Improvements in Holders or Supports for the Mantles of Incandescing Gas Burners.
Year: 1897

page_text: Date of Application, 19th Jan., 1897-Accepted, 20th Mar., 1897
COMPLETE SPECIFICATION.
Improvements in Holders or Supports for the Mantles of
Incandescing Gas Burners.
We, ARTUR DUFFEK, Engineer and JOHANN KOHN, Manufacturer, both of
Vienna, in the Empire of Austria, 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 devices hitherto employed for supporting the well known incandescing mantles
of gas burners have two serious objections.
Firstly they enable the consumer, who has had his first installation made by an
authorized firm, to buy further supplies of incandescing mantles from another firm,
or he may be supplied by unauthorized persons or firms with mantles of lower quality
without his knowledge.
Secondly, the ordinary support, the so called crutch, of incandescing mantles is
not adapted to enable the latter to be adjusted according to the variations in the gas
pressure, which when attempted at all mostly causes the destruction of the mantle.
In no case has it been possible to obtain a proper adjustment.
The improvements according to the present invention enable the above disadvantages
to be obviated by making the crutch or support not as heretofore in a single part,
but of two separate parts having their connecting ends of such a shape as to only
allow of using the corresponding lower and upper parts together in each case; such
upper part carrying the mantle.
Moreover the lower part of the crutch or support (or the crutch or support itself)
is provided with means for readily adjusting the position of the mantle and thus
enabling the latter to be placed in such position relatively to the flame as to obtain
the maximum of light in each case.
Our invention is illustrated in the accompanying drawings which represent several
forms of adjustable crutches or supports constructed according to our invention.
Fig. 1 shows an adjustable crutch or support in which the upper part a carrying
the mantle is provided at its lower end with a flat part a' adapted to fit into the
socket at the upper end of the lower rod which latter has rack teeth formed on
one edge thereof. The flat end a¹ of the part a is fixed in the socket 1 by a set
screw
In gear with the rack is a pinion e the spindle c¹ of which is provided with a
knob and is carried by the burner or by the mantle fittings in such manner as to
enable the pinion to raise or lower the crutch or support a, b, and thereby enable a
proper adjustment of the mantle to be effected.
Fig. 2 represents a modification in which the socket b' is arranged horizontally on
the toothed rack while the flat end a' of the upper part a is bent to suit and is
fixed by the set screw 2. This arrangement enables the mantle to be adjusted both
horizontally at a band vertically by means of the pinion e as before described.
Fig. 3 represents another modification in which the socket is fixed at the si...
of the rack and a suitable bearing is at the same time provided for the spindle c
of the pinion e.
In the modification shown at Fig. 4 the crutch or support consists of a vertically
adjustable rack 6 having at its upper end the horizontal socket with set screw i
adapted to receive the flat end a of the horizontal rod or arm a carrying the mantle.

page_text: In the modification shown at Fig. 5 an ordinary wire, forming the upper part a
of the crutch or support, is fixed in a tube & forming the lower part thereof and the
screw serves as in the other described modification to retain the part a in position.
The tube is provided with suitable cuts or holes into which pass the teeth of the
pinion c for adjusting the height of the mantle. It will be seen that the object
in view in each case is to enable the mantle to be adjusted while the crutch or
support may be arranged to suit circumstances.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. The device for holding the mantles of incandescing gas burners, by which only
mantles of the same kind and of the same manufacture as the original mantle can be
used, such device being characterized by a crutch or support made in two separate
parts a and the adjoining ends of which are of corresponding shape and size
substantially as herein shown and described.
2. The combination with a mantle holding device of the character hereinbefore
described, of means for adjusting the position of the mantle according to the gas
pressure and consisting of the part of the crutch or support being made in the
form of a toothed rack or a tube provided with suitable holes to gear with a pinion
whereby the crutch or support can be vertically adjusted substantially as herein shown
and described.
G
3. The improved holding and adjusting devices for incandescing mantles of gas
burners, substantially as herein shown and described.
Dal L 14th 1047
HARRIS & MILLS,
23 Southampton Buildings, London, W.C., Agents.
HARRIS & MILLS,
23 Southampton Buildings, London, W.C., Agents.