US2509640A - Machine gunlock - Google Patents
Machine gunlock Download PDFInfo
- Publication number
- US2509640A US2509640A US707394A US70739446A US2509640A US 2509640 A US2509640 A US 2509640A US 707394 A US707394 A US 707394A US 70739446 A US70739446 A US 70739446A US 2509640 A US2509640 A US 2509640A
- Authority
- US
- United States
- Prior art keywords
- pin
- firing
- breech
- side lever
- cartridge
- 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
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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
- 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
- F41A15/14—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 or within the bolt; Extractors per se
-
- 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
- F41A9/24—Feeding of unbelted ammunition using a movable magazine or clip as feeding element
- F41A9/26—Feeding of unbelted ammunition using a movable magazine or clip as feeding element using a revolving drum magazine
- F41A9/27—Feeding of unbelted ammunition using a movable magazine or clip as feeding element using a revolving drum magazine in revolver-type guns
-
- 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
- F41A9/29—Feeding of belted ammunition
- F41A9/32—Reciprocating-slide-type belt transporters
- F41A9/33—Reciprocating-slide-type belt transporters with cartridge stripping means
Definitions
- a machine gun of the Vickers type irl winch the firing om is operated during the locking action of 'a .side lever actuating a reciprocating A.breech block, is' characterised in that .the rir'ie Din displaceable to the n'rng' position in 'and relatively to the breech block, andthe side lever drives the nring .pin forwardly relatively to the breech blocl; to Yre the gun upon closing 'the breech.
- a Side lever -pvoted to the breech block accommodating the firing pin and extractor, the -rng pin and the Seid lever having 12o-operating opposed 'parts adapted V:to be abutted together when the lever is moved into the locked nositionlthe arrangement being that the forward movement and the ring of the cartridges is controlled by thecontact between the side lever and the firing pinkwhen bringing the firing mechanism tothelocked position.
- Figure 1 is a broken sectional side elevation of a Vickers machine gun breech mechanism in the firing position and embodying the present invention
- Figure 2 is a sectional side elevation showing the breech mechanism with the breech block a full recoil and with a round positioned ready for ramming into the breech,
- Figure 4 4 is a ⁇ sectional elevation showing the cartridge case of the 'last round being ejected'.
- the'breech 13100K is in the form of a housing I .for the ring pin 5 and is .formed .at its rear fend with a .pendant abutment 2 adapted to ⁇ trip over a spring loaded scar-3 which normally prevents forward transla- :tivemovem'ent ofthe housing I and thecartridge C2 which is hield by its rim ⁇ in Yknown manner between the flanges IIa, of la, 'guide I1 upstarrd.-
- posi- Vtive displacement, or forward pushing of 'the firing' pin-relatively to the housing I is obtained by the provision on the rear part of the ring pin of an abutment surface II located at a suitable angle, e. g. 45 to the axis of the ring pin, and a corresponding surface I2 formed on the side lever approximately midway between its ends,
- the front end of the side lever being part of a known toggle action device and being pivoted to a pin I3 passed transversely through the front part of the housing I, the firing pin being slotted longitudinallyl as ⁇ at I4 to accommodate such transverse pin and to afford the requisite clearance for the reciprocation of the firing pin within the housing.
- the firing pin is forced forwardly to re the cartridge by a face I2 on the side lever striking the face II on the firing pin at the instant the toggle action on the side lever closes and the mechanism is locked.
- the cartridges are transported from the feed lbox I8, which is disposed immediately above the breech, to the barrel by the guide I'I which relceives the rim of the appropriate round as aforesaid, and the round is urged along the anges I'Ia simultaneously by the downward movement of the carrier I5 in channels I6 in the guide I'I, thus ultimately bringing the appropriate cartridge into engagement with the aforesaid spring Vloaded detent 3 (see Figure 2) in order that the cartridge may be located correctly at the front 'end of the housing and supported in co-axial -alingment with the barrel.
- the reciprocating :imovement of the carrier vertically relatively to the axis of travel of the housing is controlled by I'an island type cam, i. e.
