US562286A - deng-o - Google Patents

Description

3 Sheets-Sheet 3.

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. in position for extracting the shell.

UNITED STATES PATENT OFFICE.

MANUEL vIcTOR DENGO, OF SAN JosE, COSTA RICA.

BREECH-LOADING FIREARM.

SPECIFICATION forming part of Letters Patent No. 562,286,11ated .1 une 16, 1896.

Application filed November 15, 1895. Serial No. 569,064. (No model.)

To all whom it may concern.-

Beit known thatLMANUEL VICTOR DENGO', of San J os, Costa Rica, Central America, have invented a new and Improved Breech-Loading Firearm, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved breech-loading firearm, which is simple and durable in construction, easily manipulated, arranged to securely hold the breech-block in position when firing, and to readily extract the shell.

The invention consists principally of a breech-block controlled during part of its closing movement by the hammer and the remainder by a spring, so as to seat the breechblock in advance of the hammer.

The invention also consists of certain parts and details and combinations of the same, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of the improvement. Fig. 2 is a longitudinal section taken through the breech mechanism of the firearm, the operative parts of the device being shown in elevation. Fig. 3 is a like view of the same with the parts in position after firing. Fig. l is a similar view of the same with the parts Fig. 5 is a like view-of the same with the hammer in a safety position. Fig. 6 is a plan view of the link and push-bar. Fig. 7 is a plan view of the ejector. Fig. 8 is a side view of the breech-block detached, and Fig. 9 is a front end view thereof. Fig.10 is a side elevation of the hammer, and Fig. 11 is a front end elevation of the same.

The improved firearm is provided with a SllltflblY-COllStl'llCtOd stock A, on which is semred the barrel B, adapted to be closed at its veech end by a breech-block C, fulcrumed G in the stock A. 'lhebreeeh-block C car- -s the usual firing-pin D, adapted to be ac- .ated by a hammer E, f ulcrumed at E in the ock A and pressed on by the 'usual main- .a'ing F, said firing-pin being, notched, as ,n 111 dotted lines in the drawings, and havits notch engagedbya screw or pinonthe breech-block C, so as to be held in plac in the breech-block.

The hammer E is providedwith an extension E formed with a shoulder E and a notch E adapted to be engaged by the sear G, formed integrally with the trigger G, likewise pivoted in the stock A and extending with its fingerpiece into the trigger-guard, as indicated in the drawin gs, said trigger being provided with- On the pivoted end of the breech-bdock is formed a shoulder 0 adapted to be engaged by the free end of a spring J, mounted in the stock A, and serving to draw the breechblock 0 quickly to a seated position on the breech end of the barrel B, when the firingpin is about to be operated by the hammer. As clearly shown in the drawings, the point at which the link I is pivoted to the hammer is a greater distance from the fulcrum E of the hammer than the distance from the pi votpoint of the link on the breech-block from the pivot-point C of the breech-block. By this arrangement the breech-block is caused to travel in advance of the hammer, since it will move faster than the hammer, and the spring J is so arranged as to engage the shoulder 0 on the breech-block just before the breech-block seats itself on the barrel, whereby said spring will impart to the moving breech-block a still greater velocity, this being permitted by the loose connection between the link I and the breech-block. The slotted connection between the link and the breech-block permits the hammer to move a certain distanceafter'the breech-block has been seated on the barrel, so as to permit said hammer to operate the firing-pin.

The link I is pivotally connected with a push-bar K, extending forwardly, and pro- IOO vided at its free end with an upwardly-extending spur-or lug K, adapted to engage a notch L in the ejector-rod L, pressed by a spring N, and fitted to slide longitudinally in the stock A. The rearward-sliding motion of the ejector-rod L is limited by a stop-collar L as is plainly shown in the drawings. The forward end of the ejector-rod L is adapted to engage an ejector 0, arranged to Y pin held in the stock and engaging a slot or recess 0 in one side of the ejector O.

In the ejector-rod L is formed a second notch L adapted to be engaged by the free hook end of a springdog P, held in the stock. The ejector-rod is prevented from turning by a screw J, engaging a longitudinal recess in the said ejector-rod, said screw also serving to fasten the spring J in place in the stock. The hook end of the spring-dog P is adapted to be engaged by a lug K held on the free end of the push-bar K, to move said springdog out of engagement with the notch L whenever the bar K is depressed, as will be hereinafter explained, to release said ejectorrod and to move the ejector O outward to withdraw the shell from the barrel.

