US2542284A

US2542284A - Watch bracelet

Info

Publication number: US2542284A
Application number: US576935A
Authority: US
Inventors: Charles I Matson
Original assignee: Individual
Current assignee: Individual
Priority date: 1945-02-09
Filing date: 1945-02-09
Publication date: 1951-02-20
Anticipated expiration: 1968-02-20

Description

Feb., 20, 1951 C, l, MA1-SON 2,542,284

WATCH BRACELET Filed Feb. 9, 1945 Charles I. fson IN VEN TOR.

Myinvention relates to'bracelets employed for n theretention of wrist watchesand4 more particularly to bracelets of the coil spring type, and one object of the invention is to provide a bracelet of this kind which cannot be stretched beyond a given limit, preventing the excessive expansion or loosening of the spring.

A further object of the invention is to provide a bracelet of the above character in which a series of external blocks provide a passage and housing for the spring, whereby to keep the latter from rubbing or pinching the skin or pulling hairs which enter the bracelet.

Another object of the invention is to provide simple and effective means to keep the blocks referred to sufliciently separated to prevent hairs from becoming caught therebetween and pulled on the movement of the bracelet.

An important object of the invention is to construct the improved bracelet along lines of simplicity, compactness and beauty.

With the above objects in view and any others which may suggest themselves from the description to follow, a better understanding of the invention may be had by reference to the accompanying drawing, in which- Fig. 1 is a plan view of the bracelet as attached to a Wrist watch;

Fig. 2 is a cross-section of the bracelet as constructed with an oval-coil spring;

Fig. 3 is a View similar to Fig. 2, showing the bracelet constructed with a round-coil spring;

Fig. 4 is an enlarged longitudinal section of a portion of the bracelet where it connects with the wrist watch; and

Fig. 5 is a section on the line 5--5 of Fig. 4.

Referring specically to the drawing, it is noted that the bracelet is basically in the form of a coil spring I9, whose coils may be ovalas indicated in Fig. 2-or circular-as shown in Fig. 3.

Figs. 4 and 5 show that the end coils of the spring I are tightly driven into a socket I serving as a coupling with one side of the watch I2. Usually. this type of coupling terminates with a cross-tube I 3 through which passes a pintle I4 carried by side lugs I5 of the watch.

Two sockets of the above character are applied endwiseI of the spring; and the latter receives a series of blocks I6 between the sockets. As shown in Figs. 2 and 3, these are of solid construction and substantially nat form to lie closely around the wrist. They thus keep the spring IIJ raised from the skin, relieving the latter from chang, the trapping of hairs between the spring coils and the pulling of the hairs when the bracelet of the wrist.

moves in onel or another direction. "..Tln'e' blocks arelof highlylpolished'm'etal or plastic material, soith'at contact"thereofwith the'skin or haiiis smooth and harmless. In fact, the blocks are convex on the top and bottom, so as to be both compact and maintain a limited amount of contact with the skin or hair; and they are freely movable along the spring Il] like beads on a gut string, whereby to easily adjust themselves to the form or curvature of the wrist. Further, the blocks are extended from one or both ends with tapered pins I'I forming end-spacers for the blocks. Thus, these cannot close at any point to pinch the skin or hairs and cause the pulling of the latter when the bracelet moves. Figs. 4 and 5 show that the pins I1 are extended from the blocks at points on opposite sides of the chain Ill and substantially even with one of the flattened block surfaces.

While the spring IU is designed to expand to a sulicient degree for comfort when the watch is worn on the wrist, it is advisable to check the spring against over-expansion, so that it may not remain or become distended and t too loosely around the wrist. Means for this purpose are provided in the improved bracelet in the form of a chain I8 which extends along the inside of the spring I0. The ends of the chain are linked to cross-pins IS; and each cross-pin seats with its end portions in alined slots 20 made in the outer end of a tube 2 I. As shown in Figs. 4 and 5, this tube is driven into the corresponding end of the spring I0 to a, point where the chain IB will lie loose or limp in the spring. The end portions of the spring are then driven into the corresponding sockets I I as previously explained, completing the assembly of the bracelet with the watch.

It is now apparent that influences to unduly expand the spring IIl will cause the chain I8 to be pulled endwise by the sockets II to a taut limit, which will prevent the excessive expansion of the spring.

It will be evident from the above description that the improvement of the spring bracelet by means of the external blocks presents a series of smooth and broad surfaces for contact with the skin, and renders the bracelet very comfortable. Further, the freely movable or slidable blocks easily adjust themselves to the form or curvature Further, the blocks present a polished and attractive appearance. Further, the bracelet is positively protected against undue expansion and loosening, while the skin and lil-airs are' protected against pinching and pulling.

Yfrom itsiprinciple, and I desire to consider such Vchangesand refinements as coming within the scope and spirit of the appended claims. I claim;`

ch bracelet of coil spring form, a series rung on the spring, and pins extended block to meet the next and form a ise between them. n 1 tructure of claim 1, said blocks' being o present broad outward and inward when the bracelet is worn on the wrist, and saidfipins being extended at points on opposite sides of the spring near the of the blocks.

3. Thestructure of claim 1, said blocks being attened to present broad outward and inward narrow sides 20 surfaces when the bracelet is worn on the wrist, and said pins being extended at points on opposite sides of the spring Vand substantially even with one of said surfaces.

CHARLES I. MATSON.

REFERENCES CITED The following referencesV are of record in the m tile of this patent:

UNITED STATES PATENTS Number Name Date A407,566 Ballon July 23, 1889 810,336 Y Higgins Jan. 16, 1906 1,047,491 Bliss Dec. 17, 1912 1,173,427 Heyman Feb. 29, 1916 1,647,060 Speidel Oct. 25, 1927 1,694,703 Doppenschmitt Dec. 11, 1928 FOREIGN PATENTS Number Country Date .i

27,427 Switzerland Jan. 24, 1903