Abstract: A safety mechanism for use with a firearm having a hammer wherein the hammer has an elongated, vertically extending recess formed therein, a transfer bar traveling within that elongated recess between an extended position and a retracted position. When the transfer bar is in the extended position, the bar is interposed between the hammer and the firing pin allowing discharge of a cartridge within the chamber. When the transfer bar is in the retracted position, a portion of the recess is exposed. The exposed recess is larger than the portion of the firing pin which protrudes from the receiver. Thus, inadvertent firing is prevented as the hammer cannot contact the firing pin. A transfer bar carrier pin located on the hand assembly initially cooperates with the trigger cam and the transfer bar to elevate the bar into the extended position.

Abstract: A firing mechanism for a muzzleloading rifle has a stock, a rifle barrel, a breech plug in the rearward end of said breech plug, a receiver on the stock, a bolt and hammer assembly in the receiver rearwardly of the nipple, and a trigger assembly operatively secured to the bolt and hammer assembly. An adapter element is mounted on the rearward end of the nipple and has a rearward end with an opening therein for receiving and holding a cap rifle primer. The bolt and hammer assembly has a hammer with a forward end in axial alignment with the adapter element, the forward end of the hammer terminating in a forwardly extending conical shaped firing surface to engage a rifle primer mounted within the opening at the rearward end of the adapter element.

Abstract: A firing pin for a weapon is movably mounted in a pin bushing which is resiliently biased within a bushing guide. The bushing guide limits maximum forward travel of the pin bushing. The pin bushing is urged into a position of firm contact with the rear of the cartridge, but limited in its forward travel by the bushing guide. The tip of the firing pin is prevented from passing entirely through the primer when struck by the firing pin hammer. The mechanism insures more reliable firing, particularly if several different caliber shells are being fired.

Abstract: A compressed gas weapon (10) is configured in the breech portion (18) of its barrel (12) to accommodate a projectile (24) in a position of readiness to fire and to reproducibly caliber the projectile (24) in the process of conveying it into the position of readiness to fire.

Abstract: A gun trigger mechanism that helps prevent accidental discharge of a gun, including a spring-loaded hammer retainable in a fully-cocked position, from which it may be fired, or a half-cocked position, at which it may be loaded and unloaded, but not fired, by engagement between a trigger sear and a hammer sear or a half-cocked notch, respectively, preferably including an interlock, hidden within the gun's frame, a trigger spring biasing the interlock towards a locked position, where it provides a blocking interface between the hammer and the gun's frame. A hammer blocking arm, on the interlock swinging end, rides generally between and against two frame shoulders when the hammer is near a firing position and the trigger is not being pulled. The hammer blocking arm and the swinging end of the interlock are moved down and forward, away from the frame shoulders when the trigger is pulled.

Abstract: A gun includes a pivoting barrel assembly, a trigger/hammer double action firing mechanism, and a barrel/inline valve mechanism for firing projectiles. The pivoting barrel assembly includes a projectile-holding rotatable cylinder and an indexing mechanism for rotating the cylinder when the trigger is pulled. A hammer is cocked by a hammer link which is operatively connected to the trigger, and a cam on the hammer lifts the hammer link out of engagement with the hammer when the hammer reaches its cocked position. The valve mechanism includes a valve stem which is slidably mounted in a valve body. A pin portion on the valve stem extends through a valve seal and a valve seal retainer, and the valve seal retainer is retained in the valve body by retainer pins which extend through the body into a groove in the valve seal retainer. A detent housing is connected to the valve body, and a detent is slidably mounted with the detent housing. The detent is engageable with projectile chambers in the cylinder.

