Improvements in or relating to Hawking Machines for Indigo Dye Vats.
Year: 1898

page_text: Date of Application, 15th Aug.,
1898
Complete Specification Left, 11th May, 1899-Accepted, 15th July, 1899
PROVISIONAL SPECIFICATION.
Improvements in or relating to Hawking Machines for Indigo Dye
Vats.
I, WALTER TURNER, of Wheatley Dye Works, Halifax, in the County of York,
Dyer and Finisher, do hereby declare the nature of this invention to be as
follows:-
: -
This invention relates to an improvement in strippers employed in hawking
machines for indigo dye vats, by which such strippers continually bear against
the rollers, and by having a continuous pressure imparted to them prevent the piece
or cloth from getting between the stripper and the roller, and being consequently
damaged, also the effectiveness of such strippers is not affected by any varying
thicknesses of cloth which may be passing through the machine, or through the
wear and tear of the roller necks.
I preferably mount the strippers upon suitable pivotted L levers pivotted upon
each side of the machine frame.
Upon one end of these levers, is attached a spiral spring, this spring is also attached
to a screwed bolt, this bolt passes through the frame of the machine, bracket or
the like, and has adjusting nuts, by tightening or slackening of which the pressure
of the strippers upon the rollers is regulated. Or in place of the springs, bolts, and
nuts, cords, pulleys and weights may be used for the aforesaid purpose.
Dated this Thirteenth day of August 1808
JOHN E. WALSH,
Waterhouse Chambers, Crossley Street, Halifax,
Patent Agent for the Applicant.
Improvements in or relating to Hawking Machines for Indigo Dye
Vats.
I, WALTER TURNER, of Wheatley Dye Works, Halifax, in the County of York,
Dyer and Finisher, 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:-
-
This invention has reference to prior Letters Patent granted to William Henry
Coulter, bearing date the 11th day of July A.D. 1892 No. 12694.
The present invention relates to an improvement in the strippers employed in
hawking machines for indigo dye vats, by which such strippers continually
bear against the rollers, and by having a continuous pressure imparted to them
Q11

page_text: prevent the piece or cloth from getting between the stripper and the roller, and
being consequently damaged, also the effectiveness of such strippers is not affected
by any varying thicknesses of cloth which may be passing through the machine, or
through the wear and tear of the roller necks.
I preferably mount the strippers upon suitable pivotted levers, pivotted upon each
side of the machine frame. Upon one end of these levers, is attached a spiral spring,
this spring is also attached to a screwed bolt, this bolt passes through the frame of
the machine, bracket or the like and has adjusting nuts, by tightening or slacken-
ing of which the pressure of the strippers upon the rollers is regulated. Or in
place of the springs, bolts and nuts, cords, pulleys, and weights may be used for
the aforesaid purpose.
Such being the nature and object of my invention, I will, with the aid of the
accompanying drawings shew how my invention can be put into practice. Fig. 1,
of the accompanying drawings, is a section of a certain part of the machine to
which my improvements are applied. A and B are the ordinary nipping rollers;
which are made to rotate by suitable gearing. These rollers are mounted in frame-
work C and they are immersed in the dye liquor, the fabric which
has to be dyed passing through the liquor and between the said nipping
rollers. D and E are the longitudinal scrapers attached to a cross
rail F, which may form part of the lever arm G pivotted at H.
The free end of this lever arm, is connected to a bolt and spring I, and in order
(self actingly) to place the necessary tension of the scrapers upon the periphery
of the nipping rollers, screws and hand wheels are employed, so that when the
cloth or piece is passing between the nipping rollers, the lever arm G will move
upon its pivot H to automatically adjust the scrapers to suit irregularities in the
thickness of the fabric, consequently the scrapers are not rigid and therefore undue
friction of the scrapers upon the rollers does not take place.
Another advantage is obtained by the adjustable scrapers which always follow
the periphery of the rollers A and B, is that when the bearings or axles of said
rollers wear by usage, and have a slight loose movement the scrapers easily adjust
themselves.
Fig. 2 is a slight modified form of Fig. 1. Instead of the lever arm G being
connected direct to a spiral spring, it is connected by vertical hooked rods L to a
beam or cross bar M which is made adjustable to suit irregularities in the thickness
of the cloth by the spring I the remainder of the parts being the same as Fig. 1.
Fig. 3 is another slight modification where the cross rail F is capable of
oscillating upon the pivot or hinge H, spiral springs I being employed for adjust-
ment of the scrapers for uneven cloths.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed I declare that what
I claim is:
In hawking machines for indigo dyeing, the use of springs I and pivotted lever
arms G employed in the manner shewn and for the objects herein specified.
Dated this on day or
May 199.
TASKER & CROSSLEY,
Patent Agents,
Halifax, Agents for Applicant.
TASKER & CROSSLEY,
Patent Agents,
Halifax, Agents for Applicant.