Improvements in Roll Bars and Plates Used in Rag Engines for the Manufacture of Paper.
Year: 1887

page_text: Date of Application, 28th May, 1887
Complete Left, 23rd Feb., 1888
Complete Accepted, 4th May. 1888
Improvements in Roll Bars and Plates Used in Rag Engines for
the Manufacture of Paper.
I, GEORGE HIBBERT of 17 The Crescent Gateshead Engineer in the County of
Durham do hereby declare the nature of this invention to be as follows :-
This invention relates to improvements in protecting roll bars and plates from
corrosion so that they will keep a better working edge and last longer.
In carrying out this invention, I place a thin hard plate on one or both sides of roll
bars and plates, made of brass, phosphor bronze, or any other suitable noncorrosive
metals, and they can be made either straight or corrugated, or sorrated on the face, so
that they will give more cutting face; and can be fixed in the roll and plates in the
ordinary way keyed fast with wedge pieces. The thin noncorrosive plates I make a
little hollow on one side which side I put next the steel bar so that it will be tight to
the steel bars at the top edge when keyed, or they can be fixed to the bars & plates
with screws or rivets or any other way.

page_text: ACCAR
233N
1495
POSTED O
the Manufacture of Paper.
I GEORGE HIBBERT of 17 The Crescent Gateshead-on-Tyne in the County of
Durham 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:-
In carrying out this invention, I place a thin plate made of brass, phosphor bronze,
or any other suitable noncorrosive metals, on one or both sides of the steel bars used
in the manufacture of paper; to prevent them from being eaten away by the acids,
used in paper pulp, so that the cutting edges of the steel bars are kept good, and
makes the steel bars more durable. They can be made either streight, corrugated or
serrated on the face, so that they will give more cutting surface. They can be fixed
in with the steel bars, in the ordinary way, or can be fixed to the steel bars with screws,
rivets, or in any other suitable way.
Fig. 1, is an end view of roll. A, is the end of steel or iron bars; and B, is a thin
plate, made of brass, or any other noncorrosive metals.
Fig. 2, is a side view of steel or iron bar A.
Fig. 3, is the top edge of bar A, made of steel or iron, and B, B, are thin plates,
made of brass, or any other noncorrosive metals, and fixed on each side of bar A.
Fig. 4, is a bottom plate, (for fixing under the roll, Fig. 1) with thin noncorrosive
plates B, on the face side of bars A.
Fig. 5, is a disc, geared with steel or iron bars D, and B, is a thin plate made of a
noncorrosive metals.
Fig. 6, is a side view of steel bar D.
Fig. 7, is an end view of D, and B, B are the thin plates, to protect the acids
from eating the steel or iron bars D, so that they will keep their cutting edges
good.
Having now particularly described and ascertained, the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is :-
First. The use of a revolving roll, or disc, such as, Figs. 1, and 5, geared with steel
or iron bars, A, and D, having on one or both sides, a thin plate B, made of brass, or
other suitable noncorrosive metals.
Second. The bed plate, Fig. 4, (for working under the roll) can have a thin plate B,
on the face side of bars A, made of brass, or any other composition.
Third. The bars can be fastened in with wedges, screws, or other means.