Abstract: A gun includes a pivoting barrel assembly, a trigger/hammer double action firing mechanism, and a barrel/inline valve mechanism for firing projectiles. The pivoting barrel assembly includes a projectile-holding rotatable cylinder and an indexing mechanism for rotating the cylinder when the trigger is pulled. A hammer is cocked by a hammer link which is operatively connected to the trigger, and a cam on the hammer lifts the hammer link out of engagement with the hammer when the hammer reaches its cocked position. The valve mechanism includes a valve stem which is slidably mounted in a valve body. A pin portion on the valve stem extends through a valve seal and a valve seal retainer, and the valve seal retainer is retained in the valve body by retainer pins which extend through the body into a groove in the valve seal retainer. A detent housing is connected to the valve body, and a detent is slidably mounted with the detent housing. The detent is engageable with projectile chambers in the cylinder.

Abstract: A gas seal revolver which includes a barrel having a longitudinal bore therethrough, a rotatably mounted cylinder positioned adjacent to the barrel and having a plurality of chambers therein, and a sealing and aligning structure oriented between the barrel and the cylinder to thereby form a leak resistant gas seal when the barrel is moved against the end face of the cylinder. The barrel and cylinder assembly are movable mounted to the frame such that the revolver may be tipped open for easy loading and cleaning of the operative parts contained therein. The revolver also includes an indexing mechanism which cooperates with notches along the outer periphery of the cylinder in order to incrementally move the cylinder so that the chambers are moved into and out of preliminary alignment with the barrel bore. The barrel is also prevented from being opened during any phase of trigger motion thereby ensuring that the operator will not open the barrel during the firing cycle.

Abstract: A gas seal revolver which includes a barrel having a longitudinal bore therethrough, a rotatably mounted cylinder positioned adjacent to the barrel and having a plurality of chambers therein, and a sealing and aligning structure oriented between the barrel and the cylinder to thereby form a leak resistant gas seal when the barrel is moved against the end face of the cylinder. The barrel and cylinder assembly are movable mounted to the frame such that the revolver may be tipped open for easy loading and cleaning of the operative parts contained therein. The revolver also includes an indexing mechanism which cooperates with notches along the outer periphery of the cylinder in order to incrementally move the cylinder so that the chambers are moved into and out of preliminary alignment with the barrel bore. The barrel is also prevented from being opened during any phase of trigger motion thereby ensuring that the operator will not open the barrel during the firing cycle.

Abstract: The present invention provides an apparatus which allows cocking of the hammer of a gun whenever a gun is utilized with a casing which encases the upper rear portion of the gun preventing manual access by a user directly to the hammer itself. The apparatus of the present invention includes a cocking bar and a cocking lever both movably mounted with respect to the casing such that downward movement of the cocking lever will facilitate downward movement of the cocking bar causing cocking movement of the gun hammer itself without requiring direct access to the hammer surface by the user. Preferably the cocking bar is movably mounted within left and right cocking slots defined in the side walls of the casing. Resilient spring biasing means are preferably positioned adjacent each slot to facilitate movement of the cocking bar to the steady state uppermost position whenever downward pressure is not being exerted upon the cocking lever itself or upon a tab extending outwardly from the rear section thereof.

Abstract: A debased barrel revolver is disclosed which comprises a stock having a rear mount, a cylinder carried rotatably on said stock close against the rear mount, a barrel mounted on the stock in alignment relationship with a bottom cartridge chamber of the cylinder, and a release and percussion mechanism, and wherein at least some of the components of the release and percussion mechanism are supported in a chamber formed in the rear mount and extending therein perpendicularly to and above the barrel. By virtue of the reduced extent in the longitudinal direction of the release and percussion mechanism, substantially all of the elastic potential energy stored up therein can be utilized on striking.

Abstract: A firearm having a frame, a barrel, a trigger which is pivotally connected to the frame, a hammer which is pivotally connected to the frame, and a hammer block which is integral with the trigger and extends upwardly from the trigger to prevent the hammer from reaching it forward firing position when the trigger is in its forward position, and allowing the hammer to reach its forward firing position when the trigger is in its rearward position. The trigger is biased to its forward position and the hammer is also biased to its forward firing position.

Abstract: A device for supporting the mechanism of a revolver in association with the frame of the revolver. The device is constituted by a mechanism carrier plate (1) which directly receives the various subassemblies (4, 13, 24, 30, 35) of the mechanism, and which is capable of being mounted directly, together with the subassemblies supported thereby, on the frame (2) of the revolver.

