Improvements in Padlocks and other Locks,
Year: 1892

page_text: Date of Application, 6th July, 1892
Complete Specification Left, 30th Mar., 1893-Accepted, 6th July, 1893
PROVISIONAL SPECIFICATION.
Improvements in Padlocks and other Locks,
We, THE CO-OPERATIVE PADLOCK SOCIETY, LIMITED, of Neale Street,
Walsall in the County of Stafford, Lock Manufacturers, and HERBERT TUCKLEY,
of High Street, Walsall, aforesaid, Lock Maker, do hereby declare the nature of
this invention to be as follows:-
This invention relates, chiefly, to self-latching pad and other locks, but is in part
applicable also to certain non self-latching locks.
In a self-latching pad or other lock, constructed according to one modification of
this invention, the spring bolt formed with a latch head, through the medium of
which the self-latching is effected, is provided with a lever or levers gated in the
usual manner of levers employed with non self-latching locks, but a lengthway slot
is formed back in such lever or each lever so that when the stump which projects
from the bolt into the lever gating or gatings is in position within such gating
or gatings due to the bolt being unlocked it may be moved back along the slot or
slots as the bolt is pressed back against the pressure of its spring either by the key
in unlatching or by the nose of the shackle or other part which is pressed against
the bolt head for self-latching therewith, or against which the bolt head is pressed
for such purpose. The bolt is formed with two key-gatings, namely, with one by
which it is unlatched by the key and with another by which it is shot forwards to
lock it when latched. The spring does not follow the bolt as it is locked, being
stopped by a stump as the bolt is moved forwards from its latched position. In
the case of a padlock, the spoon end of the shackle is thrown up out of the lock
case in the usual manner immediately the bolt is unlatched by the key.
According to a further modification, the lever or levers, gated in the manner
described for the purpose of the above described modification, are used in com-
bination with a separate or secondary bolt or sliding plate. This secondary bolt is
formed with a projection which when the lock is simply latched is back against a
stop formed on the latching or primary bolt, and if the key is then turned
backwards the secondary bolt is moved back thereby and the projection of such
bolt carries back and unlatches the primary bolt, the stump of the secondary bolt
moving along the slot or slots aforesaid in the lever or levers. On removal of
pressure from the key the primary bolt springs forward again carrying the
secondary bolt forwards with it. The primary bolt is locked by shooting forwards
the secondary bolt, by means of the key, when the projection of such bolt is
brought immediately behind a second projection on the primary bolt and thus
prevents such latter bolt being moved back against the pressure of its spring. In
this modification the primary bolt is not shot forwards at all to lock it, but is simply
securely held in its latched position by the secondary bolt. The secondary bolt is,
of course, formed with two key-gatings as in the case of the latching bolt of the
first described modification. In this modification, a tumbler may be substituted for
the lever or levers, the portion of the secondary bolt forwards of the projection
with which the stump of the tumbler engages being formed to allow such bolt to be
moved backwards from its latched position either by the key or by endway pressure
against its head exerted by a shackle, link or the like with which it is to be self-
latched.
The latching bolt is carried, according to either modification, to slide against the
back plate of the case; and in the case of a padlock or other lock, such as a box
lock, in which a shackle or link enters the top of the lock case for engagement with
the bolt head, or pair of heads, the bolt head, or heads, are cranked out so as to

page_text: come about in the middle of the case and permit of the hole in the spoon end of the
shackle or the hole or holes in the link or links being formed through the middle
thereof instead of being notched in from one side as is usual in the case of lever
locks of this description, whereby such spoon end or link or links may be made
much stronger than usual. This formation of the bolt head or heads may be used,
also, with advantage in non self-latching locks in which the bolt engages with a
shackle or link or links, which enter through the top of the case. In the case of a
self-latching padlock this formation of the head facilitates the application of the
throwing out spring, as it allows of the free end of the spring passing behind
the head.
Dated this 6th day of Tul. 1000
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Padlocks and other Locks.
We, THE CO-OPERATIVE PADLOCK SOCIETY, LIMITED, of Neale Street,
Walsall in the County of Stafford, Lock Manufacturers, and HERBERT TUCKLEY,
of Dudley Street (formerly of High Street) Walsall, aforesaid, Lock Maker, 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 :-
This invention relates, chiefly, to self-latching pad and other locks, but is in part
applicable also to certain non self-latching locks.
A self-latching padlock constructed according to this invention is illustrated' by
the drawings herewith, of which
Figures 1 and 2 are views with the front or cap-plate removed so as to expose
the interior mechanism, Figure 1 shewing the bolt to be latched only, and Figure 2
shewing the bolt to be securely locked.
Figure 3 is a detached view of the plan or upper edge of the bolt; and
Figure 4 is a detached view of one of the levers hereinafter described.
A is the main bolt, of which the head a is formed with a rounded or bevelled
end, and the nose b of the shackle B is also rounded or bevelled so that the lock is
self-latching when the bolt is not locked in the manner hereinafter described. The
bolt A is moved back against the force of a spring e, which as it rebounds causes
the bolt to return into its latched position. A is a secondary bolt or sliding-plate
which is guided in the case by studs ef passing through slots in such secondary
bolt or plate; and levers C (or there may be a single lever only) one of which only
(for the sake of convenience) is shewn, and by broken lines only so as not to obscure
the parts which come behind it, are pivoted on the stud e and engage with a
stump which projects from the secondary bolt. The secondary bolt A is formed
with an upward projection j, and the main or latching bolt A is formed with down-
ward projections kl. The lock is simply latched when the secondary bolt A is in
the position shewn by Figure 1, namely, with the projection back against the
hinder projection of the bolt A. The levers C are of the character of the levers
usually employed with non self-latching lever locks, and are gated in the manner
of such levers except that a lengthway slot g is formed backwards out of the
gating of each lever so that when the stump, which projects' into the lever gatings,
is in position within such gatings due to the secondary bolt being in its latched
or intermediate position, as shewn by Figure 1, it may be moved backwards along
the slots as the supplementary bolt is pressed back, in the manner hereinafter
described, to move back the main bolt A against the pressure of the spring c and
thus unlatch it. The secondary bolt is formed with a key-gating or horn D by
means of which it is moved back by the key, when in its latched or intermediate
position shewn by Figure 1, the backward movement of the supplementary bolt

