Improvements in Latches or Locks.
Year: 1889

page_text: Date of Application, 26th June, 1889
Complete Specification Left, 21st Mar., 1890-Accepted, 26th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in Latches or Locks.
ADAM GARSON HORNE 96 Roslea Drive Dennistoun Glasgow in the County of
Lanark Clerk do hereby declare the nature of this invention to be as follows:-
My invention consists of an application of a shutter attached to the inside of a
lock or latch, and said shutter is attached to the inside of a lock or latch by means
of a hinge or hinges, said shutter being actuated by means of an attachment
connected with a swivel or other movement. The said swivel movement acting as
a fastner to the levers or bolts of the latch or lock. In further describing my invention
said shutter is opened by the passing of the key to the inside of the latch or lock,
and while passing through and partially turned it acts upon said swivel or fastner
so as to prevent the levers or bolts from shifting. By a further turning of the key
said shutter closes and relieves the levers or bolts so that they can be moved by the
key. I further explain that while the shutter is displaced by the key the swivel
or fastner immediately acts and secures the levers or bolts and said fastner is
only withrawn when the key has passed through and partially turned in the lock.
Dated this 22nd day of June 1889.
ADAM GARSON HORNE.
Improvements in Latches or Locks.
I, ADAM GARSON HORNE, of 96 Roslea Drive, Dennistoun, Glasgow, in the County
of Lanark, North Britain, Clerk, 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 :-
My Invention relates to improvements in latches or locks and consists in hinging
or otherwise securing to the inside of the lock or latch a shutter which is actuated
by means of an attachment connected with a locking rod or swivel, so that when the
shutter is open the levers or bolts of the lock or latch are fastened or secured, thus
preventing the lock from being picked.
In order that my Invention may be properly understood and readily carried into
effect I have hereunto appended two explanatory sheets of drawings, in the several
Figures of which corresponding parts are marked with the same letters of reference.
In sheet 1, Figure 1, is a sectional elevation of a lock, commonly known as the
Chubb Lock, shewing my improvements applied thereto.
.
Figure 2, is a plan of Figure 1, taken on the line A. B.
Figure 3, is a detached portion of Figure 1, shewing the shutter open.
Figure 4, is also a plan of Figure 1, but shewing the levers locked or secured.
The shutter a, is hinged or otherwise secured to the inside of the keyhole of the
lock. To this shutter there is pivotted an arm b, with spring c. This arm works
in a telescopic tube d. Attached to this arm 6 is a link e engaging with a locking
arm or swivel f, which is pivotted at g. When the key is passed into the keyhole
to the required extent the shutter a is opened as seen more particularly in Figure 3,
and while passing through the shutter moves the arm b, along and the link e which
engages with the locking arm or swivel with it, thereby locking or securing the levers
or bolts and thus preventing them from being shifted as seen more particularly in
Figure 4. When the key is turned, the shutter, by the action of the spring, is
closed and relieves the levers or bolts, so that the lock can be opened in the
ordinary way
'

page_text: My improvements being also applicable to what are known as "sneck" locks,
I have thought it desirable to shew in the drawings my inprovements applied to
such locks, of which Figure 5 is a similar view to Figure 2 in sheet 1; and Figure 6
a detached portion of Figure 5.
The several parts in these Figures having been already described I need not herein
further describe them. When the shutter is opened the locking arm or swivel f. is
turned so that the end f¹, engages in the recess cut in the bolts. This prevents the
bolts moving in a horizontal direction.
Under a modification of my Invention I may make the arm & work in an eye k, in
place of the telescopic tube d, as shewn in Figures 5 and 6.
1 have also shewn my improvements as applied to a combination lock of which
Figure 7, sheet 2, is a plan; Figure 8, a detached portion shewing the shutter closed;
while Figure 9, is also a detached portion shewing the shutter open.
