of Railway Carriages and other Vehicles from the Inside.
Year: 1888

page_text: Date of Application, 21st June, 1888
Complete Specification Left, 20th Mar., 1889-Accepted, 27th Apr., 1889
of Railway Carriages and other Vehicles from the Inside.
I, JOHN CARTER PARK of Bow Road Works, in the County of Middlesex, Locomo-
tive Engineer do hereby declare the nature of this invention to be as follows:-
This invention has reference to means for conveniently operating or actuating the
latches or locks of doors of railway carriages and other vehicles from within such
vehicles, and which shall not be liable on being pushed against or otherwise to cause
unintentional opening of a door and consequent accident.
The arrangement is such that the operating handle provided at the inner side of the
door must have an upward movement imparted to it in order to enable the door
to be opened, so that it will be necessary to deliberately lift up the said handle to
unfasten the door. The inside handle attachment is placed on the door either
above or below, or to one side of the lock or latch spindle, and is connected to
the said spindle by suitable mechanism such as will impart-to the spindle-
motion in a reverse direction to the movement in a rotary sense of the inside
handle that res lts from lifting it to open the door.
According to one construction in which there is an arm or a tooth fixed on the
spindle with which one part of the inside handle engages when moved upward, the
arra ement is such that when the inside handle is in its normal or lowered attitude
the outside handle and spindle can be turned without moving the inside handle.
But various modifications can be employed, and in some cases the inside handle will
be so connected to the spindle that when it is turned by the outside handle the inside
handle will be moved and thus will serve as an indicator.
1000
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicant.

page_text: of Railway Carriages and other Vehicles from the Inside.
I, JOHN CARTER PARK of Bow Road Works in the county of Middlesex, Locomo-
tive Engineer, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention has reference to means for conveniently operating or actuating the
latches or locks of doors of railway carriages and other vehicles, from within such
vehicles, and which shall not be liable on being pushed against or otherwise, to cause
unintentional opening. of a door and consequent accident.
The arrangement is of the kind in which the operating handle provided at the inner
side of the door must have an upward movement imparted to it, in order to enable the
-door to be opened, so that it will be necessary to deliberately lift up the said handle to
unfasten the door. The inside handle attachment is placed on the door either above
or below, or to one side of the lock or latch spindle, and is connected to the said
spindle by suitable mechanism such as will impart to the spindle motion in a reverse
direction to the movement in a rotary sense of the inside handle that results from
lifting it to open the door.
According to one construction in which there is an arm or a tooth or cam, (herein-
after called a tooth) fixed on the spindle with which one part of the inside handle
engages when moved upward the arrangement is such that when the inside handle is
in its normal or lowered attitude the outside handle and spindle can be turned without
moving the inside handle. Various modifications can be employed, and in one case
as hereinafter described the inside handle is so connected to the spindle that when it
is turned by the outside handle, the inside handle will be moved, and thus will serve
as an indicator.
In the annexed two sheets of drawings there are illustrated several modifications of
my invention as adapted in the doors of railway carriages.
Fig. 1. shews in side elevation an arrangement of inside handle attachment wherein
the inside handle is below the ordinary spindle. The cover of the case is removed to
shew the interior mechanism.
Fig. 2 is a vertical section of the same.
Fig. 3 is a horizontal section through a portion of a door, the pillar and other parts
of a vehicle fitted with inside handle attachment illustrated in Figs. 1 and 2. It is
shewn in conjunction with a latch or lock of the kind which-automatically fastens by
the slamming of the door; my invention is particularly applicable to such latches or
locks, although not confined; to them.
Fig. 4 is a similar view-to Fig. 1 shewing an inside handle applied to one side of
instead of below the ordinary spindle.

