A Method of Raising, Lowering, Balancing, and Holding in a Closed or Open Position the Sashes of Sliding Windows.
Year: 1887

page_text: Date of Application, 27th Jan., 1887
Complete Specification Left, 19th Oct., 1837-Accepted, 29th Nov., 1887
A Method of Raising, Lowering, Balancing, and Holding in a
Closed or Open Position the Sashes of Sliding Windows.
I THOMAS BAKER BROWN Joiner and wood Turner of 8 Sydney Terrace and
25 High Street Taunton in the County of Somerset do hereby declare the nature of
this invention to be as follows:-
Consisting of two small metal cases fixed in the centre of Sash frame one on each
side with 4 pinion wheels the two larger ones projecting for the purpose of working
in racks fastened to the sides of sashes the two smaller ones working in each other
move the two larger ones in opposite directions so that as the bottom sash is raised
the top one is lowered and also as the top one is raised the bottom one is lowered thus
acting upon the two sashes simultaneously, each sash being of nearly. equal weight
they are also balanced. As both sashes are opened at the same time I have inade
provision for an open space at top whilst the botton Sash is still practically closed.
this is accomplished by means of a piece of wood fastened to bottoin of sash frame.
The method of holding sashes either in a closed or open position is by thumb screw
or similar fastening threaded through metal case the end coming in contact with
suitable Indents in pinion wheel.
Dated this 25th day of January 1887
THOMAS BAKER BROWN.

page_text: COMPLETE SPECIFICATION (AMENDED).
A Method of Raising, Lowering, Balancing, and Holding in a
Closed or Open Position the Sashes of Sliding Windows.
I THOMAS BAKER BROWN Joiner and Wood Turner of 8 Sydney Terrace North
Town and 25 High Street Taunton in the County of Somerset 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 :-
I will describe my invention by referring to the accompanying drawings by which
it will be seen that I employ mechanism consisting of two small metal cases A
(represented on an enlarged scale by Figs. 3, 4 and 5) fixed in the centre of Sash Frame
one on each side A (see Figs. 1 & 2) with 4 four Pinion Wheels E, F, G, H, (Figs. 3 & 5)
mounted on spindles the two pinion wheels E & G projecting as shown in Figs. 3 and 4
for the purpose of and working in racks fastened to the sides of Sashes A (see Fig. 6)
the two small pinion wheels F, H (Figs. 3 & 5) working in each other move the
two larger ones E & G in opposite directions; so that as the bottom Sash is raised
the top one is automatically lowered and also as the bottom sash is lowered the top
one is automatically raised thus acting upon the two sashes simultaneously. Eneh
The Sashes being nearly of equal weight they are also balance each other. As both
Sashes are opened at the same time I have made a provision for an open space at
top while the bottom Sash is still practically closed; this is accomplished by means
of a piece fastened to bottom of Sash Frame in front of the sash as shewn in
Fig. 1 where the bottom rail of sash is here shown by dotted lines, the Sashes being
closed. The open space at top-D In Fig. 2 the Sashes are a little open bringing
the bottom rail C of bottom sash into view CFig. 2 and allowing an open space 1)
at the top but still excluding all draught at bottom J. Fig. 4 shows the parting bead
by dotted lines. The means of which I employ for holding the Sashes either in a
closed or open position is by a Thumb Screw B or similar fastening threaded through
metal case B (see Figs. 12 and 5) the end of the screw coming in contact with suitable
indents in the Pinion wheel I Fig. 3&5 G.
Although I have supplied the accompanying drawings are to scale 1 do not confine
myself to any given particular sizes of the parts as it may be necessary to increase
or decrease the sizes for other Sashes. Also that Nor do I do not confine myself
either to just the one the particular position of Pinion Wheels shewn on the drawings
as in some cases it may be deemed advisable to fix the Rack in the middle of Sash
Stiles instead of at the outer edge A as shewn in Fig. 6. This may be easily effected
by simply shifting the position of the Pinion Wheels E & G on their spindles to
corresponding thereto Figo with the racks.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed 1 declare that what I
claim is―
1st. That the 2 Metal Cases and 4 Pinion Wheels-fixed on revolving spindles and
working in-Racks is here-applied for the first time to Sliding Windows.

