IMPROVEMENTS IN LOCKS OR FASTENINGS FOR RAILWAY AND OTHER CARRIAGE DOORS, SUCH IMPROVEMENTS BEING PROVISIONAL SPECIFICATION BEING ALSO APPLICABLE FOR LOCKS OR FASTENINGS USED FOR OTHER ⚫ PURPOSES.
Year: 1881

page_text: LETTERS PATENT to William Henry Saint Aubin, of Bloxwich, in the County
of Stafford, for an Invention of "IMPROVEMENTS IN LOCKS OR FASTENINGS
FOR RAILWAY AND OTHER CARRIAGE DOORS, SUCH IMPROVEMENTS
BEING
PROVISIONAL SPECIFICATION left by the said William Henry Saint
Aubin at the Office of the Commissioners of Patents on the 13th December
1881.
WILLIAM HENRY SAINT AUBIN of Bloxwich in the County of Stafford.
"IMPROVEMENTS IN LOCKS OR FASTENINGS FOR RAILWAY AND OTHER CARRIAGE
DOORS SUCH IMPROVEMENTS' BEING ALSO APPLICABLE FOR LOCKS OR FASTENINGS
USED FOR OTHER ⚫ PURPOSES.'
22
I will first describe my improvements as they relate to locks or fastenings for
railway carriage doors, and from that description their application to locks or
fastenings for other purposes, will be sufficiently plain to be understood without
further special description. The improvements so far as they relate to locks or
fastenings for railway carriage doors, refer to the lock which is morticed into the
door, and is opened by means of the usual handle. The lock or fastening con-
structed according to my Invention may either have one bolt combined with its
follower in one piece, of the ordinary eccentric shape, and turning upon its bosses
in a circular direction through the fore-plate of the case, or it may have two bolts
lying and moving parallel with each other in a horizontal position through the
fore-plate of the case, and being worked by a follower between them.
In constructing a lock or fastening having a bolt and follower combined in one
piece and turning upon its bosses in a circular direction through the fore-plate of
the case, I employ a hook, catch, or striker which projects a little distance through
the top end of the same slot in which the bolt turns in the fore-plate.
The head of this hook, or catch, I preferably bevil or round each way to strike
either right or left handed, and besides acting as a striker, it also retains the bolt
when in an unlocked position.

page_text: This hook, catch, or striker works upon a stud or pin in the lock case, and is
pressed down by a suitable spring which forces it over the front of the top left-
hand corner of the bolt, and holds it in position unlocked: when flush with the
fore-plate. At the back of the bolt I employ a lever working upon a stud or pin
about the centre of the lock case, and which is pressed forward by means of a
double-reined or other suitable spring having a small roller in that end which bears
or presses against the top end of the lever. In the bottom edge of the end of the
lever as well as the bottom edge of the end of the bolt, and nearest the bosses thereon
I cut or cast a slot or groove, for the reception of a swivel or lever of a semi
circular shape which I hinge or gear into the bolt and lever, by means of small
screws or pins which I pass through the bolt and swivel, and lever and swivel, and
upon which the swivel turns upon either end. When the door is closed the
bevilled or rounded head of the hook, catch, or striker, is brought in contact with
an inclined recess formed in the striking-plate which has also a slot or recess for
the reception of the bolt, when the hook, catch, or striker is released from the head
of the bolt and the pressure of the spring bearing against the top end of the lever,
causes the bottom end to pull the swivel, or lever, out of the slot or groove in the
bottom edge of bolt which causes it to simultaneously turn in the manner afore-
said into the slot or recess in the striking-plate, and the door is thereby securely
fastened. I also construct a lock or fastening as before stated having two bolt,
viz a square-headed bolt and a striking-bolt, lying and moving parallel with each
other, in a horizontal direction through the fore-plate, and being pressed or shot
forward by spiral or other suitable springs.
