IMPROVEMENTS IN DOOR LOCKS LATCHES AND FURNITURE to be as follows :-
Year: 1885

page_text: We GEORGE HAYTER CHUBB of 128 Queen Victoria Street in the City of
London Lock and Safe Engineer and Manufacturer and GEORGE GASKELL EXTON
of Rose Bank High Street Walthamstow Engineer do hereby declare the nature
of our Invention for "IMPROVEMENTS IN DOOR LOCKS LATCHES AND FURNITURE
to be as follows :-
"
This invention has for its object improvements in door locks latches and
furniture. It applies especially to locks which admit of the door being opened by
pushing or pulling the handle.
Such a lock is described in the specification of a Patent granted to G. H. Chubb
and H. W. Chubb No 7610 in the year 1884. In this lock the bolt is rounded on
its two projecting sides so that it can turn inwards in either direction about fulcra
one on either side near where the bolt enters the locking case; a spring catch also
is provided in connection with the bolt in such manner as to prevent it turning in
a direction to allow the door to open until by pushing or pulling the handle the
spring catch has been moved out of the way.
According to our present invention we arrange this stop bar to turn about a
vertical axis, and the stop bar has a lug upon it noar this axis; the lug is
perforated and a metal stem passes through it. A spring surrounds the stem and
abuts on the lug and also upon a collar on the stem which is thus thrust forward
against the rear part of the bolt. The bolt is thus pressed outwards but it can
yield for opening and closing the door. The same spring reacts against the lug
and serves to keep the locking bar in place, preventing the bolt yielding to allow
the door to open except when by movement of the handle the locking bar is moved
out of the way.
In place of the lug on the locking bar a guide for the stein may be elsewhere
provided. In some cases it may be convenient to employ two locking bars to
operate on opposite sides of the bolt.
We also apply a spring in connection with the spindle and handles in such
manner as quite independently of the lock itself to press the spindle in a
longitudinal direction.
We employ a spindle with a screw thread cut upon its angles and with a pin or
projection upon it to act against the end of the locking bar and for the purpose of
tightening and adjusting the handles in the required position upon the spindles we
use screwed nuts with at one end a washer placed between the nut and the handle.

page_text: At the other end of the spindle a spring is provided between the bush of the
rose plate and the knob, and the rose plate is made with a recess of a depth to
admit of the movement of the knob above described whilst the neck of the knob
does not leave the recess or in any convenient manner a spring is provided to
impart longitudinal movement to the knobs or handles independently of the lock.
Where the bolt catch is arranged to operate by a partial rotation imparted to it,
as described in the above mentioned prior specification, and where it is not
convenient that the spindle should screw into the knob, we employ a short thick
spindle with sockets at its ends receiving screw stems projecting from the knobs.
Near the centre of the spindle a deep groove is turned or if preferred a projection
may be formed. The end of the stop bar enters this groove or comes in contact
with this projection and so is moved by the spindle when it travels longitudinally.
There may also be a shallower longitudinal groove in the spindle to allow of the
arm of the stop bar passing into its place when the spindle is thrust through the
door. The screw stems projecting from the knobs are tubular, and they receive
screws within them. These screws serve as stops in screwing the handle into the
spindle and can be set to project more or less from the end of the stem as may be
required to suit the thickness of the door. When the stem of the handle is
inserted into the socket of the spindle and is screwed up, the end of the inner
screws come to abut upon the bottom of the sockets, and the handles are set fast
upon the spindle and with the requisite distance between them.
If preferred in place of the inner screws plain stop pieces adjusted to length
may be employed.
The furniture above described is applicable generally to push and pull door
locks and latches.
We also make the striking plate of the lock adjustable so that the bolt
operating with the striking plate may retain the door closely without undue
freedom to shake whether the door fit closely or whether in consequence of
shrinkage, a certain amount of space is left between the door and the jamb when
the door is closed.
We provide the striking plate with a part moveable upon it and on this part is
the edge or surface with which the bolt comes in contact in opening and closing
the door. We arrange this piece to slide, so that it can be moved towards and
from the other side of the striking plate. Thereby the space to receive the nose
of the bolt can be adjusted to any width as required.