page_text: causing the projection j to press back the projection 7, and consequently the main
bolt, to unlatch the main bolt. The secondary bolt is formed also with a key-
gating E by which it is shot forwards from its latched or intermediate position
shewn by Figure 1 into the position shewn by Figure 2, with its projection against
the forward projection of the bolt A, in order to securely lock such bolt. In
self-latching, the main bolt A is of course moved back independently of the
secondary bolt. It will be seen that the main bolt A is not shot forwards at all
from its latched position, but is securely locked in such position by the secondary
bolt when the latter has been shot forwards into the position shewn by Figure 2, so
as to bring the projection; immediately behind the projection k.
A tumbler may
be substituted for the lever or levers C, the portion of the secondary bolt forwards
of the projection with which the stump of the tumbler engages being formed, as
will be readily understood, to allow such bolt to be moved backwards from its
latched position by the key so as to carry back and unlatch the primary bolt.
The illustrations shew the invention applied in the case of a padlock, but the
invention, substantially as above described, is applicable also to other descriptions
of latching locks, as will be obvious.
The latching bolt is carried to slide against the back plate of the case; and in
the case of a padlock or other lock, such as a box lock, in which a shackle or link
or links enters or enter the top of the case for engagement with the bolt head a, or
heads, the bolt head, or heads, are cranked out, as shewn in the case of a single
head a Figure 3, to come about in the middle of the case and permit of the hole in
the spoon end of the shackle, or the hole or holes in the link or links, being
formed through the middle thereof instead of being notched in from one side as is
usual in the case of lever locks of this description, whereby such spoon end or link
or links may be made much stronger than usual. This formation of the bolt head
or heads may be used, also, with advantage in non self-latching locks, in which the
bolt engages with a shackle or link or links which enters or enter through the top
of the case.
In the case of a self-latching padlock this formation of the head
facilitates the application of the throwing out spring i, as it allows of the free end
of the spring passing behind the head as shewn.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim, is :-
1. A self-latching padlock, or other lock, having a main bolt set forwards by
means of a spring and a supplementary bolt with which a lever or levers or a
tumbler is combined, said supplementary bolt being key-gated and combined with
the main bolt in such manner that it may be moved back from its latched or
intermediate position by means of the key and carry backwards with it the main
bolt against the pressure of its spring, and may be shot forwards by means of the
key from its latched or intermediate position into a position in which it securely
prevents the main bolt from being pushed backwards, and thus securely locks such
main bolt, said main bolt being readily capable of being moved back for self-
latching independently of the secondary bolt when the secondary bolt is in its
latched or intermediate position, substantially as described and shewn, as applied to
a padlock, by the drawings herewith.
2. A self-latching padlock, or other lock, having a main bolt in combination with
a supplementary bolt, one of the said bolts having a projection in position between
two projections or abutments of the other bolt spaced apart to allow of a certain
movement of the one bolt in relation to the other, substantially as described and
shewn, as applied to a padlock, by the drawings herewith, for the purpose set forth.
3. In a padlock, or other lock, such as a box lock, in which a shackle or link or
links enters or enter the top of the lock case for engagement with the bolt head, or
bolt heads, forming such bolt head or heads cranked out from the main or other
portion of the bolt so as to come into about the middle of the case and permit the
hole in the spoon end of the shackle, or the hole or holes in the link or links, being

page_text: formed through the middle thereof, substantially as described and shewn, as applied
to a padlock, by the drawings herewith.
4. The general combination and arrangement of parts constituting a self-latching
padlock, substantially as illustrated by the drawings herewith and described with
reference thereto.
Dated this 28th day of March 1893
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicants.