Improvements in Loom Pattern Chains.
Year: 1895

page_text: PORONAD SI MUITIVATION.
Improvements in Loom Pattern Chains.
We, WILLIAM ARTHUR CRABTREE and DAVID CRABTREE both of Windhill,
Shipley in the County of York, Machine Makers, do hereby declare the nature of
this invention to be as follows, that is to say :-
It relates to improvements in loom pattern-chains of the class for which we
applied for Letters Patent bearing date May 29th 1894 and numbered 10380,
and our present improvements consist of forming the pattern-lags in such a manner
that they are rendered stronger and better adapted for withstanding certain of the
forces that set upon them, than they are when formed as heretofore.
:
In accordance with one of our improvements the inclined lateral slots are made
in the lag on both sides of the longitudinal slot and in such a manner that they
occupy alternate positions the lateral slots on one side being opposite the spaces
intervening between those on the other side, thus extra strength is given to these
intervening spaces by reason of the quantity cut away being taken from both sides
instead of all from one side of said slot.
The other improvement consists of forming the lateral slots at about right
angles to the longitudinal slots for a certain portion of their length, the remainder
of their said length being again at about right angles to the other part thus this
latter part is about parallel with the longitudinal slot. By making use of this
formation of slot we are enabled to utilize those of said pegs which are in-operative
so far as regards indicating upon the heald operating mechanism and which are
turned down into these lateral slots and beneath the overhanging parts thereof, as
stay pieces for the whole lag.
At one end of the lag we place a spring which presses the pegs and their
spacing pieces against the other end in which we mount the locking piece so that
when such locking piece is moved to release the pegs these are moved by the spring
into position for being turned or having their positions changed whether such
change is from their erect to their recumbent positions or vice versa, on which by
the locking piece being turned into position its actions ou an incline formed in the
lag cause all the pegs to move into their respective positions and on arriving a
notch retains then there as desired.
The parts, fixed to the lags for the coupling links, which join them together to
form the pattern chain, to take into, are preferably formed of bent wire or, are
stamped out of sheet metal, while their attachment to the lag is effected by notches
being cut crosswise in the ends of said lag into which they are placed and secured
by a sheet metal cap being placed thereon and fixed thereto by soldering, rivetting
or otherwise.
.
Or again holes may be formed in the ends of the lags and bent wire holders may
be used as is well understood, or this holder may be a simple link passing through
both the cap and the lag while the ring or intermediate coupling link will then
hold the lot together, or instead of one piece of wire forming hooks on both sides.
of the lag, two separate hooks may be inserted therein by an appropriately formed
1.
::

page_text: but being placed within for them to be screwed into. This out and its screwed
books being made to secure the cap or covering for the end of the lag.
Dated this 11th day of April 1895.
W. A. CRABTREE,
D. CRABTREE,
Per Samuel Hey,
Agent.
We, WILLIAM Arthur CrabtrEE and DAVID CRABTREE both of Windhill,
Shipley in the County of York, Machine Makers, 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, that is to say :-
It relates to improvements in loom pattern-chains of the class for which we
applied for Letters Patent which application bears date May 29th 1894 and
number 10380, and our present improvements consist of forming the pattern-lags
in such a manner that they are rendered stronger and better adapted for with-
standing certain of the forces that act upon them, than they are when formed as
heretofore.
C
In order that our said invention may be more readily understood we have
hereunto appended a sheet of drawings illustrative thereof to which by letters and
figures reference is made in the following description.
Fig. 1 is a top view illustrating the body part of a lag made in accordance with
our invention.
Figs. 2, 3, and 4 are respectively side, top and sectional end views of our improved
lag with the pattern pegs arranged within it in their several positions as when
in effective operation in the loom.
Fig. 5 is a sectional side view of the lag with all the pegs in their crect.
positions.
Fig. 6 is end elevation of the lag and illustrates a method of attaching the
coupling parts thereto so that the lags may be coupled together to form a pattern
chain.
Figs. 7 and 8 are top and end views of the body part forming the lag.
Fig. 9 illustrates a modified shape of peg that might be used in connection with
our improved lag as hereinafter explained.
Fig. 10 is a similar view to Fig. 6 but shows another method of attaching the
coupling links or parts to the lags.
In accordance with one of our improvements the inclined slots e are made in
the lag a on both sides of the longitudinal slot band in such a manner that they
occupy alternate positions, the lateral slots e on one side being opposite the
spaces e intervening between the slots on the other side, thus extra strength is
given to these spacing parts e¹ by reason of the portion cut away being taken
from both sides instead of from only one side of the slot b.
The other improvement consists of forming the lateral slots p at about right]
angles to the longitudinal slot 6 for a certain portion of their length the remainder
of their said length being again formed at about right angles to the other part
thus this latter is about parallel with the slot b and the slots p are in this
manner somewhat shaped. By making use of this formation of slot p we are
enabled to utilize those pegs d of the pegs d which are inoperative so far as
regards indicating upon the heald operating mechanism and which are turned down
into these slots p and beneath the overhanging parts pl, as stay pieces or supports
for the lag a when in position on the pattern cylinder.

