Improvements in Packings.
Year: 1894

page_text: Date of Application, 26th Oct., 1894
Complete Specification Left, 19th July, 1895-Accepted, 21st Sept., 1895
PROVISIONAL SPECIFICATION.
Improvements in Packings.
We, JULES PROSPER GAUTHIER, NESTOR HENRIOT, and ANTOINE
JOURDANET, all of Rue Corne-de-Cerf, Lyons, in the Republic of France,
Manufacturers, do hereby declare the nature of this invention to be as follows:-
--
This invention relates to an improved steam or other packing and consists of a
covering of asbestos or other material placed over a band of caoutchouc or any
other elastic material, serving to impart to the whole more or less elasticity, the
band so formed being covered with a metallic envelope of anti-friction metal by
any suitable means, thus obtaining a hoop or ring. In order to facilitate its use, it
is split across. The band may also be made in one continuous length so that it can
he wound up in rings or spirals. The part which is in contact with the rod or
other surface, being the one subject to wear, we strengthen such part either inside
or outside the metallic envelope. The packing may be made of any shape or
dimensions.
Dated this 26th day of October 1894.
HERBERT HADDAN & Co.,
Agents for the Applicants.
Improvements in Packings.
We, JULES PROSPER GAUTHIER, NESTOR HENRIOT, and ANTOINE
JOURDANET, of the Firm of Gauthier & Cie., 10 Rue Corne-de-Cerf, Lyons, in
the Republic of France, Manufacturers, do hereby declare the nature of the said
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 metallo-elastic packing applicable for the
piston-rods of steam engines, and stamp-hammers, for pump rods, for the shafts of
drying and dressing cylinders, for sluice-rods, or in short for all apparatus
necessitating the use of a packing or stuffing.
This packing is shown in the annexed drawing and consists (see Fig. 1) of a
covering of asbestos or other material placed over or around a band of
caoutchouc or any other elastic material, serving to impart to the whole more or
less elasticity, the band so forined being covered with or enclosed in a metallic
envelope of anti-friction metal thus constituting a hoop or ring as shown in
Fig. 2.
In order to facilitate its use it may be split across obliquely as shown in Fig. 3.
Such band may also be made in one continuous length as shown in Fig. 4 so that it
can be wound up in rings or spirals.
The part which is in contact with the rod or other surface being the part subject
to wear is strengthened or faced, either inside or outside the metallic envelope,
with the same kind of metal, as in Figs. 5 and 6.

page_text: Fig. 7 shows the packing forced down in the stuffing-box. The packing thus
prepared presents the following advantages:
1. Security, owing to the use of metallic rings.
2. Great durability since the anti-friction-metal becomes worn but very slowly.
3. Prevention of the wear of the rod, since the latter being continuously in
contact with the anti-friction-metal suffers little appreciable wear and tear and
does not become scored or grooved.
4. Considerable economy in power owing to the softness of friction, to its
durability and to abrupt stoppages and wear of the rods being obviated.
This packing is essentially characterised by the combination of a soft elastic
and plastic substance enclosed in an envelope of anti-friction-metal for this three-
fold purpose:
1. To separate the rod or axle to be packed, from the contact with the readily
destructible elastic material forming the core of the packing.
2. To prevent, owing to the nature itself of the metal, any wear originating
from the friction of the rod or axle as the case may be.
3. To enforce owing to the elasticity of the core, a constant contact of the anti-
friction metal with the rod whilst always preserving for the latter.a soft friction,
which does not neutralize, as is the case with most packings, the active work of the
power which causes the movement.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is ;-
1. An improved packing consisting of a band of caoutchouc or other elastic
material, covered by asbestos or other plastic material and the whole surrounded by
or enclosed in an envelope of anti-friction metal.
2. The packing or mounting as above described with its metallic envelope
reinforced or strengthened either inside or outside where it is subject to friction as
described.
Dated this 19th dow of July 100%
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, W.C., London, Agents to Applicants.