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1. 发明专利

GB136581A Improvements in or relating to Ordnance Firing Mechanism. 未知
公开(公告)号：GB136581A
公开(公告)日：1919-12-22
申请号：GB588018
申请日：1917-04-28
申请人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
发明人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
IPC分类号： F41A19/49
摘要： 136,581. Dawson, Sir A. T., and Buckham, Sir G. T. April 28, 1917. Ordnance breech mechanism.-Relates to primer-lock firing-mechanism having a transversely-sliding lock-frame carrying a pivoted hammer. According to the invention, the lockframe carries a firing-spring having only one end free, which operates on one side of the hammer pivot for firing, and on the other side for rebound. The invention is shown applied to the primer-lock described in Specification 127,612, in which a lock-frame D moves on guides partly on the axial vent-bolt C and partly on the box slide B. The firing-hammer E is pivoted to the lockframe at e and has projections e , e on opposite sides of its pivot which engage a firing-spring plunger e mounted in a pocket in the lock-frame above the hammer. The plunger acts on the projection e to move the hammer forwards for firing, and on the projection e to give a rebound action to retract the striker. The firing-lanyard is attached to a hook E having a guard e which is displaced to free the lanyard and release the hammer by the engagement of a face e on the guard with a stop e on the lock-frame.

2. 发明专利

GB128245A Improvements in or relating to Ordnance Breech Mechanism. 未知
公开(公告)号：GB128245A
公开(公告)日：1919-06-26
申请号：GB932817
申请日：1917-06-28
申请人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
发明人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
IPC分类号： F41A3/08
摘要： 128,245. Dawson, Sir A. T., and Buckham, Sir G. T. June 28, 1917. Ordnance breech mechanism.-Relates to obturators of the " de Bange " type, wherein the axial vent bolt carries a nut or collar, serving as an abutment for the axial vent spring. According to the invention, the nut or collar is locked by a catch which is mounted on the carrier in an accessible position. In the construction shown in Figs. 4 and 5, the catch comprises a locking-pin D mounted radially in the rear part of the carrier A and engaging a groove C in the nut C. The pin D passes through a slot E in the sleeve E of a safety shutter E of the kind described in Specification 127,610. Fig. 9 shows a construction in which the nut is replaced by a collar or washer F serving for the attachment of a modified rifle lock F .

3. 发明专利

GB128395A Improvements in or relating to Rifles. 未知
公开(公告)号：GB128395A
公开(公告)日：1919-06-19
申请号：GB1012518
申请日：1918-06-19
申请人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
发明人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
IPC分类号： F41A5/18 , F41A17/66 , F41A19/34
摘要： 128,395. Dawson, Sir A. T., and Buckham, Sir G. T. June 19, 1918. Breech actions, sliding breech-block; converting.-Consists in converting a Service rifle into a gas-operated rifle by providing a gas cylinder attached to the barrel and communicating with the bore by a port, and a piston connected to a longitudinally-slidable sleeve which first rotates the breech-bolt and retracts the cocking piece and then retracts the breech-bolt. The invention also comprises a bolt-retaining catch and trip device to ensure single-shot firing and a safety device acting between the cocking-piece and the bolt to prevent firing until the bolt-operating sleeve has moved fully forwards. In the construction shown in Figs. 2 and 3, the cylinder A is arranged at the side of the barrel and contains a piston B which is connected by a rod B to a sleeve C. The sleeve is connected to the breechbolt by a pin and cam-slot, and has a part engaging the cocking-piece D. A handle C is provided for hand actuation. The bolt-retaining catch comprises a lever E, Fig. 8, adapted to engage a notch b' in the piston-rod B' to retain the bolt in its rear position after each discharge. The catch E is depressed when the trigger is pulled by means of a projection g on the sear acting on a trip piece F pivoted at the rear end of the catch. The trip piece F is rocked, during the continued pull of the trigger, by a projection f thereon engaging a fixed pin f , and is thereby disengaged from the sear, thus enabling the catch E to move into its engaging position. The safety device comprises a lever H, Fig. 11, pivoted to the cocking-piece D and adapted to engage a shoulder on the bolt as shown. During the final closing movement of the bolt-operating sleeve C, a part c on the sleeve engages the curved end of the lever and disengages it from the bolt. In a modification, the gas cylinder is arranged beneath the barrel, and the piston is connected to the operating-sleeve by two links, one on each side of the breech-body.

