improvements in Openers for Fanlights and other Windows.
Year: 1896

page_text: Date of Application, 29th July, 1896
Complete Specification Left, 29th Apr., 1897-Accepted, 3rd July, 1897.
improvements in Openers for Fanlights and other Windows..
WILLIAM MAW TROUSDALE Kingslyn Harrogate in the County of York Practical
Engineer. I do hereby declare the nature of this invention to be as follows:-
My improvements consist of a bracket being fixed on the window-frame having a
pivotted arm working in a joint on it. This arm is arranged with a curved arm-piece
having cogs. The frame is arranged with a fixed arm a little distance from the pivot
of the arm, on which a worm-wheel is arranged to work directly in the cogs of the
curved arm-piece. At the extremity of the rod on which the worm-wheel is fixed
mitre-wheels are arranged to work on a bracket which is fixed at any required
distance on the frame of the window &c. A socket is formed having a tapered square
in the boss of the mitre-wheel working parallel with the floor line.
A detachable or fixed handle is arranged having the shank tapered to fit the boss of
the mitre-wheel to operate. the rod carrying the worm-wheel. Brackets may be
arranged in which the rod turns in for staying purposes. There is fixed on the sash
of the window a bracket arranged with a pivotted grooved pulley and strap. The
pivotted arm fixed on the frame of the window is made to work directly against the
face of the grooved pulley and is encircled by the pivotted strap. When the handle
fixed on the bracket is turned the worm-wheel fixed on the rod will cause the curved
arm-piece arranged with cogs to traverse in the worm-wheel causing the arm on
which it is fixed to swivel and press against the pivotted strap and simultaneously
open the window. The reverse action being applied to the handle will cause the
pivotted arm to swivel pressing against the face of the pulley and simultaneously
close the window.
A number of windows may be opened simultaneously. A pivotted rod is arranged
in brackets fixed on the frame-work parallel with the hinges of the windows.
Opposite each window a arm-piece is fixed on the rod and is connected to a bracket
fixed on the sash of the windows by pivotted links.
There is fixed on the rod a arm-piece having two grooved pulleys arranged at its
extremity. The pivotted arm as above described and arranged is made to work
between the pulleys thus when the handle is turned the rod will simultaneously move
and all the windows will open. When a cord arrangement is required the pivotted
arm arranged in the bracket as above described having the curved arm-piece arranged
with cogs is placed in such a position on the frame as to allow the spindle of the
worm-wheel to work parallel with the floor-line. There is fixed on the extremity of
the spindle a grooved pulley having teeth or such simple device on the face for
gripping purposes. There is placed in the grooved pulley an endless cord and when
pressure is applied to it the worm-wheel will turn and cause the curved arm-piece
arranged with cogs to traverse in it and actuate the pivotted arm on which it is fixed
thus the window is opened or closed as above arranged and described. In case of
large windows brackets may be fixed on the frame-work having a pivotted rod
arranged parallel with the window having arm-pieces fixed in such positions as to
allow them to press against the sash of the window when the pivotted arm arranged

page_text: as above described coming in contact with the arm-piece fixed on the rod causing it
to swivel and the arm-pieces fixed on it will press against the sash and equally com-
press it in the window frame. In many instances the pivot working on a frame
carrying the window may be arranged with a curved arm-piece having cogs and
working directly in the worm-wheel arranged with spindle and pulley fixed in a frame
on the frame-work. When the pulley is turned the curved arm-piece with cogs will
traverse in the worm-wheel and simultaneously open or close the window being
arranged with endless cord on handle as above described.
Dated thi. 29th dor of Jul' 1906
COMPLETE SPECIFICATION.
Improvements in Openers for Fanlights and other Windows.
I, WILLIAM MAW TROUSDALE of Kingslyn Harrogate in the County of York 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 improvements consist of a bracket being fixed on the window-frame having a
pivoted arm or toggle lever working on it. The pivot is arranged with a curved arm-
piece having cogs on the extremity or it is practically a segment-arm. The frame is
arranged with a fixed arm a little distance below the arm of the pivot on which a
worm-wheel is made to revolve being fixed at the extremity of a vertical rod.
the other extremity of the rod on which the worm-wheel is fixed mitre wheels are
arranged to work on a bracket or wheel box which may be fixed at any required
distance on the window-frame, &c.
