Improvements in Travellers for Ring Doubling Frames.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Travellers for Ring Doubling Frames.
•
JOHN WILLIAM Cooк, trading as Cook & Co., 2, Exchange Street, Manchester,
in the County of Lancaster, Ring Traveller Maker, do hereby declare the nature
of this invention to be as follows:-
My improvements relate to travellers made of composition, metal or other
suitable material, which are used for doubling cotton, wool, silk or other fibres,
to prevent undue friction on the ring, less wear of the traveller, & to ensure better
lubrication & lighter running.
To accomplish this & to effect my improvements I form the part between the
upper and lower bowed part of the traveller in a curved form, so that only a
portion of the said curve comes in contact with the ring.
Variations may be made in the shape or form of this curve.
Improvements in Travellers for Ring Doubling Frames.
.
I, JOHN WILLIAM COOK, trading as Cook & Co., at 2, Exchange Street, Man-
chester, in the County of Lancaster, Ring Traveller Maker, do hereby declare
the nature of my invention and in what manner the same is to be carried into
effect to be particularly described in and by the following statement:-
My invention relates to that class of traveller used in the operation of twisting
or "doubling" yarns or threads on the ring frame. The travellers usually employed
are constructed as shown in Fig. 1 in the drawing hereunto annexed with an upper
and lower hook which respectively engage with the top and bottom of the ring.
The two hooks are coupled by a shank which is quite straight. When the traveller
is in use the shank is drawn against the inner face of the ring thus setting up
a considerable amount of friction leading to rapid wear of the traveller and adding
to the drag. Lubrication is usually effected by means of the application of grease
to the ring and the form of traveller ordinarily employed tends to remove the
grease owing to the close contact set up in the manner described thus increasing
the friction. My invention has for its object the obviation of all of these
difficulties.
In carrying my invention into effect I construct the traveller of the usual materials
as shown in Fig. 2 in the drawing hereunto annexed with the shank curved at
the point A so as to leave a space between it and the ring. The only points of

page_text: contact are at a-b as will readily be seen. By this construction friction is
materially reduced the traveller runs more lightly and the lubricant lies on the
face of the ring where the traveller does not touch it. The adoption of the herein-
before described method of construction enables me to use a heavier traveller than
can be ordinarily used and ensures steadier running a longer life of the traveller
and a reduction in the quantity of grease used. I do not bind myself to the precise
form of curve shown which may be varied as desired.
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:
-
The construction of a traveller of the indicated nature in such a manner that
the shank connecting the upper and lower hooks is so curved or bent that it
normally touches the ring on two narrow surfaces only.
JOSEPH NASMITH,
Agent of the Applicant.