A NEW OR IMPROVED BARREL LOCK
Year: 1885

page_text: I THOMAS HENRY BRINDLEY of Retreat Lock Works, Retreat Street, Pen Road
Wolverhampton in the County of Stafford Locksmith do hereby declare the nature
of my said invention for "A NEW OR IMPROVED BARREL LOCK to be as follows
that is to say :-
My invention has for its object a new or improved barrel lock, which is
exceedingly simple in its construction and each particular part is also very simple
to make and yet strong and durable and the whole lock when put together is very
compact and easily mounted in position besides working with great smoothness.
The body, or casing of my locks, is formed of two semi-circular pieces of metal
(say brass) and to the end of one piece is cast the end plate of the lock. The
upper case has a projecting nose piece which falls into the end plate and a suitable
recess for the felloe through which the spindle of the handles pass and by this
means one screw is sufficient to keep the two casings together. I have said that
the bottom casing and the end plate are cast together in one. The bolt or latch
is the next piece which is also one casting with the two rims and the tail of the
latch which has two projections connecting it with corresponding projectings on
the felloe or spindle case. An oblong notch is cast in the tail piece through which
a projection in the bottom casing issues and between this and a forward projection
on the latch a spiral spring is mounted upon a rod and this always tends to keep
the latch outwards.
Immediately above the two rims I fit the key plate in slots in the bottom casing
and this is provided with a forward stop and two aft stops. The bolt comes next.
and is provided with a front and back slot which works over two of the stops and
this bolt I also slotted out at the centre to receive the noses of the key, the top of
the slot baving two or more supplimental slots which form teeth like a rack the
two or more teeth upon the key acting like a pinion in a rack and by this means
a bolt may be thrown almost any distance without deep notches or a long projection
upon the key and this enables me to make the key most compact.
Next comes the lever which is pivoted at the back part upon one of the stops
on the key plate and above the bolt and the front end is notched to fall either at

page_text: the front or back of a projection upon the bolt the under part of the centre is
hollowed out to give an easy motion to the key when lifting it. A small spring
is attached to the back end and also to the third stop on the key plate to keep the
lever down upon the stop except when being actuated by the key. The bolt is
thrown against a projection behind the point of the latch to lock it in its out
position. This class of lock enables the handle to be mounted a long distance from
the key hole. The front plate may be round with a small supplimental snug also
round for one screw so that the whole of the morticing would be done by a brace
and bit or it may be an oblong with round ends for two screws.
1
1007
GEORGE BARKER,
Agent for the Applicant,
77, Colmore Row, Birmingham.

page_text: I THOMAS HENRY BRINDLEY of Retreat Lock Works Retreat Street Penn Road
Wolverhampton in the County of Stafford Lock Smith do hereby declare the
nature of my said invention to be as follows:-
My invention has for its object a new or improved barrel lock which is exceedingly
simple in its construction and each particular part is also very simple to make and
yet strong and durable and the whole lock when put together is very compact and
easily mounted in position besides working with great smoothness.
The body or casing of my lock is formed of two semi-circular pieces of metal
(say brass) and to the said end of one piece is cast the end plate of the lock or they
may be made separate and the casing let into the end plate. The upper case has
a projecting nose piece which falls into the end plate and a suitable recess for the
felloe through which the spindle of the handles pass and by this means one screw
is sufficient to keep the two casings together. I have said that the bottom casing
and the end plate are cast together in one but this may or may not be the case
according to convenience as the effectiveness of the lock does not depend upon it.
The bolt or latch is the next piece which is also one casting with the two reius and
the tail of the latch which has two projections connecting it with corresponding
projections on the felloe or spindle case. An oblong notch is cast in the tail piece
through which a projection in the bottom casing issues and between this and a
forward projection on the latch a spiral spring is mounted upon a rod and this
always tends to keep the latch outwards. "Iminediately above the two reins I fit
the key plate in slots in the bottom casing and this is provided with a forward stop
and two aft stops. The bolt comes next and is provided with a front and back
slot which works over two of the stops and this bolt is also slotted out at the centre
to receive the noses of the key, the top of the slot having two or more supplimental
slots which form teeth like a rack the two or more teeth upon the key acting like
a pinion in a rack and by this means a bolt may be thrown almost any distance
without deep notches or a long projection upon the key and this enables me to
make the key most compact.
Next comes the lever which is pivoted at the back part upon one of the stops
on the key plate and above the bolt and the front end is notched to fall either at
the front or back of a projection upon the bolt the under part of the centre is
hollowed out to give an easy motion to the key when lifting it. A small spring is
attached to the back end and also to the third stop on the key plate to keep the
lever down upon the stop except when being actuated by the key.
The bolt is thrown against a projection behind the point of the latch to lock it
in its out position.
This class of lock enables the handle to be mounted a long distance from the
key hole.
The front plate may be round with a small supplimental snug also round for one
screw so that the whole of the morticing would be done by a brace and bit or iţ
may be an oblong with round ends for two screws.

page_text: In order that my invention may be clearly understood and more easily carried
into practice I have appended hereunto a sheet of drawings upon which I have
illustrated parts of a lock and the key used for the same.
Figure. 1. is an outside view of the lock showing the bolt A key hole B and the
hole C in the felloe D for receiving the shank of the bandle or knob.
Figure. 2. is an end view showing the end plate E and the bolt A therein the
dotted lines show the outside size of the casing F and H.
Figure. 3. is a view of the inner part of the lock with the half casing F removed
which may be done by removing the screw K and lifting the casing and drawing
it back so that the projection m may be brought out of the front plate E.
Figure. 4. is a view of the key showing the two teeth of the key b¹ and 62 for
entering the key hole B clearly shown in Figures 1 and 3.
On reference again to Figure 3 it will be seen that the bolt or latch A extends
along by two side reins to the tail a¹ and that another opening a² is made in the
end thereof finishing with the ears a³ and a more clearly shown in the detached.
views Figure 6. These ears enter suitable grooves in both the casing F and H in
which they slide to steady the movement of the latch. The lever n will be clearly
seen in view Figure 3 but I have shown it also at Figure 5 with its strengthening
bar n¹.
There is nothing special in the bolts or spring R except the teeth or slots t
and which will be seen at the special view of bolt s. It will be noticed that the
special form and construction of the lugs & and d² on the felloe enables me to
throw the latch or bolt a longer distance than usual. It will be understood that in
using the key that the teeth and 2 of the key lift the lever n and entering the
slots t and t of the bolt s shoot it along locking the latch or bolt A which is kept
outwards by the spring R. When the bolt is locked the stump v is on the other
side of the lever noso n².
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
•
The improvements in barrel locks made to follow a centre bit in the edge of
doors or other part and having the latch or bolt A running to the back end in
guides and operated by the lugs d' and d with the special key for throwing the
bolt a long distance substantially as herein set forth.