US887784A - Firearm. - Google Patents

Description

No. 887,784 PATENTED MAY 19, 1908 A. PYRBERG.

FIREAR M.

APPLICATION FILED APR. 22, 1907,

State of Massachusetts, have invented a new for operating the safety and firing pin after provide an improved means for controlling the same with an improved form of cylinder ovrrnn snares T. oer-area.

ANDREW FYRBE RG, OF HOPKINTON, MASSAL'HUSETTS.

FIREARM.

Specification of Letters Patent.

atented May 19, 1908.

Applicationfiled April 22, 1907 Serial No. 369,518.-

Hopkinton, in the county of Middlesex and and useful Firearm, of which the following is a specification. 7

This invention relates to fire arms, the principal objects thereof being to provide an improved safety for effectively preventing the firing pin from being actuated to fire the arm Whenever the hammer is accidentally allowed to swing down from any position ex cept that at which it is fully cooked or ready for repeated firing, so that it will be impossible, to discharge the fire-arm accidentally; to locate the safety in such position that it will act directly on the hammer and not through a train of mechanism; to provide firing, in such a manner as to retract the hammer when the nrmg pm is retracted; t0

the safetv, preferably in the form of a swinging turret having projections for engaging the trigger, the safety, and an operating spring for the turret; and to combinelock operated by the trigger.

Further objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompany,- ing drawings which illustrate a preferred embodiment of the invention as applied to a certain type of revolver, and in which Figure l is a side elevation of such a revolveQwith the parts in section and portions of the frame removed to show'interior construction, the hammer being shown in the position which it assumes when the safety operates to prevent the tiring of the arm. Fig. 2 is a similar view of a portion of the mechanism showing the parts in the position which they assume when the hammer is coo .uwl. Fig. 3 is a similar view showing the position assumed when the gun lire/d. Fig. 4 is another iew of a similar charactershowing the parts in the position assumed when the hammer is drawn back by the trigger for repeated tirii'ig. Fig. 5 is an cud elevation of certain elements of the deico. Fig. 6 is a side elevation ol the turret uI swinging element for operating the safety and iii ,Iil. and Fig. 7 is a plan of the same.

l! is to be understood that while the invention illustrated as applied to a revolver, 1'

many styles offire-arms.

The mam features of the inventlon will be described first with special referenceto Fig.

1. This figure illustrates a revolver frame 10 I of ordinary construction having a side swinging cylinder 11 provided with a ratchet 12 which 'may operate" as a cartridge ejector when the cylinder is swung outwardly. The construction of, the ejector mechanism is notillustrated, as it'does not constitute a struction, and a trigger i'el is mounted in the usual position. On this trigger is a projecs tion 15 which is provided with a pin 16. ()n this pin is pivoted a pawl 17 having a projection 18. On the pin is wound a coiled spring 19 engaging a fixed portion of the arm 15 at one end, and'having an end engaging the projection 18 on the pawl 16 for normally forcing this awl into position to engage the ratchet as tfie triggeris pulled to turn the cylinder. The pawl has a notch 20 which is engaged by the edge of the arm 15 to positively insure the correct amount ofmotion for the pawl. The end of the projection 15 is adapted to engage a itired'projection 21 on the hammer The hammer is pivoted on a stationary stud to swing in the usual manner. When the trigger is pulled back- "from the position indicated in Fig. 1, the end projection 15 moves upwardly and eng' a pivoted arm 24 on the hammer which held in normal. position by a spring 25in a well known manner. The projection 15 it is capable ofapplication in general toart 9 -01 this invention. The frame 10 is provided with a trigger guard 13 of any ordinary con-' operating on this arm serves to pull theha'mmer back to firing position iii a well known manner, and when it passes beyond this arm the hammer is free to swing inwardly to lire the arm being propelled by the firing spring 26.

The frame 10 is provided with a hub' 3O concentric with the stud 23 on which is pivotally mounted a swinging frame or turrat 3] designed to control the operation of the safety. This turret is provided with three projections 32, and 34 each mounted on an arm referably integral with the turret and exten ing at an angle to the plane thereof. The projection 34 is engaged by a strong spring which tends to swing the turret. counter-clock-wise for a purpose which W111 be described hereinafter.

This spring is shown like the'spring 26 as located in the hollow handle of the frame but it maybe in any desired position and of any convenient form.

