US1050394A - Case-lock. - Google Patents

Description

B. S. ROYER.

CASE LOGK.

APPLICATION FILED JULY 26, 1912.

1,050,394. I PatentedJan. 14,1913.

IVITNESSES: 6 I NV5E1;0R.

/5 0 67 g g E// ATTORNEY.

ELLIS SANFORD ROYER, OF ST. LOUIS, MISSOURI.

CASE- LOCK.

Specification of Letters Patent.

Patented Jan. 14,1913.

Application filed July 26, 1912. Serial No. 711,711.

To all whom it may concern Be it known that I, ELLIS S. Home, citizen of the United States, residing at St. Louis, State of Missouri, have invented certain new and useful Improvements in Case- Locks, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention has relation to improvements in case-locks, and it consists in the novel details of construction more fully set forth in the specification and pointed out in the claims.

I In the drawings, Figure 1 is a front face of a. watch-case, with parts in section show ing one form of my invention applied thereto; Fig. 2 is a cross-section on the line 22 of Fig. 1; Fig. 3 is a cross-section on the line 3-3 of Fig. 1; Fig. t is a perspective of the locking lever detached; Fig. 5 is a view similar to Fig. 1 showing a modification of lock; and Fig. 6 is a cross-section on the line 6-6 of Fig. 5.

The present invention is an improvement on the ease-lock forming the subject-matter of my U. S. Patent, Number 9183M, dated April 18, 1909; and while contemplating the several objects and possessing the sev eral advantages inherent in the patented construction, the improvement herein is materially simplified over the patented one in particulars which make the last design the more desirable.

In detail the invention may be described as follows:

Referring to the drawings, and for the present to Figs. 1 to 4 inclusive, 1 represents the case center of a watch, 2 the front bezel, and 3 the rear bezel thereof, the said bezels being screwed to the center as well understood in the art. The winding stem 4 is provided with the usual milled head 5, said stem being of the reciprocating variety, adapted to wind the watch when pushed inward, and to set the hands when pulled outward, all as fully understood in the art. In the preferred embodiment of my invention I provide a curved lever 6 of thin rigid metal, through the fulcrum boss 7 of which I pass a screw-pin 8, the latter being driven through, and supported by, the flanges a, a. over which the sections 2, and 3, are screwed. In the groove formed bet-ween the flanges a, a, the lever 6 thus supported by a pin 8, rests, one end of the lever being forked, the

fork members d, (Z, spanning the narrow neck n formed between the inner terminal polyg onal end of the winding stem a, and the cylindrical portion contiguous thereto, the connection permitting an oscillation of the lever about its fulcrum'pin S with a longitudinal movement of the stem (see dotted posit-ion of the parts in Fig. 1). The opposite end of the lever 6 is provided with crossarms 9, 9, free to traverse a slot or groove 8 in the flanges a, a, the arms being adapted to rest, with an inward movement of the stem 4, in notches, depressions or recesses r, r, in the members 2 and 3 respectively.

The operation is apparent from the foregoing:-To unscrew the sections 2 and 3 from the sect-ion 1, the stem 4 is retracted (or pulled out to the position corresponding to that at which the stem is operated to set the hands of the watch) in which movement the lever 6 is oscillated about its fulcrum pin sufficiently to cause the locking arms 9, 9, to clear the depressions or recesses 1 1", thus freeing the sections 2, 3, from the arms and permitting them to be unscrewed from the center section 1. lVhen the sections are screwed back on the section 1, the recesses r, r, are brought into alinement with the slot- 8, and by pushing in the stem &, (to position for winding the watch or to normal position) the lever (3 is oscillated to force the arms-9, 9, into the recesses, and thus the sections 2, 3, are held locked.

In the form described, the oscillation of the lever 6 is done by hand, that is to say, it is not automatic; but I may so modify the construction as to eflect the locking of the sections 2, 3, automatically. This modification is shown in Figs. 5 and 6. In that case I secure (by means of a pin 12) a flexed spring member 10 of spring steel, the same being mounted between the flanges a, a, the said member or band being provided near one end with looking arms 11, 11, corresponding to the arms 9, 9, and terminating at the end adjacent the arms in a push pin 12, preferably near the boss 13 through which the stem 4t passes. The flexed band 10 normally tends to expand or straighten and hence when released forces the pushpin 12 (which operates freely through the center section 1) outwardly, the locking arms 11, 11, settling into recesses corresponding to r, r, in the form first described. In the modification, to release the sections 2, 3, the operator simply pushes in the pin 12 until the arms l1, 11, are disengaged from the sections 2, 3, holding the said pin in such position until the sections 2, and 3, are unscrewed. To lock the sections, the latter are screwed back on the center section 1, and when the recesses thereof come opposite the arms 11, 11, (the pin 12 having previously been released) the said arms automatically spring into their recesses under the resilient action of the steel band 10 whereupon the locking of the bezel sections becomes automatic. In either form however, the member (4, 12) is a push member, both releasing the bezel sections with a sliding movement of the member, the locking being accomplished by an inward movement of the member a, and the unlocking by an outward movement; and the unlocking be ing accomplished by an inward push of the member 12, the locking resulting automatically by an outward movement flowing from the spring of the metal of the band 10.

Having described my invention what I claim is 1. In a watch provided with a case-center, a bezel therefor, a locking member oscillating in the general plane of the watch and engaging the bezel, and a reciprocating pushmember moving in a plane substantially parallel to the plane of oscillation of the locking member and controlling said member.

2. In combination with a Watch casecenter, a reciprocating winding stem therefor, a screw-bezel, a lever pivotally mounted opposite the inner circumferential wall of the case center and having one end in engagement with the stem, whereby said lever may be oscillated, and means on the opposite end of the lever for engaging the bezel and locking the same against rotation by a movement of the stem in one direction.

3. In combination with a watch casecenter, a reciprocating winding stem there for, a screw-bezel, a lever pivotally mount ed in the case-center opposite the inner cir cumferential wall thereof, a fork terminal at one end of the lever, a neck formed in the body of the winding stem and engaged by the said forked end of the lever, a locking arm at the opposite end of the lever projecting outwardly from the body of the lever, the case-center being provided with a slot for the traverse of said arm with an oscillating movement of the lever, and the bezel having a recess adapted to be brtmght opposite said slot for engagement with the locking arm upon a movement of the winding stem to oscillate the lever in proper direction to effect such engagement.

at. In combination with a case-center, a screw-bezel therefor, a locking member 0 cillating in the general plane of the watch and engaging the screw-bezel, and a reciprocating push member on the case center moving in substantially the same plane and controlling said locking member.

In testimony whereof I afiix my signature, in presence of two witnesses.

ELLIS SANFORD ROYEIK.

Vitnesses EMIL STAREK, Jos. A. Micnnt.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C.

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