US2770988A - Misfired projectile extractor - Google Patents

Misfired projectile extractor Download PDF

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Publication number
US2770988A
US2770988A US368559A US36855953A US2770988A US 2770988 A US2770988 A US 2770988A US 368559 A US368559 A US 368559A US 36855953 A US36855953 A US 36855953A US 2770988 A US2770988 A US 2770988A
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US
United States
Prior art keywords
projectile
tube
fuse
pawls
grapple device
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
US368559A
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English (en)
Inventor
Jasse Joseph Raymond
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.)
NOUVELLE des Ets BRANDT Ste
BRANDT SOC NOUV ETS
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BRANDT SOC NOUV ETS
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 BRANDT SOC NOUV ETS filed Critical BRANDT SOC NOUV ETS
Application granted granted Critical
Publication of US2770988A publication Critical patent/US2770988A/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
    • 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
    • F41A15/22—Tools for extracting cartridges

Definitions

  • the present invention relates to the extraction of a projectile that, after a misfire, remains in the tube of a anortar or like gun which is loaded from the nozzle en
  • the usual method of extracting the projectile consists in removing the fuse of the projectileand'replacing this fuse by a metal piece which is screwed on the projectile. A metal tube is then connectedto this piece and is drawn out of the mortar tube by means of two laterally extending rods. This procedure is. somewhat delicate and dangerous and requires about five minutes.
  • the invention has for its object toprovide anextracting device which is simple in construction, particularly easy to use, and absolutely safe, and which permits a projectile that remains in the tube of a mortar or other gun after a misfire to be rapidly extracted.
  • the invention has more particularly for its object to provide an extracting device which comprises in combination: firstly, a grapple device formed of an annularbody having outer dimensions that substantially. correspond to the calibre of said tube so as to ensure the guiding thereof in the latter, the central aperture of said body being so adapted as to surround the fuse of the projectile without touching this fuse even when the wall of this aperture enters into contact with the projectile, several pawls pivotally mounted on transverse pivot pins in slots provided in said body, and elastic means acting on these pawls in such manner that one of the ends of each pawl that forms a sharp transverseedge projects into said aperture in such position relative to the pivot pin of the pawl that it bears against the fuse of the projectile in the course of engaging said body on the projectile and wedges itself against this fuse when the body of the grapple device is pulled out of the tube, and, secondly, means connected to said body of the grapple device whereby the grapple device may be pulled out of thetube from a position exterior of the tube of the gun.
  • the device operates automatically, independently of the operator, and requiresno setting. The operation lastsonly about fifteen seconds and this presents a tactical advantage in that it reduces to a minimum the interruption of the firing.
  • the device is applicable to any standard fuse of brass or light metal.
  • Fig. l is a diagrammatic View in perspective, with a broken away portion, of a mortar in which the device according to the invention is shown in the course of the extractionof the projectile,
  • Fig. 2 is a longitudinal sectional view to a larger scale, oftherdevice, the grapple device being shown in the intermediate. position it' assumes in the course of its introduction into the, tube of the gun,
  • FIG 3 isan elevationaiview f h r pp e.
  • Fig. 4 is a view of the bottom end of the grapple de- 2,770,988 Patented Nov. 20,, 1 956 2. vice i. e. the end face thereof adjacent the projectile when this grapple device is in operation,
  • Fig. 5 is a longitudinal 'sectional'view of this grapple device at the moment when its pawls encounter the fuse of the projectile
  • Fig. 6 is a similar sectional view of this grapple device in the position it assumes when ready for the extraction of the projectile
  • Figs. 7 and 8' are two diagrams, to a larger scale, showing respectively the behaviour of a pawl when pulling out the grapple device and the behaviour of the elastic device acting on the pawls when only one pawl is. depressed.
  • the device is adapted to extract a shell or like projectile from the tubel of a gun or a mortar, for example the mortar represented in Fig. l which rests on a rear support plate 2 anchored in the ground and on a front stand 3.
  • This projectile has a front ogive 5 at the end of which is screwed a fuse6.
  • the device according to the invention comprises in combination: a grapple device A adapted to be intro: Jerusalem in the tube 1 through the open end 7 of the latter so as to engage the fuse 6, a strong flexible cord B, of hemp for example, adapted to lower the grapple device A in the tube 1 and subsequently draw it out with the projectile, and a ring C adapted to be placed over the end 7 of the tube 1 for guiding the cord B.
