US1966963A - Sliding clasp fastening - Google Patents

Description

y 1934- K. R. JORDAN 1,966,963

SLIDING CLASP FASTENING Filed June 1. 1932 Patented July 17, 1934 UNITED STATES SLIDING CLASP FASTENING Kurt Robert Jordan, Ludenscheid, Germany Application June 1, 1932, Serial No. 614,723 In Germany February 6, 1932 Claims, (Cl. 24205) I have filed applications in Germany on the 6th February, 1932 and in Great Britain on the 29th April, 1932.

The present invention relates to sliding clasp i5 fastenings, and more particularly to a locking device for securing fastenings of this kind in such a manner as to avoid the possibility of accidental opening and in certain circumstances also of opening by unauthorized persons.

The locking device according to theinvention consists essentially in a lock, preferably of the kind employed in brief cases and the like, which can only be opened by means of a key and is fixed to one stringer of the sliding clasp fastening immediately adjacent to the interlocking members of the fastening, and a locking member which'is fastened to the other stringer of the fastening in such a manner as to engage, when the sliding clasp fastening is in the closed position, with the lock provided 'on the other stringer of the fastening. The lock and the locking member are preferably mounted each on a supporting member fixed to the corresponding stringer of the sliding clasp fastening. The ends of these supporting members which are nearest the interlocking members of the fastening are constructed in such a manner that the slider serving for the operation of the fastening can be slidthereon thereby drawing the two supporting members towards one another and guiding the locking member forcibly into the lock.

Locking devices for sliding clasp fastenings are already known but the device according to the present invention provides the advantage over the known devices that it can be added subsequently to existing sliding clasp fastenings.

The accompanying drawing illustrates by way of example a constructional form of the device according to the invention, and in particular:

49 Fig. l is a plan of a sliding clasp fastening with the locking device in the locked position,

Fig. 2 is a plan of the sliding clasp fastening in a half open position, and

Fig. 3 is a section through the locking device.

Referring to the drawing, the reference letters A and B denote the two stringers, of the sliding clasp fastening, which are reinforced on their adjacent edges and provided with interlocking members. Adjacent to the interlocking members on each stringer are provided supporting plates a and 0 respectively. These supporting plates are preferably constructed of U-shaped cross section so that they can he slid on to the reinforced edges of the stringers and clamped in position. The supporting plates are tapered at their ends 1 hit nearest the interlocking members of the fastening in such a manner that'the slider e which .serves for the operation of the sliding clasp fastening can slide thereon. On the one supporting plate 0 is mounted a lock d, of the kind employed so for brief cases and the like and which can only be opened by means of a key, whilst the other supporting plate a carries a catch or eyelet b. This catch or eyelet b is arranged on the supporting plate a in such a manner that it engages in 5 the lock d when the two plates a and c are broughttogether. The catch is held fast in the lock d in known manner by means of a spring bolt, which can be drawn back so as to release the catch b when the lock is in the open position, by means 7 of a knob 1' provided on the outside of the lock d. On the other hand the bolt of the lock may also be locked in the position in which it holds the catch b by means of a key introduced into a keyhole provided in the lock it, so that the catch b cannot be released from the lock (1 by unauthorized persons. Since locks of this kind are known in the most varied forms, it has been thought unnecessary to show in detail the interior of the lock d. According to the kind of lock employed, so the lock may be fixed rigidly on its supporting plate 0 or pivoted thereto in the manner shown in Fig. 3.

As already mentioned above, on bringing the interlocking members on'the two stringers into engagement with one another by means of the slider e, the two supporting plates a and c automatically approach one another when the slider e slides on to the ends f of the supporting plates.

In order to ensure that the catch or eyelet b is brought into the correct'position with respect to the opening in the lock d with which it engages, one of the supporting plates, for example 0, may

be provided with a lug g projecting towards the other stringer, which lug is adapted to engage in a suitable opening or recess h in the other supporting plate, for example a, and thereby bring the two supporting plates 11. and 0 together in the correct position. 1

The locking device described is preferably attached to the sliding clasp fastening during the manufacture of the latter. However, the locking devicev may be added subsequently to an existing fastening.

I claim:--

1. A sliding clasp fastening comprisingdn combination: a first stringer; a first set of fastening members arranged on said stringer; a lock which can only be opened by means of a key and is mounted on said" first stringer; a supporting no member carrying said lock, said supporting member being formed of rigid material and fixedly secured to the edges of said stringer beyond the endmost fastening members; a second stringer; a second set of fastening members arranged on said second stringer; a locking member mounted on said second stringer and adapted to engage with said look when the fastening is in the closed position; a second supporting member carrying said lock, said supporting member being fixedly secured to the edges of said second stringer beyond the endmost fastening members; and a slider.

2. A sliding clasp fastening comprising in combination: a first stringer; a first set of fastening members arranged on said stringer; a lock which can only be opened by means of a key and is pivoted on said first stringer; a second stringer; a second set of fastening members arranged on said second stringer; a locking member mounted on said second stringer and adapted to engagewith said lock when the fastening is in the closed position; and a slider; said lock and said locking member being carried by supports formed of rigid material and fixedly secured to the edges of said stringers beyond the endmost fastening members.

3. A sliding clasp fastening comprising in combination: a slider; a first stringer; a first set of fastening members arranged on said stringer; a lock mounted on said first stringer; a second stringer; a second set of fastening members arranged on said second stringer; a locking member mounted on said second stringer and adapted to engage with said lock; and guiding means 10-- cated beyond the endmost fastening members for moving said locking member into engagement with said lock, said means being operable by the movement of the slider towards the closed end of the fastening.

4. A sliding clasp fastening comprising in combination: a first stringer; a slider; a lock mounted on said first stringer; a supporting member fixed to said first stringer and carrying said lock, said supporting member being narrowed at one end for the said slider to slide thereon; a second stringer; a locking member mounted on said second stringer and adapted to engage the said look when the fastening is in the closed position; and a second supporting member fixed to said second stringer and carrying said locking member, said second supporting member being narrowed at one end for the said slider to slide thereon; the said slider and the said first and second supporting members being so shaped and arranged as to cause the locking member to engage the lock when the slider is slid towards the lock, substantially as described.

5. A sliding clasp fastening comprising in combination: a first stringer; a lock mounted on said first stringer; a supporting member fixed to said first stringer and carrying said lock; a second stringer; a locking member mounted on said stringer and adapted to engage withsaid lock when the fastening is in the closed position; a second supporting member fixed to said second stringer and carrying said locking member; a lug projecting from one of said supporting members'; and a recessed part on the other of the said supporting members adapted to co-operate with said lug to guide the said locking member safely into engagement with the said lock.

KURT ROBERT JORDAN.

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