US353914A

US353914A - Revolver

Info

Publication number: US353914A
Authority: US
Publication date: 1886-12-07
Anticipated expiration: 1903-12-07

Description

J. BOLAND.

REVOLVER.

'ufMw/w v rCZ Zw $MML- M fd A; W

ments of my improvement.

UNITED STATES PATENT OFFICE.

JAMES BOLAND, OF NORWICH, CONNECTICUT.

REVOLVER.

SPECIPICATIONiorming part of Letters Patent No. 353,914, dated December.7, 1886.

Application filed July 30, 1886. Serial No. $109,520.

To. aZZ whom it may concern:

Be it known that I, JAMES BOLAND, a citizen Of the United States, residing at Norwich, New London county, Connecticut, have invented a certain new and useful Improvement in Revolving Fire-Arms, which improvement is fully set forth and described in the following specification, reference being had to the accompanying drawings.

My invention is in that class of revolving arms which have the barrel and frame sections hinged together, the several parts being so constructed and connected that the movement of the barrel as it swings forward forces the cartridgeejector outward until the empty shells drop from the cylinder. Said ejecting mechanism is then automatically released and returned to its closed position within the cylinder ready for reloading.

It is my purpose to improve the particular device which retains the so-called lifter or idler in a fixed position as the barrel is swung forward.

Referring to the drawings hereunto annexed, Figure 1 is a side view of a revolver having said improved device attached thereto. Fig. 2 shows side and rear views of the barrel detached. Fig. 3 is a detached View of thelifter a. Fig. 4 is a perspective view of the pawl, spring, and nut, which form the essential ele- Fig. 5 is a crosssection, considerably enlarged, of the hingejoint, taken on line x x of Fig. 1.

The letter Aindicates the frame of the arm, and B the barrel, each provided with hingeleaves and connected forward of the cylinder, as illustrated in Fig. 1. \Vithin the cylinder C is a suitable cartridge-ejector having the usual stem extending into the barrel and held forward normally by a spiral spring; but as these devices are well known in this class of arms, I have thought it unnecessary to show detailed drawings of them here. The barrelhinge is formed preferably with two leaves, which enter between corresponding leaves on theframe A, said barrel-leaves bei ng separated ad istancesufficienttoreceivetheliftera. This lifter is provided with an integral or fixed horn, b, to engage the end of the ejector-stem. The barrel, frame, and lifter,after being properly assembled, are held in place by a counterbored screw, 0, which forms the hinge-pivot.

(No model.)

Having brought the arm to the-construction described, it becomes necessary to provide a device which will lock together the frame and lifter, so that, as the barrel is swung forward, said lifter will check the ejector and cause it to throw out the empty shells. To do this I have provided a plate or disk, d, having two integral studs or projections, c c, the former of which passes through the connterbored screw 0, the latter reaching through a slot, h, in one leaf of the barrel, to engage a hole, z, in the lifter. Within the connterbored screw 1 place a spiral springJc, and then screw a nut, m, onto the stud e, the spring acting with a constant tendency to hold disk (1 within its seat in the hinge, and to force stud 6 forward into the lifter'hole t. (See Fig. 5.)

In order to automatically release the stud c (which is practically a pawl) from thelifterhole, I have formed an inclined or wedgeshaped projection, a, between studs e and e, and a corresponding projection, to, in the end of slot h. As the barrel swings forward, the incline n gradually approaches the incline a, and at the proper instant engages and forces it outward, thus withdrawing stud e from the lifter and allowing it (the lifter) to snap forward with the ejector-stem. As the barrel is swung rearward after loading to lock with the frame, spring again brings stud 6 into engagement with the lifter-hole 2'. When it is desired to open the arm without ejecting the cartridges, suitable pressure of afinger on not m will throw Stud 0 out of engagement with the lifter, said nut being within convenient reach of the forefinger of the left hand as the barrel is grasped in the customary and natural manner. In this respect my improved device is much more convenient than many of the partially-concealed pawls and latches heretofore used, and the form of my device is such that it may be easily and cheaply produced and assembled.

My device may be used without the inclined surfaces n and n, in which case the lifter is released at the proper time by pressure on nut m,- but I consider the construction here shown far preferable, as it works automatically.

Having thus described my invention, I claim as new and wish to secure by Letters Patent 1. In combination with a frame and barrel, hinged as. described, and a lifter locatedbe- ICO tween the hinge-leaves of the barrel, a pivotserew drilled centrally throughout its entire length, adapted to pass through said frame, barrel, and lifter to interlock said parts, the

5 longitudinally-movable spring-pressed stud e,

passing through said pivot-screw, having a plate, d, extending a considerable distance out- Ward from the center of the hinge, and formed with stud-e parallel with stud e, and of such 10 length that it may reach inward through the barrel-hinge to engage a perforation, i, in the said lifter, as herein described, and for the object specified.

2. In a revolver of the class referred to, in

15 combination with the frame and a barrel hav- .ively, the said perforation z and barrel-cam n,

as herein described,and for the object set forth.

JAMES BOLAND.

Witnesses:

FRANK H. ALLEN, TYLER J. HOWARD.