Year: 1887

page_text: Date of Application, 10th Mar., 1887
Complete Left, 10th Dec., 1887
Complete Accepted, 13th Jan., 1888
I HENRY BUTLER of the firm of Butler, Holliday & Co., of Le Houlme Seine
Inférieure in the Republic of France, Manufacturer, do hereby declare the nature of
this invention to be as follows:-
The object of the invention is to improve the arrangement of the mechanism for
effecting the stoppage of the loom when the warp thread or threads break or fail and
to prevent misweaving.
In carrying out my invention I arrange, suspended on the warp threads as they
pass from the warp beam over the guide bar, a series of droppers, fallers, or hooked
or suspended needles, which so long as the threads are intact and the strain on the
warp is normal hang each with their lower end in a hole formed to correspond in a
horizontal bar or plate extending across the loom and all clear of a passage left
between the under side of this bar and another bar below of corresponding arrange-
ment as to holes or grooves therein except that the holes in the lower bar are blind
or are merely grooves lengthwise of the bar whereas the upper ones go through the
bar. Across the passage thus formed, from front to rear oscillates a blade carried on
arms or supports which are pivoted on centres and counterbalanced by a weighted or
balancing arm, which arm is operated rearward (say) by means of an eccentric
carried on a shaft of the loom, whilst the return motion of the blade is effected by its
own weighted dependent arm.
Upon the same shaft is another eccentric which operates preferably outside the
loom a rod or connection from an eccentric thereby causing an oscillatory or partially
rotary motion thereto and moving to and from a catch thereon. The blade in its
normal oscillations when all is in going order gives continual rocking motion to a
suitable lever catch, which is pivoted in suitable bearings on one end of a centred
vibratory bar the other end of which is connected to a rod or connection which moves
the lever for operating the stopping and starting gear of the loom.
When a warp thread fails the faller or needle obstructs the passage between the
bars and engages in them both preventing oscillation of the blade and consequently
the centred rocking catch is not rocked free of the eccentric catch but on the contrary

page_text: engages and locks with it, hence it is moved by the catch and in turn moves the rod
connected to the same support and operating the stop lever stops the loom.
The holes in the bar to receive the droppers are arranged in angular directions
interspacing with adjacent rows for economy of space in the arrangement of the warp
threads.
By these means the prevention of bad weaving from breakage or failure of warp
threads is effected and the individual thread broken is rendered readily detectible.
י.
·
1 1002
WM. BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the Applicant.

page_text: I HENRY BUTLER of the firm of Butler Holliday & Co. of Le Houline Seine
Inférieure in the Republic of France, Manufacturer 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:-
The object of the invention is to improve the arrangement of the mechanism for
effecting the stoppage of the loom when the warp thread or threads break or fail and
to prevent misweaving.
In carrying out my invention I arrange, suspended on the warp threads as they
pass from the warp beam over the guide bar, a series of droppers, fallers, or hooked
or suspended needles, which so long as the threads are intact and the strain on the
warp is normal hang each with their lower end in a hole formed to correspond in a
horizontal bar or plate extending across the loom and all clear of a passage left
between the underside of this bar and another bar below of corresponding arrange-
ment as to holes or grooves therein except that the holes in the lower bar are blind or
are merely grooves lengthwise of the bar whereas the upper ones go through the bar.
Across the passage thus formed, from front to rear oscillates a blade carried on arms
or supports which are pivoted on centres and counterbalanced by a weighted or
balancing arm, which arm is operated rearward (say) by means of an eccentric carried
on a shaft of the loom, whilst the return motion of the blade is effected by its own
weighted dependent arm.
Upon the same shaft is another eccentric which operates preferably outside the
loom a rod or connection from an eccentric thereby causing an oscillatory or partially
rotary motion thereto and moving to and from a catch thereon. The blade in its
normal oscillations when all is in going order gives continual rocking motion to a
suitable lever catch, which is pivoted in suitable bearings on one end of a centred
vibratory bar the other end of which is connected to a rod or connection which moves
the lever for operating the stopping and starting gear of the loom.
When a warp thread fails the faller or noedle obstructs the passage between the
bars and engages in them both preventing oscillation of the blade and consequently
the centred rocking catch is not rocked free of the eccentric catch but on the
contrary engages and locks with it, hence it is moved by the catch and in turn
moves the rod connected to the same support and operating the stop lever stops the
loom.
The holes in the bar to receive the droppers are arranged in angular directions
interspacing with adjacent rows for economy of space in the arrangement of the warp
threads.
By these means the prevention of bad weaving from breakage or failure of warp
threads is effected and the individual thread broken is rendered readily detectible.
Having thus explained the nature of my said invention I will by the aid of the
accompanying drawings proceed more in detail to explain means adapted for carrying
the same into practical effect.

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 shews a side view of so much of a loom as will serve to explain the mode
of applying my invention and Figures 2 to 7 shew details of the parts.
a is a cam mounted upon and operated by the main shaft X of the loom for its
rotation around its centre in the direction of the arrow.
bis a double armed frame supported to be capable of oscillating on centres u u
attached to the framing and this frame carries the blade which is reciprocated
between the bars and m by the action of the cam a on the pendent tail piece t
which has the preponderant weight and normally keeps the framing banging
vertically on the centres u (as shown separately in front and edge views Figures 2
and 3 respectively.)
=
*
1, 1, are needles hung on the warps s supplied from the warp beam S and as long
as these threads remain intact the needles are kept clear of the course of the
oscillating blade but should a thread break or fail a needle 1 previously supported
drops through one of the holes or y across the course and enters a blind hole or
recess in the lower board and thus blocks the blade. This blade when not
blocked comes against the centred rocking piece D centred at vand having a claw
end (2) which is adapted to catch the projection (3) of the piece but as the blade z
when accorded free passage strikes each traverso against the opposite tail end (4) of
this rock arm D and lifts the catch (2) away and prevents engagement. When
thread having broken, the needle fallen, and the blade become blocked, the catch (2)
has not been removed, by the rock arm D not being tilted, the cam Á on the same
shaft as the cam a but within the loom comes in contact with and moves the
lever B attached to the piece C turning that piece partly around its centre c' causing
that piece to draw the rock arm D and the bar supporting it forward, said har being
centred at E and thereby to press rearward the arm y connected thereto at F and by
the end n of that arm g pressing on the lever d which has its fulcrum at D and by
that end in moving into the dotted position moving that lover & out of the position
shewn by the full lines into that shewn by the dotted lines the driving band is
shifted in the ordinary manner from the fast to the loose pulley and the loom is
stopped.
Figure 6 is a diagram explanatory of the operation of the parts, and Figure 7 shews
a needle 1.
Having now particularly described and ascertained the nature of my said Inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
The combination or arrangement and use of mechanism for effecting the stoppage
of looms for weaving when the warp thread or threads break or fail operating as and
for the purpose substantially herein set forth.
Dated the 8th day of December 1887.
WM. BROOKES & SON,
55 & 56, Chancery Lane, London,
Agents for the Applicant.