Abstract: A hammer spur construction that is adapted to enable cocking of the hammer without interference of the cocking thumb with a scope mounted on the firearm. The spur top surface, in its uncocked position is disposed so that a plane or line tangent to the midpoint along the length of the spur top surface is substantially normal to the hammer striking surface.

Abstract: A device for adjusting the trigger weight of a revolver having a return spring and thrust rod acting on the trigger. The thrust rod has one end which is articulately connected to the trigger and another end which capable of being adjustably positioned such that the angular position of the thrust rod with respect to the trigger is variable.

Abstract: A locked breech mechanism for a firearm having a trigger, cylinder, and hammer and in which the cylinder is adapted to accommodate cartridges such as a bottleneck cartridge. The breech mechanism includes a breech member disposed between the hammer and cylinder in combination with an operating member. The breech operating member is in the form of a yoke member having a rest position in which the breech member is disengaged from a cartridge in the cylinder, and an active position in which the breech member is engaged with and locked against the cartridge.

Abstract: The present invention comprises a handgun having a frame, a trigger, a removable trigger guard mounted on the frame through a releasable latch mounted on the trigger guard and engageable with the frame wherein a spring mounted on the trigger guard urges (a) the latch to its frame engagement position and (b) urges the trigger to its at rest position.It is a feature of the invention that as the trigger is pulled to move it from its at rest position to its fire position the trigger guard latch arrangement is subjected to greater force thus increasing the force necessary to separate the frame and the guard and avoiding inadvertent detachment during recoil.It is also a feature of the invention that the rearward portion of the trigger guard is so shaped and configured to mate exactly with the handgun's grips, thus avoiding gaps between the grips and trigger guard which must occur in the use of conventionally shaped trigger guards, and which can pinch portions of the user's fingers.

Abstract: A flat gun spring for hand guns in which a rib is formed in the spring extending from the butt end of the spring toward the claw end. The longitudinal dimension of the rib extends a major portion of the spring. The depth of the rib progressively decreases from the butt end of the spring to the claw end of the spring. The progressively decreasing depth of the spring permits more energy to the stored in the spring during the early stages of hammer rotation and less energy in the later stages of hammer rotation. This eliminates "stack up" immediately prior to hammer release. The region of the spring closest to the claw end is arcuate and the width of the spring tapers from the butt end to the claw end. These factors further reduce stack up. The spring is formed with substantially constant thickness, and the rib is formed with substantially constant width.

Abstract: A revolver has a lowered firing line by alignment of the barrel with the lowermost chamber of the cylinder. The latter is swingably mounted on a frame at a location above the cylinder and cooperates with a firing mechanism in a compartment of the stock above the grip.

Abstract: An anti-lock up improvement for a conventional revolver which comprises a cam follower lever cooperating with cam surfaces on the hand for insuring that during a manually controlled movement of the trigger through a second segment of its return stroke, following a manual hammer movement back into its battery position, the hand end will move into a position to engage the next ratchet tooth after the trigger has been engaged with the cylinder lock, so that the trigger can be manually moved into its rearward position from any position within the manually controlled second segment of the return stroke of the trigger, thus preventing the trigger from being locked against such movement as would be the case when the hand moves into a position to engage the next ratchet tooth before the trigger has been engaged with the cylinder lock, and the manual movement of the trigger toward its rearward position is commenced after the hand end has been moved into a position to engage the next ratchet tooth and before the trigge

Abstract: A four-barrelled pistol is disclosed which comprises a hammer having a rotating, click-action head for successively acting on firing pins corresponding to the four barrels. Particularly, a tripping mechanism is disclosed which controls the hammer of the pistol to allow either a single-action or double action operation. The pistol includes a mechanism for blocking and keeping the hammer in a cocked position when the trigger is at rest and for unblocking it when the trigger has been displaced, and mechanism for displacing the hammer into the cocked position and disengaging it immediately thereafter as a result of the displacement of the trigger.

