APPAREIL DE CORRECTION DE LA POSITION D'ELEMENTS DE VISEE, EN PARTICULIER DES MIRES OU VISEURS, D'ARMES PAR RAPPORT A L'AXE DE L'AME DE CES DERNIERES

DEVICE FOR CORRECTING THE POSITION OF AIMING ELEMENTS, SPECIALLY ARM SIGHTS WITH RESPECT TO THE BORE AXIS

Abrégé français

Appareil et méthode permettant de corriger la position des éléments de visée d'une arme, en particulier une mire ou un viseur, par rapport à l'axe de l'âme des armes, l'appareil consistant en un tube creux de longueur appropriée que l'on introduit dans l'arme, à la place de la fermeture de celle-ci, le tube présentant une extrémité tronconique pour son adaptation au calibre de l'embouchure de la chambre, et étant doté extérieurement d'une douille de diamètre externe approprié au point d'entrée de la fermeture, afin qu'il soit centré. Le système d'émission de rayons laser est monté à l'intérieur de l'appareil, ce système ayant des moyens d'alimentation et d'interruption. Les rayons laser traversent la zone tronconique dûment taraudée ainsi que, en option, une autre pièce de surface échelonnée adaptée à l'embouchure et également taraudée axialement afin que le rayon laser matérialise, sur une cible située à une distance donnée par une table de distance, le point d'impact sous forme de point lumineux, et par rapport auquel on effectue la correction de la mire ou du viseur en agissant sur ses mécanismes correspondants d'ajustement de cette dernière.

Abrégé anglais

Device and method for correcting the position of aiming
elements of an arm, specially a sight, with respect to the bore axis of said
arm, comprised of a hollow tube having an appropriate length so that it
can be introduced in the arm, in place of the bolt of the latter, the tube
presenting a truncated end so as to be adapted to the caliber in the mouth
of the chamber, and provided externally with a bush having an outside
diameter corresponding to the entrance point of the bolt, so that it is
centered. Said device is provided internally with a laser beam emitting
system with supplying and switching means, said beams going through
the truncated area appropriately bored as well as optionally, another
stepped surface adapted to the firing mouth and also axially bored so that
the beam materializes, on a target placed according to adequate distance
tables, the impact point by means of a light point and, with respect to the
latter, correcting the sight by acting on the corresponding sight adjusting
mechanisms.

Revendications

- 8 -
CLAIMS
1. Apparatus for correcting the position of the aiming elements, especially
sights or viewfinders, of weapons with respect to the bore axis thereof,
characterized in that it consists of a device coupled so as to be sealed at every
point between the breech and the mouth of the barrel, with power supply and
on-off switch means, and that it emits a laser beam which is projected through
the bore of the weapon.
2. Apparatus for correcting the position of the aiming elements, especially
sights or viewfinders, of weapons with respect to the bore axis thereof,
according to Claim 1, characterized in that the laser beam emitter device
consists of a hollow cylindrical tube of a smaller calibre than that of the
weapon in question, in that its front and internal end is provided with a
connecting region, for fitting an extension piece thereof, with a frustoconical
end divided into sectors of increasing diameter, pierced axially by an internal
duct and, optionally, coupled, at least the last one of smallest diameter, to one
another, for fitting to the front region of the breech, whatever its internal
calibre.
3. Apparatus for correcting the position of the aiming elements, especially
sights or viewfinders, of weapons with respect to the bore axis thereof,
according to Claims 1 and 2, characterized in having provision, on the basic
tube, for a sleeve sliding with slight friction, of external calibre matching that
of the receiving bridge which fixes the bolt in the rear region, for the purposes
of immobilizing and centering the apparatus.
4. Apparatus for correcting the position of the aiming elements, especially
sights or viewfinders, of weapons with respect to the bore axis thereof,
according to Claims 1 to 3, characterized in making use optionally of a piece
with its surface stepped into cylinders of progressive diameter in order to be
fitted to the muzzle according to its calibre, which piece is also pierced alongits axis, so as, with the laser beam which passes

- 9 -
through it, physically to represent the bore axis of the weapon in question.
5. Method for correcting the position of the aiming elements, especially
sights or viewfinders, of weapons with respect to the bore axes thereof,
characterized in using the apparatus described according to Claims 1 to 4, in
conjunction with a set of targets, corresponding to various distances, on which
the difference in height which has to exist between the cross of the aiming
element and the spot of light of the laser beam is represented, and, based on
that, without having to immobilize the weapon, in being able to make the
corresponding correction to the aiming mechanisms, optionally using connected
data processing means, depending on the distance at which the weapon is
going to be used.

