~ W094~23264 PCr/BC94/~\0001
21~7;~
TF<ACER HUNTING CARTRIDGE
Fi~ld of th~ Invention
Thi~ invention relaies to tracer hunting cartridge,
which has a designation or hunting and spor shooting
¦ os with smooth bar weapons.
¦ Back~round of th~ Inv~ntivn
¦ It is popular hunting cartridge - US P No 4841866,
including cylindric shell with inflammable c,ap situated
; in.its base and upon which is situated prope.lling
explosive, the upper side of which is enveloped by lower
. cross platform of a monolitic concentrator, including
also upper cross platform and situated between two plat-
forms cylindric spindle.
The ~ower cross platform has extended and directed
~: 15 downwards perriphering board~ which is pressed densy to
the inside surface of the shell. The u~per cross platform
ended with cup-like body, on the walls of which are
formed lenghtwise cut-outs in two crossing plains. At
central place in the upper cross platform is formed a
. 20 seat, the upper part of which is a coca~ity with hemisphereshape, passing in lower cylindric. Along the outside sur-
face of the cylindric spindle there are formed stiffening
ribs, which lay down in plains, passing trough the axial
of the concentrator and stand on e~ual distance from one
another and in the spindle there is an axial hole,which
. oonnect the propelling explosiveand the seat.
In the above mentioned seat is installed tracing element
¦ , which consisting of sphering ball ended with cylindric tail
situated dense in lower cylindric part of the seat, where
the semi-diameter of the spheric ball is equal to the semi-
diameter of the semi-hemisphere seat, which permit the
tracing element to lay down densy with its lower surface
. . .
¦ W094/~2~ PCT~G94/00001
2~3 73~9
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to the surface of the seat. In the cylindric hole the
depth of which reach a little after the center of the sphe-
ric ball and in the cylindric hole is pressed in pyro-
technical tracing composition, consists of barium super -
05 oxide 87 %, magnesium ll ~, strontium nitrate 2 %.
The faults of the know technical decision are in thelack of possibility for correcting the accuracy of each
next shot, which is due to the following: in the process
of shooting the presure in the combustion chamber increa-
sing and arosed irregular deforming of the stiffening
: ribs of the spindle, where ~he parallelism between the
upper and the lower platforms is destroyed and the result
of which is that the axle of the concentrator deflected
under an angle in comparision with the axle of the cart-
ridge and barrel of the gun in the period of its
movement in them.
After leaving the barrel of the gun, the deflection of
the axle increases , which arose irregular opening of the
walls of the cup-like body as a result of the air-resis -
tanse and leads to spinning of the concentrator in theperiod of its flying~
Simultaneously the densy con.act between the seat and
the situated in it tracing element delayed the separation
of the above mentioned element from the concentrator. As
a result of the tracing element in the period of its fli~ht
, ~ . ,
can not follow the central axle of the movement of the
pellets sheaf and to stay in its nuleus till striking the
target.
Another fault of the popular tracer cartridge is that
! 30 it is not permit an optimum visibility with respect to the
tracing effect because of insufficient brightness of the
radiated light in the process of burning of the tracing
composition.
7 ~
W094~U2~ PCT~G94/00001
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Another fault i5 the fact that it does not give a possi-
bility for visual counting of the reached from pellets
sheaf preliminary gave distance.
It is an object of the invention is to create a tracer
05 hunting cartridge shooting with to ensure bigger efficiecy
expressing in big~er accuracy of striking the target,
optimum visibility in respect to the tracing effect and
also a possibility for visual couting of the reached from
the pellets sheaf preliminary gave distance.
Summary of the invention
_________________________,
The object of the present invention i5 solved with tracer
huntin~ cartridge, consist of cylindric shell with flammablP
cap, situated in its base and above this cap is powdered
free pxopelling explosive the upper surface of which is
15 enveloped from (~ross platform of a conc,~entrator, including
also an upper cross platform and situated between two plat -
forms spindle.
Along the periphery of the lower platform there is a
oriented to down board, to the outside cylindric surface of
which is forming densy - ring which is touching densy to the
înside surface of the shell and is interrupted along the
diameter oposite from both sides.
The upper cross platform ended with cup-like body on the
walls of which are formed at least in two piainy lenghtwise
~25 slots, which separate the~walls to equal number parts, con -
nected in their upper end with uninterruupted ring,tiuching
densy to the inside surface of the shell.
At central place in the upper cross platform is formed
a seat the diameter of which in the lower cylindric part is
30 smaller than the diameter of the upper cylindric part.