In these Figures the shutter a, is hinged or otherwise secured to the one side of
the keyhole so that when closed it is flush with it. To the inside of the plate of the
lock there is secured a flexible bar 1, with siot m, working in a pin n, to keep it in
position. Inside of the lock there is secured a moveable rod o, the lower part of which
is bent upwards as shewn at p; and whon in its normal position rests against the
inside of the frame of the lock. To this rod there is a flange g, resting against the
lever t, which is underneath the bolt n, with pin r, which prevents the lever S, rising
when the bar o, is held down.
When the key is inserted into the keyhole of the lock the shutter a, is opened,
and it, pressing against the flexible rod 1, moves it in a downward direction so that
it lies in front of the bent-up portion p, of the rod o, as shewn in Figure 9 sheet 2
thus preventing it from being moved and so securing the bolt and levers. As the
key is revolved the shutter closes, whereby the flexible bar is released and returns to
its normal position as shown in Figure 8, so that the rod o, is free to move upwards,
thus allowing the lock to be opened. When the lock has been opened the rod o,
then returns to its normal position by means of the spring s, as shewn in Figure 7.
It is to be understood that although I have only shewn my improvements applied to
three different kinds of locks or latches, they may be applicable to any kind of lock
or latch.
Having now particularly described and ascertained the nature of my said Inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The general arrangement and combination of parts constituting my improve-
ments in latches and locks, substantially as hereinbefore described and shewn upon
the annexed sheets of drawings.
2. The shutter a, hinged or otherwise secured to the inside of the keyhole of
the lock, with armi b, and spring c, link e, telescopic tube d, and locking arm or
swivel f, all operating in the manner herein before described and shewn on the
accompanying sheets of drawings.
3. The shutter a, hinged or otherwise secured to the one side of the keyhole of
the lock; the flexible bar 1, with slot m, working in a pin n, the moveable rod o,
with bent-up end p, and flange q, and pin r, all operating in the manner hereinbefore
described and shewn upon the accompanying sheets of drawings.
Dated this 20th day of March 1890
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents.

page_text: Date of Application, 26th June, 1889
Complete Specification Left, 21st Mar., 1890-Accepted, 26th Apr., 1890
PROVISIONAL SPECIFICATION.
Improvements in Latches or Locks.
ADAM GARSON HORNE 96 Roslea Drive Dennistoun Glasgow in the County of
Lanark Clerk do hereby declare the nature of this invention to be as follows:-
My invention consists of an application of a shutter attached to the inside of a
lock or latch, and said shutter is attached to the inside of a lock or latch by means
of a hinge or hinges, said shutter being actuated by means of an attachment
connected with a swivel or other movement. The said swivel movement acting as
a fastner to the levers or bolts of the latch or lock. In further describing my invention
said shutter is opened by the passing of the key to the inside of the latch or lock,
and while passing through and partially turned it acts upon said swivel or fastner
so as to prevent the levers or bolts from shifting. By a further turning of the key
said shutter closes and relieves the levers or bolts so that they can be moved by the
key. I further explain that while the shutter is displaced by the key the swivel
or fastner immediately acts and secures the levers or bolts and said fastner is
only withrawn when the key bas passed through and partially turned in the lock.
Dotal this 2nd dare of Luns 1880
ADAM GARSON HORNE.
COMPLETE SPECIFICATION.
Improvements in Latches or Locks.
I, ADAM GARSON HORNE, of 96 Roslea Drive, Dennistoun, Glasgow, in the County
of Lanark, North Britain, Clerk, 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:-
My Invention relates to improvements in latches or locks and consists in hinging
or otherwise securing to the inside of the lock or latch a shutter which is actuated
by means of an attachment connected with a locking rod or swivel, so that when the
shutter is open
the levers or bolts of the lock or latch are fastened or secured, thus
preventing the lock from being picked.
In order that my Invention may be properly understood and readily carried into
effect I have bereunto appended two explanatory sheets of drawings, in the several
Figures of which corresponding parts are marked with the same letters of reference.
