US1805383A

US1805383A - Automatic pistol

Info

Publication number: US1805383A
Application number: US360130A
Authority: US
Inventors: Thiry Leon
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-05-07
Filing date: 1929-05-03
Publication date: 1931-05-12
Anticipated expiration: 1948-05-12
Also published as: FR674623A; BE360326A

Description

Patented Ma 12, 1931 PATENT LEON THIRY, on nanssnns, BELGIUM auron'm'rrc rrsron Application filed Kay 3, 1929, Serial No. 860,130, and in Germany flay 7, 1928.

When use is made of an automatic firearm it frequently happens that the magazine is withdrawn while a cartridge is still engaged in the barrel. If the magazine is then '5 replaced even while it is still empty,- the operator runs the risk of being unaware of or having forgotten the existence of a cartridge yivlgh may be in the barrel and ready to be The object of the invention is to remove this disadvantage.

, For this purpose, according to the invention, if a cartridge is in the barrel at the moment when the magazine is inserted, the relative movement produced between the magazine and its lodgment is employed for putting the weapon in a position of safety.v

It goes without saying that if the firearm isi already in a condition of safety the insertion of the ma azine at this moment will simply leave the rearm in this condition. The existence of this previous condition ofrsafety may result, in a mechanism putting the firearm in a condition of safety, by the withdrawal or absence of the magazine or by any other mechanism.

The invention also provides for the fact that when the magazine has been withdrawn from its lodgment while a cartridge is in the barrel, a member projecting into the magazine lodgment prevents the latter from being put back into place as lon as the said cartridge remains in the barre The invention can obviously be carried into efiect in a great number of ways.

The accompanying drawings illustrate simplyby way of example and in a nonlimitin manner some forms of construction. 4o 7 .these drawings:

arrangement by means of which the firearm is put into a condition of safety by the insertion of the magazine if a cartridge is the barrel.

T Figure 2 shows another arrangement prolong as a cartridge is in the barrel.

0 In the case shown in Figure 1, the various Figure -1 is adiagrammatic view of anparts occupy the position shown in the drawing when the magazine is withdrawn.

When the magazine is again inserted the lever 3 pivoted at 3p upon the frame of the firearm and the end 3f of which projects into the lodgment of the magazine, will be displaced in thedirection of the arrow X. This displacement will produce the displacement of the member 5. This member rests upon the part 31a of the chamber 31 capable of uttmg the firearm in a condition of safety y the fact that it places itself in the notch 7a of the trigger 7 pivoted at 7 p. The safety member 31 is held in one or the other of its positions by a'spring 317' acting upon two ats provided upon the said member 31 which is pivoted at 31;). The member 5 is provided with a projection 5b which cooperates with the head 66 of a member 6 one part 6a of which is adapted to penetrate into the chamber of the barrel when there is no cartridge in the latter. This member 6 is constantly urged by the spring 6r in a direction such that the member 60, does not occupy the chamber of the barrel. The relative tensions of the 5 rings 61- and 311' are such that, as a result 0 the movement produced by the displacement of the member 5, the spring 61' will be adapted to yieldbefore the spring 31r permits the displacement of the safety member 31. Conseqfilently, if there is no cartridge in the barrel, t e pro ection 56 of the member 5 will move the head 66 of the member 6 by the cooperation of the inclines with which the contacting arts are provided and the proection 5b Wlll place itself behind thehead 6b.

unn have simply slide along the part 31a of the safety member 31 without moving the latter. On the contrary, if a cartridge is situated in the chamber of the barrel 2k the member 6 will not be able to yield to the action it undergoes as a result of the cooperation of the inclines on the projection 56 and on its head 66 so that the member 5, in order to answer to the pressure it under oes'on the part of the lever 3 moves in the irection of the arrow X when the ma azine is inserted, will have to slide along t e incline on the head 6b of the memher 6 while moving the lever 31 in the directhis movement, the member 5 will move when the firearm is cooked. The lever 3 is constantly urged to engage in the lodgment for the magazine by means of a spring 37' the tension of which is suflicient to move the member 6 against the action of its return spring 61-. I

As shown in Fig. 1, the projection 51) may if desired be formed by a finger pivoted at 5?) upon the member 5 and adapted to be disenfiaged under the action of a spring 5b-'.

y means of this arrangement, when the lever 3 moves in an opposite direction to that of the arrow X, as occurs when the magazine is removed, the member 5 will be able to move without producing the displacementof the safet member '31 if the tension of the spring 5b" 1s such that this spring becomes compressed before the spring 317" permits the displacement of the safety member 31.

In the case shown in Figure 2, the safety member 31 pivoted at 31; is adapted to act by means of its face 3172, upon the trigger so as to put the firearm in a condition of safety. In this member moves a slide block 3; which projects into the magazine lodgment against the opposing action of its return spring 37" when the end Gla'of the lever 6, the end 6a of which is adapted to engage in the chamber of the barrel, acts upon the part 3f of this member 3 This action is produced as soon as a cartridgeis engaged in the chamber of the barrel 2k.