The projection 32 is located in such position as to engage a curved surface 36 on the trigger which constitutes a cam for positively swinging the turret when the trigger is pulled. It will be seen. that the pulling of the trigger moves the projection 32 upwardly and swings the turret in opposition to the spring 35. When the turret is in the position shown in Fig. 1, the trigger being forward, the outer surface of the projection 33, whichis substantially perpendicular to a line drawn from t-to the center of the turret, engages a pro-v jection 37 on a safety 38 and he rls it insafe position.

account of the above mentioned directionot' the surfaee'of the projection 33 it will be seen thatthe safety-is held positively in safe positiongalthoughthe turret is held in this position by a spring. Any force brought to bear on. the safety to swing it into firing position will act directly on the flat surface of the projection 33 and will have no tendency to swing it about its pivot, as the parts are practically on a dead center. N-ow,"if

the hammer is drawn back'to a position short' of-firing position and allowed to sna down again, the first operation of drawing ,the hammer back may release the safety, but the instant the hammer is allowedto snap back, the safety will be positively held in safe position again so that a notch 39 in the hammer will engage it, as indicated in Fig. 1. he reason forthis is as follows: If the trigger is ulled or if the hammer is drawn back to any position short of that at which the projection 15 on the trigger passes over the end of the pivoted arm bl this arm will be in engage mentwith the projection on the trigger or at least will come into engagement'with it before the hammer can reach firing position and consequently, any motion of the harm. mer will be transmitted back to the trigger so as to permit the same to be retracted with the hammer and allow the turret to yield to the action of the spring 35 so as to bring the projection 33 into proper position. Thus, it will be seen that although the safety tends to force the hammer back immediately after firing more rapidly than the trigger would be retracted, this will not revent the safety from being brought bac: to safe position.

When, however, the hammer is cocked by bringing the trigger hack to cooking position, (Fig. 2) the swinging of the trigger to this position moves the turret into such position as to free the safety and allow the firing spring 26 to act and the arm to be fired, the nsi n of the spring 35 being overcome by the pull on the trigger. lYhen it is desired. to lire repeatedly. also, the swinging .ol'

the trigger into position to free the end olfthe arm 2-1 \Vlll also operate. to free the safetyand permit repeated iii-mg, but if the trigger is released at any intermediate point, the safety will be forced into safe position as has been described. springs forward and. causes the safety to be retracted to withdraw the firing pin and hammer.

It will he observed that on the safety is mounted the firing-pin 40. This forms an art'ceedingly convenient and simple arrange ment, whereby the firing pin is integrally 7 mounted on the safety itself, and is a ways controlled by the safety to keep it in proper position for necessary operation.

, When thisinvention is used in connection 43 thereon can project through the pivoted member into position. to engage a recess 44 in the cylinder andlock the same in position.

Thispivoted member has a tongue 45 thereon which-in the position shown in Fig. 1, engages a spring-pressed pin 46 located ina recess in the trigger. Now when the trigger is pulled, this pin positively engages the tongue 45 and swingsthe pivoted member on. its pivot to positively retract the locking tongue 43, but before. the trigger is pulled back very far, the spring pressed pin passes 'over the tongue 45 and permits the spring 47 which controls the pivoted member to force the lock back into position to engage the next notch on the cylinder. It will be understood that while the trigger is being pulled the pawl operates to turn the cylinder one step. Now "whenlthrz trig again moves back, the slanting upper face of the pin 4.6 engages the curved lower face of the tongue 4a and readily passes the some .without disturbing its position, so that it returns to the position shown in Fig. l readv to unlock the-cylinder. V

It will be seen that a firearm provided with this invention in the form shown, or any other form coming within the scope ol the claims is absolutely safe, as after the trigger is pulled l'roni its normal position any release ofthe trigger will only result in bringing the safety back and allowing the hammer to engage'it without firing the arm, and that firing from cocked position and repeated firing are not interferer with, while an efficient form of cylinder lock is combined with the trigger. These results are accomplished largely b r the improved construction and location 0' the safety, and by the employment of the turret together w th other combinations and arrangements as have been described, and as will brpoin-ted but in the Claims. While I have illustrated and described the nvention embodied in a particular form and applied to one kinder firearm, I am After the arm is fired the trigger pivot and provided with a firing pin, and

means for positively preventing the safety from swinging and for holding it in position to engage the hammer to check itsmotion before the stroke of the hammer is completed.