The free end of the push-bar K is provided with a lug K adapted to engage a fixed inclined arm R, held within the stock A, so that said push-bar K is moved out of contact at its end K with the notch L whenever the hammer-E is drawn into its rearmost position, as shown in Fig. 4. A spring S is seeuredin place in the stock A under the said arm R, and the spring S engages the under side of the push-bar K, to normally press the end K in engagement with the under side of the ejector-rod L, to cause the free end K to snap into the notch L whenever the two are in register. A spring T, held in the top of the barrel B, engages with its free end the top of the cartridge, so as to'prevent the latter from accidentally falling out in case the barrel B is pointed upward.

The operation is as follows: When the several parts are in the position illustrated in Fig. 2, then the ejector O and the ejectorrod L are in an innermost. position, and the hammer E, with the breech-block C, is in an outermost position to permit of introducing the cartridge into the barrel. lVhen this has been done, the firearm can be fired by merely pulling the trigger G, without first closing the breech, this action serving to release the hammer E, which, by the mainspring F, is now caused to swing forward; and by means of its connection with the link I imparting a swinging motion in a forward direction to the breech-block O, and the latter consequently moveswith the hammer E but slightly in advance of the same, until its shoulder 0* passes into engagement with the free end of the spring J, so that the latter presses on said shoulder C and causes a quick seating of the breech-block C on the breech end of the barrel. This movement of the breech-block C is more rapid than the movement of the hammer E and said movement of the breech-block is possible, owing to the slot I in the double link I. Thus, it will be seen that the breechblock 0 moves with the hammer E during part of the closing stroke, and during the remainder or final seating movement the breechblock moves more rapidly than the hammer, owing to the action of the spring J. As the hammer E finally comes into contact with the breech-block, it strikes the firingspin D, to fire the cartridge in the usual manner.

In order to extract the shell from the barrel, the hammer E is ,drawn back, and acts to draw back the breech-block C by the action of the link I, and the latter, by moving the push-bar K forward, engages the latter with the notch L- to push the ejector-rod L forward and compress'the spring N, (see Fig. 2,) and at the same time the forward notch L of the ejector-rod L is disengaged from the I spring-dog P. See Fig. 2.) \Vhen the hammer E moves into a lowermost position, then the lug K strikes the inclined arm R, so that the bar K is pushed downward, and the end K moves out of engagement with the notch L, to release the ejector-rod L, the dog P be-' ing meantime held out'of operative position by the lug K so that the said rod L is pushed rearwardly by the action of its compressed spring N, and this movement of the rod L causes the ejector O to be pushed rearwardly, to push the shell out of the breech end of the barrel. (See Fig. 4..)

After the shell has been ejected, the hammer E is set in a firing position or at full-cock, as shown in Fig. 2, it being understood that the trigger G then engages by its sear G the shoulder E on the tumbler E The operator now takes a new cartridge, pushes the same in the breech end and upon the ejector 0,

and then pushes the cartridge with the ejector, or he may pushthe ejector home and: then insertacartridge. (See Fig. 2.) \Vhen the cartridge is inserted, the hammer is let down to a safety position, or at half-cock, the sear then engaging the notch E in the tunibler, by pressing lightly on thejtrigger.

"When it is desiredto fire again, the opera,

tor draws the hammer E into the firing posi..

tion, and in doing so causes the breech-block C to swing with it into a rearmost position, and at the same time the. bar K pushes the ejector-rod L into the position shown in Fig. 2 to compress the spring N. The above operation is then repcate The hammer Eis formed with a shoulder E adapted to pass under the rear end of the breech-block C to positively lock the latter in place at the time the hammer strikes the .iiring-pin D, and the firin g takes place, whereby recoil of the breech-block is entirely prevented. (See Fig. 3.) v I j v Now, it will be seen that by the arrangement described, the firearm can be very readily ma n ipulated, insures a positive ejection of lb:

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shell after firing,'and insures a seating of the breech-block on the breech end of the barrel before the hammer strikes the firing-pin.

Having thus fully described myinvention, I claim as new and desire to secure by Letters Patent- 1. In a firearm, the combination of a pivoted breech-block, a pivoted hammer, and a link pivotally connected to the hammer and to the breech-block, said link having its pivotal connection with the hammer a greater distance from the pivot whereon the hammer swings than its pivotal connection with the breech-block is distant from the pivot whereon the breech-block swings, substantially as set forth.

