IMPROVEMENTS IN CARDING ENGINES
Year: 1884

page_text: I JOHN MUIR HETHERINGTON of the Vulcan Works Pollard Street Manchester
in the County of Lancaster Machine Maker do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN CARDING ENGINES" to be as follows:--
My Invention relates to the covering or enclosing of the upper part of the doffer
and of the adjacent part of the main carding cylinder of the carding engine and has
for its principal object to facilitate the adjustment of the parts. In the ordinary
carding engine the doffer cover is hinged to the frames between which the main
cylinder revolves so that when the cover is lifted it moves toward the main
cylinder. This necessitates the employment of separate parts to make up the
space between the knife and the doffer cover and involves separate adjustment
of the parts. In my Invention the doffer cover is hinged in any suitable manner
to blocks or parts which can be adjusted upon the framing or upon the pedestals
or end casings of the doffer toward and from the main cylinder the cover when
raised moving away from the said cylinder. The making up pieces are attached..
to the said cover or form a part of the same. The hinges are situated at the front
of the doffer axis and at the same level or at such a suitable level as that when the
cover is raised all parts of the curved surface which is concentric with the doffer
axis move further away from the doffer and the curved surface which is concentric
with the main cylinder axis moves away from the said cylinder. As the cards on
the main cylinder become reduced and the doffer is set up the parts carrying the
doffer cover hinges can also be set up or adjusted so as to maintain a suitably small
clearance between the cover and the carding surface. To enable the cover to be
adjustable independently of the doffer I prefer to make the cover to fit at the ends
upon flat surfaces which are parallel with the line of adjustment. The hinges may
be varied in position or even be dispensed with if the capability of adjustment be
retained.

page_text: I JOHN MUIR HETHERINGTON of the Vulcan Works Pollard Street Manchester
in the County of Lancaster Machine Maker do hereby declare the nature of the
said Invention for "IMPROVEMENTS IN CARDING ENGINES" 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 Invention relates to the covering or enclosing of the upper part of the doffer
and of the adjacent part of the main carding cylinder of the carding engine and has
for its principal object to facilitate the adjustment of the parts. In the ordinary
revolving flat carding engine the doffer cover is hinged to the frames between
which the main cylinder revolves so that when the cover is lifted it moves toward
the main cylinder. This necessitates the employment of separate parts to make up
the space between the knife and the doffer cover and involves separate adjustment
of the parts. In my Invention the doffer cover is hinged in any suitable manner
to blocks or parts, which can be adjusted upon the framing toward and from the
main cylinder the cover when. raised moving away from the said cylinder. The.
making up pieces are attached to the said cover or form a part of the same. The
hinges are situated at the front of the doffer axis and at the same level or at such a
suitable level as that when the the cover is raised all parts of the curved surface
which is concentric with the doffer axis move further away from the doffer and the
curved surface which is concentric with the main cylinder axis moves away from
the said cylinder To enable the cover to be adjustable independently of the
doffer I make the cover to fit at the ends upon flat surfaces which are parallel with
the line of adjustment.
In order that my Invention may be well understood I will refer to the
accompanying sheet of drawings drawn to scale. In the said drawings Fig: 1
represents a side elevation and Fig: 2 a front elevation of so much of a carding
engine as is necessary to the proper illustration of my Invention. In the said,
Figs. a is the doffer cover b. is a portion of the casing for the doffer and main
cylinder on one side of the engine the dotted circle c. indicating the doffer and the
dotted are d. the main cylinder. The doffer cover is attached to two side pieces e.
one at each end of the doffer. Each of these side pieces is formed or provided with
a leg or downward extension e¹ whereby it is hinged to a standard f. which is
bolted or secured to the underframing of the engine. The joint pins of the two
hinges on the two sides of the engine are arranged to be in line across the engine
so that the two side pieces e. carrying with them the doffer cover can be turned up
and over as indicated by the dotted lines. The side pieces e. also carry the making
up piece or picces g. so that when the doffer cover is raised access is had to the
main cylinder for grinding the same or for other purposes. Each standard is
adjustable upon the framing towards and from the main cylinder. In the example
the standard is connected by means of a screwed stud h. with a bracket . which is
firmly bolted to the framing and serves as an abutment or fixed point from which
the standard can be adjusted by turning nuts on the screwed stud. When the
adjustment has been effected the standard can be secured by means of a bolt k.

page_text: The upper edge 6 of the casing is made parallel with the line of adjustment or
thereabouts and the side piece e. rests upon this level edge at the point l. or is
otherwise suitably formed to rest or fit upon the casing. It will be seen that by
reason of this straight and level formation of the edge b¹ and of the undersides of
the side pieces e. the doffer cover can be set up or adjusted to any required extent
without altering the relations of the cover and the side or end casings b.
.
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 doffer cover resting upon flat or level surfaces b' and hinged to standards or
blocks f. which can be set up or adjusted upon the framing substantially as and
for the purpose set forth and indicated.