IMPROVEMENTS IN COMMUNICATING MOTION TO MACHINERY FOR MANUFACTURING PAPER PULP."
Year: 1863

page_text: LETTERS PATENT to James Park, of Bury, in the County of Lancaster,
Engineer, for the Invention of "IMPROVEMENTS IN COMMUNICATING MOTION
TO MACHINERY FOR MANUFACTURING PAPER PULP."
PROVISIONAL SPECIFICATION left by the said James Park at the Office
of the Commissioners of Patents, with his Petition, on the 7th May
1868.
I, JAMES PARK, of Bury, in the County of Lancaster, Engineer, do hereby
declare the nature of the said Invention for "IMPROVEMENTS IN COMMUNICATING
MOTION TO MACHINERY FOR MANUFACTURING PAPER PULP," to be as follows:-
This Invention relates to certain improved modes of communicating motion
to rag engines for manufacturing paper pulp.
In the Specification of former Letters Patent granted to me on the Twenty-
fourth of May, One thousand eight hundred and fifty-five, No. 1170, a steam
engine is shewn combined with a rag engine. The object of my present
Invention is to economise power, as it is well known that in working rag
engines much more power is required in finishing the operation than at the
commencement, consequently when two rag engines are working together by

page_text: so timing the operations that one of the engines is breaking while the other is
finishing; these two engines can be worked with considerably less than twice
the power that would be required for working one of them. My present
Invention, therefore, consists in the combination of a steam engine with two
or more rag engines.
The bed plate of the steam engine is attached to the troughs of the rag
engines, thus dispensing with a separate foundation for the steam engine. The
axles of the drums of the two rag engines are connected by means of a link
jointed to the crank pins projecting from the fly wheels, to one of which crank
pins the connecting rod of a steam engine is jointed, and this crank pin may
be connected by a rod to the crank pin of another rag engine; or the motion
may be communicated to one or more rag engines by means of straps passing
over the fly wheels, or by toothed gearing. By this means the advantages of
my former Patent are retained, while power is economised, and the expenso of
construction is reduced.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said James Park in the Great Seal Patent Office on the 5th
November 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JAMES
PARK, of Bury, in the County of Lancaster, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventh day of May, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-sixth year of
Her reign, did, for Herself, Her heirs and successors, give and grant
unto me, the said James Park, Her special license that I, the said
James Park, my executors, administrators, and assigns, or such others
as I, the said James Park, my executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and at
all times thereafter during the term therein expressed, should and lawfully
might make, use, exercise, and vend, within the United Kingdom of Great
Britain and Ireland, the Channel Islands, and Isle of Man, an Invention for
"IMPROVEMENTS IN COMMUNICATING MOTION TO MACHINERY FOR MANUFACTURING
PAPER PULP," upon the condition (amongst others) that I, the said James
Park, my executors or administrators, by an instrument in writing under my,
or their, or one of their hands and seals, should particularly describe and ascer-

page_text: tain the nature of the said Invention, and in what manner the same was to be
performed, and cause the same to be filed in the Great Seal Patent Office
within six calendar months next and immediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said James Park, do hereby declare the
nature of my said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement, that is to say):-
This Invention relates to certain improved modes of communicating motion
to rag engines for manufacturing paper pulp.
In the Specification of former Letters Patent granted to me on the Twenty-
fourth of May One thousand eight hundred and fifty-five, Number 1170, a
steam engine is shewn combined with a rag engine. The object of my present
Invention is to economize power, as it is well known that in working rag
eugines much more power is required in finishing the operation than at the
commencement, consequently when two rag engines are working together by
so timing the operations that one of the engines is breaking while the other is
finishing; these two engines can be worked with considerably less than twice
the power that would be required for working one of them. My present
Invention, therefore, consists in the combination of a steam engine with two
or more rag engines..
And in order that my Invention may be fully understood and readily
carried into operation, I will proceed to describe the accompanying two
Sheets of Drawings, reference being had to the figures and letters marked
thereon.
Figure 1 represents a plan view of two rag engines of the usual construction
for manufacturing paper pulp, to which motion is communicated according to
my Invention. a, a, are the cisterns of the rag engines; b, b, the rolls or
cylinders, which are fixed to the shafts c, c, revolving in the bearings d, e.
To the shafts care fixed the fly wheels f, from which project the crank
pins 9, 9'. To the crank pin g is connected one end of the connecting rod h,
which receives motion from the piston rod i and piston working in the steam
cylinder k. The crank pin g' is driven from the crank ping by the link y²;
the cylinder k is secured to the plate m, which is bolted to and connects the
troughs a, a. The valve for the cylinder k is contained in the valve box n,
and it is worked by the eccentric o and rod p, or in any other convenient
manner. When the two rag engines are in operation, one of them may be
breaking while the other is finishing, for equalising the power required for

page_text: driving them. By this means the advantages of my former Invention are
retained, power is economised, and the expence of construction and production
is greatly reduced.
Figure 2 represents in plan a modification of my Invention, in which the
two rag engines are placed end to end, the principal difference between this
arrangement and the one above described is, that the fly wheels fare in this
instance rather loss in diameter, but broader than in Figure 1, to adapt them
for a broad driving strap, by which the motion imparted to the first shaft c is
transmitted to the other; the crank pin g is connected by the link g³ to the
crank g', and the eccentric o is fixed to the shaft of the crank g'.
Figure 3 represents a plan of four rag engines to which motion is com-
municated by one steam engine. The connecting rod his connected to the
crank pin g projecting from one of the fly wheels or pulleys f, the other being
connected to it by a link, as shewn and described in Figure 1; these two fly
wheels transmit the motion to the other two by broad driving belts, as in
Figure 2.
Figure 4 represents a plan of a modification of my Invention; in this
instance the motion is communicated to four rag engines from a single steami
engine by spur gearing. The connecting rod h is jointed to the crank shaft, 9,
to which are fixed the wheels g³ gearing into the wheels f on the axles c of the
rolls b.
Figures 5 and 6 are an elevation and plan of another modification of my
Invention. In the preceding Figures the steam cylinders k have been placed
horizontally, but in the arrangement I am going to describe the steam engine
is vertical, and the connecting rod h gives motion to the crank shaft r by the
crank pin g. To the shaft are fixed the two drums 7, from which the four
rag engines are driven by straps. The pedestals in which the shaft ? revolves
are fixed to the standards m, which are bolted to and unite the troughs a, a.
The rag engines may all be placed on the same level, as shown in Figure 5,
or two of them may be placed on a lower level than the others for the con-
venience of running the pulp from one trough to the other, as shown by the
dotted lines in Figure 5.
In some cases three rag engines or more than four may be combined and
driven according to either of arrangments above referred to.
Having thus stated the nature of my Invention, and described several
modes of carrying the same into operation, I wish to remark that I do not
limit myself to the details given, as they may be considerably varied; I
claim communicating motion to two or more rag engines from one steam

page_text: engine supported by the troughs of the rag engines, as described, or any
modifications or combinations of the same.
In witness whereof, I, the said James Park, have hereto set my hand
and seal, this Third day of November, in the year of our Lord One
thousand eight hundred and sixty-three.
JAMES PARK. (L.S.)