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1. 发明授权

US3771415A Rifle conversion assembly 失效
标题翻译： RIFLE CONVERSION ASSEMBLY
公开(公告)号：US3771415A
公开(公告)日：1973-11-13
申请号：US3771415D
申请日：1972-02-07
申请人： COLT IND OPERATING CORP
发明人： INTO H , COSTELLO R
IPC分类号： F41A3/78 , F41A11/02 , F41A15/14 , F41C21/12
CPC分类号： F41A3/78 , F41A11/02 , F41A15/14
摘要： An assembly is provided for converting a firearm of standard caliber to one of a smaller caliber and includes a conversion chamber adaptor with a bolt mounted for movement between recoil and battery positions. A backplate damper assists in maintaining the operating components in assembly and absorbs recoil impact energy of the recoiling mass upon firing of the weapon. When the conversion assembly is installed in a weapon having a buffer disposed rearwardly of its chamber, the backplate damper additionally serves to transmit that energy to the buffer.
摘要翻译：提供了用于将标准口径的火器转换成较小口径之一的组件，并且包括具有安装用于在后座和电池位置之间移动的螺栓的转换室适配器。背板阻尼器有助于将操作部件保持在组装状态，并且在武器射击时吸收回弹块的反冲冲击能量。当转换组件安装在具有设置在其腔室后方的缓冲器的武器中时，背板阻尼器还用于将该能量传送到缓冲器。

2. 发明授权

US3768191A Chamber liner for caseless ammunition firearms 失效
标题翻译：无焰弹药火焰室
公开(公告)号：US3768191A
公开(公告)日：1973-10-30
申请号：US3768191D
申请日：1971-04-26
申请人： CORNELL AERONAUTICAL LABOR INC
发明人： VASSALLO F
IPC分类号： F41A21/12 , F41C21/12 , F41F17/06
CPC分类号： F41A21/12
摘要： A caseless ammunition firearm having a bore communicating with a barrel containing a caseless propellant and a projectile, the walls of the barrel containing a removable low thermal conductivity sleeve or liner fabricated of polytetrafluoroethylene.
摘要翻译：一种无弹药弹药枪，具有与含有无内爆推进剂和抛射物的桶相通的孔，桶的壁包含由聚四氟乙烯制成的可移除的低导热套筒或衬套。

3. 发明授权

US4702027A Thermal liner for gun firing chamber 失效
标题翻译：喷枪室用热衬套
公开(公告)号：US4702027A
公开(公告)日：1987-10-27
申请号：US900129
申请日：1986-08-18
申请人： Edward T. Stanley
发明人： Edward T. Stanley
IPC分类号： F41A21/12 , F41C21/12 , F41F17/08
CPC分类号： F41A21/12
摘要： A liner for the firing chamber of a gun, designed to prevent ammunition "cook-off". The liner minimizes flow of heat into the chamber wall, incident to the combustion process. The liner also retards the flow of heat in the reverse direction, i.e. from the chamber wall into a chambered round. Liner design is such that the liner can be removed and replaced by a new liner when it is damaged.
摘要翻译：用于枪的射击室的衬垫，旨在防止弹药“熄火”。衬套最小化入室壁的热量进入燃烧过程。衬里还在相反方向上延迟热量流，即从室壁延伸成圆形的圆形。衬垫设计使得衬垫可以在被损坏时被新衬里移除并替换。

4. 发明授权

US3793922A Collet-chamber retarding system for weapons 失效
标题翻译：用于武器的瓶盖延迟系统
公开(公告)号：US3793922A
公开(公告)日：1974-02-26
申请号：US3793922D
申请日：1973-01-22
申请人： ANGELL R , FRIELICH R
发明人： FRIELICH R , ANGELL R
IPC分类号： F41A3/36 , F41A3/38 , F41A3/62 , F41A3/78 , F41A21/12 , F41D3/00 , F41C21/12 , F41F17/00
CPC分类号： F41A3/38 , F41A3/36 , F41A3/62 , F41A3/78 , F41A21/12
摘要： A weapon whose barrel terminates in cartridge-receiving chamber which, in the firing state, is surrounded by the sleeve of a breech-closing mechanism. The chamber is longitudinally slotted to define a set of flexible fingers extending rearwardly from an unslotted forward section. When the cartridge is fired, the resultant high gas pressure therein causes momentary dilation of the casing, which then presses outwardly against the forward section of the chamber and the set of fingers in the rear section threof. The pressure exerted by the casing against the forward section of the chamber produces a gas seal preventing the escape of gas into the breech of the weapon, while the pressure exerted against the set of fingers causes deflection thereof, whereby the fingers or clips associated therewith frictionally engage the inner surface of the surrounding sleeve to lock the breechclosing mechanism and to retard the release thereof until the gas pressure has diminished to a safe level, permitting the casing to contract to assume its original state.
摘要翻译：其枪管终止在药筒接收室中的武器，其在点火状态下被膛塞关闭机构的套筒包围。腔室是纵向开槽的，以限定从未切开的前部部分向后延伸的一组柔性指状物。当筒被烧制时，其中所产生的高气体压力引起壳体的瞬时膨胀，其然后向外压靠在腔室的前部部分和后部部分的手指组中。套管抵抗腔室的前部施加的压力产生气体密封，防止气体逸出武器的后膛，同时施加在手指组上的压力导致其偏转，由此与其相关联的手指或夹子接合周围套筒的内表面以锁定后膛关闭机构并延迟其释放直到气体压力降低到安全水平，允许套管收缩以呈现其原始状态。