In the spindle there is an axial-cylindric hole,connecting
the bottom of the seat with the upper surface of the explosi-
ve and in the seat is situated ball-shape tracing element to
W094/~264 2~ 79 PCT~G94/00001
which is formed cylindric tail with cylindric hole from
thefree-end side of the tail and in this hole is pressed
- in pirotechnical tracing composition.
In the cup-like body of the concentrator are situated
05 pellets. According to the invention in the lower cross
platform of the concentrator is formed concentric channel
with section of right-angle trapezium and the diameter of
its conical surface where the spindle has conic shape,
which small diameter is equal to the big diameter of the
conical surface of the concentric channel and passed into
cylindric stop channel with right-angle section, which dia-
meter is smaller than the big diameter of the conic part
of the spindle and is equal to the concentric channel and
its width is equal to the thickness of the lower cross
platform, where between stop channel and the upper-cross
platform is form2d a ~houlder with a diameter bigger than
the diameter of the conic part of the spindle and the upper
part of the seat is truncated cone - shape with an angle
between forming from 70 to 120 and its lower cylindric
20 part are formed at least two diametric situated lenghtwise
channel with right - angle section and coming into surface
of the seat and cylindric part of the seat is formed a hol-
ding ring with semi-circle section, separated by the lenght-
wise cut-outs on equal sectors, enveloping tàil of the tra-
cing element, which lenght is smaller than the depth of thecylindric part of the seat and the ball of the tracin ele -
ment is formed tha tail in appearance of segment with
radius R, laying in the conic surface o~ the seat and the
upper part of the ball is formed in appearance of semi-
30 sphere with radius Rl, smaller than radius R of the segmentof the ball and the centers of the radiuses R and Rl are
situated along the axle of the tracing element on the dis -
tance from each other equal to l/5 from the radius of semi-
sphere Rl.
W094/~2~ 2~37379,. ; ~ PCT~G94/00001
According to a version of the tracer hunting cartridge
the spindle connecting the lower and the upper platforms
ofthe concentrator has cylindric-shape on the surface of
which is formed under slope and symmetric to the axle of
95 the concentrator stiffening ribs standing on equal distan-
ces from each other,
Another version of the tracer hunting cartridge is
distinguished with the fact that the bottom of the cylin-
dric hole on the tail of the tracing element is formed in
10 the plain of crossing between segment and radi.us R of the
ball and cylindric tail. The tracer hunting cartridge is
distinguished with using of a tracing pirotechnical compo -
sition, which includes magnesium powder 30-40 ~, potassium
perchlorat 10-20 % strontium nitrate 35-45 % ~nd connecting
15 substance 5-15 ~O
Another pirotechnical composition which ensure optimum
vision consist of magnesium powder 15-35 %, barium super-
oxide 30-50 %, strontium nitrate 20-~0 %, chlorine supple-
ment 2-10 % and connecting sub~tance 5-15 ~.
A version of the tracer hunting cartridge ensuring visu-
al counting of ths reached from the pellets sheaf prelimi -
nary gave distance is characterized with the fact in the
tail of the tracing element are pressed - in consistently
in direction from the base of the hole to its bottom, basic
. 25 and additional pirotechnical compositions and the additional
pirotechnical compositions and the additional composition in
the proces~ of burning radiate light which colour differed
from the color of the basic tracing composition~
The priorities of the tracer hunting cartridge according
the invention are in the increased efficiency in the process
of striking the target, which is a result from the possibi -
lity of the hunter to correct the precision for the next
shot due to the information which takes from the tracing
wog4n32~ 2~73.79 PCT~G94tO0001
effect of theprevious shot - the tracing element follows
the central axle of the movement of the pellets sheaf and
stays in its nucleus till the falling of the same in the
target and simultaneously the tracing composition radiate
05 bright light and ensure optimum vision.
Brief description of the drawings
_________________________________
As an example-made the tracer hunting cartridge accor-
ding the inventioR is shown on the enclosed drawings,where:
- fig.l -lengthwise cut-out of tAe tracing cartridge
- fig.2 - lengthwise cut-out oS the monolithic: concentra -
tor.
- fig.3 - top view of the concentrator
- f ig . ~ - lengthwise cut-out of the tracin~ element of the
cartridge in fulfilment with basic pirotechnical
composition.
- fig.5 - 1 ngthwise cut-out of the tracing element in ful-
filment with basic and additional pirotechnical
composition
- fig.6 - lengthwise cut-out of a version sample of con -
centrator with cylindric spindle and stiffening
.ribs.
- fig.7 - side view of the concentrator from fig. 6
- fig.8 - cross cut-out A-A of the concentrator from fig.7
Detailed description of the Invention
____________________________________
The tracer hunting cartridge according the invention
consists of hunting shell including cylindric plastic ele -
ment 1, in the lower inside part to which is inmobilecon-
nected lpastic sleeve 2 and the outside lower part of the
cylindric element 1 is enveloped from metal cup 3, where in
the formed bottom of the shell is installed flammable cap 4.
