CA1139139A - Sabot for black powder rifles - Google Patents
Sabot for black powder riflesInfo
- Publication number
- CA1139139A CA1139139A CA000339328A CA339328A CA1139139A CA 1139139 A CA1139139 A CA 1139139A CA 000339328 A CA000339328 A CA 000339328A CA 339328 A CA339328 A CA 339328A CA 1139139 A CA1139139 A CA 1139139A
- Authority
- CA
- Canada
- Prior art keywords
- sabot
- bore
- ball
- appendages
- muzzle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Toys (AREA)
Abstract
SABOT FOR BLACK POWDER RIFLES
Abstract of the Disclosure A sabot for a muzzle loading black powder rifle is configurated as a cylindrical base with an obturator ring extending downward from its breech surface and a plurality of appendages upstanding from its muzzle surface. The obturator ring is deformable under explosive pressure to effect a sliding gas seal with the interior surface of the bore of the rifle.
The upstanding appendages are adapted to clasp a ball of smaller calibre than the bore of the rifle. They are preferably normally biased outwardly to release the ball as it clears the muzzle.
Abstract of the Disclosure A sabot for a muzzle loading black powder rifle is configurated as a cylindrical base with an obturator ring extending downward from its breech surface and a plurality of appendages upstanding from its muzzle surface. The obturator ring is deformable under explosive pressure to effect a sliding gas seal with the interior surface of the bore of the rifle.
The upstanding appendages are adapted to clasp a ball of smaller calibre than the bore of the rifle. They are preferably normally biased outwardly to release the ball as it clears the muzzle.
Description
3~
The present inven-tion pertains to black powder rifles, and provides a sabo-t for such rifles. Specifically, it relates to a sabot which improves the velocity and accuracy of ball projec-tiles fired from muzzle loading rifles. It also provides a means for adapting a ball to an oversized bore.
~ U.S. Patent 3,1~4,092, discloses and claims an ammunition sabot which adapts a slug of somewhat smaller dimension than the calibre of a rifle to a conventional cartrid~e casing for that rifle. The sabot functions to effect a gas seal with the interior surface of the barrel bore and to release the projectile ~slug) at a much higher velocity than would be possible without the use of the sabot. The sabot further permits tlle firing of a projectile from an oversized bore, thereby transferring a given amount of explosive energy to a projectile of smaller than usual mass. Sabots of the type disclosed by this patent in ef~ect substitu-te for a portion of the usual projectile a plastic collar which interfaces in c~h / ~
~ 3~
normal fasllioll Wit]l a conventioilal casinlg. Ihey are th-ls not directly adap-t.ll)le to mu~zle loading firearms.
~ 'lastic sllotgull wacls are commonly uscd in modern shotgun ammunition. Recently, an analogous structure3 sometimes callecl a "poly-patc]l" has beell suggested for use in muzzle loading rifles. These devices are structured as plastic cylin~
ders with cups at each end. A ball is inserted into the patc}l, sprue up, and tho resulting assembly is inserted into the mu7zle o the barrel, pa~cll down, and "rammed home" on top of t]le black powcler charge in the usual fashion practiced Wit}l con-ventional black powder muzzle loaclillg wads. The ball is held in the patch because the cups on tlle patch are sli~htly deel)er than the radius o the ball and slightly smaller in diclmeteI
than the diameter of tlle ball. Poly-patches are desig3led to work Wit]l balls only slightly (e g,, 002 to 0~ inches) smaller in diameter than the calibre size of the barrel. For example, a ball between about .490 to about .49~ inches in diameter would be loaded into a 50 calibre bore. The purpose of the poly-patch is to facilitate reloading. The suppliers of these de~ices maintain that they provide usually as good accuracy as conventional clot}l ~atches. They are not intended to increase velocity or accuracy of the projectile or to adapt a smaller mass ball to an oversize bore.
Summary of the Inventioll The present invention provides a sabot specifically adal~ted for use in muzzle loadin~ black powder rifles. The sabot of this invention performs the functions of a traditional patch in that it may be ra]nmed atop a powder charge in the same fashion as a patch Compared to the patch, however, the sabot of this invention provides fol easier loading and elimi nates the need for messy lubrications while providing a better gas seal thall can be effected Wit]l a patch In addition, the sabot provides means for clasping a ball wi-thin the bore and~retaining it in its appropriate position immediately adjacent the powder charge until firin~.
