IMPROVEMENTS IN APPARATUS FOR CLOSING, FASTENING, AND ADJUSTING MOVEABLE VENTILATÓR, WINDOW, AND OTHER FRAMES A communication to him by Ar
Year: 1882

page_text: LETTERS PATENT to Edmund Edwards, of the firm of Edwards and Co:-,
Patent Agents and Engineers, of 40, Southampton Buildings, Chancery Lane,
in the County of Middlesex for an Invention of IMPROVEMENTS IN APPARATUS
FOR CLOSING, FASTENING, AND ADJUSTING MOVEABLE VENTILATÓR, WINDOW,
AND OTHER FRAMES A communication to him from abroad by Arsène
Descaves and Dieudonné Halut, both of Paris, in the Republic of France
"
PROVISIONAL SPECIFICATION left by the said Edmund Edwards at the
Office of the Commissioners of Patents on the 19th September 1882.
EDMUND EDWARDS, of the firm of Edwards and Co:, Patent Agents and
Engineers, of 40, Southampton Buildings, Chancery Lane, in the County of
Middlesex, "IMPROVEMENTS IN APPARATUS FOR CLOSING, FASTENING, AND
ADJUSTING MOVEABLE VENTILATOR, WINDOW, AND OTHER FRAMES [A communi-
cation to him from abroad by Arsène Descaves and Dieudonné Halut, both of Paris;
in the Republic of France]
"
This invention is applicable to the purpose of closing, fastening, and adjusting,
all kinds of moveable frames for windows, doors, or shutters, of ventilators in
houses, public. buildings, schools, the cells in prisons, waiting rooms at railway
stations, bath rooms, or other places....
The apparatus may be arranged in any convenient position, in connection with
such moveable frames of metal, or wood and metal, or other material. It consists
of a drum or cylinder having helical teeth round its circumference and revolving
in bearings in a small rectangular metal box, one of its axes being continued in
the required direction outside the box to any desired distance. This drum is
made to revolve by an endless screw turning in bearings at right angles to it and
having its front axis brought through a moveable shield which covers the front of
the box and has a sunk centre in which a cross handle upon the axis turns, so as
not to project inconveniently. The upper or outer end of the prolonged axis first
Price fd 1

page_text: described carries two small spheres preferably of metal fitting into a short hollow
cylinder inside the ends of which are fitted at right angles to each other two small
semi-circular bars the ends of which are pivotted to the sides of the cylinder, the
tars themselves being of such section as to fit into a corresponding groove formed
completely round the diameter of each sphere. The upper end of the prolonged
axis is arranged so as to fit into and drive the lower part of the groove in the
lower sphere, whilst a similar connection between the upper part of the groove in
the upper sphere is connected to and actuates the moveable frame of the ventilator
or other appliance which is to be closed or regulated, and a perfect universal or
flexible joint is thus formed.
By the use of this invention the chains and cords with their pullies, gear, and
other cumbrous accessories as ordinarily used which are always difficult to regulate
are avoided, whilst the apparatus is cheap, simple, not likely to get out of order,
and very easily and quickly fixed; and whether opened or closed the ventilators
or frames remain steady in their position and unaffected by strong currents
of air.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed,
by the said Edmund Edwards in the Great Seal Patent Office on the 19th
March 1883.
EDMUND EDWARDS, of the firm of Edwards and Co, Patent Agents and
Engineers, of 40, Southampton Building, Chancery Lane, in the County of
Middlesex "IMPROVEMENTS IN APPARATUS FOR CLOSING, FASTENING, AND
ADJUSTING MOVEABLE VENTILATOR, WINDOW, AND OTHER. FRAMESA communi-
cation to me from abroad by Arsène Descaves and Dieudonné Halut, both of
Paris in the Republic of France
2
This invention is applicable to the purpose of closing, fastening, and adjusting
all kinds of moveable frames for windows, doors, or shutters, of ventilators in
houses, public buildings, schools, the cells in prisons, waiting rooms at railway
stations, bath rooms, or other places.
The apparatus may be arranged in any position, in connection with such
moveable frames of metal, or wood and metal, or other material. It consists of a
drum or cylinder having helical teeth round its circumference and revolving in
bearings in a small rectangular metal box, one of its axes being continued in the
required direction outside the box to any desired distance. This drum is made
to revolve by an endless screw turning in bearings at right angles to it and having
its front axis brought through a moveable shield which covers the front of the box
and has a sunk centre in which a cross handle upon the axis turns, so as not to
project inconveniently. The upper or outer end of the prolonged axis first
described carries two small spheres preferably of metal fitting into a short hollow
cylinder inside the ends of which are fitted at right angles to each other two
small semicircular bars the ends of which are pivotted to the sides of the cylinder,
the bars themselves being of such section as to fit into a corresponding groove
formed completely round the diameter of each sphere. The upper end of the
prolonged axis is arranged so as to fit into and drive the lower part of the groove
in the lower sphere, whilst a similar connection between the upper part of the
groove in the upper sphere is connected to and actuates the moveable frame of the
ventilator or other appliance which is to be closed or regulated, and a perfect
universal or flexible joint is thus formed.
In the accompanying drawing which is in illustration of the invention, figures 1,
2, 3, 4, 5, and 6, shew detailed views of the different parts of the mechanism
described, figure 7 is a front view of the box containing it, and figures, 8 and 9
are a transverse section and front view respectively of a ventilator fitted with the
invention. a is the drum or cylinder having helical teeth or grooves round it, and
carried by the spindle & which revolves in bearings in the box c. It is driven by.
the endless screw b, as already described. i is the front shield to the box c, and
h is a cross handle by which the screw b is turned. e are the metal grooved
spheres and f the short cylinder having the semicircular bars g, g, arranged inside
it as described. In figures 8 and 9 d is a prolongation of the cylinder spindle,
actuating the ventilator which is to be opened or closed.
By the use of this invention, the chains and cords with their pullies, gear, and
other cumbrous accessories as ordinarily used which are always difficult to regulate
are avoided, whilst the apparatus is cheap, simple, not likely to get out of order, and
very easily and quickly fixed; and whether opened or closed the ventilators or frames
remain steady in their position and unaffected by strong currents of air. The
apparatus is out of sight, with the exception of the handle h, which being sunk in
a recess affords no facilities for suicide where the invention is used in prison cells.

page_text: The cost of the apparatus is always the same for any ventilator, the frame of
which will vary with the position and conditions under which it is used.
Having now described the invention and the manner in which it is to be
perforined, I claim:-The combination of the cylinder a having helical teeth, the
endless screw b driving it, the box c, recessed shield i and crosshandle h, grooved
spheres e, coupling cylinder f, and semicircular bars g, all arranged and operating
substantially as and for the purpose described and shewn.
In witness whereof, I the said Edmund Edwards have hereunto set my
hand and seal this 19th day of March in the year of our Lord 1883.