Improvements in Apparatus for Operating Pattern Mechanism for Looms.
Year: 1888

page_text: Date of Application, 8th Aug., 1888
Complete specincation Left, 7th May, 1889-Accepted, 15th June, 18c9
Complete specification Left, 7th May, 1889-Accepted, 15th June, 18c9
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Operating Pattern Mechanism for
Looms.
I, JOSEPH PARKINSON, of Chester Street, Bradford, in the County of York,
Machine Maker, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in pattern regulating mechanism, in which
by certain combinations, the card pattern cylinder may be operated in such a manner
that, the number of pattern cards employed on machines of this class to regulate the
healds for weaving a design is greatly reduced: and consists in so constructing two
of the ordinary draw bars, that when either of their fallers is raised by the respective
needle, the draw bar in connection with the raised faller will operate a levor, and the
several catch arms and levers connected therewith, in a manner that, the card cylinder
is allowed to remain unturned.
By the operation of the other draw bar faller, another series of levers are actuated,
by which operation, the needles will remain in the same horizontal position in
relation to the card and cylinder; each card and flat on the cylinder having several
rows of holes.
Dated thi
1000
JNO. GILL,
Agent.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Operating Pattern Mechanism for
Looms.
I, JOSEPH PARKINSON, of Chester Street, Bradford, in the County of York,
Machine Maker, 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 improvements in pattern regulating mechanisin in which
by certain combinations of novel construction, the card pattern cylinder may be
operated in such a manner, that the number of pattern cards employed on machines
of this class to regulate the healds for weaving a design is considerably reduced; and
consists in so constructing two of the draw bars, that when either of their fallers are
not raised by the respective needles, the said draw bar will operate a lever and the
respective catcharms and levers connected therewith, so that the card cylinder will'
remain unturned; and by the non-operation of the other draw bar faller, another
series of levers is actuated, by which the needles will remain in the same horizontal
position in relation to the card cylinder. By raising the respective needles the
cylinder and needle grate are operated.
In the accompanying drawings Fig. 1. represents the side elevation partly in section
of a dobby or heald regulating machine with my novel combinations attached thereto;
the side plate being removed in order to show the interior.
Fig. 2. is a view of the opposite side.
Fig. 3. details of the pattern tappets.