page_text: Improvements in Door Locks, Latches, and Furniture.
We GEORGE HAYTER CHUBB of 128 Queen Victoria Street in the City of
London Lock and Safe Engineor and Manufacturer and GEORGE GASKELL EXTON
of Rose Bank High Street Walthamstow Engineer 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 has for its object improvements in door locks latches and
furniture. It applies especially to locks which admit of the door being opened by
pushing or pulling the handle.
Such a lock is described in the specification of a Patent granted to G. H. Chubb
and H. W. Chubb N° 7610 in the year 1884. In this lock the bolt is rounded on
its two projecting sides so that it can turn inwards in either direction about fulcra
one on either side near where the bolt enters the locking case; a spring catch also
is provided in connection with the bolt in such manner as to prevent it turning in
a direction to allow the door to open until by pushing or pulling the handle the
spring catch has been moved out of the way.
According to our present invention we arrange this stop bar to turn about a
vertical axis and the stop bar has a lug upon it near this axis; the lug is perforated
and a metal stem passes through it. A spring surrounds the stem and abuts on
the lug and also upon a collar on the stem which is thus thrust forward against
the rear part of the bolt. The bolt is thus pressed outwards but it can yield for
opening and closing the door. The same spring reacts against the lug and serves
to keep the locking bar in place preventing the bolt yielding to allow the door to
open except when by movement of the handle the locking bar is moved out of
the way.
In place of the lug on the locking bar a guide for the stem may be elsewhere
provided. In some cases it may be convenient to employ two locking bars to
operate on opposite sides of the bolt.
We also apply a spring in connection with the spindle and handles in such
manner as quite independently of the lock itself to press the spindle in a longi-
tudinal direction.
We employ a spindle with a screw thread cut upon its angles and with a pin or
projection upon it to act against the end of the locking bar and for the purpose of
tightening and adjusting the handles in the required position upon the spindles we
use screwed nuts with at one end a washer placed between the nut and the handle.
At the other end of the spindle a spring is provided between the bush of the
rose plate and the knob and the rose plate is made with a recess of a depth to
admit of the movement of the knob above described whilst the neck of the knob
does not leave the recess or in any convenient manner a spring is provided to
impart longitudinal movement to the knobs or handles independently of the lock.
Where the bolt catch is arranged to operate by a partial rotation imparted to it
as described in the above mentioned prior specification and where it is not con-
venient that the spindle should screw into the knob we employ a short thick
spindle with sockets at its ends receiving screw steins projecting from the knobs.