- g Assembled to the said carrier I5 is a spring i loaded ejector 23 pivoted on a pin 24 to a slide ⁇ 25 slidably supported by the carrier for slight vertical reciprocation relatively to the carrier I5, this ejector operating to eject the case of the last cartridge from the lower end of the flanges -YI'Ia, the flanges in effect forming a T-section slot in the guide I'I to receive the cartridge case rims.
- This ejector is defiected as shown in Figure tI L bythe cartridge C1 in the feed box, and is .thereby caused to be inoperative until there is Ino cartridge in the belt, when as shown in Fig- ;ure 3, the ejector is urged slightly forward by v ⁇ its spring 26 and with the slide 25 is carried down with the carrier to its lowermost position as shown in Figure 4 to eject the cartridge case C2 of the last fired cartridge over and beyond the aforesaid spring loaded detent 3.
- the front edge of the slide is formed with a recess 21 dimensioned to receive readily the ejector 23, the ejector comprising a finger pivoted to the slide and spring loaded forwardly as aforesaid by the coiled compression spring '26, the arrangement being such that the lower part of this ejector is prevented from moving forwardly under the influence of such spring by reason of its engagement with the base of the appropriate cartridge C1 in the feed box, but following the removal of the last round in the feed box the ejector 23 is free to move forwardly on its pivot so that its lower end bears against the uppermost point of the base of the cartridge case and pushes such case downwardly beyond the spring loaded detent.
- the ejector 23 is prevented from being pressed forwardly by its spring 26 when the cartridge C is positioned (as in Figure 2) in the loading position, by the lower edge of this ejector abutting against a step 28 on the front end of the breech block, thus causing the extractor to be pushed upwards relatively to the carrier so that the lower part of the extractor lies behind the corner piece I 5a of the carrier.
- the extractor is formed with a recess or step 23a adapted to slip over the corner piece IEa when the extractor comes opposite vthe empty feed box I8 (see Figure 3) so that it cannot now be moved upwardly relatively to the slide 25 and forms a positive abutment to engage and eject the last cartridge case as in Figure 4.
- a side lever In a machine vgun of the Vickers type a side lever, a reciprocating breech block actuated by said side lever, a firing pin displaceable in and relatively to the breech block, and co-operating opposed abutment surfaces on the side lever and ring pin which abut together when the side lever is moved into a position to lock the breech, said ring pin being urged forwardly by reason of said engagement of the abutting surfaces at the completion of the locking movement ofthe side lever to fire the gun.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Portable Nailing Machines And Staplers (AREA)
Description
May 30, w50 P. R. HlGsoN 2,509,640
MACHINE GUNLOCK Filed Nov. 2, 1946 3 Sheets-Sheet 1 INVENTO P. R. HIGSON MACHINE GUNLOCK May 30, 1950 3 Sheets-Sheet 2 Filed Nov. 2. 1946 m T N V w P. R. HIGSON MACHINE GUNLOCK May 30, 1950 3 Sheets-Sheet 5 Filed Nov. 2. 1946 ATTOQNEYS Patented May 30, 1950 UN'l'lfED PATENT DFE-Fi l? lasoam MACHINE GUNLoc-K Percy Reuben Hfigsn, Wesfmllsfl'; @hdmi Eng' Yland, assigner' to Vickers-Armstrongs, Limitej, London, England, 'a company of Greatritain Application November 2, 1946, serial NoP 7oz-,394 ,In Great-Britain Gictobel 293 1195.15
section 1,rub1icLaw ceaAngust 1946 Patent expires October 29, 1965 2 .Gianna This invention relates to -machlne'guns of the barrel recoiling type, and generally :know-n as the Vickers type in which,` as shown in United. States Patent v`No. 2,013,312, the firing vis operated during the locking action of V'afsid'e*lever to which is connected the recoil of the spring, this side lever actuating a reciprocating breech bloei; with which is associated a ring pin operated during the' locking action of vthe `side lever, this side lever, in 'effect acting as aconnecting rod across the reciprocatingbeechblock and a crans Yintwirig an axis of oscillation substanuauy intersecting an axis containing the aforesaid side lever and breech block whenin the firing position, so that when in the firing DS- tion the side lever and crank occupy substantially a dead-"centre relationship ibut move to :angular relationship when the breech lolock withdrawn. 'The object 'of the invention is to simplify Con'- siderabi'y the locking and firing .mechanism so as to dispense with r the cooking Qf the rne pin.
