US3242815A - Cartridge ramming device for introducing cartridges into the cartridgechamber of the barrel of a gun - Google Patents

Cartridge ramming device for introducing cartridges into the cartridgechamber of the barrel of a gun Download PDF

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Publication number
US3242815A
US3242815A US414751A US41475164A US3242815A US 3242815 A US3242815 A US 3242815A US 414751 A US414751 A US 414751A US 41475164 A US41475164 A US 41475164A US 3242815 A US3242815 A US 3242815A
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United States
Prior art keywords
rammer
detent
cartridge
ramming
actuating means
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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
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US414751A
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English (en)
Inventor
Christiansson Carl Mauritz
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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 US3242815A publication Critical patent/US3242815A/en
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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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/38—Loading arrangements, i.e. for bringing the ammunition into the firing position
    • F41A9/39—Ramming arrangements
    • F41A9/42—Rammers separate from breech-block

Definitions

  • a rammer detent which during ramming cooperates with the bottom surface of a cartridge casing to bring the cartridge forward
  • this component is arranged so as to be brought into a position in which it is located out of the way of a shell casing ejected backwards after firing past the ramming device when the ramming device returns back to its rearmost position, that is, the start position thereof for a successive ramming movement.
  • One object of the invention is to provide a cartridge ramming device in which the component thereof actuating the cartridge bottom during ramming and constituting a rammer detent which is pivotally attached to a reciprocating rammer member is brought out of the way of a rearwardly ejected empty casing already during an early part of the return movement of said reciprocating rammer member after ramming.
  • a further object of the invention is to provide a ramming device of the kind described in which said pivotal rammer detent is brought into position for ramming a following cartridge by being swung into its active position for ramming in dependence of a shell casing ejected backwardly past the ramming device after firing.
  • the successive discharges of cartridges can take place at intervals, the minimum extent of which is being determined exclusively by the period of time required for a forward and backward stroke of the ram-mer.
  • the discharge of a cartridge can take place without any substantial loss of time after ramming, and the empty shell casing ejected and pass past the ramming device without obstruction while the rammer is moving back towards the start position for a following ramming.
  • the invention relates to a ramming device comprising a reciprocating rammer member which is movable between a front end position and Patented Mar. 29, 1966 a rear end position along a cartridge-guide means defining a path of a cartridge moving along the guide for pushing forward a cartridge to the cartridge-chamber of a gun during a forward stroke, said rammer member carrying a rammer detent which is pivotally attached to said rammer member and pivotal between an active position for cooperation with a cartridge for bringing forward the cartridge during a forward stroke of said rammer member, and an inactive position in which it is swung out of the way of a cartridge moving along the cartridge-guide, a directional force means being present to yieldingly ring the rammer detent to its active position.
  • a ramming device of this kind comprises a pivotal rammer detent actuating means which is, as described below, cooperant with the rammer detent and pivotal about an axis extending perpendicularly to the direction of movement of the rammer member.
  • the rammer detent actuating means comprises a rotatable cam member and the rammer detent comprises a lever cooperative with said cam member to swing the rammer detent between the active position and the inactive position thereof.
  • the cam member has to this end a portion so dimensioned that in a first position of the detent actuating means the rammer detent is caused to move into its active position for ramming by influence of said directional force, and a portion so dimensioned that in a second position of the detent actuating means the rammer detent is held in the inactive position thereof against the action of said directional force.
  • the detent actuating means comprises a cam rocking lever which is pivotal together with the cam member to move the detent actuating means between said two positions and which is, for this purpose, cooperative with an abutment member located beside the path of the rammer member carrying the rammer detent as well as beside the path of a cartridge along the cartridge-guide means.
  • the cam rocking lever and the abutment member :cooperant therewith are mutually so arranged, with the abutment member in the path of the rocking lever during the forward and backward movement thereof together with the reciprocating rammer member, that the rocking lever in a first position in which the cam member is turned into a position so as to allow the rammer detent to move into its said active position can pass past the abutment member during a forward movement of said rammer member.
  • the rocking lever passes the abutment member the detent actuating means is being articulated an angle out of said first position, however, an angle less than that required for bringing the rammer detent out of its active position.
  • This articulating proceeds against the action of a directional force tending to bring back the rocking lever into its said first position after having passed the abutment member.
  • the cam rocking lever and the abutment are further so arranged, that in this first position of the detent actuating means the rocking lever is, during a return movement of the rammer following on its forward movement, being caught by the abutment member so as to articulate the detent actuating means into said second position, in which position the cam member thereof actuates the rammer detent to hold in its inactive position.
  • the rammer detent actuating means comprises a member extending into the path of a rearwardly ejected casing in said second position of the rammer detent actuating means to swing said means from its said second position into its first position when said member is being actuated by a cartridge rearwardly ejected along the cartridge-guide.
  • the rammer detent will be swung out of its active position for ramming already at the very beginning of or in any case at a sufhciently early point of time during the following return movement of the rammer by the rocking lever, during its return movement, striking against the abutment member and articulating the detent actuating means as a whole into said second position in which the cam member thereof holds the rammer detent in its inactive position.
  • the actuating member of the detent actuating means arranged to cooperate with a shell casing ejected rearwardly to bring back the detent actuating means into its said first position may be the rocking lever itself, or an .arm extending therefrom, the parts being so dimensioned, that the rocking lever or the arm extending therefrom, respectively, is swung into the path followed by a shell casing when ejected rearwardly after firing.
  • FIG. 1 is a perspective view of a cartridge rammer of an automatic gun having a reciprocating rammer member and a device according to the invention in a preferred embodiment
  • FIG. 2 is a vie of said reciprocating rammer member illustrating the device according to the invention more in detail
  • FIGS. 35 are schematic views illustrating the function of a device according to the invention.