Description

~6 11: 20 ~3193~10 ELZAB~TRU SA [~1004/022
I
- 1- 21~7159
DEVICE ~ OR CORRECTI~-G THE POSITION OF AI~ G ELEME~TS,
SPECIALLY AR~ SIGElTS WIrr~ RESP~Cl~ 'ro THE ~3ORE AXIS.
F~ n oy ~Pr~ATJC~N OF 1~ ;~ O~
l~e in~.renelo~ applie~ to t~e ~iold of th~ f iring
o~ all type~ of w~r~ e~auipped wi~h a~m;~ y8tem8,
~opecially ~ightn or viewfinder~, without rc~uiring the
att~ntio~ of specl~llst~ ~or ha~ i~g ~co u~e firing ra~ge~
~sp~cially prc~ided to do ~o.
p~ OR ~T
- At pr~t, i~ orde:r to achl~ve p~rfect al~g~or~t
w~ th tho parallax corre~p~n~ g to ~he ~iri3g di~tancc,
b~twee~ th~ axi8 O~ t~e uighe a~d that o~ t~e bore o~ ~he
wes~o~ i~ c~ tion, no ~e~ial apparatus cx~.~t~3, bu~ ~uch
correc~c~ on ~ ~ achie~red ~y t~k~ t~ we~p~n to a fir~g
range, ~ix~g it by ~a~o ot' tr~pod~ i~ order to pre~nt
it f~rom ~ing, a~d carry~ ng out ue~ral ~ir~ r~gf~, ir
order to aee the dl~tanc- and dev:Latio~ exi~t:ing betwa~n
the lmpact ~nd t~ point wh~ h marl~a the croa~-hai~3 o~'
th~ ~igb,t, i~ order to c~rry out the corre~t~ on ~reof .
This introducef3 t~o s~-ceElf~ity to go to a ~iri~::g
ra~ge, to carry out the D~oCC~a~ ~ ri~gn to achie~re
co~cid~ce between ~ight and i ~- ~c, to ret~r~ home or
to the place ~here ~ e~ent f ir~g~ a~o 'co be ~er-
for~ad, wit~ the co~-loqu~t dang~r of furt~er ~ladjuet-
me~ dusi~g the ; o-lr~ey .
T~ero al~o ~xi~t parallol rods, ~parated by
space equ~ val~nt to the dista~ce exi~i~g between bore
a~d ax~s oi~ the ~lg}Lt. With os~e o~ th~rL ir~erl cld ~hrough
th~ ~uzzlo, t}~e ~at~er i8 ali$~a~d ~nually wlth the axis
o~ the 8i ght . 'rh~ appara'CUB i8 rLo~ y lacking i~
accuracy .
A ~,ra~ ant of ~hi~ ~yatem ~ t~e ~li~en~ oi~ the
p~eYio~a~ly :~t~ d. X~E ~th ~ xi~ e,~ t~ ~ ~r5
point by m~ of a l~et of o3?t~iC~ Alt~ough t~