According to the present invention a machine gun of the Vickers type irl winch the firing om is operated during the locking action of 'a .side lever actuating a reciprocating A.breech block, is' characterised in that .the rir'ie Din displaceable to the n'rng' position in 'and relatively to the breech block, andthe side lever drives the nring .pin forwardly relatively to the breech blocl; to Yre the gun upon closing 'the breech.
In carrying one form of the rinvention v:into practice there is Vcombinefwith `rrieans, for translating the cartridges successively from the feed box to the barrel, a Side lever -pvoted to the breech block accommodating the firing pin and extractor, the -rng pin and the Seid lever having 12o-operating opposed 'parts adapted V:to be abutted together when the lever is moved into the locked nositionlthe arrangement being that the forward movement and the ring of the cartridges is controlled by thecontact between the side lever and the firing pinkwhen bringing the firing mechanism tothelocked position.
In order that the invention may be clearly understood and .readily carried intoeffect, drawings are appended hereto illustrating an embodiment thereof, and wherein,
Figure 1 is a broken sectional side elevation of a Vickers machine gun breech mechanism in the firing position and embodying the present invention,
Figure 2 is a sectional side elevation showing the breech mechanism with the breech block a full recoil and with a round positioned ready for ramming into the breech,
Figure 4 4is a `sectional elevation showing the cartridge case of the 'last round being ejected'. Y Referring to the draw-ings, the'breech 13100K is in the form of a housing I .for the ring pin 5 and is .formed .at its rear fend with a .pendant abutment 2 adapted to `trip over a spring loaded scar-3 which normally prevents forward transla- :tivemovem'ent ofthe housing I and thecartridge C2 which is hield by its rim `in Yknown manner between the flanges IIa, of la, 'guide I1 upstarrd.-
ing from vthe front end .of :the housing '1, the rou-nd being lheld in alignment with ythe barrel B when the housing is held back Yby the sear :3 (as shown in Figure 2) byathe downward pressure vof the :lower front corner part 15a of a carrier I5 reciprocating in the guide IfTI, the cartridge being abutted against a stop in the form of a spring loaded .detent '5. accommodated :in the front end of the housing immediately subjacent the tapered bore 5c :receiving the operative ,end nf the fir-ing pin 5*, the ring pin ebody reciprocating' in the A'cylindr-ioal bore v6 of `the housing. this connection the firing -pln has only a ivory small displacerrler1t relatively tothe -housing e. g.
not more than `oneeigl'i'th .of an inch, the forward movement of the firing pin relatively to the housing being Aagainst the influenc Of la ycoiled compression spring "I yiriterp''osed between astep 9 protruding inwardly Sat lthe front 'er-id of tl'e bore of the housing-and a step T8 formed the front-end ofthe bod-y part of the firing-pin. j'Il he reason for this very small relative ldispla'cement Yof lthe ringp'in .and-the housingis b'ecau'sefthat lby ni'eans of -the present invention, thecu'stomary coolen-'1g of the Afiring ein vis dispensed with,` the forward movement and the lirirlug ofthe cartridge `bel-ng oontroll'ed `byfjthe contact Vbetween 'a side 'lever y-I0 andtheriring'pinT-at the f time vthe mecha'- nisrn closes to the locked posi-tion.- That to say the round reared-:ty actua-llpcsiuve dispmce ment of the .cringev sin forward-1v against tntinuence of the spring i7 as the lever L0 corripletesgits--forward or loading action. posi- Vtive displacement, or forward pushing of 'the firing' pin-relatively to the housing I is obtained by the provision on the rear part of the ring pin of an abutment surface II located at a suitable angle, e. g. 45 to the axis of the ring pin, and a corresponding surface I2 formed on the side lever approximately midway between its ends,
the front end of the side lever being part of a known toggle action device and being pivoted to a pin I3 passed transversely through the front part of the housing I, the firing pin being slotted longitudinallyl as` at I4 to accommodate such transverse pin and to afford the requisite clearance for the reciprocation of the firing pin within the housing. The firing pin is forced forwardly to re the cartridge by a face I2 on the side lever striking the face II on the firing pin at the instant the toggle action on the side lever closes and the mechanism is locked.
