US2817172A - Barrel lock for rifles - Google Patents

Description

Dec. 24, 1957 GA. LEHMAN BARREL LOCK FOR RIFLES Filed Feb. 6, 1956 m l I u INVENOR. '14. Lehman fiearge ATTORNEY- BARREL LOCK FOR RIFLES George A. Lehman, Bellevue, Wash.

Application February 6, 1956, Serial No. 563,564

1 Claim. (Cl. 42-1) This invention relates to new and useful improvements in firearms and firearm accessories.

More particularly, the present invention proposes the construction of an improved barrel lock for rifles which can be used easily and safely on the muzzle end of a rifle to stop a bullet on accidental discharge of the piece.

As a further object, the present invention proposes forming the barrel lock with a cam locking lever having a sight opening and adapted to secure the lock on a rifle over the front sight without damaging the front sight.

Still another object of the invention proposes constructing the device with a locking extension and a lock member which will hold the device securely on a rifle barrel and make it impossible to remove without the use of a special key.

Another object of the invention proposes forming the device with removable bullet stopping packing and spaced gas exhaust port openings so that the rifle on which the device is locked can be fired without harm or release of the bullet and so that the device can be used any number of times merely by replacing the inexpensive packing.

It is another object of the invention to provide a device simple in construction which will perform safely to prevent death, injury or property damage from careless handling of a rifle and accidental discharge.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a side view of a rifle and a barrel type lock constructed and arranged in accordance with the present invention.

Fig. 2 is an enlarged side view of the barrel lock with parts broken away and in section.

Fig. 3 is a sectional view taken on line 33 of Fig. 2.

Fig. 4 is a sectional view taken on line 44 of Fig. 2.

Fig. 5 is a side view of the barrel lock with the cam locking lever raised and with a key shown, partly broken away, in the lock.

Referring more particularly to the drawings, the barrel type lock in accordance with the present invention has a body 15 which preferably is cylindrical and made of steel or other metal which may be non-rusting or rust resistant treated.

Body 15 has an open rear end 16, a closed front end 17, and a cylindrical bore 18 which extends from the open end 16 to the closed end 17. A tubular locking extension 19 on the body 15 adjacent the closed end 17 has a longitudinal axis substantially perpendicular or perpendicular to the longitudinal axis of the body 15. Inside the locking extension 19 is a locking chamber 20 which extends through the extension 19 into the bore 18 of body 15.

Body 15 also has a clamping lever opening 21 between the open end 16 and the locking extension 19 and spaced 2,817,172 Patented Dec. 24, 1957 16 of the body. Lever 24 has another end 27 with a sight receiving opening 28 adapted to be disposed in the clamping lever opening 21 of the body adjacent the locking extension 19. The sight opening 28 is adapted to fit around the front sight 29 of a rifle 30. The lever has a transverse slot 31 in its free end.

A key-operated locking barrel member 32 of a conventional pin and tumbler type lock assembly is rotatably mounted in the chamber of the locking extension 19. A bar 33 extends outwardly of the inner end of the barrel and then protrudes laterally in the bore 18 of the body 15. When the barrel member 32 is turned by its key, the bar 33 is adapted to be swung into the slotted free end 31 of the lever 24 and lock the lever in locking position as shown in solid lines in Fig. 2.

Inside the cylindrical bore 18 of body 15 are spaced rifle barrel spacing members 34, 35 and 36 disposed 1ongitudinally and adapted to hold the muzzle end 37 of rifle spaced from the inner side walls of the cylindrical bore 18.

Looking lever 24 has a rifle barrel holding cam extension 38 adapted to abut and frictionally hold a rifle barrel 37 in the bore 18 of the body 15 between the rifle barrel spacing members 34, and 36 and the barrel holding cam extension 38 on the locking lever.

Rifle barrel end stop members or pins 39 and 40 are disposed in the bore 18 of body 15 to limit the inward movement and hold the muzzle of rifle 30 spaced from the packing 23 in the bore 18 and from the gas exhaust ports 22.

A pin 41 is slidably mounted in a radial opening in the extension 19 adjacent its upper end. The pin is adapted to be slid into an aligned slot 43 formed in the locking barrel 32 to interlock the barrel and extension 19 thereby preventing relative rotation of the parts. A pivoted bar or key 42 is adapted to engage the pin 41 and move it outwardly to nonlocking position as shown in Fig. 5. When the pin is in this position, a key inserted into the barrel 32 will rotate the barrel with its bar 33 releasing the lever 24 to permit it to be swung to unlocked position as shown in Fig. 5. By reason of this arrangement, an unauthorized person without a key cannot release the lever 24 for removal of the device off the barrel of the rifle.

When the lock 15 is mounted on the end of the muzzle end 37 of the rifle 30, it is held against displacement when a bullet is fired by means of the sight 29 engaging the inner wall of the slot 28 of the lever 24 and by means of the clamping action of the extension 38.

While I have illustrated and described the preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and that various changes and modifications may be made within the scope of the invention as defined in the appended claim.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent A barrel type lock for rifles comprising a body having an open end, a closed end and a cylindrical bore from the open to the closed end, a locking extension on the body adjacent the closed end and having a longitudinal axis substantially perpendicular to the longitudinal axis of the body, said locking extension having a locking chamber extending therethrough, said body having a clamping lever slot opening between the open end and the locking extension and spaced exhaustport openings adjacent the closed end, bullet stoppingpacking removably mounted in the bore of the body at. the closed end of the body, a clamping lever pivotally secured at one end to the body adjacent the open end of the body, saidlever having another end witha sight receiving opening, said lever being normally. disposed in. the clamping lever slot. opening of the body, a clamping lever lock member in the locking chamber of. the locking extension removably to hold the clamping lever in rifle barrel clamping position in the,

clamping lever slot. opening of the. body, said clampingv lever lock member having, a, lateral end. bar and. said clamping lever. havinga bar slot opening Slidably to receive the free end of said, b.ar, said lock. member being rotatably mounted in the locking chamber, a locking pin in the locking extension removably to hold the. clamping lever lock member and locking extension in interlocking relationship, rifle barrel. endi stop members in the bore to hold the muzzle of a rifie spaced from the packing in the cylindrical bore of the body, spaced rifle barrel spacing members in the cylindrical bore of the body to hold a rifle barrel spaced from the inner side walls of the cylindrical bore, and a rifle barrel holding cam extension on the locking lever to abut and bear against a rifle barrel in the bore of the body to hold the barrel between the rifle barrel spacing members and the barrel holding cam extension on the locking lever.

References Cited in the file of this patent UNITED STATES PATENTS

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