~31~3810 ELZABUR-~ SA
005/022
2 ~ & 7 1SY
latte~ ~ystem ~EI ~orls acc~rate ~an ~e ~re~vlouo o~e, it
al~o 8uf f~era ~rom lack o~ acc~racy, ecpeclally in ~ot
consid~ring th-3 ir~ dis~cance. In additlosl ~ t ~e~uires
speciali~t e~uip~ent a~ld perso~el, ~omethl~g ~ic~ ~iB
5 nc~r~ally ~ot gener311y within l:he reach o~ all u~es~.
D~:S~:RIPTION OF T~E ~ o~
T~e apparat~ ~o~ eorreeti~g t~e po~:~ tion o~ a
10 sight or viewi~l~der wit~L rQl3poct to the axis of the bore
of the weapos~, to ~iCh t~e prece3t l~vent~ o~ rei~ers,
co~siats of a baRlc tube o~ the approprlate calibre ~or
beis~g is~serted lu~o e~e ~ou~lng o~ t~e bol~c o~ t~e
w~3spo~, wh~ ch t~c ha~, at i~ ~ra~ ~nd, ~ t~read~3d
3 5 i er r~gio~ for cou~lt~g a ~eco~d ~i~ce, w~ich is al~o
cyllndr~ ~al and te~i n~ted ~ ~L a ~sustoconical ;ce~ on
divi~d into s~ctor~ of dec~ea~3ing diamet;~r, th~ ~ s~cond
piece bei~g plerced alo~s~ it~ aXi8 ~i~h ~n orif~ice of
~arrow d~ameter, o~ the ord~r o~ 2 to 5 mill~etre~ e
2~ var~ous sectors o~ t:~e ~ toconical piece ~a~e ~m~ter~
equal to th~ bat3a~ o~ Cartr~ of the ~ullet~ of
the ~rzLr~ calibre~ o~ ~aror~. At lea~t the la~t of th~3
uectors, the one o~ s~alle~t di~e~er, ~an be remo~red
from 'che reB7; 0 t~e fru~toco~ical ~i~Ce. In a~other
z~ pre~erred embo~ o~ t~e ~nver~tio~, it i~3 pol3s~ble, at
t~e poi~t w~ere t~ia la~t ~ector of ~alle~s~ d~e~er iE3
co~cted, ~o couple empty ~ullet cartridge~ o~ ~rario~ls
cal~re~3, which ar- prepared ~or thi~; purpose. ~e
cartr~ dge, be~ e~pty, allo~a ~ a laser b~a~ to paE~3
3C t~rough, due to whlch it achieve~ the ~a~e ef~ects, o~
guldirlg the b~am a~d ol~ pr~c~ ~e coupling ~o t~e ~ront
part of the ~r-ech, ~a the last s~alle~t-dlam~ter sea~cor,
~rhich ~a~ been c~eparated.
A t~i~d piece, which includel3 a system ~or
3~ tt~g a lac~r b-a~n, ie al~o acu~led f~rth~r i~ide ~he
tu~e. ~ long ~e~Dn, t~ le~rice ~aes ~ aila~le it~I O~
powlisr ~upply ~ourae a~d a switch situated ~ the i~ al
baac of ~e b~ic tube. OD thill tu~e i~ ~3ituated anothe~
piece, ~o ~ it C~l ~lide, ~os~ned ~ a ~le~ e o~

