IMPROVEMENTS IN APPARATUS FOR AND MEANS OF REGULATING AND CONTROLLING THE DIFFUSION OF ARTIFICIAL LIGHT
Year: 1882

page_text: LETTERS PATENT to Joseph Rideal Smith Architect and Jonathan Ingham
Learoyd Accountant both of Halifax in the County of York, for an Invention
of "IMPROVEMENTS IN APPARATUS FOR AND MEANS OF REGULATING AND
CONTROLLING THE DIFFUSION OF ARTIFICIAL LIGHT "
PROVISIONAL SPECIFICATION left by the said Joseph Rideal Smith, and
Jonathan Ingham Learoyd at the Office of the Commissioners of Patents on
the 23rd February 1882.
JOSEPH RIDEAL SMITH, Architect and JONATHAN INGHAM LEAROYD, Accountant,
both of Halifax, in the County of York, "IMPROVEMENTS IN APPARATUS FOR
AND MEANS OF REGULATING AND CONTROLLING THE DIFFUSION OF ARTIFICIAL
LIGHT
"
This Invention consists of a combination of beacons and adjustable radial
reflecting lamp for diffusing artificial light such as the electric light over a defined
area
The heights of these beacons and their distances apart from each other will
necessarily vary according to local circumstances and the character or strength of the
light employed they may partake of the character of a lighthouse or they may be
constructed of open iron framework of neat and elegant design or advantage may
be taken of lofty public buildings.
The lanterns are of a composite character each lantern being subdivided into
sections, the number being defined according to the position and function of the
beacon, each section is fitted with a separate light or set of lights adjustable wings
and reflectors for raising or depressing or concentrating the rays according to the
state of the atmosphere, and so arranged that the rays from each section are
reflected and brought into diametrical opposition with those of the corresponding
light of the adjoining beacon so as in machine shops and like works to obviate or
avoid shadows and forming one body of light and evenly casting the same over the
area intended to be operated upon.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Rideal Smith and Jonathan Ingham Learoyd in the Great
Seal Patent Office on the 23rd August 1882.
JOSEPH RIDEAL SMITH Architect and JONATHAN INGHAM LEAROYD, Accountant
"IMPROVEMENTS IN APPARATUS FOR
both of Halifax in the County of York.
AND MEANS OF REGULATING AND CONTROLLING THE DIFFUSION OF ARTIFICIAL
LIGHT
"
This invention consists of a combination of beacons and adjustable radial
reflecting lamp for diffusing artificial light such as the electric light over a defined
area.
The heights of these beacons and their distances apart from each other, will
necessarily vary according to local circumstances and the character or strength of
the light employed, they may partake of the character of a lighthouse or they may
be constructed of open iron framework of neat and elegant design or advantage
may be taken of lofty public buildings.
The lanterns are of a composite character each lantern being subdivided into
sections, the number being defined according to the position and function of the
beacon, each section is fitted with a separate light or set of lights adjustable wings
and reflectors for raising or depressing or concentrating the rays according to the
state of the atmosphere and so arranged that the rays from each section are
reflected and brought into diametrical opposition with those of the corresponding
light of the adjoining beacon so as in machine shops and like works to obviate or
avoid shadows and forming one body of light and evenly casting the same over the
area intended to be operated upon.
Such being the nature and object of this our said invention we will now
proceed to describe the particulars thereof and in order that the invention may be
fully understood we have hereunto annexed 6 sheets of drawings illustrative
thereof and have marked the several views or figures with figures and letters of
reference, like figures or letters of reference indicating the same part in the several
views or figures of which Fig. 1 is an elevation of open ironframe work (collapsed)
and reflector lamp. Fig. 2 is a plan of Fig: 1 also of apparatus for raising the
iron frame-work shewn at Fig: 1-Fig: 3 is outline elevation of iron frame-work
expanded or elevated. Figs 4 to 12. inclusive are details of joints of iron frame
work. Figs 13. 14. and 15 sections of tubing used in construction of the iron
frame-work. Fig: 16 is elevation (partly in section) of lamp. Fig: 17 is sectional
elevation on line A. B of one compartment or section of reflector lamp. Fig: 18 is
a plan of lamp-Fig. 19 is a diagram illustrating system of diffusing light over a
defined area composed of several series. Fig: 20 is a plan of one of the
Beries.