2. In a fire arm, the combination with a hammer, of a pivoted safetytherefor having a firing pin thereon and a projection, said firing pin and projection being on opposite sides of the pivot, a swinging turret provided with a projection for engaging said projection on the safety so as to move the safety to safe position and positively to hold it in safe position, and a trigger for controlling the operation of the turret.

'3. In a fire arm, the combination of a hammer a pivoted safety therefor having a projection thereon at one side of the pivot, a turret having means for moving the safety and positively holding it in safe position, and a spring for operating the turret.

4. In a fire arm, the combination with a pivoted hammer having a notch therein, of an independently pivoted safety adapted to engage in said notch and hold the hammer backfrom firing position, said safety having a firing pin thereon, and a projection on the opposite side of the ivot from the firin pin, and a movable mem er for engaging said rojection to operate the safety adapte 'to move into engagement with the end of said projection to hold it positively in safe position.

' 5. As an article of manufacture, a turret for operating the safety of a fire-arm com.- prising a circular portion adapted to swing on a pivot and having three projections, one for engaging the safety, one for engaging the trigger, and the other by which the turret may be operated.

6. In a firearm, the combination of a swinging turret having three projections thereon, an operating spring for constant engagement with one of said projections, a trigger for engaging and controlling another of the projections, and a safety adapted to be moved to safe position by the third pro-- jection.

7. in a fire-arm, the combination of a swinging turret having three integral pro jections thercon, a swinging safety adapted to be engaged by one projection, spring adapted to engage another projection in position to bring the safety to safe position, and a trigger having a curved surface engaging the third projection for overcoming the spring and releasing the safety from safepositlon when the trigger is pulled to firing position.

8. In a safety, a turret having an arm engaging the safety to operate it and to positively lock it in safe position, a spring for operating the turret-and normally holding the turret in such position as to bring the safetyto safeposition, and a trigger having means for operating the turret to bring the same to such position as to release the safety. when the trigger is moved to firing position, said spring acting to hold the safety in safe position in all other positions of the trigger.

9. In a fire-arm, the combination of-a safety, a turret having an arm for engaging 'and operating the safety and lock it in safe position, a spring for normally operating the,

fire-arm, the combination of a turret to such position as to bring the safety to safe position, and a trigger having asurface adapted to engage the turret to move the same to such position as to release the safety when the trigger is moved to firing ,position and to allow the turret to'be moved by the spring to safe position when. the trigger is in any other position than that for cocking the fire-arm or repeating.

10. In a fire-arm, the combination with a hammer of a safety, a turret for operating the safety, a spring for normally movingthe turret so as to bring the safety to safe position, and a 'trigger having means for operating the turret to release the safety when the trigger is in firing position, and

to move the safety to retract the hammer from firing position when the trigger is released.

11. In a fire-arm, the combination of a hammer, a trigger, a safety pivoted independently of said trigger and means connected with the trigger for releasing the safety from safe position when the trigger is in firing position, and for setting the safety into position to retract the hammer when the trigger is released.

12. In a fire-arm, the combination of a swingin safety, means for holdin the safety positive y in safe position and rcsi ient means for operating the holding means.

13. In a fire-arm, the combination of a safety, aswinging turret having a surface adapted to positively hold the safety in safe position on a dead center, and a spring for yieldingly forcing the turret .into position to hold the safety on a dead center.

14. In a fire arm having a cylinder, the 1 holding the pawl in operative 5 said triggeris pivoted, a lock for the cylinder pivoted at. a point in front of the trigger, a spring in front of the trigger for normally forcing the lock into locked position, said lock having a tongue rojccting toward the 10 trigger and located in trout of the same, and

a locking tongue for engaging the c linder 'eXtending over the top of the trigger and over said stud, said tongue having a recess for receiving-said stud, a spring-pressed pin 15 mounted on the front side of the trigger for F engaging said first mentioned "tongue, said l surfaces whereby when the trigger is per- I mitted to swing back to normal position the I pin will pass over the tongue and be left in position to engage the same to unlock the cylinder on the next motion of the trigger.

g In testimony whereof I have hereunto set my hand, in the presence of two subscribing i Witnesses.

ANDREW FYRB Witnesses ALBERT E. FAY, E. M. ALLEN.

I pin and-tongue having inclined contacting

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