5. 发明授权

US4674217A Firearm with reversible barrel 失效
标题翻译：枪支与可逆桶
公开(公告)号：US4674217A
公开(公告)日：1987-06-23
申请号：US864429
申请日：1986-05-19
申请人： Michael Matievich
发明人： Michael Matievich
IPC分类号： F41A21/16 , F41A21/48 , F41C21/00 , F41C21/12 , F41C21/22
CPC分类号： F41A21/482 , F41A21/16
摘要： For firing bullets or cartridges of different lengths but the same caliber, there is provided a barrel which is threaded at both ends and reversible, with different-length bores in each end. There is desirably also a protective cap for the threads at the distal end of the firearm, and also, at each end of the barrel, a lug or projection with opening therein to aid in securing the reversible barrel onto the part of the firearm proximal to the user.
摘要翻译：为了发射不同长度但相同口径的子弹或药筒，提供了一个在两端螺纹并且可逆的筒体，每个端部具有不同长度的孔。理想地还有一个用于枪支远端处的螺纹的保护帽，并且在枪管的每一端还有一个在其中开口的凸耳或突起，以帮助将可逆筒固定在枪支的部分上用户。

6. 发明授权

US3858342A High powered rifle breech 失效
标题翻译：高功率支架
公开(公告)号：US3858342A
公开(公告)日：1975-01-07
申请号：US32488873
申请日：1973-01-18
申请人： LANGSFORD ARTHUR WILLIAM
发明人： LANGSFORD ARTHUR WILLIAM
IPC分类号： F41A21/12 , F41C21/12
CPC分类号： F41A21/12
摘要： A rifle breech having a recess arranged to receive a cartridge container, the cartridge container being a tubular member the outer walls of which are engaged by the walls of the recess when inserted therein, a cartridge container having a central bore of diameter to engage and retain the rim and body of a cartridge, the cartridge container being effective in preventing rupture of the cartridge case and preventing blow back from the barrel, thereby enabling increased quantities of propellant to be used to effect consequential increased projectile velocities.
摘要翻译：具有设置成容纳盒式存储器的凹部的步枪后座，所述盒容器是管状构件，其外壁在插入其中时通过所述凹部的壁与所述壁接合;盒容器，具有直径为接合和保持的中心孔药筒的边缘和主体，药筒容器有效地防止药筒壳体的破裂并防止药筒的吹回，从而使得可以使用更多量的推进剂来实现随之而来的增加的射弹速度。

7. 发明授权

US3845581A Firearms 失效
标题翻译：枪支
公开(公告)号：US3845581A
公开(公告)日：1974-11-05
申请号：US26932572
申请日：1972-07-06
申请人： DIRECCION GENERAL DE INVESTIGA
发明人： INFANTINO O
IPC分类号： F41A3/74 , F41A21/12 , F41C21/12
CPC分类号： F41A3/74 , F41A21/12
摘要： A firearm is provided which has a barrel including a bore having helical grooves and lands between said grooves, and a detachable chamber comprising a tubular body having an inner diameter equal to the diameter of the bore across the lands defined by the helical grooves, one end of the tubular body abuting against the base of the barrel, and the other end having an annular recess adapted to receive and retain a peripheral flange at the rear end of a projectile adapted to be fired from the firearm.
摘要翻译：提供了一种枪械，其具有筒体，所述枪管包括具有螺旋槽的孔和在所述槽之间的平台，以及可拆卸腔室，其包括管状体，所述管状体的内径等于由所述螺旋槽限定的所述焊盘的所述孔的直径，所述管状体抵靠所述枪管的底座，并且所述另一端具有适于在适于从所述枪支被射出的射弹的后端处接收和保持周边凸缘的环形凹部。

