Improvements in or relating to Loom Pattern Mechanisms.
Year: 1890

page_text: Date of Application, 10th Jan., 1890
Complete Specification Left, 8th Oct., 1890-Accepted, 8th Nov., 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Loom Pattern Mechanisms.
We, RICHARD LONGDEN HATTERSLEY of Keighley in the County of York, Machine
Maker, and JAMES HILL of the same place, Manager, do hereby declare the nature
of this invention to be as follows, that is to say :-
"
It relates firstly to improvements in shedding mechanisms of the class known
as Hattersley's. "positive or non-positive" dobbies, and consists of operating
their pattern mechanisms in such a manner that without increasing or altering
the lateral space occupied by the heald operating levers and their cooperative
parts in said dobbies, the pattern surfaces or peg-lags as also the pegs used in
connection therewith may be considerably increased in strength and size thus enhancing
the efficiency of said pattern surfaces.
The second part of our invention relates to improvements in the pattern cylinders
and their operating mechanisms used in connection with dobbies or shedding
mechanisms when portions of these said dobbies or shedding mechanisms are employed
for controlling or governing the picking and shuttle-box operating mechanisins of
the looms to which they are applied, and consists of so arranging and constructing
the said pattern cylinders and their operating mechanisms, that when fabrics or
cloths to be woven are of designs requiring long series of changes (before being
repeated) in the weft portion, while the treading of the warp portion of said designs is
very short and only requires a short series of changes, the necessary number of peg-
lags or pattern cards for producing these designs is considerably diminished.
The first part of our invention is attained by imparting motion to the pattern
cylinder used in connection with the class of dobbies described in such a manner
that for each movement of each draw bar used in connection with each of said
dobbies, a separate lag with its indicating pegs is brought into operation, or in other
words the said pattern cylinder is operated or moved the space of one lag to
indicate for each opening to be made in the warp. In connection with the cylinder
thus operated peg-lags are employed each having only one row or series of pegs to
effect changes in the positions of or to indicate upon one or the other of the upper
or lower series of catches mounted upon the upper or lower extremities of the swing
bars used in said dobbies, in the well known manner.
By each of said peg-lags only carrying a single series of pegs, these pegs may be
increased in size (diametrically) to the extent that each peg may occupy the lateral
space of two catches, one a top catch the other a bottom catch in the series of
top and bottom catches hereinbefore described.
To enable the use of pegs of the dimensions described, either the indicating levers
or feelers may be double, that is one for each top as well as bottom catch, and thus
each one of these pegs may indicate upon and operate two of these levers or feelers
the one being to produce an effective result on account of the draw-bar, which
operates the catch that said feeler thus moves, being in position to receive same,
while the other feeler will produce no more of a result than to lower its catch into
the path of motion of its draw-bar which at this time is not in position to receive
same, or instead of these feelers being double only one may be employed for
operating both a top and bottom catch, in this case said catches are bent or cranked
or so formed that when one is in connection with its draw-bar and is moved out of its
normal position, its cranked part allows the movement of its feeler for effecting the
desired movement in the other catch.
To impart motion to the pattern cylinder at the desired rate of speed as above
described, crown wheel and nogging arrangements of mechanisms may be employed,
or two ratchets may be mounted upon an operating lever in such a manner that by

