AN IMPROVED THROSTLE AND MULE SPRING, FOR THE UNDERCLEARERS OF SPINNING MACHINES
Year: 1857

page_text: LETTERS PATENT to William Standring, of Bury Road, Rochdale, in the
County of Lancaster, Doffing Plate and Spring Maker, for the Invention
of "AN IMPROVED THROSTLE AND MULE SPRING, FOR THE UNDERCLEARERS
OF SPINNING MACHINES."
Sealed the 4th June 1858, and dated the 4th December 1857.
PROVISIONAL SPECIFICATION left by the said William Standring at the
Office of the Commissioners of Patents, with his Petition, on the
4th December 1857.
I, WILLIAM STANDRING, of Bury Road, Rochdale, in the County of Lan-
caster, Doffing Plate and Spring Maker, do hereby declare the nature of the
said Invention for "AN IMPROVED THROSTLE AND MULE SPRING FOR THE UNDER-
CLEARERS OF SPINNING MACHINES," to be as follows:-
This Invention consists in substituting in place of the brass or iron steps
hitherto employed in spinning machines a piece of cast steel hardened and
tempered so as to answer the purpose of a spring; the intention of this
Invention being to prevent the loosening and breaking of the step, which
frequently occurs.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Standring in the Great Seal Patent Office on the
4th June 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
STANDRING, of Bury Road, Rochdale, in the County of Lancaster, Dofling
Plate and Spring Maker, send greeting..
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fourth day of December, in the year of our Lord
One thousand cight hundred and fifty-seven, in the twenty-first year of Iler
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said William Standring, Her special licence that I, the said William
Standring, my executors, administrators, and assigns, or such others as 1, the
said William Standring, 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 "AN
IMPROVED THROSTLE AND MULE SPRING FOR THE UNDERCLEARERS OP SPINNING
MACHINES," upon the condition (amongst others) that I, the said William
Standring, my executors or administrators, by an instrument in writing under
my 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
dato of the said Letters Patent.
NOW KNOW YE, that 1, the said William Standring do hereby declare
the nature of the said Invention, and. in what mannor the same is to bo
'performed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
My Invention consists in substituting in place of the brass, iron, or any
other metallic steps hitherto employed in spinning machines, a piece of sheet
cast steel hardened and tempered so as to answer the purpose of a spring and
stop in one; the intention of this being to prevent the loosening and breaking
of the step, which frequently occurs.
In order to explain my said Invention as completely as possible, I now
proceed to describe the best means I am acquainted with for carrying the same
into practical effect, reference being had to the illustrative Drawing hereunto

page_text: Figure 1 is a plan view of the under side of the spring; Figure 2, an edge
view of the spring.
Similar letters of reference are placed upon and denote corresponding parts
in so far as such parts appear or can be seen at each of such said Figures
respectively. Upon referring to the Drawing it will be seen that A is that
part of the spring which is to rest upon and be connected to the framing of
the machine; B, the elastic part of the spring, the curved end whereof
supports the pivot of the "underclearer;" the part C being made double the
thickness of the other parts for the purpose of strengthening it, and for the
better support of the pivot of the "underclearer."
Having now fully described and set forth the nature and object of my said
Invention of "An Improved Throstle and Mule Spring for the Underclearers
of Spinning Machines," together with the best means I am acquainted with
for carrying the same into practical effect, I would remark, in conclusion,
that what I claim as my Invention is, the substitution of springs made
throughout of one piece of sheet cast steel, thereby doing away with the brass,
iron, or any other kind of step, rivetted or soldered to the spring hitherto
employed for the underclearers of spinning machines.
In witness whereof, I, the said William Standring, have hereunto set my
hand and seal, this Nineteenth day of May, in the year of Lord One
thousand eight hundred and fifty-eight.
Witness,
JAMES HOYLE,
29, Bury Road, Rochdale.
WILLIAM STANDRING. (Ls.)