US3486411A - Multiportion barrel for a launcher of fin-stabilized projectiles - Google Patents

Multiportion barrel for a launcher of fin-stabilized projectiles Download PDF

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Publication number
US3486411A
US3486411A US733970A US73397068A US3486411A US 3486411 A US3486411 A US 3486411A US 733970 A US733970 A US 733970A US 73397068 A US73397068 A US 73397068A US 3486411 A US3486411 A US 3486411A
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US
United States
Prior art keywords
barrel
parts
fin
launcher
multiportion
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
US733970A
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English (en)
Inventor
Benjamin Lichtenstern
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.)
Salgad
Original Assignee
Etablis Salgad
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 DE19671578006 external-priority patent/DE1578006C/de
Application filed by Etablis Salgad filed Critical Etablis Salgad
Application granted granted Critical
Publication of US3486411A publication Critical patent/US3486411A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/48—Barrel mounting means, e.g. releasable mountings for replaceable barrels
    • F41A21/482—Barrel mounting means, e.g. releasable mountings for replaceable barrels using continuous threads on the barrel
    • 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
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means

Definitions

  • FIG. 2 MULTIPORTION BARREL FOR' A LAUNCHER OF FIN-STABILIZED PROJECTILES Filed June 5, 1968
  • FIG. 2 MULTIPORTION BARREL FOR' A LAUNCHER OF FIN-STABILIZED PROJECTILES Filed June 5, 1968
  • FIG. 2 MULTIPORTION BARREL FOR' A LAUNCHER OF FIN-STABILIZED PROJECTILES Filed June 5, 1968
  • Both the muzzle and the base portion have mutually engaging threaded contacting surfaces and mutually engaging guiding contacting surfaces. These barrel portions are screwed into one another in a continuous manner. Groove means are provided between the contacting surfaces thereof to provide a method for conveying dirt away from the contacting surfaces and also provide a portable assembly that is very easily constructed or dismantled.
  • Mortars can usually be dismantled for carrying, as they consist of a barrel, a base-plate and a biped stand as separate parts.
  • the lower end of the barrel has a basepieoe which engages with the base-plate.
  • the barrel is the longest part of the mortar, considerably exceeding the dimensions of the biped stand or of the base-plate. This makes the barrel clumsy to transport.
  • the barrel exceeds the dimensions pemitted for direct carrying by the paratroopers. The result of this has been that when troops are carried by plane, the mortar could not be carried by the soldier, even when broken down into its component parts.
  • the object of the invention is to make it possible to keep all parts of the mortar below a pre-determined length, in order to make these parts suitable for carrying by the paratrooper himself.
  • the invention provides a barrel for a launcher for fin-stabilised projectiles, the barrel comprising two parts of approximately the same length adapted to be screwed together and having cooperating guiding surfaces.
  • the part nearer the muzzle end of the barrel extends over the other part where they are screwed together, the guiding surfaces being cylindrical and the parts having annular surfaces which come into sealing contact with each other.
  • Longitudinal grooves may pass through the guiding surface and the threading of the part on the inside of the screwed connection. In this way, any dirt on the guiding surfaces and the threading will be conveyed into the grooves during assembly of the barrel and out of harms way.
  • Each groove may also open at a slight incline to the outside so that dirt can be easily removed.
  • blind holes for the insertion of keys in the part on the outside of the screwed connection and in an annular re-inforcement of the other part.
  • FIG. 1 shows a longitudinal section of an example of a barrel according to the invention
  • FIG. 2 shows a side view of a barrel as in FIG. 1;
  • FIG. 3 shows a cross-section along line III--III of FIG. 1.
  • a barrel 1 of a mortar consists of two barrel-parts 2 and 3 of approximately the same length.
  • the part 2 is the upper part, whereas the part 3 is adapted to be fixed at the bottom to a base-plate (not shown).
  • the upper barrel-part 2 is provided with a sleeve 4, which has threading 5 on its inner surface between its ends.
  • the lower barrel-part 3 is correspondingly provided with threading 6.
  • Cylindrical guiding surfaces 7a, 7b and 8a, 8b are provided above and below the threaded sections 5 and 6. These guiding surfaces are preferably lipped surfaces. This applies in the same way to the barrel-part 3 with an annular surface 9a coming into contact, as a seal, with an annular surface 9b of the upper barrel-part 2.
  • both barrel-parts 2 and 3 can be screwed one into the other at the sleeve 4, in such a way that the guide-surface 8b is not completely covered by the sleeve 4, so that the grooves 10 open outwards at openings 11.
  • any dirt located on the connection-surfaces is pushed into grooves 10, whence it can be blown away.
  • the groove 10 emerges at a slight incline.
  • the longitudinal grooves 10 serves to catch any dirt present on the threading or the fitting-surfaces when screwing the parts 2 and 3 together.
  • the grooves are also provided in case leading surfaces 9a and 9b are not screwed firmly against one another. In this case, without the grooves 10, the issuing explosive gases would lead to melting on the guide-surfaces or on the threading.
  • the longitudinal grooves have the object of freely leading off any such issuing gases.
  • Blind holes 14 and 15 are provided in the re-inforced annular part 13 of the lower barrel-part 3 and in the sleeve 4 respectively; these holes serve for the insertion of the hook-shaped keys, so that with the aid of these tools barrel-parts 2 and 3 can easily be screwed together and taken apart again.
  • the holes 14 and 15 are so provided that the barrel wall is not weakened at the connection-point.
  • An assembly for use in firing fin-stabilized projectiles comprising:
  • each said muzzle portion and said base portion having mutually engaging threaded contacting surfaces and mutually engaging guiding contacting surfaces adjacent said threaded contacting surfaces, (c) at least one of said threaded contacting surfaces having a continuous thread structure providing means to screw said muzzle portion into said base portion, and (d) groove means extending through the threaded contacting surfaces and the guiding contacting surfaces without interrupting the thread structure.
  • said guiding contacting surfaces include first contiguous sections located on the base portion side of the threaded contacting surface, and. second contiguous sections" lo;
  • said groove means includes a longitudinal groove structure located along the threaded contacting surface and guiding contacting surfaces on one of the said barrel portions.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Insulators (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
US733970A 1967-06-05 1968-06-03 Multiportion barrel for a launcher of fin-stabilized projectiles Expired - Lifetime US3486411A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19671578006 DE1578006C (de) 1967-06-05 1967-06-05 Rohr fur flugelstabilisierte Ge schösse

