US2891448A - Feeding installation for feeding rounds of ammunition from a magazine to a hoist - Google Patents

Feeding installation for feeding rounds of ammunition from a magazine to a hoist Download PDF

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Publication number
US2891448A
US2891448A US642200A US64220057A US2891448A US 2891448 A US2891448 A US 2891448A US 642200 A US642200 A US 642200A US 64220057 A US64220057 A US 64220057A US 2891448 A US2891448 A US 2891448A
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United States
Prior art keywords
feeding
rounds
drum
hoist
compartments
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Expired - Lifetime
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US642200A
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English (en)
Inventor
Henstrom Steu August
Hultgren Karl Sten Rudolf
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Saab Bofors AB
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Bofors AB
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Publication date
Application filed by Bofors AB filed Critical Bofors AB
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Publication of US2891448A publication Critical patent/US2891448A/en
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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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/01—Feeding of unbelted ammunition
    • F41A9/04—Feeding of unbelted ammunition using endless-chain belts carrying a plurality of ammunition
    • F41A9/05—Feeding of unbelted ammunition using endless-chain belts carrying a plurality of ammunition in tandem sequence
    • 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
    • F41A9/02—Feeding of unbelted ammunition using wheel conveyors, e.g. star-wheel-shaped conveyors

Definitions

  • JTE/V- 00041 flULTG/QE'N 2,891,448 FEED ING rNsrALrArioNj Fen FEEDING ROUNDS F AMMUNITION FROM A MAGAZINE TO A V Sten August Henstrtim 'and Karl Ste n Rudolf Hultgren, Bofors, Sweden, assignorsto -Aktiebolaget Bofors, Bofors, Sweden, a corporation of Sweden Application February 25, 1957, Serial No. 642,200 Claims priority, application Sweden February 22, 1956 13 Claims. ((189 46) 1
  • the present invention relates to a feeding installation for feeding rounds of ammunition from a magazine to a hoist.
  • the rounds to be hoisted are fed to a compartmentalized drum forming part of the hoist proper and hoisted from the drum as the same is rotated step by step and successive rounds are mdvedirito alignment with the hoist shaft.
  • One of the objects of the present invention is to provide a novel and improved installation of the general kind above referred to, which permits? the rapid feeding of the hoist drum so as to utilize fully the capacity of the hoist without entailing the cumbersome and unreliable construction as heretofore known for the purpose.
  • Another object of the invention is to provide a novel and improved installation which permits the simultaneous feeding of several rounds to the hoist drum, all in the same radial direction.
  • Still another object of the invention is to provide a novel and improved installation without materially increasing the required space which is. often at a premium.
  • a further object of the invention is to provide a novel and improved installation in which several multiple feeding conveyors are provided each simultaneously feeding several rounds. This affords the advantage that the rapid feeding of different kinds of ammunition can be effected by selectively operating the conveyors while essentially preserving the aforedescribed advantages of simplicity and space reduction.
  • Fig. 1 is a diagrammatic isometric view of a feeding installation according to the invention for feeding ammunition to a gun turret.
  • Fig. 2 is a fragrnentary'horizontal section of the installation of Fig. 1 on an enlarged scale.
  • Fig. 3 is a section taken on line III- -III of Fig. 2.
  • Fig. 5 is a'horizontal section similar to Fig; 2 of a modification of the installation.
  • Fig. 1 shows a gun turret 1'.
  • This turret can be trained upon the target by traversing the upper part 2 of the turret and elevating or depressing the gun barrel 3.
  • the turret may be visualized as being mounted on a war ship, but it may also be a stationary emplacement.
  • Rounds 4 of ammunition are fed from a suitable magazine (not shown) through a shaft 5, shown as being horizontally disposed, to a rotary generally cylindrical drum 6.
  • This drum coacts with the hoist shaft 7 of the installation and is rotated step-by-step about a perpendicular axis by suitable drive means the design of which is not essential for the understanding of the invention and which are hence not shown in detail.
  • the round designated in Fig. 1 by 4a is positioned below hoist shaft 7 in axial alignment therewith so that it can be hoisted and delivered to the breech of barrel 3.
  • the means effecting the delivery of the round to the barrel does not constitute part of the present invention and its detailed description is not essential for the understanding of the same.
  • Shaft 5 is formed by outer walls 9, and a longitudinal partition Wall in the form of a T shaped rail 8 divides the shaft in two parallel longitudinal compartments.
  • the upper flange of rail 8 overlies the flanges' of the cartridge cases of the rounds while the same are conveyed through shaft 5 thereby steadying the'rounds in upright position.
  • the revolving drum 6 is shown as being divided by partition walls 6' in six longitudinal compartments circumferentially distributed about the perpendicular longitudinal rotational axis 16 of the drum.
  • the compartments are arranged in three groups of two compartments 10, 11; 12, 13 and 14, 15 each.
  • the radial median planes of the three groups are symmetrically spaced by angles of each. It is assumed that the drum can be moved through steps of 60" each and retained in each position so that there are'six stop positions of the drum during each revolution thereof.
  • Means suitable for the purpose are well known in the art. As' can best be seen in Fig.
  • Aspringrotated plunger 17 is provided in each compartinent, This plunger is pushed in when a round is inserted in the. compartment to prevent upward movements ofthe round during the rotation of the drum;
  • These lugs overlie the flanges of the cartridge cases of the rounds inserted in the compartments thereby preventing tipping of a round during the rotation of the drum, but release the rounds in the position in which a compare ment' is in alignment with the hoist shaft- 7, "comp re ment 15 being shown in' this position.
  • the lugs- 119 are controlled by means of a suitable linkage indicated by a-bar 20 linked to the lug and controlled for. instance by acain arrangement.