  • the grapple device A comprises a cylindrical body 8 the outer diameter of which is equal, except for a very slight clearance, to the inside diameter d of the tube 1 of the mortar.
  • This body 8 is preferably a light alloy casting and is provided on its upper face with an eyelet 9.
  • a through passage or aperture is provided in this body along the axis thereof.
  • This aperture is composed of, starting from the flat base 10 at the end of the grapple device remote from the eyelet 9, an ogival portion adapted to receive and fit over the ogive 5 of the projectile, thereafter a cylindrical portion 12 having a diameter greater than the overall diameter of the fuse 6, thereafter an end portion 13 having a smaller diameter and forming with the portion 12 a shoulder 14.
  • each slot 15 constitutes a through hole beginning at the outer cylindrical surface of the body 8 and ending at the portions 11 and 12 of the axial aperture provided in this body.
  • This slotv 15 includes on its upper face a shoulder 16 directed towards the exterior of the body 8.
  • each pawl a is pivotally mounted on a pivot pin 17 that is disposed perpendicular to the longitudinal axis of the grapple device A.
  • Each pawl which is of treated hard steel or other like material, comprises essentiallyttwo branches 18 and 19 arranged in the form of an L.
  • the branch 19, extends in a direction substantially parallel to the axis XX.
  • a knurled portion or ribs 21 On the side of the branch 19 facing away from the axis XX of the body 8 there is provided a knurled portion or ribs 21. On each pawl a is provided a heel 22 that lies substantiallyin the extension of the branch 19 but on the opposite of the pin 17 to the; latter. This heel is adapted to cooperate with the shoulder 16 of the corresponding slot 15.
  • the pawls a are held in the extreme position shown in Fig; 2 so that the heels 22 of the pawls abut against the shoulders 16 of the slots.
  • the shapes of the pawls and the position of the shoulders 16 are so arranged that in this position the edges 20 of the pawls lie slightly to one side of the plane YY, perpendicular to the axis XX and passing through the geometric aXis of the pins 17, i. e. on the side of the plane YY towards the eyelet 9.
  • the collar C (Figs. 1 and 2) comprises a recess 25 by means of which it may be fitted on the end 7 of the tube 1 of the mortar.
  • the inner cylindrical surface 26 of this collar has a diameter at least equal to the inside diameter of the tube 1 so that this collar does not hinder the easy extraction of the projectile 4 from the tube.
  • This collar carries two parallel arms 27 which are outwardly inclined with respect to the tube 1 and form a fork in which is adapted to rotate, about a pin 28, a grooved pulley 29.
  • One end of the cord B is attached to a fixed point outside the tube 1, for example to the point 30 on the stand 3 (Fig. 1).
  • This cord is then passed through the eyelet 9 of the grapple device A.
  • the latter is then slipped into the end of the tube 1, and the cord B forms a loop.
  • the portion of the cord B attached to the fixed point 30 bears against the collar C at 31.
  • the other portion of the cord passes over the pulley 28 and is held by one of the firing crew situated behind the tube. This person, by gradually playing out the cord, controls the descent of the grapple device A into the tube 1 under the effect of gravity.
  • the grapple device A is guided by the tube 1.
  • the fuse is released from the grapple device A by merely depressing the portions 21 on the branches 19 of at least two pawls a.
  • Device for extracting after a misfire a projectile and its fuse from the tube of a muzzle-loaded mortar or other arm comprising in combination: a cylindrical body having a forward plane transverse face and a transverse rear 'face; said body having a central cavity opening at least on said forward face, the walls of said cavity being adapted to surround said fuse without contacting it, even when said walls contact said projectile; said body having a plurality of radial slots between said cavity and the lateral outer wall thereof; the walls of each of said slots forming an outward shoulder; a gripping pawl in each slot and pivotable around an axis within said slot; the axis of all said pawls being located in a single transverse plane parallel to said forward face; each said pawl having substantially the shape of a T, the first branch of which is radially directed towards, and projects into, said central cavity, the end of said first branch being formed into a sharp edge parallel to said transverse plane; the second branch of each said T-shaped pawls being substantially parallel
  • said body includes an eyelet rigidly connected with the rear face of said body; and comprising further a crown to fit over the end ofthe muzzle, a fork attached to said crown and inclined outwardly from said tube, a pulley pivotally mounted in said fork, a traction cord passing over said pulley and through said eyelet; whereby the projectile can be safely extracted from 'the arm by a traction exerted on 1,657,368 Carter Jan. 24, 1928 said cord from a position rearward of the muzzle. 1,738,789 Newkirk Dec. 10, 1929 1,749,869 Baumbach Mar.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
US368559A 1952-07-24 1953-07-17 Misfired projectile extractor Expired - Lifetime US2770988A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1060600T 1952-07-24

