Improvements in or relating to Picking Motion of Looms for Weaving.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in or relating to Picking Motion of Looms for Weaving.
We, SAMUEL BROOKES, of 95, Peel Street, Farnworth, near Manchester, in the
County of Lancaster, Power Loom Overlooker, and EDWIN BROOKES, of 123,
Worsley Road, Little Hulton, near Manchester, in the County of Lancaster,
Power Loom Overlooker, do hereby declare the nature of our said invention
to be as follows:-
This invention refers to improvements in or relating to picking motion of
looms for weaving and refers to what are known as underpick looms and is
designed to produce a certain and positive action for each pick. On each frame
side of the loom are fixed suitable fixings or brackets carrying or supporting
the picking shaft; the fixing at the upper end being provided with a specially
formed recess consisting of an oblong slot terminating in an eccentric or circular
end to allow of the picking shaft being moved in and out of action by a cam
or tumbler mounted on a rotating shaft operated from any convenient part of
the loom. When the cam or tumbler has placed the upper end of the picking
shaft in the path of the striker on the fly wheel, the arm on the picking shaft
is struck to throw the shuttle through the "shed," this operation being repeated
alternately from both ends of the loom. Immediately the picking shaft is
released by the cam or tumbler it falls backwards in the slot so as not to inter-
fere with the picking motion on the other end of the loom. The cam or tumbler
is provided with tapered ends to ensure of an easy action when coming into
contact with the picking shaft and also when leaving the same.
Dated the 1st day of July 1898.
EDMUND CHADWICK,
Agent.
Improvements in or relating to Picking Motion of Looms for Weaving.
We, SAMUEL BROOKES, of 95, Peel Street, Farnworth, near Manchester, in the
County of Lancaster, Power Loom Overlooker, and EDWIN BROOKES, of 123,
Worsley Road, Little Hulton, near Manchester, in the County of Lancaster,
Power Loom Overlooker, do hereby declare the nature of our said 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 refers to improvements in or relating to picking motion of
looms for weaving and refers to what are known as underpick" looms and is
designed to produce a certain and positive action for each pick. On each frame
ID 077

page_text: side of the loom are fixed suitable fixings or brackets carrying or supporting
the picking shaft; the fixing at the upper end being provided with a specially
formed recess consisting of an oblong slot terminating in an eccentric or circular
end to allow of the picking shaft being moved in and out of action by a cam
or tumbler mounted on a rotating shaft operated from any convenient part of
the loom.
When the cam or tumbler has placed or raised the upper end of the picking
shaft out of the path of the striker on the fly wheel the arm on the picking
shaft is in a position so that the picking shaft is not operated to throw the
shuttle through the " shed," this operation being repeated alternately from
both ends of the loom. Immediately the picking shaft is released by the cam
or tumbler it falls backwards or down in the slot ready to be struck for the
next pick at the end of the loom; each cam or tumbler being arranged to act
or operate on the said picking shafts in successive order. The cam or tumbler
is provided with tapered ends to ensure of an easy action when coming into
contact with the picking shaft and also when leaving the same.
DESCRIPTION OF DRAWINGS.
Fig. 1 is an end elevation of so much of a loom as is necessary to illustrate
our said invention with the same applied-Fig. 2 a part plan of our invention
applied to one end of a loom--Fig. 3 a front elevation of fixing provided with
an oblong slot terminating in an eccentric or circular end, and Fig. 4 a plan
of the face of cam or tumbler.
In all the figures the same letters are employed to indicate corresponding
parts.
A is an elevation of the end view of a loom side or frame; B the crank shaft
of a loom; C cam or tumbler shaft; D fly-wheel; E spur wheel on crank shaft.B,
and G spur wheel on cam or tumbler shaft C.
66
On each frame or side A of what is known as an underpick" loom is secured
the fixing H by the bolts or set screws I; the fixing H forming a footstep in
which is located the bottom end of each picking shaft J. The upper end of
each picking shaft J is located in the fixing K provided with the specially
formed recess consisting of the oblong slot L terminating at the bottom end
in the eccentric or circular end M to allow of the picking shaft J being moved
in and out of action by the cam or tumbler N mounted on the cam or tumbler
shaft C; the latter being driven or rotated from the crank shaft B by the spur
wheel E gearing with the spur wheel G mounted on the cam or tumbler shaft C.
The fixing K is secured to the loom side or frame A by the bolts or set screws S.
When the cam or tumbler N-in its rotary action-operates on the picking
shaft J, the latter is raised to the position shown in dotted lines in the straight
part of the slot L in the fixing K in Figs. 1 and 2, which action places the
arm O on each picking shaft out of the path of the striker P mounted on
the fly-wheel at each end of the loom. When the picking shaft J has been
released from the cam or tumbler N it falls down the slot L into the eccentric
end M in which position it is ready to be struck by the striker by the striker P
on the fly-wheel D for the next pick; this operation being repeated alternately
from both ends of the loom. The cam or tumbler N is provided with the tapered
ends R as shown in Fig. 4 to ensure of an easy action when coming in contact
with the picking shaft J and when leaving the same.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is:-
The general arrangement construction and combination of parts composing
our improvements in or relating to the picking motion of looms for weaving
consisting of the picking shaft J mounted at its bottom or lower end in the
footstep fixing H secured to the loom side or frame A; the upper end of the

page_text: picking shaft J being loosely mounted in the fixing K-secured to the loom
side or frame A-provided with the specially formed recess consisting of the
oblong slot L terminating in the eccentric or circular end M to allow of the
picking shaft J being moved in and out of action by the rotary motion of the
cam or tumbler N with the tapered ends R mounted on the shaft C driven from
the crank shaft B by the spur wheels E and G; the said picking shaft J being
out of action or contact with the cam or tumbler N when the arm 0. on the
picking shaft J is operated upon by the striker P mounted on the fly-wheel D),
by which action the picking shaft J is oscillated to throw the shuttle through
the "shed," the whole being connected, applied, and operating substantially as
described and as illustrated in the annexed drawings.
Dated the 1st day of March 1899.
EDMUND CHADWICK,
Agent.