page_text: position by means of Thumb Serew or similar fastening threaded through metal ease
the end of same coming in contact with suitable indents in Pinion Wheels.
The improved method of raising, lowering and balancing the sashes of sliding
windows hereinbefore described and illustrated by the accompanying drawings, that is
to say, the employment at each side of the window of two racks fixed respectively to the
top and bottom sashes and gearing with pinion wheels which by other pinion wheels are
geared together so that when one sash is raised the other sash will by the racks and
pinion wheels be caused to move down, either with or without the means for holding the
sashes in either a closed or open position, substantially as hereinbefore set forth.
Dated this 18th day of October 1887.
THOMAS BAKER BROWN.

page_text: Date of Application, 27th Jan., 1887.
Complete Left, 19th Oct., 1887
Complete Accepted, 29th Nov., 1887
A Method of Raising, Lowering, Balancing, and Holding in a
Closed or Open Position the Sashes of Sliding Windows.
I THOMAS BAKER BROWN Joiner and wood Turner of 8 Sydney Terrace and
25 High Street Taunton in the County of Somerset do hereby declare the nature of
this invention to be as follows:-
Consisting of two small metal cases fixed in the centre of Sash frame one on each
side with 4 pinion wheels the two larger ones projecting for the purpose of working
in racks fastened to the sides of sashes the two smaller ones working in each other
move the two larger ones in opposite directions so that as the bottom sash is raised
the top one is lowered and also as the top one is raised the bottom one is lowered thus
acting upon the two sashes simultaneously, each sash being of nearly equal weight
they are also balanced. As both sashes are opened at the same time I have made
provision for an open space at top whilst the bottom Sash is still practically closed
this is accomplished by means of a piece of wood fastened to bottoin of sash frame.
The method of holding sashes either in a closed or open position is by thumb screw
or similar fastening threaded through metal case the end coming in contact with
suitable Indents in pinion wheel.
Dated this 25th day of January 1887.

page_text: A Method of Raising, Lowering, Balancing, and
Holding 111 a
Closed or Open Position the Sashes of Sliding Windows.
I THOMAS BAKER BROWN Joiner and Wood Turner of 8 Sydney Terrace North
Town and 25 High Street Taunton in the County of Somerset 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 :-
Consisting of two small metal cases fixed in the centre of Sash Frame one on each
side A Fig. 1 & 2 with 4 Pinion Wheels E F G H Fig. 3 & 5 the two pinion
wheels E&G projecting as shown in Fig. 4 for the purpose of working in racks
fastened to the sides of Sashes A Fig. 6 the two small pinion wheels F H Fig. 3 & 5
working in each other move the two larger ones E & G in opposite directions so that
as the bottom Sash is raised the top one is lowered and also as the bottom sash is
lowered the top one is raised thus acting upon the two sashes simultaneously. Each
Sash being nearly of equal weight they are also balanced as both Sashes are opened
at the same time I have made a provision for an open space at top while the bottom
Sash is still practically closed.
This is accomplished by means of a piece fastened to bottom of Sash Frame C
Fig. 1 the bottom rail of sash is here shown by dotted line the Sashes being closed.
The open space at top D Fig. 2 the Sashes are a little open bringing the bottom rail
of sash into view C Fig. 2 still excluding all draught at bottom J Fig. 4 shows the
parting bead. The means of holding Sashes either in a closed or open position is by
Thumb Screw or similar fastening threaded through metal case B3 Fig. 5 the end
coming in contact with suitable indents in Pinion wheel I Fig. 3 & 5.
Although I have supplied drawings to scale 1. do not confine myself to any given
size as it may be necessary to increase or decrease the sizes for other Sashes. Also
that 1 do not confine myself either to just the one position of Pinion Wheels as in
some cases it may be deemed advisable to fix the Rack in the middle of Sash Stiles
instead of at the outer edge A Fig. 6. This may be easily affected by simply shifting
the position of Pinion Wheels E & G on spindle corresponding thereto Fig. 5.
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―
1st. That the 2 Metal Cases and 4 Pinion Wheels fixed on revolving spindles and
working in Racks is here applied for the first time to Sliding Windows.
2ndly. The method of fastening or holding Sashes either in a closed or open
position by means of Thumb Screw or similar fastening threaded through metal case
the end of same coming in contact with suitable indents in Pinion Wheels.
1011
inton 1887