page_text: Fig. 5 shews an arrangement in which an inside handle according to this invention,
is applied above the ordinary spindle, and geared to it. In this case the inside handle
moves simultaneously with the outside handle, and serves as an indicator to shew
whether the door is latched or not.
Fig. 6 shews a modification of the arrangement illustrated in Fig. 1.
Like letters indicate similar parts in all the figures.
A is the lock or latch spindle, B the outside handle by which it is turned, C, the
inside handle formed with a curved part or tooth, or parts or teeth C¹ (hereinafter
called curved part or curved parts) and mounted on the pivot or stud D. E. a tooth
on the spindle A., F. the case, G. the top or cover of the case, H. the door, I. the
pillar and K. the finger guard.
In Figs. 1. and 6. the handle is shewn pivotted below the lockspindle. Its curved
part C when the handle is raised, bears against the tooth E, and rotates the latch or
lock spindle A. to withdraw the latch or bolt. In Fig. 6 the tooth E. is represented
with a projecting stud E' against which the curved part C¹ bears.
In Fig. 4. the handle is shewn to one side of the lock spindle.
In the arrangement illustrated in Fig. 5 the inside handle has two curved parts C¹C
embracing the tooth E between them. Consequently the handle C has to move
simultaneously with the lock spindle and the outside handle B, at all times. It thus
becomes an indicator to show if the door is latched or not.
I am aware that it has been previously proposed to construct railway carriage door
locks in which the inside and outside handles are mounted on separate spindles
connected by toothed gearing mounted on the said spindles in such a manner that the
door is opened by the lifting of the inside handle, such an arrangement is described in
the Specification of Letters Patent No. 1564 of 1875 granted to Arthur Bilbrough and
it is to be noted that as regards Fig. 5. of my drawings my claim is limited to the
particular arrangement of parts shewn in that figure.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
:-
1. Providing a lock or latch for a railway carriage or other vehicle door with an
inside handle adapted with actuating parts in such a manner to the lock or latch
spindle that whereas an upward or lifting movement of the said handle will cause
partial rotation of the said spindle in a direction to withdraw the bolt and unfasten
the door, if the outside handle and spindle be turned when the inside bandle is in its
normal or lowered attitude, then the inside handle will not be raised.
2. My improved means for actuating the door locks or latches of railway carriages
and other vehicles from the inside substantially as hereinabove described and illustrated
in Figs. 1 to 3 in Fig. 4, in Fig. 5, and in Fig. 6 of the drawings.
| Dated this 20th day of March 1809.
Dated this zot day or March 2009.
J. C. PARK.
Per W. Lloyd Wise,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicant.

page_text: Date of Application, 21st June. 1888
Complete Specification Left, 20th Mar., 1889
Complete Specification Accepted, 27th Apr., 1889
Improvements in the Means for Actuating the Door Locks or Latches
of Railway Carriages and other Vehicles from the Inside.
I, JOHN CARTER PARK of Bow Road Works, in the County of Middlesex, Locomo-
tive Engineer do hereby declare the nature of this invention to be as follows:-
This invention has reference to means for conveniently operating or actuating the
latches or locks of doors of railway carriages and other vehicles from within such
vehicles, and which shall not be liable on being pushed against or otherwise to cause
unintentional opening of a door and consequent accident.
The arrangement is such that the operating handle provided at the inner side of the
door must have an upward movement imparted to it in order to enable the door
to be opened, so that it will be necessary to deliberately lift up the said handle to
unfasten the door. The inside handle attachment is placed on the door either
above or below, or to one side of the lock or latch spindle, and is connected to
the said spindle by suitable mechanism such as will impart-to the spindle-
motion in a reverse direction to the movement in a rotary sense of the inside
handle that results from lifting it to open the door.
According to one construction in which there is an arm or a tooth fixed on the
spindle with which one part of the inside handle engages when moved upward, the
arrangement is such that when the inside handle is in its normal or lowered attitude
the outside handle and spindle can be turned without moving the inside handle.
But various modifications can be employed, and in some cases the inside handle will
be so connected to the spindle that when it is turned by the outside handle the inside
handle will be moved and thus will serve as an indicator.
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicant.

