Improvements relating to the Grinding of Card Clothing.
Year: 1893

page_text: Date of Application, 9th Oct., 1893
Complete Specification Left, 9th May, 1894-Accepted, 9th June, 1894
PROVISIONAL SPECIFICATION.
Improvements relating to the Grinding of Card Clothing.
WILLIAM NOTON 93 Windsor Road Oldham in the County of Lancaster
Cotton Spinner do hereby declare the nature of this invention to be as follows:-
My invention relates to the grinding of card clothing, and consists of an
arrangement by which the emery discs are made to ascend and descend among
the teeth of the card clothing by means of an excentric and rod operating upon an
arn or lever which raises or lowers the shaft or roller on which the discs are
arranged, also an arrangement by which the rod may be lengthened or shortened
by means of a screwed thread upon it and engaging with a nut so as to set
the discs more or less deep in grinding also of an arrangement by which the studs
or centres may be raised or lowered by means of a sliding part holding the stud or
centres on the lever for the same purpose, also of an arrangement by which the
excentric is operated by means of a ratchet wheel and lever or by means of a shaft
and wheels or worm.
1 1
1
1000
WILLIAM NOTON.
COMPLETE SPECIFICATION.
Improvements relating to the Grinding of Card Clothing.
I WILLIAM NOTON of 93 Windsor Road, Oldham, in the County of Lancaster,
Cotton Spinner, 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
My said invention relates to the grinding of card clothing when in position
upon the cylinder of a grinding frame or it might be upon the carding engine
cylinder.
The present invention consists practically of improvements upon and develop-
ments of a former invention for which I have obtained Her Majesty's Letters
Patent No. 9817 of 1892.
Under the present invention, the emery grinding discs are caused to ascend and
descend among the teeth of the card clothing by means of a cam or excentric
operated by a rocking or intermittently actuated lever, pawl and ratchet wheel or
equivalent. The said cam or excentric may be carried by or operated from the
main shaft or other suitable part of the grinding frame cylinder or carding engine
or it might receive motion from an independent source. The excentric or cam is
connected by a rod (which might be made adjustable) with the levers or parts
carrying the emery grinding discs, which are thereby caused to ascend and descend
slowly among the ranks of the card dents, the latter being sharpened by the side
grinding to which they are thus subjected.
To render my invention clearly understood I will now proceed to describe the
same more particularly, reference being had to the annexed sheet of illustrative
drawings.
Fig. 1 is a side view of the upper part of a grinding and dressing frame such
as is used by card makers.
ד
Fig. 2 is a plan view of the important part of Fig. 1.
11

