US3803741A - Safety device for a cylinder revolver - Google Patents
Safety device for a cylinder revolver Download PDFInfo
- Publication number
- US3803741A US3803741A US00320766A US32076673A US3803741A US 3803741 A US3803741 A US 3803741A US 00320766 A US00320766 A US 00320766A US 32076673 A US32076673 A US 32076673A US 3803741 A US3803741 A US 3803741A
- Authority
- US
- United States
- Prior art keywords
- hammer
- pin
- safety
- cylinder
- revolver
- 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 - Lifetime
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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
- F41A17/00—Safety arrangements, e.g. safeties
- F41A17/74—Hammer safeties, i.e. means for preventing the hammer from hitting the cartridge or the firing pin
Definitions
- ABSTRACT [30] Foreign Application Priority Data June 27, 1972 Switzerland 9654/72 A Safety device for a revolver wherein the Cylinder is mounted on a pin which is selectably movable along 52 0.5. CI. 42/66 its axis from a first fixed position at which the p is s 1 Int. Cl F41c 17/04, F4lc 1/00 free of engagement with the m r to a on fixe 581 Field of Search 42/66, 65, 59 position at Whieh the p engages the hammer to P vent it from reaching the firing position.
- the invention relates to a safety for a cylinder revolver having a hammer.
- the purpose of the invention is to provide for a cylinder revolver having a hammer, a safety which restricts the movement of the hammer and which can be utilized independently of the usual safeties and which is simpler than the known safeties as far as construction and handling are concerned.
- the principle of the invention is that the axis pin of the cylinder is formed in such a way as to act as a safety pin.
- the cylinder axis pin is provided with two annular grooves.
- the axis pin is mounted so as to be axially movable, except when restricted in its movement by a latch pin mounted laterally with respect to the revolver frame.
- the latch pin is held in position by a coiled spring arrangement which maintains the latch pin in a position which engages either the first or the second annular groove of the axis pin, thus restricting axial movement of the axis pin.
- H0. 1 shows, in cross section, the safety in its Safe position
- FIG. 2 shows the safety in the Off position, the revolver being ready for firing
- FIG. 3 shows the safety after firing.
- the numeral 1 indicates the hammer which is under the pressure of the hammer spring 2 and which is restrained by the trigger 3.
- the scar tip 4 of trigger 3 is formed like a nose and cooperates with the full cock notch 5 and with two adjacent safety notches 6 and 6a on the hammer.
- the tip 4 of the trigger 3 engaging the safety notch 6a represents the traditional safety.
- a cylinder 7 is mounted inside frame 13 on a cylinder axis pin 8 which is rotatable and slidable. This cylinder axis pin 8 is characterized by two annular grooves, 10 and 11, with which a cylinder axis pin latch 9 cooperates.
- Numeral 12 indicates a shell which is hit by the firing pin 1a on the hammer at the moment of firing. Part of the barrel is shown as 14.
- the safety in its Safe" position (FIG. 1) is arranged in such a way that the hammer 1 under pressure of the hammer spring 2 rests against the cylinder axis pin 8. In this position the hammer and the half cock notch 6 on the hammer l are held out of engagement with the sear tip 4 of the trigger 3.
- the safety is put into Off" position by bringing the hammer l backwards into shooting position (full cock position). This way the sear tip 4 of the trigger 3en-
- the safety groove 10 should be arranged in such a manner that the safety becomes effective before the sear tip 4 of the trigger 3 engages the half cock safety notch 6 of the hammer l in order to avoid engagement of the trigger 3 while in safe position.
- the above described feature has the advantage that, should the traditional safety fail, there is still an independent second safety available which restricts the hammer and consequently the firing pin 1a from striking the cartridge.
- a safety device for a revolver of the type including a cylinder for supporting a cartridge to be fired, a trigger-actuated hammer and a firing pin associated with said hammer for firing said cartridge upon contacting the cartridge, the device comprising:
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
A safety device for a revolver wherein the cylinder is mounted on a pin which is selectably movable along its axis from a first fixed position at which the pin is free of engagement with the hammer to a second fixed position at which the pin engages the hammer to prevent it from reaching the firing position.
