US715773A - Magazine-firearm. - Google Patents

Description

:Patanted Dec. l6, I902.-

W. B. FARWE-LL. MAGAZINE FIREARM. (Application filed Aug. 26, 1896.)

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UNITED STATES PATENT @EFICE.

WILLARD B. FARWELL, OF SAN FRANCISCO, CALIFORNIA.

MAGAZINE-FIREARM.

SPECIFICATION forming part of Letters Patent N 0. 715,773, dated December 16, 1902.

Application filed August 26, 1896. Serial No. 604,014. (No model.)

$0 at whom it may concern.-

Be it known that I, WILLARD B. FARWELL, a citizen of the United States, residingin the city and county of San Francisco,State of California, have invented certain new and useful Improvements in Magazine Repeating Firearms; and I do hereby declare the following to be a full, clear, and exact description of said ,invention,such as will enable others skilled in the art to which it most nearly appertains to make, use, and practice the same.

Myinvention relates to what are commonly known as magazine repeating firearms. Its main feature is the adaptation of a revolving magazine interposed in the frame of the gun between the rear end of the barrel and the receiver in such relation to the bore of the barrel that each section of the revolving carrier inclosed within the cylindrical cover of such magazine-carrier is successively brought in line with the bore of the barrel as such magazine-carrier is revolved, in combination with a sliding breech-bolt which serves alternately as a bolt to force the cartridge into the chamber of the barrel and then as a breechbolt to close the-rear end of the barrel when the gun is fired. The firing-pin and mainspring are carried in this breech-bolt and are operated by ordinary sear-and-trigger mechanism. The breech-bolt also carries a shellextractor and in its backward movement operates an ejector which discharges the empty shell through the top of the cylindrical casing B, inclosing the revolving magazine-carrier E, Without interfering with the revolving movement of such magazine-carrier. In its reciprocating movement the breech-bolt also actuates the mechanism which rotates the magazine-carrier and brings a fresh cartridge in line with the bore of the gun, so that by simply drawing back and returning the breechbolt the several operations of loading and discharging the gun are successively accomplished.

In order to more particularly describe the different parts and features of my improved magazine repeating firearm, reference is had to the accompanying drawings, in which-- Figure 1 is a top or plan View of my magazine repeating firearm. Fig. 2 is a side view or elevation of the same. Fig. 3 is a vertical .linea a.

cross-section of Figs. 1 and 2 at the broken Fig. 4 is a vertical longitudinal section of the frame of the gun, the breech-bolt, trigger, sear, back-stop, and pawl-carrier being shown in place and not in-section. Fig. 5 is a vertical longitudinal section of the frame and the breech-bolt in its extreme back working position, the revolving carrier being shown in place and not in section. Fig. 6 is a vertical cross-section of Fig. 4 at the broken line b b. Fig. 7 is a vertical cross-section of Fig. 4: at the broken line 0 c. Fig. 8 is a vertical cross-section of Fig. 4 at the broken line 61 d. Fig. 9 is a vertical cross-section of Fig. 5 at the broken line 6 6. Fig. 10 is a vertical cross-section of Fig. 2 at the broken line a a Fig. 11 is a vertical cross-section of Fig. 2 at the broken line or a Similar characters refer to similar parts throughout the several views.

A represents the stock of the gun, both at the front and rear of the frame.

C is the receiver, within which the breechbolt reciprocates.

D is the breech-bolt.

E is the revolving carrier.

F is the shaft or bearing upon which the revolving carrier turns. Gr is the ejector, pivoted in such carrier-shaft.

H is the trigger.

K is the sear.

L is the back-stop, which when in place limits or stops the backward motion of the breech-bolt D.

M is the upright pawl and cam-pin and crank-carrier,through which combination the revolving motion of the magazine-carrier is obtained.

N is the detent-pawl and pawlcarrier,which holds the revolving magazine-carrier in position and prevents any backward movement of the same.

0 is the breech-bolt sleeve.

P is the cocking-head.

R is the extractor.

S is the cover, attached to and having a reciprocating motion with the breech-bolt action.

T is the firing-pin.

U is the head of the loading-stop, which actuates and is fixed to the rear end of a connecting-rod, the forward end of which connecting-rod is attached to a shutter, the use of which is hereinafter described.

