IMPROVE- MENTS IN LOOMS FOR WEAVING
Year: 1877

page_text: LETTERS PATENT to Herbert Portway, of Bradford, in the County of York,
Worsted Stuff Manufacturer and Merchant, for the Invention of " IMPROVE-
MENTS IN LOOMS FOR WEAVING."
Sealed the 22nd March 1878, and dated the 24th September 1877.
$
PROVISIONAL SPECIFICATION left by the said Herbert Portway at the Office
of the Commissioners of Patents on the 24th September 1877.
HERBERT PORTWAY, of Bradford, in the County of York, Worsted Stuff Manu-
facturer and Merchant. "IMPROVEMENTS IN LOOMS FOR WEAVING."
"
This Invention relates to further improvements in self-acting mechanism for
stopping the loom when an "end" or thread of the warp breaks (for which Letters
Patent bearing date the First day of May 1877, No. 1691, were granted to me);
and the present Invention consists in utilizing the motion of the "slay or "going
part" for actuating apparatus herein-after described, whereby the movement of the
slay" or "going part" is further utilized for acting upon and knocking off the
stop or spring handle.
"
"
"
According to this my present Invention I employ falling pins and perforated
guide boards or guide plates, and a swivel bar, reciprocating motion being also
imparted to the said bar by means of adjustable rods connecting the bar with the
slay or going part" of the loom. When an
"end" or thread is broken, and
the faller pin connected therewith descends, the reciprocating swivel bar is caught
thereby, and partly turned on its axles or bearings. A projecting finger attached
to the said bar acts upon a spindle, the latter receiving a partial rotary motion,
which, by means of connections, pulls or moves a spring or weighted buffer piece
into line with the stop handle, and an adjustable buffer connected to the fore part
of the "slay or "going part," so that in the advance movement of the latter the
buffer acts upon the buffer piece, and "knocks off " the stop handle, the bar
referred to being returned to its original position, and the spring or weighted buffer
piece being likewise returned to its original position by means of lever and weight
or equivalents.
33

page_text: When the warp is exhausted or woven out, in order to secure the faller pins and
the "ends" or threads in position during the operation of "tying in" or twisting
to a new warp, and (to avoid re-threading), a board is placed upon the heads of the
faller pins, and, being attached to the guide board or plates herein referred to, holds
the whole in position.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Herbert Portway in the Great Seal Patent Office on the 22nd March
1878.
HERBERT PORTWAY, of Bradford, in the County of York, Worsted Stuff Manu-
facturer and Merchant. "IMPROVEMENTS IN LOOMS FOR WEAVING."
"
"
This Invention relates to further improvements in self-acting mechanism for
stopping the loom when an "end" or thread of the warp breaks (for which Letters
Patent, bearing date the First day of May 1877, Number 1691, were granted to me);
and the present Invention consists in utilizing the motion of the "slay or "going
part" for actuating apparatus herein-after described, whereby the movement of the
slay" or going part" is further utilized for acting upon and knocking off the
stop or spring handle.
According to this my present Invention I employ falling pins and perforated
guide boards or guide plates, and a swivel bar, reciprocating motion being also
imparted to the said bar by means of adjustable rods connecting the bar with the
"slay
«
or going part" of the loom. When an end or thread is broken, and
the faller pin connected therewith descends, the reciprocating swivel bar is caught
thereby, and partly turned on its axles or bearings. A projecting finger attached
to the said bar acts upon a spindle, the latter receiving a partial rotary motion,
which, by means of connections, pulls or moves a spring or weighted buffer piece
into line with the stop handle, and an adjustable buffer connected to the fore part
of the "slay going part," so that on the advance movement of the latter the
buffer acts upon the buffer piece, and "knocks off" the stop handle; the bar
referred to being returned to its original position and the spring or weighted buffer
piece being likewise returned to its original position by means of lever and weight
or equivalents.
"
or "
When the warp is exhausted or "woven out," in order to secure the faller pins
and the "ends
or threads in position during the operation of "tying in or
twisting to a new warp, and (to avoid re-threading), a board is placed upon the
heads of the faller pins, and being attached to the guide board or plate herein
referred to, holds the whole in position.
Such being the nature and object of this my said Invention, I will now proceed
to describe same in detail, and in order that the Invention may be fully under-
stood I have hereunto annexed two Sheets of Drawings.

page_text: "
g. 318 a plan view.
Figs. 4 and 5 are details.
A, A, are the faller pins; B, B, the perforated board or guide plate; C is the
swivel bar, which is caused to reciprocate to and fro (under the pins A) along the
spindle D by means of the connecting rod E operated by the motion of the "slay" or
going part;" F, the rod; E is adjustable by screw bracket G, and there is one of
such rods or brackets at each side of the loom. When an "end" or thread
breaks, its pin A falls, and is caught by the bar C, tilting the same on its
axles, whereon one or other of the pins H, H, bear upon the cranked foot J of
the spindle J', turning the latter partly round, so pulling by means of the con-
necting rod K the spring L in front of the stop handle M on the forward or in
movement of the "slay" or "going part" F. The head of the adjusting screw N
acts as a buffer, and knocks the stop handle off, and the loom is stopped as soon as
the stop handle M is removed from behind the spring L (as described); the latter is
free to return self-actingly through the medium of the levers and weight P to its
original position; and in like manner the contact of pin H and spindle J set or
return the reciprocating swivel bar C to its original position, so that the apparatus
is self-acting throughout; R, R, are rests with glazed or polished tops on which the
warp is supported. At S, S, are the vanes of a fan caused to rotate in opposite
directions by the pull of the forward movement of the "slay" upon the cord T, and
by means of the spiral spring V; W is the axis of the fan, the cord T being passed
round the axis. The use of the fan is to remove "fluff" or loose waste fibres from
the needle board B.
Sheet 2 shows a modification of this arrangement.
Having thus fully described the nature and particulars of this my Invention,
I would have it understood that I limit and confine my Invention to the com-
bination and use of the buffer piece N and spring L (or the equivalent of L), as
and for the purpose herein described and shewn.
In witness whereof, I, the said Herbert Portway, have hereunto set my
hand and seal, this Twenty-first day of March, in the year of our Lord
One thousand eight hundred and seventy-eight.
Witness,
WALTER BRIERLEY,
Patent Agent,
Halifax & Blackburn.
HERBERT PORTWAY. (LS.)