Description
United States Patent Ducommun [75] Inventor: Rene Albert Ducommun, Staufen, P E S F b Switzerland rzmary xamtaeramue em erg Assistant Examiner-C. T. Jordan [73] Assignee: International Armament Attorney, Agent, or Firm-Cushman, Darby &
Corporation, Alexandria, Va. Cushman [22] Filed: Jan. 3, 1973 [21] Appl. No.: 320,766
[57] ABSTRACT [30] Foreign Application Priority Data June 27, 1972 Switzerland 9654/72 A Safety device for a revolver wherein the Cylinder is mounted on a pin which is selectably movable along 52 0.5. CI. 42/66 its axis from a first fixed position at which the p is s 1 Int. Cl F41c 17/04, F4lc 1/00 free of engagement with the m r to a on fixe 581 Field of Search 42/66, 65, 59 position at Whieh the p engages the hammer to P vent it from reaching the firing position. [56] References Cited UNITED STATES PATENTS 2 Claims, 3 Drawing Figures [65,098 6/1875 Hopkins 42/66 .15 7 if .1 i ,l I/
\\\\\\\ve\\ 12 11 u h i v 2a 4 SAFETY DEVICE FOR A CYLINDER REVOLVER The invention relates to a safety for a cylinder revolver having a hammer.
in the field of revolvers there already exist safety features which prevent the accidental firing of shots, for instance in the case of the revolver being dropped. The known arrangements operate in such a manner that they limit the movement of the hammer. However, these arrangements are complicated or they operate in such a manner that they do not satisfy all safety requirements and the regulations of many countries.
The purpose of the invention is to provide for a cylinder revolver having a hammer, a safety which restricts the movement of the hammer and which can be utilized independently of the usual safeties and which is simpler than the known safeties as far as construction and handling are concerned.
The principle of the invention is that the axis pin of the cylinder is formed in such a way as to act as a safety pin. The cylinder axis pin is provided with two annular grooves. The axis pin is mounted so as to be axially movable, except when restricted in its movement by a latch pin mounted laterally with respect to the revolver frame. The latch pin is held in position by a coiled spring arrangement which maintains the latch pin in a position which engages either the first or the second annular groove of the axis pin, thus restricting axial movement of the axis pin.
The invention will be explained in detail by reference to the following drawings:
H0. 1 shows, in cross section, the safety in its Safe position;
FIG. 2 shows the safety in the Off position, the revolver being ready for firing; and
FIG. 3 shows the safety after firing.
In the drawings the revolver is only demonstrated to such an extent as is necessary to understand the invention. The numeral 1 indicates the hammer which is under the pressure of the hammer spring 2 and which is restrained by the trigger 3. The scar tip 4 of trigger 3 is formed like a nose and cooperates with the full cock notch 5 and with two adjacent safety notches 6 and 6a on the hammer. The tip 4 of the trigger 3 engaging the safety notch 6a represents the traditional safety. A cylinder 7 is mounted inside frame 13 on a cylinder axis pin 8 which is rotatable and slidable. This cylinder axis pin 8 is characterized by two annular grooves, 10 and 11, with which a cylinder axis pin latch 9 cooperates. Numeral 12 indicates a shell which is hit by the firing pin 1a on the hammer at the moment of firing. Part of the barrel is shown as 14.
The operation of the safety will now be described. The safety in its Safe" position (FIG. 1) is arranged in such a way that the hammer 1 under pressure of the hammer spring 2 rests against the cylinder axis pin 8. In this position the hammer and the half cock notch 6 on the hammer l are held out of engagement with the sear tip 4 of the trigger 3.
It is the purpose of this invention to give the revolver a safety additional to the traditional one provided by the safety notch 6a. This is accomplished by the face that the cylinder axis pin latch 9, which is retained in the annular groove 10 of the axis pin 8 by means of a spring, not shown in this picture, serves as a stop which prevents the axis pin 8 from sliding longitudinally. When the cylinder axis pin latch 9 is depressed it is moved laterally in such a way that it moves out of engagement with the annular groove 10 of the cylinder axis pin 8, thus releasing the pin so that it can be moved axially. As a consequence, while groove 10 is engaged, the hammer l, and therefore the firing pin la, cannot possibly strike the cartridge 12. The result is a revolver absolutely safe against any uncontrolled activity, especially that caused by the revolver being dropped or by carelessness in operation of the hammer l or trigger 3.
The safety is put into Off" position by bringing the hammer l backwards into shooting position (full cock position). This way the sear tip 4 of the trigger 3en- The safety groove 10 should be arranged in such a manner that the safety becomes effective before the sear tip 4 of the trigger 3 engages the half cock safety notch 6 of the hammer l in order to avoid engagement of the trigger 3 while in safe position.
The above described feature has the advantage that, should the traditional safety fail, there is still an independent second safety available which restricts the hammer and consequently the firing pin 1a from striking the cartridge.
What is claimed is: x
l. A safety device for a revolver of the type including a cylinder for supporting a cartridge to be fired, a trigger-actuated hammer and a firing pin associated with said hammer for firing said cartridge upon contacting the cartridge, the device comprising:
an axially movable pin upon which the cylinder is mounted; and
means for selectively securing said movable pin in a first axial position out of engagement with said hammer and in a second axial position for engaging the hammer so as to restrain the firing pin from contacting the cartridge.
2'. A safety device asset forth in claim 1 wherein the pin in its second axial position engages the hammer so as to restrain it from contacting said trigger.