Publications (1)

Publication Number Publication Date
US2770988A true US2770988A (en) 1956-11-20

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ID=9599708

Family Applications (1)

Application Number Title Priority Date Filing Date
US368559A Expired - Lifetime US2770988A (en) 1952-07-24 1953-07-17 Misfired projectile extractor

Country Status (6)

Country Link
US (1) US2770988A (nl)
BE (1) BE521299A (nl)
CH (1) CH312246A (nl)
FR (1) FR1060600A (nl)
GB (1) GB734641A (nl)
NL (2) NL180034B (nl)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869917A (en) * 1956-12-20 1959-01-20 Gen Motors Corp Extractor
US3055008A (en) * 1959-04-21 1962-09-25 Star Expansion Ind Corp Powder actuated tool
EP1691162A1 (de) * 2005-02-10 2006-08-16 Rheinmetall Waffe Munition GmbH Vorrichtung zum Entladen einer Mörserpatrone
EP1712872A1 (de) 2005-04-13 2006-10-18 Rheinmetall Waffe Munition GmbH Vorrichtung zum Entladen einer Mörserpatrone
FR2975178A1 (fr) * 2011-05-11 2012-11-16 Nexter Systems Dispositif d'extraction d'un projectile de gros calibre et procede d'extraction mettant en oeuvre un tel dispositif
DE102014111307B3 (de) * 2014-08-07 2015-11-26 Rheinmetall Waffe Munition Gmbh Vorrichtung zum mündungsseitigen Entladen eines Geschosses aus einem Waffenrohr
KR20150145626A (ko) * 2014-06-20 2015-12-30 에스앤티중공업 주식회사 곡사 화기용 불발 포탄 제거기구
EP3040673A1 (en) 2015-01-02 2016-07-06 Expal Systems SA Mortar shell extraction system
WO2021224764A1 (fr) * 2020-05-07 2021-11-11 Nexter Systems Dispositif d'extraction d'un projectile de gros calibre coincé dans un tube d'une pièce d'artillerie
RU212593U1 (ru) * 2022-01-11 2022-07-29 Федеральное государственное казенное военное образовательное учреждение высшего образования "ВОЕННАЯ АКАДЕМИЯ МАТЕРИАЛЬНО-ТЕХНИЧЕСКОГО ОБЕСПЕЧЕНИЯ имени генерала армии А.В. Хрулева" Экстрактор учебного снаряда из ствола самоходной гаубицы 2С19М2

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221789A1 (fr) * 1985-08-30 1987-05-13 Christian Losfeld Dispositif de tir réduit au mortier
FR2586799B1 (fr) * 1985-08-30 1990-04-27 Losfeld Christian Dispositif de tir reduit au mortier
FR3097041B1 (fr) * 2019-06-06 2021-05-21 Thales Sa Berceau de réception pour munition et procédé d’extraction associé
US11112198B2 (en) 2020-01-09 2021-09-07 Raytheon Company Extraction press assembly for use with bored structures
US11536528B2 (en) 2020-01-09 2022-12-27 Raytheon Company Extraction pole assembly for extracting projectiles from a bore
FR3130953B1 (fr) 2021-12-16 2023-11-24 Thales Sa Dispositif d’extraction pour munition et procédé d’extraction associé

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE226580C (nl) *
US1402677A (en) * 1920-08-02 1922-01-03 Smith Harry Irvin Fishing tool
US1553991A (en) * 1923-02-20 1925-09-15 William E Davison Fishing tool
US1563600A (en) * 1923-11-27 1925-12-01 John R Walton Well drill and tool
US1657368A (en) * 1924-07-26 1928-01-24 Oscar M Carter Core barrel
US1738789A (en) * 1927-11-05 1929-12-10 Edgar H Newkirk Outside fishing tool for use in deep wells
US1749869A (en) * 1928-10-29 1930-03-11 Albert G Baumbach Fishing tool
US2405018A (en) * 1945-02-17 1946-07-30 Victor Metal Products Corp Automatic gripper
US2410262A (en) * 1945-08-20 1946-10-29 Neil T Breaux Overshot
US2478019A (en) * 1945-05-21 1949-08-02 Cons Vultee Aircraft Corp Releasable load carrier for aircraft