In the bottom of the hunting shell, upon the sleeve 2 is
powdered free propelling explosive 5, which contact with
the upper part of the cap 4.
W094/~2~ ~3~3~g - PCT~G94100001
. .
Above the propelling explosive 5 is situated monoli-
thic concentrator 6 , which consists of lower cross plat-
form 7 trough the periphery of which is formed lengthen-
ing and directed to down board 8 , through the outside
05 surface of which there is densing ring 9 with semi-sphe-
rical shape, interrupted against the diameter.
In the lower surface of the lower cross platform 7 is
formed concentric channel lO with right-angle trapezium
shape, which diameter is bigger than the diamete~rs of its
conic surfaces.Above the lower cross platform 7 is situa-
ted conic spindle ll, oriented with its small diameter to
the bottom of the shell, where the small diameter of the
conic spin~le ll is equal to the big diameter of the conic
surface of the concentric channel lO. The upper part of the
~; 15 conic spindle ll passed into cylindric stop channel 12
i~
with right~angle section. The diameter of the channel 12 is
smaller than the big diameter of the spindle ll and is
equal to the diameter of the cylindric surface of the con -
centric channel lO and the width of the stop channel 12
is e~ual to the thickness of the of the lower cross
platform 7. Above the stop channel 12 is formed
resting step 13 with diameter, bigger than the big
diameter of the conic part of the spindle ll. After
the resting step 13 is situated the upper cross plat-
form 14, in the periphery of which is formed cup-like
body 15, on the walls of which is there is lengthwise
cut-outs 16, passed through unless in two plains.
- The formed in this process feathers are connected
in the upper ends with the help of ring 17 with
semi-spherical shape, which outside size ensure dense
contact with the inside surface of the shell. In
central place in the upper cross platform 14 is for-
med a seat 18, the upper art of which has the form
of truncated cone with an angle between the formings
I r; ~
WO 94/~2~ 7~9 PCT~G94/0000l
70 - 120 and the lower part is cylindric where
; from its bottom to the dowm surface of the lower
cross platform 7 passed cylindric channel 19.
In the cylindric part of the seat 18 are formed
05 four diametric situated lengthwise channels 20 with
right-angle section, the upper part of which reach
to the conic part of the seat 18, as the semi-sphe-
; re holding ring 21, separated fromm the lengthwise
channels 20 of four equal sectors.
In the seat 18 is situated tracing body 22, con-
sists of sphere-ideal element 23 and formed to it
. - cylindric tail 24r which length is smaller than the
j depth of t~e cylindric part of the seat 18. The
I spherical element 23 is formed in its base in the
shape of segment with radiu5 R, bigger than the radi-
us R1 o the upper semi-spherical part, where the
centres of the radius R and Rl are situated along
the axle of the tracing body 22 in a distance from
each other equal to 1/5 from the radius of semi-
! 20 sphere R1.
In the cylindric tail 24 of the tracing body 22is formed cylindric hole with bottom, laying down
in the playin of crossing the segment of the sphe -
rical element 23 and cylindric tail 24. In the cylin-
25 dric hole of the tail 24 is pressed in basic pyro-
techn.ical composition 25, consists of heterogeneous
! powder 30-40 %, potassium perchlorat 10-20 %, strontium
nitrate 35-45 % and connecting substance 5-15 % expressed
in mass soles. The pirotechnical tracing composition
is chosen for illustration and is not purposed
for defining of limiting the variable compositions, as
as an example:
wog4n32~ 2~i73~9 : PCT~G94/00001
.~
: .
magnesium powder 15-35 %, barium supersxide 30-50 %,
strontium nitrate 20-4Q %, chlorine supplement 2-10 %,
and connecting substance 5-15 % or magnesium pow~er
15-35 %, potasium nitrate 40-60 ~, strontium nitrate
05 20-30 %, chlorine supplement 2-10 % and connecting
substance 5-15 %.
According a know version of the tracing body 22,
in its tail are pressed in consistenly in direction
from the bottom of the hole to its base, basic and
additional pirotechnical tracing composition 26, where
the additional composition 26 differed from the above
mentioned with the fact that in the process of
burning in radiate light, the colour of which diffe-
red from the colour of the basic tracing composi~ion
25.
A variable decision of the situated in the hunting
shell concentrator 6 is shown on fig. 6,7,8. This
concentrator 6 consists of lower cross platform 7
with directed to downboard 8 and dense-ring 9, upon
which is situated cylindric formed spindle 11, along
the outside surface of which are formed, under a slope,
symmetric according the axle of the concentrator 6
four stiffening ribs 27. The spindle 11 is connected
directly with the upper cross platform 14. In the cup-
like body 15 of the concentrator 6 are placed freelead pellets 28. The throat 23 of the hunting shell
is enveloped in stars-like way.
