IMPROVEMENTS IN DAY-LIGHT REFLECTORS
Year: 1880

page_text: LETTERS PATENT to Paul Emile Chappuis, of 69, Fleet Street, in the City of
London, Manufacturer of Reflectors, for an Invention of "IMPROVEMENTS IN
DAY-LIGHT REFLECTORS."
PROVISIONAL SPECIFICATION left by the said Paul Emile Chappuis at the
Office of the Commissioners of Patents on the 21st January 1880.
PAUL EMILE CHAPPUIS, of 69, Fleet Street, in the City of London, Manufacturer
of Reflectors. "IMPROVEMENTS IN DAY-LIGHT REFLECTORS."
This Invention has for its object improvements in day-light reflectors..
I employ as day-light reflectors polished and variously corrugated surfaces of
metal or glass set in frames, as in the well known Chappuis day-light reflectors;
but in place of as heretofore arranging such reflector frames to turn upon pivots
carried in fixed eyes or bearings, and placed at the lower horizontal edge of the
reflector frame, I employ an outer frame, and to this I hinge the reflector frame or
frames. I usually employ two reflector frames hinged to the sides of the outer
frame; when folded together they meet in the middle of the outer frame. The
outer frame has pivots at its bottom corners, and these are carried in fixed eyes or
bearings; they correspond to the pivots of the day-light reflectors now in use.
The whole apparatus can turn about these horizontal pivots, and so the reflectors
are set to that inclination to the vertical which is found to give the best illumina-
tion where the light is required. But in addition to this power of adjustment,
possessed also by the ordinary day-light reflector, the reflecting frames can be
moved about the hinges by which they are connected with the outer frame. In
this way an adjustment can be made to vary from time to time, as may be required,
the lateral direction in which the light is thrown. In order that this movement of
the reflecting frames about the side hinges may be readily effected I arrange cords
and pulleys by which the reflecting frames may be raised or opened outwards from
the outer frame, and may be secured when open to any desired angle.
I also render day-light reflectors more sightly by forming them with a mirror
surface at the back, and I apply upon this surface a fern like or other decoration.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Paul Emile Chappuis in the Great Seal Patent Office on the 21st July
1880.
PAUL EMILE CHAPPUIS, of 69, Fleet Street, in the City of London, Manufacturer
of Reflectors. IMPROVEMENTS IN DAY-LIGHT REFLECTORS."
"
This Invention has for its object improvements in day-light reflectors.
I employ as day-light reflectors polished and variously corrugated surfaces of
metal or glass set in frames, as in the well known Chappuis day-light reflectors;
but in place of as heretofore arranging such reflector frames merely to turn upon
pivots carried in fixed eyes or bearings, and: placed at the lower horizontal edge of
the reflector frame, I employ an outer frame, and to this I hinge the reflector frame
or frames. I usually employ two reflector frames hinged to the sides of the outer
frame; when folded together they meet in the middle of the outer frame. The
outer frame has pivots at its bottom corners, and these are carried in fixed eyes or.
bearings; they correspond to the pivots of the day-light reflectors now in use.
The whole apparatus can turn about these horizontal pivots, and so the reflectors
are set to that inclination to the vertical which is found to give the best illumina-
tion where the light is required. But in addition to this power of adjustment,
possessed also by the ordinary day-light reflector, the reflecting frames can be
moved about the hinges by which they are connected with the outer frame. In
this way an adjustment can be made to vary from time to time, as may be required,
the lateral direction in which the light is thrown. In order that this movement of
the reflecting frames about the side hinges may be readily effected I arrange cords
and pulleys or other mechanism by which the reflecting frames may be raised or
opened outwards from the outer frame, and may be secured when open to any
desired angle.
The Drawing hereunto annexed shows a day-light reflector constructed as above
described. Figure 1 shows a front view of the reflector, and Figure 2 a back view.
A is an outer frame with pivots B, B, on its lower horizontal edge, by which it can
be supported, and which allow of its being held at any desired inclination by chains
in the usual manner adopted for supporting day-light reflectors; C, C, are two
reflector frames which are hinged to the two sides of the outer frame A, and which
when closed together meet at the middle of the outer frame, as shown at Figure 2.
These reflector frames have set in them polished and variously corrugated surfaces
of metal or glass, such as are ordinarily used as day-light reflectors.. Each of the
reflector frames can, as shown at Figure 2, be raised or opened outwards and set
at any desired angle independently of the other reflector frame. The central bar
of the frame A has secured to it two bars D, D, which incline, outwards from the
back of the frame in the manner shown; capable of sliding along each of these rods
is an eye E jointed to a link G, which is itself jointed to the back of one of the
reflector frames. To the upper part of each link is jointed the upper end of a
rod H, the lower end of this rod passes through an eye, K at the bottom of the
frame A, and has at its end a knob or handle by which it can be moved upwards
or downwards. When the rods are pushed upwards the reflector frames are closed
together, as shown at Figure 2, but when either one or other of the rods is drawn
downwards the reflector frame to which it is connected is raised or opened, as
shown at Figure 1, and it can be locked and held at any desired angle by a binding
screw screwed through the eye K, and caused to bind against and hold, the rod H
and prevent it moving endwise through the eye.
Having thus described the nature of my Invention and the manner of performing
the same, I would have it understood that I claim,―
The construction of day-light reflectors with a reflector frame or frames C binged

page_text: to another frame A so that they can be set at any desired angle to this frame,
whilst the frame A can itself be suspended at any desired angle like an ordinary
day-light reflector.
In witness whereof, I, the said Paul Emile Chappuis, have hereunto set my
hand and seal, this Twenty first day of July, in the year of our Lord One
thousand eight hundred and eighty.
In
QUADDITIS
P. E. CHAPPUIS
(L.S.)

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