The sabot of this invention will ordinarily be of unitary construction and m~ be fabricated from any of the materials disclosed by the aforementioned U.S.
Patent 3,164,092 as suitable for use as an ammunition sabot.
Ideally, it is fashioned, for example, injection molded, from a resilient polymeric material.
The sabot has a base with a circular cross-sectional diameter corresponding to the calibre of the bore of the rifle and having a muzzle side and a breech side.
Resilient obturation means extends from the breech side of the base and a plurality of spreading appendages upstand from the muzzle side of the base adapted to clasp a ball of a calibre smaller than the calibre of the bore when the appendages are placed in contact withthe interior surface of the bore.
I'he surface of the base intended to enter the bore,that is, the surface which is rammed against a powdex charge, is referred to herein as the breech side while the opposite side may be referred to as the muzzle side. The resilient obturation element extending from the breech side of the base downward, i.e., towards the powder charge in one form of the invention may be a short cylindrical ring which is distorted under the influence oE explosive pressure outward to contact the interior surface of the bore, thereby effecting a sliding gas seal. This ring may be recessed slightly from the perimeter of the base to facilitate entry into the muzzle end of the bore. The plurality of appendages (wall segments) extend from the muzzle side of 3 the base. These appendages may, but need not necessarily, ~i tm/~ 3-effect a continuous wall. Tha-t is, individual segments may be spaced with respect -to adjacent segments. In any event, they are adapted to clasp a ball of a calibre smaller than the calibre of the bore when they are placed in contact with the interior surface of the bore. Ideally, the segments are molded or otherwise biased into a somewhat open position (outward, away from each other) so that a ball may be more readily inserted between them, and also, to assist in releasing the ball when the ball and sabot exit the muzzle after firing. In one embodiment of the invention, the ~uzzle side of the base may include a hollow de,~ression located to receive a ball and the individual appendages ma~ include indentations located to interEace with the surface of the ball. Generally, it is most convenient for the depress:ion and the surface configurations to be cooperatively adapt~d to clasp a ball. This adaptation may be effected by providing both the depression and the indentations with approximately spherical surface configurations corresponding to the spherical surface of the ball.
BRIEF DESC~IPTION OF THE DR~WINGS
In the drawings, which illustrate what is presently regarded as the best mode for carrying out the invention:
FIG. 1 is a view in elevation showing a ball within a sabot of this invention as configurated when inserted within the bore of a rifle.
FIG. 2 is a plan view of the sabot/ball assembly structure illustrated by FIG. l;
FIG. 3 is a cross-sectional view taken along the section line 3-3 of FIG. 2 looking in the direc-tion of the arrows;
FIG. d is a view simllar to FIG. 1 prior to insertion of the sabot/ball assembly into a muzzle;
FIG. 5 is a pictorial view of the sabot of this tm~ ~
~l~3~
invention in expanded condit.ion after firincJ; and ~ FIG. 6 is a partial view in section taken aloncJ
the section line 6-6 of FIG. 5 viewed in the direction of the arrows.
DESCRIPTION OF THE IL USTRATED EMBODIMENT
Referrinc3 to the drawings~ a ball 10 is inser-ted ~t tm/~ 4a-~.3~
Wit}l the Spln~e 11 Up in a recess 12 ~l~lG. 3~ o r a sabot 13 o this invcntion. The recess 12 is con:fio~lratcd to clasp the ball 10 as sho~n, beiilg dcfinc(l hy an appro.xi]llately splleli-cal del)ression 15 in the basc 16 of the sabot and a~proximately spherically shaped indellted ~or-tions 18 of the several aI~)en(l~
ages 1~ extend;.llg up~rard from t~le base 16. FI~. 4 SllO~S tlle appendages 1~ in thcir initial condition, biased slightly out from each other. When the sabot is inserted into the muzzle end of the bore of a ri:Ele, the appendages 19 are compressed towards the ball 10, as best seen .Erom FIGS. l, 2 and 3.
An obturator ring 22 is shown sli.ghtly recessed from the perimeter 23 of the base l~. This rlng 22 defllles a cavity
The present inven-tion pertains to black powder rifles, and provides a sabo-t for such rifles. Specifically, it relates to a sabot which improves the velocity and accuracy of ball projec-tiles fired from muzzle loading rifles. It also provides a means for adapting a ball to an oversized bore.