Abstract: An annularly symmetrical multiple fire weapon having a unitary tubular barrel with a series of annularly arranged, regularly spaced firing bores and respective cartridge chambers therein. The unitary tubular barrel means is suitable for mounting of an optical scope coaxially in the throat thereof. A firing pin release system in the weapon is incrementally rotatably shiftable in firing pin release increments to sequentially fire either one of the bores at a time or diametrically opposed pairs of the bores simultaneously. The firing bores are pre-loaded prior to a multiple fire sequence, as distinguished from the continuous loading during a firing sequence of an automatic weapon.

Abstract: Disclosed is an elongated, generally cylindrical, firing pin for a revolver, the firing pin having first and second end sections separated by an intermediate section. The first section terminates in a chisel tip for impacting a cartridge casing. The chiselled tip is characterized by bevelled sides and a bevelled bottom terminating in an asymmetrical tip end face. The firing pin is axially slidable in a bushing non-rotatably mounted in the revolver frame by a transverse bushing pin. A keyway system cooperates between the intermediate section of the firing pin and the bushing to preclude rotational movement of the firing pin relative to the bushing.

Abstract: A novel indexing system for revolvers is disclosed in which a trigger-actuated finger grabs one of a plurality of circumferentially-spaced notches on the rim of the chambered cylinder and rotates the cylinder through the required arc, as the trigger is being pulled, to advance the next chamber to its proper firing position.The finger is part of a modular unit which fits into a complementary recess of the revolver's frame and takes the place of the standard "hand-and-ratchet" combination for rotating the cylinder. The module forms part of the recoil face and includes a stop for precisely registering the rotated chamber with the revolver's barrel just prior to firing.

Abstract: Disclosed is a revolver with a cylinder having an elevated number (e.g. 12) of cartridge chambers, this cylinder being held in a frame formed in part by a pivotable yoke on which the cylinder can be swung out laterally for reloading. The remainder of the frame is integral with a trigger guard which is located behind the cylinder and, along with other structural elements, is bracketed by a sheet-metal jacket of inverted-U shape forming the body of the firearm. A pistol grip attached to that body contains a compression spring which is coupled to the hammer of the firing mechanism and is repressible by the trigger or an independent lever to cock the hammer for double-action or single-action firing. A loader, comprising two hingedly interconnected disks juxtaposable to bracket the end flanges of a set of cartridges between them, is insertable into a clearance between the rear face of a cylinder and a stationary shield fastened to the frame.

Abstract: A revolver of the type which has an opening for the lateral displacement of the drum to be loaded, which revolver is characterized in that the handle and the step thereof are secured to each other by a mortise-like coupling which simplifies the separation of the two members. The weapon has a more practical positioning of the component parts of the firing mechanism so as to facilitate the access and maintenance of the mechanism.

Abstract: An improved revolver hand and hand spring which permits the revolver to accommodate a multiplicity of approximately equal hand lengths.

Abstract: An actuator system for the trigger return in double-action revolvers includes an actuating rod having a rounded end engaged in a recess in the trigger with a helical coiled return spring biasing the rod by means of a cylindrical shoulder thereon and a rotary abutment member having a bore, which bore serves as a guide for the axially shiftable rod. The system provides an improved double-action operation since it compensates for the increasing reaction of the spring by reducing the lever arm or moment of this reaction on the trigger during its rearward movement. An improvement enables the user to control the "trigger weight" in a single-action operation by the provision of a return spring control bushing which can be adjustably threaded in the rotary abutment member to vary the effective operating length of the spring.

Abstract: A small, single action revolver having a spring-biased, floating firing pin which is retained within a bore in the frame of the revolver by a lip on the inside surface of a side cover plate which, in turn, is attached to the frame and encloses the hammer and trigger mechanism within a recess in the frame.

Abstract: A hand gun is provided with a trigger operable against the action of a trigger return spring which takes the form of a compression spring received in the stock of the hand gun to thereby provide a resistance which is relatively constant and the compression is adjustable.

