US3619928A - Firearm ejector system capable of ejecting shells of different lengths - Google Patents

Firearm ejector system capable of ejecting shells of different lengths Download PDF

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Publication number
US3619928A
US3619928A US872081A US3619928DA US3619928A US 3619928 A US3619928 A US 3619928A US 872081 A US872081 A US 872081A US 3619928D A US3619928D A US 3619928DA US 3619928 A US3619928 A US 3619928A
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United States
Prior art keywords
shell
barrel
extractor
ejection
receiver
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Expired - Lifetime
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US872081A
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English (en)
Inventor
James S Martin
Charles H Morse
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
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Remington Arms Co LLC
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Publication date
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    • 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
    • F41A15/00—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun
    • F41A15/12—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns
    • F41A15/16—Cartridge extractors, i.e. devices for pulling cartridges or cartridge cases at least partially out of the cartridge chamber; Cartridge ejectors, i.e. devices for throwing the extracted cartridges or cartridge cases free of the gun for bolt-action guns the ejector being mounted on the breech housing or frame

Definitions

  • An ejection system for use in firearms comprises a plural step feature wherein shells of various lengths may be ejected. This system is adaptable to most if not all firearms having a reciprocating bolt assembly along a line in prolongation of the barrel. thus making possible fairly universal application.
  • This invention relates to an improved ejection system for breech loading firearms, and more particularly to an ejection mechanism for use in shotguns wherein shotshells of different lengths may be extracted.
  • an elongated slidable leaf spring element is used as the ejector. It has a curved portion which attempts to bias the shell into ejecting from the receiver. It is obvious from its construction that the Morrow ejector is delicately constructed, and will show a great deal of wear upon the many spring segments and slidable bore portions of the device over an extended period of time.
  • the present mechanism is ruggedly constructed. It is simple to install and operate, and does a clean job.
  • the invention has a minimum of moving parts to reduce wear and the possibility of a malfunction or costly replacement.
  • the invention features a double abutment (step) although more than two steps are within the contemplation of design.
  • Each abutment is fixed in place to provide ruggedness to the system.
  • the first abutment functions to eject shorter shells, while the second abutment positioned further back of the first step, will eject longer shells.
  • FIG. 1 depicts a 2 /2" shotshell being ejected at the first step of the ejector mechanism of the firearms
  • FIG. 2 shows a 3" shotshell being ejected at the second step of the ejector mechanism of the firearm.
  • the invention is for an improved ejection system for firearms having a first step means disposed within said receiver substantially diametrically opposite said ejection port and said extractor.
  • the rim portion of an extracted shell is engageable with the step, and as the shell is further extracted, the shell will tend to pivot about the extractor causing its ejection from the receiver through the ejection port.
  • the nose of the shell will not clear the breech end of the barrel, so that ejection will not take place.
  • the shell will ride over the first step as the shell is further withdrawn from the barrel and will engage a second step means also disposed within the receiver, substantially diametrically opposite the rear end of said ejection port and said extractor. Still further withdrawal of the extractor away from the barrel will cause the longer shell to pivot about the extractor and eject the shell from the receiver through said ejection port.
  • FIG. 1 a 2%" shotshell is shown as it is being ejected from the receiver of the firearm.
  • the receiver 2 has an ejection port 11 through which the shell 9 can pass.
  • the receiver is connected to the barrel of the gun 3, generally about the circumferential edge 20.
  • the barrel has a chamber 18 for the receipt of shotshells.
  • a reciprocating bolt assembly 1 is shown with a hook-like extractor claw 4 which contacts the rim of the shell at point 14.
  • the ejector mechanism consists of an upper track 13 and a lower track 13 having a two-step (abutment) arrangement. The first step is depicted as twin groove-like abutments 5 and 5.
  • Abutment 5 is disposed on the upper track and abutment 5 on the lower track.
  • a leaf spring 7 is positioned within the ejector body between the upper and lower tracks 13 and 13, respectively.
  • the first step is suflicient to eject them. This is accomplished by withdrawing the bolt assembly away from the breech end of the barrel.
  • the extractor claw will urge the shell from the barrel until the rim 12 of the shell contacts the first step, grooves 5 and 5'.
  • the leaf spring 7 biases the shell towards the extractor claw 4, so that it may stay in firm engagement with the shell rim 14 at all times.
  • the spring bias allows a longer shell to ride over the first step, and also allows a shorter shell to be firmly held during extraction so that it will not drop under the extractor and cause a malfunction. If the shell is a proper length (not greater than 2 /2), then the nose portion of the shell 19 will properly clear the edge of the barrel at point 17. Ejection will result when the bolt assembly is further withdrawn. The action at this point is standard with the shell tending to pivot about point 14 of the extractor as the extractor is pulled rearward.
  • FIG. 2 a 3" shotshell is depicted as it is being ejected from the receiver of the gun.
  • the action involved with its ejection is somewhat similar to that shown in FIG. 1,. with a few exceptions.
  • the further withdrawal of the shell from the barrel will eventually bring the end face surface of the shell 15 in contact with a second abutment 8 positioned rearward of said first step, abutments and 5.
  • the second abutment has substantially a flat face, and engages the end face surface of the shell at point 16.
  • the present system is simple to construct, simple in operation, and is rugged. If shells of different lengths (other than 2 /2" or 3") are to be used, the ejector can be positioned differently with respect to the barrel edge so that the nose of the shells Will clear at different lengths. It is also possible to change the spacing between abutments to accommodate different shell lengths.
  • a third modification may employ several groovelike abutments 5 spaced in proper relationship along the ejector so that more than two different sizes of shell may be successfully ejected.
  • the ejector prefferably constructed to have only one track, or more than two tracks, if so desired.
  • an improved ejection system comprising:
  • first step means disposed within said receiver sub- 3 stantially diametrically opposite said ejection port and said extractor, and engageable with the rim portion of a shell as it is extracted from said barrel, whereby further extraction of said shell will tend to cause said shell to pivot about the extractor and eject through said ejection port provided the nose of said shell has cleared the breech end of the barrel;
  • second step means disposed within said receiver substantially diametrically opposite said ejection port and said extractor, positioned rearward of said first means and engageable with the rim portion of a longer shell that was not ejected by the first step means and whose rim has ridden over said first step as the shell was further withdrawn from said barrel, whereby the still further withdrawal of the extractor away from the barrel will tend to cause the longer shell to pivot about the extractor and eject the shell from the receiver through the ejection port;
  • a resilient member disposed within the receiver for biasing the rim portion of the shell toward the extractor so that the shell tends to stay in engagement with and pivot about said extractor, and wherein the biasing effect also serves the purpose of allowing a shell unable to eject at the first step means to bypass the first step means so as to contact the second step means as said shell is further withdrawn from said barrel.
  • the first step means comprises at least one groove-like abutment for engaging the outer circumference of the rim portion of a shell.
  • the ejection system of claim 1, wherein the second step means comprises a substantially flat faced abutment for engaging the end face surface of the rim portion of a shell.
  • the first step means comprises twin groove-like abutments for engaging the outer circumference of the rim portion of a shell, each abutment disposed upon an upper and lower track of the ejector mechanism, respectively, and further wherein said resilient member is coaxially disposed along the length of the receiver between the upper and lower ejector tracks.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
US872081A 1969-10-29 1969-10-29 Firearm ejector system capable of ejecting shells of different lengths Expired - Lifetime US3619928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US87208169A 1969-10-29 1969-10-29

