US1749036A - Extension device - Google Patents

Description

March 4, 1930. J.- N. KUEHNE nxmsxou nmnca Filed Aug. 5, 192'! 2 Sheets-Sheet 1 IN! 'EN TOR.

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' MM Mar. 4, 1930 UNITED. STATES :rosnrz u. wanna, or uneven, xzmrucxy, assrenoa r THE wanswomn wa'ron' oasn coxrm, or narrow, xamucxr, a coaromrzon or maroon immersion nnvxon Application filed August 5, 1987. Serial 10'. 810,860.

This invention relates to certainnew and v useful improvements in wrist watch. straps and more particularly to improved means for enabling the band to be lengthened so as to permit it to be removed from the wearers wrist over the hand without disconnecting the ends of said straps. v

A further ob'ect of the invention is to provide means or enablin the band to be easily and quickl adjuste as m length so as to fit wrists 0 different sizes and to also enable the wearer to make such ad'ustment without removing the band from t e wrist. A still further object of the invention is to provide novel meansfor lockingthe lengthemng means when in closed pos1t1on about the wearers wrist.

With the above and other objects in view the invention consists in the construction combination, location and arrangement of parts as herein set forth and claimed.

In the drawings: I v Fig. 1 is a side elevation of the inventlon shown in closed osition and attached to a 5 watch case, the atterbeing lllustrated by dotted lines;

Fi 2 is a view similar to Fig. 1 but showing t e invention in open or enlarged POSI- tion;

Fig. 3 is abottom view of Fig. 1;

Fi 4 is a partial .view of one of the band mem ers;

Fi 5 is a partial view of the otherband mem er; 1

Fig. 6' is a planjview of the lock slide;

Fig. 7 is an edge view thereof;

Fig. 8 is a vertical cross-section taken on a plane corresponding to line 88 of Fig. 1;

ig. 9 is a diagrammatic isometric view of SCll tion proceeds.

the invention shown in open position;

Fig. 10 isa vertical cross-section taken on a plane corresponding to line 1010 of Fig. 9;.

Fig. 11 is a view similar to Fig. 1, the watch case being omitted and the lengthening device shown partially opened; 7

Fig. 12 is a ,plan view of the invention shown in open position, the parts being broken away to more clearly ilustrate the invention;

Fig. 13 is a longitudinal section taken on a plane corresponding to line 1313 of tion of the folding section showing the lock in open position; and

Flg. 15 is a similar view showing the lock in closed position.

In the embodiment of my invention as,

illustrated and which shows a preferred construction I provide metal bands 1 and 2,

preferably fiat, the outer ends of which bands terminate in tubular portions 3 and 4, respectively, which extend between the usual lugs 5 dls osed' at the ends of usual watch case 6 an receive the usual pins or bars 7 thereby suitably attaching the outer ends of said bands 1 and 2, res ectively, to the watch case 6 in the usual an .The inner ends of bands 1 and 2 are spacedly connected by a connector composed of rectangular slotted curved housing 8 and open .frame or skeleton curved link 9 hinged towell-known manner.-

gether by pivot pin 10. The inner end of band 2 terminates in ,tubular portion 2 which extends between the curved arms 11 of open frame or skeleton link 9 and is pivotally connected to said link as by pin 12 passing therethrough and secured to saidvarms. The inner end of band 1 is provided with longitudinal spaced apart cuts'or slots 1, as clearly shown in Fig. 5, thus terminating the end in three parts, 1*, 2", and 3", respectively. The end portion of art 3", is bent at right angles to the faces of and 1, thereby forming holding lip 3. The parts 1 and 2", respectively,

are bent slightlyaway from art 3", thereby forming spring members, t e purpose of which will be more fully described as the de ousing 8 comprises sides 8", top 8 and bottom portions 8", the latter bein spaced apart from said and from 6.151 other. The bottom portions 8 of housing 8 are provided with a series of spaced apart opposites ly disposed slots 8, so as to enable the inner end of band 1 to be adjustably connected within housing 8, as by lip 3 thereon engaging any set of said slots 8", at various points along the length of said housing. The top 8" of housing 8 extends beyond the bottom ortions 8 and is bent inwardly to form tuular portion 8, which tubular portion receives the pin 10 as before described. Two

