Improvements in Pattern Surfaces for Looms.
Year: 1890

page_text: Date of Application, 11th Dec., 1890
Complete Specification Left, 10th Sept., 1891-Accepted, 24th Oct., 1891
PROVISIONAL SPECIFICATION.
Improvements in Pattern Surfaces for Looms.
I, JOSEPH ROBINSON, of Greenend Place, Clayton near Bradford, in the County
of York, Greengrocer, do hereby declare the nature of this invention to be as
follows:-
The object of this invention is to secure pattern pegs in the. lags used on
"Dobby" and "Witch" machine cylinders in such a manner that, they will not
shake out or become loose in the lag and thereby derange the design or figure on
the fabric being woven, and thus by these means to require less attention on the
part of the attendant than is the case when the pegs are secured in the usual
manner.
I accomplish my object by forming the pegs either with a shoulder or collar at
some distance from one end, or by making a portion of the pegs larger in diameter
than the remainder.
The pegs are driven into the lags and by means of plates having corresponding
holes therein each series of pegs are secured to the respective lags by a plate
attached thereto, the plates pressing upon the shoulders collars or on the enlarged
diameter, prevent the pegs leaving the lags so long as the same are secured thereto
by the plates.
Dated this 10th day of December 1890
JOHN WAUgh,
A cent
COMPLETE SPECIFICATION.
Improvements in Pattern Surfaces for Looms.
I, JOSEPH ROBINSON, of Greenend Place, Clayton, near Bradford, in the County
of York, Greengrocer, 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 :-
The object of this invention is to secure pattern pegs in the lags used on Dobby
and other pattern surface machine cylinders in such a manner that, the pattern
surface pins or pegs will not become loose and shake out of the lag and thereby
derange the design or figure on the fabric being woven.
In the accompanying drawings
Fig. 1. represents a plan of an ordinary pattern surface lag suitable for Dobby
and other pattern surface machines.
Fig. 2. a view of a cover plate.
Fig. 3. a side view of a pattern surface lag with some of the pegs secured in
position.
Fig. 4. a section through a lag and
Fig. 5. elevations of pegs suitable for my improved mode of fastening.
In carrying out my object, the pattern surface pegs A. may be formed either
with a collar at B. some distance from the end, or by making a portion of the pegs
larger in diameter as at C. or by making them of the same diameter throughout and
cutting a groove therein as at D. in every case the pegs A. are driven into the
holes E. of the pattern bars or lags F. and secured therein by a plate G.
This plate is prepared with holes H. cut in a corresponding position to those in
the lag F. and of a configuration as shown by Fig. 2. one portion of each hole being
of such diameter as to allow the bottom portion of the pegs or collar to pass through
same for inserting the end of pegs A. into the holes E. of lag F.

page_text: The plates G. are secured to the respective pattern bars or lags F. by screws K.
in such a manner that the plates G. can be slid longitudinally thereon, and on
placing the pegs A. in the holes of the lags in the position as required by the pattern
of the fabric, they are secured therein by moving the respective plates G. in the
direction of the arrow, so that the narrow portion of the holes at E¹ pass over the
collar B. or over the shoulder formed by the thick portion of the pegs at C. or
the narrow portion of the holes enter the grooves D. cut in the pegs, thus by using
pegs constructed in the manner described in combination with a sliding plate G.
they are effectually secured in the pattern surface lags in the position required.
Having now, particularly described and ascertained the nature of this invention,
and in what manner the same is to be performed, I declare that what I claim is :-
A pattern lag F. provided with a number of holes E. combined with a plate G.
having corresponding holes cut therein by which the pattern surface pegs A. are
secured in the respective holes substantially in the manner as shown and described.
Dated this 9th day of September 1891.
JOHN WAUGH,
Agent.