IMPROVEMENTS IN REFLECTORS, DIFFUSORS, AND CONCENTRATORS OF DAYLIGHT, AND MOTIONS OR ACTIONS FOR MOVING OR REGULATING THE WHOLE OR PART OF. THE SAME
Year: 1877

page_text: LETTERS PATENT to Frederick Alma Hamilton, of 19, Gladstone Street, in the
Parish of St. George, Southwark, in the County of Surrey, and Frederick
Hamilton, of 25, Poole Road, in the Parish of St. John, Hackney, in the
County of Middlesex, Engineer, for the Invention of " IMPROVEMENTS IN
REFLECTORS, DIFFUSORS, AND CONCENTRATORS OF DAYLIGHT, AND MOTIONS
OR ACTIONS FOR MOVING OR REGULATING THE WHOLE OR PART OF. THE
SAME."
**
PROVISIONAL SPECIFICATION left by the said Frederick Alma Hamilton
and Frederick Hamilton at the Office of the Commissioners of Patents on
tlie 13th June 1877.
FREDERICK ALMA HAMILTON, of 19, Glastone Street, in the Parish of St. George,
Southwark, in the County of Surrey, Engineer, and FREDERICK HAMILTON, of
25, Poole Road, in the Parish of St. John, Hackney, in the County of Middlesex;
Engineer. "IMPROVEMENTS IN REFLECTORS, DIFFUSORS, AND CONCENTRATORS OF
DAYLIGHT, AND MOTIONS OR ACTIONS FOR MOVING OR REGULATING THE WHOLE-
OR PART OF THE SAME."
The object of our Invention is to provide a better means for transmitting light
through floors, ceilings, roofs, walls, or any other places as occasion may require.
According to our Invention the improvements consist. in the use of glass vessels
of various forms with part or the whole plain, or silvered or coated with hinterial
having reflecting surfaces, as formed adaptable to the various positions, they are to
be placed in. These said glass vessels to be partly filled with water, spirit, or other
liquid, and hermetically sealed; we prefer spirit to avoid breakage of the said glass
vessels by expansion that may be caused in freezing. The said glass vessels may
be fixed or moveable in metal, wood, stone, or other suitable materials in cases or
frames, which cases or flames may be regulated or set to such angle or angles as
required to reflect, concentrate, or diffuse the light.
For moving the said reflectors, diffusors, and concentrators, or any part or parts
of the same to different positions, or to the requisite angles, we purpose to fix to
the said cases or frames, quadrants, or parts of circles of metal "or wood forined