The head of the striking-bolt I preferably bevil each way, to strike either right
or left-handed, but I do not claim the bolt head in this way as the same has been
applied to locks before. What I claim is a square-headed bolt and a striking-bolt
having on their under sides a small stud which moves in slots or guides in the case,
or they may have slots or guides moving upon studs in the said case. I also
employ a follower which turns in a hole in the middle of the case, and between the
two bolts. This follower has what is termed in the lock trade, a horn on that
side nearest the square-headed bolt, which gears into a recess or gating therein,
similar to the recess between two teeth of a cog-wheel. The back part of the
follower and farthest from the fore-plate I make square, and the upper part on the
opposite side of the horn is shaped or formed to a convex curve, such convex curve
being struck from the centre of the square spindle hole therein and a corresponding
concave curve is formed in the striking-bolt nearest the follower. The lower part
of the striking-bolt, and immediately adjoining the concave curve, I make square,
to correspond with the square on the back part of the follower. When the door is
closed, the head of the striking-bolt is brought in contact with the plain part of
the striking-plate, which causes the striking-bolt to recede into the lock case and
thereby the square part immediately adjoining the concave curve therein, and
which had previously coincided with the square part of the follower, is moved
therefrom, and by the pressure of the spring bearing against the tail of the square-
beaded bolt, into which the horn of the follower is geared, the square-headed bolt
is pressed or shot forward into the striking-plate, which turns the convex curve on
the follower into the concave curve in the striking bolt, and the same is held back
by the aforesaid curves coinciding, and the door is securely fastened. As the square-
headed bolt is drawn back by the turn of the handle the convex curve on the
follower is moved out of the concave curve in the striking-bolt, and when the
door is opened the striking-bolt is again shot forward by the pressure of its spring,
when the square parts on the follower and striking-bolt, again coincide and the
square-headed bolt thereby held back in the luck case. This Invention may be
used for various purposes, such for instance as fastenings for carriage and other
doors generally, the doors of prison cells, and ration doors thereof, sash fasteners
for windows and for most purposes where similar fasteners are required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent and
of an Order of the Lord Chancellor filed by the said William Henry Saint
Aubin in the Great Seal Patent Office on the 28th June 1882.
WILLIAM HENRY SAINT AUBIN of Bloxwich in the County of Stafford, Pattern
Maker. "IMPROVEMENTS IN LOCKS OR FASTENINGS FOR RAILWAY AND OTHER
CARRIAGE DOORS, SUCH IMPROVEMENTS BEING ALSO APPLICABLE FOR LOCKS OR.
FASTENINGS USED FOR OTHER PURPOSES."
I will first describe my improvements as they relate to locks or fastenings for
railway carriage doors, and from that description, their application to locks or
fastenings for other purposes will be sufficiently plain to be understood without
further special description.
The improvements so far as they relate to locks or fastenings for railway carriage
doors, refer to the lock which is mortised into the door and is opened by means of
the usual handle.
The lock or fastening constructed according to my Invention may either have
one bolt (as shown in Figs. 3. and 4) combined with its follower in one piece of
the ordinary eccentric shape, and turning upon its bosses in a circular direction
through the fore plate of the case, or it may have two bolts lying and moving
parallel with each other in a horizontal position (as shown in Figs. 1. and 2)
through the foreplate of the case, and being worked by a follower between them.
In constructing a lock or fastening having a bolt and follower combined in one
piece and turning upon its bosses in a circular direction through the fore plate of
the case, I employ a hook, catch, or striker A (Fig. 3) which projects a little distance
through the top end of the same slot in which the bolt turns in the fore plate.
The head of this hook or catch I preferably bevel or round each way to strike
either right or left-handed, and whilst acting as a striker, it also retains the bolt
when in an unlocked position.
This hook, catch, or striker works upon a stud or pin in the lock case, and is
pressed down by a suitable spring B which forces it over the front of the top left
hand corner of the bolt C and holds it in position when unlocked, flush with the
fore plate.
At the back of the bolt I employ a lever D working upon a stud or pin E about
the centre of the lock case, and which is pressed forward by means of a double
reined or other suitable spring having a sinall roller in that end which bears or
presses against the top end of the lever.
