US843231A

US843231A - Automatic extractor for detonating cartridges in breech-loading guns.

Info

Publication number: US843231A
Application number: US31979806A
Authority: US
Inventors: Emil Olsson
Original assignee: Individual
Current assignee: Individual
Priority date: 1906-06-01
Filing date: 1906-06-01
Publication date: 1907-02-05
Anticipated expiration: 1924-02-05

Description

No. 848,231. PATENTED FEB. 5, 1907. E. OLSSON. AUTOMATIC EXTRACTOR FOR DETONATING CARTRIDGE IN BREBGH LOADING GUNS.

APPLICATION FILED mm: 1. 19oe.

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EMIL OLSSON, OF BO FORSI SWEDEN.

AUTOMATIC EXTRACTOR FOR DETONATING CARTRIDGES IN BREECH-LOADING GUNS.

Specification of Letters Patent.

Patented Feb. 5, 1907.

Application filed Tune 1, 1906- Serial No. 319,798.

To all whmn it may concern:

lever 2 in toward the guide 8, but also to push Be it known that I, EMIL OLssoN, engineer, the said lever forward in a direction against a subject of Sweden, residing at Bofors, in the county of Nora, Kingdom of Sweden, have invented new and useful Improvements in opening of the breech mechanism on the dis- Automatic Extractors for the Detonating charge of the gun the slide 1 will be shifted Cartridges in Breech-Loading Guns, of which in the guide 8 from the position shown in the axis of the gun.

The extractor operates as follows: In the Fig. 2 to that shown in Fig. 1, in this movement carrying with it the lever 2, so that the operating extractor for the detonating car- 2 branches 12 of the latterwill bewedged in intridges in breech-loading guns.

side of the rim of the detonating cartridge 16 This extractor is illustrated in the accomand release the said cartridge with great force.

panying drawings in connection with the rear portion of the barrel of the gun in two WVhen the lug 14 of the lever in the continued movement strikes the check-bolt 5,

different positions in longitudinal section in i the arm 2 will be forced to turn on the shaft Figures 1 and 2, while Fig. 3 shows the same, together with the ad oining portion of the barrel, viewed from behind.

3, and as a result the lug will be freed from the bolt and the detonating cartridge be extracted and ejected. hen the breech is The extractor consists of a lever 2, one end fully open, the lever will occupy the position of which is slidably journaled on a shaft 3, secured to a slide 1, which can be shifted radij ally in relation to the barrel of the gun in a guide 8 on the rear surface of the breechscrew 10. The lever 2 is held by a spring 4 1n such a position in relation to the shaft 3 that allel wedge-shaped branches or jaws 12, the inner edges ol which are shaped to conform i to the rim of the detonatingcartridge. The branch or jaw adjoining the check-bolt 5 (the lower branch) is provided with a lug 11, bear ing on the checlebolt 5 when the breech is j sume the positlon shown 1n Figs. 2 and 3.

closed, Fig. Between the branches 12 there is on the lever 2 a lug or projection 13, pointing toward the axis of the gun, and on the other side of the axis of rotation of the lever is a rearwardly-pointing lug 14, which strikes against the check-bolt 5 when the extractor is carried inward from the position shown in Fig. 2 to that shown in Fig. 1. The aperture in the lever 2, embracing the shaft 3, is oblong, so that the lever can be shifted slightly in its longitudinal direction on the shaft. The spring 4 with its inner end is inserted into a groove on the shaft 3, which cannot be rotated in the slide, and with its outer end into a slot in the lever 2, so that it strives not only to swing the branches of the cartridge sliding on the oblique surface of the lug or projection 13; but after the rim has passed this lug and struck the branches 12 the lever will be forced back into its former position by the spring 4, so that the lug 13 places itself behind the cartridge-rim and prevents the ejection of the cartridge by the air-pressure produced in the closing of the breech, Fig. 1. hen the breech is closed and the breech-screw is being turned, the slide 1 will be returned, carrying with it the lever 2, so that the check-bolt 5will be forced in by the lug 14 as the latter is passing the oblique surface of the bolt, the bolt being subsequently pushed forward once more by its spring. The lever will then as Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. An automatic extractor for cartridges in breech-loading guns, comprising a springactuated lever, a slide, a shaft carried by said slide, said lever being rotatably and shiftably mounted on the shaft, said lever having two jaws narrowing toward their ends and adapted when shifted in one direction to enter inside of the rim of the cartridge, a lug 14 on said lever being its fulcrum and a check-bolt adapted to engage with the said lug to swing the lever to eject the cartridge.

2. An automatic extractor for breechextractor is moved slightly aside to be subloading guns, comprising a slide movable diametrically in the rear plane of the breechscrew, a shaft carried by said slide, a lever rotatably and shiftably mounted on said shaft, a spring controlling the rotatable movement of said lever, two jaws on said lever, a lug 14 on said lever to the rear of its fulcrum, "a check-bolt adapted to engage .with said lug and a projection 13 on said lever said projections extending parallel to aXis of the gun and on which the rim of the cartridge :presseswhen inserted so that the sequently returned by the spring after the rim has passed the projection, thus bringing the projection behind the cartridge and preventing its ejection by the air-pressure in the closing of the breech.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

EMIL OLSSON.

Witnesses:

KARL A. RPSVANBERG, VICTOR -HAMMAR.