IMPROVEMENTS IN AND APPLICABLE TO THE SASHES OF RAILWAY AND OTHER CARRIAGE DOORS 'to be as follows:
Year: 1884

page_text: I JOHN EATON, of 135 Shaw Heath, Stockport, in the County of Chester,
Machinist, do hereby declare the nature of the said invention for "IMPROVEMENTS
IN AND APPLICABLE TO THE SASHES OF RAILWAY AND OTHER CARRIAGE DOORS
'to be as follows:-
"
This invention relates to improvements in and applicable to the sashes of
railway and other carriage doors whereby the sashes are so hung or suspended that
they can be raised and lowered into and kept in any position in a much simpler
and easier manner than hitherto, rattling of the sashes is prevented and no straps
are required for raising and lowering the sashes.
In carrying out my invention I adapt to each corner of the sash a swinging
pulley or roller the said pulleys or rollers running in grooves in the sides of the
door frame in such a manner as to allow the sash when raised and lowered to
follow the usual curve of the door and to pass over the usual weather bar.
I provide a roller near the bottom of the sash frame and running in suitable
bearings, over the roller pass cords, or their equivalents carrying a weight or
weights so as to slightly overbalance the weight of the sush. To the said roller I
adapt a break which may be operated in any suitable manner such as by means of
a push piece.
By this arrangement to raise the sash it will be merely necessary to press the
said push piece and the roller being thereby released from the pressure of its break.
the sash will automatically rise and may be fastened in any position by removing
pressure from the said push piece-To lower the sash it simply requires to be
pulled down.
G. F. REDFERN,
4, South Street, Finsbury,
Agent for the Applicant,

page_text: COMPLETE SPECIFICATION.
"
I, JOHN EATON of 135 Shaw Heath Stockport in the County of Chester,
Machinist do hereby declare the nature of the said invention for " IMPROVEMENTS
IN AND APPLICABLE TO THE SASHES OF RAILWAY AND OTHER CARRIAGE DOORS
and in what manner the same is to be performed to be particularly described and
_ascertained in and by the following statement:—
This invention relates to improvements in and-applicable-to-the-sashes-of-railway-
and other carriage doors whereby the sashes are so hung or suspended. that they
can be raised and lowered into and kept in any position in a much simpler and
easier manner than hitherto, rattling of the sashes is prevented and no straps are
required for raising and lowering the sashes.
In order to enable my invention to be fully understood-I-will-proceed-to-
describe the-same by reference_to_the_accompanying drawing in which figure 1,
sheet 1, represents an elevation of a railway or other carriage door with sliding
-sash-and-shewing-my-improvements-applied thereto, the inner side of the door
being removed and the sash being shewn in its closed or raised position; figure 2,
sheet 1, is a vertical transverse section of the door and sash taken through the
line A B of figure 1; figure 3 sheet 1 is a vertical section on the line C D of
figure 1, the sash not being shewn; figure 4 sheet 1 is a similar view to figure 1
but shewing the sliding sash in its open or lowered position; figure 5 sheet 1 is an
edge view of the sliding sash and figure 6 sheet 1 is a detached elevation on a
larger scale of part of the sliding sash; figure 7 sheet 1 is a detached sectional
view on a larger scale of one form of break I employ; figura 8 is an elevation of
a railway or other carriage door with the inner side thereof removed shewing an
arrangement I employ when the break acts on the weight. Similar letters in all
the figures represent similar parts.
a represents a sliding sash of the ordinary construction; to each of the upper
corners of the sash I adapt a roller b, the said rollers revolving in. swinging or
pivotted bearings c, as clearly shewn in figure 6, or the rollers b may revolve in
fixed bearings; d d are rollers revolving in fixed bearings e at the lower corners of
the sash and projecting beyond the edges of the sash as shewn in figure 6; the
rollers b run in grooves ff in the upper part of the sides of the sash frame g, of
the door, and the rollers d run in grooves h h in the lower part of the frame g;
the said grooves h are deep enough up to the point i to receive the rollers d, and
the edges of the sliding sash a; the grooves fand h are not formed in a line with
each other but at such an angle as shewn in figure 3 as will allow the sash a when
being raised and lowered to approximately follow in its course the usual curved
shape of the door (or the grooves f and h may be arranged in a line with each
other) the rollers 6 permitting the sash to travel at an angle to the said grooves ;
the grooves h are curved at their upper part above the point i as shewn in
figure 3, to cause the sash a to pass over the weather bar j, as shewn in figure 2,
for this purpose the said curved part of the grooves is made of such a depth only