page_text: say the forward movement of this lever the cylinder is moved by one of these ratchets
the desired distance so also is it moved by the other ratchet the desired distance and
in the same direction by the backward movement of the operating lever.
The second part of our invention is attained by mounting the pattern cylinder
employed for controlling or governing the box operating and picking mechanisms
(which we will hereinafter style the secondary cylinder) so as to revolve loosely upon,
and independently of, the shaft of the pattern cylinder used for controlling the
movements of the healds and which we hereinafter will style the primary pattern
cylinder.
Intermittent rotary motion is imparted to the primary cylinder at the usual rate
of speed by means of crown wheel and nogging mechanisms somewhat as described
in our Specification No. 8109 of 1885, however instead of this rate of speed being
imparted to the secondary cylinder said secondary cylinder is only rotated at one
half, one quarter or one eighth etc., the said rate of speed, this being effected by
suitably formed intermediate gearing wheels being employed, one of these gearing
wheels being detachable and answering the purposes of a change wheel. This change
wheel is, by the peculiarity of the movement desired to be obtained viz. intermittent
rotary, allowed or permitted to have only a desired number of teeth in it to effect
the said desired movement' of the wheel imparting motion to the secondary cylinder
and at the desired rate of speed so that suppose that its full complement of teeth
was eight and that in reality it had only one of them, the wheel that this one tooth
operated would be only moved at one eighth the rate of speed at which said change
wheel moved, and in like manner other rates of speeds might be obtained.
Suitable adjusting mechanism such as star-wheel and spring lever arrangements
are employed for adjusting the primary as also the secondary cylinders.
When the hereinbefore described cylinder mechanisms are used in connection with
the arrangement of needles for operating the draw catches as is described in our
Specification No. 295 of 1885, instead of only one of such needles and its operating
lever being used for both the top and bottom catches for governing the movements
of the picking mechanism two of said needles and their levers are employed one of
each for the bottom and one of each for the top catches, by which means the picking
mechanism is kept in unison or concert with the box operating mechanism.
Dated this 9th day of January 1890.
RICHD. L. HATTERSLEY.
JAMES HILL.
Per Samuel Hey,
Agent
COMPLETE SPECIFICATION.
Improvements in or relating to Loom Pattern Mechanisms.
We RICHARD LONGDEN HATTERSLEY of Keighley in the County of York Machine
Maker, and JAMES HILL of the same place Manager, 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 firstly to improvements in shedding mechanisms of the class known as
Hattersley's "positive or "non-positive" dobbies, and consists of operating their
pattern mechanisins in such a manner that without increasing or altering the lateral
space occupied by the heald operating levers and their co-operative parts in said
dobbies, the pattern surfaces or peg-lags as also the pegs used in connection therewith
'may be considerably increased in strength and size thus enhancing the efficiency of
said pattern surfaces.
The second part of our invention relates to improvements in the pattern cylinders
and their operating mechanisms used in connection with dobbies or shedding
mechanisms when portions of these said dobbies or shedding mechanisms are employed
for controlling or governing the picking and shuttle-box operating mechanisms of the
looms to which they are applied, and consists of so arranging and constructing the

page_text: said pattern cylinders and their operating mechanisins that when fabrics or cloths to
be woven are of designs requiring long series of changes (before being repeated) in
the weft portion while the treading of the warp portion of said designs is very short
and only requires a short series of changes, the necessary number of peg-lags or
pattern cards for producing these designs is considerably diminished.
The accompanying sheets of drawings are illustrative of this our said invention and
are referred to, by letters and figures, in the following description.
Fig. 1 is a side sectional elevation of a dobby, of the Hattersley "non-positive"
type, shewing the application thereto of the first part of our invention, from which it
will readily he understood how same may be applied to a dobby of the "positive"
type, since the parts forming the differences in this respect are not interfered with in
any way by the said application of our invention.
Fig. 2 is side elevation of a similar dobby to that illustrated by Fig. 1.
Fig. 3 is top view of dobby shewn by Figs. 1 and 2.
Fig. 4 is end elevation of a portion of a dobby shewing a modification of our
invention.
Figs. 5 and 6 are drawings of parts in detail, hereinafter described.
Fig. 8 is side elevation of a portion of a dobby illustrating the application of the
second part of our invention.
Fig. 9 is top view of parts shewn by Fig. 8.
Figs. 10 and 11 are drawings in detail of parts hereinafter referred to.
Like letters and figures of reference indicate like parts throughout the several
views.
The object of the first part of our invention is attained by imparting motion to the
pattern cylinder a used in connection with the class or type of dobbies described, in
such a manner that for each movement of each draw-bar 6 or 61, used in connection
with said dobbies (whether of the non-positive or of the positive type), a separate lag c
with its indicating pegs d, is brought into operation or in other words the said pattern
cylinder a is operated or moved the space of one lag e to indicate for each separate
opening to be made in the warp. In connection with the cylinder a thus operated
peg-lags c are employed each having only one row or series of pegs d to effect changes
in the positions of or to indicate upon one or the other of the upper or lower series of
catches e or el mounted upon the upper and lower extremities of the swing bars f used
in said dobbies, in the manner common and well known.
By each of said peg-lags c only carrying a single series of pegs d (thus avoiding the
weakening effect on these lags c by cutting two rows of holes therein to enable them
to be used in connection with the class of dobby described) these may be increased in
size (diametrically) to the extent that each peg d may occupy the lateral space of two
catches, one a top catch e the other a bottom catch e¹ as shewn.
To enable the use of pegs d of the dimensions described, either the indicating levers
(or feelers) g g¹ may be double as shewn by Fig. 4 (that is one lever or feeler g for
each top catch e, as also one lever or feeler g¹ for each bottom catch el as is at present
the case) and thus each peg may indicate upon and operate two of these feelers g g',
the one, either g or gl being to produce an effective result on account of the draw-
bar bor 1, which operates the catch e or e¹ that said feeler g or g¹ thus moves (through
the medium of its needle h or ¹) being in position to receive same, while the other
feeler will produce no more of a result than to lower its catch into the path of motion
of its respective draw-bar, which at this time is not in position to receive same, or
instead of these feelers 9 g¹ being double, only one feeler g² may be employed for
operating both a top and bottom catch e and e¹, (in the one case through the medium
of the needle or lifting bar h that rests upon the part 93 of the feeler g² and in the other
case the bent or upwardly projecting end g* of said feeler) in this case said catches e
and e' are bent or cranked at e³ or otherwise so formed that when one catch say e is in
connection with its draw-bar b and is moved out of its normal position, its cranked
part allows the movement of its feeler g³ for effecting the desired movement in the
other catch e¹.
To impart motion to the pattern cylinder a at the desired rate of speed as above

