IMPROVEMENTS IN Journals AND THEIR BEARINGS
Year: 1881

page_text: LETTERS PATENT to John Imray, of No. 28, Southampton Buildings, in the
County of Middlesex, for an Invention of "IMPROVEMENTS IN Journals
AND THEIR BEARINGS." A communication from abroad by William Richard
Jones, of Braddocks, Allegheny County, Pennsylvania, in the United States
of America.
PROVISIONAL SPECIFICATION left by the said John Imray at the Office
of the Commissioners of Patents on the 2nd March 1881.
JOHN IMRAY, of No. 28, Southampton Buildings, in the County of Middlesex.
"IMPROVEMENTS IN JOURNALS AND THEIR BEARINGS." [A communication from
abroad by William Richard Jones, of Braddocks, Allegheny County, Pennsylvania,
in the United States of America.].
This Invention relates to means of cooling and lubricating the bearings and
journals of rolls and other revolving shafts, and of relieving their frictional
pressure. For this purpose the lower block of the bearing is made with a recess or
hollow in the form of a T, the middle limb of which extends nearly the whole
length of the bearing, and the transverse limb extends over a considerable arc of
the semicircumference. This recess communicates by a passage, which may be
formed by a bent pipe cast in the block, with a pipe at a higher level supplied with
water or with oil or other lubricating liquid, which flowing into the T shaped
recess spreads over the surface of the revolving journal. The liquid may be
supplied under pressure, which acting on the underṣurface of the journal relieves
the bearing from frictional load to an extent depending on the pressure at which
the water or lubricating liquid is supplied. Both journals of a roll and the roll
itself may be cooled by a supply of liquid to one of the bearings in the following
manner: A longitudinal hole is bored along the axis of the roll and its journals;
this hole is closed by plugs at both ends, the plug at the end farthest from the
cooled bearing having a small central hole through it. Several radial holes are bored

page_text: from the surface of the cooled journal to the central bore, these holes being in such
a position that as the journal revolves they communicate successively with the
wide part of the recess in the bearing. The liquid supplied to the recess passes by
these holes into the central bore, and flowing along it escapes by the hole at the
opposite end, thus cooling the roll and both its journals. For ordinary shafts the
recess in the lower block of the bearing may be simply a groove extending nearly
the whole length of the bearing and communicating at each end with a pipe, the
one for supply of water or lubricating liquid, and the other for its discharge, so that
a constant flow of cooling liquid can be maintained along the groove, the liquid
when desired being supplied under pressure to relieve the frictional load on the
bearing.

page_text: "
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Imray in the Great Seal Patent Office on the 1st
September 1881.
_JOHN IMRAY, of No. 28, Southampton Buildings, in the County of Middlesex.
IMPROVEMENTS IN JOURNALS AND THEIR BEARINGS." A communication from
abroad by William Richard Jones, of Braddocks, Alleghenny County, Pennsylvania,
in the United States of America.
This Invention relates to means of cooling and lubricating the bearings and
journals of rolls and other revolving shafts and of relieving their frictional
pressure. For this purpose the lower block of the bearing is made with a recess or
hollow in the form of a T, the middle limb of which extends nearly the whole.
length of the bearing, and the transverse limb extends over a considerable are of
the semicircumference. This recess communicates by a passage, which may be
formed by a bent pipe cast in the block, with a pipe at a higher level supplied with
water or with oil or other lubricating liquid, which flowing into the T shaped
recess spreads over the surface of the revolving journal. The liquid may be
supplied under pressure, which acting on the under surface of the journal relieves
the bearing from frictional load to an extent depending on the pressure at which
the water or lubricating liquid is supplied. Both journals of a roll and the roll
itself may be cooled by a supply of liquid to one of the bearings in the following
manner: A longitudinal hole is bored along the axis of the roll and its journals;
this hole is closed by plugs at both ends, the plug at the end farthest from the
cooled bearing having a small central hole through it. Several radial holes are bored
from the surface of the cooled journal to the central bore, these holes being in such
a position that as the journal revolves they .communicate successively with the
wide part of the recess in the bearing. The liquid supplied to the recess passes by
these holes into the central bore, and flowing along it escapes by the hole at the
opposite end, thus cooling the roll and both its journals. For ordinary shafts the
recess in the lower block of the bearing may be simply a groove extending nearly
the whole length of the bearing and communicating at each end with a pipe, the
one for supply of water or lubricating liquid and the other for its discharge, so that
a constant flow of cooling liquid can be maintained along the groove, the liquid
when desired being supplied under pressure to relieve the frictional load on the
bearing.
DESCRIPTION OF THE DRAWINGS.
Fig. 1 is an end view of the lower brass of a bearing such as is employed for the
journals of rolls, shewn without its soft metal lining; Fig. 2 is a plan of the brass
and Fig. 3 is a transverse section thereof with its lining; Fig. 4 is a part longitudinal
section of a roll with its journals and lower bearing brasses, and Fig 5 is a
transverse section through its journal. The block A is cast as usual with ribs a to
hold in the lining; it has also cast on its lower side a T shaped projecting rib b
having a recess c of corresponding shape, this recess extending lengthwise nearly
the whole length of the bearing, and at one end spreading out each way over
a considerable arc of the lower surface of the bearing. In casting the block A a
pipe & opening into the recess c is cast in it, and this pipe is connected with a
supply of water or liquid lubricant with a suitable cock or valve for regulating
the quantity supplied. The roll B has a central passage f plugged up at the
ends but with a small hole about the area of the pipe d through the plug farthest
from the bearing which d supplies. Several radial holes i are drilled through the
journal so as to make communication from the wide part of the recess c to the

page_text: interior hollow f. As the roll revolves water supplied under pressure by the pipe d
spreads along the recess c lubricating the bearing, and finding its way by the holes i
into the interior of the roll and out at the other end it keeps the roll as well as the
journal cool. When the water is supplied by the pipe d under considerable
pressure, the fluid pressure acting on the under surface of the journal relieves the
load on the bearing, thereby diminishing friction and wear. Fig. 6 is a longitudinal
section of the bearing for a shaft journal. In this case there are two pipes p
and q connected to holes m and n which communicate by a recess c sunk in the
lower bearing. Oil or other liquid lubricant being forced by a pump or otherwise
through one of the pipes, such as p, flows along the recess c lubricating and
sustaining the journal, and the overflow returns by the pipe q to the oil reservoir
whence it can be pumped again.
Having thus described the nature of the said Invention, and in what manner
the same is to be performed, as communicated to me by my foreign correspondent,
I claim,
First. The herein described method of cooling and lubricating a journal, reducing
its friction, and relieving its pressure on its bearing by supplying liquid under
pressure to a recess formed in the bearing.
Second. The herein described method of cooling a roll and its journals by causing
liquid supplied to a recess in its bearing to pass by lateral holes in the journal into
and through a cavity in the roll.
Third. The construction of bearing having a recess and pipe for supply of water
or liquid lubricant, substantially as herein described.
Fourth. The combination of a recessed bearing, such as is referred to in the
preceding claim, with a roll having a central cavity communicating by radial
holes in the journal with the recess of the bearing, substantially as herein
described.
In witness whereof, I, the said John Imray, have hereunto set my hand
and seal, this Tenth day of August, in the year of our Lord One thousand
eight hundred and eighty one.