  • FIG. 3 showing components of the device according to the invention during a forward motion of the reciprocating rammer member actuating a cartridge during ramming
  • FIG. 5 showing the same components during the ejection of a casing of a cartridge previously discharged.
  • FIG. 1 the device according to the invention is illustrated in combination with a cartridge rammer comprising a pivotal rammer detent member 1 carried by a reciprocating rammer member arranged as a carriage 2 which is movable back and forth on rollers 3 in guide grooves 4 of a further reciprocating rammer member 8.
  • Rammer member 8 is, in its turn, movable back and forth in guide grooves 6 located in .a gun component 7 which is stationary in relation to gun barrel during ramming.
  • the rammer carriage 2 has a lug 11 which is connected to one part of an endless traction chain running in a loop over pulleys 9 carried by rammer member 8, the other part of the traction chain 10 being secured to a lug 12 attached to the stationary part 7.
  • Carriage 2 and the device according to the invention combined therewith for actuating the rammer detent member 1 are further illustrated in FIG. 2.
  • the rammer detent member 1 is pivotal about a pivot 15 which also carries front rollers 3 of the carriage 2.
  • the rammer detent member 1 constitutes a lever, a front arm 16 of which constituting the rammer detent proper.
  • a spring means 18 is arranged so as to exert a directional force yieldingly forcing the rammer detent into its active position for ramming.
  • the rammer detent member 1 further comprises a second arm 19 which is cooperant with a rammer detent actuating means according to the invention for articulating the rammer detent from an active position thereof for ramming in which position front arm 16 of the rammer detent member 1 is cooperant with a cartridge which lies in a cartridgeguide, not illustrated, extending along the path of motion of the rammer, and into a position in which said front arm 16 of the rammer detent member is swung into an inactive position out of the path of an empty casing ejected backwards through the cartridge-guide after firing.
  • the detent actuating means comprises a cam member secured to a pivot shaft 21 bearing in the carriage framing 17.
  • This cam member 20 has a portion so dimensioned that the cam member, in one position thereof, allows the rammer detent member to occupy its active position for ramming by the arm 19 thereof abutting against an abutment surface 22 of cam member 20 by action of spring 18.
  • Cam member 20 further comprises a cam portion 23 having a radius such that rammer detent member 1 for a rotation of pivot 21 can be brought into its said inactive position by cam 23 actuating the detent member arm 19.
  • Pivot 21 the axis of which extends parallel to the axis of pivot 15 carrying the rammer detent member, has a rocker lever 24 attached to it, the rocker lever 24 and the cam member 20 being rotatable as a unit about the pivot axis.
  • the rocker lever 24 In the position of cam member 26 in which the abutment surface 22 thereof co-operates with lever w of rammer detent member 1 so as to hold the rammer detent portion thereof in active position by action of spring 17, the rocker lever 24 extends backwardly-inwardly relative to the direction of movement of the rammer carriage during ramming.
  • a portion of lever 24 has a length such that a front slide surface 25 thereof is co-operative with an abutment member, a rocker lever actuating lug 29, located aside the path of the rammer carriage during its reciprocating movement.
  • lug 29 constitutes a part of the reciprocating rammer member 8, FIG. 1.
  • FIG. 2 illustrates the location of the rammer detent member 1 and the detent actuating means comprising the cam member 20 and the rocker lever 24 occupied during a forward motion of the carriage 2 as long as the lug 29 does not actuate rocking lever 24.
  • the detent actuating means is held in this position by the arm 19 of rammer detent member 1 abutting against the abutment surface 22 of the cam member 20 by action of spring 18.
  • the lug 29 constituting the abutment member for actuating rocker lever 24 is located on rammer member 8 in a position such that the edge 27 of rocking lever 24 passes past the lug before the rammer carriage 2 has reached its front end position during ramming.
  • the rocker lever 24, and the rammer detent actuating means as a whole with it, returns to the position in relation to carriage 2 occupied prior to the actuation thereof by lug 29 by action of spring 18, and cooperation between abutment surface 22 of the cam member and arm 19 of the rammer detent member 1.
  • FiGS. 3-5 illustrate difierent phases in the lapse of events for bringing over the rammer detent. member be:-
  • FIG. 3 schematically shows the rammer carriage 2 during ramming, moving in the direction indicated by arrow 31 and having arm 16 of the rammer detent member abutting against the bottom of the casing of a cartridge 32.
  • Carriage 2 is shown in a position in which the front slide surface 25 of rocking lever 24 is sliding via lug 29, and at a moment at which the edge 27 the rocking lever contacts the upper surface of the lug and the rocking lever has been tilted a small angle in the direction indicated by arrow 30.
  • Cam member 20 is, however, not actuated to such an extent as to be brought out of catch with the cartridge.
  • edge 27 will slide past lug 29 and return to its previous position illustrated in FIG. 2.
  • FIG. 5 shows an empty casing moving backwardly after ejection in the direction illustrated by arrow 36, taking the rocking lever 24 and the cam member 20 with it, while articulating said two parts in the direction illustrated by arrow 37, the rammer detent member 1 thus returning into its active position for ramming, FIG. 2.
  • a cartridge ramming device for introducing cartridges into the cartridge-chamber of the barrel of a gun, in particular an automatic gun, including a reciprocating cartridge rammer member comprising a rammer detent arranged to 'co-operate with the shell bottom of a cartridge to be ram-med and to move forward and backward between a rear end position and a front end position lengthwise of a cartridge-guide means located rearwardly of the cartridge-chamber of the gun barrel, said rammer detent being pivotally attached to said reciprocating rammer member and pivotal between an active position for co-operation with a cartridge for bringing forward the cartridge during a forward stroke of the rammer member, and an inactive position in which it is swung out of the way of a cartridge moving along said cartridgeguide means, a directional force means being present to yieldingly bring the rammer detent to its active position, said ramming device further comprising a pivotal rammer detent actuating means co-operant with said rammer de
  • the rammer detent actuating means comprises a pivotal member which is co-operative with said cam member and of which a portion in said second position of the rammer detent actuating means extends into the space defined by the path of a cartridge casing moving rearwardly along the cartridge-guide means, said pivotal member being arranged to rotate the cam member to the position thereof in which the detent actuating means is allowed to return from said second position to said first position thereof when said portion of said member is moved rearwardly when actuated by a cartridge casing rearwardly ejected along the cartridge-guide means,
  • a cartridge ramming device constituting an elongated portion of said cam rocking lever, this elongated portion being arranged and dimensioned so as to extend into said space defined by the path of a cartridge casing moving rearwardly along the cartridge-guide means in said second position of the rammer detent actuating means.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Coating Apparatus (AREA)
US414751A 1963-11-28 1964-11-30 Cartridge ramming device for introducing cartridges into the cartridgechamber of the barrel of a gun Expired - Lifetime US3242815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1317263 1963-11-28