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US3619928A true US3619928A (en) 1971-11-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
US872081A Expired - Lifetime US3619928A (en) 1969-10-29 1969-10-29 Firearm ejector system capable of ejecting shells of different lengths

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US (1) US3619928A (fr)
JP (1) JPS4948237B1 (fr)
BE (1) BE758217A (fr)
FR (1) FR2066693A5 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5974942A (en) * 1998-08-25 1999-11-02 Snc Industrial Technologies Inc./Les Technologies Industrielles Snc Inc. Ejection-assist mechanism for automatic firearms
US8819976B1 (en) * 2010-11-19 2014-09-02 Kel-Tec Cnc Industries, Inc. Tubular magazine firearm with sheet metal receiver
US11573059B2 (en) * 2017-06-02 2023-02-07 Gibbens Engineering Group, LLC Lower receiver
US12480727B1 (en) * 2024-07-09 2025-11-25 Weapons Armorer, Inc. Ejector kits, assemblies, and methods of use

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5974942A (en) * 1998-08-25 1999-11-02 Snc Industrial Technologies Inc./Les Technologies Industrielles Snc Inc. Ejection-assist mechanism for automatic firearms
US8819976B1 (en) * 2010-11-19 2014-09-02 Kel-Tec Cnc Industries, Inc. Tubular magazine firearm with sheet metal receiver
US9534861B1 (en) 2010-11-19 2017-01-03 Kel-Tec Cnc Industries, Inc. Tubular magazine firearm with sheet metal receiver
US11573059B2 (en) * 2017-06-02 2023-02-07 Gibbens Engineering Group, LLC Lower receiver
US12078440B2 (en) 2017-06-02 2024-09-03 Gibbens Engineering Group, LLC Lower receiver
US12480727B1 (en) * 2024-07-09 2025-11-25 Weapons Armorer, Inc. Ejector kits, assemblies, and methods of use

Also Published As

Publication number Publication date
FR2066693A5 (fr) 1971-08-06
JPS4948237B1 (fr) 1974-12-20
BE758217A (fr) 1971-04-29

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