Year: 1897

page_text: We, THE CO-OPERATIVE PADLOCK SOCIETY, LIMITED,, of Neale Street, Walsall,
in the County of Stafford, Manufacturers, and AMBROSE ASTON, of 9, Bray Street,
Willenhall, in the County of Stafford, Locksmith, do hereby declare the nature of
this invention to be as follows:-
This invention relates to the type of padlock in which the inner end of the shackle
is fitted to slide within the case, in which the shackle is opened by drawing out-
ward the portion within the case to leave the required space between the outer end
of the shackle and the case, and in which the shackle is locked by mechanism
which is used in association with the portion of the shackle which is fitted to slide
within the case; and has for its object to improve the construction of padlocks of
this type, and the method of using a key therewith, with a view, more especially,
to their greater convenience and security.
A padlock constructed according to this invention has the portion of the shackle
which is fitted to slide within the case formed at its inner end as a flat plate which
extends across or some distance across the case and slides, as the shackle is moved,
against the front or back plate of the case. This plate of the shackle, carries,
according to the preferred arrangement, a pin on which is mounted a set of levers,
which extend upwards from the pin and each of which is formed with a vertical
slot which is open at its upper end. A stump is fixed within the case in position
immediately at the outer ends of the levers when the shackle has been pushed in.
The levers are each pressed sideways by a spring, and are each formed with a nib
which stands up from its upper end in position some distance to the rear of the
open end of the slot, and when the shackle is in its closed position the levers are
pressed forwards by their springs until the nibs of the levers come against the
stump aforesaid. The levers, and consequently the shackle also, are thus pre-
vented by the stump from being moved up, and the shackle is therefore locked.
A slit is formed across and through the side of the rim of the case towards which
the levers are pressed by their springs, and this slit forms the key-hole. The key
is formed of a flat piece of metal and has a number of steps cut in its end corres-
ponding to the number of levers. These steps are in such relation to one another
that when the key is pushed endways through the keyhole and the levers are pushed
back thereby their slots all come into coincidence together with the stump afore-
said, and when this is the case the shackle may be moved outwards, the opposite
sides of the slots passing, in such case, across the opposite sides of the stump. The
shackle is thrown out automatically, by means of a suitable spring, immediately the
slots of the levers come into coincidence with the stump; and is locked again by
simply pushing it fully in, against the pressure of its spring, when the levers are
pressed in again by their springs so that their upper ends will bear against the
nderside of the stump.

page_text: cases, the plate of the shackle is, of course, formed with a slot or with a portion cut
away, to clear the drill pin, key or barrel.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
1. A padlock having the inner end of the shackle formed as an enlargement
which is capable of sliding endways within the case, a stump fixed within the
case, or carried by the enlargement, slotted levers pivoted to such enlargement,
or to the case, which are normally. pressed forward, when the shackle is fully pushed
in, into positions which cause their ends to come against the stump, or the stump
to come against their ends, (if an attempt is made to pull the shackle open) and
thus prevent the shackle being opened, and means by which the levers may be
moved to bring their slots into, coincidence with the stump and thus allow of the
outward movement of the shackle, substantially as described.
2. A padlock having the inner end of the shackle formed as an enlargement
which is capable of sliding endways within the case, a stump fixed within the case,
or carried by the enlargement, slotted levers pivoted to such enlargement, or to
the case, which are normally pressed forward, when the shackle is fully pushed
in, into positions which cause their ends to come against the stump, or the stump.
to come against their ends, (if an attempt is made to pull the shackle open) and
thus prevent the shackle being opened, a slot or opening through the side or rim of
the case for the passage of the key therethrough, and a key suitably shaped at its
end to ensure that when it has been pushed sufficiently endways through such slot
or opening it will move the levers into such positions that their slots will come into
coincidence with the stump and thus allow of the outward movement of the shackle,
substantially as described.
3. A padlock having the inner end of the shackle formed as an enlargement
which is capable of sliding endways within the case, a stump fixed within the case
or carried by the enlargement, slotted levers pivoted to such enlargement, or to the
case, which are normally pressed forward, when the shackle is fully pushed in,
into positions which cause their ends to come against the stump, or the stump to
come against their ends, (if an attempt is made to pull the shackle open) and thus
prevent the shackle being opened, a slot or opening through the side or rim of the
case for the passage of the key therethrough, a key suitably shaped at its end to
ensure that when it has been pushed sufficiently endways through such slot or
opening it will move the levers into such positions that their slots will come into
coincidence with the stump and thus allow of the outward movement of the shackle,
a ward or wards carried by the enlargement of the shackle and a notch or notches
corresponding therewith formed in the edge of the key in position that the ward or
wards can pass therethrough only when the key has been pushed the proper distanco
into the lock to move the levers into positions which bring their slots into coin-
cidence with the stump, substantially as described.
4. A padlock, and key constructed substantially as described and shewn, by way
of example, by the drawings herewith.
בד
1
قيم
1 T..1.. 1000