IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1883

page_text: LETTERS PATENT to Miles Sowden of the firm of David Sowden and Sons,
Thornton Road, Bradford in the County of York, Machine Makers. for an
Invention of IMPROVEMENTS IN LOOMS FOR WEAVING
PROVISIONAL SPECIFICATION left by the said Miles Sowden at the Office
of the Commissioners of Patents on the 8th June 1883.
MILES SOWDEN, of the firm of David Sowden and Sons, Thornton Road Bradford
in the County of York, Machine Makers IMPROVEMENTS IN LOOMS
WEAVING
FOR
This invention relates to certain improvements in apparatus for operating the
healds in looms, and for regulating the shuttle drop boxes at each end of the loom;
and has for its object the arrangement of the several parts, so that the healds when
once raised, are securely held in that position until liberated by the card or peg
cylinder and to regulate the shuttle drop boxes by means of a cylinder mounted
on the same shaft as the card or lag cylinder in the heald machine, in such a
manner, that more time is obtained for holding the catches that actuate the pin
wheels for raising and lowering the shuttle drop boxes.
:
I accomplish my object in the following manner:
To the framework of heald machine I mount a series of arms that are free on a
stationary shaft, and which are operated upon by the card or lag cylinder actuated
in the usual manner. Resting upon each of these arms, is a draw knife attached
by suitable means to the arc levers above the healds, and when any of the arms
are raised by the card or lag cylinder, the draw knives above each arm thus raised
are actuated by the top reciprocating draw bar, raising the healds the distance
required, which are retained in that position, by means of a catch on each draw
knife, hooking hold of a similar catch on the respective arms, until liberated by the
card or lag cylinder, when the bottom reciprocating draw bar will lower the healds.
The draw bars receive motion in the usual manner, but instead of working in
D...Al

page_text: straight paths, they slide in curved slots which converge at one end of the
traverse.
The second part of my invention is accomplished by mounting a series of levers
above a cylinder, mounted on the same shaft as the card or lag cylinder; these
levers are connected to catch levers, which are also connected to bell crank levers
that actuate the catch arms that operate upon the pin wheels for raising and
lowering the shuttles boxes. When any of the first named levers are raised, the
corresponding catch lever is raised also, and is retained in that position by an arm
coming into contact with a projection on said lever, retaining the same in the
requisite position a sufficient length of time, to enable the catch arm to turn the
pin wheel, and operate the shuttle boxes in the direction required to produce the
desired pattern in the piece being woven

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Miles Sowden in the Great Seal Patent Office on the
8th December 1883.
MILES SOWDEN, of the firm of David Sowden and Sons, Thornton Road Bradford
in the County of York Machine Makers IMPROVEMENTS IN LOOMS FOR
WEAVING
This invention relates to certain improvements in apparatus for operating the
healds in looms, and for regulating the shuttle drop boxes at each end of the
loom and has for its object the arrangement of the parts so that the healds when
once raised are securely held in that position until liberated by the card or peg
cylinder and to regulate the shuttle drop boxes by means of a cylinder mounted
on the same shaft as the card or lag cylinder in such a manner, that more time is
obtained for holding the catch that actuates the pin wheel for raising and lowering
the shuttle drop boxes.
In order that my invention may be more clearly understood, I have appended
two sheets of drawings in which Figure 1 represents a side elevation of my improved
apparatus for regulating the healds, one of the side frames being removed to better
illustrate the interior or working parts, and Figure 2 is an end view: in all the
figures similar letters indicate similar parts where they appear.
•
On a shaft secured to each side frame A, I mount a series of arms B that are
free on the said shaft, and which are operated upon by the card or lag cylinder C
of the ordinary construction and actuated in the usual manner: each of the arms B
is provided with a catch at B¹, for the purpose of holding up the healds in the
manner as hereafter described, and the said arms are kept at the relative distance
apart from each other by grates G and G¹.
The reciprocating draw-bars D receive motion in the usual manner, and slide in
slots E, formed in each side frame A, which converge towards each other at one
end of the slots. By the slots E converging in the manner shewn, each draw bar D
at one end of the traverse, moves the draw knives F in the direction of the arrow
such a distance, that the catches F¹ at the end of the same are clear of the catches B¹,
thus liberating the arms B to be operated upon by the card or lay cylinder C
through the needles N.
The draw knives are coupled to the arc levers H, and when the before mentioned
catches B and F¹ are in contact, the healds are at the top, but, say when the
cylinder C is arranged for cards, and any of the pins N be not raised, the corres-
ponding arms B will drop so that the catches B¹ and F1 are clear, and on the
return of the top or bottom draw bar as the case may be, those draw knives F that
are clear of the catches B, will travel along with the said draw bar, thereby
lowering the healds connected therewith, which will be raised again on the return
stroke of the draw bar, and bring the catch ends of draw knives at F' into the
position to hook hold of the catches B¹, when the operation of selecting the healds
to be actuated will be repeated by the card cylinder C, needles N, and arms B in
the manner as before described.
The second part of my invention is illustrated on sheet 2, Figure 3 representing
such portions of the end elevation of a loom and my heald regulating apparatus as
are required to describe this portion of my invention. Figure 4 is a side view of
the heald apparatus shewing the lever above the cylinder for actuating the catch
motion, and Figure 5 is a detail of slotted arm for holding up and keeping the
catch in gear.
The cylinder C' is ordinary, mounted on the same shaft as cylinder C: above C'
is placed a lever or arm J, supported at one end by stud K, and to the other end is

page_text: jointed rod L connecting the same to lever or arm M, which is supported by a stud
at M' the arm M is connected by rod P to lever Q, the end of which at Qi retains
the catch R in the requisite position a sufficient time to enable the latter to turn the
pin wheel S, which is of ordinary construction, and connected to the shuttle boxes
in the usual manner.
When the lever or arm J is raised by the cylinder C' coming in contact with
pin P, the arın M is raised also, such a distance, that spring S¹ which is in tension,
draws the arm T towards the said spring, the projection M³ passing into slot T¹
thereby holding up arm M, and retaining the end of lever Q at Q' close to catch R,
holding the same in the requisite position until the catch R is actuated by the
lever U being raised by revolving tappet U', thus turning the pin wheel S,
thereby actuating the drop boxes.
and
When the drop boxes have been actuated in the manner described, the revolving
tappet V will liberate the arm M and move the end of lever at Q' clear of the
catch R, so that the same can descend and be in readiness for turning the pin
wheel S another portion of a revolution, when the arm M will be again raised and
the catch retained in the manner as before described.
:
Having thus described my invention and the manner of performing the same,
I have to state that I do not restrict myself to the precise details herein described
and delineated, but that what I believe to be novel and original, and claim as the
invention secured to me by and in terms of the hereiubefore in part recited Letters
Patent is
-
The general arrangement of the various parts of the apparatus for regulating the
healds, substantially in the manner described and as illustrated by the accompanying
drawings.
The arrangement and combination of the catches B₁ with catches F', substantially
in the manner and for the purpose as herein before described and as illustrated by
the accompanying drawings.
L
The arrangement of the slots E converging at one end for the purpose herein set
forth.
The arrangement and combination of the cylinder C₁, arm J, and the several
intermediate connections with the lever for the purpose as herein before described
The combination of the arm M, and slotted arm T, with the revolving tappet V,
substantially in the manner and for the purpose as hereinbefore described and as
illustrated by the accompanying drawings
In Witness whereof I the said Miles Sowden have hereunto set my hand and
seal this sixth day of December in the year of our Lord One thousand eight
hundred and eighty three
MILES SOWDEN
(L.S.)