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Патент USA US2119436

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May 31, 1938.
M, LAUFF f
2,119,436
‘WRIST WATCH' BRACELET
Filed July 2, 1936
PIC-3.5,
‘
INVENTOR
‘
’ ?ZYAX LAUFF
M
ATTORNEY
4
Patented May 31, 1938
2,119,436
UNITED STATES PATENT OFFICE
2,119,436
WRIST WATCH BRACELET
Max Lauff}, Detroit, Mich.
Application July 2, 1936, Serial No. 88,629
2 Claims.
The present invention pertains to a novel wrist
watch bracelet of such construction and design
as to be equally appropriate for men, women and
children.
The principal object of the invention is to pro
vide an inexpensive watch bracelet having an
attractive appearance and desirable qualities as
to strength, durability, ?exibility, and adjust
ability. The bracelet comprises several parallel
strands and each strand consists of hollow balls
or beads united by headed wire links. This type
of chain may be manufactured very cheaply by
production processes. Although having consider
able strength, the wire links may be readily cut
15 to adjust the chain to the desired length.
Novel
effects may be obtained in the plating of the
chain and in various arrangements of the strands.
The invention further includes anchoring de
20
vices for the ends of the chain. These are in.
the nature of simple stampings having no mov
able parts and designed to hold the ends of the
chains by friction. Consequently, the ends are
readily inserted but do not become released acci
dentally, inasmuch as some degree of force is
25 necessary to remove them.
30 one of the strands;
Figure 2 is a plan view of one of the anchoring
devices, showing also the ends of the chain re
ceived therein;
-
Figure 3 is a section on the line 3—3 of Fig
35 ure 1;
Figure 4 is a section on the line 4——4 of Fig
ure 2, and
Figure 5 is a plan view of a wrist watch
equipped with a bracelet according to the in
40 vention.
Reference to these views will now be made by
use of like characters that are employed to desig
nate corresponding parts throughout.
In Figures 1 and 3 is illustrated the chain from
which the watch bracelet is made.
The chain
consists of hollow balls I joined together by inter
vening solid links 2. The assembly is made by
means of suitable machinery, and in connection
therewith, each of the balls is apertured at dia
metrically opposite points as indicated by the
numeral 3.
eight times actual size, but the balls may be as
small as T16 inch in diameter.
The bracelet consists of several parallel chains
as shown in Figures 2 and 5, and the ends of Cl
the chains are held in locking or anchoring de
vices as illustrated in Figures 2 and 4. Each
such anchoring device consists of a stamping
shaped to form a number of parallel troughs 6
equal in number to the chains or strands used 10
in assembling the strap or bracelet. Adjacent
troughs are de?ned or separated by means of
inward ridges 1 formed in the metal. At one end
of the troughs, the stamping is fastened to the
watch case or to a part of the clasp, as will pres
15
ently app-ear. At the other end, the outer side
walls of the outer troughs are bent over or partly
across these troughs in the form of cheeks 8.
Further, the metal at the unattached end of the
stamping is also bent over in the form of checks 20
9 twice as large as the cheeks 8, each of the
cheeks 9 extending partly across and along to
adjacent troughs.
The cheeks 8 and 9 are of spherical con?gura
tion for a purpose presently to be described.
The invention is fully disclosed by way of ex
ample in the following description and in the
accompanying drawing in which
Figure l is an elevation, partly in section, of
The links 2 consist of Wire stock and
are headed at 4 within the balls I .
(Cl. 63—4)
shown in Figures 1, 2, 3, and 4 are approximately
The heads are
also rounded at 5 to facilitate swinging of the
links relatively to the balls and thereby increas
55 ing the ?exibility of the chain. The parts as
The intervening space I0 between them is slightly
less in width than the diameter of the links 2.
As previously indicated, stampings of the char
acter described are attached to opposite sides of
the watch case H as indicated by the numeral 30
I2 in Figure 5. One of the end balls of each
chain is retained in each of the troughs 6. For
the purpose of assembly in this manner, the
cheeks 8 and 9 are spaced from the attached end
of the stamping a distance at least equal to the 35
diameter of the balls I to permit insertion of the
balls in the troughs and beneath the cheeks.
The end balls must be pulled under the cheeks
with a small amount of force, inasmuch as the
checks are spaced from the bottoms of the
troughs a distance slightly less than diameter
of the balls. Consequently, the balls are held
under the cheeks by pressure of the cheeks
therein.
As'shown in Figure 2, each of the spaces l0
widens at its ends as indicated by the numeral
13. Consequently, the links 2 are readily in
serted in one end of a space Ill and accommodated
in the other end, but are prevented from return
ing to the intermediate part of the’ space in the -
event that the adjacent ball turns in the anchor
ing device.
'The remaining end balls of the chains are re
ceived in similar anchors l4 and I5 to which are
attached the complementary clasp elements It;
2..
2,119,436
and IT. The attached end of each of the an
choring devices is preferably curled at I8 around
leased because of the force required to remove
them. It will be understood however, that, in
a stem l9 comprised in the Watch case II and p so far as the novel chain is concerned, other types
of anchoring devices may be used;
,
- the clasp elements I6, 11.
Although a speci?c embodiment of the'inven
A watch bracelet constructed in the manner
great strength and ?exibility and yet is in
capable of stretching. It is readily reduced to
tion has been illustrated and described, it will be
understood that various alterations in the [details
of construction may be made without departing
size merely by cutting off the required number of
from the'scope of the invention, as indicated by ‘ . V
described has numerous advantages.
10 beads.
It possesses
In this connection, the chain must ini
tially have-at least therequired length, and can
be easily cut inasmuch as the links 2, consistof
10
the appended claims.
What I claim is:
1. A bracelet comprising a beaded chain, a '
comparatively thin wire. Great ?exibility is
made possible by the swivel movement of the
stamped metal vend anchor shaped to form. a
trough with spaced cheeks overlying the same, the
15 rounded heads 4 within the balls I. ' Adjustments
can be made within a ?ne range becauseof the
'end bead being received on the bottom of said
small diameter of the beads.
The chain may be plated with any desired metal
‘or adjacent strands may be plated with different
20 metals for design effects. Further, the appear
ance may again be modi?ed by staggeringthe
beads of adjacent strands.
As distinguished from other metal or link type
exerting spring pressure on said bead against said
watch bracelets, the device of the present inven
tion does not catch or pull the hair owing to the
spherical shape of they members I and the re
moteness of the apertures 3 from the skin. For
the same reason, there is no pinching of the skin.
With regard to the anchoring devices, these
30 are inexpensively manufactured by a stamping
process and are not complicated by moving parts.
The end balls are readily inserted therein and
held frictionally, but cannot be accidentally re
trough and beneath said’ cheeks, said cheeks
bottom.
‘
2. A bracelet for a Wrist Watch or the like com
prising spaced hollow beads apertured at di
ametrically opposite points, wire links disposed
20
between said beads, each link extending into two
of said apertures, a stamped metal end anchor
shaped to form a trough with spaced cheeks
overlying the bottom of the trough, the end bead 25
being received on the bottom of said trough and
beneathsaid cheeks, said cheeks exerting spring
pressure on said bead against said bottom, the
intermediate part of the space between 7. said
cheeks being narrower than the diameter of said 30
links.
"
‘
MAX LAUFF.
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