Improvements in Stuffing Boxes and Glands and Packing therefor, Applicable also to Bearings.
Year: 1888

page_text: Date of Application, 18th July, 1888
Complete Specification Left, 2nd Jan., 1889
Complete Specification Accepted, 9th Mar., 1889
Accepted, 9t
群
Improvements in Stuffing Boxes and Glands and Packing therefor,
Applicable also to Bearings.
GEORGE MACDONALD "Engineer" 19 Bowling-green Street Leith "N.B." WILLIAM
BROWN "Engineer" 30 Albany Street Leith "N.B." do hereby declare the nature
of this invention to be as follows:-
The invention consists of a conical shaped stuffing-box combined with metallic.
packing, tapered to fit said stuffing-box, and bored out to fit rod or spindle, and parted
in sections to take up wear. This may be used for piston-rods, valve-spindles, or to
act as bearings for Rotary Pumps, Lathe-head spindles Dynamos or any machine
requiring an exactly accurate bearing or bearings. The metallic rings forming the
taper packing may be of any suitable alloy, or malleable metal, to suit the requirements
of the case to which the improved packing may be adapted.
D: 1711 1 of T1. 1000
GEORGE MACDONALD.
WILLIAM BROWN.
Fredk. Walker & Hyde,
Little Moorfields, London, E.C.,
Agents for Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Stuffing Boxes and Glands and Packing therefor,
Applicable also to Bearings.
We, GEORGE MACDONALD, of 19 Bowling-green Street Leith, N.B. Engineer, and
WILLIAM BROWN of 30 Albany Street, Leith, N.B., Engineer 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 our invention is to provide means for effectually maintaining steam,
air, gas, and water tight glands and stuffing boxes, also reducing the friction and
incidental wear and tear thereof, likewise applying the same device or contrivance
to the bearings of rotary engines, pumps, lathes, drying rolls, calenders, and the like,
for the adjustment of the same, and better preservation thereof.
In carrying our Invention into effect, we employ a gland B, Figure 1 in the
accompanying sheet of drawings; bored to fit the sliding piston pump or other rod A,
said gland being tapered externally to correspond to the taper or conical bore of the
stuffing box C. Within said stuffing box C, and surrounding the rod A we place
metallic rings b 61 61 6¹¹¹, which are circumferentially tapered to suit the taper bore
of the stuffing box C, and are divided or parted into segments as, and in the manner
shewn by the detached plan and sectional view of said ring, Figure 2, f and fl
representing said cuts, partings or divisions. In placing these rings within the
stuffing box, preparatory to compressing them by screwing the gland B, down upon
them by means of the studs and nuts e e¹, we arrange the position of each ring
relatively to the preceding and succeeding ring, so that the division or slot in each
does not coincide, and we may employ pins or equivalent means for preventing said
rings from assuming a position during the movement or working of the engine or
macbine to which these are applied, that may cause said divisions or slots to become
co-incident and thereby causing leakage to occur. We also arrange the external
diameters of the several rings 61611 in such a manner that, during the normal
life or duration of the packing, an annular space is left at the base of the stuffing
box C, shewn by c. An oil cup, or lubricator d allows of the admission of a regular
supply of oil or other lubricant to the sliding rod A, thereby securing the perfect
lubrication thereof, and minimising the wear of both rod and packing. In the
application of the device or contrivance according to our invention, the bore of the
rings 661 61 61 being uniform, and freely fitting the circumferential surface of the
rod A, and also being tapered externally so as to correspond with the internal taper
or cone of the stuffing box C, it is evident that any wear caused by the continued'
motion of the rod A may be immediately taken up by compressing the gland B by
means of the studs and nuts e e¹, said action closing the rings and causing them to
again fit around the rod A and within the stuffing box (), thus preserving a steam,
gas, or water tight joint, the annular lubricating space c always admitting of the
perfect lubrication of the working parts.

page_text: We do not confine ourselves to the employment of any particular metal or alloy in
the formation of these rings, nor to any special angle or degree of taper in the
outward conformation thereof, and in certain cases we may form one, two, or any
desired number of divisions or slots therein, as and for the purposes herein before
described. In the application of said device according to our Invention to rotary
engines, pumps, drying rollers, steam or air heated calenders, rag-boilers and the like,
we employ a tapered gland B Figure 2, tapered stuffing box C, and packing rings
arranged in alternate segments 6 61 61 6111, the tube A replacing the rod shewn in the
former example, through which, gas steam, water or air may pass into the interior of
a revolving roll or the like without risk of leakage. A suitable oil cup & communicates
with the annular space c, thus effectually lubricating the working parts. The journal
or bearing of the revolving roll or the like is shewn by f Figure 2.
d
Where necessary, the length of the gland need not exceed that of the oil space c
Figures 1 and 2, thus affording a special advantage in favor of our Invention, in
cases where the stroke of the piston of an engine, and clearances therefor, is limited
in measurement, since the studs or bolts may be proportionally shortened, and the
lineal dimensions of such engine thereby curtailed, relatively to those fitted with
stuffing boxes and glands of ordinary design, as hitherto constructed.
We may apply the foregoing device according to our Invention for the better
preservation of alignment, and reduction of vibration in the bearings of revolving
shafting or spindles, such for instance as the external bearings of turbines, fans,
centrifugal pumps, blowers, dynamo-electric generators and motors, lathe spindles,
arbors of milling and wheel-cutting machines, and, in fact, any similar apparatus in
which any diametrical adjustment of the bearing surface is required to be performed
in such a manner as to be concentric with the revolving parts thereof, without causing
any deviation from the trae alignment of the same. In such applications of the
device or contrivance according to our Invention, we employ the same arrangement
as shewn in the accompanying sheet of drawings, making such structural alterations
as may be necessary to fulfil the conditions of the particular case, without departing
from the principle embodied in our said invention, and herein before described."
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,
First. In a stuffing box and gland, the conical or taper formation thereof, in com-
bination with segmental rings, substantially as and for the purposes herein described,
and shown in the accompanying sheet of drawings.
Second. In an horizontal or a vertical bearing for a revolving shaft or spindle, the
employment and application of, tapered segmental rings, with suitable appliances for
the adjustment thereof to the circumference of said spindle or shaft, substantially as
herein described and set forth.
Third. In a stuffing box and gland, or bearing, as referred to in the preceding
claims, the arrangement of an internal lubricating space, or channel, substantially as
and for the purposes herein described and set forth.
Dated this 30th day of December 1888.
FREDK. WALKER & HYDE,
4, Little Moorfields, London, E.C.,
Agents for the Applicants.