4. 发明专利

GB127892A Improvements in or relating to Ordnance Breech Mechanism. 未知
公开(公告)号：GB127892A
公开(公告)日：1919-06-19
申请号：GB861517
申请日：1917-06-15
申请人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
发明人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
IPC分类号： F41A3/08
摘要： 127,892. Dawson, Sir A. T., and Buckham, Sir G. T. June 15, 1917. Ordnance b r e e c h mechanism. - Relates to screw mechanism of the swinging - carrier type, in which the breech-actuating handlever is pivoted on the carrier to move about an axis parallel to the carrier hinge, and has a pin engaging a slot in t h e breech - screw. According to the invention, the pin is so arranged in relation to the pivot of the hand-lever that the pin passes over the dead-point, (i.e. in front of a transverse plane through the pivot of the hand-lever), to lock the mechanism in closed position. The invention is particularly applicable to small-calibre ordnance in which the breech-screw engages threads on the outside of the barrel. Fig. 2 shows, in plan, the breech-screw A rotatably mounted on a. carrier C hinged at C' to the gun and engaging threads on the outside of the barrel A. The screw is rotated for unlocking by a lever B pivoted at b to the carrier and having a spherical projection b engaging a longitudinal slot a in a rearward extension of the screw. After the unlocking movement, continued motion of the lever brings the projection b into engagement with a stop c on the carrier to swing the carrier and block aside about the hinge C', movement of the block relatively to the carrier being prevented by the engagement of a lug ax on the block beneath a projection a on the fixed part of the carrier hinge.

5. 发明专利

GB127890A Improvements in or relating to Ordnance Firing Mechanism. 未知
公开(公告)号：GB127890A
公开(公告)日：1919-06-19
申请号：GB861317
申请日：1917-06-15
申请人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
发明人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
IPC分类号： F41A19/08
摘要： 127,890. Dawson, Sir A. T., and Buckham, Sir G. T. June 15, 1917. Ordnance b r e e c h mechanism. - Relates to guns in which a rifle lock is employed as the fi r i n g - mechanism. According to the invention, a Martini lock is employed, and means, such as a Bowden wire operating upon suitable mechanism, is provided for operating the trigger from a suitable position on the gun mounting or cradle. A safety device to prevent firing except when the breech-screw is locked, may also be provided. In the construction shown in Figs. 1, 2, and 3, the Martini lock B is mounted at the rear of the axial vent plug. The usual cocking- lever is shortened and provided with an upstanding crank B . The trigger-operating mechanism comprises a Bowden wire D, a bell-crank lever D , a spring-controlled plunger E, and a bellcrank lever E acting on an extension b nf the trigger. The plunger E and bell-crank E' are mounted in an extension C on a. sleeve C' which turns with the breech-screw, so that the plunger E is in operative connexion with the bell-crank lever D only when the breech-screw is fully locked. A groove c in the extension C locks the trigger except when the breech is locked.

6. 发明专利

CA191015A ORDNANCE SIGHTING APPARATUS 未知
公开(公告)号：CA191015A
公开(公告)日：1919-06-17
申请号：CA191015D
申请日：1917-01-31
申请人： BUCKHAM GEORGE THOMAS , VICKERS LTD , DAWSON ARTHUR TREVOR
发明人： BUCKHAM GEORGE THOMAS , DAWSON ARTHUR TREVOR

7. 发明专利

GB126690A Improvements in or relating to Sighting Devices for Guns. 未知
公开(公告)号：GB126690A
公开(公告)日：1919-05-22
申请号：GB216917
申请日：1917-02-13
申请人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
发明人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
IPC分类号： F41G1/32
摘要： 126,690. Dawson, Sir A. T., and Buckham, Sir G. T. Feb. 13, 1917. Sights.-Relates to foresights made of glass or other transparent material illuminated by a luminous substance which is preferably radioactive. According to the invention, the foresight consists of a prism A having a reflecting surface a beneath which is situated the luminous substance A . In the construction shown, the prism is of triangular shape viewed from the rear. Fig. 3, and is protected at the front by a metal stop a .

