Improvements in Carriage Lamps.
Year: 1894

page_text: Date of Application, 20th Mar., 1894
Complete Specification Left, 20th Dec., 1894-Accepted, 26th Jan., 1895
PROVISIONAL SPECIFICATION.
Improvements in Carriage Lamps.
I, THOMAS HARRISON TOD CHALON, of Inworth Grange, Kelverton, in the
County of Essex, Colonel (retired list) Madras Cavalry, do hereby declare the
nature of this invention to be as follows:-
--
This invention relates to improvements in carriage lamps, the improvements
having for object to so construct the lamp that the light instead of being thrown
directly forward and sidewise as hitherto shall be thrown directly forward and
obliquely either right or left as the case may be.
For this purpose instead of making the case or lantern of the lamp square in
cross section I make it rhomboidal in cross section, one reflector being placed on
the back of the lamp and the other on the right or left hand inclined side according
to whether the lamp is for the left or right side of the carriage.
By this arrangement it will be obvious that the rays of light from the lamp will
be directed forward as hitherto and also obliquely instead of at right angles which
is of great advantage in dark roads as it enables the driver of the carriage to see
obstacles at the sides of the road before reaching them.
In the case of dash-board lamps I propose to make them square and to place
the lamp at an angle but the corner or edge which is at the back of the lamp is cut
off and provided with a flat back which has the effect of preventing the dazzle of
the ordinary dash-board lamp.
In all cases I prefer to make the reflectors adjustable so that the direction of
the rays of light may be varied if necessary.
Dated this 20th day of March 1894.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
1
Improvements in Carriage Lamps.
I, THOMAS HARRISON TOD CHALON, of Inworth Grange, Kelverton, in the
County of Essex, Colonel (retired list) Madras Cavalry, 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 improvements in carriage lamps, the improvements
having for object to so construct lamps that the light instead of being thrown
directly forward and sidewise as hitherto shall be thrown directly forward and
obliquely either right or left as the case may be.
For this purpose instead of making the case or lantern of the lamp square in
cross section I make it rhomboidal in cross section, one reflector being placed on
the back of the lamp and the other on the right or left hand inclined side according
to whether the lamp is for the left or right side of the carriage.
By this arrangement it will obvious that the rays of light from the lamp will be

page_text: directed forward as hitherto and also obliquely instead of at right angles which is of
great advantage in dark roads as it enables the driver of the carriage to see
obstacles at the sides of the road before reaching them.
In the case of a dash-board lamp I propose to make it substantially square and
to place the lamp at an angle but the corner or edge which is next the dash-board
is cut off to form a flat back.
In all cases I prefer to make the reflectors adjustable so that the direction of the
rays of light may be varied. if necessary.
To enable my invention to be fully understood 'I will describe the same by
reference to the accompanying drawings, in which :-
Figure 1 is an elevation of a carriage lamp constructed according to my invention
and adapted for throwing a light forwardly and obliquely to the left:
Figure 2 is a sectional plan of the same:
Figure 3 is an elevation of a dash-board lamp; and,
Figure 4 is a sectional plan of the same.
Similar letters of reference indicate corresponding parts in the several figures.
a is the body of the lamp which as shewn is provided with a tube for a candle
but which may be constructed to receive an oil or other lamp. The body a is, as
shewn most clearly in Figure 2, of rhomboidal form, the two sides b, c being
provided with glasses or lenses and the two sides d, e provided with reflectors d'; e,
the reflector d behind the candle being arranged to throw a light directly forward
in the direction of the arrow f, while the reflector e¹ is arranged at an obtuse angle
to the reflector d' so as to direct the rays of light obliquely forward, as indicated
by the arrow g.
·
In the arrangement of my invention shewn in Figures 3 and 4, wherein the lamp
is adapted to be hung upon the dash-board of a vehicle, the body of the lantern is
made substantially of rectangular shape, one corner being cut off at h, as shewn in
Figure 4, the flat surface formed lying against the dash-board, the reflectors being
then in a position in which one will throw its light slightly forward and obliquely
to one side and the other slightly forward and obliquely to the other side. The
reflectors which in this modification are represented as being corrugated are
preferably pivotted at their forward edges at i, i and arranged in conjunction with
regulating screws and nuts j, j by means of which the angles of the reflectors may
be adjusted as desired, springs k, k between the reflectors and the walls of the
lanterns serving to press the said reflectors forwards when the tightening nuts are
slackened. The surface between the rear edges of the reflectors formed by cutting
off the angle of the lamp, as herein before described, is deadened or made non-
reflecting so that no directly forward rays shall be directed from the lantern,
thereby obviating the dazzling effect which is produced by such rays in ordinary
dash-board lamps thus enabling anyone approaching the vehicle to see the horse
which is of importance where a dash-board lamp is used alone.
Although in the arrangement shewn in Figures 1 and 2 the reflectors are
represented as being fixed it will be obvious that the side reflector may be made
adjustable as described by reference to Figures 3 and 4.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. A carriage lantern having the reflectors arranged at- an obtuse angle to each
other so that one of the said reflectors shall direct the rays directly forwards and
the other obliquely forwards, substantially as described.
2. In a carriage lantern arranging the side reflector so that it may be adjusted
to permit of varying the direction in which the rays of light reflected therefrom
are projected, substantially as described.
3. The arrangement of my invention substantially as described with reference
to Figures 3 and 4 of the accompanying drawings wherein a rectangular lamp is
arranged with one of its diagonals projecting forwardly, the angle at the rear of
تقدية

page_text: the lamp being flattened so as to lie against the dash-board and being formed with
a dead surface between the reflectors, substantially as set forth.
4. The manufacture and use of the improved carriage lanterns hereinbefore
described and illustrated respectively in Figures 1 and 2 and Figures 3 and 4 of
the accompanying drawings.
Dated the 20th day of December 1894.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.