US362631A - Iyer johnson and andrew fyrberg - Google Patents

Description

(No Model.)

I. JOHNSON & A. FYRBERG.

REVOLVER.

Patented May l0, 1887.

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inrrnn STATES PATENT Ormea IVER JOHNSON AND ANDREV FYRBERG, OF VOROESTER, MASSACHUSETTS; SAID FYRBERG ASSIG'NOR TO SAID JOHNSON.

REVOLVER.

ECFECATION forming part of Letters Patent No. 362,631, dated May 10, 1887.

Application filed December 27, 1886. Serial No. 222,596, (No model.)

To @ZZ whom z't may concern:

Be it known that we, IVER JOHNSON and ANDREW FYRBERG, both of Worcester, in the county of XVorcester and State of Massachlr setts, have invented certain new and useful Improvement-s in Fire-Arms; and we do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a iopairt'of this specification, and in which- Figure l represents a side View, partly in section, ofso much ot'a revolver as is necessary to illustrate our improvements thereon. Fig. 2 represents a part of the revolver illustrated in Fig. l, with the barrel unlocked and dropped down from the frame, to better show the operation of one part of ourimprovements; and Figs. 3 to 6, inclusive, represent different views of our said improvements, hereinafter more fully 2o explained.

Our invention relates to breech-loading tire arms having a revolving cartridge-cylinder and cartridge-extracting mechanism.

It relates more particularly to the extractordisk and its operation of said cartridge-extracting mechanism, and to means for protecting the interior of the fire-arm from dust or similar substance around the hammer thereof when at half-cock.

3o Said invention consists in improvements in the construction and means of operating the extractor-disk and its finger to extract the cartridge-shells, with a view to simplifying the construction shown in theUnited States Patent No. 339,301, granted to Johnson, Torkelson, and Fyrberg, for improvements in tire-arms, under date of April 6, 1886.

It also consists in forming a flange or hood projecting rearward from the breech, adapted 4o to fit over the top and side edges of the upper forward part of the hammer when at half-cock, so as to leave no intervening space opening between said hammer and the breech when it is in the aforesaid position, and thus, by forming a closejoint around said front side of the hammer, excluding all dust and similar particles from entering at this point and impairing the action of the working parts, it also serving to lessen the liability to accidents by premature 5o discharge in carrying the iire-arni.

To enable others skilled in the art to which our invention appertains to make and use the same, we will now proceed to describe it more in detail.

In the drawings, A represents the frame of the revolver, comprising the handle A', the receiver A2, the breech or bridge A, and the fore-hand A". The barrel B is provided with the usual top strap, B', extending back over the cylinder C, for connection with the top mem- 6o ber, B2, of the breech, to which in practice it may be locked as ordinarily. It is pivoted to the frame by means of the bolt D, so that it may be swung down, as usual, when unlocked from the breech.

.The cylinder C is fitted to rotate upon the usual sleeve, c, and said sleeve is providedl with the usual extractor, I), and spring c.

The part marked E represents our improved extractor-diskhaving the usual long projec- 7o tion or linger, d, and small projection or shoulder e, theformer being adapted to bear upon theinnerend of the extractor-spindlef against the pressure of spring c, andthe latter to bear against a shoulder on the frame in extracting the empty cartridgeshells by the operation of dropping or swinging down the barrel B from the frame, as previously stated. The extractordisk E and its ringer, when in their normal state or at rest, occupy the position shown in Fig. 1, with said finger free from the pressure of the extractorspindle and its spring, with the front side of the linger resting against the inner side of the cam part g of barrel B and the shoulder c `just in front of or in contact with the end It of the foreAhand.

The disk is arranged to yield to an outward pressure, so that it may be forced inward, as and for the purpose hereinafter described, by arrangingasq uare or rectangularshaped plate, 9o fi, over the pivotbolt D, which fits in a slot, j, formed in the disk, said slot being of sufficient length to admit of a lateral movementof the disk upon said plate and both parts rotating upon the pivotbolt. Between plate t' and the 95 bottom of slotj, next to the shoulder c, is in terposed a spiral or other spring, k, for producing a pressure ot' the plate against the pivot and thus forcing out the disk, so that said shoulder e will come against the end h of roo the fore-hand when said disk is forced or turned round on its pivot (after the extracting operation) by the extractorspindle and spring, as hereinafter described.

The plate i, surrounding the pivot-bolt D, combined with the spring 7c and other parts, as pointed out in the claims, constitutes the main or essential feature -of improvement in the extractor mechanism.

The method of obtaining a bearing of the shoulder e against the shoulder or projection h of the fore-hand is also an .improvement over the method shown in the patent hereinbefore cited, which necessitates the forming of a pocket under the part e of said fore-hand. The latter feature, however, is not new in itself, and We claim it only in combination with the first-mentioned improvement and other adjacent parts.

The operation may be briefly summed up as follows: Assuming that the various parts of the revolver are in their normal positions, ready for extracting the cm pty cartridge-shells after tiring, and that the barrel has been unlocked from the frame, as usual, by now swinging or dropping down said barrel upon its pivot, the inner end of the extractor-spindle f is brought in contact with the end of the extractor-finger d of the disk, and, being held rigid by the shoulder e bearing against the forehand, as previously described, acts as a cam to force said spindle and the Whole ex tractor back out of the sleeve in the cylinder, and thus extracting the empty cartridge-shells. 'As the barrel is continued to be moved down, the bearing or cam part g thereof comes in contact with the curved back e ofthe shoulder e and forces the extractor-disk in toward the cylinder, so that said shoulder e is carried beyond and disengaged from its holding-shoulder on the fore-hand. The disk, being released, is now (immediately upon its shoulder e passing by the shoulder h) sprung around by the ejectorspring from the position shown by full lines to that shown by dotted lines in Fig. 2, thereby allowing the ejector to be sprung forward into its normal position in the cylinder. The reearm is then reloaded by inserting new cartridges in the usual way, when the barrel is finally swung up into position and locked ready for firing. In the latter operation of swinging up thebarrel the cam part g, coming in contact with the front side of the extractor-finger, rotates the disk so as to bring the shoulder c in front of the shoulder h,when said disk and its shoulder is sprung out by its spring into the position shown in Fig. l, preparatory to again forcing out the extractor when the'barrel is broken down, as hereinbefore described.

Our improvement for excluding the dust and similar substances from entering around the usual space in front of the hammer F when at half-cock consists in forming a flange or projection, Z, on the breech or bridge of the firearm,which extends back and down therefrom over and at each side of the hammer-opening, just sufficient to lap over the top and side edges of the upper front part of said hammer, where it is usually exposed and unprotected. The use of said ange l is not only efficient for the above purpose, but also to prevent the arm from being prematurely discharged by the hammer becoming caught in the clothing or in other ways in carrying or handling said arm, said ange serving as an effectual guard against that portion of the hammer catching and being raised in any accidental manner, as will at once be seen. The length of said flange would of course be varied, aswell as its shape, to conform to different -makes of fire-arms.

We are aware that it is not new, in a broad sense, to overlap the upper end of the hammer of a tire-arm when at half-cock by its breech, the same being shown in the United States Patent No. 15,167, granted to F. Beals, dated June 24C, l856, for improvement in fire-arms; but in said patent the extreme upper end or terminal point of the hammer only is covered, leaving an open space under said end in front of the hammer, where the dust may freely enter, therefore not eiecting the same result as by the use of our invention. We, however, in view ofthe above patent, limit our claim to the construction substantially as shown and described.

Having described our improvement-s, what we desire to secure by Letters Patent is- 1. In a breech-loading fire-arm, the combination of the main pivot D, shoulder h on the front end of the fore-hand A4, cam part g on t-he base of barrel B, and the extractorspindle f, with the extractor-disk E, comprising a circular plate provided with a projection or finger, d, adapted to bear upon the inner end of the extractor-spindle in discharging the empty cartridge-shells; also provided with the shoulder e, adapted to bear against the shoulder h on the fore-hand When the barrel is swung down, and with a central opening or slot, j, at about right angles to finger d, whose length is about one-half the diameter of the circular plate, and which is a little wider than the diameter of pivot D, plate i, fitted in slot j laterally, and made shorter than said slot, so as to leave a space at the end next to shoulder e, and spring 7c, arranged in said space between the end of plate z' and the bottom of slot j, substantially as shown and specified.

2. In a breech-loading tire-arm having a rebounding hammer adapted to assume a halfcocked position after each discharge, the combination of said hammer and means for operating the same with the breech of said firearm, having a ange, Z, projecting back and down therefrom over and at each side of the opening in the frame in which the hammer works, said tiange overlapping the top and side edges of the upper front part of said hammer wheny at half-cock, so as to completely close the usual transverse opening or space between the outer line of the frame and front of the hammer, substantially as and for the purpose specified.

IVER JOHNSON.

VVitnessese- ANDREW FYRBERG.

ALBERT A. BARKER, WALTER B, NoURsn.

IIO

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