page_text: Improvements in the Means for Actuating the Door Locks or Latches
of Railway Carriages and other Vehicles from the Inside.
I, JOHN CARTER PARK of Bow Road Works, in the county of Middlesex, Locomo-
tive Engineer, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention has reference to means for conveniently operating or actuating the
latches or locks of doors of railway carriages and other vehicles, from within such
vehicles, and which shall not be liable on being pushed against or otherwise, to cause
unintentional opening of a door and consequent accident.
The arrangement is such that the operating handle provided at the inner side of the
door must have an upward movement imparted to it, in order to enable the door to
be opened, so that it will be necessary to deliberately lift up the said handle to
unfasten the door. The inside handle attachment is placed on the door either above
or below, or to one side of the lock or latch spindle, and is connected to the said
. spindle by suitable mechanism such as will impart to the spindle motion in a reverse
direction to the movement in a rotary sense of the inside handle that results from
lifting it to open the door.
According to one construction in which there is an arm or a tooth or cam, (herein-
after called a tooth) fixed on the spindle with which one part of the inside handle
engages when moved upward the arrangement is such that when the inside handle is
in its normal or lowered attitude the outside handle and spindle can he turned without
moving the inside handle. But various modifications can be employed, and in some
cases the inside handle will be so connected to the spindle that when it is turned by
the outside handle, the inside handle will be moved, and thus will serve as an
indicator.
In the annexed two sheets of drawings there are illustrated several modifications of.
my invention as adapted in the doors of railway carriages.
Fig. 1. shews in side elevation an arrangement of inside handle attachment wherein
the inside handle is below the ordinary spindle. The cover of the case is removed to
shew the interior mechanism.
Fig. 2 is a vertical section of the same.
Fig. 3 is a horizontal section through a portion of a door, the pillar and other parts
of a vehicle fitted with inside handle attachment illustrated in Figs. 1 and 2. It is
shewn in conjunction with a latch or lock of the kind which automatically fastens by
the slamming of the door; my invention is particularly applicable to such latches or
locks, although not confined to them.
Fig. 4 is a similar view to Fig. 1 shewing an inside handle applied to one side of
instead of below the ordinary spindle.

page_text: Fig. 5 shows an arrangement in which an inside handle according to this invention,
is applied above the ordinary spindle, and geared to it. In this case the inside handle
moves simultaneously with the outside handle, and serves as an indicator to shew
whether the door is latched or not.
Fig. 6 shews a modification of the arrangement illustrated in Fig. 1.
Like letters indicate similar parts in all the figures.
A is the lock or latch spindle, B the outside handle by which it is turned, C, the
inside handle formed with a curved part or tooth, or parts or teeth C¹ (hereinafter
called curved part or curved parts) and mounted on the pivot or stud D. E. a tooth
on the spindle A., F. the case, G. the top or cover of the case, H. the door, I. the
pillar and K. the finger guard.
In Figs. 1. and 6. the handle is shewn pivotted below the lockspindle. Its curved
part C¹ when the handle is raised, bears against the tooth E, and rotates the latch or
lock spindle A. to withdraw the latch or bolt. In Fig. 6 the tooth E. is represented
with a projecting stud E' against which the curved part C₁ bears.
In Fig. 4 the handle is shewn to one side of the lock spindle.
In the arrangement illustrated in Fig. 5 the inside handle has two curved parts C¹ ('
embracing the tooth E between them. Consequently the handle C has to move
simultaneously with the lock spindle and the outside handle B, at all times. It thus
becomes an indicator to show if the door is latched or not.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
==
1. Providing a lock or latch for a railway carriage or other vehicle door with an
inside handle adapted with actuating parts in such a manner to the lock or latch
spindle that whereas an upward or lifting movement of the said handle will cause
partial rotation of the said spindle in a direction to withdraw the bolt and unfasten
the door, if the outside handle and spindle be turned when the inside handle is in its
normal or lowered attitude, then the inside handle will not be raised.
2. My improved means for actuating the door locks or latches of railway carriages
and other vehicles from the inside substantially as hereinabove described and illustrated
in Figs. 1 to 3 in Fig. 4, in Fig. 5, and in Fig. 6 of the drawings.
J. C. PARK.
Per W. Lloyd Wise,
46, Lincoln's Inn Fields, London, W.C.,
Agent for the Applicant.