Abstract: A semi-automatic double action revolver having an axially slidable and rotatable barrel aligned with a lower chamber of a top pivotal swing-out cylinder. The trigger mechanism includes a safety rod to prevent the opening of the cylinder while the hammer is cocked, or not in the rest position, and a transfer bar is provided between the hammer and the firing pin so that the firing pin can only be actuated when the trigger has been pulled all the way back, beyond the double action and single action hammer cock position.

Abstract: Disclosed is a firing mechanism for revolvers having a firing pin and a limit pin each movable by the hammer to engage the cartridge and cooperable to limit the extent of penetration of the firing pin into the cartridge. The limit pin engages the rim of the cartridge casing substantially simultaneously as the primer cup is struck and the cartridge is fired. The extent of penetration of the firing pin into the primer cup is predetermined and does not vary between long and short cartridges. The limit pin further retains the cartridge casing in the revolver chamber initially upon firing to permit maximum radial expansion of the casing while the cartridge casing lies fully seated in the forwardmost position in the chamber. Upon postfiring rebound, the cartridge casing elastically recovers sufficiently to provide a clearance space between the walls of the casing and the cylinder chamber to prevent jamming of the casing in the chamber.

Abstract: A revolver characterized by an improved hand, strut and transfer bar construction includes a frame, a cylinder and associated actuator for the cylinder supported in the frame, a trigger and a hammer also both mounted in the frame. The hand is pivotally supported from the trigger preferably by means of a pivot pin at the lower end of the hand. When the trigger is pulled, the hand is for operating the cylinder actuator to rotate the cylinder to the next position prior to firing. The transfer bar or connector as it is sometimes referred to is also pivotally supported at its lower end from the hand. The transfer bar is preferably supported about a mid-point of the hand intermediate the pivot support for the hand and the upper end thereof. The transfer bar cooperates with the hammer when the trigger is pulled to fire the firearm.

Abstract: A trigger guard assembly preferably for a revolver which is removable from the frame of the firearm includes a trigger guard frame for carrying a trigger, a trigger spring and actuating rod, a cylinder actuating hand and hammer transfer bar assembly and hammer pivot holes in the trigger guard frame. The trigger guard assembly is removably secured to the frame preferably by three support points whereby the trigger guard assembly may be removed from and returned to the revolver frame as a totally assembled unit. Lug and socket means at the front of the trigger guard frame provide a first support point and a second support point is provided by a spring-biased plunger at the rear of the trigger guard assembly having a wedged end coacting with the slot in the frame. The spring biased plunger is preferably operable from outside of the bottom of the frame to release the trigger guard assembly.

Abstract: A helical spring for actuating the hammer of a revolver is combined with a link in the form of an angle bracket in a manner such that the pull on the trigger is minimized and at the same time held constant throughout its travel. The combination is constructed and adapted for ready conversion of hammer mechanisms of existing revolvers.

Abstract: A double action revolver has a frame on which is mounted a cylinder, a trigger and a hammer. A hammer or main spring is interposed between the trigger and hammer such that pulling the trigger causes the spring to compress and bias the hammer toward its fired position. The position of the hammer remains essentially unchanged during initial trigger pull by virtue of a toggle spring device interposed between the frame and the hammer. When the hammer spring is sufficiently compressed, a surface on the trigger contacts and engenders a deflection or buckling of the toggle spring device. Buckling of the toggle spring device permits the hammer spring to drive the hammer to the fired position in which a cartridge is fired.A spring loaded cylinder stop, having a projection adapted to be received in a locking recess on the cylinder, is adapted to be displaced forwardly, against the bias of its spring load during initial trigger return from the pulled position to its normal or released position.

Abstract: A hammer type ignition system for a firearm having a hammer pivoted about a pivot pin characterized by a floating cam also pivoted about said pivot pin and pivotally movable relative to the hammer, co-operable means on the hammer and cam limiting said relative pivotal movement therebetween, and a sear engaging surface on the cam releasably engageable by the sear of a firearm trigger.