To fire, the sear is depressed, and until it is released, the housing I carrying the cartridge C1 with it moves forward until the cartridge case is fully home in the breech and the ring pm makes effective driving contact with the base of the cartridge contemporaneously with the movement of the side lever I into axial or paral- Y lel alignment with the barrel B as shown in Figure 1. By this means cooking mechanism for the firing pin is obviated.
The cartridges are transported from the feed lbox I8, which is disposed immediately above the breech, to the barrel by the guide I'I which relceives the rim of the appropriate round as aforesaid, and the round is urged along the anges I'Ia simultaneously by the downward movement of the carrier I5 in channels I6 in the guide I'I, thus ultimately bringing the appropriate cartridge into engagement with the aforesaid spring Vloaded detent 3 (see Figure 2) in order that the cartridge may be located correctly at the front 'end of the housing and supported in co-axial -alingment with the barrel. The reciprocating :imovement of the carrier vertically relatively to the axis of travel of the housing is controlled by I'an island type cam, i. e. spaced and opposed inclined cam surfaces I9 I9', 20 and 23' on a side plate 2| and top cover 22 respectively. That is to say the downward movement of the carrier I5 is effected during the rearward travel of the :horns I5 along the rear or descending part I9' aof the upper cam surface, and also during the .forward movement of the horns I5 along the --forwardly descending part of the lower cam Asurface, the return or upward movement being gderived from the cam or ramp surfaces 2D.
vWhen a round has been red its case is with- 7drawn as the breech block is retracted, by reason aof the interengagement of the cartridge case rim and the flanges I'Ia and in due course is ejected by the succeeding round forcing the empty carytridge case downwards over the detent 4.
g Assembled to the said carrier I5 is a spring i loaded ejector 23 pivoted on a pin 24 to a slide `25 slidably supported by the carrier for slight vertical reciprocation relatively to the carrier I5, this ejector operating to eject the case of the last cartridge from the lower end of the flanges -YI'Ia, the flanges in effect forming a T-section slot in the guide I'I to receive the cartridge case rims. This ejector is defiected as shown in Figure tI L bythe cartridge C1 in the feed box, and is .thereby caused to be inoperative until there is Ino cartridge in the belt, when as shown in Fig- ;ure 3, the ejector is urged slightly forward by v`its spring 26 and with the slide 25 is carried down with the carrier to its lowermost position as shown in Figure 4 to eject the cartridge case C2 of the last fired cartridge over and beyond the aforesaid spring loaded detent 3. For this latter operation the front edge of the slide is formed with a recess 21 dimensioned to receive readily the ejector 23, the ejector comprising a finger pivoted to the slide and spring loaded forwardly as aforesaid by the coiled compression spring '26, the arrangement being such that the lower part of this ejector is prevented from moving forwardly under the influence of such spring by reason of its engagement with the base of the appropriate cartridge C1 in the feed box, but following the removal of the last round in the feed box the ejector 23 is free to move forwardly on its pivot so that its lower end bears against the uppermost point of the base of the cartridge case and pushes such case downwardly beyond the spring loaded detent. Excepting when the last cartridge case is to be ejected the ejector 23 is prevented from being pressed forwardly by its spring 26 when the cartridge C is positioned (as in Figure 2) in the loading position, by the lower edge of this ejector abutting against a step 28 on the front end of the breech block, thus causing the extractor to be pushed upwards relatively to the carrier so that the lower part of the extractor lies behind the corner piece I 5a of the carrier.. The extractor is formed with a recess or step 23a adapted to slip over the corner piece IEa when the extractor comes opposite vthe empty feed box I8 (see Figure 3) so that it cannot now be moved upwardly relatively to the slide 25 and forms a positive abutment to engage and eject the last cartridge case as in Figure 4.
I claim:
1.' In a machine vgun of the Vickers type a side lever, a reciprocating breech block actuated by said side lever, a firing pin displaceable in and relatively to the breech block, and co-operating opposed abutment surfaces on the side lever and ring pin which abut together when the side lever is moved into a position to lock the breech, said ring pin being urged forwardly by reason of said engagement of the abutting surfaces at the completion of the locking movement ofthe side lever to fire the gun.
and carrying the firing pin, a trailing cam surface on said body, a co-operating abutment surface on the side lever to engage the said cam surface vwhen the lever is in the breech-closed position, and spring means yieldingly opposing forward displacement of the ring pin to the firing position and operating to present the cam surface of the said body for engagement by the said abutment surface of the side lever.
