Improvements in Railway Carriage and other Sliding Windows.
Year: 1890

page_text: Date of Application, 24th Jan., 1890
Complete Specification Left, 27th Feb., 1890-Accepted, 29th Mar., 1890
PROVISIONAL SPECIFICATION.
Improvements in Railway Carriage and other Sliding Windows.
I, HENRY MOLLISON NICOL, of 11 Dale Street, Glasgow, in the County of Lanark,
North Britain, Engineer, do hereby declare the nature of this invention to be as
follows:-
This Invention relates to improvements in railway carriage and other sliding
windows and has for its object to construct the windows so that they can be opened
from the outside as well as from the inside.
The Invention consists in attaching to each side of the window of the carriage a
rack which works in a pinion secured to the inside of the outside frame or section
of the door. In order to counterbalance the weight of the window and allow it to
be easily moved up or down there is fixed to it a double chain running on the spur
pinion shaft, with a counterpoise weight at the end of it.
Both to the inside and outside of the window there is fixed a rod or other catch
whereby any one either from the outside or inside can with ease open or close the
window.
It is to be understood that my improvements are also applicable to other windows,
such for instance as those in the saloons of steamers, and private carriages.
Dated this 23rd day of January 1890.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents.
COMPLETE SPECIFICATION.
Improvements in Railway Carriage and other Sliding Windows.
I, HENRY MOLLISON NICOL, of 11 Dale Street, Glasgow, in the County of Lanark,
North Britain, 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 :-
My Invention relates to improvements in railway carriage and other sliding
windows, and has for its object to construct the windows so that they can be opened
from the outside as well as from the inside.
In order that my Invention may be properly understood and readily carried into
effect I have hereunto appended three explanatory sheets of drawings in the several
Figures of which corresponding parts are marked with the same letters of
reference.
Figure 1 is a front elevation of a railway carriage door and window looking from
the inside of the carriage.
Figure 2. is a similar view, but shewing the carriage window half open or
nearly so.
Figure 3. is a section through the line a b, Figure 1; while Figure 4 is also a
section through the line cd, Figure 1, both drawn on an enlarged scale.
Figure 5 is a segmental section of the rack and pinion shewing the flange to keep
the rack in gear with the pinion.
My Invention consists in attaching a rack A to each side of the window of the
carriage B, which works in pinions C, connected together by a shaft H, which works
in journals secured to the inside of the outside frame of the door. In order to
counterbalance the weight of the window and allow it to be easily moved up or
down I fix to it a double chain D, or double leather strap, with a counterpoise
weight E at the end of it which works in guides F. This double chain D runs over
pulleys G working loosely on the spur pinion shaft H.

page_text: In order to open or close the window either from the inside or outside I fix to
both the inside and outside of the window a rod I, or other suitable catch, as shewn
in Figures 1, 2, and 3.
In order to keep the rack, in its traverse up and down, always in gear with the
pinion I provide the said pinion with flanges J, as shewn in Figure 5.
In order to keep the window water-tight I may fix on to the ledge a strip of
metal K which projects above the ledge.
I may also make a few of the teeth at the lower end of the rack shorter than
the others, so that they gear closer to the pinion when the window is closed, thus
causing it to fit tight against the ledge, as shewn in Figure 3.
It is to be understood that in place of the racks as herein before described I may
use strips of india-rubber K, leather or other equivalent material, and in lieu of
the pinions I may employ rings or balls L of the same material which serve the
same purpose as the racks and pinions as shewn in Figure 6.
It is also to be understood that my improvements are also applicable to other
windows, such for instance as those in the saloons of steamers and private carriages.
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
1. The general arrangement and combination of parts constituting my improved
railway carriage and other sliding windows, substantially as herein before described
and shewn upon the annexed sheets of drawings.
2. A rack A secured to each side of the window, working in pinions C which are
connected together by a shaft H, and counterpoise E hanging from the window
frame by chains passing over loose pulleys on the shaft, substantially as described
and shewn on the accompanying sheets of drawings.
3. Strips of india-rubber K, leather, or other equivalent material and rings or
balls of the same material in place of the racks and pinions, substantially as
hereinbefore described and shewn on the accompanying drawings.
Dated this 26th day of February 1890.
BOTTOMLEY & LIDDLE,
154, St. Vincent Street, Glasgow, Applicant's Agents. -