IM- PROVEMENTS IN MODERATOR OR CARCEL LAMPS
Year: 1868

page_text: LETTERS PATENT to Henri Adrien Bonneville, of the British and
Foreign Patent Offices, 24, Rue du Mont-Thabor, Paris, in the
Empire of France, and 10, Sackville Street, Piccadilly, in the
County of Middlesex, Patent Agent, for the Invention of "IM-
PROVEMENTS IN MODERATOR OR CARCEL LAMPS."-A communication
from Guillaume Auguste Richner, residing at No. 1, Rue du
Hazard, Paris, Merchant.
Sealed the 7th August 1868, and dated the 14th February 1868.
PROVISIONAL SPECIFICATION left by the said Henri Adrien
Bonneville at the Office of the Commissioners of Patents, with his
Petition, on the 14th February 1868.
I, HENRI ADRIEN BONNEVILLE, of the British and Foreign Patent*
Offices, 24, Rue du Mont-Thabor, Paris, in the Empire of France, and
10, Sackville Street, Piccadilly, in the County of Middlesex, Patent
Agent, do hereby declare the nature of the said Invention for "IMPROVE-
MENTS IN MODERATOR OR CARCEL LAMPS," a communication from Guillaume
Auguste Richner, a person resident at No. 1, Rue du Hazard, in Paris
O aforesaid, Merchant, to be as follows:-
The improvements communicated to me relate to an apparatus or
mechanism adapted to moderator or carcel lamps, which by means of

page_text: automical clockwork gives warning when the mechanism of the lamp
requires winding up. They consist in fixing under the gallery which
receives the glass tube, and on the uprights which support this gallery
and the upper part of the lamp, an alarm bell or any other such like
or analogous sounding apparatus and a little moveable hammer carrying
a tail piece or appendix well nigh reaching the ordinary rack of the
lamp. The upper portion of the said rack is furnished with one or
several studs which when the said rack has well nigh attained the lower
end of its course, consecutively hook on to the hammer, which being
provided with a spring actuating it strikes when freed from the studs
the bell or alarum as many times as there are studs on the rack.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Henri Adrien Bonneville in the Great Seal
Patent Office on the 13th August 1868.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRI
ADRIEN BONNEVILLE, of the British and Foreign Patent Offices, 24,
Rue du Mont-Thabor, Paris, in the Empire of France, and 10,
Sackville Street, Piccadilly, in the County of Middlesex, Patent Agent,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourteenth day of February, in the
year of our Lord One thousand eight hundred and sixty-eight, in the
thirty-first year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Henri Adrien Bonneville, Her
special licence that I, the said Henri Adrien Bonneville, my ex-
ecutors, administrators, and assigns, or such others as I, the said
Henri Adrien Bonneville, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and
at all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for "IMPROVEMENTS IN MODERATOR OR CARCEL LAMPS,"
a communication from Guillaume Auguste Richner, a person resident at

page_text: No. 1, Rue du Hazard, in Paris aforesaid, Merchant, upon the condition
(amongst others) that I, the said Henri Adrien Bonneville, my executors
or administrators, by an instrument in writing under my, or their, or
one of their hands and scals, should particularly describe and ascertain
the nature of the said Invention, and in what manner the same was to
be performed, and cause the same to be filed in the Great Seal Patent
Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that I, the said Henri Adrien Bonneville, do
hereby declare the nature of the said Iuvention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement :-
The improvements communicated to me relate to an apparatus or
mechanism adapted to moderator or carcel lamps, which by means of
automatical clockwork gives warning when the mechanism of the
lamp requires winding up. They consist in fixing under the gallery
which receives the glass tube, and on the uprights which support this
gallery and the upper part of the lamp, an alarm bell or any other
such like or analogous sounding apparatus and a little moveable
hammer carrying a tail piece or appendix well nigh reaching the
ordinary rack of the lamp. The upper portion of the said rack is
furnished with one or several studs which when the said rack has well
nigh attained the lower end of its course consecutively hook on to the
hammer, which being provided with a spring actuating it strikes when
freed from the studs the bell or alarum as many times as there are
studs upon the rack.
Having thus summarily described the said improvements I will
now proceed more fully to describe the same, reference being had to
the accompanying Drawings, in which Figures 1, 2, 3, 4, 5, 6, 7, 8, 9,
10, 11, 12, 13, and 14 represent detail views, and Figures 15, 16, 17,
18, 19, and 20 the combination of the apparatus with the upper parts
of lamps variously arranged. This apparatus consists of a bell made
of metal, crystal, or other such like vibrating material, fixed by a rod
to a support or adjusting metal plate; of a hammer with either head
and rod, or else simply in cut-out sheet iron, so as to strike the bell
by reason of the pressure of a single or double stud fixed towards the

