An Improved Device or Contrivance for Automatically Extinguishing Candles and the like.
Year: 1889

page_text: Date of Application, 25th Nov., 1889
Complete Specification Left, 25th Sept., 1890-Accepted, 1st Nov., 1890
PROVISIONAL SPECIFICATION.
An Improved Device or Contrivance for Automatically Extinguishing
Candles and the like.
1, WILLIAM ROBERT MUDD, of 3 Evington Street, Leicester, Engineer, do hereby
declare the nature of this invention to be as follows:-
The improved device or contrivance may consist of a preferably split tube or
ring capable of partly enclosing and of being moved up or down the candle.
The tube or ring may carry at its upper end a preferably hinged and spring-
controlled cap or thimble which may be retained in a position at a right angle to the
tube or ring by one end of a spring controlled lever or equivalent the other end of
which passes through a slot in the tube and bears against the circumference of the
candle.
Immediately the candle has burned away below the slot mentioned the spring-
controlled lever will at once project a further distance through the slot thereby
disconnecting the cap or thimble which will immediately close over the flame of the
candle and extinguish it. It is obvious that a variety of means may be employed to
hold the thimble or cap out of contact with the upper end of the candle and for
automatically causing it to extinguish the flame.
Dated this 25th day of November 1889.
W. P. THOMPSON & BOULI,
Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Device or Contrivance for Automatically Extinguishing
Candles and the like.
I, WILLIAM ROBERT MUDD, 3 Evington Street, Leicester, Engineer, 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:-
The object of this invention is the provision of a device or contrivance which
shall automatically extinguish a candle when a pre-determined portion shall have
burned away.
The improved device or contrivance may consist of a preferably split tube or ring
capable of partly enclosing and of being moved up or down the candle.
The tube or ring may carry at its upper end a preferably hinged or spring-
controlled cap or thimble which may be retained in a position at a right angle to the
tube or ring by a spring-controlled lever or equivalent which passes through an
opening in the tube and bears against the circumference of the candle.
Immediately the candle has burned away a pre-determined distance the spring-
controlled lever will at once project a further distance through the opening thereby
disconnecting the cap or thimble which will immediately close over the flame of the
candle and extinguish it.
In order that the invention may be more completely understood, reference is made
to the accompanying drawings in which
Figure 1, represents a perspective view of the extinguisher forming the subject of
this invention.
Figure 2, is a side elevation of the same shewing it in position after the candle flame
has been extinguished.
Figure 3, is a vertical section of the extinguisher shewing the position in which it
is applied to a candle.
Figure 4, is a plan of the spring-controlled lever D

page_text: Figure 5, is a plan of the extinguisher.
A, is a short sleeve or tube which may be of metal, or of any material which is a
non-conductor of heat.
This tube A, is split at A¹ in the direction of its length, (as shewn most clearly in
Figures 1. and 3.) to admit of it being placed over various sized candles, and has hinged
at its upper end a spring-controlled cap or thimble B.
The cap B, is hinged to the tube A, by a pin B¹ passing through lugs B2 and A³
on the cap and tube respectively.
Soldered or otherwise secured to the back of the cap B, is a bar C, recessed at C
Figure 2, and the function of which is to engage with the lever D, as shewn in
Figure 3, and keep the cap B, in position at a right angle to the tube A, to be ready
for extinguishing the flame at the required time. D, is a horizontal spring-controlled
lever recessed at D³-shewn in plan in Figure 4-and partly enclosed within and
supported by a sleeve or casing Di₁ fixed to the periphery of the tube A.
The forward end of the lever D, passes through an opening in the tube A and in
its normal position bears against the circumference of the candle within the tube.
The outward end of the lever D, is of square section to prevent it turning and is
constructed with an angle piece D4 so that it can be more readily drawn into its
outward position as shewn in Figures 1, and 3.
A collar D2 is formed on the lever, and between which and the partition plate D³
of the case D', the spring E is compressed.
The pin B¹ is encircled by a spiral spring B³ the terminal ends of which are extended,
as shewn, to admit of being compressed between the upper surface of the case D' and
the under surface of the cap B when the latter is in the position indicated by
Figures 1, and 3.
Before placing the device upon the candle the cap B is drawn back to the position
as in Figures 1, and 3 and the candle, is inserted, and the inner end of the lever D is
then in contact with the circumference of the candle, and the spring E is under
compression between the collar D2, and the partition plate D³.
Immediately the burning candle has been consumed the required distance, or the
body of the candle becomes soft by heat the lever D, under the influence of the
spring E, is moved forward so that the levers D, and C, become disengaged and
the cap B, by means of the spring B³, is immediately forced into its vertical position;
as shewn in Figure 2, and the flame is extinguished.
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. In a device for extinguishing candles and the like, the combination with a tube
such as A, of a hinged spring-controlled cap or thimble such as B substantially as
described and illustrated in the accompanying drawings.
2. In a device for extinguishing candles and the like the combination of a tube
such as A, spring-encircled lever such as D, cap or thimble such as B, bar such as C,
and spring such as B3 substantially as described and illustrated in the accompanying
drawings.
3. The complete device, constructed, arranged, and operating substantially in the
manner and for the purpose described and illustrated in the accompanying drawings.
Dated this 24th day of Sentember 1890.
WILLIAM ROBERT MUDD.
W. P. Thompson & Boult,
Agents for the Applicant.
WILLIAM ROBERT MUDD.
W. P. Thompson & Boult,
Agents for the Applicant.