pairs of o positely dis osed slots 13 and 14 respective y, are cut in ottom portions 8, of

housing 8 (near tubular portion 8f, as shown in Fig. 9) and are adapted to receive lockin lip 15 integral with one end of combine keeper and lock 16. The opposite end of lock 16 is provided with integral curved hook 17 which terminates in fin er-catch 18. 'The central portion of lock 16 is slotted, thereb forming elon ated openin 19, within whic opening holding lip 3 of and 1 is inserted, as clearl shown in Figs. 12 and 13, respectively. he curved arms 11 are substantially L-sha ed in cross section to form inwardly extending ledges 8, (see Fig. 9); thus the housing 8 will snugly fit between the wider portions of said arms and the band 2 will snugly fit between said ledges 8 or the narrower portions of said arms, therebyeliminating any gap or space between said band 2 and curved arms 11 when the band is closed, as shown in Fig. 3.

The operation of my invention is as follows:

Assume that the band is about the wearers wrist in closed position, as shown in Fig. 1, with the keeper and lock 16 in closed position. To expand or lengthen the band so that the same can be removed from the wrist without disconnecting the bands 1 and 2 from eachv other or from the watch, simply grasp finger catch 18 and draw outwardly thereon to the position shown by dotted lines in Fig. 1, thereby disengaging locking lip 15 from within the pair of slots 14 and engaging said lip within the pair of slots 13. The housing 8 and link 9 may then be swung apart about pivot pin 10, as clearly shown in Figs. 2 and 11, thus expanding or lengthening the band opening A, as shown in Fig. 1, to an enlarged o ening B, as shown in Fig. 2, thereby enabhng the band to be easily removed from the wrist over the hand.

Should it be desired to reduce the size of opening A when the band is in closed position, it is merely necessary to swing the housing 8 and link 9 apart, as above described, then with the thumb nail disengage holding lip 3 from its present pair of slots 8 by pressing downwardly thereon and sliding and 1 forward within housing 8 thereby bringing said'holding lip 3 nearer the end of housing 8 toward carrying pin 10,'which shortens the band 1 between said housing 8 and tubular portion 3. The spring members 1 and2 firmly hold lip 3 of band 1 within any selected pair of slots 8. When the housing 8 and link 9, respectively, are in the positlon shown in Fig. 11 and the lock 16 is positioned so that lip 15 is engaged within slots 13, by nesting said housing 8 within on finger catch 18 until locking lip 15 is disengaged from within slots 13 and snaps into, slots 14 at which time curved hook 17 snu 1y engages the outer periphery of said tubular portion 2 of band 2' (see Fig. 15), thus securely locking said housing 8 within said link An advantage of this invention is that the link 9 being of skeleton construction, and nesting slotted housing 8 and band 2 therein when the parts are in folded relation, reduces to a minimum the thickness of said members when in closed position and thus forms a very compact construction.

A further advantage of m invention is the ease with which the ban 1 can be ad- 'usted to various desired points along the ength of slotted housing 8.

While I have shown a preferred construction, it is to be understood that certain chan es and modifications of the invention can e made without departing from the scope or spirit thereof as defined in the claims.

What I claim as new and desire to secure by Letters Patent is:

1. In means of the character described, a pair of bands, a folding section disposed between the inner end of each of said bands comprising a link and a housing, said housing having inturned spaced apart flanges provided with a series of pairs of spaced apart slots and hingedly" connected to said link at their inner ends, the inner end of one of said'bands bein hingedly attached to the outer end of said link, the inner end of the other band having an upturned lip adapted for engagement within a selected pair of said spaced apart slots in said housing for longitudinal adjustment of said last mentioned band relative to said housing, and locking means for holding said housing in nested relation with said link.

