GB261872A - Improvements in or relating to ordnance breech mechanism - Google Patents

Improvements in or relating to ordnance breech mechanism

Info

Publication number
GB261872A
GB261872A GB23113/25A GB2311325A GB261872A GB 261872 A GB261872 A GB 261872A GB 23113/25 A GB23113/25 A GB 23113/25A GB 2311325 A GB2311325 A GB 2311325A GB 261872 A GB261872 A GB 261872A
Authority
GB
United Kingdom
Prior art keywords
breech
hand
spring
lever
crank
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
Application number
GB23113/25A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB23113/25A priority Critical patent/GB261872A/en
Priority to US131490A priority patent/US1622861A/en
Publication of GB261872A publication Critical patent/GB261872A/en
Expired legal-status Critical Current

Links

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
    • F41A5/32—Energy accumulator systems, i.e. systems for opening the breech-block by energy accumulated during barrel or gas piston recoil

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Table Equipment (AREA)

Abstract

261,872. Dawson, Sir A. T., and Buckham, Sir G. T. Sept. 16, 1925. Ordnance breech mechanism.-Semi-automatic guns of the vertically sliding breech-block type, adapted also to be operated by hand, are provided with two breech-closing springs one of which is always in action while the other is inoperative when the mechanism is operated by hand. The first spring approximately balances the weight of the breech-block. The breech mechanism shown comprises a breech-ring A, vertically-sliding block B, breech-actuating crank-shaft D and hand-lever C. The balancing spring E, Fig. 3, is mounted in a recess at the left side of the breech-ring A and is acted upon by a rack member E<2> engaging a part pinion D' on the crank shaft so that this spring E is compressed whenever the breech is opened, whether automatically or by hand. The main closing spring F is mounted in the hand-lever C and acts upon a rack F<2> engaging a part pinion D<5> on the crank shaft. During semi-automatic actuation, the hand-lever C is locked to the breech-ring by a plunger C', Fig. 5, and the spring F is compressed when the breech is opened. During hand actuation, the handlever C is locked to the crank shaft D by a catch C<4>, Fig. 5, which is turned by a hand grip C<5> to engage a notch D<6> in the part pinion D<5>. The spring then merely moves with the hand-lever without being compressed. The semi-automatic mechanism comprises a crank D<2> having a lateral projection D<3> co-operating with a cam D<4>, Fig. 3, as described in Specification 261,500.
GB23113/25A 1925-09-16 1925-09-16 Improvements in or relating to ordnance breech mechanism Expired GB261872A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB23113/25A GB261872A (en) 1925-09-16 1925-09-16 Improvements in or relating to ordnance breech mechanism
US131490A US1622861A (en) 1925-09-16 1926-08-25 Ordnance breech mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23113/25A GB261872A (en) 1925-09-16 1925-09-16 Improvements in or relating to ordnance breech mechanism

Publications (1)

Publication Number Publication Date
GB261872A true GB261872A (en) 1926-12-02

Family

ID=10190320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23113/25A Expired GB261872A (en) 1925-09-16 1925-09-16 Improvements in or relating to ordnance breech mechanism

Country Status (2)

Country Link
US (1) US1622861A (en)
GB (1) GB261872A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924748A (en) * 1988-07-04 1990-05-15 Rheinmetall Gmbh Hand-operated lever for opening and closing a wedge-like breechblock

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB579998A (en) * 1943-06-15 1946-08-22 Felix Frederic Ruau Improvements in or relating to ordnance
US3218930A (en) * 1952-08-27 1965-11-23 Philias H Girouard Gun mount with ammunition supplying means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4924748A (en) * 1988-07-04 1990-05-15 Rheinmetall Gmbh Hand-operated lever for opening and closing a wedge-like breechblock

Also Published As

Publication number Publication date
US1622861A (en) 1927-03-29

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