IMPROVEMENTS IN AND APPLICABLE TO LOOMS FOR WEAVING
Year: 1876

page_text: LETTERS PATENT to Jacob Butterworth, of Rochdale, in the County of Lan-
caster, and Abraham Sutcliffe Wild, of Wardle, in the same County, for the
Invention of "IMPROVEMENTS IN AND APPLICABLE TO LOOMS FOR WEAVING."
PROVISIONAL SPECIFICATION left by the said Jacob Butterworth and
Abraham Sutcliffe Wild at the Office of the Commissioners of Patents on the
29th December 1876.
JACOB BUTTERWORTH, of Rochdale, in the County of Lancaster, and ABRAHAM
SUTCLIFFE WILD, of Wardle, in the same County. "IMPROVEMENTS IN AND
APPLICABLE TO LOOMS FOR WEAVING."
Our Invention relates to looms employed in weaving, and more particularly to
the parts which act to check or brake the shuttles when entering the shuttle boxes,
that is to say, to the parts which absorb the remaining impetus of the shuttles and
prevent or lessen the rebound of the said shuttles.
The object of our Invention is to release the shuttle at or about the time when it
is to be driven out of the box, that is to say, to relieve the shuttle from the pressure
of the swell or part which checks the shuttle as aforesaid. To this end we in the
first place fix a lever upon a rod which is connected with the swells or parts which
check the shuttle as aforesaid, and we mount a finger on the crank shaft, which
finger raises the said lever at the proper times during the working of the loom but
yields and does not act upon the said lever when the loom is "turned back."
In an arrangement which we have devised for the purpose, the said lever is fixed
upon the stop rod, and the said finger is mounted upon a stud which is fixed on a
boss or collar, which is fastened on the crank shaft by means of a set screw so that
it can be adjusted, or the said finger is otherwise hinged or jointed to the said boss
or collar. The said finger is free to yield so as not to act upon the said lever when
the loom is "turned back," or so as not to act to any great extent upon the said
lever, but when the crank shaft is turning in the proper working direction a pro-
jection on the said boss or collar sustains the said finger and enables it to raise the
said lever, whereby the said stop rod is turned in its bearings to some extent, and

page_text: the shuttle is eased or released. The said finger may be otherwise arranged to
be rigid when moving in one direction, and to yield when moving in the reverse
direction.
In another arrangement we mount the said finger upon one of the crank arms
or upon a part fixed thereto, as, for example, upon the collar, and we cause it to act
at the required times upon a lever which is connected with the stop rod.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Jacob Butterworth and Abraham Sutcliffe Wild in the Great Seal Patent
Office on the 29th June 1877.
JACOB BUTTERWORTH, of Rochdale, in the County of Lancaster, and ABRAHAM
SUTCLIFFE WILD, of Wardle, in the same County. "IMPROVEMENTS IN AND
APPLICABLE TO LOOMS FOR WEAVING."
Our Invention relates to looms employed in weaving, and more particularly to
the parts which act to check or brake the shuttles when entering the shuttle boxes,
that is to say, to the parts which absorb the remaining impetus of the shuttles and
prevent or lessen the rebound of the shuttles.
The object of our Invention is to release the shuttle at or about the time when it
is to be driven out of the box, that is to say, to relieve the shuttle from the pressure
of the swell or part which checks the shuttle as aforesaid. To this end we employ
a lever which is connected with the swells or parts which check the shuttle as
aforesaid, and we mount a finger on the crank shaft or on a suitable moving part of
the loom, which finger raises the said lever at the proper times during the working
of the loom, but yields and does not act upon the said lever when the loom is turned
back.
And in order that our Invention may be fully understood, we have supplied, to
accompany this Specification, a Sheet of Drawings made about two-thirds of the
full linear dimensions, and marked with letters of reference.
с
Referring to the said Drawings, Figure 1 illustrates the application of our Inven-
tion to an ordinary woolen loom. In the said Figure the loom-sley is indicated
in cross section at A, and the ordinary stop rod at b. To or on the said stop rod is
fixed or formed a lever c which extends upwards and presses upon the swell which
checks the movement of the shuttle when entering the box, the said parts being of
any usual or suitable form and construction. A lever D is mounted upon the sloy.
We prefer to form this lever in two parts D and e. The part e is cast or formed
with two trunnions which are mounted in bearings f, which are secured to the
under side of the sley. The inner end of the part D is formed with an eye to slip
on to one of the said trunnions, and is secured to a projecting part of e by means of
a bolt g, the arrangement permitting the action of the lever D to be readily adjusted
by moving the said bolt up or down in a slot in the said projecting part. The
part e is curved to pass below the stop rod and is formed with a projecting end /
which passes over the lever c. The outer end of the lever D is suitably formed to
be acted upon by a finger i which is mounted upon a collar ke which is secured to
the crank shaft. Fig. 2 represents a side view of the said collar and finger. The
said finger is mounted upon a stud which is rivetted or otherwise fixed to a pro-
jectingpart 1 of the collar k, the said finger being free to swivel upon the stud to
some extent. A stop m is cast or formed upon the part . When the finger i is
turned outwards, as seen in Fig. 1, the finger bears against the said stop and is
supported thereby. When the crank shaft is revolving in the direction indicated
in Fig. 1, the said finger is supported by the said stop, and coming in contact with
the lever D at each revolution of the crank shaft, raises the outer end of the said

