US376014A - Making lock-spindles - Google Patents

Description

" (No Model.)

A. C. REX. Y MAKING LOCK sPmDLBs.` No. 376,014. Patented Jan. 3, 1888.

xm QE UNITED STATES PATENT EETCE.

ALFRED C. REX, OF'PHILADELPHIA, PENNSYLVANIA.

MAKING LOCK-.SPlN-DLES.

SPECIFICATION forming part'. of Letters Patent No. 376,014, dated January 3, 1888.,

l Application tiled October 15, 1886. Serial No. 216,322. (No model.)

To all whom t may concern,.-

' Be it known that I, ALFRED C. REX, acitizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in the Manufacture of Loek Spindles, of which the following is a specification.

My invention consistsv of an improvement in the manufacture of spindles for locks, my invention being more especially designed for the manufacture of spindles for the cheap combination-locks to be used in connection with toy safes and similar articles, although my invention may be applied to the manufacture of other spindles. f

In the accompanying drawings, Figure 1 is a vertical section of a toy-safe door and part of the frame, showing the manner in which lock-spindles constructed in accordance with my invention may be applied.v Fig. 2 isa detailed view, partly in section, of the working parts of thelock with the cover-plate removed. Fig. 3 is a perspective view of one of the notched wheels of .the lock, its spindle, and operat-ingdisk. Fig.4isa side view showing the manner of turning the groove in the end of the spindle. Fig. 5 is a side view of the spindle after the groove has'been turned in it, but before the end has been cut by the die; and Fig. 6 is a view illustrating the manner of cutting the polygonal end of the die. n

Referring to Fig. l, AA represent the 'walls of the safe, D the door, andEthe combinationlock, which is provided with a sliding locking-bolt, d, adapted to engage'with the jamb of the doorway or a keeper thereon. In the present instance I have shown the lock as provided with three notched wheels, awhich are adapted to act on the inner end of the bolt d against the pressure of a spring, d. The

outer Wheel is mounted on a spindle, F,which is passed through the door and provided on the outside with a suitable operating knob or disk, F. The spindles of the inner wheels are made tubular, so as to fit over each other and over the central spindlebelonging tothe outer wheel, as shownin Fig. 1. The portion of the spindle F on which the wheel is titted is made many-sided, as illustrated in Figs. 2 and 3, and the central open/ing of each wheel is made of a shape to correspond, so that the combination u of the lock can be readily changed atany time by simply removing the inside cover-plate of the lock, taking the wheels off their spindles and resetting them in other positions.

In order to construct these spindles with the least possible expense and yet with accuracy, I proceed in the following manner: After the spindle has been turned to the proper diame ter I out in each a circumferential groove, j', by means of anysuitable cutter, s, asindicated in Fig. 4. The spindle thus formed, Fig. 5, is then put under a die, R, Fig. 6,which cuts at o'ne operation the several sides on its end, these several sides corresponding with the many-sided opening cut by the punches and dies, as usual, in the corresponding wheel e. Owing to the presence of thegroovef immcdiately behind that portion ot' the spindle on which the straight sides are cut by the die, a good clearance is'aftorded for the metal in cutting, so that the sides are cnt clean and straight.

I claim as my invention- The mode herein described of making lockspindles with many-sided ends, said mode consisting in first cuttinga circumferential groove near the end of the spindle, and then cutting the straight sides on the end of the spindle beyond the said groove by means of a die, all substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ALFRED C. REX. Witnesses:

HARRY SMITH, HUBERT HoWsoN.

Images