IMPROVEMENTS IN APPARATUS FOR REGULATING FANLIGHTS, VENTILATORS, OR CASEMENTS
Year: 1886

page_text: .
I, WILLIAM LEGGOTT, of 70 Park Road, Bradford, in the County of York,
Brass Founder do hereby declare the nature of this invention for IMPROVEMENTS
IN APPARATUS FOR REGULATING FANLIGHTS, VENTILATORS, OR CASEMENTS to be as
follows:-
This invention relates to certain improvements in apparatus for regulating fan-
lights, ventilators, or casements, and has for its object the arrangement of the
apparatus in such a manner, that I am enabled to dispense with the ordinary hinges
now in common use, and to so open and close the fanlights, ventilators, or casements
that the same are locked or secured in any position to which they are moved within
the range of the apparatus.
I accomplish my object in the following manner. To the fanlights, ventilators or
casements, I attach trunnions or circular projections resting in suitable bearings,
one of which is prepared with a recess in which is mounted a toothed quadrant
gearing with a toothed rack that is secured to an internal worm worked upon an
external worm which when actuated operates the nut and quadrant, thereby causing
the fanlight ventilator or casement to be moved on the trunnions."
Or in lieu of the quadrant, the nut may be connected to the trunnion by short
arms jointed together within the before mentioned recess in such a manner that
when the nut is operated, the fanlight, ventilator or casement is moved on the
trunnions, and by the connection of the screw with the nut the fanlight ventilator
or casement is locked in the position to which they are moved,
JOHN WAUGH,
Agent for the Applicant.

page_text: I, WILLIAM LEGGOTT, of 70 Park Road, Bradford, in the County of York,
Brass Founder, 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:―
This invention relates to certain improvements in apparatus for regulating fan-
lights, ventilators, or casements, and has for, its object, the arrangement of the
apparatus in such a manner, that I dispense with the ordinary hinges now in
common use, and open and close the fanlight, ventilator, or casement in such a
manner, that the same is locked or secured in any position to which it is moved
within the range of the apparatus; and consists in mounting the fanlight, ventilator,
or casement, on trunnions or circular projections, resting in bearings, one of which
is prepared with a recess in which are placed two arms so arranged as to connect
a nut to one of the trunnions, that on operating a cord and pulley, a screw in con-
nection therewith causes the nut to move the fanlight, ventilator, or casement, which
is secured by the improved apparatus in every position and cannot be opened or
closed from the outside.
In the accompanying drawings Fig. 1 represents a front view of my apparatus
in connection with a fanlight, ventilator or casement, a portion of which is shewn,
and Fig. 2 a detail of my apparatus partly in section a portion being cut away as
hereafter described.
The portion of the fanlight, ventilator, or casement is indicated by the letter A,
and mounted on trunnions or circular projections resting in suitable bearings
attached to the fanlight, ventilator, or casement frame A¹. One of tho said
bearings may be of the ordinary construction, but the other bearing or bracket B
is formed with a recess C, one of the side plates of the said recess in Fig. 2 being
partly cut away to shew more clearly the arms in the interior.
The arm D is secured on a square portion of the trunnion F, which is attached
to the fanlight, ventilator or casement by the flange F1, the said arm being con-
nected by the arm or link D', to the internal worm or nut N. Engaging with the
latter, is a screw or outer worm G mounted in bearings in the bracket B, which is
secured to the frame. A¹.
1481
"
J
The screw shaft G³ may be extended to the length required, and secured on the
end thereof is a worm wheel with which engages the worm'.J, to which is attached
the grooved pulley K, both being supported by a stud attached to the bracket B, or
in any other convenient manner. In the groove of the said pulley is placed an
endless cord L, kept in the groove by the guard M, so that when the cord is operated,
the pulley K and worm J rotate, thereby causing the screw or outer worm G to
rotate also, by which the nut or inner worm is moved up or down the said screw
or outer worm G; thus raising or lowering the arm D in accordance with the move-
ment of the nut N and endless cord L; thereby causing the fanlight, ventilator, or
casement to turn on its trunnions, and thus open or close the same as desired, which
is locked or secure in every position by the screw G so that it cannot be opened or
closed except by the operation of the said screw.

page_text: 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 :-
:-
The combination of the screw G with the nut N, and arms D and D¹, for the
operation of fanlights, ventilators, or casements, the whole operating as and con-
structed substantially in the manner shewn and described.
DL: 011 1
3000