IMPROVEMENTS IN MECHANISM FOR to be as OF LOOMS FOR WEAVING DROP BOXES OPERATING THE HEALDS AND follows:-
Year: 1884

page_text: TRUVIDIONAL
I GEORGE HERBERT HODGSON of the firm of "George Hodgson" Laycocks Mill,
Thornton Road Bradford in the County of York Machine Maker do hereby
declare the nature of my said invention for "IMPROVEMENTS IN MECHANISM FOR
to be as
OF LOOMS FOR WEAVING
DROP BOXES
OPERATING THE HEALDS AND
follows:-
93
"
The improvements in heald mechanism comprise, knife lifter levers or bars, so
constructed and arranged, as to permit the free passage of the draw bar, over the
spear heads, of the notches, formed in the knives, at a time when a knife and lifter
lever (or knives and lifter levers) are in their raised position, by reason of a
or pegs, being thereunder, and the improvements are mainly designed, to be used,
in combination with eyed heald levers, operated by means of eccentrics and
segment wheel worked by toothed or rack knives.
peg
The knife operating end of the said lifter lever, is cranked upwards and in such
part is formed an eye or vertical slot, through which the knife is passed-In the
opposite end of the said lever, is a loop or oblong eye, through which a carrying
cross shaft is passed-below the loop is a lug, to which and to a cross bar, a spiral
spring is attached--When a peg is under a lifter lever, and the latter and knife are
raised, at a time when the movement of the draw bar, causes the said bar, to come
in contact with the incline or spear head of the notch, in the knife, the friction or
pressure on the spear, causes the lifter lever, to tilt on the pattern peg, as a fulcrum,
and the draw bar thus passes, smoothly over the spear, and into the notch of the
knife, the spiral spring ensures the knife resuming its proper position-The shuttle
box lever, and box rod, are operated so as to bring the required cell and shuttle, in
line with the shuttles race, by means a combination of eyed or looped cranked
levers, operated by rack, segment, and eccentric, and controlled and steadied,
during the descent of the boxes, by pulley brakes.
The said eyed or looped cranked levers, are carried on a cross shaft, on the free
end of one of such levers, is a grooved pulley, over which a cord or chain is passed,
one end of which is connected to the arm of the adjoining lever, the other end of
the cord or chain being attached, to one end of the shuttle box lever, the box rod
and boxes being carried by the opposite end of the said lever, as ordinary.

page_text: As the eccentrics within the eyed cranked levers are moved, so will the said
levers, and cords or chains be operated, lifting or dropping the shuttle boxes, and
bringing the required shuttle cell, and shuttle, into line with the race, according to
the pattern being woven- -On the eccentric shaft are box, or hollow disc grooved
pulley brakes, clipped by strap or band of leather, the hollow of the disc, contains
a concentric ratchet wheel, and on the other inner face of disc is a stud, carrying a
spring pawl or catch, which during the upward movement of the boxes, is free to
pass over the teeth of the ratchet wheel, but engages therewith, on the downward
movement of the boxes, ensuring smooth, and steady descent, and prevents any
part overrunning, or being thrown out of adjustment.

page_text: I GEORGE HERBERT HODGSON, Laycocks Mill, Thornton Road, Bradford, in the
County of York, Machine Maker, do hereby declare the nature of my said inven-
tion for "IMPROVEMENTS IN MECHANISM FOR OPERATING THE HEALDS, AND "DROP
BOXES," OF LOOMS FOR WEAVING," and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
The improvements in heald mechanism, comprise, knife lifter levers or bars, so
constructed and arranged, as to permit the free passage of the draw bar, over the
spear heads of the notches formed in the knives, at a time when a knife, and lifter
lever, (or knives and lifter levers) are in their raised position, by reason of a peg or
pegs being thereunder, and the improvements are mainly designed, to be used in
combination with eyed levers operated by means of eccentrics and segment wheels
worked by toothed or rack knives for operating the shuttle boxes.
Such being the nature and object of my said invention, the following is a
complete description of same, reference being had, to the accompanying drawings,
forming a part of this specification, in which :-
Fig. 1 is side elevation, partly in section, of apparatus for operating the healds.
Fig. 2 is side elevation, partly in section, of apparatus for operating the shuttle
boxes.
Fig. 3 is end elevation of Fig. 2.
The knife operating end, of the said lifter lever 1, is cranked upwards at 2, and
in such part, is formed an eye, or vertical slot 3, through which the knife 4 is
passed-In the opposite end of the said lever 1, is a loop or oblong eye 5, through
which a carrying cross shaft 6, is passed-below the loop, is a lug 7, to which, and to
a cross bar 8, a spiral spring 9,jis attached-When a peg 12, is under a lifter lever 1,
and the latter and knife are raised, at a time when the movement of the draw bar,
causes the said bar to come in contact with the incline or spear head 10, of the
notch 11, in the knife 4, the friction or pressure on the spear, causes the lifter
lever 1, to tilt on the pattern peg 12, as a fulcrum, and the draw bar thus passes,
smoothly over the spear, and into the notch 11 of the knife 4, the spiral spring 9,
ensures the knife, resuming its proper position-13 operates the healds.
The shuttle box lever 14, and box rod 15, are operated, so as to bring the
required cell, and shuttle box 16, in line with the shuttles race, by means of a
combination of eyed or looped cranked levers 17, operated by rack 18, segment 19,
and eccentric 20, and controlled and steadied, during the descent of the boxes, by
pulley brakes 21. The rack 18 is operated by the ordinary draw bars.
The said eyed or looped cranked levers 17, are carried on a cross shaft 22-On
the free end of one of such levers, is a grooved pulley 23, over which a cord or
chain 24 is passed-one end of which is connected to the arm of the adjoining
lever 25, the other end of the cord or chain 24 being attached to one end of the
shuttle box lever 14, the box rod 15, and box 16, being carried by the opposite end
of the said lever, as ordinary.
As the eccentrics, within the said cranked levers 17, are moved, so will the said
levers, and cords or chains bo operated, lifting or dropping the shuttle boxes, and
bringing the required shuttle cell, and shuttle, into line with the race, according to
the pattern being woven.

page_text: Having now particularly described, and ascertained, the nature of my said
Invention, and in what manner the same is to be performed, I declare that what
I claim is
1. The lifter lever 1, operated, and operating as described, and in combination
with the peg mechanism, and knife 4, for transmitting motion to the healds, and as
herein described and illustrated.
2. The lever 17, pulley 23, and lever 14, operated by, and in combination with,
the actuating rack 18, segment 19, and eccentric 20 as herein decsribed and
illustrated by drawings annexed.