In the bottom edge of the end of the lever, as well as the bottom edge of the
end of the bolt, and nearest the bosses thereon, I cut or cast a slot or groove, for the
reception of a swivel or bolt F of a semi-circular shape which I hinge or gear into
the bolt and lever by means of sinall screws or pins which I pass through the
bolt and swivel, and lever and swivel, and upon which the swivel turns on either
end.
When the door is closed, the bevelled or rounded head of the hook, catch, or
striker is brought in contact with an incline recess formed in the striking plate,
which has also a slot or recess for the reception of the bolt, and the pressure of the
spring bearing against the top end of the lever, causes the bottom end to pull the
swivel or lever out of the slot or groove in the bottom edge of the bolt which
causes it to simultaneously turn in manner aforesaid into the slot or recess in the
striking plate, and the door is thereby securely fastened.
I also construct a lock or fastening as before stated, having two bolts (as shown
Figs. 1 and 2) namely, a square-headed bolt A, and a striking bolt B lying and
moving parallel with each other in a horizontal direction through the fore plate

page_text: and being pressed or shot forward by spiral or other suitable springs CC. The
head of the striking bolt I preferably bevel each way to strike either right or left
handed, but I do not claim the bevelling of the bolt-head in this way as the same
has been applied to locks before.
What I claim is a square-headed bolt, and a striking-bolt, having on their under
sides a small stud DD which moves in slots or guides E E, in the case of
the lock, or they may have slots or guides moving upon studs in the said
case.
I also employ a follower F which turns in a hole about the middle of the case
and between the two bolts. This follower has what is commonly termed in the
lock trade, a horn G on that side nearest the square headed bolt which gears into
a recess or gating H therein, similar to the recess between the teeth of a cog wheel.
The back part of the follower I and farthest from the fore plate I make square,
and the upper part on the opposite side of the horn is shaped or formed to a
convex curve a Fig. 2. such convex curve being struck from the centre of the
square spindle hole therein, and a corresponding curve is formed in the striking
bolt Fig. 2. nearest the follower. The lower part of the striking bolt
immediately adjoining the concave curve, I make square c Fig. 2. to correspond
with the square in the back part of the follower.
When the door is closed, the head of the striking bolt is brought in contact with
a plain part of the striking-plate, which causes the striking bolt to recede into the
lock case, and thereby the square part c Fig. 2 immediately adjoining the concave
curve therein, and which had previously coincided with the square part of the
follower is moved therefrom, and by the pressure of the spring C bearing against
_the_tail_of_the_square-headed-bolt-into-which-the-horn of the follower is geared the
square-headed bolt is pressed or shot forward into the striking plate, which turns
the convex curve a Fig. 2 in the follower into the concave curve in the striking
bolt, and the same is held back by the aforesaid curves coinciding, and the door is
securely fastened. As the square headed bolt A is drawn back by the turn of the
handle, the convex curve on the follower is moved out of the concave curve in the
striking bolt, and when the door is opened the striking bolt is again shot forward
by the pressure of its spring, when the square parts on the follower and striking bolt
again.coincide and the square headed bolt thereby held back in the lock case.
This Invention may be used for various purposes, such, for instance, as fastenings
for carriage and other doors generally, the doors of prison cells and ration doors
thereof, sash fasteners for windows and for most purposes where similar fastenings
are required.
Having thus described the nature of my Invention and the manner of carrying
it into effect, I would have it understood that I do not confine myself to the precise
details above enumerated as these may obviously be modified without departing from
the principle of my Invention but what I claim and desire to secure by the said
Royal Letters Patent, is.
The improvements in locks or fastenings for railway or other carriage doors, or for
other purposes above described and represented in the accompanying Drawings.
In witness whereof, I, the said William Henry Saint Aubin, have hereunto
set my hand and seal this
day of
in the year of our Lord
One thousand eight hundred and eighty two.
WILLIAM HENRY SAINT AUBIN. (LS.)