IMPROVEMENTS IN MEANS OR. APPARATUS FOR LOCKING AND UNLOCKING RAILWAY CARRIAGE DOORS
Year: 1878

page_text: LETTERS PATENT to. Stanhope Albany Say, of 23, Southampton Buildings; in
the County of Middlesex, for the Invention of "IMPROVEMENTS IN MEANS OR.
APPARATUS FOR LOCKING AND UNLOCKING RAILWAY CARRIAGE DOORS."
Sealed the 28th March 1879, and dated the 9th October 1878.
PROVISIONAL SPECIFICATION left by the said Stanhope Albany Say at the
Office of the Commissioners of Patents on the 9th October 1878.
STANHOPE ALBANY SAY, of 23, Southampton Buildings, in the County of Mid-
dlesex. "IMPROVEMENTS IN MEANS OR APPARATUS FOR LOCKING AND UNLOCKING
RAILWAY CARRIAGE DOORS."
The Invention has for its object improvements in means or apparatus for simul-
taneously locking and unlocking all the doors of a railway train.
For this purpose in addition to the ordinary handle fastenings I mount in suitable
bearings underneath each carriage a length of shafting provided with universal
joints, and with extensible couplings so as to enable cach length to be coupled to
an adjoining length, and at the same time permit of the free movement of the
carriages around curves, and of the shortening or lengthening of the distance between
the carriages within certain limits.
On each length of shafting I fix as many screws, cams, or other connections as
there are doors on one side of the carriage, and I cause these screws, cams, or other
connections to operate levers, which are connected to locks or bolts. Thus by
giving motion to the shafting by means of a handle and gearing in the guard's van
or in any other desired part of the train, all the said bolts or locks of a train may
be simultaneously locked or unlocked as may be desired.
The bolts or locks I place close to the ordinary handle fastenings, and within the
pannellings of the carriage, and I bevil the front ends of such bolts or locks and
spring them in order to enable a door to be closed and locked, even after all such
bolts or locks have been shot. Similar apparatus is applied for the doors on each
side of a carriage.

page_text: employed, and I cause these screws f (or the cams or other connections) to operate
levers g mounted on centres of motion g', and which are connected to locks or
bolts h.
In the arrangement shown rotary motion is given to the shafting e by means of
a handle in the guard's van, which handle is fixed to the upper end of a shaft
or axis i, on the lower end of which is fixed a bevel pinion 2 which takes into and
gives motion to a bevel pinion j fixed on the shafting e. The bolts or locks are
each formed in the shape of a lever mounted on an axis of motion h¹, and provided
at its upper end with one or more catches or bolts 2 connected to such lever by a
spring h³, and I place these catches or bolts h2 close to the ordinary fastenings, and
within the pannellings of the carriage, and I bevel the front ends of such catches or
bolts h in order to enable a door to be closed and locked even after all such bolts or
catches have been shot.
Thus by giving rotary motion to the shafting e by means of the handle all the
bolts or catches on one side of a train may be simultaneously locked or unlocked
as may be desired.
Similar apparatus is applied for the doors on each side of a carriage, and such
apparatus may be simultaneously operated by a single shaft e, or they may be
separately operated by providing a separate shaft e for each side of the carriage.
Figure 9 represents a cam, which may be used to operate the levers g in lieu of
the screws f
Having thus described the nature of my said Invention, and the mode in which
I carry the same into effect, I would have it understood that what I claim is the
peculiar arrangement and combination of parts for simultaneously locking and un-
locking all the doors on one or both sides of a railway train, substantially as herein
shown and described.
In witness whereof, I, the said Stanhope Albany Say, have hereunto set my
hand and seal, this Eighth day of April, in the year of our Lord One
thousand eight hundred and seventy-nine.
STANHOPE ALBANY SAY. (L.S.)