At A is the lamp mounted upon a frame of hinged and jointed tubes B the whole
being carried on the carriages C. C. C each carriage having wheels or pulleys on
the rails E. E. At F of each carriage is an axle or cross bar having nut thereon
through which the screws G. G¹. G². work so that on motive power being applied
to the coupling or joint H the screws will cause the three carriages to approach the
centre J motion being communicated from the first screw G to the screws G¹. G
by means of the mitre wheels K-As the carriage's move inwards the frame B will
expand vertically assuming the position shewn at Fig: 3 The reverse motion
on G will collapse the frame to position shewn at Fig: 1-In case the frame is
to be erected permantly (that is to say) not required to be lowered or collapsed
after clevation as described the carriage C is provided with bolt holes C¹, 0³, C³
"

page_text: for the introduction of "lewis bolts" and tie rods so that on the withdrawal of the
carriage the bed plates L will be received and rest upon ashlar blocks or other
foundation provided therefor. The corner joints of the bottom frame work are
attached to the plates L L as shewn at Figs 4 and 5 and marked with the letter M
middle joint N (see Fig: 11) P angle joint. The joint R (Figs 6) being the corner
joint is provided with universal joint shewn at S to allow the necessary play.
T being a junction joint for supporting the remaining angles of the angles of the
platform of the lamp illustrated in position for supporting the platform of the
lamp at Fig: 6. Figs 7 and 8 are elevation and plan of top centre joint W
Figs 9 and 10 are sectional elevations of detail N. The lamp A into sections or
compartments ✗ each compartiment containing an adjustable reflector Y. A ladder
or pulley hoist is provided in the interior of the frame for ascent to the lamp when
necessary Z. Z. Z. are guy wire ropes employed as stays. The frame may be
constructed of iron tubes or of angle iron the strength of which will necessarily vary
according to the height of the framework-for example where as shewn by the
drawings the frame is composed of nine lifts the proportionate strength of the
several lifts should be for two bottom lifts 5-for 3 next lifts 4-remaining 4
lifts 3.
The arrangement of four sections or spaces to be illuminated is shewn by Fig 19
in which example four series of hexagonal figures each of which represent defined
areas of configuration or angles similar to the shape of the lamp and its several
compartments so that each angular space is similar to and directly illuminated by
the beam of light from the corresponding space or section of the hexagonal lamp
and it will be seen that in the several series 1. 23 and 4 the same principle
prevails that is to say-the angle or area corresponding to and opposite each
section of the lamp is illuminated as described so that the rays or beam of
light from each section is diametrically opposite the rays or beams from the
corresponding section. The centre circle a represents the motive power station
when electricity light is used.
The four series illustrated by Fig: 19 shew lamp at one fourth mile apart,
diagram 20 shew lamp at one third mile apart, 22 one mile apart, 21 lamp half
a inile apart. The apparatus is equally applicable when gas is the illuminating
agent.
Having thus fully described the nature and particulars of this our said
invention together with the manner in which the same is to be or may be
performed or carried into practical effect I would have it understood that what I
claim as my invention is
The construction and use in combination of lanp A adjustable reflector Y and
framework B in manner described and illustrated by drawings annexed.
In witness whereof I the said Joseph Rideal Smith have for and on behalf of
myself and the said Jonathan Ingham Learoyd hereunto set my hand
and seal this Twenty second day of August in the year of our Lord One
thousand eight hundred and eighty two.
Witness
WALTER BRIERLEY
Patent Agent
Halifax & Blackburn.
J. R. SMITH. (L.S.)