9~ 21 ~31~3810 ELZABURU SA ~ 00~/022
- 3 - 2 1 87 1 ~6~
~te~nal diam~ter eq~al to t~e out~ide of the tu~e, w~ th
~ ollter, sear butt he~l, a butt f la~e ;~l.qo be~g
pro-rided at the extr~ne en~ of ~e ba~ic tube Bo tha~ ~b,e
E~lidi~g ~loeve c~n~t c~e o~ o~er ~ end, or o~er the
~ront e~d, sl~ce the conlcal regio~ of the ~ustoconlcal
piece h~ a ba8~ whic~ lig~tly larger t~a~ the
cyl~ ncrical regio~ 80 a8 to f~os~ a ~tepped ~utt pi~ce .
ort weapoIls, ~e ~ower ~upplie~ d/or t~:e
c~ can be arr~ged sep~.rat~aly fro~ the e3~tter. The
J ~ame ~ould be tr~e in the case of fi~t~g t~e ~ g
~3y~tem~ o~ ;Irt~ llery piece~ and ~ cu. In t~e~3e ca~e~s the
laaer em~ter ca~ al~o be irLE~erted ei~her throllgh the
m~&le o the weapon or through the breec~ thcreof. In
~oth cal3eu the power ~upply a~d/or t~e ~witch could be
arranged separately fro$c the said la~e~ nitter. A
~arias:t of the pr-~t ln~r~tlo~ pro~rldes for tlle emitte~
to be re~Lotely act$vat~b1e, either by ~e~nr of wlre~;, or
by mag~etic or wa~re ~eans or th~ 1~ ke. I.ikewise, in
guided weapo~ for ~iri~g ey~te~ co~led to data pro-
O ce~ ng ec[uipment, t~e para~eter~ jrh~, e~t in ~e l~:erb~am em~'cted can ~e ~ 3p~t a~ d~ata into tbe g~icl;~nce
program of the wo ~rt~ order to ~ire it .
F~ ~ally, a further piece i6 pro~r~ded, having
stepped ~u~a~e of ~ ~riou~ dia~eter~, witb a f lange at
5 it~ large b~3e, and pierced along its axi~3, wit~
o~iice o t~e ~ame diamoter ae the one o~ t~e fru3to-
co~ical reg~.o~ o~ t~Q app~.ratU~. Thi~ la~t p~ ~ce ~ R fo~
mat~h~ o ~e m~lz~ o~ ~he w~apon in gue~io~; to do
t;hat, it~ ~t~ surface allows it to be perfectly
O ma'cch~ and centred o~ tho ~a~ia of the cali}~re of t~e
weapon .
T~e apparatu~ o~ the i~ ~ent~ o~ c~ be ~erted
into ~he ~ouaing o~ i bolt, onc~ the latter ~n bee~
~F~o~.red, ~o that th- fr~toco~i~~al region of t~e end f~ t~
i5 per~ectly lslto the dlameter o~ the breech in the reg~ OD
w~ere the ba e o$ ~he :astridge ~3lt~ when it i8 in~erted
i~to the breech, in l~uc:h ~ w~y that the 61idi~g slee~e
,~ t~ perfectly ~ithi::L th~ rec~iver ~r~ds~e thro~gh whic~
the ~o ~ t _b ~n~rt~d, E~o t~a~ the ~c~ ~ o . thi~ ~pp~ratu~

~6 ~1: 21 ~3193810 ELZABURI~ S~
1~ 007/022
21 ~7~ ~
coi~c~des Camæ~e~cQly ~ith ~ of t~he bore o~ e:he weapon,
~d at the ~a~e t~m~ co~ r~cidea wi~ t~ pierci~g o~ the
piec~ whlc~ ~ R coupled to t~e s~uz~le, ~o ~cha~, when the
BwitC~ o~ th~ la~er beam ~io~ 8ylilte~ i actuated, the
laae~ beam wi~l co~ne out ~hy~ically ropref~e~tir~g the
r~er~tion~d ~ore ~d producing a s~ot o~ lig~t on a
~3ur~acs os~to which it i~ a~d. ~b~in ~pot o~ light ~ill
~e the reference point for adju~ti~g ar~d correcting the
de~i~ 03 ~ic~ e~ ts ~i~b, re~pect t~Lereto on sighting
Lo t2~rough the ~ht or ~ wflDder, r~p;~rl~g the ce2ltre of
the c~o~s-~alr~ w~ th the E~pO~ of lisht wl~ ch p~y~ically
repre~e~t~ the i~`t ~ 5:1 th~ case o~ fir ~-
~ SCRIP~IO~ 0~ ~E D~t~G~
A detail~d de~criptio~ o~ the a~pa~atue, for
corr~cti~ the positior~ o~ a çl~g~t or ~ i~wE~der wi~h
rc8pec~ to t~e bore axla o~ ths w~apon which is en~ri8a~ed
wlll b~3 give3 bolow, with re rer~C~ to the acco~Ppanying
ao drawiny~, in which a pre~erred e2~0~ ent i~ repres~3nted
~imply by way of non-l~sDit~g exa~ple, and c~pa~l~3 of all
t}~os~ var~ at~ on~ of d~tail which do not i~ply a ~unda-
s~e3tal alter~tio~ to t3~e e~e~ti~l ch~,ract~ri~;~ics o~ t~e
~l~odim~t,
The ~id drawir~ llu~3~Fate:
In ~igure i: 103g~ t~A~ nectio~al view of ~e apparatus
~o3cen do~n ~ ~to it~ ~-f~ ~n'c8 .
In ~igure 2: ~e~tion~1 do~a~ 1 o~ t~e piece wh~ ch ca~ be
~at~l~e~3 to the ~u~le.
~r~ F~e 3~ f~ed longit~ n~l s~c~tior~al v~ew of the
~13t~'~nt cal ~d of t~l3 appa~atus .
~cordi~g to the em}~oA~ t repreo~t~d, t~e
appa~atus for eor~ecti~g the poRit~ ~n of a sight o~
~ew~nder w~eh re~pect ~o ~e axi~3 of t~e bo;ce of the
we2~,pon, whlch i~ men~ioned con.~3ist~ of a cylindrical tu~e
(1) of diamete~ appropri~te or bo~g i~-tr~ed i~to the
we~Lpc~ . pla~e ~ t~e bolt, whi~h i6 hollcw and

