IMPROVEMENTS IN LOCKS FOR RAILWAY AND OTHER CARRIAGE DOORS AND OTHER ANALOGOUS PURPOSES to be as follows:
Year: 1886

page_text: Date of Application, 30th July, 1886.
Complete Left, 9th Nov., 1886.
Complete Accepted, 11th Jan., 1887.
other Analogous Purposes.
We FELIX JONES and JOHN SLATER FOSTER, both of 39 Bloomsbury Street
Birmingham in the County of Warwick, Manufacturers, do hereby declare the
nature of our invention for "IMPROVEMENTS IN LOCKS FOR RAILWAY AND OTHER
CARRIAGE DOORS AND OTHER ANALOGOUS PURPOSES to be as follows:-
"
In constructing a lock according to our improvements, we produce a double action
upon one bolt, which is shot out in a horizontal direction, that is to say, at right-
angles with the fore end of the lock case.
In giving this double or locking and latching action-to the bolt, we employ what
is commonly known in the lock trade as a follower, having an axis on either side,
through which there is a square hole for the reception of the spindle to which is
attached the usual handle.
This follower has on the front side of it a circular projecting nose piece which is
geared or gated into a recess on the side of the bolt, and upon the back side of the
same that is the follower-we form a rounded projecting piece which terminates on
either side in a semicircular recess, from which recess on the upper side nearest the
bolt there rises in an angular direction a slightly rounded projection.
At the back of the follower and turning upon a stud or pin in the back plate of
the lock case, we employ a lever, having a roller on one end, which bears against the
back of the follower, and is actuated by a double reined feather, or any other suitable
spring which presses or bears against the other end of the lever."
When the bolt is fully shot out in a locked position, the handle upon the spindle is
in a horizontal position, and the roller in the end of the lever bears in the semicircular
recess below the centre of the follower, and underneath the rounded projecting piece
thereon, while the circular nose piece on the front side abuts against the front of the
recess in the bolt, which, by the pressure of the spring forcing the lever with its roller
against the under side of the beforementioned rounded projecting piece, the bolt is
held firmly in position and cannot be forced back until the handle is turned.
Upon turning the handle to unlock it the rounded projecting piece upon the
follower forces back the lever until it has passed the centre, when the roller end falls
ED

page_text: into the semicircular recess above the rounded projecting piece, when the handle
having received about one eighth of a turn of the circle, and the bolt is partly
unlocked.
Upon giving the handle another one eighth of a turn the bolt is fully withdrawn
and the door may be opened, but immediately the handle is released the bolt resumes
its latter position with its bevilled head projecting, and upon forcing or pulling the
door to, so soon as the bevilled part comes in contact with the edge of the striking-
plate upon the door frame, the bolt is forced back until opposite the hole therein for
its reception, when the force of the spring causes it to enter and the door is partly yet
securely locked, but upon giving the handle another turn the bolt is shot forward
again and doubly locked.
We do not however strictly confine ourselves to the exact details herein described
as the same may be open to some slight modification.
W. H. ST. AUBIN,
Patent Agent,
Bloxwich.

page_text: other Analogous Purposes.
We FELIX JONES and JOHN SLATER FOSTER of 39 Bloomsbury Street Birmingham
in the County of Warwick, Manufacturers do hereby declare the nature of our
invention for "IMPROVEMENTS IN LOCKS FOR RAILWAY AND OTHER CARRIAGE DOORS
AND OTHER ANALOGOUS PURPOSES" and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
In constructing a lock according to our improvements we introduce a double action
upon one bolt, which is shot out in a horizontal direction—that is to say—at right-
angles with the fore end of the lock case.
In giving this double or locking and latching action-to the bolt, we employ what
is commonly known in the lock trade as a follower Figs. 6 & 7 having an axis on
either side, through which there is a square hole for the reception of the spindle to
which is attached the usual handle.
This follower has on the front side of it a circular projecting nose-piece—“a”—Fig. 6
which is geared or gated into a recess "6"-in the side of the bolt Figs. 4 & 5, and
upon the back side of the same we form a projecting piece which terminates on one
side in a semicircular recess, from which recess on the upper side nearest the bolt
there rises a slightly rounded angular projection-"f”—Fig. 6.
At the back of the follower and turning upon a stud or pin in the back-plate of the
lock case we employ a lever-Figs. 8 & 9 having a roller-"c" on one end which
bears against the back of the follower and is actuated by a spring—“d”—Fig. 2—
which presses or bears against the other end of the lever.
Fig. 1 shews the lock with the cover-plate removed and having its bolt partly shot
in position for striking to upon closing the door, the dotted lines shewing the bolt as
withdrawn before opening the door.-Fig. 2 shews the bolt fully locked out-Fig. 3 is
a back view of the same.
Fig. 10 shews a modification of this our improvement in which we employ a semi-
circular bolt, through which the spindle passes, and working within the front or fore-
end of the lock case- -There is however nothing new in the semi-circular bolt, except
in its application to locks of this kind and in combination with the "double action"
mechanism forming the subject of our invention.
Through the back of the lock case we form and aperture"e"-for the reception
of a staple which is shewn upon the drawing.-In this drawing however we have
omitted the insertion of the spring, but it will be understood that the bolt is actuated
in the same way as in the other case.

page_text: 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 double-action device substantially as described and illustrated by the
accompanying drawing.
2. The application of a semi-circular bolt in combination with the double-action
device substantially as described and illustrated by the accompanying drawing.