Improvements in Preparing and Spinning Machinery.
Year: 1891

page_text: Date of Application, 9th Dec., 1891
Complete Specification Left, 9th Sept., 1892-Accepted, 1st Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in Preparing and Spinning Machinery.
We, BENJAMIN ALFRED DOBSON, Machine Maker, of the firm of Dobson and
Barlow, Limited, of Bolton, in the County of Lancaster, WILLIAM MANGNALL,
Carder, of Tong, near Bolton aforesaid, and ROBERT HEWITT ROBINSON,
Foreman Mechanic, of 154 Halliwell Road, Bolton aforesaid, do hereby declare the
nature of our invention to be as follows:-
Our invention relates to those machines employed in preparing and spinning
cotton and other fibre where the lifting rail supports the bobbins upon which the
material is wound and the object of our invention is to balance the lifting rail and
to automatically adjust the balance according to the weight of fibre wound upon the
bobbins.
In carrying our invention into effect we employ a weight arranged to slide upon
a lever, which is connected by chains, links or equivalent means to the lifting slides
or a portion of the lifting slides of the machine.
The weight is traversed along the lever by a screw which in its turn is operated
upon by or from the cone drum strap shifting motion, or other constant motion
connected with the machine.
The pitch of the screw and the size of the sliding weight can be regulated so that
they may exactly compensate for the weight of fibre wound upon the bobbins,
whereby an exact balance of the lifting rail all through the building of the set of
bobbins is obtained.
When the building of the set of bobbins is completed and it is necessary to doff,
the cone drum strap fork is moved by the frame tenter to re-commence a new
set of bobbins-and the weight is also by the same motion moved back to its
normal position, ready to be traversed along the lever as the winding of the bobbins
proceeds.
Dated this 8th day of December 1891
H. B. BARLOW,
Agent for Applicants.
COMPLETE SPECIFICATION.
Improvements in Preparing and Spinning Machinery.
We, BENJAMIN ALFRED DOBSON, Machine Maker, of the firm of Dobson and
Barlow Limited, of Bolton, in the County of Lancaster, WILLIAM MANGNALL,
Carder, of Tong, near Bolton aforesaid, and ROBERT HEWITT ROBINSON,
Foreman Mechanic, formerly of 154 Halliwell Road, but now of 266 Blackburn
Road, Bolton aforesaid, 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 :--
Our invention relates to those machines employed in preparing and spinning
cotton and other fibre where the lifting rail supports the bobbins upon which the
material is wound and the object of our invention is to balance the lifting rail and
to automatically adjust the balance according to the weight of fibre wound upon
the bobbins.
In carrying our invention into effect we employ a weight arranged to slide upon
a lever, which is connected by chains, links or equivalent means to the lifting slides
or a portion of the lifting slides of the machine.
And in order that our invention may be fully understood and readily carried into

page_text: effect we will describe the accompanying sheet of drawings reference being had to
the figures and letters marked thereon.
Figure 1 is a back elevation of a fly frame to which our improvements have been
applied.
Figure 2 is an elevation and Figure 3 a plan on a larger scale of part of the
same and Figure 4 is a section of the sliding weight and the screw which
actuates it.
In the drawings, a designates the weight which is hollow and is fitted upon a
lever b the forked end of which is fulcrumed upon the stud or short shaft c which is
supported in bearings d secured to the machine frame e. The weight a carries
a stud on which is mounted loosely a roller g which rides upon the lever b which
is connected by a chain passing over and under guide pulleys i to rails ; secured
to the lifting slides k.
The weight a is traversed along the lever by a differential or other screw
which is supported in the lever band passes through a nut m fitted in the weight a.
The screw has fixed upon its end a bevel gear n. which is driven by a double
bevel o fixed upon the stud c; and the bevel o is driven by a bevel p fixed upon a
vertical stud or short shaft q on which is also fixed a pinion which gears with the
racks; the racks is actuated by the cone drum strap shifting mechanism and
consequently the screw is turned and the weight a traversed by the means shown
or by equivalent means from the cone drum strap shifting mechanism or other
constant motion connected with the machine.
The pitch of the screw and the size of the sliding weight a can be regulated so
that they may exactly compensate for the weight of fibre wound upon the bobbins,
whereby an exact balance of the lifting rail all through the building of the set of
bobbins is obtained.
When the building of the set of bobbins is completed and it is necessary to doff,
the cone drum strap fork is moved by the frame tenter to re-commence a new
set of bobbins; and the weight is also by the same motion moved back to its
normal position, ready to be traversed along the lever bas the winding of the
bobbins proceeds.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is:-
In preparing and spinning machinery-
1. The combination with the lifting rail, of a movable balance weight and means
for automatically traversing said weight and so adjusting the balance according to
the weight of fibre wound upon the bobbins.
2. The combination and general arrangement of parts for automatically adjusting
the position of the weight which balances the lifting rail and its bobbins substan-
tially as and for the purposes herein described with reference to the drawings
annexed.
Dated this 8th day of September 1892.
H. B. BARLOW,
17, St. Ann's Square, Manchester, Agent for Applicants.