US3348453A - Firearm with firing pin retarding means - Google Patents

Firearm with firing pin retarding means Download PDF

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Publication number
US3348453A
US3348453A US532384A US53238466A US3348453A US 3348453 A US3348453 A US 3348453A US 532384 A US532384 A US 532384A US 53238466 A US53238466 A US 53238466A US 3348453 A US3348453 A US 3348453A
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US
United States
Prior art keywords
breech
housing
friction
control member
catch
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
US532384A
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English (en)
Inventor
Muhlemann Ernst
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.)
OC Oerlikon Corp AG Pfaeffikon
Original Assignee
Oerlikon Buehrle Holding 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 Oerlikon Buehrle Holding AG filed Critical Oerlikon Buehrle Holding AG
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Publication of US3348453A publication Critical patent/US3348453A/en
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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
    • 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
    • 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
    • F41A3/38—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes
    • F41A3/40—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing having rocking locking elements, e.g. pivoting levers or vanes mounted on the 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
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/70—Anti-rebound arrangements, i.e. preventing rebound of the bolt out of the firing position

Definitions

  • An automatic rearm having a breech housing with a breech block locked to the housing in the igniting position, and a tiring pin control member for controlling the locking of the breech block, the control member being adapted to slide relative to the block out of a position of abutment on ignition.
  • A- friction brake means is provided between the control member and either the breech housing or breech block, the friction brake means comprising a spring-loaded movable friction element engageable in the abutment position within a catch or notch. The friction brake means controls the rebounding of the control member to such an extent that the friction element is permitted to automatically disengage without permitting the breech head to become unlocked.
  • the invention relates to an automatic firearm in which the breech housing has a breech head or block which is locked to the housing in the igniting position, and a control member for controlling the locking of the breech head, the control member being adapted to slide relatively to the head out of a position of abutment on ignition.
  • the invention is characterized in that a friction brake is provided between the control member and one of the two portions formed by the breech housing and the breech head, that thefriction brake has a spring loaded, movable friction element which engages in the abutment position in a catch provided with a friction surface, and that the friction' brake prevents the control member from rebounding from the breech head to such an extent that the friction element is automatically disengaged without the breech head being unlocked.
  • FIGURE 1 is a diagrammatic view of an axial longitu-dinal section, taken along the line I--I in FIGURE 3, through part of a rearm with the breech element in the locked position.
  • FIGURE 2 ⁇ is a similar view showing the breech element in the unlocked position.
  • FIGURE 3 is a section taken along the line III-III in FIGURE 1.
  • FIGURE 4 is a section taken along the line IV--IV in FIGURE 3.
  • FIGURE 5 is a section taken along the line V--V in FIGURE 1 showing a first embodiment of the friction brake.
  • FIGURE 6 is a section along the line VI-VI in FIGURE 5.
  • FIGURE 7 is a section along the line VII-VII in FIGURE 5.
  • FIGURE 8 is a section along the line VIII-VIII in KURE 1 showing a second embodiment of the friction ra e.
  • FIGURE 9 is a section along the line VIII- VIII in FIGURE 1 showing a third embodiment of the friction brake.
  • FIGURES 1 and 2 the breech head of a two-part breech element is shown at 1 and the control member at 2.
  • the control member 2 which is inserted in a recess 107 in the breech head 1 as shown in FIGURES 3 and 4 and which is movable in this recess, has a driving connection with two coupling members 26.
  • the -coupling members 26 are each movably housed in a chamber formed by a web 108 of the head 1 and a side wall of the housing 3 and engage in recesses in the control member 2 by means of projections 109.
  • Sleeves 5 carry cams 24 which give them a driving connection with the two coupling members 26, the cams 24 passing through slots in the side walls j of the breech housing 3 and engaging in recesses in the coupling members 26.
  • the sleeves 5, movably mounted in supports 4, are subjected to the pressure of closing springs 6 (FIGURES 5 and 6) provided in them and bearing on the rear ends of the supports 4 (not shown).
  • the supports 4 have extensions or attachments 25 pivotally mounted on bolts 23 which are provided on straps 22 fixed to the breech housing 3.
  • Two bolt locks 7 (FIG- URES 1 and 2) are pivotally mounted on the breech head 1 with engaging surfaces 8 provided on the housing 3 to support them.
  • A- bushing 9 (FIGURES 5, 6 and 7) directed transversely to the axis of the sleeves 5 is fixed in each side of the housing 3.
  • a friction element 10 is disposed within each bushing 9 and is subjected to the pressure of a spring 11 movably mounted in it.
  • the circular end face of the bushing 9 projecting from the housing 3 contains a slot-like aperture 91 extending parallel with the axis of the sleeve 5.
  • the extension 101 of the friction element 10 which has two surfaces 102, 103 also parallel to said axis, projects through this aperture and extends further out through an aperture 41 in the support 4 into a slot 51 forming a catch in the sleeve 5.
  • the extension 101 of the element 10 has two end faces inclined to the axis of the weapon, the front one 104 extending more steeply in relation to this axis than the rear one 105.
  • the front end 53 of the slot 51 in the sleeve 5 is in the same direcf tion as the steeper surface 104 of the friction element 10'.
