For more information on Kosmos Lamps,
THE WIDTH OF WICK REQUIRED, click here.
on how to install Kosmos wicks and fit chimneys,
an idea of the ligne (''') of your lamp, click
A THICK WICK IN A KOSMOS BURNER, click here.
THE TOP OF THE WICK IS SOMETIMES REQUIRED,
How to Identify Center Draft and Kosmos Lamps,
The Safe Use of
prime period of Kosmos lamp lighting was the
era prior to the wide-spread use of electricity. From 1875
until WW I, lamp manufacturers were in intense competition.
There were few ''standard'' width wicks used as many
manufacturers employed wicks of proprietary width and
thickness as an advertising advantage for their lamps. I make
customs wicks of the proper width and thickness for some of
the more popular Kosmos, Matador and Agni lamps still
encountered and in use today.
Click here > for custom wicks.
Kosmos wicks go in round and come out flat.
Because most Kosmos burners use gear wheels to move the wick
vertically, the wicks must be of a harder, denser weave than
common flat wicks made for cheap hardware store lamps - and
that means they are more expensive to make.
The upside down burner on the right side shows the gear wheels
that move the wick vertically. Click on the photo at right
to enlarge it.
When a listing below is for ''1 or 2 feet of
wick'' the length of wick you will receive is for how many units
you purchase, ie, an order for 4 feet and you would receive one
four feet length of wick uncut. You can then cut the length
of wick you want.
1 1/4'' x 12''
- (32mm) Kosmos weave,
Den Haan Gimbaled Berth Oil Lamp wick, 1 foot
1 3/8" x 8"
P&A Victor, Boudoir (#138)
1 7/16'' x 8''-
(38mm) Kosmos weave, 8'' of wick
1 5/8" x 8"
, 8" long
1 7/8" x 8"
odd size for when 10''' is not wide enough and 12''' wicks are too
wide. Fits Danforth's
Mariner, Onion, Lodge, Cornwall and Limited Edition pewter oil
2 1/8" x 8"
2 1/2'' x 8'' (63.5 mm), 0.075''
thick, for Gaudard Kosmos 14'''
burners. Custom wick cut from the proper wick material. #215
2 9/16" x 8"
for Some #14 & #15
Kosmos "14 line"' Thicker wick
0.110" - Special
For Kosmos lamps with a larger wick gap. Per wick.
2 3/4" x 8" for
Some 14''' & 15''' Kosmos:
(2 13/16", 72mm) Kosmos wick. P&A Harvard lamps,
some H. G. MOEHRING flat wick lamps
Sebastianbrenner with 50mm diameter straight
tube chimney. If your Kosmos 2 9/16" wick has a gap at the top
when installed, this is the wick to use. Medium thickness of
0.086". Per wick. #275
20_line''' flat wick:
3 5/8" x 8" (92mm),, thicker
wick - 0.086" for Imperial Kosmos Vulcan
burners; Brenner Ideal #20i Burner/ Trawler Lamp; German 20'''
Baldur Brenner; 20''' Schwintzer & Gräff. (See photos of a large
sad iron heaters requiring 3 9/16 to 3 5/8" wide wicks.
Installation instructions >
SAD IRON STOVE WICKS Per
3 5/8" x 8" (92mm),
20''' flat wick, 24" of wicking (cut to your own length)
Thickness 0.076". THIN
WICK FOR SOME LAMPS & STOVES
30_line''' flat wick:
4" x 8"
(101.6mm), for some Kosmos-Brenner burners.
Ideal for sad irons requiring 4"
wicks and European stoves like the
Stove & Canadian SMP or
GSW "Hot Blast" heater.
Thicker 0.092" thickness. Thinner wick for
narrow wick gaps is below.
4" wide, 24" long.
( 3 wick measure -
24" of wicking)
0.076" thickness. THIN WICK FOR SOME LAMPS & STOVES
8''' & 10''' Kosmos
Kosmos lamps have been made by literally hundreds of different
manufacturers in the past
150 years. Any ''standards'' are hypothetical. 8'''
Kosmos chimneys are a nominal 1.50'' OD slip-fit. The
largest base diameter 10''' Kosmos chimney I have is an original
signed W&W that measures 1.57'' base diameter. 7/100th is
extremely close for a minimum/maximum spread. Quite common
prior to WW II was a Kosmos chimney with 1.53'' base diameter
designed to fit either 8''' or 10''' Kosmos lamps. Virtually any
Kosmos chimney from 1.500'' to 1.57'' base diameter will fit over
the burner cone and within the base of the chimney fingers.
The brass chimney fingers can then be adjusted to fit the chimney.
The precise measurement of the base diameter of the chimneys I
have in stock can be found by
clicking here for
a pdf copy of the measurements, and
clicking here for a VERY extensive list of chimney base
diameters. Only my custom chimneys have absolute
guaranteed measurements; the standard, mass-produced chimneys
do have some variations in dimensions.
in flat, comes out round"... by a process of 'conical curling' ...
shows the triangular air port allowing air to centre of flame. Also
shows direct gear drive to the wick.] Photo by Alex Marrack
Sizes of Kosmos Lamps
The wick in Kosmos lamps
is flat and curled round by the gearing (shown above). The
wick must fit inside the circumference of the outer wick tube.
Kosmos wicks are sold by their width, but determining that
width when there is no fragment of a wick left to measure can
be challenging. Measuring the diameter and referring to
the chart below is one relatively easy way to select the
proper fitting wick.