PERCY REUBEN HIGSON.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Name Date Eickhoff Jan. '17, 1922 Number
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US114573A US2635377A (en) | 1946-11-02 | 1949-09-08 | Cartridge case ejector for reciprocating breech block type of guns |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB28637/45A GB603750A (en) | 1945-10-29 | 1945-10-29 | Improvements in machine gun locks |
Publications (1)
Publication Number | Publication Date |
---|---|
US2509640A true US2509640A (en) | 1950-05-30 |
Family
ID=10278746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US707394A Expired - Lifetime US2509640A (en) | 1945-10-29 | 1946-11-02 | Machine gunlock |
Country Status (6)
Country | Link |
---|---|
US (1) | US2509640A (en) |
CH (1) | CH260607A (en) |
ES (1) | ES175499A1 (en) |
FR (1) | FR935143A (en) |
GB (1) | GB603750A (en) |
NL (1) | NL69808C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019124569A1 (en) * | 2019-09-12 | 2021-03-18 | Präzisionstechnik Volkach GbR (vertretungsberechtigte Gesellschafter: Wilfried Alber, 97332 Volkach; Georg Holthaus, 97318 Kitzingen) | Lock system |
DE102019135856A1 (en) * | 2019-12-30 | 2021-07-01 | Präzisionstechnik Volkach GbR (vertretungsberechtigte Gesellschafter: Wilfried Alber, 97332 Volkach; Georg Holthaus, 97318 Kitzingen) | Firearm |
US11255633B2 (en) | 2019-09-12 | 2022-02-22 | Wilfried Alber | Firearm |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1403492A (en) * | 1920-06-29 | 1922-01-17 | Auto Ordnance Corp | Hammer construction |
-
0
- NL NL69808D patent/NL69808C/xx active
-
1945
- 1945-10-29 GB GB28637/45A patent/GB603750A/en not_active Expired
-
1946
- 1946-10-26 FR FR935143D patent/FR935143A/en not_active Expired
- 1946-10-28 ES ES175499A patent/ES175499A1/en not_active Expired
- 1946-10-28 CH CH260607D patent/CH260607A/en unknown
- 1946-11-02 US US707394A patent/US2509640A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1403492A (en) * | 1920-06-29 | 1922-01-17 | Auto Ordnance Corp | Hammer construction |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019124569A1 (en) * | 2019-09-12 | 2021-03-18 | Präzisionstechnik Volkach GbR (vertretungsberechtigte Gesellschafter: Wilfried Alber, 97332 Volkach; Georg Holthaus, 97318 Kitzingen) | Lock system |
US10955211B1 (en) | 2019-09-12 | 2021-03-23 | Wilfried Alber | Lock system |
DE102019124569B4 (en) * | 2019-09-12 | 2021-05-06 | Präzisionstechnik Volkach GbR (vertretungsberechtigte Gesellschafter: Wilfried Alber, 97332 Volkach; Georg Holthaus, 97318 Kitzingen) | Lock system |
US11255633B2 (en) | 2019-09-12 | 2022-02-22 | Wilfried Alber | Firearm |
DE102019135856A1 (en) * | 2019-12-30 | 2021-07-01 | Präzisionstechnik Volkach GbR (vertretungsberechtigte Gesellschafter: Wilfried Alber, 97332 Volkach; Georg Holthaus, 97318 Kitzingen) | Firearm |
DE102019135856B4 (en) | 2019-12-30 | 2023-04-27 | Präzisionstechnik Volkach GbR (vertretungsberechtigte Gesellschafter: Wilfried Alber, 97332 Volkach; Georg Holthaus, 97318 Kitzingen) | firearm |
Also Published As
Publication number | Publication date |
---|---|
CH260607A (en) | 1949-03-31 |
GB603750A (en) | 1948-06-22 |
ES175499A1 (en) | 1947-03-16 |
NL69808C (en) | |
FR935143A (en) | 1948-06-10 |
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