~ U.S. Patent 3,1~4,092, discloses and claims an ammunition sabot which adapts a slug of somewhat smaller dimension than the calibre of a rifle to a conventional cartrid~e casing for that rifle. The sabot functions to effect a gas seal with the interior surface of the barrel bore and to release the projectile ~slug) at a much higher velocity than would be possible without the use of the sabot. The sabot further permits tlle firing of a projectile from an oversized bore, thereby transferring a given amount of explosive energy to a projectile of smaller than usual mass. Sabots of the type disclosed by this patent in ef~ect substitu-te for a portion of the usual projectile a plastic collar which interfaces in c~h / ~
~ 3~
normal fasllioll Wit]l a conventioilal casinlg. Ihey are th-ls not directly adap-t.ll)le to mu~zle loading firearms.
~ 'lastic sllotgull wacls are commonly uscd in modern shotgun ammunition. Recently, an analogous structure3 sometimes callecl a "poly-patc]l" has beell suggested for use in muzzle loading rifles. These devices are structured as plastic cylin~
ders with cups at each end. A ball is inserted into the patc}l, sprue up, and tho resulting assembly is inserted into the mu7zle o the barrel, pa~cll down, and "rammed home" on top of t]le black powcler charge in the usual fashion practiced Wit}l con-ventional black powder muzzle loaclillg wads. The ball is held in the patch because the cups on tlle patch are sli~htly deel)er than the radius o the ball and slightly smaller in diclmeteI
than the diameter of tlle ball. Poly-patches are desig3led to work Wit]l balls only slightly (e g,, 002 to 0~ inches) smaller in diameter than the calibre size of the barrel. For example, a ball between about .490 to about .49~ inches in diameter would be loaded into a 50 calibre bore. The purpose of the poly-patch is to facilitate reloading. The suppliers of these de~ices maintain that they provide usually as good accuracy as conventional clot}l ~atches. They are not intended to increase velocity or accuracy of the projectile or to adapt a smaller mass ball to an oversize bore.
Summary of the Inventioll The present invention provides a sabot specifically adal~ted for use in muzzle loadin~ black powder rifles. The sabot of this invention performs the functions of a traditional patch in that it may be ra]nmed atop a powder charge in the same fashion as a patch Compared to the patch, however, the sabot of this invention provides fol easier loading and elimi nates the need for messy lubrications while providing a better gas seal thall can be effected Wit]l a patch In addition, the sabot provides means for clasping a ball wi-thin the bore and~retaining it in its appropriate position immediately adjacent the powder charge until firin~.
The sabot of this invention will ordinarily be of unitary construction and m~ be fabricated from any of the materials disclosed by the aforementioned U.S.
Patent 3,164,092 as suitable for use as an ammunition sabot.
Ideally, it is fashioned, for example, injection molded, from a resilient polymeric material.
The sabot has a base with a circular cross-sectional diameter corresponding to the calibre of the bore of the rifle and having a muzzle side and a breech side.
Resilient obturation means extends from the breech side of the base and a plurality of spreading appendages upstand from the muzzle side of the base adapted to clasp a ball of a calibre smaller than the calibre of the bore when the appendages are placed in contact withthe interior surface of the bore.
I'he surface of the base intended to enter the bore,that is, the surface which is rammed against a powdex charge, is referred to herein as the breech side while the opposite side may be referred to as the muzzle side. The resilient obturation element extending from the breech side of the base downward, i.e., towards the powder charge in one form of the invention may be a short cylindrical ring which is distorted under the influence oE explosive pressure outward to contact the interior surface of the bore, thereby effecting a sliding gas seal. This ring may be recessed slightly from the perimeter of the base to facilitate entry into the muzzle end of the bore. The plurality of appendages (wall segments) extend from the muzzle side of 3 the base. These appendages may, but need not necessarily, ~i tm/~ 3-effect a continuous wall. Tha-t is, individual segments may be spaced with respect -to adjacent segments. In any event, they are adapted to clasp a ball of a calibre smaller than the calibre of the bore when they are placed in contact with the interior surface of the bore. Ideally, the segments are molded or otherwise biased into a somewhat open position (outward, away from each other) so that a ball may be more readily inserted between them, and also, to assist in releasing the ball when the ball and sabot exit the muzzle after firing. In one embodiment of the invention, the ~uzzle side of the base may include a hollow de,~ression located to receive a ball and the individual appendages ma~ include indentations located to interEace with the surface of the ball. Generally, it is most convenient for the depress:ion and the surface configurations to be cooperatively adapt~d to clasp a ball. This adaptation may be effected by providing both the depression and the indentations with approximately spherical surface configurations corresponding to the spherical surface of the ball.
