Improvements in Chain Padlocks.
Year: 1888

page_text: Date of Application, 25th Oct., 1888
Complete Specification Left, 25th July, 1889-Accepted, 7th Sept., 1889
PROVISIONAL SPECIFICATION.
Improvements in Chain Padlocks.
We, DAVID WAINE, and ISAAC WAINE, trading together as John Waine and
Sons, of Britannia Works, Willenhall, Staffordshire, Lock Manufacturers, do hereby
declare the nature of this invention to be as follows :—
This invention consists of the improvements herein described in "chain" padlocks
that is those padlocks in which a chain takes the place of the usual bow or shackle
of the padlock.
For the purposes of this invention we provide a padlock casing which is by
preference of the usual heart shape but it may be of any other convenient form.
The chain of the padlock is by preference made of forked links jointed together so as
to form alternately blank spaces and holes for the shut or bolt to take into. One end of
this chain is jointed to the said casing and the other end is free. The usual hole
where the end of the hasp enters the padlock casing is continued downwardly right
through the side of the casing so that when the chain is formed into a loop the end of
the chain can be inserted in the said hole and pushed down and out through the
side of the casing to any extent to diminish the size of the loop as may be required.
The end of the shut or holt which engages with one or other of the forked links
of the chain is made inclined on its upper side and flat underneath so that when
the free end of the chain is inserted in the padlock casing as above described and
pulled, the links will act upon the inclined side of the shut or bolt and force it back-
wardly. A spring in the lock casing acts upon the shut or bolt and continuously
forces it forward so that its flat side will engage with one or other of the links of the
chain and thus lock the padlock. The shut is arranged to be pressed backwardly by
inserting and turning the key in the usual way to unlock the padlock.
maintain the shut or holt in its unlocked position while the chain is being unthreaded
from the padlock casing we provide within the padlock casing a suitable spring catch
which when the shut or bolt is in its unlocked position engages with a notch or
projection on the shut or bolt and prevents the shut or bolt being moved forward by
the aforesaid spring. On turning the key in the opposite direction to that required to
unlock the padlock this catch is raised and the shut or bolt shoots forward to engage
with one or other of the links of the chain.
Dated this 18th day of October 1888.
In order to
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.
COMPLETE SPECIFICATION.
Improvements in Chain Padlocks.
We, DAVID WAINE and ISAAC WAINE, trading together as John Waine and
Sons, of Britannia Works, Willenhall, Staffordshire, Lock Manufacturers, 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 inventions consists of the improvements herein described in "chain" padlocks
that is those padlocks in which a chain takes the place of the usual bow or shackle
of the padlock.
For the purposes of this invention we provide a padlock casing which is by
preference of the usual heart shape but it may be of any other convenient form.
The chain of the padlock is by preference made of forked links jointed together
so as to form alternately blank spaces and holes for the shut or bolt to take into. One
end of this chain is jointed to. the said casing and the other end is free. The usual
Price 8d 1
.

