Improvements in Chimneys for Incandescent Gas or other Burners.
Year: 1899

page_text: Date of Application, 18th Aug., 1899-Accepted, 14th Oct., 1899
COMPLETE SPECIFICATION.
Improvements in Chimneys for Incandescent Gas or other Burners.
I, FREDERICK ROBINSON HUSE, of 84, North Street, Boston, U.S.A., Gentle-
man, 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:-
This invention relates to an improved chimney for incandescent or other gas
burners and it has for its object to improve the construction of the mica
chimneys which as at present constructed are liable to become damaged in taking
off or putting same on the burner. Now according to my improvements I con-
struct the lower metal ring upon the chimney of a much greater depth than
ordinarily employed and provide it upon its upper inner surface with a series
of clips stamped or otherwise formed integral with the ring, the clips being of
such a shape that they serve the double purpose of firmly securing the mica
and also form a means for securely attaching the longitudinal metal strip or
strips employed for securing the plates of mica composing the chimney, (where
a number of such plates are employed) one to the other. And in order that
the invention may be the better understood drawings are appended :-
Fig. 1, being a general elevational view of the chimney.
Fig. 2, an enlarged plan of the lower ring.
Fig. 3, a sectional view showing the arrangement and form of the clips for
securing the band to the mica.
Fig. 4, is a detail view showing the method of attaching the longitudinal
metal strips to the band.
:
Fig. 5, is also a view illustrating the same. a is the body of the chimney to
which is attached the metal ring the upper edge of which is provided with a
series of semicircular pieces c. The ring at its upper end is turned over inwards
as shown in Figs. 3, 4 & 5 and the pieces c aforesaid are then turned back upon
the ring enclosing the mica between them and the inner surface of the said ring
as shown in Fig. 3. Referring to Figs. 3, 4 & 5 it will be seen that the clips
are semicircular at their ends, the form thereof is however optional, and that
they are provided with a concentric semicircular hole d through which the
extended ends of the longitudinal strips e of metal serving to secure the ends
of the sheet or sheets of which the chimney is composed one to the other, are
passed and when turned back as shown in Figs. 4 & 5 effectually prevent the
mica being pulled therefrom when the chimney is being pulled off the burner.
An additional advantage is obtained by the employment of a ring of greater
depth than usual in that the clip upon the burner has a greater hold upon the
chimney thereby assisting to hold the said chimney in a proper, vertical position.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:-
The improvements in chimneys for incandescent gas and other burners sub-

page_text: stantially as in the foregoing specification illustrated by the appended
drawings.
1000
J. E. EVANS-JACKSON & Co.,
Agents for the. Applicant.