page_text: Referring in the first place to Figs. 1 and 2, the side frame or bend of the
machine is marked a, the cylinder which carries the card clothing is marked b and
the cylinder axle c. Upon the axle c I fix an excentric or cam d.
A stud e
projecting from the frame a carries loosely mounted thereon a lever f, an excentric g
and a ratchet wheel h. The free end of the lever frests upon the excentric d, and
the lever also carries a pawl ' which engages with the ratchet wheel h.
The ratchet wheel and the excentric are either formed in one piece or are firmly
fixed to each other so as to revolve together. Connected to the strap of the
excentric is a rod i which extends to a stud j, which is capable of adjustment
longitudinally in a slot in the lever k. The rod i may also be rendered capable of
being lengthened or shortened by a right and left screwed union coupling %. The
adjustment of the length of the rod i and the movement of the stud in the slot are
contrivances which have for their object the setting and giving more or less throw
to the lever k and consequently more or less movement to the grinding discs.
lever is fast on the shaft m, as is more clearly seen from Fig. 2, and on the same
shaft m (which is carried in brackets n) there is keyed a pinion wheel o which
gears with a toothed segment p. The segment p is mounted on a stud which is
bolted to an extension n from the bracket n. An arm projects from or is secured
to the segment p so that as the segment noves so does the arm ". In the arm ra
bearing is formed to receive the shaft & which carries the grinding discs t and
sleeve.
The
It will be understood that the segments and supporting arm p, together with
the pinion o and bracket n with its extension n', appear also on the other side of
the machine so as to support and operate both ends of the shaft carrying the
grinding discs. It will also be understood that the formation and application of
the emery grinding discs t and the mode of driving and of traversing them across
the cylinder 6 are well known to card makers and form no part of my invention so
that I need not describe these more fully.
l
With this proviso I will now describe how my invention is practically operated.
The position and exact throw of the grinding discs t relatively to the card dents,
having been determined and adjusted by means of the movable stud j and union
coupling on the connecting rod, the cylinder 6 is set in motion by the ordinary
means. The result of this is that the excentric or cam d also revolves and vibrates
the lever fup and down. The ratchet pawl h' rotates the ratchet wheel at the
rate of one or more teeth per revolution of the cylinder b. This has the effect of
slowly rotating the excentric g at the same rate as the ratchet wheel, the lever k
being thereby slowly moved up and down. This slow up and down motion is
transferred to the grinding discs by the pinion o and segment p and the final result
is attained, that the grinding discs are slowly raised and lowered between the
ranks of card teeth so as to grind the sides and sharpen the dents equally in the
desired manner.
The means for driving and traversing the grinding discs are not shown as these
form no part of my invention.
It will be noted that the strap of the excentric is connected to a second rod ¿¹³ in
addition to the rod i.
This rod is or may be connected to a grinding arrangement similar to that
already described, or there might be more than two such grinding arrangements set
to work in conjunction with the cylinder.
I have described the foregoing grinding mechanism as being the most convenient
and practicable arrangement which I have at present designed, but it will be
understood that I do not confine myself to this, as it is evident that other com-
binations of mechanism might be employed and still be within the scope of my
claims so long as a cam or excentric for effecting this up and down motion of the
grinding discs is employed.
For example as illustrated in Fig. 3 of the drawings, I might mount the
excentric and ratchet wheel g, upon the cylinder axle and adopt other means
than a revolving excentric to move the ratchet pawl lever f.

page_text: Such means, as shown in the drawing, consist of a trigger u with inclined face u¹
mounted on a pivot spindle and weighted so as to assume normally the position
shown in Fig. 3. On the pivot spindle v, I also fix a thumb w, upon which the
free end of the lever f rests. From the thumb there extends a finger w¹ which
rests against a pin and prevents the trigger from falling further over in that
direction.
When the cylinder 6 revolves, a pin y which projects from the side, strikes upon
the inclined face of the trigger u and moves the thumb w, lifting the lever and
moving the ratchet wheel and excentric as in the arrangement already described.
When the pin y has passed the trigger, the latter falls back into its normal
position thus allowing the lever f to recede in readiness for its next stroke. The
rods i, i¹ extending from the excentric, operate the grinding rollers in the manner
already described.
In Fig. 4 of the drawings I use the same arrangement to operate the ratchet
wheel as in Fig. 3, but instead of connecting the rod i to an arrangement of levers,
pinions and segments as shown in Figs. 1 and 2, I connect the excentric directly
to the lever z carrying the spindle bearing of the grinding discs. This bearing
lever is pivoted at on a cross shaft and the discs are therefore raised and
lowered without the intervention of the pinions and segments, so that by this
arrangement I reduce the number of parts.
2
د
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
1. The general arrangement, construction and combination of parts comprising
my improved automatic card grinding apparatus both as described and illustrated
with reference to Figs. 1 and 2 and also as regards the modifications described with
reference to Figs. 3 and 4 of the drawings.
2. As means for automatically raising and lowering the emery discs of card
grinding apparatus, a ratchet wheel combined with an excentric or cam and
operated by a lever and pawl from another excentric or cam mounted on or rotated
from the main cylinder axle, or otherwise from some suitable moving part of the
apparatus, substantially as described and as illustrated.
3. Automatically raising and lowering the grinding discs of card grinding
apparatus by connecting the spindle bearings of such grinding discs with a slowly
rotated excentric or cam, or excentrics or cams, arranged and actuated in the
manner or substantially in the manner hereinbefore described and as shown in the
drawings.
4. In combination with the hereinbefore described card grinding mechanism, the
means for setting and adjusting the position, and the rise and fall of the grinding
discs, the said means consisting of the right and left hand screw coupling on the
rod; and the slotted lever k in conjunction with the adjustable stud; on the rod,
as hereinbefore described and as illustrated in Fig. 1 of the drawings.
1001
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Agents.
E. K. DUTTON & Co.,
5, John Dalton Street, Manchester, Agents.