IN LOOMS FOR WEAVING FANCY GOODS
Year: 1877

page_text: PROVISIONAL SPECIFICATION left by William Shorrock at the Office of the
Commissioners of Patents on the 5th February 1877.
WILLIAM SHORROCK, of Preston, in the County of Lancaster.
IN LOOMS FOR WEAVING FANCY GOODS."
"IMPROVEMENTS
On the 29th day of May, 1875, Letters Patent were granted to me for "Improve-
ments in Looms for Weaving, No. 1966; I likewise on the 3rd day of January,
1876, lodged Provisional Specification for Improvements in Double Lift Dobbys
for Weaving, No. 18; on the 13th day of March, 1876, I, in connection with
John Lewis, lodged Provisional Specification for Improved Combined Heald
Springs for Weaving Fancy Work of every description."
The whole of these Inventions are designed for the purpose of weaving fancy
goods of all descriptions. My present Invention consists of still further improve-
iments on those Inventions, which I effect in the following manner :—
The first part of my Invention consists of working a lagg barrel on each end of
the machine (instead of one barrel only) with the jacks divided into equal numbers
on both sides, leaning to a top bar outward while inactive. This is attained by
crooking the jacks inward at foots so as to rest ou the toe end when down. To
such toe end of the jack I link firmly, yet to work freely, a sinall rod or bar to
which I secure the strings for drawing up the healds; in the centre of the
framing at top I work a shaft through each side, on the outer ends of which I key
or otherwise fix firmly a double or bell-crank lever, between each ends of which,
ori each side of machine, I secure a steel swivel knife for lifting the jacks alter-
nately, same as in my before-mentioned double lift dobby. On each outer side of
the frame I fit an horizontal slide bar, between which and at proper distances from
the jacks I place my lagg barrels; these two lagg barrels, when the laggs and pegs
are on, are moved to and fro alternately by means of a motion by a small eccentric
on the main shaft at top and rod therefrom, with a stud or pin secured in the end,
passing through a vertical slot in the side frame and into an angular slot in the
horizontal side slide bars. Thus, at every motion of the top shaft the barrels are
brought backwards and forwards with the laggs and pegs, pushing thereby such
jacks as the pegs may come in contact with and as required from the bar at top,
bringing them in position for the knives to take up, acting thus alternately ou both
ends of the machine. At the back of the machine and on each outer end of lagg

page_text: barrel shafts fix a chain wheel, over which I work an endless chain, which serves
the purpose of working lagg barrels alternately and at proper times; this is worked
by means of a star wheel and spring. Instead of endless chain and its wheels
I may use gearing or other equivalents for giving this motion, likewise with the
horizontal side slide bars. Motion is given to the lagg barrels by catch wheel fixed
on the spindle of one of the lagg barrels, the catch finger being worked on a stud
fixed on the outer eccentric. Motion is given to this machine, either by crank lever
from the outside end of loon shaft or by eccentric and rod through the yarn from
warp at back.
The second part of my Invention consists in improvements in the heald springs
which fix at the cross rail of the loom for bringing the healds down. In our
before-mentioned Patent we secured the springs to the boards by wires, and fixed at
the front a wire grate for the springs to slide in; for these I substitute a bar of
wood or its equivalent across the feet of the springs, and secured by bolts through
the boards. In place of the wire grate in front 1 substitute a guide grate of wood
which does not wear away nor injure the spring bars.

page_text: PROVISIONAL SPECIFICATION left by William Shorrock at the Office of the
Commissioners of Patents on the 5th February 1877.
"IMPROVEMENTS.
WILLIAM SHORROCK, of Preston, in the County of Lancaster.
IN LOOMS FOR WEAVING FANCY GOODS."
On the 29th day of May, 1875, Letters Patent were granted to me for "Improve-
ments in Looms for Weaving, No. 1966; I likewise on the 3rd day of January,
1876, lodged Provisional Specification for "Improvements in Double Lift Dobbys
for Weaving, No. 18; on the 13th day of March, 1876, I, in connection_with
John Lewis, lodged Provisional Specification for Improved Combined Heald
Springs for Weaving Fancy Work of every description."
The whole of these Inventions are desigued for the purpose of weaving fancy
goods of all descriptions. My present Invention consists of still further improve-
ments on those Inventions, which I effect in the following manner :-
"
The first part of my Invention consists of working a lagg barrel on each end of
the machine (instead of one barrel only) with the jacks divided into equal numbers
on both sides, leaning to a top bar outward while inactive. This is attained by
crooking the jacks inward at foots so as to rest on the toe end when down. To
such toe end of the jack I link firmly, yet to work freely, a small rod or bar to
which I secure the strings for drawing up the healds; in the centre of the
framing at top I work a shaft through each side, on the outer ends of which I key
or otherwise fix firmly a double or bell-crank lever, between each ends of which,
on each side of machine, I secure a steel swivel knife for lifting the jacks alter-
nately, same as in my before-mentioned double lift dobby. On each outer side of
the frame I fit an horizontal slide bar, between which and at proper distances from
the jacks I place my lagg barrels; these two lagg barrels, when the laggs and pegs
are on, are moved to and fro alternately by means of a motion by a small eccentric
on the main shaft at top and rod therefrom, with a stud or pin secured in the end,
passing through a vertical slot in the side frame and into an angular slot in the
horizontal side slide bars. Thus, at every motion of the top shaft the barrels are
brought backwards and forwards with the laggs and pegs, pushing thereby such
jacks as the pegs may come in contact with and as required from the bar at top,
bringing them in position for the knives to take up, acting thus alternately on both
ends of the machine. At the back of the machine and on each outer end of lagg

page_text: barrel shafts I fix a chain wheel, over which I work an endless chain, which serves
the purpose of working lagg barrels alternately and at proper times; this is worked
by means of a star wheel and spring. Instead of endless chain and its wheels
I may use gearing or other equivalents for giving this motion, likewise with the
horizontal side slide bars. Motion is given to the lagg barrels by catch wheel fixed
on the spindle of one of the lagg barrels, the catch finger being worked on a stud
fixed on the outer eccentric. Motion is given to this machine, either by crank lever
from the outside end of loom shaft or by eccentric and rod through the yarn from
warp at back.
The second part of my Invention consists in improvements in the heald springs
which I fix at the cross rail of the loom for bringing the healds down. In our
before-mentioned Patent we secured the springs to the boards by wires, and fixed at
the front a wire grate for the springs to slide in; for these I substitute a bar of
wood or its equivalent across the feet of the springs, and secured by bolts through
the boards. In place of the wire grate in front I substitute a guide grate of wood
which does not wear away nor injure the spring bars.