page_text: upper extremity of the rack; of a single or double stud; of an adjusting
metal plate supporting the hammer and the bell, and sheltering the
inside of this latter from the refuse of wicks, matches, and of all that
may fall in the interval existing between the uprights, and so affect
its sonority. The whole is contained in the circular gallery with which
every lamp is provided. Several bells may necessarily be used instead
of one in large sized lamps if it is required to vary the sounds of the
ringing. These bells may be coupled concentric to each other,
superposed or placed to the right or left of the uprights, the hammer
disposed either internally or externally in such manner as to fall one
after another on the same bell or on different bells. The stud is
plain or with front notches, Figure 1, or double with lateral notches,
Figure 2; it is placed in the same manner as the former. For the
plain stud the fixture tongues A, Figure 1, are cut in such wise that
they do not extend beyond the back of the rack. For the double
stud, when the apparatus has but one hammer, the useless notches
must further be suppressed, Figures 3, 4, 11, and 13. When the stud
is suitably prepared the inward projection which it presents is inserted
between two teeth of the rack, on the sides of which the fixture
tongues are applied and soldered. These only show between them a
very narrow space, so that when the rack is rather large it is necessary
to enclose them in two recesses more or less deep made with a file C, C,
Figure 7. It happens sometimes that the stud has to be placed in
an inverse manner, that is to say, on the back part of the rack, as
shown in Figure 5. When this is the case a recess B, Figure 6,
will first of all have to be made on the back of the rack with a file,
in order to lodge the inward projection of the stud. The stud should
be disposed bolt upright and in such manner that its upper and lower
notches do not project the one more than the other.
The single
stud or that with front notches is only used when the tail of the
hammer should be facing the rack, Figures 12, 15, 16, and 19. The
double stud or that with lateral notches is used when the tail of the
hammer is to pass on one of the sides of the rack, Figures 11 and 13,
or when the apparatus is furnished with two hammers, Figure 14.
The apparatus is always placed on the side opposite to the gutter
through which falls the oil in excess to prevent the bell being inundated
with oil. There are lamps where at first sight it would seem difficult
to conform with this rule; those, for instance, the pinion of which

page_text: projects forward from the uprights; or, again, those the pipe (through
which the oil rises) of which is placed externally between the two
uprights and describes a curve E, Figure 16, which opposes the
application of the apparatus. To obviate these two difficulties it is
necessary, in the first case, to hollow out the metal plate as shown in
Figure 8, and in the second case as shown in Figure 9. The envelope
of the pinion and the curved part of the tube will be lodged in these
hollows, as shown in Figures 15, 16, and 19. In lamps the rack of
which, instead of being outside, is hidden in one of the uprights,
Figure 17, the hammer is placed somewhat more outside, Figure 10,
and in the upright which contains the rack an opening F, Figure 17,
is made which discovers the rack. The tail of the hammer engages
in this opening and travels towards the stud H. Sometimes, though
seldom, the gutter must be carried to the opposite side; the apparatus
is then without any difficulty put in the place which the gutter
occupied. This apparatus is applied by means of two elbowed supports
M, M, Figures 11, 12, 13, and 14, which are soldered to the uprights at
a convenient height, that the apparatus may be put as high as possible,
as shown in Figures 19 and 20. It is fixed on to these supports by
means of a head screw which is run into a wormed hole N, Figure 18;
another hole fronting this one must previously be pierced in each
side of the metal plate. These sides, moreover, must not be allowed
to exceed the necessary length, so as not to project beyond the elbowed
portion of the supports. Before definitively putting the apparatus in
its place the tail of the hammer should be cut so that the notches
of the stud catch on to but a small proportion of its length, Figures
15 and 16. Its bevelled form should be retained to facilitate the
passage of the stud when the rack is wound up. The studs may be
adapted upon the racks by means of squares and fixed by means of
keys, which allow of taking them off to clean the lamps, as shown in
Figure 7 bl
Having thus fully described the nature of the said Invention, and
the manner of carrying the same into effect, I would have it understood
that I do not intend to confine myself to the exact details above given,
as the same may obviously be modified without departing from the
principle of the Invention, but what I claim is, the use of a bell
or alarum in combination with the rack of carcel or moderator lamps

page_text: furnished with one or several studs operating substantially as herein-
before fully set forth and described.
In witness whereof, I, the said Henri Adrien Bonneville, have
hereunto set my hand and seal, this Eighth day of July, in the
year of our Lord One thousand eight hundred and sixty-cight.