I have listed below the inside
diameter of the top of the outside wick tube for various Kosmos lamps I
own, shown below the line number and width in inches. Please note
there were hundreds of manufacturers, so dimensions may well vary, in
some cases vary considerably.
Kosmos Lamps, Rough measurements
(Made since 1865 by
literally hundreds of manufacturers in different countries,
dimensions can easily vary.)
||Outer wick tube OD (approx)
||Chimney base outside diameter (approximate)
||2.0" to 2.10"
||2 3/4" some
||2.0" to 2.10"
2 3/4" some
REQUIRED THE EASY WAY
If there is
already a wick in your Kosmos lamp, it is very easy to know
what width wick you need for a replacement. Near right:
raise the wick to make sure there is no gap or the wick is too
wide and jams when raised. The one in the photo at right
is just fine. Far right: measure the width of the
existing wick, in this case it is 2 9/16'', a 14''' wick.
And as it is a Gaudard burner and the wick can be felt, it is
a thin wick.
IF THERE IS NO WICK TO MEASURE
first thing to do is
clean the burner,
polish, then straighten any bends or dents in the wick
tubes, the outer wick tube often having dents and will inhibit
any wick from fitting into the wick gap. And of course a
dirty burner is an abomination and prohibits a wick from
moving. Jewelry pliers with round, tapered noses are
ideal for straightening the wick tubes. Click on photos
to enlarge them.
photo right shows a burner cleaned with
hot citric acid,
polished with a brush and Q-Tips, with dents removed that
still had roughness in the wick gap that would stop a wick
from rising; folded 120 grit emery paper solved the problem.
3. Wrap a piece
of stiff card stock, such as an index card or post card,
around the draft tubes, cut to rough length, then carefully
insert it into the wick gap so that it overlaps one end.
Mark the overlap. Remove the cardboard and measure the
width. Hallelujah, confirmation! It measured 2 9/16'' wide!
My photography needs serious help and the perspective of the
lens is not correct, but the measurement is just fine.
MEASURING TO FIND THE PROPER
Much more detailed information -
It is not
difficult to measure the slip-fit width to know
which chimney to order. Expensive calipers
are not required. At left you will see a
child's pencil compass used to measure between the
base of two opposing chimney fingers. The
compass is then laid on a rule and the width is
known. In this case I was measuring a New
Juno #1 and the base diameter is slightly over 2".
A chimney should NEVER push against the base of
the chimney fingers, so in this case a 2" slip-fit
chimney is proper. Click on the photos to enlarge
them. If you do not have calipers or
dividers, measure the circumference of an existing
chimney or inside the chimney fingers and divide
by 3.14 to get the fitter diameter required. These
are crude measurements, of course. To know the
ACTUAL diameter of Kosmos chimneys in stock for
THICK WICK IN A KOSMOS BURNER
Feeding a thick wick from the
bottom of a 20''' Matador burner can be a challenge. Making a
tape extension as shown at right makes the process much easier.
The tape is pushed up through the wick gap, then the wick gently
pulled up through the gearing. Flexing the wick prior to
installation and leaving it with a gentle curl will help with wick
installation in all Kosmos burners.
THE TOP OF THE WICK IS SOMETIMES REQUIRED
Many Kosmos lamps are well over a
century old and the gearing mechanism can be worn, resulting in
the wick rising unevenly. To correct that the top 1/2'' of
the wick can be sewn together as shown below.
The photo at left shows the
well-worn Gladiator burner could not raise the wick uniformly.
The top 1/2'' was sewn as shown, then the wick was trimmed and
burned level to achieve a smooth, even top surface. Because the
inner draft tube is tapered, the wick can be sewn together no lower
than 1/2'' from the top of the wick.
Lamp Collector’s Resource Library in SEARCHABLE Adobe
Center Draft Wicks
available only from this Wick Shop.
Flat lamp wicks:
Aladdin Lamp Wicks, parts & pieces, Aladdin
history, exploded burner views - every model
Kosmos Lamp Wicks history, photos & information.
for stoves and heaters, 3/4'' to 1 1/2'', 5 1/2
Now many more chimneys!
Pixie to Kosmos, Duplex, center draft lamps up to store lamps and Angle lamp chimneys.
Premium Custom made
Center Draft Lamp
in borosilicate glass
from Junior "Tiny" to Mammoth lamps.
neoVulcan Matador -
Globe Vulcan (Central Vulcan) Chimneys -
CHIMNEYS AND WICKS
Fabulous "Sans Rival"
borosilicate chimney for 14''' Kosmos lamps
Student Lamp Sans Rival Chimney with
1 7/8" fitter!!!
Sonnenbrenner Lamp Chimneys
- Dimension of
nominal base diameter by make, model and "line".
Information on lamps:
Aladdin Lamp History
Aladdin Lamp Wicks & Chimneys,
Aladdin - Exploded burner views
Lamp Repair & projects
Center Draft Kerosene Lamps
(Photos, information and history, etc)
Lamp manufacturers and brand names
Miller Lamps - a photo album
restored center draft lamps
USE, CARE and WICKING of CENTER DRAFT LAMPS
Early American Metal Font & Specialty Lamps
Flame Spreaders and
- Vulcan, Imperial, Veritas,
Belgian, Hinks, Messenger's, Young's Court, etc.
Articles by Alex Marrack:
Registered Design Numbers For British Lamps
GERMAN PATENT LETTER CLUES - DRPs AND DRGMs, 1877 to 1945
Site Index for all things Perfection
Links to web sites for parts,
information and restoration.