IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1880

page_text: LETTERS PATENT to Samuel Hargreaves, of Waterside, near Blackburn, in the
County of Lancaster, Mill Overlooker, for an Invention of "IMPROVEMENTS
IN LOOMS FOR WEAVING."
PROVISIONAL SPECIFICATION left by the said Samuel Hargreaves at the
Office of the Commissioners of Patents on the 5th May 1880.
SAMUEL HARGREAVES, of Waterside, near Blackburn, in the County of Lancaster,
Mill Overlooker. "IMPROVEMENTS IN LOOMS FOR WEAVING."
This Invention relates to improvements in dobbys or apparatus employed in the
weaving of figured borders or stripes in cotton pieces, and the object is to operate
the lags and pegs by improved mechanism.
I employ a star wheel motion which gives intermittent motion to a shaft and
endless strap, there being pegs or projections on the said strap, and as these are
brought round by the motion of the strap they from time to time, according to the
pattern to be woven, operate on a pin or finger and push a catch blade off a notched
bracket (the said blade being returned by spring). The other end of the blade is
hinged to one end of a lever; at the other end of said lever is a pendant wire
which, when the catch blade is knocked off, permits a pall or catch to engage with
a catch wheel on the axis of the drum of the pattern lags. The drum being thus
operated brings forward the lags and pegs, making the required change in the
weaving.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Samuel Hargreaves in the Great Seal Patent Office on the 4th
November 1880.
SAMUEL HARGREAVES, of Waterside, nr Blackburn, in the County of Lancaster,
Mill Overlooker. IMPROVEMENTS IN LOOMS FOR WEAVING."
This Invention relates to improvements in dobbys or apparatus employed in the
weaving of figured borders or stripes in cotton pieces, and the object is to operate
the lags and pegs by improved mechanism.

page_text: I employ a star wheel motion which gives intermittent motion to a shaft and
endless strap, there being pegs or projections on the said strap, and as these are
brought round by the motion of the strap they from time to time, according to the
pattern to be woven, operate on a pin or finger and push a catch blade off a notched
bracket (the said blade being returned by spring). The other end of the blade is
hinged to one end of a lever; at the other end of said lever is a pendant wire
which, when the catch blade is knocked off, permits a pall or catch to engage with
a catch wheel on the axis of the drum of the pattern lags. The drum being thus
operated brings forward the lags and pegs, making the required change in the
weaving.
Such being the nature and object of this my said Invention, in order that the
same may be fully understood I have hereunto annexed a Sheet of Drawings
illustrative thereof, and have marked the same with letters of reference.
DESCRIPTION OF DRAWINGS.
A is a star wheel having recesses X, with which pins X¹ on the catch wheel X2
engage, giving motion to the aforesaid star wheel A. The star wheel A has on its
boss B pins B which work the endless strap C, there being pegs or projections D on
the said strap, and as these are brought round by the motion of the strap C they from
time to time, according to the pattern to be woven, operate upon a pin or finger D¹
and push a catch blade or lever E off a notched bracket F, the said blade being
returned by spring G. The other end E of the blade E is hinged to one end of a
lever H; at the other end of the lever H is a pendant wire J which, when the
catch blade E is knocked off, permits a pall or catch K (resting on lever H) to
engage with a catch wheel L on the axis M of the drum of the pattern lags O. The
drum being thus operated brings forward the lags and pegs, making the required
change in the weaving. When there is a peg out in the lags the pendant wire J
being connected to the jacks by arm J¹ raises the lever H, so that the catch K
does not engage with the catch or pin wheel L. The projection D on the endless
trap C acting upon the blade E puts the catch in operation again.
Having thus described the nature and particulars of this my said Invention, I
would have it understood that I claim,-
Firstly. The combination of the strap C with projection D, lever D', blade or
notched lever E, acting in the manner and for the purposes as described.
Secondly. The combination of pendant wire J (having arm J¹) and lever H for
operating the pawl or catch K, as described and illustrated..
In witness whereof, I, the said Samuel Hargreaves, have hereunto set my
hand and seal, this First day of November, in the year of our Lord
One thousand eight hundred and eighty.
Witness,
JOHN E. WALSH,
Halifax.
SAMUEL HARGREAVES. (L.S.)