Year: 1887

page_text: Engines.
We GEORGE ASHWORTH and ELIJAH ASHWORTH of the firm of Ashworth Brothers
of the Moss Brook Works, Collyhurst, Manchester, in the County of Lancaster,
Engineers, do hereby declare the nature of this invention to be as follows:-
-
Our Invention relates to the curved grids which are fixed below the main cylinders
of Carding Engines and are designed principally to check waste in respect of useful
fibre. It is of importance that such a grid shall be set very closely to the carding
surface of the cylinder and in practice the grid is fixed so that the said surface shall
just clear the grid when the card clothing is new. As is well known the cylindrical
carding surface becomes reduced in diameter through the wear and re-grinding of
the wire dents and as a consequence the distance between the grid and the carding
surface increases.
To remedy this defect we secure the grid to carriages which are fitted to slide
in or upon ways prepared in or on the underframing or in parts attached thereto the
direction or directions of sliding movement being a radial or being radials with
respect to the axis of the main cylinder. In a simple construction the grid is
clamped or secured to two carriages or blocks which are planed and prepared to
slide in planed ways formed in or on the underframing or in or on a part which
can be bolted or secured to such framing. Each carriage can be moved in a
straight line in the said ways toward and from the axis of the inain cylinder. If
considered to be necessary tightening bolts or screws may be employed to secure
the carriages in their adjusted positions. If considered to be advisable we may
employ other carriages or sliding blocks or adjusting screws at or near the ends
of the grid in order to adjust the curvature of the grid to the curvature of the
cylindrical carding surface.
Dated this 23rd day of November 1887.
DUTTON & FULTON,
1, St. James Square, Manchester,
Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in the Mounting of the Under Grids of Carding
Engines.
We GEORGE ASHWORTH and ELIJAH ASHWORTH of the firm of Ashworth Brothers of
the Moss Brook Works, Collyhurst, Manchester, in the County of Lancaster, Engineers
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 and accompanying drawings:-
Our Invention relates to the curved grids which are fixed below the main
cylinders of Carding Engines and are designed principally to check waste in respect
of useful fibre. It is of importance that such a grid shall be set very closely to the
carding surface of the cylinder and in practice the grid is fixed so that the said surface
shall just clear the grid when the card clothing is new. As is well known the
cylindrical carding surface becomes reduced in diameter through the wear and
re-grinding of the wire dents and as a consequence the distance between the grid
and the carding surface increases. To remedy this defect we secure the grid to
carriages which are fitted to slide in or upon ways prepared in or on the underframing
or in parts attached thereto the direction or directions of sliding movement being a
radial or being radials with respect to the axis of the main cylinder.
The nature of our Invention will be clearly understood when our Invention is more
fully described with reference to the accompanying drawings.
In the said drawings Fig. 1 is a Front View of one of the adjusting appliances
and represents a portion of the under grid in section. Fig. 2 represents a horizontal
section on the line A and Fig. 3 a vertical section on the line B in Fig. 1. In the
said Fig. a is a portion of the under grid and is a part of the underframing of a
carding engine. Upon this under-framing we cast cheeks c. c which are planed to
constitute a slide for a carriage or block d. The line of sliding movement of the said
carriage is arranged to be as near as may be co-incident with a radial from the centre of
revolution of the main cylinder. The side end of the carriage is formed with a seating
for the curved side rib a¹ of the grid. The said upper rib is firmly held between the
curved head of the carriage and a clamping plate d which is bolted to the said head
or the carriage or block d is otherwise suitably attached to or connected with the grid.
The carriage can be delicately adjusted in its slide by means of a screw and nuts e in
a similar manner to other sliding adjustable brackets or parts of a carding engine and
when adjusted the carriage can be clamped or fastened in position by tightening the
bolts It will be understood that there is a corresponding arrangement on each
side of the carding engine as indicated on a smaller scale in Fig. 3. It must also be
understood that although only one adjustable block d appears in Fig. 1 owing to the
curtailment of the length of the grid the grid may be adjusted at more than one place
in its length. In some cases however an adjustment effected by means of two sliding
carriages or blocks might be considered to be sufficient. When adjusting at more

page_text: than one part in the length of the grid a suitable arrangement would be to adjust at
the centre and at the two ends the lines of the adjustment being radials as herein-
before mentioned with reference to the carriage d. In such a case the curve of the
grid could be adjusted to suit the main cylinder. Although we prefer that the parts d
shall be planed and mounted to slide in planed ways or guides we do not absolutely
confine ourselves in this respect. If preferred parts of the carriages d or parts secured
to such carriages might pass through or be mounted to slide in slots or openings in
the underframing so that the adjustment might be effected from the outside of the
carding engine framing. The dotted lines d' and e¹ indicate such an arrangement.
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 :-
(1) The parts for effecting the adjustment of the under grid of a carding engine
substantially as set forth and indicated with reference to the accompanying drawings.
Sustaining the grid below the main cylinder of a carding engine by means of
carriages blocks or parts which are mounted to slide on lines which are radials with
respect to the said main cylinder or thereabouts and are adjustable on such lines for
the purpose set forth.