AN IMPROVED METHOD FOR CONVERTING RECIPROCATING INTO ROTATORY MOTION, OR FOR PRODUCING INTERMITTENT ROTATORY MOTION SUITABLE TO BE USED IN THE FEEDING OF MACHINERY EMPLOYED IN THE PREPARATION OF COTTON AND OTHER FIBROUS MATERIALS, AND FOR VARIOUS OTHER PURPOSES
Year: 1872

page_text: ETTERS PATENT to William Crighton, William Wright Crighton,
and Spencer Crighton, all of the Castlefield Iron Works, Manchester,
in the County of Lancaster, Machinists, for the Invention of "AN
IMPROVED METHOD FOR CONVERTING RECIPROCATING INTO ROTATORY MOTION,
OR FOR PRODUCING INTERMITTENT ROTATORY MOTION SUITABLE TO BE USED IN
THE FEEDING OF MACHINERY EMPLOYED IN THE PREPARATION OF COTTON AND
OTHER FIBROUS MATERIALS, AND FOR VARIOUS OTHER PURPOSES."
Sealed the 9th July 1872, and dated the 16th March 1872.
PROVISIONAL SPECIFICATION left by the said William Crighton,
William Wright Crighton, and Spencer Crighton at the Office of
the Commissioners of Patents, with their Petition, on the 16th
March 1872.
We, WILLIAM CRIGHTON, WILLIAM WRIGHT CRIGHTON, and SPENCER
CRIGHTON, all of the Castlefield Iron Works, Manchester, in the County
of Lancaster, Machinists, do hereby declare the nature of the said
Invention for "AN IMPROVED METHOD FOR CONVERTING RECIPROCATING INTO

page_text: ROTATORY MOTION, OR FOR PRODUCING INTERMITTENT ROTATORY MOTION SUITABLE
TO BE USED IN THE FEEDING OF MACHINERY EMPLOYED IN THE PREPARATION OF
COTTON AND OTHER FIBROUS MATERIALS, AND FOR VARIOUS OTHER PURPOSES," to
be as follows:-
Our Invention has for its object more particularly to obtain a substi-
tute for the ratchet wheel employed in the feeding of machinery with
cotton or other materials in the taking-up motion of looms, and for
producing a "feed motion" or intermittent rotatory motion in other
machinery.
33
Our Invention is particularly applicable to the "reciprocating feed
motion for which Letters Patent, dated the First day of December,
A.D. 1866, were granted to the aforesaid William Crighton.
In feed motions and similar apparatus wherein a single ratchet wheel
actuated by a single pawl is used it is not possible to vary the amount
of feed in a lesser degree than is due to the rotation of the said ratchet
wheel to an extent equal on the circumference to the length of a single
tooth.
In lieu of a ratchet wheel we employ a plain circular or cylindrical
wheel, and we fit the said wheel with a clip or with one or more clips or
straps. The two ends of the clip are jointed to a lever to which a
reciprocating connecting rod or link is attached or jointed, or the said
ends are jointed to the said rod or link, the arrangement being such as
that when the said rod or link is moved in one direction the said clip
tightens on the said wheel, and the wheel is caused to rotate; but, on
the contrary, when the said rod or link is moved in the contrary
direction the said clip is loosened, and slips upon the said wheel without
causing it to rotate.
When two clips are used one clip may be acting to cause the rotation
of the wheel at the same time that the other clip is moving back to be
ready to act upon the said wheel, and is therefore slipping on the said
wheel without affecting its motion. This arrangement admits of very
slight changes in the extent of each movement of the said wheel being
offanted