2. In a firearm, the combination of a pivoted breech-block having a shoulder, a pivoted hammer, a link pivotally connected to thehammer and to the breech-block, said link having its pivotal connection with the hammer a greater distance from the pivot whereon the hammer swings than its pivotal connection with the breech-block is distant from the pivot whereon the breech-block swings, said link having a loosevconnection with the breech-block whereby the hammer is permitted to move independently of the breechblock after the latter is seated, a firing-pin carried by the breech-block, and a spring arranged when the breech-block is'moved, to engage the shoulder thereon and hold the breech-block against the breeclnsubstantially as set forth.

3. In a firearm, the combination of a pivoted breech-block, a pivoted hammer, a scar, a extension on the hammer forming a tumbler and having notches to be engaged by the sear, pins projecting from opposite sides of the breech-block at the lower end thereof, and a double link having its sides pivoted at their rear ends to opposite sides of the tumbler, and having their respective forward ends slotted to receive pins projecting from opposite sides of the breech-block, substantially as set forth.

4. In a firearm, the combination of a barrel, a breech-block, a pivoted hammer, a sliding ejector, a spring connected to said ejector, and means actuated by the movement of the hammer for placing said spring under tension, means to release said spring when the hammer is raised, whereby the ejector is actuated to throw the discharged shell from the barrel, substantially as set forth.

5. In a firearm, the combination of a barrel, a breech-block, a pivoted hammer, an ejector, a spring operatively connected to said ejector, means actuated by the movement of the hammer for placing said spring under tension, a dog to hold the spring under tension, and means actuated by the raising of the hammerto disengage said dog and permit said spring to operate the ejectorto throw the shell from the barrel, substantially as set forth.

6. In a firearm, the combination of a barrel, a breech-block, a pivoted hammer, an

ejector, an ejector-rod operatively connected to the ejector, a spring connected to the ejector-rod and adapted to actuate the same, and means actuated by the movement of the hammer for first moving said ejector-rod to place said spring under tension and then releasing said ejector-rod to permit said spring to actuate the same, substantially as set forth.

7. In a firearm, the combination of a barrel, a breech-block, a pivoted hammer, an

ejector, an ejector-rod operatively connected ejector-rod, a push-bar connected to the hammer and arranged when the hammer is moved to engage said ejector-rod and move the same to compress the spring, a dog arranged to engage said ejector-rod to hold the spring under tension, and means for disengaging said pushbar and dog from the ejector-rod, substantially as set forth.

. 9. In a firearm, the combination of a barrel, a breech-block, a pivoted hammer, an ejector, an ejector-rod operatively connected to the ejector, a spring connected to the ejector-rod, a push-bar connected to the hammer and adapted when the hammer is moved to engage the ejector-rod and move the same to compress said spring, a dog arranged to engage the ejector-rod to hold said spring under tension, means for disengaging the push-bar from the ejector-rod as the hammer is raised, and means actuated by the movement of said push-bar for disengaging the dog from the ejector-rod, substantially as set forth.

10. In a firearm, the combination of a stock, a barrel, a breech-block, a pivoted hammer, an ejector, an ejector-rod operatively connected to the ejector, a spring connected to the ejector-rod, a push-bar connected to the hammer and arranged when the hammer is moved to engage the ejector-rod and move the same to place said spring under tension, a dog arranged to engage the ejector-rod to hold the spring under tension, a lug on the stock arranged when the push-bar reaches the end of its stroke to draw said push-bar out-of engagement with the ejector-rod, and a lug on the push-bar arranged to engage said dog, and move the same out of engagement with the ej ector-rod, substantially as set forth.

11. In a firearm, the combination of a stock, a barrel, a breech-block, a pivoted hammer, an ejector, a notched ejector-rod operatively connected to the ejector, a spring connected to the ejector-rod, a linkpivotally connecting the hammer and breech-block, a push-bar pivarranged to engage said push-bar to hold the same normally engaged with the notch in the ejector-rod, said pusll-bar-being arranged when the hammer is moved to engage said ejector-rod and move the same to compress the spring connected therewith; a dog arranged to engage one of the notches in the ejector-rod to hold the spring connected with the ejector-rod under tension, a lug on the stock arranged to engage said push-bar, to move the same out of engagement with the ejector-rod, and a lug on the push-bar arranged to engage said dog to move the same out of engagement With the ejector-rod, substantially as set forth.

12. In a firearm, the combination of a barrel, a breech-block, an ejector, an ejector-rod operatively connected to the ejector and having a longitudinal slot, means for operating said ejector a spring operatively connected to the breech-block, a stock, and a screw for holding said spring to the stock, said screw having engagement with the slot in the ejector, substantially as set forth.

MANUEL VICTOR DENGO;

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