  • Fig. 3 shows diagrammatically the means for conveying successive rounds through shaft 5. These means are shown only to the extent necessary for the under- Standing of the invention. They comprise four guide members 21, 22, 23 and 24. Members 21'and 23 are bars rotatable but not axially displaceable and mount guide flaps 25. These flaps are shown in Fig. 3 in perpendicular position in which they release the rounds for movement along shaft 5. The two other members 22 and 24 are feeding bars which are both, rotatable and axially movable. They mount guide flaps 26 which in the position shown block a movement of rounds along shaft 5.
  • Fig. 4 illustrates the removal of a round from a compartment of the drum.
  • the hoist mechanism according to this figure comprises an endless chain 27 guided by means of pulleys 28 or other suitable means so that part of the chain passes alongside the drum from a point substantially perpendicular below hoist shaft 7.
  • the aforementioned casing formed by the extensions of walls 9 within which drum 6 is housed has a longitudinal slot 29 which is in registry with a similar longitudinal slot 30 in hoist shaft 7.
  • Chain 27 mounts and moves lugs 31 in the direction indicated in Fig. 4 by an arrow.
  • a cut-out 32 in the base of each compartment provides space for the lugs 31 to reach into the compartments andunder the bottom of a cartridge case placed. in a compartment thereby lifting the round in hoist shaft 7 as a lug 31 moves upwardly.
  • the spacing of the lugs on the chain is correlated with the disposition of the compartments in the drum and the required movement of the rounds in the hoist shaft.
  • Each rotation of the drum 6 by one step moves a new compartment into the position occupied in Fig. 2 by compartment 15.
  • a round can be hoisted as previously explained.
  • a new group of compartments emptied by the operation of the hoist will reach a position occupied in Fig. 2 by compartments and 11.
  • two new rounds can be simultaneously fed from shaft 5 to drum 6.
  • the Y period of time required for a feeding operation is short as only one forward movement of feeding members 22 and 24 is necessary to push two rounds into the respective compartments.
  • Fig. 5 two multiple feed shafts as previously described are provided in diametrically opposite arrangement.
  • the second shaft is designated by 32. Its operation isobvious from the previous description.
  • the second shaft, and if desired an additional shaft, may be used either to increase still further the capacity of the hoist, or to feed different kinds of ammunition to the gun by selectively operating one or the other feed shaft.
  • the provision of two or more multiple feed shafts increases the space requirements of the installation and makes the same somewhat more complicated, but these disadvantages are more than outweighed by the increase in capacity and the possibility of selecting the kind of ammunition to be fired.
  • the'installation according to Fig. 5 provides a much higher feed capacity than installations as heretofore known and occupying a comparable space.
  • a feeding installation for feeding rounds of ammunition from a magazine to a hoist, said installation comprising a generally cylindrical drum revoluble stepwise about a longitudinal axis, partition walls in said drum partitioning the same into several longitudinally disposed compartments each adapted to receive a round of ammunition, said compartments being arranged in several groups, each groupincluding an equal number Of several compartments, said drum having in its pe ripheral wall circumferentially spaced openings each constituting a feed opening for a respective compartment, feeder conveyor means for feeding a round of ammunition simultaneously to all the compartments in one group through the respective drum opening in a predetermined position of said group of compartments relative to the feeder conveyor means, and hoist means for hoisting a round from a compartment in another group in a predetermined rotational position of the drum relative to the hoist means.
  • said feeder means comprises several parallel conveyors circumferentially spaced around said drum by a distance corresponding to at least one full multiple of the angular distance between the compartments of each one of said groups, each one of said conveyors being separately and selectively actuated to feed a round of ammunition simultaneously to all of the compartments of one of said groups.
  • a feeding installation for feeding rounds of ammunition from a magazine to a hoist, said installation comprising a generally cylindrical drum revoluble stepwise about a perpendicular axis, partition walls in said drum partitioning the same into several longitudinally disposed compartments each adapted to receive a round of ammunition, said compartments being arranged in several groups, each group including an equal number of several compartments, said drum having in its peripheral Wall circumferentially spaced openings each constituting a feed opening for a respective compartment, a generally cylindrical casing housing said revoluble drum, said casing having in its peripheral wall a port corresponding in outline to the combined outline of the openings leading into the compartments forming a group, feeder conveyor means communicating with said casing port for simultaneously feeding through said port a number of rounds equal to the number of all the compartments in one group positioned in radial alignment with said casing port, and hoist means for hoisting a round from a compartment in a group other than the group in alignment with said port.
  • said feeder conveyor means comprises a conveyor shaft communicating at one end with said port, said end constituting the discharge end of the conveyor shaft.
  • said conveyor shaft includes longitudinal partion means dividing said shaft in as many longitudinal parallel tracks as there are compartments in one group, each of said tracks being adapted to receive one row of rounds.
  • said casing wall includes several circumferentially spaced ports
  • said feeder conveyor means comprises several conveyors each communicating with a respective one of said ports and each arranged to feed a round simultaneously to all the compartments in one group, said several conveyors being separately and selectively operable.
  • conveyor means comprise parallel conveyor tracks corresponding in number to the number of compartments in one group for simultaneously feeding all the compartments.
  • each of said feeding members comprises fiap members disposed transversely of the tracks and movable between one position steadying and moving the rounds toward said port upon longitudinal movement of the feeding members and another position clear of rounds on the tracks.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Specific Conveyance Elements (AREA)
  • Warehouses Or Storage Devices (AREA)
US642200A 1956-02-22 1957-02-25 Feeding installation for feeding rounds of ammunition from a magazine to a hoist Expired - Lifetime US2891448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE348895X 1956-02-22