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Crighton, William Wright Crighton, and
Spencer Crighton in the Great Seal Patent Office on the 16th
September 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
CRIGHTON, WILLIAM WRIGHT CRIGHTON, and SPENCER CRIGHTON, all
of the Castlefield Iron Works, Manchester, in the County of Lancaster,
send greeting send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of March, in the year
of our Lord One thousand eight hundred and seventy-two, in the
thirty-fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto us, the said William Crighton, William Wright
Crighton, and Spencer Crighton, Her special license that we, the said
William Crighton, William Wright Crighton, and Spencer Crighton, our
executors, administrators, and assigns, or such others as we, the said
William Crighton, William Wright Crighton, and Spencer Crighton,
our 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 METHOD FOR CONVERTING RECIPROCATING INTO ROTATORY MOTION,
OR FOR PRODUCING INTERMITTENT ROTATORY MOTION SUITABLE TO BE USED IN THE
FEEDING OF MACHINERY EMPLOYED IN THE PREPARATION OF COTTON AND OTHER
FIBROUS MATERIALS, AND FOR VARIOUS OTHER PURPOSES," upon the condition
(amongst others) that we, the said William Crighton, William Wright
Crighton, and Spencer Crighton, our executors or administrators, by
an instrument in writing under our, or their, or one of our or their
hands and seals, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be per-
formed, 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.
ส
NOW KNOW YE, that I, the said the said William Wright Crighton, for
myself and on behalf of the said William Crighton and Spencer Crighton,

page_text: When two clips are used one clip may be acting to cause the rotation
of the wheel at the same time that the other clip is moving back to be
ready to act upon the said wheel, and is therefore slipping on the said
wheel without effecting its motion. This arrangement admits of very
slight changes in the extent of each movement of the said wheel being
effected.

page_text: www.y
have attached hereunto a Sheet of Drawings marked with letters of
reference, the same letters indicating corresponding parts in the various
Figures.
Referring in this place to the said Drawings, Fig. 1 is an clevation,
and Fig. 2 a plan illustrating the application of our Invention to a
scutcher or lap machine.
In the said Figures a is a portion of the framing of a scutcher, and
b, b, are the feed rollers. A spur wheel c is fixed on the axle of the
lower feed roller, and a second spur wheel mounted on a stud gears with
the wheel c. A cylinder or plain circular wheel d, shewn separately in
section at Fig. 3, is fixed to or formed in one piece with the said spur
wheel c, and on the said wheel d are mounted two clip rings e and f,
shewn separately at Figs. 4 and 5. Each clip is bored out internally,
so as to be a good but easy fit on the periphery of the wheel d, and is
split at g, the ends of the split ring or clip being formed with lugs h
and i. Two levers k and are jointed to the two lugs h, h, of the two
clips, and a pin m in each of the lugs i, i, enters a slot formed in the
shorter end of each of the said levers, the arrangement being such as
that when the longer ends of the two levers are drawn downwards the
lever will tighten the clip on which it is mounted, and the lever /
will loosen the clip on which it is mounted, a reverse action taking
place when the ends of the said levers are moved upwards. The said
longer ends in the example illustrated are connected by the links n, n,
to the end of a lever o, which may correspond with the vibrating lever g
referred to in the Specification of the herein-before mentioned Letters
Patent granted in the year 1866. As the outer end of the lever o
vibrates to and fro a to-and-fro or upward and downward movement is
imparted to the ends of the levers k and I, and an intermittent rotatory
motion in the direction of the arrow is imparted to the wheel d. We
do not confine ourselves to the precise method of imparting a to-and-fro
movement to the outer ends of the levers k and l, as different methods
may be adopted to suit varying circumstances and requirements.
Having now fully described and indicated the nature of our said
Invention, we would in conclusion have it to be distinctly understood
that we claim the employment for the purposes herein-before set forth
and indicated of the clip rings e and together or separately when acted

page_text: upon by the levers k and / or by equivalent parts, substantially as
herein-before described and indicated.
In witness whereof, I, the said William Wright Crighton, for
myself and on behalf of the said William Crighton and Spencer
Crighton, have hereunto set my hand and seal, this Fourteenth
day of September, in the year of our Lord One thousand eight
hundred and seventy-two.
WILLIAM WRIGHT CRIGHTON. (L.S.)
Signed and sealed by the said
William Wright Crighton,
in the presence of
EDWARD K. DUTTON,
Agent for the Patentees,
3, Smithy Door,
Manchester.