page_text: described, crown wheel and nogging arrangements of mechanisms such as are referred
to in connection with the second part of this invention, may be employed, or two
ratchets k and k¹ may be mounted upon an operating lever such as the lever l'in such
relative positions or on such peculiarly formed arms of said lever as is shewn, that by
the forward movement of this lever (as the one indicated by the arrow m) the ratchet
wheel n of the cylinder a is moved by the ratchet & the desired distance, so also is it
moved by the ratchet the desired distance and in the same direction by the back-
ward (or that contrary to the one indicated by said arrow m) movement of the said
lever l.
The object of the second part of our invention is attained by mounting the pattern
cylinder o employed for governing or controlling the box operating and picking
mechanisms (this cylinder o¹ being hereinafter styled the secondary cylinder) so as to
revolve loosely upon and independently of the shaft p upon which is rigidly mounted
in the usual manner the pattern cylinder o used for controlling the movements of the
healds, said cylinder o being hereinafter styled the primary pattern cylinder.
Intermittent rotary motion is imparted to the primary cylinder o at the usual rate
of speed by means of crown wheel and nogging mechanisms somewhat as is described
in our Specification No. 8109 of 1885, however instead of this rate of speed being
imparted to the secondary cylinder o' this cylinder o¹ is only rotated at one half, one
quarter, or one eighth etc., the said rate of speed, and this is effected by the employ-
ment of suitably formed intermediate gearing wheels and s, the wheel r being
detachable from its bearance or stud t thus answering the purposes of a change wheel.
As is shewn the wheel is rigidly attached or joined to the intermediate wheel u,
which is operated and moved and which imparts its said movements through the
wheel mounted upon the shaft p to the cylinder o, as is described in our Specification
No. 81098 above referred to, and by the peculiarity of the movement desired to be
obtained viz., intermittent rotary, said wheel r is allowed or permitted to have only
the necessary number of teeth in it (such as the two, 1 and 2, shewn by Fig. 10), to
effect the said desired movement of the wheels which imparts its movements to the
cylinder o by being mounted upon a barrel, bush or sleeve s¹ carrying said cylinder o¹,
so that, suppose that its (said wheel r) full complement of teeth was eight (as is really
the case in accordance with the drawings although this need not at all to be so but
may be varied as desired) and that in reality it had only two teeth as and, the
wheels that these two teeth operated would be only moved at one fourth the rate of
speed at which said wheel r moved, and in like manner by altering the number of the
teeth in this change wheel as by substituting others having different numbers, other
rates of speed might be obtained.
The star wheel w is attached to the wheel s or otherwise rigidly mounted upon the
barrel s¹ so that the lever a, operated or acted upon by the spring, may be employed
for adjusting the cylinder o¹ as will be well understood, while the other well known
arrangements may be utilized for adjusting the cylinder o.
When the cylinder mechanisms hereinbefore described as forming the second part
of our invention, are used in connection with the arrangement of needles for operating
the draw catches as is described in our Specification No. 2954 of 1885, instead of only
one of such needles and its operating lever being used for both the top and bottom
catches for governing the movements of the picking mechanism as is indicated by
the pattern surface of the present cylinder o¹, two of said needles and their levers are
employed one of each for the bottom and one of each for the top catches as is usual in
the common and well known arrangement of this class of dobby, by which means the
picking mechanism is kept in unison or concert with the box operating mechanism.
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. The method of operating the levers 9, g¹ in pairs by one peg or single pegs and
the means herein described for rotating the cylinder a at the proper rate of speed to
11

page_text: 2. The ratchets k, k¹ mounted upon the lever 1. as shewn, said lever / formed as
described, the wheel n the cylinder a, peg-lags c having only one row or series of
pegs d, the levers 92 formed as described for operating both the top and bottom series
of catches e and e¹, in combination all said parts being arranged to operate in the
manner and to the end substantially as specified.
3. The cylinders o and o', the bush s', the wheels
3, r, u
and the star wheel
v,
W,
the
lever and the spring æ in combination all these said parts being formed and arranged
C
to operate to effect the object herein specified.
Dated this 7th dow of October 1800.
RICHD. L. HATTERSLEY.
JAMES HILL.
Per Samuel Hey,
Agent.