Improvements in Sliding Windows for Carriage Doors.
Year: 1889

page_text: Date of Application, 23rd Dec., 1889
Complete Specification Left, 6th Feb., 1890-Accepted, 8th Mar., 1890
PROVISIONAL SPECIFICATION.
Improvements in Sliding Windows for Carriage Doors.
JOSEPH LAWTON, 20 Bower Street, Hanley, County of Staffordshire Journalist do
hereby declare the nature of this invention to be as follows:-
This my Invention relates to improvements which are more particularly applicable
to the sliding windows of Railway Carriages and similar vehicles, whereby I dispense
with straps, and the window can be easily raised or lowered by a passenger without
the necessity of rising from his sent.
On
Into each side edge of the window sash I fix a tongue or plate of suitable material
preferably metal, which when the window is being raised or lowered, slide in longi-
tudinal slots formed in strips or plates of metal attached to the inside edges of the
door frame, the said tongues of metal extending a short distance into the grooves
or recesses formed in the door frame, and make the said window and frame
draughtless, and by forming or attaching a ridge or projections on the said tongues
of metal, I prevent lateral motion, and all rattling of the sash in its franie.
the inside of door frame adjacent to the edge where the hinges are fixed I form
a longitudinal slot having indents or notches formed on one or both edges, the said
slot being made at about right angles to the slot in the strips or plates of metal
aforesaid, and in which a pin or bolt slides, one end of which is screwed into, or
otherwise attached to the tongue or plate, the outer end having a knob of any suitable
material, shape and size attached thereto which said knob on its lower portion has
a projection or longue for fitting or engaging into the indents or notches on the
edge or edges of the aforesaid slot.
Presuming the window to be down, and required to be closed, it is only necessary
to lift the window by the knob till in its highest or closed position, and then give
the knob a slight turn, when the projection on the base of the said knob will enter
the top indent or notch and keep the said window in its closed position.
Inside the door frame at its base I place a spring of suitable material, shape and
size to lessen concussions made by the window sash when suddenly let fall.
Dated 21st day of December 1889.
J. NEWTON,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Sliding Windows for Carriage Doors.
JOSEPH LAWTON, 20 Bower Street, Hanley County of Staffordshire, Journalist 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 my Invention relates to improvements which are more particularly applicable
to the sliding windows of Railway Carriages and similar vehicles, whereby I dispense
with straps, and the window can be easily raised or lowered by a passenger without
the necessity of rising from the seat.
Into each side edge of the window sash I fix a tongue or plate of suitable material
preferably metal, which when the window is being raised or lowered slide in slots
formed in or by plates of metal attached to the inside edges of the door frame, the said
tongues or strips of metal extending a short distance into grooves or recesses formed
in the door frame, and make the said window and frame draughtless, and by forming
or attaching a ridge or projections on the said tongues of metal, I prevent lateral
motion, and all rattling of the sash in its frame. On the inside of the door frame

page_text: vertical sloth formed on inside of door frame which is faced with metal strips e, and
screwed into the projection & fixed to, or formed on the metal tongue c³, the knob e is
next placed or slid on the outer or projecting part of the pin g and held thereon by a
nut or washer e, the projection f on the base of knob being placed in the aforesaid
vertical sloth so as to slide therein, the top bar a² of the door being placed in position,
the said window is ready for use.
Fig. 1. shews a window partially closed, and supported in that position by the
projection on the base of knob e fitting or engaging into one of the indents or
notches i formed in the edge of the vertical slot h. Presuming it is desired to have
the window closed, it is only necessary to lift the window sash c* by the knob e and
ping until the end of the projection is above the edge of the top notch, then by
giving the knob e a slight twist and lowering the window at the same time, the said
projection f is caused to enter the said top notch and keep the window closed.
A spring or springs of any suitable material shapo and size may be placed inside
the door frame at its base, to lessen, concussions made by the window when suddenly
let fall.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1st. The construction, shape and use of the various parts herein described, which
are applicable to the sliding windows of carriage doors for the purposes herein
substantially described, set forth, and fully illustrated on the drawings hereunto
annexed.
2nd. The use of sliding windows, and doors constructed as herein described, in
or on Railway Carriages, Road vehicles, such as cabs, omnibusses, tramcars, and the
like, in the manner and for the purposes herein specified.
J. NEWTON,
Agent for Applicant.