Publications (1)

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US2891448A true US2891448A (en) 1959-06-23

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US642200A Expired - Lifetime US2891448A (en) 1956-02-22 1957-02-25 Feeding installation for feeding rounds of ammunition from a magazine to a hoist

Country Status (6)

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US (1) US2891448A (xx)
BE (1) BE555102A (xx)
CH (1) CH348895A (xx)
DE (1) DE1111539B (xx)
FR (1) FR1172644A (xx)
GB (1) GB800002A (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4961367A (en) * 1988-10-12 1990-10-09 Aktiebolaget Bofors Arrangement in an ammunition feeding path tanks
EP0403776A1 (de) * 1989-06-22 1990-12-27 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Patronenmagazin und Patronenzuführvorrichtung
US5103712A (en) * 1991-04-22 1992-04-14 Minovitch Michael Andrew Ammunition reloading system and operating method
USD900677S1 (en) * 2018-04-17 2020-11-03 Fnss Savunma Sistemleri A.S. Turret

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3025501C1 (de) * 1980-07-05 1985-07-25 KUKA Wehrtechnik GmbH, 8900 Augsburg Vorrichtung zum automatischen Laden einer in einem drehbaren Panzerturm eines Kampfpanzerfahrzeugs gelagerten Kanone mit grosskalibriger Munition
SE0000535L (sv) 2000-02-18 2001-03-19 Haegglunds Vehicle Ab Anordning för utmatning av granater ur ett ammunitionsmagasin samt granatmatningsinrättning innefattande två sådan anordningar

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2745317A (en) * 1950-09-01 1956-05-15 Arthur J Stanton Missile launcher

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR453499A (fr) * 1912-04-04 1913-06-09 Compagnie Des Forges Et Acieries De La Marine Et D Tourelle à quatre canons
FR576729A (fr) * 1923-12-05 1924-08-25 Soc D Const Des Batignolles Perfectionnements apportés aux soutes à munitions des navires de guerre
FR660930A (fr) * 1928-01-06 1929-07-18 Anciens Ets Sautter Harle Dispositif de chargement des norias et autres appareils élévateurs

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2745317A (en) * 1950-09-01 1956-05-15 Arthur J Stanton Missile launcher

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4961367A (en) * 1988-10-12 1990-10-09 Aktiebolaget Bofors Arrangement in an ammunition feeding path tanks
EP0403776A1 (de) * 1989-06-22 1990-12-27 Werkzeugmaschinenfabrik Oerlikon-Bührle AG Patronenmagazin und Patronenzuführvorrichtung
US5103712A (en) * 1991-04-22 1992-04-14 Minovitch Michael Andrew Ammunition reloading system and operating method
USD900677S1 (en) * 2018-04-17 2020-11-03 Fnss Savunma Sistemleri A.S. Turret

Also Published As

Publication number Publication date
DE1111539B (de) 1961-07-20
CH348895A (de) 1960-09-15
BE555102A (xx)
GB800002A (en) 1958-08-20
FR1172644A (fr) 1959-02-12

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