US1725272A - Automatic firearm - Google Patents
Automatic firearm Download PDFInfo
- Publication number
- US1725272A US1725272A US319539A US31953928A US1725272A US 1725272 A US1725272 A US 1725272A US 319539 A US319539 A US 319539A US 31953928 A US31953928 A US 31953928A US 1725272 A US1725272 A US 1725272A
- Authority
- US
- United States
- Prior art keywords
- joint
- toggle
- breech
- lever
- arm
- 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 - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A3/00—Breech mechanisms, e.g. locks
- F41A3/12—Bolt action, i.e. the main breech opening movement being parallel to the barrel axis
- F41A3/36—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
- F41A3/50—Toggle-joint locks, e.g. crank-operated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A5/00—Mechanisms or systems operated by propellant charge energy for automatically opening the lock
- F41A5/18—Mechanisms or systems operated by propellant charge energy for automatically opening the lock gas-operated
Definitions
- the object of the present invention is to obviate this draw-back for which purpose the lock for the toggle-joint is, on firing, released by a control device actuated directly by the force of the driving gases.
- the arm may then be rigidly mounted in a frame without preventing thereby the automatic release of the toggle-joint at the proper time.
- the undesired vibrations of the toggle-joint which are due to the suddenV stop on arriving in the stretched position and which may hinder the automatic engagement of the lock are absorbed or perfectly removed by blows exerted upon a portion of the toggle-joint by a beating device swinging under the influence of the inertia or under the load of a spring.
- the additional blow acting upon the togglejoint after the latter has arrived its stretched position absorbs the vibrations of the togglejoint, so that the locking of the breech before the next liring is assured by the locking device which simultaneously comes in engagement.
- a fire arm having a fixed barrel is shown by way of example.
- Fig. l is a broken away side elevation;
- Fig. 2 shows a plan and
- Fig. 3 a cross-section on the line A-B--C of Fig. 2.
- the two-part toggle-joint c, c is, in a well known manner, laterally shiftably journalled upon a pivot w1 in the casing a of the arm.
- the front part c, of the toggle-joint is, by the bolt b1, pivotally connected to the breech which is slidably arranged in the longitudinal axis of the arm.
- a spring not
- a locking pawl e Upon the casing of the arm and gripping over thisv a locking pawl e is journalled which is actuated by a spring d andv engages behind a projection c2 of the toggle-joint part c when the breech is closed. By this means the stretched toggle-joint is prevented from bending outwardly.
- a pawl lever f Upon a pivot o, of the toggle-joint part c a pawl lever f is swingable in a vertical plane the front end f1 of which extends below the projection c, of the locking pawl e.
- the lower camlike edge f, of the lever f lies in the path of the laterally bent end of a longitudinally movable rod g.
- This rod g is, in known manner, connected to a gas catching sleeve, not shown in the drawing, which is arranged in front of the barrel mouth.
- the rod g On firing, the rod g is shifted forwardly by the gas catching sleeve.
- the bent end g,L of the rod g' then slides along the cam-like face f, of the pawl lever f and lifts this lever f so far, that by the latter the locking pawl c is swung until the projection c, of the toggle-joint is released.
- the end g, of the rod g runs against the roller c4 and thereby the middle joint Z) of the toggle-joint is, in a well known manner, bent outwardly beyond the dead centre position, whereupon the further opening of the breech is effected by the recoil of the driving gases.
- the rod g ⁇ returns, under the action of a spring, to its position of rest and the locking pawl e drops into the locking position.
- a beating lever h is mounted swingably in the path of the toggle-joint lever c upon a pivot c5.
- a spring i resiliently holds the front end of the beating lever it in a certain distance from a handle c6 carried by the toggle-joint lever 0. If on closing of the breech the toggle-joint c, c, is, after passing beyond the stretched dead centre position, suddenly stopped by c6 underneath the pawl.
- the beating lever h swings on account of its inertia and exerts one or several powerful blows upon the handle c6 of the toggle-joint. These blows or impulses absorb the arising vibrations of the toggle-joint, prevent backswinging of this joint beyond the dead centre position and assure the proper and due engagement of the temporarily disengaged locking pawl e behind the nose c2 of the toggle-joint.
- the locking pawl e may be disengaged by pushing a finger of the hand gripping over the Vhandle
- means may be provided for automatically disengaging lthe pawl e by exerting a pull on -the handle 06.
- the handle of may, for instance7 be resiliently and swing ably connected tothe toggle-joint lever o and may' carry a lifting cam which when the handle 06 is pulled back disengages the pawl e.
- a togglefjoint breech In an automatic fire arm, a togglefjoint breech, a locking device for. locking said togglejoint in its stretched position, a control device actuated by the driving gases for automatically disengaging the said locking device on tiring and a swinging beating member bearing against the -said toggle-Joint in its stretched position and absorbing or removing, by inertiaor by the load of a spring, vibrations of said toggle-joint.
- a toggle-joint breech and a swinging beating member bear-l ing against Athe said toggle-pint in its stretched 'position and absorbing or removing,y by inertia or by the load of a spring, vibrations of said toggle-joint.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
- Toys (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1725272X | 1927-10-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
US1725272A true US1725272A (en) | 1929-08-20 |
Family
ID=7740749
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US319539A Expired - Lifetime US1725272A (en) | 1927-10-11 | 1928-11-15 | Automatic firearm |
Country Status (5)
Country | Link |
---|---|
US (1) | US1725272A (xx) |
BE (1) | BE359266A (xx) |
CH (1) | CH137494A (xx) |
FR (1) | FR671682A (xx) |
GB (1) | GB324290A (xx) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3728810A (en) * | 1969-10-14 | 1973-04-24 | Vishuy Int Inc | Firearms, especially sports or target pistol |
-
0
- BE BE359266D patent/BE359266A/xx unknown
-
1928
- 1928-11-15 US US319539A patent/US1725272A/en not_active Expired - Lifetime
-
1929
- 1929-03-14 CH CH137494D patent/CH137494A/de unknown
- 1929-03-19 FR FR671682D patent/FR671682A/fr not_active Expired
- 1929-03-26 GB GB9722/29A patent/GB324290A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3728810A (en) * | 1969-10-14 | 1973-04-24 | Vishuy Int Inc | Firearms, especially sports or target pistol |
Also Published As
Publication number | Publication date |
---|---|
BE359266A (xx) | |
GB324290A (en) | 1930-01-23 |
FR671682A (fr) | 1929-12-16 |
CH137494A (de) | 1930-01-15 |
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