Healds of Looms for Weaving.
Year: 1885

page_text: Healds of Looms for Weaving.
We JAMES WARD and JOHN WARD both of Ingham Street Iron Works, Ingham
Street, Blackburn, in the County of Lancaster, Dobby and Jacquard Machine
Makers, do hereby declare the nature of our said invention for "IMPROVEMENTS IN
DOBBIES OR APPARATUS FOR OPERATING THE HEALDS OF LOOMS FOR WEAVING
to be as follows:-
"
These improvements referred to, have for their object, improved arrangement of
and means of actuating the peg barrels combined with improved construction and
arrangement of tumbler levers so that but one length of pattern peg is required
for both barrels and sets of tumbler levers-Improved construction of tumbler
levers so as to dispense with the wires or needles heretofore employed for operating
the draw hooks-To improved construction and coupling of the jack levers, and
the rocking levers for carrying the baulk or hook levers, dispensing with the
buttons on the jack levers and securing steady lifting of the healds.
We employ duplicate pattern barrels having uniform length of pegs and mount
these on jointed levers operated by connections from the jack levers the tumbler
levers which are operated by the pattern pegs are in pairs and coupled so that
either can be operated from its peg barrel without the necessity of using longer
pegs for one barrel as heretofore, the longer pegs being very liable to breakage.
The tumbler levers I form one having a vertical finger near its hook operating
end and operates the lower hooks, the other lever has a raised and curved end so
as to operate the upper hooks, the usual wires or needles for operating the hooks
are dispensed with.
We employ quadrant gear levers to which the heald cords are attached so as to
lift the healds from both ends by 'vertical motion of the cords as is well under-
stood, the quadrant levers we connect with or to the jack levers by a link free to
turn or swivel on its studs or joints, the other ends or arms of the jack levers
form fulcrums, and also carry the baulk or hook rocking lever-The construction
and arrangement of parts just described give a smooth and steady motion to the
healds and avoid all jerky and unsteady movements.
201
1007

page_text: 3
Healds of Looms for weaving.
We JAMES WARD and JOHN WARD, both of Ingham Street Iron Works, Ingham
Street, Blackburn, in the County of Lancaster, Dobby and Jacquard Machine
Makers do hereby declare the nature of our invention for IMPROVEMENTS IN
DOBBIES OR APPARATUS FOR OPERATING THE HEALDS 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:—
These improvements referred to have for their object improved arrangement of
and means of actuating the peg barrels combined with improved construction and
arrangement of tumbler levers, so that but one length of pattern peg is required
for both barrels and sets of tumbler levers.
Such being the nature and object of our said invention the following is a com-
plete 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 dobby having our improvements applied thereto.―
The several views on sheet 2. are illustrations of parts detached in order to clearly
illustrate construction thereof.
At 1. and 2. are duplicate pattern or barrels, the pegs of which are of the same
length in both barrels, the latter are carried in the rocking lever 3, at 4 and 5. are
two "tumbler "levers, or they form a compound tumbler lever; a series of these
'are arranged on their cross fulcrum shaft 6.-7. as ordinary ;-the lever for lifting
the bottom draw hooks 8. having a finger 9., whilst the levers for lifting the upper
draw hooks 10. act through the agency of the needle 11. as ordinary.-The draw
bars 12.-13. are operated by the T rocking lever as is well understood, so that as
the hooks 8.-10. are required to engage with the draw bars the barrels 1.-2. will
lift or permit the lowering of one or other of the tumbler levers, thereby
bringing the draw hooks 8-or 10. into position for the bars 12.-13. to engage
therewith, and through the lever 14. to move the lever 15.-upon its fulcrum 16.,
and by the link 17. lift the lever 18. upon its fulcrum 19. and by the sector
teeth 20, operate the corresponding lever 21. for raising the other end of the heald
staves 22. the lowering of the healds being effected by springs or weight-The
position of the peg barrels 1.-2 is changed so as to operate on either part of the
compound tumbler lever 4.-5 by means of the connections 23.-24.-25. from the
jack lever 18.

page_text: Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is
The duplicate pattern barrels having pegs of uniform lengths and in combination
with the duplicate or compound tumbler lever 4. 5. as described and illustrated.
The parts 18.-23.-24-25.-for operating and in combination with the pattern
barrels 1-2, as described and illustrated.