IMPROVEMENTS IN THE APPARATUS FOR OPENING AND CLOSING AND SECURING FANLIGHTS CASEMENTS, SASHES AND LANTERN LIGHTS $1
Year: 1882

page_text: LETTERS PATENT to Harry Pearce of No 5 Lidlington Place Harrington
Square London N.W in the County of Middlesex, Metal Worker for an
Invention of "IMPROVEMENTS IN THE APPARATUS FOR OPENING AND CLOSING
AND SECURING FANLIGHTS CASEMENTS, SASHES AND LANTERN LIGHTS
$1
PROVISIONAL SPECIFICATION left by the said Harry Pearce at the Office
of the Commissioners of Patents on the 13th September 1882.
HARRY PEARCE of No 5 Lidlington Place, Harrington Square London N.W in
the County of Middlesex Metal Worker IMPROVEMENTS IN THE APPARATUS FOR
OPENING CLOSING AND SECURING FANLIGHTS CASEMENTS SASHES AND LANTERN
LIGHTS
This invention relates to the method of opening, closing and securing Fan-
lights etc by means of a rod with an Archemedean screw at the one end which can
be made to revolve by means of bevel wheels or any other system so as to turn the
rod and screw round.
I fit a nut upon the Archemedean screw so as to work up or down the screw
when the rod is turned and on the nut I fit a projecting bolt or screw and have a
lever fitted and the one end of the lever fitted with a bracket or arm and attached
to the Fanlight or Sashes to be opened, and when the rod is turned round the nut
is brought from the one end of the Archemedean screw to the other and the lever
being attached to the nut and the Fanlight or sash so forces the Fanlight or sashes
out or in as may be required to open or close them.
For lantern lights or rows of sashes that may require to be opened I propose to
apply a long rod with a number of Archemedean screws and make them revolve the
same way as mentioned before.
The method I employ for securing the Fanlight or sashes is to have a catch fitted
on to the handle that turns the rod round or to have the rod so made as to fit a
collar and pin to fasten and make the rod immovable. The rod and archemedean
screws are fitted to the frame work and fastened with guide eyes as required.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Harry Pearce in the Great Seal Patent Office on the 13th March
1883.
HARRY PEARCE of 5 Lidlington Place, Harrington Square, London N.W. in the
County of Middlesex Metal Worker "IMPROVEMENTS IN THE APPARATUS FOR
OPENING AND CLOSING AND SECURING FAN LIGHTS, CASEMENTS, SASHES AND
LANTERN LIGHTS.
This invention relates to the method and means of opening, closing and securing
fan lights and so forth by means of a rod with an archimedean screw at the one end
which can be made to revolve by means of bevil wheels or gears or other system so
as to turn the rod and archimedean screw around.
Upon the archimedean screw is fitted a nut so as to work up or down the screw
when the rod is turned around and on the nut I fit a projecting bolt or screw, and
have a lever arm fitted and the one end of the lever arm is fitted with a joint
attached to the fan light or sash to be opened and when the rod is turned around
the nut is brought or operated from the one end of the archimedean screw towards
the other and the lever arm being attached to the nut at one end and to the
fan light or sash as the case may be at the other so forces the fan light sash or
part to be operated out or in upon their hinges as may be required to open or
close them.
For lantern lights or rows of sashes that may require to be opened I apply a
long rod provided with a number of successive archimedean screws and effect the
turning of the rod in the same way as before mentioned or conveniently The
method I employ for securing the fan light or sashes is to have a catch fitted on to
the handle that turns the rod around or to have the rod so made as to fit a collar
and pin to fasten and make the rod fast.
The rod and archimedean screw are fitted in bearings or guides on the frame-work
of the windows or the like and secured with guide eyes as required.
In the drawings hereunto annexed Fig. 1 represents a front view of a sash or
casement fitted with my invention; Fig. 2 is a side view and Fig. 3 is a top or
plan view of the gears, supporting bracket and stop device at line a, b of Fig. 1.
A. is the archimedean screw upon rod A', carried in a footstep a, of the bracket B;
C is female screw-nut jointed at d, to the arm D, at one end and at the other
end e, to the bracket E on the sash or part F to be operated; G represents the
hinge or joint of the part F; H represent the bevil wheels shown here for purpose of
providing means for turning around the rod A' and the bracket B is swelled out in
the fore-part B' and pierced for receiving the operating parts as shown at foot of
rod A' A2 are guides in which the rod A' works.
Upon the foot of rod A¹ is a disc, here shown as the back of the bevil wheel H,
and provided with stops dwells or holes I.
Upon bracket B, is an ear B' through which is a hole which will receive the stop
pin K which will also project into one or other of the stop holes I for holding or
stopping the rod A¹ from turning and the sash or other part F, that has been
adjusted by the archimedean screw A, nut C and arm D will be held to the position
in which it has been adjusted or has to be retained
Having now described the nature of the said invention and the manner in which
the same operates I claim :-
Firstly. For opening, closing and retaining in position, fan lights casements,
sashes, lantern lights and other objects that are hinged or hung on centres, the
archimedean screw A, connected with a rod A', revolving in centres, and the nut C
upon said archimedean screw connected by arm D to the part to be operated or to

page_text: be held in position upon its hinges or centres as and for the purpose herein set
forth.
Secondly. In combination with the archimedean screw device as herein set forth
and the pierced wheel or disc H, I, of rod A', the footstep bracket B with pierced
ear B¹ for receiving the stop-pin K, as and for the purpose herein set forth and
shown by the drawings.
In witness whereof I the said Harry Pearce bave hereunto set my hand and
seal this ninth day of March in the year of our Lord one thousand eight
hundred and eighty three.
In presence of
WALTER A. BARLOW
Patent Agent & Engineer
6 St. Pauls Chyd
London EC.
HARRY PEARCE (LS.)