US2048395A - Machine gun - Google Patents

Machine gun Download PDF

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Publication number
US2048395A
US2048395A US704835A US70483534A US2048395A US 2048395 A US2048395 A US 2048395A US 704835 A US704835 A US 704835A US 70483534 A US70483534 A US 70483534A US 2048395 A US2048395 A US 2048395A
Authority
US
United States
Prior art keywords
crank
recoil
spring
pivot
barrel
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
US704835A
Other languages
English (en)
Inventor
Larsson Carl Alfred
Higson Percy Reuben
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.)
Vinters Armstrongs Ltd
Original Assignee
Vickers Armstrongs Ltd
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
Priority claimed from GB3640/33A external-priority patent/GB411971A/en
Application filed by Vickers Armstrongs Ltd filed Critical Vickers Armstrongs Ltd
Application granted granted Critical
Publication of US2048395A publication Critical patent/US2048395A/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
    • F41A3/36—Semi-rigid bolt locks, i.e. having locking elements movably mounted on the bolt or on the barrel or breech housing
    • F41A3/50—Toggle-joint locks, e.g. crank-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
    • F41A3/64—Mounting of breech-blocks; Accessories for breech-blocks or breech-block mountings
    • F41A3/78—Bolt buffer or recuperator means
    • F41A3/82—Coil spring buffers
    • 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

  • This invention relates to machine guns of the barrel recoiling type in which the lock is connected by a connecting rod to a spring controlled crank pivoted to recoil plates connected to the barrel.
  • the main object of the invention is to accelerate return of the recoiling parts to the firing position.
  • Figure l is a side elevation of the rear portion of a gun provided with our improvements
  • Figure 2 is a central vertical longitudinal section' of Figure 1
  • Figure 3 is a section taken approximately on the line 3, 3 of Figure 2 but with the recoil spring and its associated parts removed,
  • Figure 4 is a sectional plan of Figure 1.
  • Figure 5 is a sectional view showing the forward part of the gun, the rear part of which is shown in Figures 1 and 2, and- Figure 6 is a View similar to Figure 2 but showing the parts in the maximum recoil position.
  • A ( Figures 1 and 4) is the connecting rod which is pivoted at its front end to the lock A4 and at its rear end is pivoted at A to the spring controlled crank B having a spindle B' pivoted in the recoil plates C, C connected to the barrel, all as is well understood, and D is the recoil spring for opposing the rearward movement of the recoiling parts and for returning them to the forward or firing position.
  • the crank is provided with a downwardly extended projection B2 which co-operates with a roller E as the crank moves rearwardly on recoil so as to initiate the angular movement of the crank.
  • the said projection B2 is for practical purposes composed of two limbs arranged one on each side of, and at equal distances from, a vertical longitudinal plane containing the axis of the gun as shown in Figure 3 but it is theoretically a single projection and is herein regarded as such.
  • the recoil spring D is in the form of a helical compression spring the front end of which bears against a bracket D pivoted at D2 to the crank B, the pivot D2 and the bracket D' being situated above the level of the axis of the crank as shown in Figure 2.
  • the rear end of the spring D bears against a washer D3 that is provided with a rear curved surface resting in a correspondingly shaped recess in the front end of a screw-threaded plug D4 carried by the handle block D5, rotation of this plug varying the initial compression of the spring.
  • the said bracket D' has a rod DX projecting through the spring D to centralize the latter, the rear end of this rod passing through a hole in the washer D3 and being provided with a nut dx. 5
  • the crank B also has cam faces B3, B3 above the level of the axis of the crank in the forward position for engaging stationary surfaces B4, B4 to limit the angular movement of the crank during recoil. Furthermore the recoil movement of 10 the barrel is cushioned by means of spring plungers B5, B5 which are carried at the rear ends of the side plates of the gun casing and with which the rear faces of the aforesaid recoil plates C, C co-operate during the recoil movement of the 15 barrel.
  • the spindle B' of the crank B may project through both side plates of the gun casing as shown in Figure 4 to enable the crank handle BX to be connected to either of the projecting por- 20 tions of the spindle.
  • R is the gun barrel and A4 is the gun lock to which the rod A is pivotally attached at A3.
  • a machine gun having a recoiling barrel, a 45 lrst pivot connected with the barrel so as to move with the latter in the recoiling movements of the same, a crank located on and movable around said rst pivot, a recoiling lock pivotally connected to the crank, a second pivot mounted 50 upon said crank and located with its axis above that of said rst pivot, a member mounted loosely on said second pivot and extending rearwardly therefrom, a helical recoil spring for opposing the movement of the recoiling barrel and crank 55 and for returning them to the forward position, said spring having its forward end seated upon said member and such forward end being located above the axis of said first pivot, an element pivotally mounted with respect to the gun casing and formed to receive the rear end of said recoil spring, and means acting to ⁇ limit recoil movement of the crank When the latter has reached a position in which the recoil spring is at maximum 10 compression and when said second pivot has swung around with the crank until its
  • a machine gun as claimed in claim 1 having faces on the crank above'the level of said pivot in the forward position, and stationary members for engagement by the said faces at maximum recoil to limit recoil shortly before the rst and second pivot would have reached a position of alignment with reference to the recoil spring.
  • CARL ALFRED LARSSON PERCY REUBEN HIGSON.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Transmission Devices (AREA)
US704835A 1933-02-06 1934-01-02 Machine gun Expired - Lifetime US2048395A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3639/33A GB414658A (en) 1933-02-06 1933-02-06 Improvements in or relating to machine guns
GB3640/33A GB411971A (en) 1933-02-06 1933-02-06 Improvements in or relating to machine guns

Publications (1)

Publication Number Publication Date
US2048395A true US2048395A (en) 1936-07-21

Family

ID=40566293

Family Applications (2)

Application Number Title Priority Date Filing Date
US704835A Expired - Lifetime US2048395A (en) 1933-02-06 1934-01-02 Machine gun
US704834A Expired - Lifetime US2013312A (en) 1933-02-06 1934-01-02 Machine gun

Family Applications After (1)

Application Number Title Priority Date Filing Date
US704834A Expired - Lifetime US2013312A (en) 1933-02-06 1934-01-02 Machine gun

Country Status (5)

Country Link
US (2) US2048395A (enrdf_load_html_response)
BE (2) BE400533A (enrdf_load_html_response)
CH (2) CH177296A (enrdf_load_html_response)
FR (2) FR765907A (enrdf_load_html_response)
GB (1) GB414658A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000267A (en) * 1952-09-24 1961-09-19 Russell S Robinson Breech bolt operating mechanism

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2635377A (en) * 1946-11-02 1953-04-21 Vickers Armstrongs Ltd Cartridge case ejector for reciprocating breech block type of guns
US3394839A (en) * 1963-11-29 1968-07-30 Fmc Corp Metallic container and closure means therefor
US8382602B2 (en) * 2007-11-30 2013-02-26 Frederick Rieber Enclosed slide
US7815513B2 (en) * 2007-11-30 2010-10-19 Frederick Rieber Enclosed slide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000267A (en) * 1952-09-24 1961-09-19 Russell S Robinson Breech bolt operating mechanism

Also Published As

Publication number Publication date
CH177296A (fr) 1935-05-31
BE400533A (enrdf_load_html_response) 1934-01-31
CH176667A (fr) 1935-04-30
US2013312A (en) 1935-09-03
FR765907A (fr) 1934-06-18
BE400532A (enrdf_load_html_response) 1934-01-31
GB414658A (en) 1934-08-07
FR765908A (fr) 1934-06-15

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