V is the adjustable cam-pin, which when seated in the cam-groove N of the breechbolt D actuates the pawl-carrier M in its upand-down movement.

X is the hand-lever, attached to and forming part of the breech-bolt D, by the manipulation of which the mechanism of the gun is operated.

The operation of the mechanism is as follows: To load the magazine, the hand-lever X is turned upward, releasing the breech-boltlocking devices, hereinafter described, and permitting the breech-bolt to be drawn back to its extreme rearward position, as shown in Fig. 5. Turning the head of the loading-stop U down to the left into the position shown by the dotted outlinef, Fig. 3, the shutter 7, Fig. 9, attached to the forward end of the connecting-rod which unites it to the head of the loading-stop U, is turned up so as to cover the breech-bolt opening which leads into the breech end of the barrel, as shown by the position of the dotted outline, Fig. 9, thus preventing a cartridge from being pushed forward prematurely while the act of loading, the magazine is being performed. At the same time the heel of the loading-stop U is swung into a short circular cut recess in the forward part of the breech-bolt D, as indicated by the dotted line 9, Fig. 3. This short circular cut recess is constructed of just sufficient length to permit the bolt to be moved forward and back far enough and no farther to permit the cam-pin V to reciprocate to and fro in the forward incline of the cam-groove W in the breech-bolt D, as shown at h, Fig. 4., it being understood that such incline h in the cam-groove W being at this time back in its extreme rearward position, as the breechbolt D is then in its back instead of forward position, as shown in such Fig. 4. The short forward-and-backward movement of the breech-bolt while in this position and while it is thus limited in its action causes the pawl-carrier M when thus actuated by the movement of the cam-pin V in the forward incline of the cam-groove W to move up and down, carrying the pawl 70, Fig. 6, which with each up-and-down movement as it engages in each tooth of the ratchet Z, Figs. 5 and 6, turns the revolving carrier E one section. Two cartridges ata time may now be dropped into the upper section of such revolving carrier E through the opeuingm, Fig. 5, followed by two quick forward and back movements of'the breech-bolt in its now limited action, as here explained. This movement of the breech-bolt sends the revolving carrier around two sections, bringing a new and empty section to the top, where two more cartridges may be dropped in and the short quick movements of the breech-bolt backward and forward repeated, the same operation to be repeated until each section of the revolving magazine-carrier is filled. Turning now the loading-stop head U upward to its original position, the shutter 7, Fig. 9, is also returned to its place of rest, and the breechbolt is now free to be pushed forward, carrying one cartridge before it and forcing it into the chamber at the breech end of the barrel. As the hand-lever X reaches the cam-openingn, Fig. 2, it is pressed downward into the same, turning the breech-bolt to the right, and as the rear side of the base of such hand lever bears against the incline of the rear side of such cam-opening n the breech-bolt is necessarily forced forward while thus being turned down to the right, forcing the car tridge into its seat in the chamber in the breech end of the barrel. As this turning movement of the breech-bolt takes place the cam-pin V traverses through the inclined groove V at the rear end of such breechbolt, thus permitting the pawl carrier M to remain stationary in its place until the breech-bolt has been turned backward and upward again and the cam-pin V has again been brought into action by pulling back the breech-bolt to its extreme rearward position. As this downward turning of the breech-bolt takes place also the lug 29, Fig. 5, on the forward end of the breech-bolt D is turned up to the left and shuts into a recess cut in the forward end of the magazine-casing at s, Figs. 4: and 11, its rear side resting solidly against the wall at the back part of such recess. At the same time the lug t, Fig. 5, at the rear and under side of the breech-bolt D shuts up to the left into another recess 5 Fig. 10, cut in the left inner side of the breech-bolt seat in the receiver 0 exactly opposite the camopening "17., Fig. 2, the rear side of such lug tresting also against the rear wall so formed at the back of such recess, while the base of the hand -lever X now finds itself seated solidly in the lower straight up-and-down wall portion of the cam opening 71., thus furnishing there separate resisting lockingpoints against the back pressure of the breech-bolt when the gun is fired. While this operation of loading, pushing home the cartridge into the chamber in the breech end of the barrel, and looking it firmly in its place there is being performed the cocking of the gun has at the same time been going forward automatically and simultaneously therewith. With the first upward movement of the handlever X after the gun has been fired or when the bolt is in its extreme forward position the forward lip 13 of the cocking-head, Fig. 5, rises up and back in an angular incline cut in the lower side of the rear end of the breechbolt D until, as the breech-bolt completes its turning and releasing movement, such lip 13 of the cocking-head P comes to rest against the back end of the breech-bolt as it passes out of such angular incline and assumes the position (equivalent to half-cock) shown in Fig. 5, Where it remains until the breech-bolt has been pushed forward again. As this forward motion of the breech-bolt proceeds the lower lug u. on the cooking head, Fig. 5, brings up against the sear K and is held there while the forward movement of the breechboltis being finished, necessarily compressing the mainspring and bringing the piece to full cock when this forward movement of the breech-bolt is completed, leaving it ready for firing by trigger-pressure in the usual manner. With the firing of the gun the handlever X is again lifted and the breech-bolt drawn back. The extractor R, which as the bolt moved forward had risen up and hooked over and onto the flange of the cartridge, now withdraws the empty shell back to a point where the lugp on the under side of the forward end of the breech bolt D impinges against the short upright arm of the ejector G, Fig. 4. This action throws the forward long arm of the ejector G suddenly upward, striking against the under side of the empty shell with a quick hard blow, throwing it upward and out through the opening m in the cylindrical magazine-casing B. The piston 2, Fig. 4, which when at rest is held in its forward position against the ejector by the spiral spring at its end, as shown in Fig. 4, instantly returns the ejector G to its position of rest,leaving the magazine-carrier free to revolve on the shaft or hearing F without being obstructed by the ejector as it throws out the empty shell. Again, as the bolt moves forward the lug p impinges against the rear inclined side of the short upright arm y of the ejector G, causing it to pitch forward and downward until the bolt is free to pass over it, when the piston again actuated in the same manner by the reverse movement of the ejector as by its upward movement once more restores it to its position of rest ready for the next backward movement of the breech bolt, when the empty shell is ejected as before. It should be stated here also that in case the primer misses fire when the trigger is pressed the whole cartridge, with the bullet, is extracted and ejected with equal facility, thus preventing any stoppage of magazine-firing from any such cause.

