US2003781A - Pendant for watches and the like - Google Patents

Description

' June 4, 1935.

L. L. BURGHOFF PENDANT FOR WATCHES AND THE LIKE Filed Jan. 30, 1934 Patented June 4, 1935 UNITED STATES PATENT OFFICE Louis L. Burghcff, Bristol, Comp, assignor to The E. Ingraham Company, Bristol, Conn, a corparation Application January 30, l 34, Serial No. 708,937

5 Claims.

This invention relates to improvement in pendants and particularly to pendants for watch cases and the like.

One of the objects of the present invention is to'provide a superior pendant construction characterized by strength and economy of manufacture and assembly.

Another object is to provide a superior pendant construction whereby the crown of the watch may be mounted close to the case.

A further object is to provide a pendant construction wherein the exposed portion of the pendant-head makes a neat junction with the exterior surface of the case from which it offsets.

Other objects and advantages will appear to those skilled in the art from the following, considered in conjunction with the accompanying drawing and the appended claims.

In the accompanying drawing:

Fig. l is a face view of a watch equipped with a pendant feature in accordance with the present invention;

Fig. 2 is a face view of the center-band of such a watch stripped, save for the pendanthead bow;

Fig. 3 is a broken view in transverse section taken on the line 3-3 of Fig. 2;

Fig. 4 is a similar sectional view but taken in a central plane paralleling the plane of the center-band;

Fig. 5 is a broken view in horizontal section taken on the line 55 of Fig. 2;

Fig. 6 is a broken edge view of the center-band looking toward the head-passage therein;

Fig. 7 is a perspective view of the pendanthead detached; and

Fig. 8 is a similar view of a piece of extruded bar-stock from which the pendant-heads may be formed.

As illustrative of the present invention, the pendant-head feature is embodied in a watch having the usual case-member or center-band H! of outwardly-bowed form in cross-section and having the usual annular snap-shoulders ii and I2 for the reception respectively of a bezel-ring l3 and a backplate (not shown), in accordance with the usual practice in the watch art.

At the desired point upon its periphery, th center-band l above referred to is perforate. to form a head-receiving passage [4 leading outwardly therethrough and preferably of polygonal or other non-circular form, as shown especially well in Fig. 6.

Extending outwardly through the head-receiving-passage M is a pendant-head having a horizontal sectional form corresponding to the form of head-r eceiving-passage M in the center-band SE. Offsetting from each of the respective opposite ends of the pendant-head is a stop -lug or abutment adapted to engage the 5 inner surface of the centerband adjacent the lESf-SCJlVS opposite ends of the passage is therein to limit the outward movement of the pendant-head, as will be more fully hereinafter explained.

The pendant-head i5 is provided with a central stein-receiving passage il in the usual manher of watch-pendants and is also provided in each of its respective opposite end walls with a socket is having its axis extending at a right angle to the axis of the stem-receiving passage ll before referred to.

Pivotally mounted upon the pendant-head I5 is a bow H! of any approved pattern and having each of its respective opposite ends cylindrically shaped to form a trunnion 20 for entry into one of the sockets 18 of the pendant-head l5. As shown in Fig. 1, a knurled crown 2| is mounted in the space enclosed by the bow IS.

The pendant-head may be formed in a wide 5 variety of ways, but it has been found most economical to employ a bar such as 22, shown in Fig. 8, which may be readily produced by an extruding operation and has a cross-sectional form corresponding to the horizontal sectional form of the desired pendant-head at a point which will include the stop-lugs IS. The end of such a bar may be first drilled lengthwise to provide the stem-receiving passage I! and notched at its respective opposite ends to provide the stop-lugs l6 and further laterally drilled in the said notches to provide the sockets it. The bar may now be severed along the dotted line 23 indicated in Fig. 8, to thus provide a pendant-head ready for installation in the center-band 0.

The installation of the pendant-head is effected by installing the same from the inside of the center-band ill and projecting its smaller end outwardly through the head-receiving passage M in the said center-band until the oilsetting stop-lugs or abutments l6 engage with the inner surface of the center-band adjacent the non-circular head-receiving-passage I 4 therein. The bow l9 may now have its complementary trunnions 29-20 installed in the complementary sockets l8-l8 of the pendant-head and will serve in such position to prevent, if desired, the pendant-head from falling inwardly into the interior of the center-band l0. Preferably, however, the pendant-head is secured in place by applying solder to the assembly, as indicated at 24.

When installed in place, the offsetting stoplugs or abutments It serve to effectively resist the normal strains upon the pendant-head tending to draw the same outwardly, and the noncircular shape of the projecting portion of the pendant-head, closely fitting, as it does, the passage it, serves to hold said pendant-head against turning with respect to the centerband It.

As before pointed out, the pendant-head is shaped to snugly fit the head-receiving-passage [4 in the center-band W of the case-member and when installed in place the junction-point between the said pendant-head and the centerband is of neat and workmanlike appearance and gives the impression that the pendant-head is carefully shaped upon its under side to conform to the doubly-curved outer surface of the center-band ill. Furthermore, by means of the present invention, it is unnecessary to perform any delicate and difficult riveting operations from the interior of the center-band in order to insure the firm anchoring of the pendanthead thereto.

The invention may be carried out in other specific Ways than those herein set forth without to pass through'and project outwardly from the head-receiving passage in the said case-member beyond the outer surface of the latter and having preformedlaterally-offsetting abutmentmeans engageable with the inner surface of the said case-member to stop the outward movement of the pendant-head through the saidheadreceiving passage when the pendant-head is assembled with the said case-member by being passed outwardly from the inner end of the said head-receiving passage therein; the said pendant-head having complementary bow-receiving sockets formed directly in the sides of its projecting portion; and a bow having portions entered directly into the bow-receiving sockets of the pendant-head.

2. The combination with a case-member having a head-receiving passage of non-circular form opening therethrough; of a pendant-head substantially corresponding cross-sectional form to the non-circular form of the said headreoeiving passage in the said case-member and installed therein so as to project beyond the outer surface of the said case-member and having preformed laterally-offsetting abutmentmeans engageable with the inner surface of the said case-member to stop the outward movement of the pendant-head through the said head-receiving passage.

3. The combination with a case-member having a head-receiving passage of non-circular oblong form opening therethrough; of a pendant-head substantially corresponding in crosssectional form to the non-circular oblong form of thesaid head-receiving passage in the said casemember and installed therein so as to project beyond the outer surface of the said case-member and having preformed laterally-offsetting abutment-means engageable with the inner surface of the said case-member to stop the outward movement of the said pendant-head through the said head-receiving passage.

4. The combination with a case-member having a head-receiving passage of non-circular oblong form opening therethrough; or" a pendant-head substantially corresponding in crosssectional form to the oblong non-circular form of the said head-receiving passage in the said case-member and installed therein from the inner face of the said case-member so as to project beyond the outer surface thereof and having at each of its respective opposite ends a preformed laterally-offsetting abutment-shoulder engageable with the inner surface of the said case-member to stop the outward movement of the pendant-head through the said head-receiving passage.

5. In a watch-case, the combination with the center-band thereof having ;a head-receiving passage of non-circular form opening therethrough{ of a pendant-head substantially corresponding in cross-sectional form to the noncircular form of the said head-receiving passage in the said center-band and installed therein so as to project beyond the outer surface ofthe latter and having preformed laterally-offsetting abutment-means engageable with the inner surface of the said center-band to stop the outward movement of the pendant-head through the said non-circular head-receiving passage therein.

LOUIS L. BURGHOFF.

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