Improvements in Instruments for Condensing Rays of Light, Natural or Artificial.
Year: 1894

page_text: Date of Application, 14th Aug., 1894-Accepted, 6th Apr., 1895
COMPLETE SPECIFICATION.
Improvements in Instruments for Condensing Rays of Light, Natural
or Artificial.
I, ANTONINO SCIASCIA, Physician, of Via Cavour 194, Rome, Italy, do
hereby declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement :-
This invention relates to an instrument designed to condense sunlight or the
light of other luminous bodies, natural or artificial.
This instrument is represented in the accompanying drawings and comprises;--
1. A bar or standard R, Figure 1, mounted at C on a foot or base B, in such
manner as to be capable of being turned round and fixed in any desired position by
a set-screw V. Just above this connection it is provided with a friction joint, so
that it may be adjusted or swing over at will in a vertical plane on a horizontal
pivot A, and held fast in any desired position, (Figure 2).
2. An arm R' similarly mounted in a socket E at the top of the standard R in
which it may be turned round at will and fixed by the set-screw V₁, and provided
with a friction joint and pivot A', so that it may in like manner be swung in a
vertical plane and held fast in any desired position, at the operator's pleasure
(Figure 1).
3. A spring-clip M provided with lugs and a clamping screw V" as also with a
socket and set-screw V₁ in which is carried so as to be movable longitudinally on
the arm Ra frame or case D I (Figs. 1, 3 and 4) provided with one or more
lenses such as L, which may be double-convex or plano-convex, clear uncoloured or
coloured, as also with a number of flat pieces of glass of various colours fitting into
grooves such as a a (Fig. 4) provided for the purpose in opposite sides of the case
or holder D I, such slips of coloured glass being used with the lens or lenses either
singly or several combined according to the requirements of the moment and to
facilitate the use of the apparatus, which may sometimes need the use of a number
of plain or coloured glass strips, dependent upon the nature of its application.
A double convex lens of from 35 to 40 centimetres in diameter & of any suitable
colour, may also be employed.
The cases or holders may vary in dimensions, and in the number of lenses and
glass screens employed, any one being very easily detached from the sliding clip M,
by simply unscrewing the set-screw Vi so as to allow the stud of the case to be
withdrawn from the socket of the clip, and so permit the substitution of any other
case, at the operator's pleasure.
This apparatus when applied to sunlight or other source of light condenses and
projects the rays to a focus which can readily be brought to bear upon any point
of the object to be examined, the intensity of the concentrated beam of light being
regulated by the operator at will, according to the conditions and exigencies of the
matter in hand.
With many lenses in order the better to attain the desired object it may be
advantageous to make use of a double-convex lenticular shaped bottle (Figure 5)
filled with liquid, for therapeutical purposes.
One may even employ a square plate of glass Q provided with convex, double-
convex or even hemispherical prominences or projections, and concave or double-
concave hollows or recesses, such as shown at y z¹ (Figure 6).

page_text: Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed 1 declare that what
I claim is ;-
1. An instrument or apparatus comprising one or more double-convex or plano-
convex lenses with a number of plain or coloured flat glass slips or squares capable
of being used singly or in combination for the purpose of condensing solar or other
rays of light requiring to be projected in a concentrated beam upon the bodies on
which their luminous action is to be brought to bear.
2. The use of the lenses mentioned in Claim 1 double-convex or plano-convex plain
or coloured of any dimensions form or thickness used without or with the plain or
coloured flat glass slips or square (also mentioned in Claim 1) in indeterminate
number adapted to the apparatus described in Claim 1 or constructed in any other
manner capable of facilitating the application thereof to the particular body on
which it is intended to act by means of the more or less condensed light emitted by
the apparatus.
3. The double-convex coloured lens of from 35 to 40 centimetres in diameter
substantially as described.
4. A bottle of a lenticular discoid shape filled with liquid as may be required for
therapeutical purposes and used in substitution for the lens described in Claim 3 or
together with the same or with coloured glasses.
5. A square glass plate plain or coloured at the centre and at the periphery of
which round or double convex prominences (or concave recesses) transparent plain
or coloured are provided substantially as described & illustrated in the accompanying
drawings.
Dated this 14th day of August 1894.
W. P. THOMPSON & BOULT,
Agents for the Applicant.