A socket is formed having a tapered square in the spindle of the mitre-wheel working
vertically with the floor line. A detachable or fixed handle is arranged having
the shank tapered to fit the spindle of the mitre-wheels which operate the vertical rod
carrying the worn-wheel. Brackets may be arranged in which the vertical rod
revolves for staying purposes. There is fixed on the sash of the window a bracket
arranged with a pivoted grooved. pulley and strap or the bracket may be attached to
the extremity of a toggle-lever by means of a pin. The pivoted arm fixed on the
frame of the window is made to work directly against the face of the grooved-pulley
and it is encircled by a pivoted strap. When the handle fixed on the bracket or mitre-
wheel box is turned the worm-wheel fixed on the rod will traverse in the curved arm-
piece or segment-arm causing the pivot carrying the toggle-lever to swivel and
simultaneously open the window. The reverse action being applied to the handle
will cause the toggle-lever attached to the bracket on the window to simultaneously
close it. In some instances the vertical ród may be arranged with teeth to work
vertically in a bracket and engageing directly in the teeth of the segment-arm. The
other extremity of the rod is screwed and arranged to work directly in the boss of the
mitre-wheel which is screwed for it to traverse in. When the handle of the mitre-
wheel box is turned the vertical rod will be lifted and the segment-arm arranged on
the pivot will cause the toggle-lever to swivel and simultaneously open the window.
The reverse action being applied the window will be closed. When the sash of a
window is of such a magnitude that one toggle-lever will not cause it to be tightly
pressed against the window frame a rod sufficiently long may be used which forms
the pivot on which the segment-arm and toggle-levers are fixed. The rod forming
the pivot is arranged with a second toggle-lever on it and a bracket is screwed to the
window frame for it to revolve in.
In some instances when the Fanlight is pivoted the toggle-lever may not be used
but the segment-arm may be arranged to work directly from the pivot of the window
and is operated by the worm-wheel as above described and set forth.

page_text: A number of windows may be opened simultaneously. A pivoted rod is arranged to
work on brackets fixed on the frame work of the hinged windows being fixed parallel
with the floor line. Opposite the sash of each window an arm-piece with a link or
toggle-lever is fixed and is connected to a bracket on the sash. There is fixed on the
rod an arm-piece which is engaged to a connecting rod and the other end engageing
an arm-piece which is fixed on the pivot carrying the segment-arm being arranged
to work directly in the worm-wheel on a bracket and is connected to the mitre-wheel
box by a vertical rod being operated as above described.
When the windows are vertically arranged an arm-piece is fixed to each parallel
rod and is connected by means of connecting rods.
When a cord arrangement is used the pivoted arm-piece or toggle-lever arranged
on the bracket having the segment-arm fixed on a spindle and engaging directly
with the worm-wheel arranged on the bracket. There is fixed at the extremity of the
spindle a grooved pulley having teeth on such simple device for gripping purposes.
There is arranged in the grooved pulley an endless cord and when pressure is applied
to it the worm-wheel will traverse in the segment-arm and actuate the toggle-lever
which is fixed on the pivot causeing it to swivel and simultaneously open the window.
The reverse action being applied the window is closed.
The following is a description of the Fanlight Openers reference being made to the
accompanying drawings.
Fig. 1 is a side view of the Fanlight Opener from the inside of the apartment
showing the window closed. A the bracket. B the toggle-lever. C the pivot. D the
seginent-arm. E the worm-wheel. F the vertical-rod. G the mitre-wheels. H the
wheel-box. I the handle. J the bracket on the window sash.
Fig. 2 is an elevation of the Opener from the inside of the apartment showing the
window closed arranged with two toggle-levers. A the bracket. B the toggle-lever.
B1 the second toggle-lever. C1 the parallel rod. D the segment-arm. E the worm-
wheel. F the vertical rod. H the nitre-wheel box. I the handle. J the bracket
on the sash. J 1 the parallel bracket on the sash. K the parallel rod bracket.
Fig. 3 is a side view showing the Openers arranged with toggle-levers from the
inside of the apartment when the windows are arranged vertically. A A1 and A2 brackets.
B2 B3 B4 toggle-levers. C2 C3 C4 paralell rods. D Segment-arm. E Worm-wheel.
F Vertical rod. H Mitre-wheel box. I Handle. J2 J3 J4 Brackets on the window
sashes. M arm-pieces for connecting parallel rods. N connecting rods.
