Year: 1887

page_text: I, CHRISTOPHER CATLOW of 22 Clifton Street, Burnley, in County of Lancaster,
Overlooker, do hereby declare the nature of this invention to be as follows:-
This invention relates to the class of dobbies wherein tumbler or counter-balanced
levers are employed in combination with pattern pegs, and the object of the invention
is to relieve the said pegs from the work of lifting the said levers so as to avoid the
wear and breakage of pegs, also to improved mechanism for regulating the stroke of
the pawl or catch which operates or turns the peg barrel.
In the construction of apparatus for purpose aforesaid according to this my said
invention, I apply to the tappet shaft or other revolving part of the loom a tappet
which acts upon an anti-friction bowl carried by end of a rocking lever, the latter is
by rod connected to the end of a horizontal lever, the other end of the latter extends
under the heavy or counterbalanced ends of the tumbler levers and has a cross bar or
rod so as to lift all the said levers.
As the tappet revolves, its throw depresses the lever first referred to and by the con-
necting rod pulls down the end of the horizontal lever the other end of which and its
cross rod lifts the whole of the tumbler levers so that the pattern barrel or lags and
pegs are free to turn without there being any rubbing or contact between the pegs and
the tumbler levers, the latter being simply dropped or lowered down to the top of the
pegs so that the pegs are practically relieved from work and wear further than as
mere supports for the tumbler levers.
For regulating and determining what portion of the whole movement of the pawl
catch which operates or turns the peg barrel, employ in combination with the lever
and pawl or catch, a bearer adjustable in a slot of the lever and in contact with the
underside of the pawl or catch, so that the catch can be set so as to keep in contact
with the catch wheel of the barrel, the whole or only a part of its movement, thereby
to turn the peg barrel more or less according to requirements.
WALTER BRIERLEY,
Town Hall Buildings, Halifax,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Dobbies of Looms for Weaving.
I CHRISTOPHER CATLOW of 22 Clifton Street, Burnley in the County of
Lancaster, Overlooker 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 the class of dobbies wherein tumbler or counterbalanced
levers are employed in combination with pattern pegs, and the object of the invention
is to relieve the said pegs from the work of lifting the said levers so as to avoid the
wear and breakage of pegs, also to improved mechanism for regulating the stroke of
the pawl or catch which operates or turns the peg barrel.
In the construction of apparatus for purpose aforesaid according to this my said
invention I apply to the tappet shaft or other revolving part of the loom a tappet which
acts upon an anti-friction bowl connected by end of a rocking lever, the latter is by rod
connected to the end of a horizontal lever the other end of the latter extends under
the heavy or counterbalanced ends of the tumbler levers, and has a cross bar, or rod
so as to lift all the said levers by tappet and connections as described.
As the tappet revolves, its throw depresses the lever first referred to and by the con-
necting rod pulls down the end of the horizontal lever, the other end of which and
its cross rod lifts the whole of the tumbler levers so that the lags are free to turn with-
out there being any rubbing or contact between the pegs and the tumbler levers, the
latter being simply dropped or lowered down to the top of the pegs so that the pegs
are practically relieved from work and wear further than as mere supports for the
tumbler levers.
For regulating and determining what portion of the whole movement of the pawl
or catch which operates or turns the peg barrel shall be effective, I employ in com-
himation with the lever and pawl or catch a bearer adjustable in a slot of the lever
or in the frame of the dobby and in contact with the underside of the pawl or catch,
so that the catch can be set so as to keep in contact with the catch wheel of the barrel,
the whole or only a part of its movement, thereby to turn the peg barrel more or less
according to requirements.
"
Such being the nature and object of this my Invention, the following is a complete
description of same, reference being had to the accompanying drawings, which form
part of this Specification in which
Fig. 1 is an end view of dobby, tumbler levers, and lattice, and pegs, operated
from the tappet shaft.
Fig. 2 is a side view of Fig. 1.
Fig. 3 is an enlarged view of part of Fig. 1.
Fig. 5 is a side elevation, enlarged scale, of the parts shewn by Fig. 3, but operated
from the ordinary rocking lever.
Fig. 4 is a side elevation, shewing appliances for operating the peg barrel.
At 1 is the tappet shaft, on which is the tappet 2. acting on the bowl 3. on end of
rocking lever 4. imparting by rod 5. motion to the lover 6. the latter being mounted

page_text: loosely on the cross shaft 6* which passes through the tumbler levers 6b the pendant
arms 7 of the levers 6, has a cross piece 9, extending under the tumbler levers 6b, so
that when the tappet 2, is down, or at its greatest throw, the bar 9, lifts the whole of
tumbler levers, clear of the pegs 12, and the said pegs and the lattico 11, can be moved
round without resistance from the tumbler levers the forward movement of the
tappet 2, lowers such of the tumbler levers, as are not supported by a peg. At Fig. 5
the motion for operating the parts 6. 7. 8. 9 is taken from the ordinary T rocking
lever 13 instead of taking the motion from the tappet shaft hy the rod 5, as illustrated
on Figs. 1. 2. 3 the lug I carries the strut 2. on end of which is the runner 3, the
movement of the T lever imparts movement to the runner 3. against the part 4,
bolted to the lever 6 its other end 7 turning on the cross shaft 6" on which are loosely
mounted the tumbler levers 6 the cross bar 9 cast to the lever 7 and extending under
the whole of the tumbler levers 6b lifts the latter up and clear of the pegs 12, whilst
the
pegs 12 and lags 11, are being turned, meanwhile the head of the set screw 20
will have come in contact with the lug 21 and lifted the lever 2 that the runner 3 will
be brought to the level of the top 22 of lever 6, whereon the lever 6 will swing forward
under the runner 3 by turning on the shaft G bring the cross rod 9 down, and per-
mitting any of the tumbler levers 6b not supported by a peg to fall, the next movement
of the T lever will return the parts to the position shewn by the drawing.
For regulating and determining what portion of the whole movement of the pawl
or catch operates or turns the peg barrel I employ in combination with the lever 13
and pawl or catch 14 a bearer 15 adjustablo in a slot of the frame of the dobby 16 and
in contact with the underside of the pawl or catch 14, that the catch can be set by its
nut and slot 17 in contact with the catch wheel 18 of the barrel 19 the whole or only
a part of its movement, thereby to turn the peg barrel 19 more or less according to
requirements.
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
1. The parts 6. 7 and 9 operated by rod 5 and tappet 2 for raising and lowering
the tumbler levers all in combination and as illustrated by Figs. 2 and 3 of the annexed
drawings.
2. The parts 6. 7. 9 operated by the T lever 13 and parts 1. 2. 3 for raising and
lowering the tumbler levers all in combination and as illustrated by Fig. 5 of the
annexed drawings.
3. The lever 13 pawl or catch 14 bearers 15 combined with and for operating
the catch wheel 18 and peg barrel 19 as described and illustrated by annexed
drawings.
1000