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

page_text: 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 said invention for "IMPROVEMENTS IN MECHANISM FOR OPERATING
THE HEALDS AND "DROP BOXES OF LOOMS FOR WEAVING to be as follows:-
"
"
In the aforesaid improvements for operating the healds, where the motion is
derived from the action of toothed or rack knives, and segment wheels, I combine
therewith, improved apparatus, for transmitting such motion, to the heald levers,
and healds.
•
I employ rack knives, gearing with segment or sector wheels, and as the knives
are moved by the draw bars, "to and fro" reciprocating or partial rotary motion,
is thereby given to the segment, or sector wheels, and to discs or flanges connected
therewith In each of the discs or flanges, is a pin, on which is received, one end
of a link or connecting rod, the other end of the latter is attached to the arm of an
inverted lever, which by connections communicates with, and operates the
healds The shuttle hoxes are raised, and lowered, so as to bring the required
shuttle into line with the race, by means of combined levers of the first, and second
order, operated by eccentrics, by preference worked by rack, and segment wheel,
controlled by pattern mechanism.
I employ a lever, having its fulcrum at one end, and at about midway its length is
a boss, through which is passed a pin or cross stud, projecting on both sides of the
said lever on the projecting parts of the pin or stud, and fast thereto, are mounted
two shorter levers, one on each side of the main lever, the free ends of the two
shorter levers, are in opposite directions, one terminates near the fulcrum of the
main lever, and carries the box rod and shuttles-the other shorter lever, terminates
near the ends of the first named lever, these ends of the levers are operated by
eccentrics, by which, and by reason of the variation of movement of the levers the
shuttle boxes are raised, and lowered as required.
Dated this 7th day of March 1884.
WALTER BRIERLEY,
Crossley Street, Halifax,
Agent for the Applicant.

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
invention 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 5
statement:—
In the aforesaid improvements for operating the healds, where the motion is
derived from the action of toothed or rack knives, and segment wheels, I combine
therewith, improved apparatus for transmitting such motion, to the heald levers,
and healds.
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 a side elevation of part of loom, shewing my improvements for operating
the healds.
Fig. 2 is an end elevation of apparatus for operating the shuttle boxes.
Fig. 3 is a back elevation, of improved apparatus, for operating the shuttle
boxes.
Figs. 4 to 12, inclusive, are details or separate parts, enlarged scale.
I employ rack knives 1, gearing with segment or sector wheels 2, and as the
knives 1, are moved by the draw bars 3, to and fro, reciprocating partial rotary
motion, is thereby given to the segment or sector wheels 2, and to discs or flanges 4,
connected therewith-In each of the discs or flanges 4, is a pin 5, on which is
received one end of a link or connecting rod 6, (details shewn sheet 3), the other
end of the rod 6, is attached to the arm 7, of an inverted 1 lever 8, which by
connections 9, 10, communicates with, and operates the healds 11.
The shuttle boxes 12, are raised and lowered, so as to bring the required shuttle
into line with the race, by means of combined levers 13, 14, 15, (see Fig. 12,
sheet 3,) of the first and second order, operated by eccentrics 16, by preference
worked by rack 17, and segment wheel 18, controlled by pattern mechanism.
The action of the said levers is as follows:-The lever 13, having its fulcrum
at.19, and at about midway its length is the boss 20, through which is passed, a
pin or cross stud 21, projecting on both sides of the said lever 13, On the
projecting parts 22, 23, of the pin or stud 21, and fast thereto, are mounted the
two shorter levers 14, 15, one on each side of the main lever 13, the free ends
24, 25, of the levers 14, 15, are as shewn in opposite directions, one terminates
near the fulcrum 19, of the main lever 13, and carries the box rod and shuttle
boxes 12. the lever 15, terminates near the end of the lever 13, and the ends 24, 25
of the levers 14, 15, are operated by eccentrics 16, and connecting rods 28 (see
Fig. 2), by which, and by reason of the variation of movement of the levers 14, 15,
the shuttle boxes are raised, and lowered, so as to bring any cell and shuttle into
line with the race, as the pattern being woven may require.
In looms of a construction where it is preferable, to use a single lever, in lieu of
compound levers 13, 14, 15 there will be employed a compound eccentric, operated
by segment wheel and rack as illustrated-(Fig. 10 sheet 3).
1

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 rack 1, segment wheel 2, disc 4, connecting hook 6, and lever 8 in
combination with and for operating the healds and as herein described and
illustrated.
2. The combination of rack 17, segment 18, operating by eccentrics 16, 16, and
rods 28, 28, the compound levers 13, 14, and boxes 12, as described and illustrated.