Fig. 4 is an elevation showing the Openers arranged vertically from the inside of the
apartment A A 1 and A2 Brackets. B2 B3 and B 4 toggle-levers. C2 C3 C4 Parallel
rods. D segment arm. E worm-wheel. F vertical rod. H mitre-wheel box. I the
handle. J2 J3 J4 Bracket on the window sashes. M arm-pieces for connecting
parallel rods. N connecting rods.
Fig. 5 is a side view of the Opener arranged for pivoted windows when toggle-
levers are not used showing the window closed from the inside of the apartment.
A the bracket. D the segment-arm. E the worm-wheel. F the vertical rod. H the
mitre-wheel box. I the handle.
Fig. 6 is an elevation of Fig. 5. A the' bracket. D the segment-arm. E the
worm-wheel. F the vertical rod. H the mitre-wheel box. I the handle.
Fig. 7 is a side view showing the Opener from inside the compartment arranged
with endless cord for operating it. A the bracket. B the toggle-lever. C the pivot.
D the segment-arm. E the worm-wheel. O the spindle carrying worm-wheel.
L the grooved pulley.
Fig. 8 is an elevation of Fig. 7. A the bracket. B the toggle-lever. C the pivot.
D the segment-arm. E the worm-wheel. O the spindle carrying worm-wheel.
L the grooved pulley.
Fig. 9 is a side view of the Opener arranged to
simultaneously. A the bracket. B the toggle-levers.
arm. E the worm-wheel. F the vertical rod. H
handle. J the bracket on the sash of the window.
parallel rod. M the arm-pieces. N the connecting rod.
open a number of windows
C the pivot. D the segment-
the mitre-wheel box. I the
P the bracket for carrying the

page_text: Fig. 10 is an elevation of Fig. 9. A the bracket. B the toggle-levers. C the
pivot. D the segment-arm. E the worm-wheel. F the vertical rod. H the mitre-
wheel box. I the handle. J the brackets fixed on the sashes of the windows.
arm-pieces. N the connecting rod.
M the
Having now partically 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 :-
Firstly the combination of toggle-levers B engaging with brackets J and J 1 being
pivoted and arranged with segment-arm D working on pivot C or parallel rod C1 and
arranged with worm-wheel E working on bracket A being connected with mitre-
wheel box H which is arranged with mitre-wheels G, by the vertical rod F and is
operated by the handle I substantially as shown and described with reference to
Figs. 1 and 2 of the drawings annexed.
Secondly the combination of toggle-levers B2 B3 and B 4 being pivoted on the
brackets A A 1 and A 2 and working on the parallel rods C2 C3 C4 which are arranged
with arm-pieces M being connected with rods N and arranged with segment-arm. D
and worm-wheel E working on bracket A and engageing with mitre-wheel box H by
the vertical rod F and being operated by the handle I substantially as shown and
described with reference to Figs. 3 and 4 of the drawings annexed.
Thirdly the combination of worm-wheel E working on bracket A and engageing
with segment-arm D and being connected with mitre-wheel box H with the vertical
rod F and being operated by the handle I substantially as shown and described with
reference to Figs. 5 and 6 of the drawings annexed.
Fourthly the combination of toggle-lever B working on pivot C arranged with
segment-arm D and engageing with worn-wheel E working on the spindle O fitted
with grooved pulley I arranged on the bracket A and operated by the endless cord.
substantially as shown-and described with reference to Figs. 7 and 8 of the drawings
annexed.
Fifthly the combination of toggle-lever B attached to brackets J and being fixed
on the parallel rod C 1 and arranged on brackets P and engageing with pivot C by means
of arm-pieces. M and connecting rods N the pivot C working on the brackets A being
arranged with segment-arm D and worm-wheel E and is connected to the mitre-wheel
box H by means of the vertical rod F and is operated by the handle I substantially as
shown and described with reference to Figs. 9 and 10 of the drawings annexed.
Sixthly in combination of toggle-levers fixed on a pivot or parallel rod working on
a bracket and arranged with segment-arın so as to engage directly with the
extremity of the vertical rod which is arranged with teeth and is made to slide on
the bracket the other extremity of the rod is screwed and is made to work through the
mitre-wheel box engageing with the mitre-wheels the boss being arranged to receive
it and is operated by means of the handle as above set forth and described.
Dated this 28th day of April 1897
WILLIAM MAW TROUSDALE.