Abstract: A double-action revolver has a hammer assembly which includes a mechanism for positively defining the displacement and the engagement positions of the sear to insure accurate and smooth coaction of the sear with the trigger mechanism.The trigger assembly includes a cylinder-actuating hand, trigger lever, and transfer slide which is raised by the trigger to a position where it is struck by the hammer to percuss the firing pin. Percussing of the firing pin can only be accomplished by coaction of the trigger and hammer, thereby eliminating the requirement for a hammer block or other safety device.The handle of the revolver includes a wedge-shaped section adapted to fit snugly in the web of the palm between the thumb and first finger, while the butt of the handle fits in the hypothenar eminence area of the palm, so that the handle will be stably held at both its upper and lower ends during the firing cycle of the revolver, to prevent bucking or twisting of the revolver when it is discharged.

Abstract: A double action hammer for a revolver including a link pivotably mounted off center in a groove in the top of the hammer so that when pivoted from the groove to an exterior position relative to the groove it will be locked in place and will move the hammer to cock the trigger of the revolver for quick action. A leaf spring is embedded in the hammer between a wall of the groove and the bottom of the link to aid in pivoting the link to a closed position. In its closed position in the groove, the link has an outer surface contiguous with the outer edge of the hammer so that when the revolver is placed in a pocket, it will not snag on the clothes of the user enabling ready removal of the revolver.

Abstract: A slide in a pistol applies force to the trigger. A spring is biased between the slide and a link member. The link member is screw-adjustable from outside the firearm in order to vary the pressure on the trigger. The link member is arranged to be non-rotating and has a hole therein. A hammer pushrod passes through the hole.

Abstract: A revolver having an essentially conventional hammer and trigger is provided with a main spring that combines the function of the separate hammer spring and trigger spring heretofore employed, the single main spring urging both the hammer and the trigger to their respective at-rest positions. A generally vertically disposed main spring lever is positioned rearwardly of the hammer and the trigger, the lower end of the main spring lever being pivotally mounted on the frame and the upper end being operatively connected to the hammer at a point below the pivot axis thereof. A generally horizontally disposed main spring is positioned between the trigger and the main spring lever, the forward end of the main spring being operatively connected to the trigger at a point below the pivot axis thereof and the rearward end of the spring being operatively connected to the main spring lever at a point intermediate the lower and upper ends thereof.

Abstract: A pistol of the revolver type having two vertically spaced barrels having bores of different diameters, a cylinder having chambers for two different sized cartridges, the bullets therein being adapted to fit, respectively, the barrels of different diameter, and means for selectively firing cartridges in said cylinder chambers.

Abstract: A revolver in which the cylinder is indexed by the cylinder-indexing hand to a position just before the next chamber is in full alignment with the barrel where the corresponding cylinder notch partially overlaps the cylinder lock. The cylinder lock is provided with a cam-surface on its cylinder-engaging portion that engages the leading edge of the notch for camming the cylinder the rest of the way into its fully indexed position.

Abstract: A firing mechanism in which the hammer and trigger are interconnected by gears, so that the hammer can be cocked and fired simply by pulling the trigger in what is commonly referred to as double-action. The hammer is mounted so that it can pivot independently of the gears in order to discharge a cartridge. A sear connects one of the gears to the hammer so that it can be cocked by means of the trigger and then released when the trigger is fully retracted. A safety feature is also provided by mounting the hammer so that it is normally out of alignment with the firing pin and, thereby, can not accidentally discharge the gun. However, when the trigger is pulled the hammer is shifted bodily to bring it into alignment with the firing pin.

Abstract: Double action revolver having a slider with an opposing or withdrawing spring. The withdrawing spring of the rebounding slider is constituted by elastic arm of which one of the ends is fixed, and is maintained within the frame of the revolver, the other end of such spring being mobile and engaging a curved abutment surface connected to the slider, the point of engagement with said abutment surface varying as a function of the position of the slider in the frame. The slider is provided with rollers for rotation around two parallel axles and roll along a supporting plane surface provided in the frame.