  • the distance that the control member 2 has to cover backwards to force the connecting element 10 out of the catch 51 is shorter than the distance that the control member 2 has to cover in order to unlock the breech head 1 when a shot has been fired.
  • FIGURE 8 shows a second embodiment of the invention as used with a breech element according to FIGURES 1 and 2.
  • the main difference from the first example is that here the friction element is arranged in the control member 2 and acts on the breech head 1.
  • the cylindrical friction element 16 is movably mounted in a bore 17 perpendicular to the direction in which the control member 2 moves.
  • the front part of friction element 16 has a milled portion or cutout 161 parallel with its axis; this is engaged by a pin 19 xed in the control member 2 so as to prevent the friction element 16 from dropping out when the weapon is dismantled.
  • a recess or catch 20 is worked into the breech head 1; this forms part of a sphere with a radius slightly larger than that of the spherical end 163 of friction element 16.
  • the depth of the catch 20 is such that no sticking occurs between it and the friction element 16 when the control member 2 rebounds.
  • FIGURE 9 shows a third embodiment which is also used in one of the breech elements illustrated in FIG- URE 1.
  • the friction element comprises a pawl 27 placed in a recess 30 in control member 2.
  • a biased spring 34 bearing on the bottom of the bore 31 in the control member projects into a cutout 28 in pawl 27.
  • the breech head 1 has a catch 29 into which the friction element 27 springs when the control member 2 reaches the abutment position during its forward movement.
  • the recess or catch 29 has a friction surface 32 in the same direction as the end face 33 of pawl 27.
  • the third embodiment (FIGURE 9) operates similarly to the second example:
  • the catch may be provided in the control member and the friction element on the breech head or breech housing.
  • An automatic firearm comprising: a breech housing having a chamber; a breech head arranged in said housing and adapted to be locked to said housing in the igniting position;
  • control means for controlling the locking of the breech head in the housing, said control means being relatively movable with respect to said breech head from a position of abutment in which ignition takes place;
  • friction brake means coacting with said control means for frictionally braking the movement of the control means away from said position of abutment
  • said friction brake means comprising means defining a catch recess provided with a friction surface and a spring-loaded, slideable friction element stationary with respect to said housing at least as long as the breech head is locked in said igniting position, said friction element being slideably movable in a direction transverse to the direction of movement of the control means and adapted to be received into said catch recess when the control means is in the position of abutment.
  • control means is provided with a recess therein, said friction element being slideably mounted therein.
  • An automatic firearm comprising:
  • breech housing having a chamber
  • a breech head provided in said chamber and adapted to be locked to said housing in the igniting position
  • control member for controlling the locking of the breech head in the housing, said control member being relatively movable with respect to said breech head from a position of abutment in which ignition takes place;
  • friction brake means for braking the movement of the control member from said position of abutment, said friction brake means comprising a catch provided with a friction surface and a spring-loaded, movable friction element which engages said catch when the control member is in said abutment position;
  • said friction element comprising a cylindrical element radially slideably received in said control member and having a rounded end portion extending beyond the periphery of the control member and including a spring disposed in said control member for urging said friction element outwardly therefrom;
  • said catch comprising a semispherical depression in said breech head disposed in the path of movement described by said friction element during movement of the control member with respect to said breech head, the radius of said depression being larger than that of said rounded end portion so as to frictionally impede -but not prevent movement of said rounded end portion outwardly therefrom;
  • the friction brake prevents said control member from moving from said breech head to such an extent that said friction element is automatically disengaged from said catch without said breech head being unlocked.
  • An automatic firearm comprising:
  • breech housing having a chamber
  • a breech head provided in said chamber and adapted to be locked to said housing in the igniting position
  • control member for controlling the locking of the -breech head in the housing, said control member being relatively movable with respect to said breech head from a position of abutment in which ignition takes place;
  • friction brake means for braking the movement of the control member from said position of abutment, said friction brake means comprising a catch provided with a friction surface and a spring-loaded, movable 5 friction element which engages said catch when the control member is in said abutment position; slide means mounted for reciprocation along said breech housing and fixed to said control member for movement therewith at least during the initial portion of its movement out of abutment with said breech head, said catch being provided on said slide means; said friction element being recessed in said breech housing and including spring means for urging said friction element outwardly from said housing into contact with said slide means for engagement with said catch; whereby the friction brake means prevents said control member from movement from said breech head to such an extent that said friction element is automatically disengaged from said catch without said breech head being unlocked.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US532384A 1965-03-10 1966-03-07 Firearm with firing pin retarding means Expired - Lifetime US3348453A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH333765A CH432298A (de) 1965-03-10 1965-03-10 Selbsttätige Feuerwaffe