page_text: hole where the end of the hasp enters the padlock casing is continued downwardly
right through the side of the casing so that when the chain is formed into a loop the
end of the chain can be inserted in the said hole and pushed down and out through the
side of the casing to any extent to diminish the size of the loop as may be required.
The end of the shut or bolt which engages with one or other of the forked links of the
chain is made inclined on its upper side and flat underneath so that when the free end
of the chain is inserted in the padlock casing as above described and pulled, the
links will act upon the inclined side of the shut or bolt and force it backwardly. A
spring in the lock casing acts upon the shut or bolt and continuously forces it
forward so that its flat side will engage with one or other of the links of the chain
and thus lock the padlock. The shut is arranged to be pressed backwardly by inserting
and turning the key in the usual way to unlock the padlock. In order to maintain
the shut or bolt in its unlocked position while the chain is being unthreaded from the
padlock casing we provide within the padlock casing a suitable spring catch which
when the shut or bolt is in its unlocked position engages with a notch or projection on
the shut or bolt and prevents the shut or bolt being moved forward by the aforesaid
spring. On turning the key in the opposite direction to that required to unlock the
padlock the catch is raised and the shut or bolt shoots forward to engage with one or
other of the links of the chain.
In
On the accompanying drawing Fig. 1 represents in sectional front elevation a chain
padlock constructed according to our invention; Fig. 2 is a side view of the same
partly in section on line X X of Fig. 1; Fig. 3 is a sectional plan of the same.
Figs. 1, 2 and 3 the shut or bolt is in its locked position; Fig. 4 shews the same parts
as Fig. 1 with the chain pressing back the shut or bolt as the chain is pulled through
the padlock casing; Fig. 5 is a similar view of the padlock unlocked; Fig. 6 represents
"the spring catch separately in front and side elevations and in plan; Fig. 7 represents
the shut or bolt of the same separately in front and side elevations and in plan; Fig. 8
shews in side and front elevations part of the casing of the said padlock, and Fig. 9
shews separately views of one of the links of the chain of the same.
The same letters of reference indicate the same parts in all the figures of the
drawing.
a is the padlock casing and b is the chain which takes the place of the usual bow or
shackle; this chain is by preference made of forked links of the shape shewn each
link having a tail piece which fits in between the fork of the next link thus forming
blank spaces and holes alternately for the shut or bolt to take into ; but instead of
this chain any other ordinary form of chain may be employed which has alternate
blank spaces and holes for the shut or bolt. One end of the chain is jointed to the
casing a between the usual ears a¹, and the free end 63 of the chain is by preference
provided with a tongue as shewn for its better insertion in the hole a in the padlock
casing. is the hole in the padlock casing through which the end of the chain
emerges the mechanism inside the lock being protected by the guard or shield e which
is shewn separately by Fig. 8 and is provided with pegs c by which it is secured to
the other part of the casing; this guard or shield c is provided with a hole c² through
which the front end of the shut or bolt d projects when the padlock is locked. The
shut or bolt d is shewn separately by Fig. 7. It will be seen the front d' of
the shut or bolt is inclined above and flat underneath. This front end is guided
by the shield c and the back end is guided by being slotted at where the pin e
passes through. f is the spring which acts upon the shut or bolt d and continuously
presses it forward and d³ is the lower projecting part which is acted upon by the
key in unlocking the padlock. is the spring catch pivoted on the pin e and
also acted upon by the spring f the front end of the catch being notched so as
to engage with the projection on the shut d when the padlock is unlocked as shewn
in Fig. 5; the fore part of this spring catch is also inclined underneath so that it
will be lifted by the projection d when the shut or bolt is pressed back in unlocking
the padlock. is a tail provided on the spring catch h and which is operated upon
by the key in unlocking the padlock as shewn in Fig 4.
When the free end 3 of the chain b is inserted in the hole a² and out, at the hole a³

page_text: in the padlock casing, it will in passing act upon the inclined upper side of the
fore part d' of the shut or bolt and push the same backwardly the spring f
meanwhile keeping the front end of the shut or bolt pressed forward so that it will
alternately shoot into the holes in the chain and be pressed backwardly by the blank
spaces acting upon its upper side so that when the chain has been pulled through the
padlock casing to form a loop of the required size the shut or bolt will engage
with one of the links and prevent the chain being withdrawn. To unlock the bolt and
maintain the shut d in its unlocked position so that the chain can either be threaded
or unthreaded from the padlock casing without engaging with the bolt, the key has to
be turned to engage with the lower projecting part of the shut so as to force the
shut back a little farther than it would be forced back by the chain when the notched
end of the catch will spring down and engage with the projecting part d' as shewn
in Fig. 5 and maintain the shut or bolt in this position. To lock the bolt the key has
to be turned in the opposite direction so as to lift the spring catch from the
projecting part d' which is done by the key coming into contact with the tail
end 2 of the catch as shewn in Fig. 4.
The accompanying drawing shews what is considered to be the best way for
carrying the said invention into effect but it is to be understood that the invention
is not limited to the precise details illlustrated, as for instance, the internal mechanism
of the lock, the shape of the lock casing, and the form of chain, might be con-
siderably modified without departing from the nature of this invention.
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. In a chain padlock, arranging the free end of the chain to pass through the
padlock casing in combination with a spring shut or bolt arranged to operate sub-
stantially as and for the purposes herein before set forth.
2. A chain padlock casing baving a through hole a² a³ for the chain in combination
with a shield or guard c for hiding and protecting the internal mechanism of the
padlock substantially as hereinbefore set forth.
3. In a chain padlock in which the free end of the chain is arranged to pass
through the lock casing, the employment of a shut or bolt the fore part of which
is inclined above and flat underneath for the purposes and substantially as herein-
before set forth.
4. In a chain padlock in which the free end of the chain is arranged to pass through
the lock casing, the employment of a shut or bolt the fore part of which is inclined
above and flat underneath, for the purposes set forth, in combination with a spring
catch for maintaining the said shut or bolt in its unlocked position and arranged to be
operated by a suitable key so as to release said shut or bolt, substantially as hereinbefore
set forth.
5. In chain padlocks the employment of the chain b formed of forked links
substantially as hereinbefore described and illustrated by the accompanying drawing.
6. The combination of parts constituting the improved chain padlock arranged
and operating substantially as herein before described and illustrated by the accom-
panying drawing.
"
T1 1000
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.