US247376A - William mason - Google Patents

Description

(No Model.) W MASON.

BREEGH LOADING FIRE ARM. No. 247,376. Patented Sept. 20,1881

7772. 777a umz Jud/en UNrrE STATE Parana Fries.

NVILLIAM MASON, OF HARTEORl CONNECTICUT, ASSIGNOR TO THE COLTS PATENT FIRE-ARMS MANUFACTURING COMPANY, OF SAME PLACE.

'BREECH-L'OADING. FIRE-ARM.

SPECIFICATION forming part of Letters Patent No 247,376, dated. September 20, 1881;

' Application filed May 21,1881. (Nomodel) To all "whom it may concern V Be it known that I, WM. MASON, of Hartford, in the county of Hartford and State of Connecticut, have invented a new Improvement in BreeCll'IlUlldlllg Fire-Arms; and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to bee f'ill, clear, and exact description of the same,and which said drawings constitute part of this specification, and represent, in-- Figure l, a sectional side view of the parts in their normal condition; Fig. 2, the same with the barrel tilted,- Fig. 3, a modification.

:5 This invention relates toanimprovement in that class of arms in which the barrel or barrels are hung l'orward and so that the breech end tips up to open the cartridge-chainber, and

known as barrel tilting up at the breech,

and with special reference to what are known as concealed hammers that is to say, the

hammer-arranged within the receiver of the arm and cocked in the act ofi tilting the barrels.

The invention consists in a rock-shaft ar 2 5 ranged beneath the barrels transverselythereto, and substantially the axis upon which the barrels turn, and in connection with the barrel, so that as the barrels are tilted the rock-shaft will turn upon its axis, combined with a mainspring hung to said shaft, its doubled end hung to said shaft, the other two ends hinged to the hammer respectively, the one infroht and the other in rear of the pivotfas more fully hereinafter described.

A represents the frame of the receiver, extending forward beneath the barrels B, as at O, the forward end rounded. to receive the forearm I), in substantially the usual manner. In a recess in the receiver theham mcr E is hung upon a pivot, a,the upper end ornose arranged.

to strilge a firing-pin,b; orit maybe constructed with a projection which will pass through an opening, in the breech'end of the receiver to strike the primer.

F is a transverse rock-shaft arranged at the forward end of the receiver, lit-heath the barrel, and forming substantially the axis on which the barrels turn in tilting. On the said rockshaft 2. cam-like projectioinf, is formed upon so the upperside, and asimiler camprojectiomh, draws the mainepring forward, asindicated in roe below, and on the under side ot' 'the barrela projecting lug, l, is formed to hook over the rock-shaft, its front surface engagingtthe cams f h, as shown, so that when the barrels are tilted the surface of the lug above the pivot bears against the cam f and turns the roe-ls shaft forward. Then, in returning the barrels, the surface of the lug on the other side hears upon the cam hand turns the rock'shaft in the opposite direction;

In the best adaptation of this invention a bell-crank lever is hung inreariot' tlie shaft-F upon a pivot, d, one arm, 0, entering a recess on the rear surface ofthc shaft, the other arm, f, extending upward, and to this upper arm the doubled end of the V-sh'aped mainspring is hung,as upon a pivot, h, thetwo endsot' the mainspring extending toward thehammer, one

end,'i, hung to the hammerforward of its pivot, as at l, the othereml,m, of the mainspring hung to the hammerin rearof the pivot, as atn, the connection between the hammer and'the respective ends of the inainspring being by the common and well-known link, s, and strut it.

When the barn-ls are tilted,-a sln Fig.2, the rock-shaft F moves from the position denoted in Fig. l to that denoted in Fig. 1?, throwing up the arm c of the bell-crank lever and turning the otherarm,f, to the rear toward the hammer. In this movement of the lever the mainspring acts as a connection to the hammer to impart the movement of the lever to the hammer-'that is, pressing it backward-the lower end, i, of the mainspring bearing against the hammer above the pivot, as at 1', which forces. the hammer to full-cock, where it is engaged by the sear H. In the act ofcocking theham mer the tw ends of the mainspring are car 'ried rearward, the pivot n, to which the end at of the mainspring attached, beirigln rear 0! the hammer-pivot, is carried downw 'nd, and the point 1, to which the eudt'ot' the inninspring is attached, or upon which it bears, being forwardofthe hammenpivot, is raiser. with the end 0% the rnainspriug-that is, in ocking the hammer the two ends of the mainspring are brought together, as seen in Fig.2. Then whep the barrels are returned, leaving thehammer at full-cock, the lever is also returned, which the their broken lines, Fig. 2. The link-connections between the inninspring and the hammer are brought from their rearward inclined position to .nrly

applied pertinllyin tilting the barrels and corn pleted in their return.

l ihile prefer the bell-crank lever, the forward end of theunainspring may be hung directly to the shaft below its center, as seen in Fig. 3, so that from the rotation of the shaft the spring will. receive substantially the same movement as imparted by the lever, and act upon the hnmnnerin the samemanner. Itherefore do not wish to limit the invention to the employment of the lever.

It will be understood bythose skilled in the art that, while specially intended for doublebarreled arms, this invention may be applied to singlebnrrel arms.

In another application for patent, which I have entitled {)aseA, I have shown the rockshaft arrenged in the same manner as in this application, but with a different intermediate mechanism. I therefore do not in this application make broad claim to thetransversc rockshaft rotated by the opening and closing movements of the barrel to cock the hammer; but

What I do claim is-- l. in fire-arms in which the breech is opened l perpendicular, so that the end mot by the barrel tilting up at the breech, the combination therewith of a transverse rock-shaft arranged substantially at the axis upon which the barrels tn1'n,an extension from the barrels into connection with said rock-shaft, so that as the barrels are tilted said shattwill be turned, a hammer hung nt' the rear with a \i-shaped mainspring, and mechanism, snbstantiallysuch as described, to'connect the doubled end of said mainspring with the shaft, so that as the shaft is rotated by tilting the barrels the said spring is forced to the rear and returned as the barrels are closed,the two ends ot'the mainspring' hung t0 the hammer, the one forward of the hammer-pivot, the other in rear of said pivot, substantially as described.

2. In firearms in which the breech is opened by the barrel tilting up at the breech, thecoinbination therewith ot' a transverse rock-shaft arranged substantially at the axis upon which the barrels turn,an extension fromthe barrels into connection with said rock-shaft, so that as the barrels are tilted said shaft will be turned, a hammer hung at the rear with n bell-crank lever, one arm of which engages with said rockshai't, a. V-shaped mainspring hung by its doubled end to the other arm ot'snid lever, the

two endsof the spring hung to the hammer respcctively, the one forward oi',the other in rear of, the pivot upon which the hammer turns,

substantially as described. WILLIAM MASON.

Witnesses:

- E. F. BODWELL,

SAM WALKER.

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