An Improved Heating Attachment for Lamp or Gas Burners.
Year: 1891

page_text: Date of Application, 10th Nov., 1891-Accepted, 19th Dec., 1891
COMPLETE SPECIFICATION.
An Improved Heating Attachment for Lamp or Gas Burners.
I JAMES YATE JOHNSON of 47 Lincoln's Inn Fields in the County of Middlesex
Gentleman do hereby declare the nature of this invention which has been com-
municated to me from abroad by Rufus Spaulding Merrill of Boston in the State of
Massachusetts United States of America and in what manner the same.is to
be performed to be particularly described and ascertained in and by the following
statement:-
This invention has for its object to provide a device for utilizing for heating
purposes the heat emitted by lamp or gas burners the device being capable of
being applied if desired while the lamp is burning and without requiring any
alteration in the burner and without interfering with its usefulness as a light
giving agent.
The device according to this invention consists of a broad shallow sheet metal
heating drum or chamber, the bottom of which is unperforated except at the
centre where it has a socket to receive the chimney of the lamp or the like this
socket being provided with holding tines or projections to catch over or rest
upon the top of the chimney. The top of the heating drum or chamber is
pierced at or near its rim or periphery with holes in number and size sufficient
to permit the passage of the heated air with such freedom as not to interfere
with the draught of the burner. The heated air from the chimney strikes against
the unperforated central portion of the top of the heating chamber and is thence
deflected outwardly towards the rim and passes through the perforations in a
divided condition and heating the surrounding air thereby acting as a very efficient
agent to heat small rooms, such for example as sewing rooms or bath rooms.
device is made of suitable light metal and may be made ornamental so as to be
pleasing to the eye; it can be readily fitted to and removed from the chimney of
any burner and requires no alteration in existing burners or chimneys.
The
And in order that the said invention may be fully understood 1 shall now
proceed more particularly to describe the same and for that purpose shall refer
to the several figures on the annexed sheet of drawings the same letters of
reference indicating corresponding parts in all the figures.
Figure 1 is a vertical central section and Figure 2 a plan view of the device
constructed according to this invention as applied to a lamp chimney-the upper
part of which lamp chimney is shewn in Figure 1.
The device is composed of the two shallow dished discs A, B, of sheet metal,
united at their peripheries by a band a which in this instance is formed in one with
the upper sheet metal disc A. In this way a shallow sheet metal drum or chamber
is formed.
The lower disc B is unperforated except at the centre where an opening is
formed in it for the reception of the chimney C this opening being surrounded by
an external sheet metal collar b of sufficient size to receive loosely the top of any
ordinary lamp chimney. Within and fixed to the collar bare springs c consisting
of bent wires capable of being sprung apart to receive the chimney between them,
and to clasp it sufficiently to hold the heating device steady on the chimney. The
springs e are provided at their upper free ends with hooks co the like to catch
over or rest upon the top of the chimney. There may be three or more of these
springs.
The top disc A is unperforated except near its rim or periphery where it is
provided with numerous small slits or holes x and y for the passage of the heated
air from the chimney C.
In order to protect the central portion of the upper disc A from being injuriously

page_text: affected by the excessive heat a thin deflecting shield D as shewn may be inter
posed between it and the chimney it being secured to the top disc A by suitable
supports such as d.
This heating device may be readily applied to the chimney C even while the
lamp is burning if desired.
The heated air and products of combustion from the burner passing up the
chimney strike against the unperforated part of the top disc A or against the
shield D, when employed, and is deflected outwardly to the holes x, y, through
which the heated air passes in a finely divided condition thus heating the sur-
rounding atmosphere. The drum itself also becoming highly heated diffuses its
heat into the apartment.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
As a new article of manufacture the herein described attachment for lamp or gas
burners consisting of a drum or chamber with a central opening in its bottom
to receive the chimney of the lamp or gas burner and provided with clasps or
holders for engaging and holding the drum or chamber in place thereon and with
apertures or openings in its top at or near the periphery or rim of the drum
or chamber to allow free passage of the heated air and products of combustion
from the lamp or gas burner substantially as and for the purposes herein before set
forth.
Dated this 10th dox of
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C., Agents.