Appliances for Reducing the Temperature of Hot Rolls and Bearings without Risk.
Year: 1899

page_text: Date of Application, 17th Mar., 1899
Complete Specification Left, 18th Dec., 1899-Accepted, 17th Feb.,
1900
PROVISIONAL SPECIFICATION.
Appliances for Reducing the Temperature of Hot Rolls and Bearings
without Risk.
EDWARD LONES, Bucklands, Lydney, Works Manager, JOB LEWIS, Churchfield,
Lydney, Roll Turner, JOHN HUNT LONES, Victoria Road, Lydney, Roll Turner,
all of Gloucester, do hereby declare the nature of this invention to be as
follows:-
The object of our invention is to reduce the temperature of hot rolls and
bearings used in black plate and sheet iron mills, without risk of breakages, due
largely to sudden and irregular fluctuations of temperature,
To carry out the above we propose to cast, or otherwise place in the top
carriages a pipe running horizontally round the screw bearing, and at a safe
distance above brass seating.
The above pipes may be of any desired shape and size, and the two ends
always project outside carriage for attachment.
A similar pipe or coil of piping is to be cast in housing of rolls, also running
horizontally and at a sufficient distance underneath and about the bottom brass
seating, and having its two ends projecting from either the inside or outside
of housing as may be deemed most expedient. The connection between the
outflow pipe end of top carriage and inflow pipe end of housing, will be movable
to allow for spring of rolls when working; also the same applies to feed pipe
connected with inflow at top. We propose to work the above system of pipes
by circulating water through them and heating the same by conduction in its
passage, which will act more slowly and safely than in passing water through
brasses in direct contact with roll bearings, owing to the fact that in our method
the heat must be conducted through a much greater distance, hence there is
no chilled surface near the roll or bearings, besides which, we claim the additional
advantage that no brass is wasted and the pipes have not to be changed so often,
thereby reducing considerably the cost of maintenance.
Where it is not thought desirable to have the above pipes in housings of rolls
under bottom bearings, the water after circulating through the top pipes is led
by an overflow suitably shaped on to the outside end of bottom roll bearings
direct.
The water being hot has no tendency to chill the roll but reduces the tem-
perature gradually by causing a gradual outflow of heat from centre of roll
to ends.
In either case there will be considerably less risk of rolls breaking from causes
already mentioned. beside less lubricant being required than is at present the
case and considerably less brass wasted.
1000
EDWARD LONES.
JOB LEWIS.
JOHN H. LONES.

page_text: •
Appliances for Reducing the Temperature of Hot Rolls and Bearings
without Risk.
We, EDWARD LONES, of Ynis House, New Road, Lanelly, South Wales, and
late of Bucklands, Lydney, Gloucestershire, Works Manager, JOB LEWIS,
of Churchfield, Lydney, Gloucestershire, Roll Turner, and Joux HUNT LONES,
of 38, Coldstream Street, Lanelly, and late of Victoria Road, Lydney aforesaid,
Roll Turner, 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 reduce the temperature of hot rolls and
roll bearings used in black plate and sheet mills without risk of breakages which
are usually due to sudden and irregular fluctuations of temperature while at the
same time we attain the desired reduction of temperature in an effective regular
and economical manner by allowing cold water to circulate through pipes or
cores formed in the riders or housings and thus gradually reduce the temperature
of the bearings by conduction thereby inducing a continous outflow of heat from
body to ends of rolls and allowing the rolls to be constantly worked without
risk of bursting while a great saving of brass and an economy grease
effected by thus keeping the bearings cool.
For the purpose of illustrating our invention
of
19
Figure 1 is an end elevation of the roll bearings shewing one method of applying
our invention to a cast iron rider.
Figure 2 is a sectional plan through same.
Figure 3 is an end elevation of the roll bearings shewing another method of
applying our invention to a cast steel rider.
Figure 4 is a sectional plan of same.
In carrying out our invention as applied to cast iron riders we cast or other-
wise place the wrought iron pipe or core or circulating chambers constructed by
cores marked A in the top carriages or riders B of the rolls and these are arranged
so as to provide a free circulation of water above and around the brass bearings C.
In cases where pipes are used such as shew in Figures 1 and 2 the two ends a
of the pipes are allowed to project and are screwed or tapped for the supply
and exit of the water which is circulating while in the ease of cores, the
inlets a² and outlets a are tapped and drilled for the connections while in the
case of the cored cross passage the ends of the holes are plugged at a³.
The bottoms of the roll housings F may be similarly provided with pipes or
cores and the connections so arranged by moveable joints that the outflow of
water from top rider may be led into the bottom pipe or core and circulate
. through same or vice versa thus saving two separate feeds while the connecting
pipes between the two may be provided with a stuffing box or other suitable
joint so as to allow for spring of rolls when pieces enter.
By these means no water comes into immediate contact with roll or bearings
therefore the chilling which is dangerous to hot rolls cannot be set up while the
amount of cooling required according to condition of rolls may be regulated by
means of a cock or valve on the supply pipe.
We do not propose to form such passages in the brasses or bearing parts them-
selves as such would entail considerable expense in forming new passages each
time the brasses or bearing parts were replenished while the brasses would
in such cases also require to be considerably larger to accomodate adequate
passages.

page_text: Having now particularly described and ascertained the nature of our sail
invention and in what manner the same is to be performed we declare that what
we claim is :-
1st. For reducing the temperature of hot rolls and bearings, the water cir-
culating pipes or passages formed in such top riders or carriages and bottom of
housings which are in contact with and support the brass or other bearing pieces
substantially as herein set forth and illustrated.
2nd. For reducing the temperature of hot rolls and bearings connecting the
water circulating pipes or passages in top riders or carriages and bottom of
housings adjacent to the bearing parts with each other by pipes having inter-
mediate self adjusting joints substantially as and for the purpose herein sei
forth.
Dated this 15th day of December 1899.
LEWIS WM. GOOLD,
Agent for Applicant,
5, Corporation Street, Birmingham.