Publications (1)

Publication Number Publication Date
US3348453A true US3348453A (en) 1967-10-24

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US532384A Expired - Lifetime US3348453A (en) 1965-03-10 1966-03-07 Firearm with firing pin retarding means

Country Status (7)

Country Link
US (1) US3348453A (de)
AT (1) AT277816B (de)
BE (1) BE677329A (de)
CH (1) CH432298A (de)
DE (1) DE1578401A1 (de)
GB (1) GB1120571A (de)
NL (1) NL6602022A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473434A (en) * 1967-05-07 1969-10-21 Oerlikon Buehrle Ag Automatic firearm breechblock lock,the control member of which is latched by a gas operated setting member
US4815356A (en) * 1980-12-05 1989-03-28 Mauser-Werke Oberndorf Gmbh Breech lock mechanism for automatic firearms
WO2004068056A1 (de) * 2003-01-29 2004-08-12 Peter Spielberger Verschlusssystem für eine feuerwaffe
WO2011113983A1 (es) * 2010-03-16 2011-09-22 Extreme Polymer Research S.L. Pistola semiautomática

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH556524A (de) * 1972-07-28 1974-11-29 Oerlikon Buehrle Ag Fangvorrichtung an einer selbsttaetigen feuerwaffe.
US4227439A (en) * 1979-03-27 1980-10-14 Ares, Inc. Anti-bounce apparatus for reciprocating bolt assemblies of automatic cannon
DE3160427D1 (en) * 1980-03-26 1983-07-21 Oerlikon Buehrle Ag Firing safety device for automatic gun
FR2583155B1 (fr) * 1985-06-07 1989-06-09 France Etat Armement Dispositif de percussion controlee pour arme automatique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919630A (en) * 1957-06-14 1960-01-05 Willard J Hoyt Firearm with breech block retarding means
US3243513A (en) * 1963-04-15 1966-03-29 M T Installation And Repair Co Telephone pay station

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2919630A (en) * 1957-06-14 1960-01-05 Willard J Hoyt Firearm with breech block retarding means
US3243513A (en) * 1963-04-15 1966-03-29 M T Installation And Repair Co Telephone pay station

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3473434A (en) * 1967-05-07 1969-10-21 Oerlikon Buehrle Ag Automatic firearm breechblock lock,the control member of which is latched by a gas operated setting member
US4815356A (en) * 1980-12-05 1989-03-28 Mauser-Werke Oberndorf Gmbh Breech lock mechanism for automatic firearms
WO2004068056A1 (de) * 2003-01-29 2004-08-12 Peter Spielberger Verschlusssystem für eine feuerwaffe
WO2011113983A1 (es) * 2010-03-16 2011-09-22 Extreme Polymer Research S.L. Pistola semiautomática
ES2372204A1 (es) * 2010-03-16 2012-01-17 Extreme Polymer Research, S.L. Pistola semiautomática.

Also Published As

Publication number Publication date
NL6602022A (de) 1966-09-12
GB1120571A (en) 1968-07-17
AT277816B (de) 1970-01-12
BE677329A (de) 1966-07-18
DE1578401A1 (de) 1970-04-16
CH432298A (de) 1967-03-15

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