Improvements in Locks and Latches.
Year: 1899

page_text: Improvements in Locks and Latches.
We, HENRY ALEXANDER SQUIRE and JAMES EDMUND ALLDRITT SQUIRE,
trading together as Henry Squire & Sons, of New Invention, near Wolver-
hampton, in the County of Stafford; Manufacturers and Brass Founders, do
hereby declare the nature of this invention to be as follows:-
This invention has reference to locks and latches for doors drawers and the
like and is particularly applicable to the cheaper kinds of locks and latches
which are used for cabinet work but can also be applied to locks and latches
of a larger kind.
We will first describe the part of our invention which refers to locks.
In carrying out this invention the bolt is by preference a thick sheet metal
blank the fore end projecting through a hole in the lock casing in the usual
way. The back part of the bolt is carried and guided by a notched sheet metal
staple or guide piece which also keeps the bolt against the lock plate. A
loose V-shaped or other spring acts between the top of the bolt and the casing
to keep the bolt in contact with the guide. The part of the bolt which acts
against the guide is made with two inclines so that the turning of the key to
move the bolt forward raises the back end of the bolt slightly as the inclined
part moves along the guide and then when the bolt has moved to a certain
distance the spring causes the other incline to act against the guide and com-
plete the forward movement of the bolt. There is a projection on the bolt
which takes against the front part of the lock case and forms a stop to pre-
far and
the bolt from moving too
a stop at
the end of the incline to take against the guide and prevent the
The bolt has also a
bolt from being forced back when shot forward.
shoulder which takes against the guide when the lock is unlocked and thus
prevents the bolt from moving back too far. It will be seen that this construc-
tion of lock is very simple as it is composed of so few parts.
vent
also
there is
The lock above described can for wardrobes and wardrobe doors and other
doors be combined with a latch which we construct as follows:-Within the
combined lock and latch casing we provide a latch bolt the fore end of which
is rounded and projects through the edge of the case. The body of the latch
bolt is slotted and guided by a stump fixed in the case. A V-shaped or other
spring acts between the end of the latch and the casing and forces the latch
forward so that as the rounded end of the latch strikes the fixed striking plate
the latch is forced inwardly and shoots forward again to engage with the hole
in the striking plate when the door is closed.
The improved construction of latch above described can if desired be similarly
made without the lock part and used for pedestal doors and other doors where
no lock is required.
Dated this 8th day of December 1800.
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.

page_text: Improvements, in Locks and Latches.
We, HENRY ALEXANDER SQUIRE and JAMES EDMUND ALLDRITT SQUIRE,
trading together as Henry Squire & Sons, of New Invention, near Wolver-
hampton, in the County of Stafford, Manufacturers and Brass Founders, 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 follow-
ing statement:-
This invention consists of the herein described improvements in the con-
struction of locks and latches for doors drawers and the like and this invention
is particularly applicable to the cheaper kinds of locks and latches which are
used for cabinet work but can also be applied to locks and latches of a larger
kind. Locks and latches when constructed according to this invention are
composed of very few parts and these of a very simple kind which can be
manufactured very cheaply.
On the accompanying drawings Fig. 1 is a general view of a lock constructed
according to this invention with the case in section to shew the interior of the
lock Fig. 2 is an end view of the same; Fig. 3 shews the bolt part of the said
lock separately; Fig. 4 is a general view of a combined lock and latch for ward-
robes and wardrobe doors and other doors constructed according to this inven-
tion Fig. 5 shews the latch part of the same separately; and Fig. 6 illustrates
a latch constructed according to this invention for pedestal doors and other
doors where no lock is required.
The same letters of reference indicate the same parts in all the figures.
We will first describe the part of our invention which refers to locks and
which is illustrated by Figs. 1, 2 and 3.
In carrying out this invention the bolt A (which is by preference a thick
sheet metal blank) has the fore end a projecting through a hole in the lock
casing B in the usual way. The back part of the bolt A is carried by a notched
sheet metal staple or guide piece C which also keeps the bolt A against the
lock plate as the guide piece is made with a notch ein which the tail end a² of
the bolt A fits. A loose V-shaped or other spring D acts between the top of the
bolt A and the top 6 of the lock casing so as to keep the bolt A in the guide C.
The part of the bolt A which acts against the guide C is made with two
inclines marked respectively a³ at so that the turning of the key to move the
bolt A forward raises the back end a² of the bolt slightly as the inclined part a³
moves along the guide C and then when the bolt A has moved through a certain
distance the spring D causes the other incline at to act against the guide C
and complete the forward movement of the bolt A. There is a projection a
on the bolt A which takes against the front part 2 of the lock case B and forms
a stop to prevent the bolt from moving forward too far and there is also a
stop at the end of the incline a to take against the guide C when the bolt
has been shot forward and prevent the bolt A from being forced back again.
The bolt A has also a shoulder a which takes against the guide C when the
bolt is unlocked and thus prevents the bolt from moving back too far. It will
be seen that this construction of lock is very simple as it is composed of so very
few parts.
The lock above described can for wardrobe doors and other doors be combined
with a latch constructed as we will now describe by referring to Figs. 4 and 5.
Within the combined lock and latch casing B provided with the locking bolt A
and spring D and guide C as above described we provide a latch bolt E the
fore end e¹ of which is rounded to a hemispherical form as shewn and projects

page_text: through a hole in the edge of the case B. The body of the latch bolt E is
slotted at e and guided by the stump 9 fixed to the case B. The V-shaped or
other spring H on the stump h¹ acts between the end of the latch E and
the back 63 of the casing B and forces the latch E forward So
that when the rounded end of the latch E strikes the fixed striking plate the
latch is forced back into the lock case and shoots forward again to engage with
the hole in the striking plate when the door is closed.
The striking plate is of the ordinary kind with a round hole for the end e¹ of
the latch bolt E to engage in.
My improved construction of latch E may be made as llustrated by Fig. 6
without the locking bolt A. and used for pedestal doors and other doors where
no lock is required.
In Fig. 6 the front part 2 of the latch case B is broken away round the latch
end e¹ so as to shew the shape of the same more clearly.
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. In a lock, the combination of the case made with the guide piece C for
the bolt, the bolt A having the double inclined part as a to act on the guide C
and the stops as a and a to limit the movement of the bolt, and a spring to
keep the bolt in the guide C, all substantially as hereinbefore described and
illustrated by Figs. 1, 2 and 3 of the accompanying drawings.
2. In a combined lock and latch, the combination of the case made with the
guide piece C for the bolt, the bolt A having the double inclined part a³ a to
act on the guide C and the stops as a and a to limit the movement of the
bolt, a spring to keep the bolt in the guide C, the latch E made with hemis-
pherical rounded nose el projecting through the front of the case, guide stump G
fixed to the case and taking through parallel slot 2 of the latch, and spring H
to force the latch E forward, all substantially as hereinbefore described and
illustrated by Fig. 4 of the accompanying drawings.
3. In a latch for pedestal doors and other doors the combination of the case,
the latch E made with hemispherical rounded nose el projecting through the
front of the case, guide stump G fixed to the case and taking through parallel
slot 2 of the latch, and spring H to force the latch E forward, all substantially
as herein before described and illustrated by Fig. 6 of the accompanying
drawings.
Dated this 11th day of Sontember 1900
CHARLES BOSWORTH KETLEY,
Agent for the Applicants.