BRIEF DESC~IPTION OF THE DR~WINGS
In the drawings, which illustrate what is presently regarded as the best mode for carrying out the invention:
FIG. 1 is a view in elevation showing a ball within a sabot of this invention as configurated when inserted within the bore of a rifle.
FIG. 2 is a plan view of the sabot/ball assembly structure illustrated by FIG. l;
FIG. 3 is a cross-sectional view taken along the section line 3-3 of FIG. 2 looking in the direc-tion of the arrows;
FIG. d is a view simllar to FIG. 1 prior to insertion of the sabot/ball assembly into a muzzle;
FIG. 5 is a pictorial view of the sabot of this tm~ ~
~l~3~
invention in expanded condit.ion after firincJ; and ~ FIG. 6 is a partial view in section taken aloncJ
the section line 6-6 of FIG. 5 viewed in the direction of the arrows.
DESCRIPTION OF THE IL USTRATED EMBODIMENT
Referrinc3 to the drawings~ a ball 10 is inser-ted ~t tm/~ 4a-~.3~
Wit}l the Spln~e 11 Up in a recess 12 ~l~lG. 3~ o r a sabot 13 o this invcntion. The recess 12 is con:fio~lratcd to clasp the ball 10 as sho~n, beiilg dcfinc(l hy an appro.xi]llately splleli-cal del)ression 15 in the basc 16 of the sabot and a~proximately spherically shaped indellted ~or-tions 18 of the several aI~)en(l~
ages 1~ extend;.llg up~rard from t~le base 16. FI~. 4 SllO~S tlle appendages 1~ in thcir initial condition, biased slightly out from each other. When the sabot is inserted into the muzzle end of the bore of a ri:Ele, the appendages 19 are compressed towards the ball 10, as best seen .Erom FIGS. l, 2 and 3.
An obturator ring 22 is shown sli.ghtly recessed from the perimeter 23 of the base l~. This rlng 22 defllles a cavity
2~ The foree o:E ex~losive pressure upon d;.schargc clls-torts tlle obturator 22, as best shown by FIG. 6 into contaet W:it.}
tlle internal surface of the bore, thereby ef:Eecting a goocl gas seal~
After discharge of the firearm, the sabot 13 is pushed through the bore~ and upon exlt the appenclages l9 spread, thereby increasing the resistance of the sabot 13 to travel while releasing tlle ball 10. As a consequence, loading and firin~ is accomI~lisIled more rapidly with a reduced need or cleaning and oili.ng, as compared to conventional patch rammillg.
In addition, the ball 10 is projected at ]ligller velocity and with greater accuracy tllan is typi.cal for blac~ powder rifles.
Moreover, by selccting sabots of appropriate size, balls of varying diameters may be fired from a given oversize rifle bore. Typically, a .45 calibre ball may bc discharged from a .50 calibre black po~der rifle, for example. .Of course, even smaller projectiles may be adapted for discharge from a .50 calibre bore by proper selection of a sabot constructcd in accordanc:e ~ith this invelltion Reference in this disclosure to details of the 1~3~
il:lustrated ~ bodilllell-t i.s not intcndcd to restrict the sco~c of the appende~ clai~s, Wlli.C]l -thcmselvcx rcc:ite tllo~se fcatures regardcd as essential to the inVe31tiO]I.
tlle internal surface of the bore, thereby ef:Eecting a goocl gas seal~
After discharge of the firearm, the sabot 13 is pushed through the bore~ and upon exlt the appenclages l9 spread, thereby increasing the resistance of the sabot 13 to travel while releasing tlle ball 10. As a consequence, loading and firin~ is accomI~lisIled more rapidly with a reduced need or cleaning and oili.ng, as compared to conventional patch rammillg.
In addition, the ball 10 is projected at ]ligller velocity and with greater accuracy tllan is typi.cal for blac~ powder rifles.
