GB290662A - Device for reducing the rate of fire of automatic firearms - Google Patents
Device for reducing the rate of fire of automatic firearmsInfo
- Publication number
- GB290662A GB290662A GB12963/28A GB1296328A GB290662A GB 290662 A GB290662 A GB 290662A GB 12963/28 A GB12963/28 A GB 12963/28A GB 1296328 A GB1296328 A GB 1296328A GB 290662 A GB290662 A GB 290662A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cam
- escapement wheel
- breech
- block
- firearm
- Prior art date
- 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
Links
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
- F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
- F41A19/03—Shot-velocity control
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Toys (AREA)
- Vibration Dampers (AREA)
Abstract
290,662. S.A.F.A.T. Soc. Anon. Fabbrica Armi-Torino. May 20, 1927, [Convention date]. Machine guns.-Relates to devices comprising a toothed escapement wheel cooperating with an oscillating anchor, for reducing the rate of fire of automatic finearms, and consists mainly in the arrangement in conjunction with the escapement wheel of a diametral cam adapted to be struck eccentrically by a recoiling part of the firearm for rotating the escapement wheel always in the same direction, the provision of means for neturning the cam to the working position after each operation by the recoiling part, a.nd the construction of the device as a whole so that it can be detachably mounted on the firearm, and when detached will leave the firearm free to operate at its normal speed. As shown in Figs. 1 and 2, the escapement wheel 3 and the anchor 4 are mounted on pivots 2, 5 in a casing 1, which is detachably mounted on the frame 10 of the firearm by a bayonet-like joint 1<1>, 9'. A cam 6 projects from the escapement wheel into the path of a lug 13<1> on the striker 13; and a member 7 is slidably mounted on the casing 1 and is pressed against the cam 6 by a spring 8, thereby returning and maintaining the cam in the working position after each operation by the lug 13<1>. The member 7 is moved away from the cam 6 by the breech-block 12 when this block closes the breech. The lug 13<1> then strikes the cam 6, and the anchor escapement retards the firing stroke of the striker 13. When the striken recoils with the breech-block after the firing of a shot, the cam 6 is freed from the projection 13' and moved to the working position by the spring slide 7. Segments 3<x> of the escapement wheel are left without teeth so that this last movement of the cam is unimpeded by the anchor. In a modification, the spring slide 7 is pushed away by the cam itself when this is operated by the lug 13<1>. In another modification, the cam 6 is made up of two bevelled parts spring-mounted on the escapement wheel, to enable the projection 13<1> to operate the cam in one direction and to ride back over it. In a further modification, the cam is connected to the escapement wheel by a free-wheel device allowing transmission of movement in one direction only, and is operated by a shoulder on the breech-block. Two opposing springs control the cam and restore it to its normal position when freed by the shoulder of the breech-block.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT290662X | 1927-05-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB290662A true GB290662A (en) | 1928-10-11 |
Family
ID=11226076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12963/28A Expired GB290662A (en) | 1927-05-20 | 1928-05-02 | Device for reducing the rate of fire of automatic firearms |
Country Status (4)
Country | Link |
---|---|
US (1) | US1771132A (en) |
DE (1) | DE518076C (en) |
FR (1) | FR654448A (en) |
GB (1) | GB290662A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3039365A (en) * | 1960-03-11 | 1962-06-19 | Aircraft Armaments Inc | Time delay mechanism for machine gun |
-
1928
- 1928-05-02 GB GB12963/28A patent/GB290662A/en not_active Expired
- 1928-05-14 US US277701A patent/US1771132A/en not_active Expired - Lifetime
- 1928-05-19 FR FR654448D patent/FR654448A/en not_active Expired
- 1928-05-20 DE DES85600D patent/DE518076C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE518076C (en) | 1931-02-12 |
FR654448A (en) | 1929-04-05 |
US1771132A (en) | 1930-07-22 |
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