8. 发明授权

US3641869A Cartridge chamber structure to compensate for variable headspace 失效
标题翻译：用于补偿可变头枕的盒式结构
公开(公告)号：US3641869A
公开(公告)日：1972-02-15
申请号：US3641869D
申请日：1970-06-09
申请人： US ARMY
发明人： BUCHANAN JAMES F , FEVER CLIFFORD E LA
IPC分类号： F41A21/12 , F41C21/12 , F41F17/00
CPC分类号： F41A21/12
摘要： In an automatic gun wherein the headspace varies with the thermal elongation of the barrel during firing operation, the barrel chamber is provided with at least three control pins which are disposed parallel to the longitudinal axis of the chamber so as to act simultaneously upon the rim of the chambered cartridge to compensate by indentation of the rim for the variations in headspace and assure positive zero space between the cartridge and breechblock throughout the range of headspace variations and greater than zero space between the barrel and breechblock when the gun is in battery.
摘要翻译：在自动喷枪中，其中顶部空间随着喷射操作期间筒的热伸长而变化，筒室设有至少三个控制销，它们平行于腔室的纵向轴线设置，以便同时作用在桶的边缘上腔室可以通过边缘的压痕来补偿顶部空间的变化，并确保在喷枪处于电池状态时，在顶部空间变化范围之间的筒和枪闩之间大于零的空间之间的盒和后膛之间的零零空间。

9. 发明授权

US3611867A Emergency weapon for firing high-velocity grenade rounds 失效
标题翻译：用于发射高速公路GREENDE ROUNDS的紧急武器
公开(公告)号：US3611867A
公开(公告)日：1971-10-12
申请号：US3611867D
申请日：1969-11-03
申请人： US ARMY
发明人： SILSBY STANLEY D
IPC分类号： F41A21/28 , F41C27/06 , F42B5/03 , F41C21/12 , F41F17/00
CPC分类号： F41A21/28 , F41C27/06 , F42B5/035
摘要： A shoulder-supported weapon for firing high-velocity grenade rounds includes means for reducing the high-velocity and recoil forces to acceptable limits comprising an oversize barrel chamber which permits expansion of the case upon discharge of the round and immediate escape of the discharge gas between the case and projectile during initial acceleration of the projectile into flight. The escaping gas is vented from the chamber into a canister around the barrel and then back through a second set of ports into the barrel bore forwardly of the projectile. The gas escape system is closed when the projectile passes the second set of ports and the remaining trapped gas is used to propel the projectile from the barrel.

10. 发明授权

US4547988A Firearm system with cylinder bolt mechanism 失效
标题翻译：枪支系统带气缸螺栓机构
公开(公告)号：US4547988A
公开(公告)日：1985-10-22
申请号：US514815
申请日：1983-06-17
申请人： Lennart C. O. Nilsson
发明人： Lennart C. O. Nilsson
IPC分类号： F41A3/18 , F41C11/00 , F41C21/12
CPC分类号： F41A3/18
摘要： In a firearm with a cylinder bolt mechanism, a locking chamber (27) is arranged in a space in the barrel between the rear end of the barrel and the rear end of the cartridge chamber for a bolt tip (28) on the bolt. Behind the locking chamber in the barrel is arranged a separate locking ring (23) between a stop (25) in the receiver and the rear end of the barrel. The locking ring is provided with lugs and grooves, and the bolt head is provided with corresponding claws which are able to pass through the grooves in the locking ring and to be rotated into the locked position ahead of the lugs in the ring. By introducing the bolt complete with the bolt head into the barrel and locking it securely in this position, it is possible to achieve greater accuracy because the bolt head acts as a stiffening connection between the barrel and the receiver, so that these components of the firearm are unable to move relative to each other as the result of oscillations in the barrel when the cartridge detonates.The rotation of the bolt head may be produced by the axial movement of a bolt handle, whereby the rotational motion is achieved by causing the bolt handle to interact with a spiral groove in a bolt head, of which the bolt tip constitutes a front part. Alternatively, the rotational motion may be achieved by turning the bolt handle upwards and into recess in the bolt body, at the same time as the mainspring is tensioned by sliding between lock lugs arranged for this purpose.
摘要翻译： PCT No.PCT / SE81 / 00368 Sec。 371日期1983年6月17日第 102（e）日期1983年6月17日PCT申请日1981年12月11日PCT公布。公开号WO83 / 02153 日期：1983年6月23日。在具有气缸螺栓机构的枪械中，锁定室（27）布置在枪管的后端和枪管室的后端之间的空间中，用于螺栓尖端（ 28）在螺栓上。在筒体中的锁定室后面，在接收器中的止动件（25）和枪管的后端之间布置有分离的锁定环（23）。锁定环设置有凸耳和凹槽，并且螺栓头设置有相应的爪，其能够穿过锁定环中的凹槽并且旋转到环中的凸耳前方的锁定位置。通过将具有螺栓头的螺栓插入筒体并将其牢固地锁定在该位置中，可以实现更高的精度，因为螺栓头用作筒体和接收器之间的加强连接，使得枪支的这些部件当盒被引爆时，由于筒体的振荡而不能相对移动。螺栓头的旋转可以通过螺栓手柄的轴向移动来产生，由此通过使螺栓手柄与螺栓头中的螺旋槽相互作用来实现旋转运动，螺栓头中的螺栓槽构成前部。或者，旋转运动可以通过将螺栓手柄向上转动并进入螺栓体中的凹部中，同时通过为此布置的锁定凸耳之间的滑动而将发条拉紧。

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