page_text: Near the centre of the spindle a deep groove is turned (or if preferred a projection
may be formed). The end of the stop bar enters this groove or comes in contact
with this projection and so is moved by the spindle when it travels longitudinally.
There may also be a shallower longitudinal groove in the spindle to allow of the
arm of the stop bar passing into its place when the spindle is thrust through the
door. The screw stems projecting from the knobs are tubular and they receive
screws within them. These screws serve as stops in screwing the handle into the
spindle and can be set to project more or less from the end of the stem as may be
required to suit the thickness of the door. When the stem of the handle is
inserted into the socket of the spindle and is screwed up the end of the inner
screws come to abut upon the bottom of the sockets and the handles are set fast
upon the spindle and with the requisite distance between them.
If preferred in place of the inner screws plain stop pieces adjusted to length may
be employed.
The furniture above described is applicable generally to push and pull door locks
and latches.
.
We also make the striking plate of the lock adjustable so that the bolt operating
with the striking plate may retain the door closely without undue freedom to
shake whether the door fit closely or whether in consequence of shrinkage a certain
amount of space is left between the door and the jamb when the door is closed.
We provide the striking plate with a part moveable upon it and on this part is
the edge or surface with which the bolt comes in contact in opening and closing
the door. We arrange this piece to slide so that it can be moved towards and
from the other side of the striking plate. Thereby the space to receive the nose of
the bolt can be adjusted to any width as required.
In order that our said invention may be most fully understood and readily
carried into effect we will proceed to describe the drawings hereunto annexed.
Figure 1 is a side elevation of a latch lock constructed in accordance with our
invention; the case of the lock is removed and the lock bolt and parts in
connection therewith, is not shown.
Figure 2 is a plan partly in section of the same.
Figure 3 is a sectional plan of furniture constructed according to our invention
and suitable for push and pull locks.
Figure 4 is another arrangement of such furniture.
Figure 5 is a front view of an adjustable striking plate. Figure 6 is a back
view and Figure 7 is a section of the same.
Figure 8 is a front elevation and Figure 9 is a section of the adjustable part in
another form.
Figure 10 is a back view of another adjustable striking plate and Figure 11 is a
plan of the adjustable part.
In Figures 1 and 2 a a are supports on the lock case, they receive between.them
the lever or stop bar b and the studs 6' projecting from its sides are held in recesses
in the supports. The cover plate keeps the lever in place but allows it to move to
the extent indicated by the dotted lines.
b is a lug on the lever or stop bar and c is a stem passing through it. c¹ is a
collar on the stem and a coiled spring in compression between the lug b² and the
collar c¹. e is a heart shaped latch bolt on which the end of the stem c abuts.
The spring thus holds the lever b in the position indicated by the full lines resting
against the stop f on the lock plate. The spring also presses the latch bolt forward
and holds it in place. The latch bolt is able to yield and pass back into the case
when it comes against the striking plate as the door closes the spring & being then
compressed but the lever or stop bar 6 prevents the latch bolt yielding to permit
the door to open until it has been moved by means of the handle of the door to the
position indicated by the dotted lines.
In Figure 3 furniture suitable for a lock such as the above is shown. g glare
rose plates fixed on the door and g³ g³ their metal bushes; they are adapted to
form guides in which the cylindrical nuts h h and washers h' h¹ on the spindle ?

page_text: are able to slide. The spindle i has a pin i¹ fixed into it and it is this pin pressing
on the end of the lever or stop bar b which releases the latch bolt e and allows the
door to open.
To adjust the spindle i to position and to adjust the handles to the door the
spindle is made to screw into the nut pieces which form part of the
handles or knobs k a distance which is adjusted by suitably setting the nuts h.
The bush g³ receives a spring surrounding the nut and washer h h¹ and this
spring thrusts outwards the handle against which it operates. When the handles
are moved in the direction of the arrow the spring is compressed the pin ¹ then
displaces the end of the lever b and the door yielding to the push (or pull) opens.
The bush g³ is grooved on opposite sides so that the spindle with its pin ¿' can
be passed through it.
In Figure 4 each knob or handle m is provided with a stem m¹ entering sockets
in the end of a spindle n. The stem screws into the socket to a depth which is
regulated by the screw m². This screw is so set that the knob and spindle come
to their proper relative positions when the screw m² abuts upon the bottom of the
socket. n is a groove in the spindle n into which the extremity of a lever
corresponding to the lever b in Figures 1 and 2 enters.
The spindle has also a longitudinal groove n² to permit the spindle to pass the
end of the lever when the spindle is inserted into the door.
In Figures 5. 6 and 7. o is the part of the adjustable striking plate with which
the latch bolt e, comes into contact, it is clamped to the part of the striking plate
which is fixed to the door by screws and nuts p. p. The holes in the part o, by
which the screws pass are elongated so that the part can be placed in the required
position and the screws then tightened.
The piece shown by Figures 8 and 9 is similar to o in the preceding figures but
is furnished with a small roller to lessen friction. In Figures 10 and 11 the
arrangement is similar.
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. The arrangement of the lever or stop bar 6 stem c, spring d, and bolt e
substantially as described.
2. The furniture comprising the spindle i, pin or projection ¿¹, adjustable lock
nuts h, and spring 1, substantially as described.
3. The furniture comprising the socketed spindle n, and handle m, provided with
a stem m', screwing into the socket a distance regulated by the adjusting screw m³
substantially as described..
4. Striking plates provided with adjustable parts o, substantially as described.
5. Our improved door locks latches and furniture substantially as described and
represented by the annexed drawings,