- 2. The pair of bands, housing and link as specified in claim 1, wherein the locking means comprises an elongated slotted keeper and lock havin a hook and finger-catch on one end and adapted to fit over one of said bands within said housing, and having a lip on its other end adapted to engage a pair of slots in said housing.

3. In means of the character described. a pair of bands, folding sections disposed between the inner ends of said bands com rising a rectan lar shaped housing an an open frame pivotally attached to each other at their inner ends, a plurality of spaced apart oppositely-disposed slots in said housing, the mner end 0 one of said bands having an upturned lip and spring members thereon to automatically engage said lip in said slots and adapted to be telescopically received b said. housing, the inner end of the other and being hin edly attached to the outer end of said open ame, and a combined'keep'er and lock inserted within said housing and adapted to securely lock said housing within said open frame when dehousing may be detachably held in such comsired. l

4. In means. of the character described, folding sections disposed between the spaced apart inner ends of bands and comprising a housing and an open frame hingedly connected to each other at their inner ends said housing being provided with a series of spaced apart oppositely disposed slots, means for hingedly connecting the inner end of one of said bands to the outer end of said open frame, means for adjustably connecting an end of the other band within said housing, comprising an upturned lip integral with said last mentioned band, and adapted for insertion within a selected pair of said slots in said housing, and means for locking said housing in nested relation with said open frame.

5. In means ,of. the character described, a pair of bands, folding sections disposed between the inner ends of said bands and comprising ahousing and a frame hinged together, one of said bands being telescopically i received within and adjustably secured to in nested relation with said said housing and the,other of said hands being hingedly connected'to said frame and longitudinally slidable means in and relaframe. 6. In means of the character described, a

- link having an inwardly extended ledge on each inner side adjacent one edge thereof, a

housing pivoted to said link and adapted to telescopically receive and hold in adjusted -position one endof a metal band and said link being pivotally connected withone-end of another'metal band whereby said housing ma be folded into nested relation with said 1i and'the pivoted end portion ofsaid band may be also nested within said link between said ledges whereby a very compact folded construction is secured, and longitudinally slidablemeans in and relative to said housing for locking said members in folded relation. 7. In means of the character described, a

housing adapted to telescopically receive and hold in adjusted position, one end of a metal band, a link pivotally connected to saidhousing and to one end of another metal band w e band, a link pivotally connected to said housing and to one end of another metal band whereby said link may' be folded into comact relation withsaid housing, and a slotted eeper having a hook'on its outer end adapted to slidably engage said link and a holding lip on its inner end adaptedto' adjustably engage said housing whereby said link and pact relation.

housing having one longitudinally slotted walland having oppositely disposed slots in the edges of said slotted wall, a metal band folded 'over said housing and held thereover' by said-keeper, for the urposes specified. V 1Q. In means of the c aracter described,"a

In means of the character described, a

housing adapted to telescopically receive one end of. a band having an integrally formed lip and spring members, an open frame or link hinged to said housing and to one end of another band, locking means for holding said housing in nested relation with said *open frame, comprising an elongated body portion, one end of which is provided with a lip adapted to engage a pair of spaced apart slots in said housing and the other end of said locking member terminating in an outwardly curved hook and finger catch, a second pair of slots in said housing adapted to engage said lip' of said locking member when said member. is in locked position and a plurality of spaced apart slots in said housing whereby said telesco ing band may be adjustably held in said ousing.

.11 In means of the character described, a

housing and aframe hinged together, a band havin one end thereof pivotally attached, to said ame and another band telescopically received within and adjustably secured to said housing, and longitudinal slidable means in and relative to said housing for Y locking said housing in nested relation with said frame.

reb said link may be folded into com pactre ation with said housing1 and longitudinally slidable means in an relative to said housing for locking said link and housing in such compact relation.

8. In means of the character housing adapted to telescopically receive and hold in adjusted position one end ofa metal described, a:

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