IMPROVEMENTS IN WRINGING AND MANGLING MACHINES
Year: 1871

page_text: LETTERS PATENT to James Hirst, Joseph Hirst, and John Hirst, all
of Britannia Works, Halifax, in the County of York, Machine
Makers, for the Invention of "IMPROVEMENTS IN WRINGING AND
MANGLING MACHINES."
Sealed the 11th August 1871, and dated the 14th February 1871.
PROVISIONAL SPECIFICATION left by the said James Hirst, Joseph
Hirst, and John Hirst at the Office of the Commissioners of
Patents, with their Petition, on the 14th February 1871.
We, JAMES HIRST, JOSEPH HIRST, and JOHN HIRST, all of Britannia
Works, Halifax, in the County of York, Machine Makers, do hereby
declare the nature of our said Invention for "IMPROVEMENTS IN WRINGING
AND MANGLING MACHINES," to be as follows:―
This Invention has for its object the construction and arrangement
connected with the apparatus, through which pressure is or may be
applied to the squeezing rollers in such manner as to reduce the number
of parts employed, and to simplify and lessen cost of production.

page_text: In constructing machines according to our Invention we dispense
with the mid rail or rail in an under spring machine, through which
the pin or screw for applying pressure to the spring is passed and
works.
Our construction is as follows:—The guide rods which are passed over
the brasses or necks of the top roller are attached to the pressure levers,
the projecting arms of which are formed to receive the bow spring,
through which and the bottom rail a pin is passed; the lower end of
the pin is chased or screwed, and works through or in a nut received by
and held or prevented from rotating by a "box or by projections cast
to the under side of the said rail. The top of the pin receives a hand
wheel or cross pin, a boss on which acts or bears on the said spring, so
that when pressure is to be applied to the spring it is effected by contact
of boss and spring.
"
The construction above described not only dispenses with the cumber-
some mid rail but admits contraction of the end rails or sides of the
machine, and a much neater and lighter construction with corresponding
economy is secured.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Hirst, Joseph Hirst, and John Hirst in the
Great Seal Patent Office on the 12th August 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JAMES
HIRST, JOSEPH HIRST, and JOHN HIRST, all of Britannia Works,
Halifax, in the County of York, Machine Makers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourteenth day of February, in the
year of our Lord One thousand eight hundred and seventy-one, in the
thirty-fourth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said James Hirst, Joseph Hirst, and John
Hirst, Her special licence that we, the said James Hirst, Joseph Hirst,
and John Hirst, our executors, administrators, and assigns, or such
others as we, the said James Hirst, Joseph Hirst, and John Hirst,
our executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during

page_text: 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 "IM-
PROVEMENTS IN WRINGING AND MANGLING MACHINES," upon the condition
(amongst others) that we, the said James Hirst, Joseph Hirst, and John
Hirst, our executors or administrators, by an instrument in writing
under our, or their, or one of their hands and seals, should particularly
describe and ascertain 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 we, the said James Hirst, Joseph Hirst, and
John Hirst, do hereby declare the nature of our said Invention and in
what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement (that is to say) :—
This Invention has for its object the construction and arrangement
connected with the apparatus through which pressure is or may be
applied to the squeezing rollers in such manner as to reduce the number
of parts employed, and to simplify and lessen cost of production.
In constructing machines according to our Invention we dispense
with the mid rail or rail in an under spring machine through which
the pin or screw for applying pressure to the spring is passed and
works.
Our construction is as follows:-The guide rods which are passed
over the brasses or necks of the top roller are attached to the pressure
levers, the projecting arms of which are formed to receive the bow
spring, through which and the bottom rail a pin is passed. The lower
end of the pin is chased or screwed, and works through or in a nut
received by and held or prevented from rotating by a "box
or by pro-
jections cast to the under side of the said rail. The top of the pin
receives a hand wheel, or cross pin, a boss on which acts or bears on
the said spring, so that when pressure is to be applied to the spring it
is effected by contact of boss and spring.
"
The construction above described not only dispenses with the cumber-
some mid rail, but admits contraction of the end rails or sides of the

page_text: of Drawings, and have marked the same with figures and letters of
reference, the same letter referring to the same part in the various views
or Figures.
At Figure 1 is shewn front elevation of machine constructed according
to our Invention; Fig. 2 is an end elevation of the same.
At Figs. 3 and 4 is shewn detail view enlarged scale (half size) of rail
box and nut.
A, A, are the guide rods; these extend from the pressure levers B, B,
over the brasses or necks C, C, of the top roller; the projecting part or
arm of these levers receive and support the ends of the bow spring E,
through which spring and the bottom rail E¹ the pin F is passed. The
lower end of this pin is chased or screwed, and works through or within
the nut G, received by and held or prevented from rotating by the box H
or by projections or lugs cast to the under side of the said rail. The top
of the pin F receives a hand wheel or cross pins J, the boss K bearing
on the spring E, so that when pressure is to be applied to the roller it is
effected by contact of boss and spring.
The construction of machine above described and shewn by Draw-
ings not only dispenses with the cumbersome mid rail, but admits
contraction of the end rails or sides of the machine, and a much neater
and lighter machine with corresponding economy is secured.
Having thus fully described the nature and particulars of this our
Invention, together with the manner in which the same is to be or may
be performed or carried into practical effect, we would have it under-
stood that we do not claim the guide rods for or through which pressure
is exerted on the roller brasses or necks, nor do we claim the pressure
levers B, B, as such are old and well understood; but what we do claim
is, the box and nut on and in the rail E', through which nut the chased
or screwed pin F works, the boss of the hand wheel bearing on the bow

page_text: spring E we are enabled to dispense with the mid rail herein fully
described and shewn in the Drawings.
In witness whereof, we, the said James Hirst, Joseph Hirst, and
John Hirst, have hereunto set our hands and seals, this Ninth
day of August, in the year of our Lord One thousand eight
hundred and seventy-one.
JAMES HIRST.
(L.S.)
0 Witness,
WALTER BRIERLEY,
Patent Agent,
Halifax.
JOSEPH HIRST. (L.S.)
JOHN HIRST.
(L.S.)