AN IMPROVED PICKING MOTION FOR LOOMS "
Year: 1883

page_text: LETTERS PATENT to Henry Yates of the firm of William Yates & Sons of
Manchester in the County of Lancaster for an Invention of "AN IMPROVED
PICKING MOTION FOR LOOMS
"
PROVISIONAL SPECIFICATION left by the said Henry Yates at the Office
of the Commissioners of Patents on the 19th March 1883.
HENRY YATES of the firm of William Yates & Sons of Manchester in the
County of Lancaster, "AN IMPROVED PICKING MOTION FOR LOOMS
"
As applied to under pick looms I dispense with the usual scroll, tumbler and half
circle for actuating the picking shaft and instead of mounting the latter stationaryly
in the bracket as heretofore I arrange a slot in the top bracket on each side of the
loom to allow the picking shaft to move out of the way of a fixed striker upon the
side of the fly wheel at each alternate revolution and which picking shaft moves
back to the other end of the slot and thus is ready to be struck by the stud at
every other revolution.-This is effected by mounting cams at either end of the
weft motion shaft and which are "timed" to lift their respective picking shafts out
of the way whilst the striker is passing at each alternate revolution as aforesaid.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Henry Yates in the Great Seal Patent Office on the 19th
September 1883.
HENRY YATES of the firm of William Yates and Sons of Manchester in the
County of Lancaster "AN IMPROVED PICKING MOTION FOR LOOMS"
I dispense with the usual scroll, tumbler and half circle for actuating the picking
shaft in underpick looms and instead of mounting the picking shaft a stationarily
in the bracket as heretofore I arrange a slot (as seen more clearly by the dotted
lines in Fig 2) in the top bracket b on each side of the loom to allow the picking
shaft a to move out of the way of a fixed striker c upon the side of the fly-wheel d
at each alternate revolution and which picking shaft moves back to the other end
of the slot and thus is ready to be struck by the striker c at every other
revolution-this is effected by mounting a came at either end of the weft motion
shaft and which cam is "timed" to lift its respective picking shaft out of the
way in the direction of the dotted lines whilst the striker is passing at each
alternate revolution as aforesaid.
Instead of being lifted out of the way as aforesaid it will be readily apparent
that the picking shaft may have a partial revolution imparted to it for the same
purpose but this I should consider to be a modification of my invention.
It will be further obvious that these improvements are equally applicable to new
or existing underpick looms
Having thus particularly described the nature of this my said invention together
with the best methods with which I am acquainted for carrying the same into
practical effect I wish it to be distinctly understood that I do not confine myself to
the precise details, relative proportions or dimensions hereinbefore described and
- illustrated on the accompanying drawing as the same may be considerably varied
without departing from the invention but what I claim is :-
1st The improvements in or applicable to under-pick looms whereby the usual
scroll, tumbler and half circle are dispensed with substantially as and for the
purposes herein before described and illustrated on the accompanying drawing.
2nd Mounting the upper end of the picking shaft in a slot in the top bracket
and causing the same to move or turn out of the way of a fixed striker at each
alternate revolution by the action of a cam or its equivalent mounted upon the
weft motion shaft substantially as herein before described and illustrated on the
accompanying drawing.
In witness whereof I the said Henry Yates have hereunto set my hand and
day of September in the year of our Lord One thousand
seal this
Eight hundred and Eighty three