US3373519A - Carrier latch retainer for autoloading firearms - Google Patents

Carrier latch retainer for autoloading firearms Download PDF

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Publication number
US3373519A
US3373519A US627785A US62778567A US3373519A US 3373519 A US3373519 A US 3373519A US 627785 A US627785 A US 627785A US 62778567 A US62778567 A US 62778567A US 3373519 A US3373519 A US 3373519A
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US
United States
Prior art keywords
carrier
latch
retainer
shell
firearm
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
US627785A
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English (en)
Inventor
Walter L Dahl
James S Martin
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.)
Remington Arms Co LLC
Original Assignee
Remington Arms Co LLC
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 Remington Arms Co LLC filed Critical Remington Arms Co LLC
Priority to US627785A priority Critical patent/US3373519A/en
Priority to BE709166D priority patent/BE709166A/xx
Priority to FR1550897D priority patent/FR1550897A/fr
Application granted granted Critical
Publication of US3373519A publication Critical patent/US3373519A/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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/01—Feeding of unbelted ammunition
    • F41A9/06—Feeding of unbelted ammunition using cyclically moving conveyors, i.e. conveyors having ammunition pusher or carrier elements which are emptied or disengaged from the ammunition during the return stroke
    • F41A9/09—Movable ammunition carriers or loading trays, e.g. for feeding from magazines
    • F41A9/10—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging
    • F41A9/13—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane
    • F41A9/16—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis
    • F41A9/17—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis mounted within a smallarm
    • F41A9/18—Movable ammunition carriers or loading trays, e.g. for feeding from magazines pivoting or swinging in a vertical plane which is parallel to the barrel axis mounted within a smallarm feeding from a tubular magazine under the barrel

