Improvements in the Method of and Apparatus for Regulating Skylights.
Year: 1898

page_text: Date of Application, 27th July, 1898
Complete Specification Left, 27th Apr., 1899-Accepted, 27th May, 1899
PROVISIONAL SPECIFICATION.
Improvements in the Method of and Apparatus for Regulating
Skylights.
We, ROBERT LEGGOTT, of Silens Works, in the City of Bradford, and Messrs.
W. & R. LEGGOTT LIMITED, of the same place, Brass Founders and Finishers, do
hereby declare the nature of this invention to be as follows:-
-
This invention relates to certain improvements in apparatus for the raising and
lowering of skylights, and has for its object the construction and combination of
the apparatus in a manner that, long and heavy skylights may be raised or lowered
with greater ease than is the case when operated by apparatus arranged and com-
bined in the manner as hitherto.
In carrying out the object of this invention, we attach to the skylight frame
two or more brackets, to each of which is pivotted a curved toothed rack, and to
the outer frame of the skylight we secure an equal number of brackets each sup-
porting toothed wheels in gear with the respective curved toothed racks.
The toothed wheels gearing with the respective racks are connected together by
a shaft, and in combination with one of the brackets is a worm and worm wheel,
with which is combined a grooved pulley, around which is an endless cord, on the
operation of which, the wheels gearing with the racks are rotated, and the skylight
raised or lowered as desired without the aid of levers and connecting links now in
common use for the purpose.
1000
JOHN WAUGH,
Agent, Sunbridge Chambers, Bradford,
COMPLETE SPECIFICATION.
Improvements in the Method of and Apparatus for Regulating
Skylights.
We, ROBERT LEGGOTT, of Silens Works, in the City of Bradford, and Messrs.
W. & R. LEGGOTT LIMITED, of the same place, Brass Founders and Finishers, 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 the raising and
lowering of skylights, and has for its object the construction and combination of
the apparatus in a manner that, long and heavy skylights may be raised or lowered

page_text: with greater ease than is the case when operated by apparatus arranged and com-
bined in the manner as hitherto.
In describing this invention in detail, reference is made to the accompanying
sheet of drawings, in which Fig. 1 represents a side elevation of one portion of our
apparatus with the main shaft shown in section, and a portion of the supporting
bracket removed.
Fig. 2 a side elevation of another portion of the apparatus connected to the same
main shaft as hereinafter explained, the supporting bracket being shown in
section, and
Fig. 3 is a face view of the apparatus shown by Figs. 1 and 2 combined together,
but with the main shaft broken, and with a portion of the bracket and grooved
pulley removed to more clearly show the parts behind same.
In carrying out the object of this invention, we attach to each skylight frame
two or more brackets A, to each of which is pivotted at B, a toothed rack C,
preferably curved somewhat as shown, and supported at the back by an anti-
friction pulley P, and to the outer or fixed frame of the skylight, we secure an
equal number of brackets D, each supporting a toothed wheel E, gearing with the
respective toothed rack C.
The toothed wheels E, gearing with the respective racks C, are secured on a
shaft F, journaled in the brackets D, and in combination with one of the wheels E,
and bracket D, is a worm G, gearing into a worm wheel F, attached to the adjoin-
ing wheel E, or if desired, the worm wheel H, may be secured to the shaft F.
With the worm G, is combined a grooved pulley J, around which is placed an
endless cord K, on the operation of which, the worm G, worm wheel H, shaft F,
and wheels E, are rotated, thus by the wheels E, gearing with the respective
racks C, the racks are operated and the skylights attached thereto raised or lowered
as desired, without the aid of levers and connecting links now in common use for
the purpose.
In the drawing, Fig. 3 shows two wheels E, secured on shaft F, but it will be
obvious that the shaft F, may be extended and other wheels E, secured thereon,
geared to racks C, and operated by the endless cord K: through the pulley J,
worm G, and worm wheel H, and thus raise or lower a skylight or skylights having
two or more racks C, attached to the same.
Having now particularly described and ascertained the nature of this invention,
and in what manner the same is to be performed, we declare that what we claim as
our invention is:-
An apparatus for the purpose as hereinbefore set forth in which a grooved
pulley J, worm G, and main shaft F, are combined by intermediary gearing with
two or more racks C, arranged and operated substantially in the manner as shown
and described.