Moreover, by selccting sabots of appropriate size, balls of varying diameters may be fired from a given oversize rifle bore. Typically, a .45 calibre ball may bc discharged from a .50 calibre black po~der rifle, for example. .Of course, even smaller projectiles may be adapted for discharge from a .50 calibre bore by proper selection of a sabot constructcd in accordanc:e ~ith this invelltion Reference in this disclosure to details of the 1~3~
il:lustrated ~ bodilllell-t i.s not intcndcd to restrict the sco~c of the appende~ clai~s, Wlli.C]l -thcmselvcx rcc:ite tllo~se fcatures regardcd as essential to the inVe31tiO]I.
Claims (8)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A sabot for a black powder rifle comprising:
a base having a circular cross-sectional diameter corresponding to the calibre of the bore of said rifle and having a muzzle side and a breech side;
resilient obturation means extending from the breech side of said base; and a plurality of spreadable appendages upstanding from the muzzle side of said base adapted to clasp a ball of a calibre smaller than the calibre of said bore when said appendages are placed in contact with the interior surface of said bore.
a base having a circular cross-sectional diameter corresponding to the calibre of the bore of said rifle and having a muzzle side and a breech side;
resilient obturation means extending from the breech side of said base; and a plurality of spreadable appendages upstanding from the muzzle side of said base adapted to clasp a ball of a calibre smaller than the calibre of said bore when said appendages are placed in contact with the interior surface of said bore.
2. A sabot according to Claim 1 wherein said obturation means includes a distortable cylindrical ring adapted to flow under the influence of explosive pressure to effect a sliding seal with the interior surface of said bore.
3. A sabot according to Claim 1 wherein the muzzle side of said bore includes a depression located to receive a said ball.
4. A sabot according to Claim 3 wherein said depression is approximately spherical in surface configuration and said appendages also include indentations with approximately spherical surface configurations, said depressions and indentations all being mutually adapted to engage the surface of a said ball.
5. A sabot according to Claim 1 wherein said appendages are normally biased outward with respect to each other.
6. A sabot according to Claim 5 wherein said obturation means includes a cylindrical ring recessed from the perimeter of said base to facilitate entry of said sabot through the muzzle end of a said bore, distortable outward under explosive pressure to effect a sliding gas seal with the interior of said bore.
7. A sabot according to Claim 6 wherein the muzzle side of said base and the interior sides of said appendages are cooperatively adapted to clasp a said ball.
8. A sabot according to Claim 5 wherein the entire sabot is molded in its entirety from a resilient polymeric material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US3150079A | 1979-04-19 | 1979-04-19 | |
| US031,500 | 1979-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1139139A true CA1139139A (en) | 1983-01-11 |
Family
ID=21859808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000339328A Expired CA1139139A (en) | 1979-04-19 | 1979-11-07 | Sabot for black powder rifles |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1139139A (en) |
-
1979
- 1979-11-07 CA CA000339328A patent/CA1139139A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7207275B1 (en) | Firearm projectile | |
| KR870002025B1 (en) | Rifle ammunition | |
| US7021219B1 (en) | Non-lethal telescoping cartridge | |
| US7302892B1 (en) | Sabot and shotshell combination | |
| US4152858A (en) | Fast loader for muzzle-loader | |
| US4142467A (en) | Projectile with sabot | |
| US3598057A (en) | Canister small arms cartridge | |
| US5621187A (en) | Method for loading a muzzle-loading firearm | |
| US5503080A (en) | Bomb retaining device | |
| US6067909A (en) | Sabot pressure wad | |
| US2767656A (en) | Canister loading using stacked cylinders | |
| US3062145A (en) | Slug for a shotgun shell | |
| US4466209A (en) | Loader for muzzle-loading firearms | |
| US4175493A (en) | Patch for muzzle loading firearms | |
| US4770098A (en) | Telescoped ammunition round | |
| US5415102A (en) | Muzzle loading sabot | |
| US5443010A (en) | Muzzle loading rifle projectile | |
| US3266421A (en) | Pouch-wad | |
| US4974357A (en) | Speed loading device for a muzzle loading firearm | |
| CA1139139A (en) | Sabot for black powder rifles | |
| EP0103575A1 (en) | A pellet for an air, gas or spring gun. | |
| GB2032070A (en) | Cartridges | |
| US5063852A (en) | Forward full caliber control tube for a cased telescoped ammunition round | |
| US5710391A (en) | Recoil reducer wad for ammunition | |
| EP0723649B1 (en) | Recoil reducer wad for shotgun ammunition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |