New or Improved Method of Drafting Patterns for Dobbies of Looms for Weaving.
Year: 1899

page_text: Date of Application, 13th Jan.,
02-10and 1000
1899
Araratad
alth Ont
1800
PROVISIONAL SPECIFICATION.
New or Improved Method of Drafting Patterns for Dobbies of Looms
for Weaving.
I, FREDERICK HELLIWELL, of 8, Merton Street, Nelson, in the County of Lan-
caster, Weaver, do hereby declare the nature of this invention to be as follows:-
This invention relates to a new or improved method or system of drafting
patterns for dobbies of looms for weaving with the object of considerably increas-
ing the range of such patterns, and so as to obtain practically a limited jacquard
pattern or figure in a dobby loom instead of the particular design being crippled
to the number of lifts or staves of the dobby, and then being repeated as at
present. According to my invention, ere a repeat takes place in the pattern, the
same is made to extend over a larger area than the scope of the lifts and I effect
this by the manner in which I draw in the warp threads through the particular
staves, and the pegging of the pattern surface to correspond.
To give a clearer conception of my invention I have annexed a drawing, which
represents a point paper drafted according to my invention for a sixteen stave
dobby. In the pattern therein represented, it will be seen that the ends are
drawn in as follows, viz. 1 2 3, 2 3 4, 3 4 5, 4 5 6, 5 6 7, 678, and so on, the
pattern extending over a range of eighty two warp threads.
T
1000
New or Improved Method of Drafting Patterns for Dobbies of Looms
for Weaving.
I, FREDERICK HELLIWELL, of 8, Merton Street, Nelson, in the County of Lan-
caster, Weaver, do hereby declare the nature of this invention, and in what
manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
This invention relates to a new or improved method or system of drafting
patterns for dobbies of looms for weaving with the object of considerably increas-
ing the range of such patterns, and so as to obtain practically a limited jacquard
pattern or figure in a dobby loom instead of the particular design being crippled
to the number of lifts or staves of the dobby, and then being repeated as at
present. According to my invention, ere a repeat takes place in the pattern, the

page_text: same is made to extend over a larger area than the scope of the lifts and I effect
this by the manner in which I draw in the warp threads through the particular
staves, and the pegging of the pattern surface to correspond.
To give a clearer conception of my invention, I refer to the drawing annexed
to my Provisional Specification, which represents a point paper drafted according
to my invention for a sixteen stave dobby. In the pattern therein represented,
it will be seen that the ends are drawn in as follows, viz., 1 2 3, 2 3 4, 3 4 5,
4 5 6, 5 6 7, 67 8, and so on, the pattern extending over a range of eighty two
warp threads.
The healds are preferably so knitted as to correspond with the drafting of
the pattern and the pegging of the pattern surface, so that there are not a
number of unused heald bands in the way of or obstructing the others.
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 new or improved method or system of drafting patterns for dobbies
of looms for weaving, substantially as described, and illustrated.
2. The combination for use in a dobby loom of the new or improved method
or system of drafting patterns, and the pegging of the pattern surface, and
knitting of the healds to correspond, substantially as described and set forth.
Dated this 22nd day of September 1899.
RICHMOND & Co.,
Chartered Patent Agents, 12, Standish Street, Burnley.