page_text: At one end of the lag a we place a spring which presses the pegs d and their
spacing pieces c against the other end in which we mount the locking piece f so
that when such locking piece f is moved to release the pegs d as it is when in the
position shown by Fig. 5, these pegs d are moved by the spring into position for
being turned or having their positions changed whether such change is from their
erect to their recumbent positions or vice versa, on which by the locking piece
being turned down into the position shown by Figs. 2 and 3 its actions on the
inclines formed on the lag a cause all the pegs d to move into their respective
positions shown by said Figs. 2 and 3, and on the locking piece farriving this.
position its handle part enters a notch or recess s¹ which retains or holds it as
desired.
The parts or links fixed to the lags a for the ordinary links u to take into, to.
form the lags a into a pattern chain, are preferably of the shape shown by Fig. 6.
of which shape they are made by being bent out of wire or stamped out of sheet
metal, while their attachment to the lag a is effected by slots being made therein
as also in or through the cap v which latter is held in position by the link t passing
through it and the lag a. The said link being in turn held by the ordinary link u
in one direction and by its shoulder part t in the other direction.
Or again holes may be formed in the ends of the lags a and ordinary bent wire.
holders may be inserted in the same manner and shape as are used in connection
with the ordinary wooden lags at present in use, or instead of one piece of wire
forming hooks on both sides of the lag a as last before described two separate
hooks wo wo (see Fig. 10) may be inserted therein by an appropriately formed nutr
being placed within for these hooks w w¹ to be screwed into, and this nut & with.
its hooks w w¹ may also be used for holding the cap in position as does the
link t.
When our improved lag is to be used in connection with heald operating.
mechanism requiring considerable power to put it into action, we form the pegs d
of the shape shown at Fig. 9 by which means and by reason of a cam surface
being thus formed on said pegs they are better prepared for performing their
functions, while their said shape or formation does not in any way interfere with.
their use in connection with our improved formation of lag.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we.
claim is ;-
1. In loom pattern chains the employment of peg-lags formed and constructed
substantially as herein specified.
2. Loom pattern chains made up or consisting of a series of peg-lags formed.
and constructed substantially as set forth.
3. In loom pattern chains, peg-lags having longitudinal and lateral slots formed.
therein substantially as and for the purposes specified.
4. In peg-lags for forming loom pattern chains, the combination of a body part
having a longitudinal and lateral slots formed therein said lateral slots being
arranged relatively with each other and said longitudinal slot as described, a
locking piece and a spring for moving and holding the pegs within the body part.
ubstantially as herein set forth.
Dated this 11th day of January 1896.
vauuary 1600.
W. A. CRABTREE,
D. CRABTREE,
Per Samuel Hey,
Keighley, Agent..