Nevertheless,-if at this moment the magazine is in its lodgment, the member 3f abuts against this magazine and it cannot yield to the pressure exerted by the member 6. In order to permit the part 60. of this member to be withdrawn however, one of the arms such for example as the arm 692 which this member 6 comprises, is formed of an elastic material. The tension given to this arm is such that if the magazine is not in its lodgment the spring'3f" will be compressed before this arm yields. 4

When the magazine is placed in position if a cartridge is in the barrel, the end 3f 'which projects mto the magazine lodgment is carried along in the direction of the arrow X thus placing the member 31in the safety position. The safety device is disengaged by means of one of the members which move when the pistol shown in Figure 2 is cooked. For this purpose the movable breech is provided with .a projection not shown in the drawings, adapted to. abut against the arm 311d carried 'by 'themember 31 in sucha way as to move this arm in this member in the opposite direction to that of the arrow X. The projection provided upon the movable breech will however be situated at such a distance that before it comes into contact with the above mentioned arm 31, the cartridge which was situated in the chamber of the barrel will have been extracted by the normal movement of the usual extractor so that the member 3f will have been able to withdraw. completely in the interior of the member 31 so as to permit the rotation of the latter in the opposite direction to that of the arrow X in spite of the presence of the magazine in its lodgment. In the case shown in F i. 3, the sear 4 is put in a condition of safety by a stop 37:. which becomes placed beneath an incline ip on the sear. This stop 37:. is made rigid with a member 3 pivoting at 3p upon the frame and moved when the magazine 2m is withdrawn into its operative locking position by a spring 31'.

This member 3 is controlled in its locking position as a function of the presence of a cartridge in the barrel 210 of the firearm. This control is obtained by means of a lever 6 pivoted at 6p upon the frame and one of the arms 6a of which penetrates into the barrel while the other arm 6?) penetrates into a suitable notch formed in a slide block 6k urged out of its lodgment by a spring 61' bearing upon the end of the above mentioned lodgment formed in the frame. The locking of the safety device by the said lever is obtained by forming in the member 3 a notch 3m in which engages the above mentioned slide block 670. When the member 3 is moved into the position for which it puts the sear in a condition of safety, this member 3 will be locked as long as there is a cartridge-in the barrel 270.

In order to withdraw this cartridge it will be sufficient to act in the usual manner upon the slide 2g of the firearm. When this operation has been eifected the arm 6a, will penetrate into the chamber of the barrel and the I arm 6] will push the slide block 6 Ir: to the end of its lodgment and this slide block will thus release the member 3 which may be brought into its initial inoperative position by one of Q the means described above.

It is to be noted that the magazine 2m can not be put back in place as long as a cartridge remains in the barrel. In fact, in order to takeup its place again the magazine must push before it the end 3; of the member 3 I trol device, constructed in such a way as to cause the firearm to be put in a' condition of safetywhen the magazine is removed and for this to be "done in such a way that the sub- .as specified above to be combined with a con- 1 sequent insertion of the magazine leaves the 1 a Cartridge is at firearm in a condition of safety if it is already in such a condition.

By lockin the finger forming the projection 5?) in tie form of construction shown in Figure 1, in such a way as to prevent it swinging about the pivot 5b, a firearm will be obtained which will be ut in a condition of safety whenvthe magazine is removed. if

this moment in the barrel. It goes without saying that when the magazine is again inserted it will not afiect this condition of safety. What I claim is:

1. Automatic weapon com risin an element having a portion capa le 0 pr0jecting into the seat of the magazine so as to be displaced by the magazine u on its introduction into the said seat, a sa ety device for the weapon controlled by this element, an element one part of which is withdrawn beyond the chamber of the gun when the latter contains a cartridge, and means providing a connection between this element and the said element, so that the replacin of the weapon in condition for firing by t e reintroduction of the magazine into its seat would be impossible as long as a cartridge still remains in the chamber of the gun.

' these portions into the 0 ing urge 2. Automatic weapon comprising an element having a portion capable of pro'ecting into the seat of the magazine so as to be dis-. placed by the magazine upon its introduction into the said seat, a sa ety arrangement for the weapon controlled by this element, an element, whereof a ortion is extended be yond the chamberof t e when the latter contains a cartrid e, an a member which positively places t e safety arrangement in its safety position when this member en a es upon said element, which by reason 0 t is engagement is urged to enetrate by one of amber of'the gun, this penetrationnot having taken place and the placin in safety position being effectively pro uced if the magazine is returned into position, and then that a cartridge is again placed into the chamber of the gun.

3. Automatic weapon comprising an element having a portion capable of projecting into the seat of the magazine so as to be displaced by the magazine upon'its introduction into the said seat, a safety device for the weapon controlled b this element, an element, a portion of which is extended beyond the chamber of the when the latter does not contain a cartridge and a member which positively places the safety arran ement into the safety position when it is isplaced by the returning of the magazine to position, the above named ortion capable or? projectin into the seat 01': the magazine beby a return spring to not project into the seat of the magazine, this prejee tion not takin place except when this por tion is pushe by another portion of the said element, a portion of which is fed beyond thechamber of the gun when the latter contains a cartridge.

4. Automatic weapon according to claim 3 in which the safet lever has an element capable of being i uenced at the moment of cooking by an element of the cooking mechanism, so as to provide the freeing of the detent previously obstructed.

5. Automatic weapon comprising a safety arrangement placed in its safety position by the withdrawal of the magazine by means of signature.

LEON THIRY.

the penetration of an element into the seat of I for obstructing this a