IMPROVEMENTS IN DOBBIES OF LOOMS FOR WEAVING
Year: 1885

page_text: I FRANCIS WILLIAM JEPSON, of No 25 Cromwell Terrace, Blackburn, in the
County of Lancaster, Mill Manager, do hereby declare the nature of my said
invention for "IMPROVEMENTS IN DOBBIES OF LOOMS FOR WEAVING'
"to be as
follows:
The improvements in dobbies comprise improved construction of needles, hooks,
and levers for actuating the heald cords, also to duplicate peg lag barrel, operated
from the jack levers, for weaving the selvage borders, and body of the piece, the
said barrel being employed, when the cross border barrel and lags, have operated
for the weaving of the eross border.
According to this my invention, I construct the needles, so that each needle,
serves to operate an upper, and a lower draw hook, a head being formed at the
upper end of the needle, and on which head, the top draw hook rests, and
extending from the side of each needle, is a lug or projection, on which the lower
draw hook is received, the foot of the needle is split or forked and spans the
needle lever.
The draw hooks are formed of wire, and are - shaped-the lower leg
terminating in a hook which is caused to engage with the draw bars as required
the end of the upper leg serves by a cross bar connected to the draw bar to force
back the said hook (or any "lagging" hook).
The heald levers consist of a bell cranked lever having a finger piece near its
fulcrum and which with a like piece on the end of a second and horizontal lever
forms a joint thus two arms of the two levers extend in opposite directions
horizontally and to which the cords of the healds are attached and a direct lift
is obtained the upper arm of the bell crank lever has two buttons on the studs or
necks of which the loop of the ☐ draw bars are received and which forms the
connection between the draw hooks and the heald levers.
The lag and peg for operating the dobby when weaving cross patterns or borders
is operated by double catches having alternate motion a second lag and peg barrel
under control of the jack levers being employed for operating the dobby for
weaving the selvage patterns and for the body of the piece.
WALTER BRIERLEY,
Agent for the Applicant.

page_text: "
I FRANCIS WILLIAM JEPSON, of N° 25 Cromwell Terrace, Blackburn, in the
County of Lancaster, Mill Manager, do hereby declare the nature of my said
invention for "IMPROVEMENTS IN DOBBIES 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 dobbies comprise improved construction of needles, hooks,
and levers for actuating the heald cords, also to duplicate peg lag barrel operated
from the jack levers for weaving the selvage borders and body of the piece the
said barrel being employed when the cross border barrel and lags have operated
for the weaving of the cross border.
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 a dobby having my improvements applied thereto.
Fig. 2 is a longitudinal section of Fig. 1.
According to this my invention the needles 1, 1, operate the upper and lower
draw hooks 4, 5, a head being formed at the upper end of the needles and on.
which head the draw hooks rest, and extending from the side of each needle is
a lug or projection.
The draw hooks 4, 5, are formed of wire and are ☐ shaped, the lower leg of
each terminating in a hook which is caused to engage with its draw bars 2, or 3,
as required, the end of the upper leg of each draw hook serves by a cross bar 6
connected to each draw bar 2, 3, to force back the said hook (or any "lagging"
hook).
The heald levers 7, 8, consist of a bell cranked lever 8 having a finger piece 9
near its fulcrum 10 and which with a like piece 9ª on the end of the horizontal
lever 7 gears or forms a joint, thus two arms of the two levers 7, 8, extend in
opposite directions horizontally and to which the cords 11, 12, of the healds are
attached and a direct lift is obtained, the upper arm of the bell crank lever 8 has
two buttons, 13, 14, on the studs or necks of which the loop of the ☐ draw
hooks 4, 5, are received and which form the connection between the draw hooks
and the heald levers-At 15 is the peg and pattern mechanism as ordinary-At 16
is the framing of the dobby-17 and 18 being the ordinary rocking T levers and
connections for operating the draw bars 2, 3, as well understood.

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 draw hooks 4, 5, constructed as, and in combination with the draw
bars 2, 3, as illustrated and herein described.
2. The draw bars 2, 3, draw hooks 4, 5, in combination with the levers 7, 8, and
operated by the levers and connections 17, 18, as herein fully described, and
illustrated by the annexed drawings.