IMPROVE- FOR PHOTOGRAPHIC MENTS IN APPARATUS FOR PRODUCING ARTIFICIAL LIGHT PURPOSES
Year: 1885

page_text: спою гарше гигрово
I, WILLIAM JOHN SHIRTCLIFF of 14 Paradise Place, Goole, in the County of
Yorkshire, Decorator, do hereby declare the nature of my invention for IMPROVE-
FOR PHOTOGRAPHIC
MENTS
IN APPARATUS FOR PRODUCING ARTIFICIAL LIGHT
PURPOSES to be as follows:-
A rectangular reflector parabolic in section, having-near the vertex, firstly ;—
a conical pipe or flue, and, secondly; a socket to receive the standard, which is
a parallel bar of metal, having at its lower end a ring or guard.
A clamp consisting of any number of jaws opening by their own action, and
capable of being closed by a screw, the said clamp attached to the aforesaid
standard by suitable springs, admitting of adjustment to any height.
A wire basket with suitable clamping arrangement, admitting of adjustment to
any height on the aforesaid standard.
J
An arm pivoted at its inner or lower end, carrying at its upper or outer end
a lamp which may, by the action of a spring or weight, be brought under the
aforesaid pipe or flue.
A latch or detent, to maintain the aforesaid arm and lamp in any desired
position, or to release it at will

page_text: Photographic Purposes.
I WILLIAM JOHN SHIRTCLIFF, of 14 Paradise Place, Goole, in the County of
York, Decorator, do hereby declare the nature of my invention for PRODUCING
ARTIFICIAL LIGHT FOR PHOTOGRAPHIC PURPOSES, and in what manner the same
is to be performed, to be particularly described and ascertained in and by the
following statement:-
My invention relates to an apparatus designed to afford a simple and ready
means of obtaining artificial light by the combustion of Magnesium,-dispensing
with the use of gas, and being of such a portable character as to be easily carried
from place to place.
In the accompanying drawings similar letters have reference to similar parts in
each view.
The apparatus consists firstly of a reflector A,-which may be either of polished
metal, or silvered glass or other suitable material,-, preferably rectangular in
elevational section and parabolic in vertical and horizontal sections, having in the
upper part an opening B to allow the products of combustion to escape.
In the lower part is fixed the socket D which is to receive the standard E.
The standard is a parallel bar of metal having fixed near the bottom a ring L,
which I name the guard. The use of the standard is to carry the clamp (herein-
after described) and to permit of its adjustment to any height in relation to the
concentrator C, which is a conical tube of metal open at both ends, the wider end
is fixed to the bottom of the reflector, (which is perforated for the purpose) in
Buch position as to allow the narrow end to stand directly under the afore-
mentioned guard when placed in position with the standard.
The use of the concentrator is to concentrate and direct the flame emitted by the
lighter N, hereinafter described.
A clamp F consisting of a plate of metal called the bedplate, having, at the front
side, projecting at right angles thereto; two cheeks J parallel to each other.
Between these cheeks are fixed a number of tongues of metal G pinned or other-
wise fastened at theit upper ends to the said cheeks, and free at their lower ends
to open by their own action; or to be closed at will by means of a setscrew H.
To the back of the bed plate are affixed two other cheeks which act as guides and
also carry a binding spring K, or a setscrew, to enable the clamp to be maintained
at any height on the standard.
The back of the reflector is provided with a lighter consisting of a metal cup N
attached to one end of an arm M, the other end of which is pivoted on or jointed
to a stud P suitably fixed in relation to the perforation in the reflector, as to admit
of the cup N being brought directly under the concentrator. A spring R, or a
weight is attached to the arm by means of which it is drawn into position under
the concentrator and there held. To maintain the arm in position away from the
concentrator a latch or detent S is provided, which may consist of a lever pivoted
at its centre, and having at one end hook, or notch to engage a stud suitably fixed
1

page_text: on the arm.
The other end of the lever is free to be actuated by whatever means
may be desired.
To use the apparatus, I erect the reflector (with its accompanying parts) on the
stand provided for the purpose, adjusting the height and position with due regard
to the proper lighting of the subject. Having determined the quantity of.
Magnesium ribbon to be burnt, I divide it into short and equal lengths 1 now
take the clamp, with its standard and place the lengths of ribbon between the
metal tongues, fixing them by means of the setscrew, and being careful to so
arrange them that their lower ends shall come within the guard. I now place the
standard in the socket. Having now (by means of the latch) secured the lighter
away from the concentrator, I pack the cup lightly with cotton wool,-which
I saturate with methylated spirit. I now light the spirit, aud, having previously
focussed the subject to be photographed, withdraw the latch, allowing the cup to
fall into its normal position, the flame from the ignited spirit now plays on the
Magnesium which rapidly ignites.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is
1st. The use, alone or in combination with a reflector-, of a conical tube for
the purpose set forth, and in the manner herein described.
2nd. A clamp consisting of any number of metal tongues confined between
cheeks, for the purpose, and in the manner herein described and set forth.
3rd. A lighter consisting of a cup on an arm (pivoted), and actuated by a spring
or weight as described herein, and for the purpose set forth.
Dated this 17th dow of Sentember 1986