An Improvement in Pegs and Lags for Operating the Catches of Loom Dobbies or Shedding Motions.
Year: 1889

page_text: Date of Application, 9th Oct., 1889
Complete Specification Left, 26th June, 1890-Accepted, 4th Oct., 1890
PROVISIONAL SPECIFICATION.
An Improvement in Pegs and Lags for Operating the Catches of
Loom Dobbies or Shedding Motions.
I, JAMES THOMAS LISHMAN of 1 Chellow Mount, Allerton, Bradford in the County
of York, Worsted Manufacturer, do hereby declare the nature of this invention to
be as follows:-
Hitherto it has been customary to make the pegs either straight or with a screw or
spring end, so that after they have been driven into the lags, they have been supposed
by that means to keep in the lags during weaving, but that has not proved correct,
for they constantly work out during the process of weaving, and therefore spoil the
pattern: Now I propose to have a peg made as Fig. 1 with a small groove turned
near the bottom of same, thus forming a kind of button-head; and the ordinary form
of lag has no groove in but I propose to have one made with a narrow groove cut the
entire length on the back as Fig. 4, in the centre, thus cutting down on half of each
row of holes which are bored in the lags to receive the pegs: And after the pegs are
put in to suit the pattern, I insert a piece of wire between the two rows of pegs in
the groove over the button-head as plan shewn at Fig. 3, which prevents the pegs
from falling out. (The button-heads being so large as to keep the wire from falling
down, and therefore it is obliged to remain in the groove), and as long as it is there
the pegs cannot possibly fall out.
Fig. 2. shows section of lag, with wire resting in the groove above button-head
on peg.
The peg may be made of wood or metal, as also the lag, and can be made any
size to suit the various "shedding motions" and "dobbies" used in weaving.
JAMES THOMAS LISHMAN,
1, Chellow Mount, Allerton, Bradford, Yorks.
COMPLETE SPECIFICATION.
An Improvement in Pegs and Lags for Operating the Catches of
Loom Dobbies or Shedding Motions.
I, JAMES THOMAS LISHMAN of 1 Chellow Mount, Allerton, Bradford, in the County
of York, Worsted Manufacturer, 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 more particularly to the construction of pegs and lags, used
as a pattern surface in looms for weaving, to determine or control the order of motion
of healds, harness, and shuttle-boxes; and is designed to more securely fix the pegs
to the lags than is at present effected, so as to prevent the possibility of the pegs
leaving the pattern-surface and spoiling the design or figure in the fabric.
The lags are usually connected together to form an endless chain, which is mounted
on a moving cylinder.. Each lag is perforated with one or two rows of holes,
provided with pegs in accordance with the pattern required.
In the accompanying drawings
Figs. 1 and 2 are respectively side and end elevations of a lattice lag pierced with
two rows of holes, one row slightly in advance of the other, into which pegs of a
novel construction are inserted and collectively secured by means of a pin or
tongue, which passes lengthwise of the lag between the two rows of pegs.
Fig. 3 is a plan of the underside of the lag, in which is formed a narrow channel
for the reception of the pin or tongue.

page_text: Fig. 4 is an end view in section of the lag.
Fig. 5 is a similar view to Fig. 3; and
Fig. 6 to Fig. 2 with the exception that only one row of pegs is represented as
collectively secured.
The pegs A are shouldered down as at B to form shank D, having an annular
groove D1, terminating in a small head D2. When the pegs have been inserted in
the holes of the lag E, in the order required for the pattern, they may then be
collectively secured by the tongue or sliding pin C, which is passed forward above
the heads D2 and along the series of annular spaces or grooves D₁ of the peg shanks,
the tongue or sliding pin being then sunk in the narrow channel F, so as not to
project below the under-surface of the lag.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
The manufacture and use of pegs and lags so adapted, that one or more rows or
series of pegs may be collectively secured to their individual lags, substantially as
.described and illustrated.
Dated this 95th do of T
1800
THOS. RICHMOND,
Agent.