IMPROVEMENTS IN LOOMS FOR WEAVING
Year: 1881

page_text: LETTERS PATENT to John Pickering, of Batley, in the County of York, Heald
Maker, for an Invention of "IMPROVEMENTS IN LOOMS FOR WEAVING."
A communication from abroad by George Pickering, of 40, Schlosishe Strasse,
Berlin, in the Empire of Germany.
PROVISIONAL SPECIFICATION left by the said John Pickering at the
Office of the Commissioners of Patents on the 14th June 1881.
JOHN PICKERING, of Batley, in the County of York, Heald Maker. "IMPROVE-
MENTS IN LOOMS FOR WEAVING." A communication from abroad by George
Pickering, of 40, Schlesishe Strasso, Berlin, in the Empire of Germany.
This Invention relates to the picking apparatus of looms for weaving, and the
improvements consist in dispensing with the ordinary picking stick and strap, and
employing instead thereof a picking arm mounted on a rocking shaft fixed to the
lower part of the framework of the loom. This arm projects upward and passes
through a slot or hole in the picker and works upon a binge or pin passed through
the end of the rocking shaft, so that it is capable of oscillating along with the slay.
The picking motion is imparted by means of the ordinary lever hinged to the
loom frame and operated by cam or eccentric on the crank or low shaft. Through
the end of this lever passos a vertical rod which is secured by lock nuts so as to
afford a ready means of regulating the extent of stroke, and the lever end of the
vertical rod is attached to a lever on the rocking shaft. The return motion of
the picking arm is effected by means of a spiral spring which is fixed to the
lowest extremity of the picking arm.
Underneath the junction of the vertical rod and the ordinary picking lover is a
spiral spring which obviates breakages in case of obstruction arising from imperfect
action of the shuttle boxes or other cause.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said John Pickering in the Great Seal Patent Office on the
14th December 1881.
"
JOHN PICKERING, of Batley, in the County of York, Heald Maker. IMPROVE-
MENTS IN LOOMS FOR WEAVING." _A_communication from abroad by George
Pickering, of 40, Schlesisho Strasse, Berlin, in the Empire of Germany.
This Invention relates to the picking apparatus of looms for weaving, and the
improvements consist in dispensing with the ordinary leather picking arm and
side strap, and employing instead thereof a picking stick mounted on a picking
shaft fixed to the lower part of the framework of the loom. This stick projects
upward and passes through a slot or hole in the picker and works upon a hinge or
pin passed through the end of the picking shaft, so that it is capablo of oscillating
along with the slay. The picking motion is imparted by means of the ordinary
lever hinged to the loom frame and operated by cam or eccentric on the crank or
low shaft. Through the end of this lever passes a vertical rod which is secured so
as to afford a ready means of regulating the extent of stroke, and the lower end of
the vertical rod is attached to a lever on the picking shaft. The return motion of
the picking stick is effected by means of a spiral spring which is fixed to the lowest
extremity of tho picking stick bracket, or fixing to receive picking stick end.
Underneath the junction of the vertical rod and the ordinary picking lever is a
spiral spring which obviates breakages in case of obstruction arising from imperfect
action of the shuttle boxes or other cause and renders the picking less rigid.
In order that my Invention may be more fully understood I herein give referenco
to the accompanying Sheets of Drawings, in which Fig. 1 is end elevation of a loom
frame and such parts as are necessary to illustrate my Invention; Fig. 2 being a
front view thereof; Fig. 3 is also end view of loon shewing my Invention as
applied to a loom where the picking stick works above the slay. A is the crank
shaft which carries a cam B for operating the ordinary picking lever C. A short
shaft D is mounted in bearings E, and on one end of this shaft is mounted a
lever F; the lever F is connected with the lever C by means of a vertical rod G.
About the middle of this rod is a collar H upon which rests a spiral spring J, and
the end of the lever C passing over the rod rests upon the top of the spring. K is
the picking stick, in the bottom portion of which is a slot which receives the
flattened end of the shaft D, the two parts being secured by means of the pin and
cotter a. By means of this joint the picking rod is free to oscillate along with the
shuttle box L as well as in conjunction with the picking shaft D. The picking
stick is connected with the picker by means of the flat spring M which passes
through an opening b formed in the picker. The picking stick bracket is elongated
below the shaft D, and a spiral spring N attached to this end and to some fixed
portion of the loom which actuates the whole picking apparatus in the opposite
direction to the cam B. By this arrangement of picking I dispense with use of the
leather picking arm, side strap, and picker bolts, and the spring J effectually
prevents breakages which may arise through imperfect picking. Fig. 3 shews the
application of my Invention to a loom having the picking stick K working from
above. The picking shaft P is connected to the picking lever C by the rod G, the
spiral spring being placed between the collar H and a projection formed on the
lever C, so that should any obstruction arise through the imperfect action of the
shuttle the spiral spring will give way and prevent breakage. By this means I
dispense with the leather side straps at present employed in this class of loom.

page_text: Having thus fully described and ascertained the nature and particulars of my
said Invention, I would have it understood that what I claim is,――
Firstly. The combination and arrangement of the various parts berein described
and shewn in Figs. 1 and 2 for operating the picking stick.
Secondly. The use or employment of the spiral spring J as applied in
Figs. 1, 2, and 3, for the purpose substantially as herein shewn and described.
In witness whereof, I, the said John Pickering, have hereunto set my hand
and seal, this Thirteenth day of December, in the year of our Lord One
thousand eight hundred and eighty one.
TARK
STARNATITA
JOHN FICKERING. (LIS.)