Improvements in Packing for Flange Joints and the like.
Year: 1890

page_text: Date of Application, 15th Oct., 1690
Complete Specification Left. 15th July, 1891-Accepted, 5th Sept., 1891
PROVISIONAL SPECIFICATION.
Improvements in Packing for Flange Joints and the like.
I, CARL FROMM of Augustenstrasse No. 82, Stuttgart, in the Empire of
Germany, Manufacturer, do hereby declare the nature of this invention to be as
follows
This invention has for its purpose to protect the materials, hitherto used for
packing flange joints and the like against steam-, water-, or air-pressure, for
instance indiarubber, asbestos, hemp, from being blown out and at the same time
to make provision, that the packing materials be in such direct contact with the
surfaces to be packed as to cause the packing to be effected, not by the pressing-in
of a soft metal or wire bunch ring against the flanges, but by direct pressing of
soft packing material onto the flanges.
To accomplish the said purposes, I place between the flange joints to be packed
a ring of soft metal or of wire netting, which has an S shaped or undulated cross
section, the cavities intervening with such shapes of cross section being filled out
with rings of soft packing material. On the flanges being pressed together, these
intermediate rings are pressed with one of their surfaces direct against the one or
other surface of the flanges, whereby a perfect and secure packing is attained, while
the vertical or downward portions of the thin metal ring protect the intermediate
pieces from being blown out.
Dated this 15th day of October 1890.
HUELSER & Co.,
Agents for Applicant.
COMPLETE SPECIFICATION.
Improvements in Packing for Flange Joints and the like.
I, CARL FROMM of Augustenstrasse No. 82, Stuttgart, in the Empire of
Germany, Manufacturer, 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 to protect the materials hitherto used for packing
flanges against steam- water-, or air-pressure, for instance indiarubber, asbestos,
hemp, from being blown out, and at the same time to make provision, that the
packing materials are in such direct contact with the surfaces to be packed as to
cause the packing to be effected, not by the pressing-in of a soft metal or wire
bunch ring against the flanges, but by direct pressing of soft packing material onto
the flanges.
To accomplish the said purpose, I place between the flanges to be packed a ring
of soft metal with one or more concentric washers of asbestos or any other suitable
material on either or both sides.
Referring to the accompanying drawing, Figs. 1 to 6 illustrate the improve-
ment.
On the flanges A' A' being pressed together, the concentric washers e¹³ ³ are
pressed with one of their surfaces direct against the one or other surface of the
Hanges AA, whereby a perfect and secure packing is attained, while the down-
ward portions of the metal ring prevent the said intermediate rings or
washers from being blown out.
The number of washers employed depends in each particular case on the degree
of pressure to be considered. The drawing shows a metal ring with two and three
washers.

page_text: The improved packing has the advantage that also uneven or unfinished flanges
can be easily packed herewith and that a breaking of the flanges is prevented,
which frequently occurs with wire bunches and metal rings when the packing is
effected by the soft metal itself.
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 :-
A packing for flanges or joints consisting of a soft metal ring in combination
with a suitable number of concentric washers of asbestos or any other suitable
material substantially as illustrated and described.
Dated this with day of Ld. 1001
CARL
FROMM.
By Huelser & Co.,
His Agents.