Definitions

  • a fire control mechanism for autoloading firearms including a shell carrier arranged to transfer shells from the magazine to the chamber of the firearm.
  • a carrier latch is arranged to hold the shell carrier in a position to receive shells from the magazine.
  • Shells fed from the magazine move the carrier latch out of engagement with the carrier to allow the shell to be fed to the chamber.
  • a retainer is formed on the carrier to prevent the carrier latch from relatching the carrier prior to the shell being fed to the chamber.
  • This invention relates to a fire control mechanism for the type of autoloa-ding firearm having a tubular magazine positioned beneath and parallel to the barrel.
  • the invention relates to a retainer for a carrier latch in that type of fire control which includes a pivoted shell carrier to feed shells fed from the magazine to the chamber. This type of fire control is usually found in autoloading shotguns.
  • a firearm of the above type is shown in United States Patent No. 3,200,710 issued Aug. 17, 1965, to R. P. Kelly et a1.
  • One fire control for use with such a gun is shown in United States Patent No. 2,887,808 issued May 26, 1959 tov S. K. Janson vet al.
  • This fire control has a hinged shell carrier and fails to make any provision to retain the carrier latch out of engagement with the shell carrier during cycling of the firearm. Failure to provide the carrier latch retainer of the subject invention can result in malfunctions due to failure to feed shells to the chamber.
  • the subject invention contemplates the provision of a spring detent or retainer formed from a portion of the shell carrier of a fire control for autoloading shotguns.
  • the retainer is positioned so that a feeding shotshell tripping the carrier latch forces the latch to deflect the retainer and snap in behind it.
  • the latch once tripped and held by the retainer cannot rebound or relatch the carrier until the carrier rises and falls during the gun cycle.
  • the carrier rises it releases the engagement of the latch and retainer allowing the latch to return to its normal position latching the carrier after the carrier falls to its normal position.
  • the timing of an autoloading shotgun is extremely critical. Firing from unconventional attitudes affects the timing and leads to the malfunction which appears to be a failure of tripping of the carrier latch. The subject invention insures that this apparent malfunction cannot occur.
  • the inclusion of the carrier latch retainer infallibly times the gun regardless of firing attitude.
  • the primary object of this invention is to provide means to positively disengage the latch from the carrier during cycling of the gun regardless of the firing attitude. Normally, these guns are fired in a conventional attitude but for law enforcement and military use the ability to be fired from an unconventional attitude becomes extremely important.
  • An additional advantage of the carrier latch retainer is to provide space in a standard receiver for 2% inch shotshells so that 3 inch shotshells may be used.
  • the retainer prevents rebounding of the latch and thus provides sufficient space to allow feeding of the longer shells.
  • the carrier latch retainer further provides a means to produce a full automatic shotgun free from the malfunction problems set forth above.
  • FIGURE 1 is a perspective view of a fire control mechanism including the carrier latch retainer with some of the parts broken away for clarity;
  • FIGURE 2 is a fragmentary sectional side elevation of the receiver section of a firearm incorporating this invention showing the firearm ready to fire with some of the parts broken away for clarity;
  • FIGURE 3 is a fragmentary section-a1 side elevation of the receiver section of a firearm incorporating this invention showing the feeding shell acting upon the carrier latch so that the carrier latch is engaged by the carrier latch retainer with some of the parts broken away for clarity;
  • F-IGURE 4 is a fragmentary sectional side elevation of the receiver section of a firearm incorporating this invention showing the carrier delivering the feeding shell tcla the chamber with some of the parts broken away for c arity.
  • FIG. 1 illustrates a fire control 1 including a trigger plate 2 upon which the remaining components of fire control 1 are mounted. Formed integrally at the 2 is a trigger guard 3. A trigger 4 is positioned to extend in trigger guard 3 and upward through plate 2. Trigger 4 is mounted on pivots 0n trigger pin 5.
  • Attached to trigger 4 is a connector 6 which is arranged to contact the sear 7 and disengage sear 7 from the hammer 8 for firing.
  • a disconnector 9 is provided to disengage connector 6 from sear 7 except when the firearm is in the closed position ready to fire as shown in FIGURE 2.
  • the bolt 10 is in the battery or rcady-to-fire position with the firing pin 11 cocked and positioned to be struck by hammer 8.
  • the carrier 12 is pivotally mounted on plate 2 about hollow pin 13.
  • Carrier 12 is retained on pin 13 by clip 14 and is locked in its normal pos tion as shown in FIG- URE 2 by carrier latch 15.
  • Latch 15 is pivotally mounted on pin 16 which is in turn secured to plate 2.
  • Latch 15 is biased towardmagazine tube 17 by means of a spring and plunger not shown.
  • a portion of carrier 12 is bent upward to form a projection 18 so that the end of projection 18 extends into an opening 19 in latch 15 whereby latch 15 locks carrier 12 in its normal position.
  • A-carrier release 20 is pivotally mounted on a pin 21 which is secured to carrier 12. Release 20 projects below carrier 12 for manual depression and has an arm 22 projectingupward to engage latch 15. Depressing release 20 disengages carrier projection 18 from latch 15 so that carrier 12 can be raised to allow shells to be fed to magazine tube 17.
  • the carrier latch retainer 23 was formed in the right leg 24 of carrier 12.
  • retainer 23 was formed by making a single vertical cut in leg.24 and a triangle of metal was bent in to be positioned behind latch 15.
  • leg 24 would spring outward allowing latch 15 to move behind retainer 23.
  • Latch 15 would, therefore, be latched behind retainer 23, until carrier 12 was lifted to clear the engagement of latch 15 and retainer 23.
  • retainer 23 is formed in the left leg 25 of carrier 12. This is done by making a long cut substantially parallel to the top of leg 25 and bending the end of the spring leaf thus formed in behind latch 15. Upon rearward movement of latch 15. retainer 23 will spring outward by the camming action of latch 15. As soon as latch 15 has cleared retainer 23 the end will spring in to engage latch 15 and maintain out of engagement with carrier 12. It can, therefore, be seen that retainer 23 renders the firearm insensitive to variations in feeding shell velocities.
  • FIGURES 3 and 4 wherein, the operation of retainer 23 is shown.
  • a feeding shell 26 is shown on carrier 12 after being delivered from magazine tube 17.
  • shell 26 When shell 26 is transferred from magazine 17 to carrier 1.2 its momentum will cause it to move latch 15 rearwardly until it has cleared retainer 23 and is maintained in the rearward position by retainer 23. This relationship will be maintained until carrier 12 rises to deliver shell 26 to the chamber 27 formed in the barrel 28 and falls once again to its normal position. This motion takes place during each cycle of the firearm.
  • carrier 12 is shown in position to feed shell 26 to chamber 27.
  • Carrier 12 holds shell 26 in a position where it will be moved into chamber 27 by bolt returning to the battery or ready-to-fire position.
  • retainer 23 rides upward on latch until it reaches the cutout 29 at which time latch 15 is no longer engaged by retainer 23 and is forced forward to its normal position by the biasing spring and plunger not shown.
  • Dog 30 pivotally mounted on plate 2 is forced forward by a spring and plunger not shown after bolt 10 returns to battery position. The movement of bolt 10 rearward during cycling of the firearm cams dog 30 rearward out of engagement with carrier 12.
  • retainer 23 provides positive retention of latch 15 during shell feeding so that feeding malfunctionsby failure to release carrier 12 are eliminated.
  • a fire control mechanism for autoloading firearms comprising a trigger plate, a shell carrier pivotally mount ed on said trigger plate and positioned to receive shells fed from a magazine, a spring finger retainer formed in one side of said carrier, a carrier latch pivotally mounted on said trigger plate and passing through an opening in said carrier adjacent said finger, said finger positioned with its free end behind said latch.
  • said carrier has an arm formed therein positioned to engage said latch so that said latch prevents movement of said carrier, said latch is moved rearward by the motion of a feeding shell to free said carrier, said rearward movement of said latch positions said latch behind said retainer, whereby, said retainer maintains said latch free of said carrier until said carrier rises during the firearm cycle releasing said latch from said retainer.
  • a latch release is pivotally mounted on said carrier, said release having an upright arm engaging said latch, whereby, manual depression of said release disengages said latch and said carrier.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
US627785A 1967-04-03 1967-04-03 Carrier latch retainer for autoloading firearms Expired - Lifetime US3373519A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US627785A US3373519A (en) 1967-04-03 1967-04-03 Carrier latch retainer for autoloading firearms
BE709166D BE709166A (it) 1967-04-03 1968-01-10
FR1550897D FR1550897A (it) 1967-04-03 1968-01-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US627785A US3373519A (en) 1967-04-03 1967-04-03 Carrier latch retainer for autoloading firearms

