all chom it may concern:
Be it known that I, LEwIS A. MlosuIER, a
citizen of the United States, residing at
Goose Creek, in the county of Harris and
5 State of Texas, have invented certain new
arid useful Improvements in Oil-Well Tor-
pedoes, of which the following is a specifica-
tion, reference being had to the accompany-
ing drawings.
10 This invention relates to means for det-
onating explosives in oil wells, andl more
particularly to means for exploding nitro-
glycerin in oil wells.
The general object of the invention is to
15 provide a very simple neans for lowering a
charge of nitro-glycerin into an oil well and
then exploding a fulminate cap to thereby
explode the nitro-glycerin.
A further object is to provide a device of
20 this character which may be loaded without
danger of premature explosion and which
may be lowered into the well withu.Jt danger
of such an explosion, and which will there-
fore be very safe to handle.
25 Another object is to provide a device of
this character which is very simple in con-
struction and cheap to manufacture and
which any one of ordinary intelligence can
handle with entire safety.
30 Other objects will appear in the course
of the following description.
My invention is illustrated in accompany-
ing drawings, wherein:---
Figure 1 is a vertical sectional view of
35 a well casing with my torpedo disposed
therein;
Fig.- 2 is a vertical sectional view of the
detonating head and the go-devil;
- Fig. 3 is an elevation partly broken away
40 of the detonating head and the dynamite
container; and
Fig. 4 is a section on the line 4-4 of
Fig. 2.
Referring to the drawings, it will he seen
45 that 'my device comprises a nitro-glycerin
container designated 10, which is formed of
a pipe open at its opposite ends, one end be-
ing exteriorly screw-threaded and the lower
end being closed by a cap 11 after the charge
5o of nitro-glycerin has been inserted. The
detonator proper consists of a body 12 en-
larged at its lower end as at 13 and exteriorly
screw-threaded to fit within the upper end of
acoupling10aon the nitro-glycerincontainer
55 10. This enlarged portion 13 contains a
chamber 14 designed to contain fulminate,this fulminate being held in place by a wad
15. The upper end of this chamber is re-
duced in diameter, to form a seat for a det-
onating cap or primer 10. Formed integral 60
with the body 12, and arching over this body,
is the yoke 17. which is cut away as at 18
and as at 19, leaving a cross bar 21 just above
the primer 1. and a cross bar 22 at the up-
leer end of the yoke. These cross bars are 65
perforated for the passage of a firing pin
23, the lower end of which is formed to en-
gage and explode the primer 16. This fir-
ing pin, as seen in Fig. 4. has its upper end
annular in cross section and vertically slot- 70
ted as at 24 to acconmiodatet transverse bolt
25 which passes through the yoke 17. A
screw 2( passes through tihe cross bar 21 and
is adapted to engage the firing pin to hold
it raised or in safety position. 75
For the purpose of supporting the charge
of nitro-glycerin, and the detonator, a wire
27 is used which passes over the pulley 28
at the mouth of the well and extends down-
ward into the well and at its lower end con- 80
nects to the bolt 25. The wire 28 is con-
nected to a reel or any other suitable means
whereby it may be raised and lowered and
adapted to slide downward on the wire 28 is
a dart pipe or "go-devil" 29 having a diam- 85
eter the same as the diameter of the firing
pin 23.
In the practical use of this invention the
bolt 25 is first removed and the firing pin 23
is raised to its full height and engaged by 90
the set screw 26. Insert the primer on the
seat 16 and fill the chamber 14 with black
gun powder, or other quick-exploding ful-
minate held in place by means of the wad 15.
The wire 27 is then inserted downward 95
through the slotted opening 24 of the firing
pin, a loop having been formed at the lower
end of the wire previous to insertion for the
passage of the bolt 25. The dart pipe or
"go-devil" has been, of course, previously in- 100
sorted upon the wire 27. The explosive
charge is then disposed In the container or
pipe 10 and the container is screwed into
the coupling 10a which connects the con-
tainer 10 to the body 12. The set screw 20 105
is then loosened and the firing pin carefully
lowered until it rests on the primer 16.
The device is then lowered gently into the
well to be torpedoed, the dart pipe being
held at the top of the well against any 110
downward movement until the detonator
with its charge of dynamite has reached the1,296,836.
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Mosher, Lewis A. Oil Well Torpedo., patent, March 11, 1919; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1258200/m1/2/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.