Improvements in Making and Fixing Window Sashes and Frames.
Year: 1889

page_text: Date of Application, 23rd Aug., 1889
omplete Specification Left, 10th May, 1890-Accepted, 12th July, 1890
PROVISIONAL SPECIFICATION.
--
Improvements in Making and Fixing Window Sashes and Frames.
I, ARTHUR DILLON TRENGOVE of 25 Noble Street Rishton in the County of
Lancashire, Joiner, do hereby declare the nature of this invention to be as follows:-
The object of my invention is to avoid the boxes and fittings necessary to the use of
sash weights, and to provide in lieu thereof, fittings which are more convenient, safe
and practicable. On the sash frame and between the parting beads or slips usually
affixed at the side of the window frame is fixed in any convenient manner one or more
small cogged wheels or pinions. On the outside edges of the top and bottom sash
respectively is fixed a toothed rack engaging the aforesaid wheel or pinion. Four
lengths of rack work and two cog wheels are preferably used for each window. As
the width of the wheel permits it to engage the two racks affixed to the upper and
lower sash respectively, the upper is drawn down as the lower one is raised.
The wheel may be actuated either by separate mechanism or by the sliding of the
sashes up or down. In my improved system no weights or pulleys are required, and
the fastening of the window may be fixed on the bottom rail if desired. Although
principally intended for window sashes, my invention is adapted for ventilators or
similar purposes.
Dated this 23rd day of August.
For ARTHUR DILLON TRENGOVE,
Lulman & Co.,
A12
COMPLETE SPECIFICATION.
Improvements in Making and Fixing Window Sashes and Frames.
I, ARTHUR DILLON TRENGOVE of 25 Noble Street Rishton near Blackburn in the
County of Lancashire Joiner, 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 :-
The object of my invention is to avoid the boxes and fittings necessary to the use of
sash-weights and to provide in lieu thereof fittings which are more convenient, safe,
and practicable. On the sash frames, and between the parting beads, or slips, usually
affixed at the side of the window frame, is fixed in any convenient manner one or more
small cogged wheels or pinions. On the outside edge of the sashes, top and bottom
respectively, is fixed a toothed rack engaging the aforesaid wheel or pinion. Four
lengths of rackwork and two cog-wheels are preferably used for each window, the
width of the wheel engaging the two racks affixed to the upper and lower sash
respectively. By its action the upper one is drawn down as the lower one is
raised. The wheel may be actuated either by separate mechanism or by the sliding
of the sashes up or down. In my improved system no weights or pulleys are required
and the fastening of the window may be fixed on the bottom rail if desired. Although
principally intended for window sashes my invention is adapted to ventilators or
similar purposes.
In order that my invention may be better understood I append drawings in
which fig. 1 is a front view of the window sash and frame as fitted. Fig. 2 is a section
of the frame showing the ordinary sash and meeting rails. Fig. 3 is section of frame
showing the cog-wheel and rack adjustment fixed upon the sash showing them closed:
and fig. 4 shows the same frame and their rack adjustment partially open. Fig. 5 is
an enlarged view of the cog-wheel and racks upon the sashes as fixed; and fig. 6
shows the method of fixing the sashes and the racks with the cog-wheel working
Price fd l

page_text: between. A and B, are the upper and lower sashes respectively. C is the
cog-wheel and D D the racks. Similar letters in all the figures refer to similar
parts.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, 1 declare that what 1
claim is :-
1. The method of controlling and operating window-sashes by means of cog-
wheels, or pinions and racks, as described and illustrated substantially, and as set
forth.
LULMAN & Co.,
Agents for Applicant.