Publications (1)

Publication Number Publication Date
US3486411A true US3486411A (en) 1969-12-30

Family

ID=5679029

Family Applications (1)

Application Number Title Priority Date Filing Date
US733970A Expired - Lifetime US3486411A (en) 1967-06-05 1968-06-03 Multiportion barrel for a launcher of fin-stabilized projectiles

Country Status (7)

Country Link
US (1) US3486411A (sv)
DK (1) DK118807B (sv)
FI (1) FI52773C (sv)
GB (1) GB1222674A (sv)
IL (1) IL30097A (sv)
NO (1) NO121537B (sv)
SE (1) SE349140B (sv)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9347719B1 (en) 2014-01-13 2016-05-24 Ra Brands, L.L.C. Replaceable feed ramp
US9383154B2 (en) 2013-12-12 2016-07-05 Ra Brands, L.L.C. Gas vent for firearm
US10365061B1 (en) * 2016-12-29 2019-07-30 Aaron E. Painter Firearm barrel with non-metal outer sleeve
US10948253B2 (en) 2017-01-13 2021-03-16 Wilcox Industries Corp. Sensor system for advanced smart weapons barrels
US11131518B2 (en) * 2017-01-13 2021-09-28 Wilcox Industries Corp. Modular barrel system and method for its manufacture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US347984A (en) * 1886-08-24 Best available copy
US1163450A (en) * 1915-02-27 1915-12-07 Hercules Pervelis Sectional gun.
GB177481A (en) * 1921-03-25 1922-07-27 John Cockerill Sa Improvements in field guns
US2543766A (en) * 1946-01-16 1951-03-06 Jr George B Davis Barrel extension and coupling device for attachment to gun barrels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US347984A (en) * 1886-08-24 Best available copy
US1163450A (en) * 1915-02-27 1915-12-07 Hercules Pervelis Sectional gun.
GB177481A (en) * 1921-03-25 1922-07-27 John Cockerill Sa Improvements in field guns
US2543766A (en) * 1946-01-16 1951-03-06 Jr George B Davis Barrel extension and coupling device for attachment to gun barrels

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9383154B2 (en) 2013-12-12 2016-07-05 Ra Brands, L.L.C. Gas vent for firearm
US9921019B2 (en) 2013-12-12 2018-03-20 Ra Brands, L.L.C. Gas vent for firearm
US9347719B1 (en) 2014-01-13 2016-05-24 Ra Brands, L.L.C. Replaceable feed ramp
US9562730B2 (en) 2014-01-13 2017-02-07 Ra Brands, L.L.C. Replaceable feed ramp
US10365061B1 (en) * 2016-12-29 2019-07-30 Aaron E. Painter Firearm barrel with non-metal outer sleeve
US10948253B2 (en) 2017-01-13 2021-03-16 Wilcox Industries Corp. Sensor system for advanced smart weapons barrels
US11131518B2 (en) * 2017-01-13 2021-09-28 Wilcox Industries Corp. Modular barrel system and method for its manufacture

Also Published As

Publication number Publication date
FI52773B (sv) 1977-08-01
IL30097A0 (en) 1969-01-29
NO121537B (sv) 1971-03-08
DE1578006A1 (de) 1971-09-23
GB1222674A (en) 1971-02-17
FI52773C (sv) 1977-11-10
IL30097A (en) 1973-01-30
DK118807B (da) 1970-10-05
SE349140B (sv) 1972-09-18

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