page_text: with holes or pins in the rims, the said quadrants or parts of circles running on
flat or curveds plates or bearers with corresponding pegs or holes to match, thereby
keeping the said quadrants or parts of circles in the required positions on the said
plates or bearers, or by quadrants or parts of circles running on plates or bearers
with check chains and set or regulating screws.
For reflecting light we purpose to place separately or in combinations with the
aforesaid part of our Invention a number of metal plates polished or plated, or
glass, plates plain colored, or silvered, flat, or curved or indented in metal or
wood frames in or on metal or wood carriages, which may be fixed or moveable to
the requisite angle or angles for reflecting light. The said reflectors may be placed
in or on metal or wood frames; and for moving the said reflectors, diffusors, or
concentrators, and the said cases or frames, or the whole or any part thereof, to.
different positions, angle or angles, we purpose to use screws attached to universal
joints on sheaves rotating on pivots.
SPECIFICATION in pursuance _ of the conditions of the Letters Patent filed
by the said Frederick Alma Hamilton and Frederick Hamilton in the Great
Seal Patent Office on the 12th December 1877.
FREDERICK ALMA HAMILTON, of 19, Gladstone Street, in Parish of Saint George,
Southwark, in the County of Surrey, Engineer, and FREDERICK HAMILTON, of 25;.
Poole Road, in the Parish of Saint John, Hackney, in the County of Middlesex,
Engineer. "IMPROVEMENTS IN REFLECTORS, DIFFUSORS, AND CONCENTRATORS OF
DAYLIGHT, AND MOTIONS OR ACTIONS FOR MOVING OR REgulating the WHOLE OR
PART OF THE SAME."
The object of our Invention is to provide a better means of transmitting day-
light through openings in floors, ceilings, roofs, and walls, or any places as occasion
may require.
Having given the nature of our Invention, we will now describe the method of
giving the same effect. We purpose using. glass vessels cast, moulded, or blown,
with the parts plain or silvered, or coated with any materials having reflecting
surfaces-as found adaptable to the positions they are to be placed in. The said
glass vessels to be partly filled with water, spirit, or other suitable liquid.or
solution, hot, to expand and expel the greater part of the air, and then hermetically
sealed. On the liquid cooling it forms a partial vacuum in the unfilled part of the
vessel, which allows for expansion of the liquid caused by the change of temperaturé
of the surrounding bodies; we prefer spirit to avoid breakage of the glass vessels by
freezing. The said glass vessels are set in metal or wood, or other suitable material,
cases, or frames.
These cases or frames are moved on quadrants, or parts of circles of metal or
wood with pins or holes formed on rims running on plates or bearers, which may
be flat or curved with corresponding holes or pins. By these pins the quadrants
or part circles are kept in their required positions on the plates or bearers, or this
may be effected by check chains and set screws.
For directing the daylight we place, in combination with the glass vessels,
polished plates of metal or glass silvered, flat; curved, or indented in metal cases in
or on metal or wood carriages, which are moved to the required angle to reflect,

page_text: diffuse, or concentrate the daylight by means of screws and nuts, attached to which
are sheaves with universal joints worked by cords or chains.
In order that our Invention may be the more fully understood, we will proceed
to describe the Drawings annexed-hereto.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a plan of one of the glass vessels partly filled with liquid; Figure A
is a side view of same; Figure b is a section of same; x is the chamber to allow
for expansion of liquid. The face S may be covered with a material having a
reflecting surface.
This shaped vessel is for the purpose of reflecting the daylight
to position, as shown by arrow.
Figure 2 is the plan of another glass vessel partly filled with liquid.
x, x, are
the chamber to allow for expansion of liquid. This shaped vessel is for the
purpose of diffusing the daylight. C is a side view of saine; d is a section of
same.
Figure 3 is a plan of another vessel partly filled with liquid. X, X, are the
chamber to allow for expansion. This shape is used to concentrate the daylight;
e is a sido view of same, and f is a section. The vessels shewn are square on
plan, but they may be round or polygonal shape.
Figure 4 is a plan of a metal frame formed with recesses to receive the glass
vessels in which they are set.
Figure 5 is a section at 2, 2, on Figure 4, shewing metal quadrant g on same,
running on bearer h for moving frame with the glass vessels set therein; k, h, k, l,
are reflectors used in combination with the glass vessels, shewn by Figs. 2 and 3,
for reflecting daylight; i is the carriage carrying the same on pin 0; j and I are
the screw and nut for giving motion to carriage i to set reflectors k, k, k, k, to the
required angle; m is a sheave with universal joint motion n.
Figure 6 is an end view of Fig. 4.
The same letters of reference on the various Figures denote similar parts.
We do not hold ourselves to these precise details, but substantially our method
of effecting the object of our Invention.
Having now described the nature of our Invention, and the manner of effecting
the same, what we claim is, the means of transmitting daylight by the use of glass
vessels of various forms partly filled with suitable liquid or solution with the
mechanical motions for moving and adjusting the same to the positions required."
In witness whereof, we, the said Frederick Alma Hamilton and Frederick
Hamilton, have hereunto set our hands and seals, this Twelfth day of
December, in the year of our Lord One thousand eight hundred and seventy-
seven.
FREDERICK ALMA HAMILTON. (LS.)
FREDERICK HAMILTON.
(L.S.)