The movements hereinbefore described presuppose that the magazine is in full operation. Should it be desired to cut off the magazine and convert the gun into a single loader, it is accomplished by drawing the cam-pin and its crank-head V out into the position shown by the dotted outline 3, Fig. 6. A stop and guide-pin 5, Fig. 6, resting in a longitudinal groove cut in the side of such cam-pin V permits this withdrawal movement to take place. When the cam-pin, with its crank-head, has thus been withdrawn, the stop and guide-pin brings up against the inner end of the longitudinal slot. At this point it is free to enter a circular slot passing half-way around such cam-pin, so that the cam-pin crank can be turned in to the upright position shown by the dotted outline 3, Fig. 6, where it remains so long as it may be desired, leaving the breechbolt free to reciprocate in one compartment alone of the revolving magazine-cylinder with the gun at single fire. To restore it again to magazine fire, the movement of the cam-pin and crank V is of course simply reversed, and the magazine is once more in operation.

At any time when it may be desired, the gun being at full cook, the safety-catch 15, Fig. 4, may be turned on in such a manner that the gun cannot be fired until this is released. This is accomplished by taking hold of the knob on the rear end of the cookinghead, pulling it back slightly and turning it to the right, when the right-angle cut in the forward end of such safety-catch shuts over the end of the sleeve 0, where it is held in place by the forward pull of the mainspring so long as may be desired.

