Improvements in Locks and the like.
Year: 1897

page_text: Date of Application, 18th Sept., 1897-Accepted, 22nd Jan.,
1898
Improvements in Locks and the like.
I, AUGUST STENSTRÖM, of Helsingborg, in the Kingdom of Sweden, Merchant, do
hereby declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
The lock made according to this invention has the advantage of being sure and
unpickable in spite of its simple construction. Because of its simplicity it is moreover
very light and portable.
The lock is illustrated in the annexed drawing, in Fig. 1 from the side and partly
in section. Fig. shows a section on line a-b in Fig. 1. Fig. 3 shows the lock
open and Fig. 4, the outer appearance of the lock. In Figs. 5 and 6 the most
Fig. 7 is a
essential parts of the lock mechanism are shown on an enlarged scale
side view partly in section of a modified construction. Fig. 8 is a section on
line c-d Fig. 7. Fig. 9 is a side view of the pad lock open partly in section and
Fig. 10 is a side elevation of this modified form,
The outer form of the lock and its frame is of a common and known construction
It is formed of two S formed clamps A and B, which like the shanks of a pair of tongs,
are pivotally connected at the middle, and of the thus formed pairs of shanks, the
one is caused to clasp two adjacently placed edges of the articles which are to be
locked. Within the two other shanks the proper locking mechanism is placed and it
is this, that forms the object of the present invention.
The locking mechanism consists of two or more springs projecting from the one
shank, each provided at its free end with a clutch piece E. The other shank is
provided with two projections F and G with a space between them, that is so great,
that the clutches can just enter between the projections. This occurs when the
shanks are pressed together. An oblique bevil on the projection F cooperates with a
rounding on the clutches, and as soon as these have come within the projections
they will catch the projection F, when, as may be easily understood, the lock
is shut.
The lock is opened in the common way by means of a key, that may be inserted
The
through the key hole H made in the lock casing on both sides of the shanks.
key web is provided with grooves, corresponding with the different thicknesses of
the clutches (see Fig. 6) and when the key is turned round all the clutches are
brought out of gear with the projection F, where upon the lock is opened
automatically by the influence of the spring C.
If on the contrary a false key is used, the clutches will not be actuated at the
same time and in the same degree, but as shown in Fig. 5 either too little or too
much, in which latter case the clutches will also gear with the projection G, which
then contributes to keep the lock shut.
According to the modification shown in Figs. 7-10 the elastic clutches are replaced
by bolts E¹, turnable around pivots in the bottom of the lock casing and operated by
springs the former ends of which being formed as hooks catch in corresponding
hooks on the opposite shank, when the shanks A and B are brought together.
The lock may be used among other purposes for galoches when the ends of

page_text: the shanks are passed each in a hole made at the inner side of the galoches and the
galoches are in this way held together by the shanks. For umbrellas, when the
umbrella is closed two of the ribs are put in and embraced by the shanks, whereby
it is impossible to open the umbrella. For hats, in the rim of the hat a hole is made,
similar to that in a galoche, the lock is locked with the shanks passed through the
hole and the hat can only be used with the lock hanging on to the brim. For coats,
the shanks are passed through two button holes, either on the same side of the coat,
or through one at each side of the coat and the same cannot be buttoned, and in the
latter case not even be pution. Further hat and coat may be locked together by
introducing the shank ends partly through a button hole, partly through the hole
in the hat.
Moreover the lock can be used as a padlock or lock for bicycles and so on.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be perforined, I declare that what I claim is :--
T
1. In locks, which consist of two shanks pivotally connected with each other, which.
can clasp and hold whatever is to be kept locked, the lock mechanisin, situated between
the shanks consisting of two or more springs (D) projecting from the one shank, on
the free end of which there are suitable clutches, which, when the shanks are pressed
together, can enter between two projections on the opposite shank, the one of which,
which by means of a bevil carries the clutches between and within the projections,
then gears with the clutches, so that the lock can only be opened with a key
corresponding to the form of the clutches.
.
2. In locks of the kind claimed above the replacement of the elastic clutches by
turnable bolts (E¹) operated by springs, the former ends of which, formed as hooks,
gear with corresponding hooks on the opposite shank, when the shanks are brought
together.
Dated his own unty of September T.
HERBERT HADDAN & Co.,
Agents to Applicant, 18 Buckingham Street, Strand, W.C., London.