page_text: The draws bars for operating the levers A. to which the healds are connected,
are not shown in the drawings, they being of the usual construction and actuated
by the oscillating levers B and reciprocating transverse draw knives . and C¹ in
the usual manner, to which no claim is made as forming part of this invention.
I mount by preference near to the side frame plate of the dobby, two draw bars D.
which are of the ordinary construction, with the exception of a swell D' being formed
on each; and immediately above those draw bars are mounted on fulcrum pins
secured to the frame plate A' two catch levers E. and F, the lever E. being in
connection with the turning mechanism of the card cylinder G, and the lever F.
with the apparatus for moving the needle frame N' and needles N. in a horizontal
direction.
The card cylinder G. may be covered with cards in the ordinary manner, and is
supported in slots formed in swinging levers H. secured on a shaft, one lover being
placed on each side of the apparatus: the card cylinder G. being turned one fourth
or any portion of a revolution in the usual manner every time it comes in contact
with the catch lever K; but in order that the said cylinder may remain unturned for
one or more picks as may be required by the design, the catch lever K. is operated
in the following mannor.
Whenever the card surface of the cylinder G. and needles N. allow the draw bar"
faller D to be in such position, that on the operation of the draw bar D. in the
direction so that on the swell-D coming in contact with the catch end of lever E. it
is raised; and by working on its fuleruui pin, the opposite end of the lever is lowered
in contact with an arm of lever J. thus operating the said lever in the direction of
curved arrow No. 1; the catch lever K being connected to the lever J. by a rod or
other suitable connection is also operated in the same direction; thereby clearing the
card cylinder G. on its downward stroke for as many picks as the lever E is raised in
the banner described; and when the draw bar faller is raised by a needle, the draw
bar is moved by draw knife C.-in the direction of arrow thereforo allowing the levers
to remain in such position that the cylinder is turned one fourth or any portion of a
revolution.
In order to operate the needles N. and frame in a horizontal direction, so that the
needles are presented to different rows of holes in the cards on the upper surface of
the card cylinder for changing the pattern; I mount on the frame A¹ a tappet pulley L,
having a number of projecting pins or pegs O. on one side, by which the pulley is
operated in the following manner.
To one of the oscillating levers B. is attached a lever M. prepared with a projecting
arm M¹ extending for some distance over the draw bars within the side frame A of the
apparatus; and on the other arm of the said lever is a catch hook M' for engaging
with the pegs O. for the purpose of turning the said pulley on the backward stroke of
the levers B.
Mounted on the pulley L. are a number of pattern chain tappets P. of different
heights, which as the several links of the tappet chain arrive at the top of the pulley,
operate a small pulley or bowl Z. secured to one arm of lever R. the other arm
being attached by rod S to lever or arm S¹ mounted on a shaft on which are
also secured other lovers T. coupled to the sliding frame N' carrying the needles N.
By operating the levers R with chain tappets P. of varying heights, the levers T.
and sliding needle frame N' are actuated in a horizontal direction accordingly, so
that the sliding needle frame N¹ is moved a distance corresponding to the height
of the tappet links, and the needles N opposite the desired row of holes in the cards
and cylinder G.
.
In case the design requires the needle frame N¹ and needles N to remain in the
same horizontal position for a repeat in the operation of the healds, the needle N and
draw bar faller D' of the draw bar next the side frame A¹ are not raised by the card
and cylinder G. but allowed to remain down in the position as shown on drawings;
so that on the said draw bar D. being operated by the draw knife C¹ in the direction
for the swell on the said draw bar to come in contact with the projecting piece of
lever F, placed between its supporting 'pin and free end of said lever, the latter is

page_text: raised, the arm M' of lever M being raised also, by which the catch hook M' is raised
clear of the pegs O on tappet pulley L. so that on the backward movement of the
catch hook lover M, the tappet pulley L will remain unturned; thus allowing the
needle frame N' and needles N to remain in the same horizontal position for one or
more picks, until the design requires a change; then the cylinder G will have been
turned into such position by the catch lever K, that the before mentioned needle
and draw bar faller of the lever F are raised, and the draw bar moved by draw
knife C. in the direction that the lever F is not operated, and therefore the catch
hook M is allowed to act on the pegs O. and thereby turn the pulley from one link P.
to another.
The card cylinder G is stayed by the sliding rods U passing through suitable lugs,
so that on the cylinder being operated, it works in a vertical direction and not
radially as heretofore; and the various levers and parts operated by the respective
swells D' when liberated, are brought back to their normal position, by the several
spiral springs attached to the respective parts; the tappet pulley L. being stayed
during the pick of the loom by the lever V. and the card cylinder G by an ordinary
yielding stop.
Having now particularly described and ascertained the nature of my said inven-
Lion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The combination of a draw bar having a swell D¹ thereon, with the levers E.
J. and K. operated substantially in the manner and for the purpose as horvinhufore
set forth.
2. In a dobby or heald regulating machine, a draw bar having a swell D¹ theroon
combined with the levers F. M. tappet pulley L. levers R. S' and T. and the
sliding needle frame N' substantially in the manner and for the purpose as herein-
before set forth.
3. In a dobby or heald regulating machine, the card cylinder G mounted on and
combined with the vertical rods U passing through suitable stays and operated by the
swinging levers H. for the purpose herein before described.
4. The combination of the swells D¹ on the respective draw bars D. with the
levers E and F. and intermediary connections with the catch lever K. and needle
frame N' substantially in the manner shown and for the purpose set forth.
Dated this 6th day of May 1889.
JOHN GILL,
Agent.