page_text: as will just allow the portion of the rollers & which projects beyond the edges of
the sash to travel therein and the bottom part of the sash being then free of the
groove h will be free to pass over the weather bar as described. Near the top of
the grooves h, I provide a roller k running in bearings 1, 1, (or pulleys may be
employed) fixed to the door g; over the roller k pass cords m or their equivalents,
one end of the said cords being suitably attached to the lower part of the sash
such as to projections n, the other ends of the cords m carry a weight o, (or
weights) which weight is provided with rollers a' running in grooves b¹ in the
door whereby it is prevented from swinging when the carriage is in motion, the
weight o is sufficient to slightly over balance the weight of the sliding sash a; to
the roller I adapt a break p pivotted at p¹ which break normally is caused to
press against the roller k by means of a spring 9 (or by a weight as hereinafter
described) to such an extent as to cause the weight o to counterbalance or nearly
counterbalance the weight of the sash a; m' is a push piece passing through from
the break p, to the inner side of the door and serving to operate the said break to
release it from pressure upon the roller k; r and s are projections on the sash a by
which to lower the same.
When a weighted break is employed the arrangement shewn in figure 7, answers
well; k, represents the roller and p the break provided with a weight q', which
can be raised so as to release the break by a finger piece or knob ml.
By this arrangement the parts being in the position shewn in figure 4 to raise
the sash a it will be merely necessary to press the said push piece m¹ figure 2, and
the Roller & being thereby released from the pressure of its break p, the sash a,
will be automatically caused to rise by the weight o overbalancing the weight of
the sash and it may be fastened in any position by removing pressure from the
push piece m; if the pressure on the push piece m' be continued the sash, in rising,
will be caused by means of it lower rollers d, d, running in the curved part of the
grooves h, (and the pressing action of the cords m, on the projections n,) to be
passed forward over the weather strip j. To lower the sash a, it simply requires
to be pulled down by means of the projections r and s and it will remain in any
position to which it may be lowered.
Although I have described and shewn the break p, operated by means of a push
piece m' it will be understood that any other suitable means of operating the same
may be employed.
In the arrangement shewn in figure 8 the break is caused to act directly on the
weight; p is the break which consists of a vertical bar pivotted to the frame g, of
the door at p p and kept pressed against the weight o, by means of a spring such
as that shewn at q, in tig: 2 and situated under the push piece m¹; the cords m, in
this case would be passed over two separate rollers k, k; b', b' are the guides in
which the ends of the weight o travel and between which guides and the break P,
the weight is compressed except when pressure is applied to the push piece m' to
raise the sash.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
(1) A sliding sash for railway and other carriage doors which is automatically
raised into any required position by the release of a break whereby the sash is
overbalanced by its counterweight, the said break when in its normal position
operating against a roller (or pulleys) so as to keep the sash in any position to
which it may be raised or lowered as hereinbefore described and represented in the
accompanying drawing.
(2) A sliding sash for railway and other carriage doors having rollers b. b.
and d. d. the said rollers respectively running in grooves f., f, and h., h., placed at an
angle to or in a line with one another the grooves h, being curved and decreased
in depth at their upper part substantially as and for the purpose hereinbefore
described and represented in the accompanying drawing.

page_text: (3) The combination with a sliding sash for railway and other carriage doors
constructed as described and provided with cords or their equivalents carrying a
counterweight or weights, of a roller (or pulleys) running in bearings in the door
and a break so arranged that when the said break is released by suitable means
such as that described the said counterweight or weights will raise the sash
substantially as hereinbefore described and represented in the accompanying
drawing.
(4) The improved sliding sash for railway and other carriage doors and means
for operating the same substantially as hereinbefore described and represented in
the accompanying drawing.