page_text: lever, whereby the other end e is depressed. When the end e is depressed it also
depresses the lever c and thereby withdraws its upper end from the swell, and as
a consequence, the pressure of the swell upon the shuttle is relieved. The parts are
so arranged as that the lever D shall be raised immediately before the shuttle is
driven out of one box or the other. The pressure of the swell upon the shuttle
being thus relieved, the shuttle is more free to be acted upon by the picker, and as
a consequence, less power is required to send the shuttle across the shed and less
wear of the picker and other parts is occasioned. As the crank shaft continues to
rotate the finger moves away from the lever D and the said lover is lowered,
whereby the lever c is again permitted to press upon the swell, which is then ready
to check the shuttle on its return to the box. It will be understood that the stop
rod 6 transmits the requisite movements to the lover at the other end of the sley
corresponding to the lever c, so that the lever D releases the shuttle when leaving
the boxes at both ends of the sley. When the loom is turned back and the crank
shaft revolves in the direction indicated in Fig. 3, the finger i is no longer supported
by the stop m and is free to yield and to move back as indicated in the said Fig.,
the consequence being that the finger does not act upon the lever D and the pressuro
of the swells is not relieved. The relieving of the pressure of the swells at wrong
times is thus prevented.
Although we prefer the arrangement illustrated, it may be simplified by fixing
the lever D by its inner end upon the stop rod, the part e being then dispensed
with.
Fig. 4 illustrates the application of the Invention to an ordinary cotton looni.
In this example, the parte is formed with a finger which projects behind the lever c
which presses upon the swell. When the lever D is raised the finger on e presses
against the inner side of the lever c and moves it outwards from the sley, whereby
the pressure upon the swells is relieved. In Figs. 1, 2, and 3 the collar k is mounted
on the crank shaft and secured thereto by means of a set screw.
Fig. 5 illustrates a modification in the method of attachment. In this example
the part is secured to the end of the crank shaft, indicated by n, by means of a
screw o which passes through the part k.
Such other modifications may be made in the details as may be considered
advisable or as may be rendered necessary by variations in the looms to which the
Invention is to be applied, as, for example, the lever D may be arranged to be
depressed by the finger i, or the said finger may be caused to be rigid when moving
in one direction and to yield when moving in the other direction by other means than
those herein indicated; the important feature in our Invention being the employment
of a finger or part which acts upon a lever to relieve the pressure on the swells
when the crank shaft of the loom is revolving in the proper working direction, but
has no action to relieve the said pressure when the loom is turned back, that is to
say, when the crank shaft revolves in a reverse direction. The finger i may be
mounted on a fly or spur wheel, or upon any other suitable moving part of the
loom, or a rigid finger or tappit may act upon a part which is hinged to the lever D
and which is prevented by a stop from yielding in one direction but is free to yield
in the other direction. When the crank shaft would be revolving in its ordinary
working direction, the said finger or tappit would come in contact with the part
hinged to the said lever, and the said part not yielding, the lever would be acted
upon, but when the loom would be turned back the said part would yield and the
lever would not then be acted upon.
Having now fully set forth and indicated the nature of our said Invention and
means whereby the same may be carried into practical effect, we would have it
to be understood in conclusion that we claim,―
First. The arrangement, substantially as and for the purposo set forth and
indicated herein-before and in and by the accompanying Drawings.
Secondly. The finger i or a modification thereof, arranged and acting substantially
as and for the purpose set forth and indicated.

page_text: And, lastly. A lever acted upon by a finger or part only when the crank shaft
is revolving in its ordinary working direction for the purpose set forth.
In witness whereof, we, the said Jacob Butterworth and Abraham Sutcliffe
Wild, have hereunto attached our hands and seals, this Twenty-sixth day of
June, in the year of our Lord One thousand eight hundred and seventy-
seven.
Signed and sealed by the
said Jacob Butterworth
and
Abraham Sutcliffe
Wild, in the presence of
EDWARD K. DUTTON,
Agent to the Patentees,
Manchester.
JACOB BUTTERWORTH. (L.S.)
A. S. WILD.
(L.S.)