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE226580C (nl) *
US1402677A (en) * 1920-08-02 1922-01-03 Smith Harry Irvin Fishing tool
US1553991A (en) * 1923-02-20 1925-09-15 William E Davison Fishing tool
US1563600A (en) * 1923-11-27 1925-12-01 John R Walton Well drill and tool
US1657368A (en) * 1924-07-26 1928-01-24 Oscar M Carter Core barrel
US1738789A (en) * 1927-11-05 1929-12-10 Edgar H Newkirk Outside fishing tool for use in deep wells
US1749869A (en) * 1928-10-29 1930-03-11 Albert G Baumbach Fishing tool
US2405018A (en) * 1945-02-17 1946-07-30 Victor Metal Products Corp Automatic gripper
US2478019A (en) * 1945-05-21 1949-08-02 Cons Vultee Aircraft Corp Releasable load carrier for aircraft
US2410262A (en) * 1945-08-20 1946-10-29 Neil T Breaux Overshot

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2869917A (en) * 1956-12-20 1959-01-20 Gen Motors Corp Extractor
US3055008A (en) * 1959-04-21 1962-09-25 Star Expansion Ind Corp Powder actuated tool
EP1691162A1 (de) * 2005-02-10 2006-08-16 Rheinmetall Waffe Munition GmbH Vorrichtung zum Entladen einer Mörserpatrone
EP1712872A1 (de) 2005-04-13 2006-10-18 Rheinmetall Waffe Munition GmbH Vorrichtung zum Entladen einer Mörserpatrone
FR2975178A1 (fr) * 2011-05-11 2012-11-16 Nexter Systems Dispositif d'extraction d'un projectile de gros calibre et procede d'extraction mettant en oeuvre un tel dispositif
KR20150145626A (ko) * 2014-06-20 2015-12-30 에스앤티중공업 주식회사 곡사 화기용 불발 포탄 제거기구
KR101595911B1 (ko) * 2014-06-20 2016-02-19 에스앤티중공업 주식회사 곡사 화기용 불발 포탄 제거기구
DE102014111307B3 (de) * 2014-08-07 2015-11-26 Rheinmetall Waffe Munition Gmbh Vorrichtung zum mündungsseitigen Entladen eines Geschosses aus einem Waffenrohr
EP3040673A1 (en) 2015-01-02 2016-07-06 Expal Systems SA Mortar shell extraction system
WO2016107891A1 (en) * 2015-01-02 2016-07-07 Expal Systems S.A Mortar shell extraction system
CN107429980A (zh) * 2015-01-02 2017-12-01 艾克普尔系统公司 迫击炮弹取出系统
US10234223B2 (en) 2015-01-02 2019-03-19 Expal Systems S.A. Mortar shell extraction system
CN107429980B (zh) * 2015-01-02 2019-07-19 艾克普尔系统公司 迫击炮弹取出系统
WO2021224764A1 (fr) * 2020-05-07 2021-11-11 Nexter Systems Dispositif d'extraction d'un projectile de gros calibre coincé dans un tube d'une pièce d'artillerie
FR3109989A1 (fr) * 2020-05-07 2021-11-12 Nexter Systems Dispositif d'extraction d'un projectile de gros calibre coincé dans le tube d'une pièce d'artillerie
RU212593U1 (ru) * 2022-01-11 2022-07-29 Федеральное государственное казенное военное образовательное учреждение высшего образования "ВОЕННАЯ АКАДЕМИЯ МАТЕРИАЛЬНО-ТЕХНИЧЕСКОГО ОБЕСПЕЧЕНИЯ имени генерала армии А.В. Хрулева" Экстрактор учебного снаряда из ствола самоходной гаубицы 2С19М2

Also Published As

Publication number Publication date
GB734641A (en) 1955-08-03
CH312246A (fr) 1955-12-31
NL180034B (nl)
NL89896C (nl)
BE521299A (nl)
FR1060600A (fr) 1954-04-02

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