Improvements in and relating to Glands for Stuffing-boxes.
Year: 1891

page_text: Date of Application, 14th Apr., 1891
Complete Specification Left, 14th Jan., 1892-Accepted, 20th Feb., 1892
PROVISIONAL SPECIFICATION.
Improvements in and relating to Glands for Stuffing-boxes.
1, FERDINAND BAUER, of VII, Zieglergasse 67, Vienna, in the Empire of
Austria, Manufacturer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to glands for the stuffing-boxes of steam and other engines.
The glands in use at the present time have the disadvantage that, if the
tightening nuts happen to be unevenly screwed up, a lateral strain is put on the
gland and the rod or plunger working within it, so that wear takes place unequally;
the final result being unsteady working and leakage.
According to this invention, the above-mentioned disadvantage is obviated by
forming the gland in two separate parts-the inner part or gland proper and the
outer part or flange. The latter is mounted on the gland proper and is provided
with openings through which the piston-rod or plunger and the tightening bolts
pass.
When three or more tightering bolts are used, there is, in the centre of the
Hange or outer part, a rounded annulus which fits in a corresponding seat in the
inner part. If, however, only two tightening bolts be employed, there are. instead
of the annulus, V-shaped ridges arranged crosswise in line with one another between
the bolts. The annulus or ridges prevents or prevent any lateral strain being
communicated from the flange to the gland proper or to the piston-rod or plunger.
In the accompanying drawings,
Fig. is a plan shewing the application of my invention where only two
tightening bolts are employed; Fig. 2 being a corresponding end view.
Figs. 3 and 4 are similar views illustrating the application of my invention where
three tightening bolts are used.
The inner part a or gland proper is placed next the packing. The outer part b
or flange has holes (e and d d in Fig. 1) through which the pi. ton-rod and the
tightening bolts pass; sufficient play being allowed.
h
If two tightening bolts only be used, as in Figs. 1 and 2, the ribs h, projecting
from the flange at right angles to the plane in which the bolts are situated and
always bearing diametrically on the inner part a, cause pressure to be applied with
uniformity on the part a, on the packing and on the piston-rod. If the nuts be
screwed down unequally, the holes and d d are sufficiently large to allow the
Hange to take an inclined position without any lateral pressure being communicated
to the part a.
If three tightening bolts be employed, as in Figs. 3 and 4, or if there be more
than three tightening bolts, a rounded annulus is used instead of the ribs h h.
This annulus projects from the flange 6 and works in a corresponding seat in the
part a; the annulus and its seat this constituting a form of ball-and-socket joint.
This construction permits the flange to assume a position inclined, when the nuts
are screwed up unevenly, towards the particular nut which happens to be screwed
up more than the others; no lateral stress resulting.
Dated this 14th day of April 1891.
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C., Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in and relating to Glands for Stuffing-boxes.
I, FERDINAND BAUER, of 67, Zieglergasse, Vienna, in the Empire of Austria,
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 :-
This invention relates to glands for the stuffing-boxes of steam and other engines.
The glands in use at the present time have the disadvantge that, if the tightening
nuts happen to be unevenly screwed up, a lateral strain is put on the gland and the
rod or plunger working within it, so that the wear takes place unequally; the final
result being unsteady working and leakage.
According to this invention, the above-mentioned disadvantage is obviated by
forming the gland in two separate parts--the inner part or gland proper, and the
outer part or flange. The latter is mounted on the gland proper, and is provided
with openings through which the piston-rod or plunger and the tightening bolts
pass. When three or more tightening bolts are used, there is, in the centre of the
Hange or outer part, a rounded annulus which fits in a corresponding seat in the
inner part.
If, however, only two tightening bolts be employed, there are, instead
of the annulus, V-shaped ridges arranged crosswise in line with one another between
the bolts. The annulus or ridges prevents or prevent any Interal strain being
communicated from the flange to the gland proper or to the piston-rod or plunger.
Referring to the drawings accompanying my Provisional Specification,
Fig. is a plan shewing the application of my invention where only two
tightening bolts are employed; Fig. 2 being a corresponding end view.
Figs. 3 and 4 are similar views illustrating the application of my invention where
three tightening bolts are used.
The inner part a or gland proper is placed next the packing. The outer part b
or flange has holes (c and d d in Fig. 1) through which the piston-rod ƒ and the
tightening bolts y pass; sufficient play being allowed.
If two tightening bolts only be used, as in the construction illustrated by Figs. 1
and 2, the ribs, projecting from the back of the flange in a plane at right
angles to that in which the bolts are situated and always bearing diametrically on
the inner part a, cause pressure to be applied with uniformity on the part a, on the
packing and on the piston-rod. If the nuts be screwed down unequally, the holes c
and d d are sufficiently large to allow the flange 6 to take an inclined position
without any lateral pressure being communicated to the part a.
If three tightening bolts be employed, as in the construction illustrated by
Figs. 3 and 4, or if there be more than three tightening bolts, a rounded annulus
is used instead of the ribs h. This annulus projects from the back of the flange b
and works in a corresponding seat in the part a; the annulus and its seat thus
constituting a form of ball-and-socket joint. This mode of construction permits
the flange, when the nuts are screwed up unevenly, to assume a position inclined
towards the particular nut which happens to be screwed up more than the others,
but no lateral stress is communicated to the part a.
Having now particularly described and ascertained the nature of this inven
tion and in what manner the same is to be performed, I claim :-
The improved method of constructing glands for stuffing-boxes substantially as
h. rein described, and whereby, in the event of the gland-fastening, being tightened
unequally, the gland is preserved from canting and the rod from Interal stress.
Dated this 12th day of January 1892.
G. G. M. HARDINGHAM,
191, Fleet Street, London, E.C., Chartered Patent Agent.