US2015908A - Automatic firearm - Google Patents

Automatic firearm Download PDF

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Publication number
US2015908A
US2015908A US712406A US71240634A US2015908A US 2015908 A US2015908 A US 2015908A US 712406 A US712406 A US 712406A US 71240634 A US71240634 A US 71240634A US 2015908 A US2015908 A US 2015908A
Authority
US
United States
Prior art keywords
barrel
breech
casing
breech block
lugs
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
Application number
US712406A
Other languages
English (en)
Inventor
Rakula Theodor
Herlach Fritz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WAFFENFABRIK SOLOTHURN AG
Original Assignee
WAFFENFABRIK SOLOTHURN AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WAFFENFABRIK SOLOTHURN AG filed Critical WAFFENFABRIK SOLOTHURN AG
Application granted granted Critical
Publication of US2015908A publication Critical patent/US2015908A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
    • F41A3/16—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks
    • F41A3/26—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
    • 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
    • F41A3/14—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively
    • F41A3/16—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks
    • F41A3/26—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt
    • F41A3/28—Rigid bolt locks, i.e. having locking elements rigidly mounted on the bolt or bolt handle and on the barrel or breech-housing respectively the locking elements effecting a rotary movement about the barrel axis, e.g. rotating cylinder bolt locks semi-automatically or automatically operated, e.g. having a slidable bolt-carrier and a rotatable bolt having fixed locking elements on the non-rotating bolt and rotating locking elements mounted on the barrel or breech housing, e.g. rotatable rings
    • 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
    • F41A5/02—Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-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
    • F41A5/02—Mechanisms or systems operated by propellant charge energy for automatically opening the lock recoil-operated
    • F41A5/14—Barrel stops, i.e. devices for holding the recoiling barrel in a predetermined position, e.g. the recoil position
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K47/00—Dynamo-electric converters
    • H02K47/12—DC/DC converters
    • H02K47/16—Single-armature converters, e.g. metadyne