9~ 22 ~3193810 EL;~AB[TRU SA [~1008/022
',`lg71~S~
e~u~pped ir~te~ally wi~ readi~gE~ ae the front a~d rear
res~io~s, of ~u~ ierlt size for ~cre~ a~ least t~o
piece~3 ther~to.
~rhe ~ir~t ~ ece w~lc}~ la colpl~d to ~i~ thread
i~ o~3 o~ cylindrical B~Lape~ ~ru~toconical to its rear,
dl~r~ ded irlto uectors of decrea~ing dia~eter ~4) . The
~1 a~et~3r-~ of the ~a~ious ~oators ~hich ~orm thiR piece
are ec~al to t~e cali~req o~ va~ waapon~ . ~t lea~ t
the ~ 'cer 8ector ~5), arr~nged at the eD.d o~
the ~ tocon~ cal pieco, ca~ be ~ncou~led. T~e ~u8to-
coD~ical piece is ~ierced t~roug~o~t itE~ le~s~t~, int~r-
s~ally, by a~ ax~l d~ct o~ narrow dia~eter (2-S mm) . This
axial duct i~ d--~iig~ed to allo~ a laser be~m to pas~
t~rough, ~s~ tted by a ~yct~ ~r--oent i~ anot~er int~ al
piece (7 ), ~7h~ c~ ~ ~ alco thr~ a~ at the E~ame reS~io~ a
the ~ stoco~cal o~d.
The laser ~eam emitter ~yet~, ~o~istl~g ~f a
655 ~m, 1 mW diode, with an achramatic le~, i8 ' ~lclu~d
i~L the piece ~7) co~lad to it~ aoxre~po~ powe~
nu~?ply, ~refera~ly i:~ t~e i~orm o~ 1.5 ~ batte~leE3 (6) a~d
to a s~itch ~2) BC~ to ~e ~ac~c e~d of the ba~ic
be . ~il o t~e a~ppara'tu~ i8 being ~no~ted, the laE~er
~tter i~ al~ed, by ~gor~ o~ s~Lall late:c~al ori~ice~
arra~ged o~ the baAic tube, wit~ the a~al duct of ~he
~rustoco~ical plece. ~ ~hl~ way it 1~3 poal~le ~or the
la~es ~ea~ to exit tkrough ~e m3~zzle, co~cidi~g with
the ~ci~ of the bore o~ t~e b~rrel o~' the ~aporl.
On the tu~e (1) o~ she baE~o piece lf~ mourlted a
~1Qe~re (3) ~b~ich casl ~lide w~ t~ ~light ~rictior~ o~e
O o7lte~- dia~'cer co~cide~ ~th ~e inte ~al ~ ter of
the recei~ver br~ ~ge ~hi ~ ou~-~ 'che ~olt ~o that, once
t~c apparatus ~ 8 i~rt~d, ~D~ place o~ the bolt, ~^k~rg
this ~leeve ~re ~o~ward c~pletely ~o~ilize~3 ehe
appar~tus w~ t~ re~pect to ~e we~apon.
Gi~ren tha'c the ~ ter~ o~ ~chc r~cei~rer ~ridge
or ~ou8i~g t~e bolt ar¢ vari~le f~ro~n one weapon to
ar~ot~er, a ~--t of ~lleevecl (3 ~ of -~ario~ di~eters will
be avail~le 60 th~ the right oae c:a~ be llsed in ~ach