Claims (2)
1. A safety device for a revolver of the type including a cylinder for supporting a cartridge to be fired, a triggeractuated hammer and a firing pin associated with said hammer for firing said cartridge upon contacting the cartridge, the device comprising: an axially movable pin upon which the cylinder is mounted; and means for selectively securing said movable pin in a first axial position out of engagement with said hammer and in a second axial position for engaging the hammer so as to restrain the firing pin from contacting the cartridge.
2. A safety device as set forth in claim 1 wherein the pin in its second axial position engages the hammer so as to restrain it from contacting said trigger.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH965472A CH532769A (en) | 1972-06-27 | 1972-06-27 | Safety device for a drum revolver |
Publications (1)
Publication Number | Publication Date |
---|---|
US3803741A true US3803741A (en) | 1974-04-16 |
Family
ID=4354255
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00320766A Expired - Lifetime US3803741A (en) | 1972-06-27 | 1973-01-03 | Safety device for a cylinder revolver |
Country Status (2)
Country | Link |
---|---|
US (1) | US3803741A (en) |
CH (1) | CH532769A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4133127A (en) * | 1977-07-26 | 1979-01-09 | Armando Piscetta | Safety device for obsolete cylinder firearms |
US5704152A (en) * | 1996-10-22 | 1998-01-06 | Martin Harrison | Secure, quick release safety gun lock |
US6336282B1 (en) * | 1999-03-18 | 2002-01-08 | Armi San Marco S.R.L. | Device for automatically putting a revolver on safety |
US20040118029A1 (en) * | 2002-09-06 | 2004-06-24 | Jamir Pagnoncelli | Safety device for guns |
US20110067283A1 (en) * | 2008-05-28 | 2011-03-24 | Robert Baker | Single action firearm action |
ITBS20100016A1 (en) * | 2010-01-29 | 2011-07-30 | Uberti Spa A | RIVOLTELLA WITH A REDUCED MONTA DEL CANE RACE |
US20140331536A1 (en) * | 2008-12-31 | 2014-11-13 | Smith & Wesson Corp. | Yoke And Cylinder Retaining Mechanism |
US10330413B2 (en) | 2016-08-11 | 2019-06-25 | Springfield, Inc. | Half-cock trigger safety assembly |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US165098A (en) * | 1875-06-29 | Improvement in safety-catches for revolvers | ||
US720775A (en) * | 1902-03-15 | 1903-02-17 | Frank A Beckwith | Firearm. |
-
1972
- 1972-06-27 CH CH965472A patent/CH532769A/en not_active IP Right Cessation
-
1973
- 1973-01-03 US US00320766A patent/US3803741A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US165098A (en) * | 1875-06-29 | Improvement in safety-catches for revolvers | ||
US720775A (en) * | 1902-03-15 | 1903-02-17 | Frank A Beckwith | Firearm. |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4133127A (en) * | 1977-07-26 | 1979-01-09 | Armando Piscetta | Safety device for obsolete cylinder firearms |
US5704152A (en) * | 1996-10-22 | 1998-01-06 | Martin Harrison | Secure, quick release safety gun lock |
US6336282B1 (en) * | 1999-03-18 | 2002-01-08 | Armi San Marco S.R.L. | Device for automatically putting a revolver on safety |
US20040118029A1 (en) * | 2002-09-06 | 2004-06-24 | Jamir Pagnoncelli | Safety device for guns |
US6862830B2 (en) * | 2002-09-06 | 2005-03-08 | Forjas Taurus S.A. | Safety device for guns |
US7921589B1 (en) * | 2008-05-28 | 2011-04-12 | Freedom Arms | Single action firearm action |
US20110067283A1 (en) * | 2008-05-28 | 2011-03-24 | Robert Baker | Single action firearm action |
US20140331536A1 (en) * | 2008-12-31 | 2014-11-13 | Smith & Wesson Corp. | Yoke And Cylinder Retaining Mechanism |
US9488432B2 (en) * | 2008-12-31 | 2016-11-08 | Smith & Wesson Corp. | Yoke and cylinder retaining mechanism |
US9777982B2 (en) | 2008-12-31 | 2017-10-03 | Smith & Wesson Corp. | Shrouded barrel and sight for revolver |
ITBS20100016A1 (en) * | 2010-01-29 | 2011-07-30 | Uberti Spa A | RIVOLTELLA WITH A REDUCED MONTA DEL CANE RACE |
US10330413B2 (en) | 2016-08-11 | 2019-06-25 | Springfield, Inc. | Half-cock trigger safety assembly |
US10871338B2 (en) | 2016-08-11 | 2020-12-22 | Springfield, Inc. | Half-cock trigger safety assembly |
Also Published As
Publication number | Publication date |
---|---|
CH532769A (en) | 1973-01-15 |
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