US177887A - Improvement in attaching springs of fire-arms - Google Patents

Description

W. A. RICHARDSON.

ATTACHING SPRING 0F FIRE-ARM.

Patented May 23,1876.

TQ-LITHOGRAPHER, wAsHlN WILLIAM A. RICHARDSON, OF WORCESTER, MASSACHUSETTS, ASSIGN OR OF ONE-HALF HIS RIGHT TO GILBERT H. HARRINGTON, OF SAME PLACE.

IMPROVEMENT IN ATTACHING SPRINGS OF FlRE-ARS.

Specification forming part of Letters Patent No. E77,8?, dated May 23, 1876; application filed April 11, 1876.

To all whom it may concern: from toward the rear portion of the frame, so Be it known that I, WILLIAM A. RIOHARD- that its front end will pass under the hammer- SON, of Worcester, in the county of Worcester pivot and bear against the dog carried by the and State of Massachusetts, have invented hammer and keep it engaged with the ratchet certain Improvements in Fire-Arms; and that of the cylinder. The spring is attached to the the following is a full, clear, and exact descripframe by inserting the arc-shaped portion 0 in tion of the same. the correspondingly-shaped recess a; and, in The first part of myinvention relates to the consequence of this are shape, the spring is springs employed in the lock mechanism of securely held in position and effectually prefire-arms; and it consists in a novel mode of vented from becoming displaced, either longiattaching a spring, whereby it is readily intudinally or upward and downwarthwhile the serted in place and securely held against disbottom of the groove or recess on one side and placement in any direction, without the use of the stock-plate on the other side prevent the a screw, rivet, or similar fastening, and may possibility of lateral displacement. be easilyremoved or replaced when necessary. If the spring should become broken, or its The first part of the invention is applicable removal for any reason should be desired, it 7 to any of the springs used in fire-arms, but is may be withdrawn from the recess by taking here shown as applied to the dog which gives off the stock-plate. motion to the cylinder. Iam aware that aspring has been attached The accompanying drawing illustrates a to a seat without a screw or rivet by means mode of carrying out my invention. .Figure of a dovetail projection fitting in a groove or 1 is a longitudinal sectional view of a portion notch of corresponding shape; but such mode ofa revolvingfirearm embodying myimprove- I of attachment necessitates a particular conments. Fig. 2 is a horizontal section taken in struction of the spring and involves more time, the line 00 00 of Fig. 1. Fig. 3 is a detail view labor, expense, and Waste of material than in of the dog. Fig. at is a detail View hereinafter my invention, in which the spring is of simple referred to. construction, and is only slightly changed in The frame A is of the usual or any suitable form, in order to provide for its attachment, construction, and the hammer B is hung in and this change is effected by bending, and the ordinary manner. In the lower part of does not involve either waste or addition of the frame A, in rear of the trigger-seat, is a material. recess, a, forming an arc of a circle. This re- What I claim as new, and desire to secure eess is made with a circular mill or other suitby Letters Patent, is able tool, by cutting into the metal of the As an improvement in the securing of frame in a direction parallel with the axis of springs in fire-arms, an arc-shaped recess in the hammer, so as to form an arc-shaped the frame, in combination with an arc-shaped groove, leaving above said groove a projectcurve in the spring, whereby the latter is seing piece of solid metal, 12, of segmental shape curely attached and heldin place, substantially in its cross-section. The spring C is made of as herein described.

an elastic steel strip or flattened wire, and is WM. A. RICHARDSON. straight, except near its rear end, where it is Witnesses: bent into an arc shape, corresponding with GEO. E. SMITH,

that of the recess a. The spring is inserted S. B. I. GODDARD.

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