96 il: 22 ~3193~10 EL~ABUR~i SA 1~1 OOa/022
!
q
Finally, optie~ ly, anot~er p~ ece ~ . 2) ~ill
b~ pro~ride~, ~hoE3e exte~al ~ape i8 ~tepped into variou~
co~ecut~ e cyl~drlcal ~ector~, and which i8 alEjo
pierced int~ally ~ith t~e ~ame ori~ice a~3 tha~ exist~
in th~ ~ tocon~ cal pielce, and ~itted with a i~la~ge
wh~c~ t~ 1t~3 l~Rer~io3 iIltO ~ha corre~pond~g muzzle,
d~pen~ ~ n~ on ~ ~8 callbre, b~i~g ~cactly a~tred ar~d
thQrefor~ co~ ncldent ~lth the s~x~ 8 of tb,e piercing in ~he
co~ical piece, wlth ~o po~sibil:Lty o beinsr ~ ncli~sd due
O to e~e s~opp$ng o~ itn ~rface ~ ~to ~on~eeutivo cylin-
ders .
t~it~ the apparatus deE~ig~ed ~ ~hi~ way, in o~de~
to u~e it: it will be sufficient to extract t~e bolt fro~
t:;he weaporl, ~d ir~ert tbe appa~tu in it~3 plac~3, w~ose
fru~to~o~ical ~d (~) wlll be ma~c~ed ~o the calibre of
th~ fro~t r~gion o~ ~he b~eech clo that, by ~n~a~ o~ the
approprlate alidi~g ~leo~e (3), ~ t is c!omple~cely m~tched
to the bolt e~ry bridgo, ~o that the axi o~ the appara-
tul2 will coincide exactly w~ th tl ~t of t~e bore o~ the
O ~a~On.
Optionally f i tting ~he ~ront piece (E''ig . 2 ) $n
the muzzle, ~e ~er~al ~7ierc~g ther~of aleo coi~cides
w~th the aaid bore axis, sc~ t~at, o~ act~ua~ins t~e switch
(2) c;~ ~he lase~ beam e~G~ tter 8y~tem, the latter wall
S ~hy~lically repre~t the bore axi~ and, beiIlg proj ected
o~ a ~lat ~urface, a ~pot o~ 1~ ~t will be produced which
co~resp~ to the impact in the ca~e of ~iring, as~lmtng
t~t t~e bullet doe~ not a~ffer a drop at thiB di8t~nce.
Proj ectlllg thi~ spot o~' light o~to ~ target
0 situa~ed 8t the di~;~ce which i~ reg~l~rod in ~ac~ case,
the sn~ han~ oS the ~ht or ~ wfinder will be actu-
atod to ~sLake the cro~ ~ po~nt of th~ 13ight coincide
with the 0pot o~ light ~ro; e~ted t ~ough t~e bore axis o~
~e weapon. It i~ not nece~sasy tc~ ;mmo~ilize the w~aL~c~
to car~r out t~ e~a~ion.
I'c ia ob~riouQ ~a~ thiY operation ~a~ b~ carried
out ~y the ~hooter him~ , including "~ ~3itu", si~ce
t~ procedur~3 r~ r~d to ~ise ~ t are ~le, requl~i~g
no cp~:cial ~i~e to carry them out r~or ~peciali~e ~kill~,

9~ 23 553193810 ELZ.4B~TR~ SA
1~1010/022
_ 7 _ 2 1 ~ 7 i `,
po~ ble er~or~ b~ll~g cor~ected at t~e ~Le place ~e~e
the ~ ~r~n 1~3 to be uaed, ~y wh~c~ po88i~1e ~ub~e~e~t
~ladjustment~, ~y tra~port and h~ 311ng ~ general, are
dl i ~i r~ted .
For th~ aos~rect~ on, targets pro.-~ ded ~or v;3rio~s
di8tance~ c~ b~ u~ed, ~-nce parallax i~ not t~e ~eame for
~ort arld lo~g dlsta~ce~.
~ e f~o~ aterial~ ~d ~ n Bio~8 can be ~rari -
a~le and, in ~eD.e~al, a~ything w~ich i~ arlc~ llary ar~d
o~y, a~ lo~g a~ it doe8 Uot alter, ~-h~e or ~nodi~y
th~ e~esltlal I~ature o~ thQ pU~po~e w~ich haL ~ee~
delscribed, r~n~inB ~o~er~d Wit~ e sCope of~ protectior~
of t~e i~re~t:~ or~ deE3cribed.

Dessin représentatif