8. 发明专利

GB124839A Improvements in or relating to the Firing Mechanism of Ordnance. 未知
公开(公告)号：GB124839A
公开(公告)日：1919-04-10
申请号：GB641616
申请日：1915-06-02
申请人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
发明人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
IPC分类号： F41A19/08
摘要： 124,839. Dawson, Sir A. T., and Buckham, Sir G. T. June 2,1915. Ordnance breech mechanism.-Relates to firing- mechanism of the slip-look type comprising a rocking hammer with which engages a lanyard that becomes completely detached from the hammer as it is retracted to fire the gun. The invention consists in connecting the lanyard to a guard member on the hammer, which member is moved to liberate the lanyard as the hammer completes its rearward movement. Fig. 1 shows, in sectional plan, the invention applied to firing-mechanism of the primer-lock type. To fire the gun when the lock-frame B is in the closed position shown, the hammer C is moved rearwards about its pivot c against the action of a spring C by a lanyard connected to a pivoted hook d'. When the member d of the hook contacts with a fixed surface b , the lanyard pulls away from the hammer, which is then impelled forwards by the spring C .

9. 发明专利

GB191516988A Improvements in or relating to Ordnance. 未知
公开(公告)号：GB191516988A
公开(公告)日：1919-03-27
申请号：GB191516988D
申请日：1915-12-02
申请人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
发明人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
IPC分类号： F41A27/06 , F41G1/393
摘要： 16,988. Dawson, Sir A. T., and Buckham, G. T. Dec. 2. Sights and methods of sighting.-Relates to elevating and loading gears of the kind in which the gun cradle is trunnioned in an intermediate member which carries the sights, elevating-gearing being provided to elevate the gun and sight-carrying member together, and elevating loading-gearing being provided to bring the gun to loading position without disturbing the sights. According to the invention the intermediate member comprises a cradle which surrounds the gun cradle and in which the gun cradle is trunnioned. As shown in Figs. 1 and 2, the gun cradle A' is trunnioned at a in the intermediate member B which is co-axially trunnioned in the carriage side cheeks a . The sighting-telescopes are preferably arranged in openings B so as to intersect the trunnion axis. The gun and intermediate sight-carrying member B are elevated together by ordinary elevating-gearing B , b operated by a handwheel B below the left hand sight, or by means of an auxiliary hand-wheel B . The gun is brought to the loading position without disturbing the sights, by means of an elevating loading gear (not shown) on the right hand side of the gun, comprising a toothed rack on the member B engaging gearing in the gun cradle operated by a hand-wheel. The gun cradle trunnions are slidably mounted in longitudinal recesses in the intermediate member to enable the gun to be run inboard without disturbing the sights &c.

10. 发明专利

GB191516856A Improvements in or relating to Sighting Apparatus for Anti-aircraft Guns. 未知
公开(公告)号：GB191516856A
公开(公告)日：1919-03-27
申请号：GB191516856D
申请日：1915-11-30
申请人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
发明人： DAWSON ARTHUR TREVOR , BUCKHAM GEORGE THOMAS
IPC分类号： F41G1/393
摘要： 16,856. Dawson, Sir A. T., and Buckham, G. T. Nov. 30. Sights.-Relates to anti-aircraft sighting- apparatus of the kind in which means, adjusted in accordance with the ascertained height of the target, are provided for automatically correcting the angle of tangent elevation for varying angles of sight during the elevation and depression of the gun. The invention comprises an arrangement in which a cam is provided, adapted to be adjusted initially according to the height of the target, and so designed as to impart the required corrections. In the ar rangement shown in Fig. 1, a stationary profile cam B is employed, initially adjusted about its pivot B on the carriage A in accordance with the height of the target, by means of a hand-wheel (not shown) mounted on the righthand side of the gun and operating through gearing b , B . A graduated " height " dial is provided in conjunction with the operating hand-wheel, such dial being also graduated in terms of ranges or fuse timings and co-operating with a pointer passing across the face thereof as the gun is elevated. The cam B acts upon the sight-arm B through the medium of a roller b , which moves along the cam edge as the gun is elevated or depressed to bring the sight on to the target. A check roller b engaging a groove B'X in the cam may also be provided. In Fig. 1, cross-connected sights are shown with gearing for effecting vertical and lateral deflexion corrections. A modification is shown in Fig. 3, in which the profile cam B is pivoted on the cradle at B and moves therewith without any bodily rotation, under the constraint of a parallel-link motion b connected at its forward end to a bracket a on the carriage. Gearing may be substituted for the parallel motion b . Instead of the profile cam, a surface or laminated cam may be used, in which case settings for different heights are obtained by relative axial adjustment of the cam or the roller. A surface cam may be used to superimpose a further correction for speed of target. In this case, the cam is adjustable angularly for heights as in the form shown in Fig. 1 and axially or longitudinally for speed of target, the centre lamination corresponding to zero speed and the laminµ on either side corresponding to targets approaching or receding at various speeds.

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