The breech-bolt D can be removed at any time that may be desired by simply pulling down the back-stop L, thus permitting the lug p on the lower side of the forward end of such breech-bolt to pass freely over it.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is

1. In a breech-loading and repeating firearm, the combination with the barrel and a reciprocating breech-bolt in line therewith, of a rotating magazine mounted at the rear end of the barrel in such position that each chamber of the magazine is brought successively behind the bore of the barrel as the magazine is rotated, a ratchet-wheel on the shaft of the magazine, a cam upon the surface of the breech-bolt at its front end having a portion diverging from the axial direction of the breech-bolt and a pawl for rotating said ratchet-wheel, said pawl being reciprocated by the cam upon the breech-bolt in a plane perpendicular to the direct-ion of motion of the breech-bolt and parallel with the direction of rotation of the magazine, substantially as described. 7

2. In a breech-loading and repeating firearm, the combination with the barrel and a reciprocating breech-bolt in line therewith, of a rotary magazine mounted at the rear end of the barrel in such position that each chamber of the magazine is brought successively behind the bore of the barrel as the magazine is rotated, a ratchet-wheel on the shaft of the magazine, a cam upon the surface of the breech-bolt at its front end having a portion diverging from the axial direction of the breech-bolt, a pawl for rotating the ratchet-wheel, said pawl being reciprocated by the cam upon the breech-bolt in a plane perpendicular to the direction of motion of the breech-bolt and parallel with the direction of rotation of the magazine, and means for withdrawing the pawl from operative connection with the cam, substantially as described.

3. In a breech-loading and repeating firearm, the combination with the barrel and a reciprocating breech-bolt in line therewith,

of a rotating magazine mounted at the rear end of the barrel in such position that each chamber of the magazine is brought successively behind the bore of the barrel as the magazine is rotated, said breech-bolt having at its front end an operative connection with the shaft of the magazine to the rear of the cartridge-carrying chambers of said magazine whereby a rotary movement is imparted to the magazine by the longitudinal movement of the breech-bolt after the breech-bolt has been withdrawn to the rear of said cartridge-carrying chambers, and a movable stop arranged to be moved intoa position to limit the reciprocatory movement of the breechbolt, when desired, to rapidly fill the magazine, substantially as described.

4:. In a breechloading and repeating firearm, the combination with the barrel and a reciprocating breech-bolt in line therewith, of a rotating magazine mounted at the rear end of the barrel in such position that each chamber of the magazine is brought succes sively behind the bore of the barrel as the magazine is rotated, an operative connection between the breech-bolt and the shaft of the magazine to the rear of the cartridge-carrying chambers of said magazine whereby a rotary movement is imparted to the magazine by the longitudinal movement of the breechbolt, a movable shield at the front end of the upper chamber, and a movable stop arranged to be moved into a position to limit the reciprocating movement of the breech-bolt, substantially as described.

5. In a breechloading and repeating firearm, the combination with the barrel and a reciprocating breech-bolt in line therewith, of a rotary magazine mounted at the rear end of the barrel in such position that each chamber of the magazine is brought successively behind the bore of the barrel as the magazine is rotated, a fixed shaft on which said magazine is rotatably mounted, said shaft being slotted, an ejector vibratably mounted in the slot of said shaft, and means, operated by the longitudinal movement of the breechbolt, for actuating said ejector, substantially as described.

6. In a breech-loading and repeating firearm, the combination with the barrel and a reciprocating breech-bolt in line therewith, of a rotary magazine mounted at the rear end of the barrel in such position that each chamber of the magazine is brought successively behind the bore of the barrel as the magazine is rotated, a fixed shaft on which said magazine is rotatably mounted, an ejector vibratably mounted in said shaft, and means, operated by the longitudinal movement of the breech-bolt, for actuating said ejector, substantially as described.

'7. In a breech-loading and repeating firearm, the combination, with the barrel and a reciprocating breech bolt in line therewith, of a rotary magazine mounted at the rear end of the barrel in such position that each chamber of the magazine is brought successively behind the bore of the barrel as the magazine is rotated, a ratchet-Wheel on the shaft of the magazine, a fixed shaft on which the magazine rotates and an ejector mounted therein, a lug on the breech-block engaging the ejector to operate the same, and a cam on the breech-block and pawl operated thereby and operating the ratchet-wheel to actuate the same, the operation of the lug and ejector taking place before that of the cam, pawl, and ratchetwheel, in the retrograde movement of the breech-bolt, substantially as described.

In testimony whereof I have hereunto set my hand this 27th day of July, 1896.

WILLARD B. FARWELL.

Witnesses:

LEE D. CRAIG, CHAS. J. ARMBRUSTER.

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