In sheet 1, Figure 1, is a sectional elevation of a lock, commonly known as the
Chubb Lock, shewing my improvements applied thereto.
Figure 2, is a plan of Figure 1, taken on the line A. B.
Figure 3, is a detached portion of Figure 1, shewing the shutter open.
Figure 4, is also a plan of Figure 1, but shewing the levers locked or secured.
The shutter a, is hinged or otherwise secured to the inside of the keyhole of the
lock. To this shutter there is pivotted an arm b, with spring c.
This arm b works
in a telescopic tube d. Attached to this arm 6 is a link e engaging with a locking
arm or swivel f, which is pivotted at g. When the key is passed into the keyhole
to the required extent the shutter a is opened as seen more particularly in Figure 3,
and while passing through the shutter moves the arm b, along and the link e which
engages with the locking arm or swivel with it, thereby locking or securing the levers
or bolts and thus preventing them from being shifted as seen more particularly in
Figure 4. When the key is turned, the shutter, by the action of the spring, is
closed and relieves the levers or bolts, so that the lock can be opened in the
ordinary way.

page_text: My improvements being also applicable to what are known as snеck LOCKS,
I have thought it desirable to shew in the drawings my improvements applied to
such locks, of which Figure 5 is a similar view to Figure 2 in sheet 1; and Figure 6
a detached portion of Figure 5.
The several parts in these Figures having been already described I need not herein
further describe them. When the shutter is opened the locking arm or swivel f, is
turned so that the end f¹, engages in the recess cut in the bolts. This prevents the
bolts moving in a horizontal direction.
Under a modification of my Invention I may make the arın 6 work in an eye k, in
place of the telescopic tube d, as shewn in Figures 5 and 6.
I have also shewn my improvements as applied to a combination lock of which
Figure 7, sheet 2, is a plan; Figure 8, a detached portion shewing the shutter closed;
while Figure 9, is also a detached portion shewing the shutter open.
In these Figures the shutter a, is hinged or otherwise secured to the one side of
the keyhole so that when closed it is flush with it. To the inside of the plate of the
lock there is secured a flexible bar 1, with siot m, working in a pin n, to keep it in
position. Inside of the lock there is secured a moveable rod o, the lower part of which
is bent upwards as shewn at p; and when in its normal position rests against the
inside of the frame of the lock. To this rod there is a flange g, resting against the
lever t, which is underneath the bolt n, with pin r, which prevents the lever S, rising
when the bar o, is held down.
When the key is inserted into the keyhole of the lock the shutter a, is opened,
and it, pressing against the flexible rod 1, moves it in a downward direction so that
it lies in front of the bent-up portion p, of the rod o, as shewn in Figure 9 sheet 2
thus preventing it from being moved and so securing the bolt and levers. As the
key is revolved the shutter closes, whereby the flexible bar is released and returns to
its normal position as shewn in Figure 8, so that the rod o, is free to move upwards,
thus allowing the lock to be opened. When the lock has been opened the rod o,
then returns to its normal position by means of the springs, as shewn in Figure 7.
It is to be understood that although I have only shewn my improvements applied to
three different kinds of locks or latches, they may be applicable to any kind of lock
or latch.
Having now particularly described and ascertained the nature of my said Inven
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. The general arrangement and combination of parts constituting my improve-
ments in latches and locks, substantially as bereinbefore described and shown upon
the annexed sheets of drawings.
2. The shutter a, hinged or otherwise secured to the inside of the keyhole of
the lock, with armi b, and spring e, link e, telescopic tube d, and locking arm or
swivel, all operating in the manner hereinbefore described and shewn on the
accompanying sheets of drawings.
3. The shutter a, hinged or otherwise secured to the one side of the keyhole of
the lock; the flexible bar 1, with slot m, working in a pin n, the moveable rod o,
with bent-up end p, and flange q, and pin r, all operating in the manner hereinbefore
described and shewn upon the accompanying sheets of drawings.
Dated this 20th day of March 1890.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents.