Year: 1887

page_text: Date of Application, 29th Apr., 1887.
Specification Accepted, 31st May, 1887.
ALFRED VINCENT NEWTON of the Office for Patents, 6 Bream's Buildings, Chancery
Lane, in the County of Middlesex, Mechanical Draughtsman, 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 refers to carding engines fitted with revolving flat cards, and its
object is to afford means for the better and more exact adjustment of the surface of
the teeth of said rovolving flats to the surface of the teeth of the rotating cylinder or
drum. In order to make such adjustment more perfect than heretofore, it is now
proposed to adjust the carding surface of said revolving flats not only radially, or
towards or away from the cylinder, but also tangentially to the cylinder; the adjust-
ment, therefore is a twofold one. Hitherto the revolving flats, although adjusted with
great care, often shewed certain defects, inasmuch as a uniform distance was not secured
between the flats and the cylinder ;-the teeth of one flat touching the teeth of the
cylinder; those of, say, the next following flat being too far away from the cylinder;
while the teeth, say, of the third flat assumed the exact position required relatively to the
cylinder. Irregularities of this kind in the entire series of revolving flats necessarily
produced indifferent results in the carding operation. In order to provide for the
twofold adjustment of the flats with respect to the drum and cylinder, viz., radially
and tangentially, the inventor has designed the following means; the one for application
to existing carding engines, and the other for new carding engines.
In the accompanying drawing, fig. 1 shews, in side view, a portion of a revolving
flat with the invention applied thereto in a form best suited for adaptation to machines
already constructed.-Fig. 2 is an end view of the revolving card, and fig. 3 shews,
detached, an elastic adjusting piece applied to the working face of the flat.
The revolving flat cards consist of a series of bars connected together by a pair of
endless chains, and faced with card teeth.—These bars, which are made preferably of

page_text: malleable cast iron are formed with an arched web at their back rising up from the flat
part a of the bar. The underside of this bar is closed with card teeth in the usual
manner. -The opposite ends of this flat card are rebated, as at b, Fig. 1, to
receive an elastic bearing plate c, shewn detached and in plan view at Fig. 3.-This
plate, it will be seen, is divided or forked to form two independent bearing surfaces,
and it is secured to the bar or flat a by means of a screw d. The lower surface of the
divided portion of the plate c is shaped, as shewn at Fig. 2, to correspond with the
segmental surface over which it travels.-e e are two adjusting screws, which pass
through the end of the bar a, to bear upon the underlying elastic portions of the
bearing plate c. The bar or flat a is cast, at its opposite ends, with a projection, to
for engaging with the pair of cudless chains, by which the
which is fitted a bolt
flat cards are revolved.
It will now be understood that by means of the screws e e', which bear upon the
back or inner face of the divided and elastic portion of the plate c, the adjustment of
the flat card may be readily effected, not only in the manner illustrated diagrama-
tically at Fig. 4, that is, radially, by rising both set screws, but also tangentially, as
in Fig. 4º, by rising one of the set screws only.
When constructing new carding engines, it is preferred to adopt the arrangement
shewn in the partial sectional elevation, Fig. 5, and end view, Fig. 6. In this case,
the like parts are provided for the twofold adjustment of the revolving flat cards, but
the better to guide the revolving flats on their sliding surfaces, the projection f of the
first described arrangement is divided into two lugs, and through corresponding
holes in these lugs, the bolt-g-is-inserted. This bolt is held in place by a set screw,
the pointed end of which takes into an annular groove in the bolt. A head is formed
on the holt g to facilitate its removal. By this means, the point of connection of the
chain with the revolving flat will be exactly over the bearing surface of the elastic
plate c, and a more perfect guiding of the revolving flats will be ensured. To prevent
the sagging of the flats, which are now made of considerable length, the depth of the
web is increased, especially at the middle of the bar, as shewn at i, Fig. 7, which
represents a flat card complete, but on a reduced scale.-The adjusted and uniform
position of the teeth with respect to the drum, is thus ensured throughout the entire
length of the flat.
From the foregoing it will be understood that the liko provision for adjusting the
flais is made at opposite ends thereof; thus, each flat will be fitted with 4 set screws e e¹,
by which means the exact desired position of the card teeth may be ensured and
maintained.
Having now particularly described and ascertained the nature of the said Invention
and in what manner the same is to be performed, as communicated to me by my
-Foreign Correspondent, I declare that what I claim is :-
1. In Carding Engines fitted with revolving flat cards, the twofold adjustinent of
the revolving flats, in their working position, radially and tangentially to the cylinder,
by means of two set screws e el at each end of each flat.
2. At each end of each revolving flat card, the combination of a spring plate c with
two set screws e el for the twofold adjustment of the said flats as described.
3. Fitting the boit g at each end of each revolving flat card in two uprights
f
so as to bring the point of connection with the endless chain immediately over the
sliding surface of the elastic plate c.
najili 30th dew of Annil 1987
NEWTON & SON,
Agents for the Applicant.