Publications (1)

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US3242815A true US3242815A (en) 1966-03-29

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US414751A Expired - Lifetime US3242815A (en) 1963-11-28 1964-11-30 Cartridge ramming device for introducing cartridges into the cartridgechamber of the barrel of a gun

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US (1) US3242815A (de)
AT (1) AT258167B (de)
BE (1) BE656348A (de)
CH (1) CH431330A (de)
DE (1) DE1428652A1 (de)
ES (1) ES306506A1 (de)
GB (1) GB1081014A (de)
NL (1) NL6413852A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5773747A (en) * 1996-05-07 1998-06-30 United Defense, Lp Two-piece ammunition flick ram

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3118383A1 (de) * 1981-05-09 1982-11-25 Rheinmetall GmbH, 4000 Düsseldorf Ladeeinrichtung fuer eine automatische querverschluss-rohrwaffe
US5553699A (en) * 1994-10-06 1996-09-10 Fmc Corp. High cycle rate transfer device
DE102006022622A1 (de) 2006-05-12 2007-11-15 Rheinmetall Waffe Munition Gmbh Funktionssteuerung insbesondere für das lineare Zuführen einer Munition in ein Waffenrohr
CN112844660A (zh) * 2021-01-19 2021-05-28 陈伦箭 一种青椒切粒装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5773747A (en) * 1996-05-07 1998-06-30 United Defense, Lp Two-piece ammunition flick ram

Also Published As

Publication number Publication date
AT258167B (de) 1967-11-10
GB1081014A (en) 1967-08-31
DE1428652A1 (de) 1969-02-20
ES306506A1 (es) 1965-04-01
BE656348A (de) 1965-03-16
NL6413852A (de) 1965-05-31
CH431330A (de) 1967-02-28

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