The action of the tracer hunting cartridge can be
shown in the following way: in the process of shoo -
ting the flammable cap 4 burns the propelling explo -
sive 5, where the increasing during the burning gases
increase the pressure in the burning camera of the
cartridge, as a result of which the walls of the
W0~4l~2~ PCT~G94/00001
2~1 ~7 ~9 r
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periphery board 8 pressed dense with the help of
dense-ring 9 to the inside surface of the shell
and did not permit to the gases to bore.
The further on increasing of the pressure in
05 the burning camera leads to tearins of the lower
cross platform 7 in the field of the weakened
section, placed upon the concentric channel 10.
After tearing, the lower cross platform 7 moves
axial and slides along the conic surface of the
10 spindle 11, till its fixing in the cylindric stop
channel 12, as thanking of having the cylindric step
13 coming a dempfer effect, stopping the coming of
remnants deformations in the seat 18. In this mo-
ment the concentrator 6, together with the tracing
15 body 22 and the pellets 28 begins to move sliding
~.:
~ alonghe inside surface of the shell. The first
shortened distance between the power 7 and upper 14
cross platforms ensure rectitude of the axle of the
concentrator 6 and coincidence of it with the axles
20 of the cartridge and the barrel of the gun in its
acceleration move in them, where the parallelism
situation of both cross platforms 7 and 14 keeps
thanking of the shown dempfy effect. The inertion
powers, took from the acceleration move of the con-
25 centrator 6 with the placed in it tracing body 22and pellets 28 have a direction opposite of the acce-
leration, as a result of which the tracing body 22
stays to the seat 18 without tightening tanking of
conic forming of its upper part, as the lack of
3~ remnants deformations in it, simultaneously the gases
separating in the burning of propelling explosive 5
penetrate through the channel 19 of the spindle 11
_ , , .. .. ., , .. , ., . .... .. .... .. , , ...... ,, .. . . . ~ . . ... . . . . . .
W094/~2~ PCTnG94/00001
Z~7:~g ` ~
and burning the basic tracing composition 25,which
take place in the tail 24 of the tracing body 22.
The separating in the burning of the tracing compo-
sition 25 gases passed thxough the lengthwise
05 channels 20 in the cylindric part of the seat 18
and reached to its upper conic part and acting
upon lower surface of the spherical element 23 with
power, counteracting of the inertion powers, but sma-
ller than them. Thanking of the last, the tracing
10 body 22 and the pellets 28 continue to hold to
the seat 18 and the upper cross platform 14 of the
concentrator 6 in their accelerating move in the ba-
rrel of the gun. In the time of leaving the barrel
the ring 17, formed in the upper part of the cup-
15 like body 15 tears from the air resistance, where thefeàthers opened up and the speed of movement of the
concentrator 6 decrease. In the same time the pellets
28 prolonging to fly upon the acting of their own
inertion powers and they separate from the surface
20 of the upper cross platform 14 and upper surface of
the spherical element 23 of the tracing body 22. And
the gases, separating during the burning of the basic
tracing composition 25 act with definite power upon
the lower surface of the spherical element 23,which
summarized with its own inertion power, in the period
of delaying movement of the concentrator 6, helps for
easy and duly separating of the tracing body 22 from
the concentrator 6 and beginning of its independent
flight along the central axle of movement of the
30 pellets sheaf, as it stays in nucleus till, striking
the target.
W094~32~ z~737~ PCT~G941DOOOl
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In using o tracing body 22 with situated in the
tail 24 basic 25 and additional 26 pirotechnical
tracing compositions is appearing the next tracing
effect - burning at the end, during the time of the
flight of the tracing body 22, the basic tracing
position 25 burns the additional tracing composition
26 and in that way ensures changing the colour of
radiated till this moment, light till reaching of
the preliminary gave distance, coresponding to the
necessary for striking the target.
In using of tracer hunting cartridge, in which is
; situated concentrator 6, which is a version with
i stiffening ribs 27 is getting the following effect-
i in reproduction of a shot, as a result of increasing
1 of the pressure in the burning camera of the cart-
I ridge, the lower cross platform 7 and the upper ~ :
¦ platform 14 are turning around the axle of the
concentrator 6 in opposite direction definite from
the slope of stiffening ribs 27, as a result is a
1 dempfer effect, ensure keeping of parallelism between
cross platforms after cutting of the first distance
between them, as the stopping the creation of the
remmants deformations in the seat 18.
,
