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1. 发明专利

CA1180584A DRUM MAGAZINE FOR A GUN 未知
公开(公告)号：CA1180584A
公开(公告)日：1985-01-08
申请号：CA391952
申请日：1981-12-10
申请人： SINGAPORE CHARTERED IND
发明人： SULLIVAN LEROY J , WATERFIELD ROBERT L
IPC分类号： F41A9/54 , F41A9/73 , F41A17/38 , F41C25/10
摘要： DRUM MAGAZINE FOR A GUN A drum magazine for a gun has a circularly cross-sectioned housing (40) with a feed throat (415) extending from the housing for releasing cartridges and concentric sprockets (42, 43, 44) having serrations nesting cartridges. A torsion spring (46) is arranged to rotatingly drive the sprockets and feed ramps (434, 441, 455, 455', 471, 471') are provided for assisting the cartridges to traverse from the sprockets to the feed throat (415). In one aspect, a U-shaped pivotal pusher (47) is nested on the innermost sprocket (44) until de-nested by the feed throat ramp to push the last six cartridges to the feed lips (418, 417) terminating the feed throat (415). A last round stop actuator (48) is provided which travels with pusher (47). In another aspect of this invention one of the lips (417) is pivotally biassed to act as a one way valve such that in one position cartridges are prevented from being ejected in a direction perpendicular to the housing axis and yet cartridges may be inserted into the housing in a direction perpendicular to the housing axis. Another aspect of the invention provides a latch (487, 489) between the outer sprocket (42) and the housing (40) to prevent rotation of the outer sprocket in a counter direction to the direction of feeding cartridges out of the magazine until the intermediate sprocket (43) is rotated in said counter direction a predetermined amount. A feature provides a connector (485) which is connected to the outer sprocket (42) and which passes through the outer sprocket (42) to engage with the cartridges nested in the intermediate sprocket (43) so that by virtue of the connector the sprockets (42, 43) rotate together. A similar connector (486) is also provided between the intermediate sprocket (43) and the inner sprocket (44).

2. 发明专利

DE3072102D1 DRUM MAGAZINE FOR A GUN 未知
公开(公告)号：DE3072102D1
公开(公告)日：1988-07-28
申请号：DE3072102
申请日：1980-12-11
申请人： SINGAPORE CHARTERED IND
发明人： SULLIVAN LEROY JAMES , WATERFIELD ROBERT L
IPC分类号： F41D10/24 , F41C25/10 , F41D10/38

3. 发明专利

PH21940A DRUM MAGAZINE FOR A GUN 未知
公开(公告)号：PH21940A
公开(公告)日：1988-04-15
申请号：PH31344D
申请日：1984-10-15
申请人： SINGAPORE CHARTERED IND
发明人： SULLIVAN LEROY JAMES , WATERFIELD ROBERT L
IPC分类号： F41A9/54 , F41A9/73 , F41A17/38 , F41C25/10

4. 发明专利

AT35313T 未知
公开(公告)号：AT35313T
公开(公告)日：1988-07-15
申请号：AT84101403
申请日：1980-12-11
申请人： SINGAPORE CHARTERED IND
发明人： SULLIVAN LEROY JAMES , WATERFIELD ROBERT L
IPC分类号： F41D10/24 , F41C25/10 , F41D10/38

5. 发明专利

AT13591T 未知
公开(公告)号：AT13591T
公开(公告)日：1985-06-15
申请号：AT80304480
申请日：1980-12-11
申请人： SINGAPORE CHARTERED IND
发明人： SULLIVAN LEROY JAMES , WATERFIELD ROBERT L
IPC分类号： F41D10/24 , F41C17/08 , F41C25/10 , F41D10/38

6. 发明专利

CA1181620A DRUM MAGAZINE FOR A GUN 未知
公开(公告)号：CA1181620A
公开(公告)日：1985-01-29
申请号：CA448300
申请日：1984-02-24
申请人： SINGAPORE CHARTERED IND
发明人： SULLIVAN LEROY J , WATERFIELD ROBERT L
IPC分类号： F41C25/10
摘要： DRUM MAGAZINE FOR A GUN A drum magazine for a gun has a circularly cross-sectioned housing (40) with a feed throat (415) extending from the housing for releasing cartridges and concentric sprockets (42, 43, 44) havinc3 serrations nesting cartridges. A torsion spring (46) is arranged to rotatingly drive the sprockets and feed ramps (434, 441, 455, 455', 471, 471') are provided for assisting the cartridges to traverse from the sprockets to the feed throat (415). The feed throat has two lips and one of the lips (417) is pivotally biassed to act as a one way valve such that in one position cartridges are prevented from being ejected in a direction perpendicular to the housing axis and yet cartridges may be inserted into the housing in a d.irection perpendicular to the housing axis.

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