IMPROVEMENTS IN RAILWAY AND OTHER CARRIAGE DOOR LOCKS follows
Year: 1884

page_text: I EDWIN ROBERT WETHERED of 100 Herbert Road Woolwich in the County
of Kent Lieu* Colonel do hereby declare the nature of my invention for
» to be as
"IMPROVEMENTS IN RAILWAY AND OTHER CARRIAGE DOOR LOCKS
follows:-
In the latches and locks described in two former patents granted to me viz.
N° 482 in the year 1882 and N° 1391 in the year 1883 the tumbler or follower
which operates on the bolt, and through which the spindle for handle passes is
placed in a slot in the heel of the bolt-To enable this lock to be applied to railway
or other carriage doors I now place the spindle and follower outside and below
the front end of, the bolt, within / of an inch of the front end of the lock case,
through which the bolt passes-I make the arm of the follower longer, and at the
extreme end place a pin which enters a slot in the lower edge of bolt, or vice
versa, by which means the bolt is pulled back within the lock case, and at the same
time pulled down when it has passed fully in, to ensure the tooth of bolt being
brought below the holding stud, and thus assist the tilting inclination of the spiral
spring, or instead of the pin and slot, the follower may have a hooked end acting
upon a corresponding curve in the lock bolt.
To keep the bolt level when it is drawn within the lock case, and the front end
drops behind the retaining stud, I cut an inclined slot in the lock plate, and fix
a pin on the heel of the bolt, or vice versa, to work in the slot, so that the heel of
the bolt is inclined downwards as the bolt is withdrawn within the lock case--
In locks where the follower is placed in a slot in the heel of the bolt, I make the
slot to incline so that when the bolt is withdrawn within the lock case, the heel of
the bolt is inclined downwards as the inclined slot passes the axis of the follower.

page_text: I EDWIN ROBERT WETHERED of Woolwich in the County of Kent, Lieut
Colonel do hereby declare the nature of my invention for "IMPROVEMENTS IN
RAILWAY AND OTHER CARRIAGE DOOR LOCKS and in what manner the same is
to he performed, to be particularly described and ascertained in and by the
following statement :-
In the latches and locks described in two former patents granted to me viz
No 482 in the year 1882, and N° 1391 in the year 1883 the tumbler or follower
which operates on the bolt, and through which the spindle for handle passes, is
placed in a slot in the heel of the bolt; to enable this lock to be applied to a
railway or other carriage door I now place the spindle and follower outside and
below the front edge of the bolt instead of the heel, within 6/8th of an inch of the
front end of the lock case, through which the bolt passes, I make tlie arm of the
follower longer, and at the extreme end place a pin which enters a slot in lower
edge of bolt, or vice versa, by which means the bolt is pulled back within the lock
case, and at same time pulled down, when it has passed fully in, to ensure the tooth
being brought below the holding stud, and thus assist the tilting inclination of
the spiral spring, or instead of the pin and slot the follower may have a hooked
end acting on a corresponding curve in the lock bolt.
To keep the bolt level when it is drawn within the lock case, and the fore end
drops behind the retaining stud, I cut an inclined slot in the lock case, and fix a
pin in the heel of the bolt, or vice versa, to work in the slot so that the heel of
the bolt is inclined downwards, as the bolt is withdrawn within the lock case-
In locks where the follower is placed in a slot in the heel of the bolt I make the
slot to incline so that when the bolt is withdrawn within the lock case, the heel of
the bolt is inclined downwards, as the inclined slot passes the axis of follower.
Fig. 1 is a side view of the lock and striking plate, with the side plate of lock
case removed, shewing the position of the bolt, and tumbler or follower when the
door is closed Fig. 2 is a similar view of the lock shewing the position of the
bolt and follower when the door is open.
Fig 3 is a side view and Fig. 4-a front view of the striking plate-A is the lock
case B is the bolt-C the tumbler or follower D the pin and slot in follower
and bolt-E is the stud in the lock case which holds the bolt back within the
lock case-F is the tooth of bolt which drops behind the stud E-G is the guide
slot in the lock case to incline the heel of bolt down as the bolt is withdrawn
within the lock case-It is the incline on striking plate which enters the recess
in lock case as the door is closed, and raises the nose of the bolt B to free it from
the retaining stud E.
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
1st My improvements in railway and other carriage door locks, consisting in
the construction of a bolt and follower combined with the other parts substantially
as described.

page_text: 2nd My improvements in railway and other carriage door locks as above
described in combination with an incline on the striking plate projecting into the
door way, and received into a corresponding recess in the lock case, an essential
feature in the Specification of my patent No 482-31st Jany 1882.