Publications (1)

Publication Number Publication Date
US3373519A true US3373519A (en) 1968-03-19

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ID=24516124

Family Applications (1)

Application Number Title Priority Date Filing Date
US627785A Expired - Lifetime US3373519A (en) 1967-04-03 1967-04-03 Carrier latch retainer for autoloading firearms

Country Status (3)

Country Link
US (1) US3373519A (it)
BE (1) BE709166A (it)
FR (1) FR1550897A (it)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1345000A1 (en) * 2002-03-15 2003-09-17 Oto Melara S.p.A. Mechanism for loading and feeding a semi-automatic rifle and its operating method
WO2009113969A1 (en) * 2008-03-10 2009-09-17 Bahtiyar Tasyagan Cartridge loading mechanism for semi -automatic shotguns, which enables loading cartridges with single hand without giving up the shooting position
US9803940B2 (en) 2014-05-02 2017-10-31 Sturm, Ruger & Company, Inc. Shell loading system for firearm

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1345000A1 (en) * 2002-03-15 2003-09-17 Oto Melara S.p.A. Mechanism for loading and feeding a semi-automatic rifle and its operating method
WO2009113969A1 (en) * 2008-03-10 2009-09-17 Bahtiyar Tasyagan Cartridge loading mechanism for semi -automatic shotguns, which enables loading cartridges with single hand without giving up the shooting position
US9803940B2 (en) 2014-05-02 2017-10-31 Sturm, Ruger & Company, Inc. Shell loading system for firearm

Also Published As

Publication number Publication date
BE709166A (it) 1968-07-10
FR1550897A (it) 1968-12-20

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