Definitions

  • An object of the invention is to provide means operative in dependence on the forward movement of the breech block relatively to the barrel suitable for this interlock- 10 ing, to automatically couple these two parts with each other in order to ensure the subsequent rotation to complete the interlocking.
  • Ano-ther object 'of the invention is to ensure that the barrel and the breech block shall remain together until the locking lugs engage with oneyanother and so that they cannot be separated prematurely from one another, for instance by recoil.
  • This arrangement is particularly advantageous for rearms having a sliding barrel which, after a shot is fired, is first held firmly in a rear retracted position and afterwards moves along with the breech block while the lugs are being interlocked.
  • the coupling device according to the invention prevents the barrel (which in the case of large calibre weapons is generally provided with a special recuperative device) from flying forward relative to the breech block, in which event the inter-engagement of the locking lugs which is positively eiected in dependence on the movements of the barrel and the breech would not be possible.
  • a further object is to provide a coupling device, which on the initial preparation and loading of the weapon by hand ensures that the breech and the barrel shall be held together for a period exceeding that required for the unlocking of the breech from the barrel, whereby the necessity of timing the action of the barrel retaining catch very exactly with the' completion of the unlocking operation is avoided.
  • FIG. 1 is a longitudinal section with the barrel 1'5 and the breech block in their forward end position
  • Y Fig. 2 is a longitudinal section with the barrel and the breech block in the rear position, the barrel be'ng held
  • Fig. 3 shows a detail of the locking sleeve on an enlarged scale.
  • the barrel b slidably mounted in the housing a is firmly connected by a bayonet catch with the female screw threaded member b1 Vand 25. ⁇ A by way of its thread b2 with the barrel casing b3.
  • a locking sleeve c In the casing b3 is rotatably mounted a locking sleeve c.
  • the rear end of the barrel casing b3 is provided at the top with a projection b4.
  • the bolt d1 is displaceably mounted in a recess in the housing cover a2 hinged about a pin a1.
  • the cover carries, on a projection which forms the abutment for the running 35 out-spring d, a roller e engaging in a cam groove c1 formedin the locking sleeve yc.
  • the closing spring f the spring guide member f1 supporting the breech block g.
  • the head ofA the breech block g can move i0 forward into a correspondingly shaped boring b5 in the barrel casing b3 and its locking lugs gs engage in the corresponding members c2 on the locking sleeve c.
  • the end of the barrel casing is L-shaped as 45 ⁇ - shown more clearly in Fig. 2 and in a recess formed in the foot of the closure there is accommodated the coupling device according to the in-v vention which forms at the same time the barrel retaining catch.
  • It consists of a lever h adapted 50 to pivot about a pin h2 under the influence of a spring h1, which lever is adapted to co-operate alternately, either, by means of the engagement of the front edge ha of its lower surface, in a notch a3 in the housing, to retain the barrel in its reark 55 female nut b1, the barrel casing b3, the pin h2 and the lever h, with the breech block y.
  • the breechblock g With the expansion of the closing spring f the breechblock g, if necessary after disengagement of a V,catch holding it in the rear end position, is then moved-forward, feeding a cartridge into the barrel now held in the rear end position until by the impact of the inclined surface g1 with the lever surface h4, the lever h is disengaged from the notch as in the housing and swings its head h5 behind the breech block projection g3. The barrel is thereby liberated and at the same time is coupled tothe breech block g in the longitudinal direction.
  • the barrel retaining and coupling lever h is of such dimensions that the surface g1 of the breech block which co-operates with the inclined surface h4, disengages it from the notch a3 of the gun housing shortly before the breech members strike against the abutment surfaces of the barrel casing b3.
  • the barrel b under the influence of the barrel running out spring d begins its movement into the forward end position before the breech block strikes it, and the impact eifect is further softened by the Vco-operationrof the inclined surfaces g1--h4, and the forward drive thereby exerted on the barrel.
  • the locking lugs g2 of the breech block may always find room for swinging in laterally between the counter lugs c2 on the barrel locking ⁇ sleeve c the leading ends of the lugs are bevelled.
  • lugs on Ythe barrel casing lugs on the breech blockarranged to interlock with the casing lugs to close the barrel breech by an axial and a rotary movement in succession of the casing and breech block relatively to each other, a coupling device separaterfrom said lugs for automatically'engaging the casing with the breech block on completion of such axial movement, and means for then effecting said rotarymovement.
  • the coupling device in addition Vto automatically engaging the casing with the breech block also comprises a catch for retaining the barrel in the position of recoil.
  • the couplingV device in addition Vto automatically engaging the'casing with the breech block also comprises a catch for retaining the barrel in the position of recoil.
  • a housing of a barrel, a barrel casing slidable with the barrel in the housing, a breech block slidably mounted in the housing, a spring urging the breech bolt towards the breech end of the barrel,
  • lugs on the barrel casing lugson the breech block arranged to interlock with the casing lugs to close the barrel breech by successive movements of the casing and Ybreech block relatively to each other, a lever pivoted in the barrel casing and cooperating' with a notch in the housing to lock the ba-rrel in recoiled position, and means on the breech block to swing said lever out of the notch and into'engagement with the breech block to couple the'- barrel casing therewith in position permitting their final relative movement to complete the'interlocking of thelugs.
US712406A 1933-12-12 1934-02-21 Automatic firearm Expired - Lifetime US2015908A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW93233D DE623065C (de) 1933-12-12 1933-12-12 Selbsttaetige Feuerwaffe mit Drehwarzenverschluss

Publications (1)

Publication Number Publication Date
US2015908A true US2015908A (en) 1935-10-01

Family

ID=32511938

Family Applications (1)

Application Number Title Priority Date Filing Date
US712406A Expired - Lifetime US2015908A (en) 1933-12-12 1934-02-21 Automatic firearm

Country Status (7)

Country Link
US (1) US2015908A (de)
BE (2) BE400909A (de)
CH (2) CH172113A (de)
DE (1) DE623065C (de)
FR (3) FR762167A (de)
GB (2) GB405759A (de)
NL (2) NL42101C (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739997C (de) * 1938-02-17 1943-10-09 Marc Birkigt Vorrichtung zur Loesung der Verschlussverriegelung fuer selbsttaetige Feuerwaffen, insbesondere fuer leichte Geschuetze fuer Luftfahrzeuge
DE102012104387B4 (de) 2012-05-22 2016-06-02 Marco Kurapkat Verschlussvorrichtung für eine Feuerwaffe

Also Published As

Publication number Publication date
FR762167A (fr) 1934-04-05
DE623065C (de) 1935-12-12
NL42101C (de) 1937-12-15
CH220947A (de) 1942-04-30
BE400909A (de) 1934-02-28
GB405759A (en) 1934-02-15
FR51832E (fr) 1943-05-04
BE443625A (de) 1942-01-31
FR767167A (fr) 1934-07-11
CH172113A (de) 1934-09-30
NL56684C (de) 1944-07-15
GB417292A (en) 1934-10-02

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