CERTAIN IMPROVEMENTS IN APPA- RATUS OR MECHANISM TO BE EMPLOYED IN GRINDING CARDS' FOR CARDING ENGINES
Year: 1864

page_text: LETTERS PATENT to William Allen, of Cheadle, in the County of Chester,
Cotton Spinner, and William Johnson, of Newton Moor, in the same
County, Manager, for the Invention of "CERTAIN IMPROVEMENTS IN APPA-
RATUS OR MECHANISM TO BE EMPLOYED IN GRINDING CARDS' FOR CARDING
ENGINES."
Sealed the 3rd May 1864, and dated the 2nd January 1864.
PROVISIONAL SPECIFICATION left by the said William Allen and William
Johnson at the Office of the Commissioners of Patents, with their Petition,.
on the 2nd January 1864.
We, WILLIAM ALLEN, of Cheadle, in the County of Chester, Cotton Spinner,
and WILLIAM JOHNSON, of Newton Moor, in the same County, Manager, do
hereby declare the nature of the said Invention for "CERTAIN IMPROVEMENTS
IN APPARATUS OR MECHANISM TO BE EMPLOYED IN GRINDING 'CARDS' FOR CARDING.
ENGINES," to be as follows:-
Our Invention relates to that part of the apparatus employed in grinding
"cards" which is termed the "grinding roller," and is designed as an improved
substitute for other appliances hitherto used to effect the traverse or
reciprocating motion usually imparted to such rollers. The improvements
consist in the use of an endless band or chain passing round and driven by two
or more pulleys, to which band or chain a cranked or "bayonet-shaped "piece
is attached, one end of which swivels or turns in a "carriage" which traverses
on a rail or rails, and "clips" or holds the grinding roller at each end. by

page_text: means of antifriction rollers, so that as the strap draws the "bayonet piece'
round it gives motion to the "carriage," and so effects the reciprocating
traverse of the grinding roller, which slides on a bar, and is retained in position
by means of a moveable "key" sliding in a groove or "key way' in
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Allen and William Johnson in the Great Seal
Patent Office on the 18th June 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
ALLEN, of Cheadle, in the County of Chester, Cotton Spinner, and WILLIAM
JOHNSON, of Newton Moor, in the same County, Manager, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Second day of January, in the year of our Lord
One thousand eight hundred and sixty-four, in the twenty-seventh year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
us, the said William Allen and William Johnson, Her special license that we,
the said William Allen and William Johnson, our executors, administrators,
and assigns, or such others as we, the said William Allen and William Johnson,
our executors, administrators, and assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and vend,
within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "CERTAIN IMPROVEMENTS IN APPA-
RATUS OR MECHANISM TO BE EMPLOYED IN GRINDING CARDS' FOR CARDING
ENGINES," upon the condition (amongst others) that we, the said William
Allen and William Johnson, our executors or administrators, by an instru-
ment in writing under our, or one of our, or their, or one of their hands and
seals should particularly describe and ascertain the nature of the said Inven-
tion, and in what manner the same was to be performed, and cause the same
to be filed in the Great Seal Patent Office within six calendar months next
and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said William Allen, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement and accompanying Drawings (that is to say) -
Our Invention relates to that part of the apparatus employed in grinding

page_text: "cards," which is termed the "grinding roller," and is designed as an improved
substitute for other appliances hitherto used to effect the traverse or reci-
procating motion usually imparted to such rollers. The improvements consist
in the use of an endless band or chain passing round and driven by two or
more pulleys, to which band or chain a.cranked or "bayonet-shaped " piece is
attached, one end of which swivels or turns in a "carriage" which traverses
on a rail or rails, and "clips" or holds the grinding roller at each end by
means of antifriction rollers and by a fork in the centre, so that as the strap.
draws the "bayonet piece" round it gives motion to the "carriage," and so.
effects the reciprocating traverse of the grinding roller which slides on a bar
and is retained in position by means of a moveable "key" sliding in a groove
or "key way" in the bar.
In order that the Invention may be better understood and explained in
detail, we have hereunto attached a Sheet of Drawings made upon a scale
of about one inch and a half to the foot, similar letters of reference being.
marked upon corresponding parts in all the Figures.
Fig. 1 represents an end view of a carding engine, shewing an arrangement
whereby the cards on the main cylinder and doffer are ground or pointed
simultaneously, one separate grinding roller being used for the doffer, and two
for the main cylinder (or three, as in Fig. 3), by which means an equal
amount of grinding is given to the main cylinder and doffer in the same space
of time; Fig. 2 is a front elevation shewing the improved mechanism for
effecting the reciprocating traverse of the grinding roller; Fig. 4 is a plan
view shewing the grinding roller acting upon the surfaces of rollers used in
the carding engine, in which machine two card rollers are ground by one
grinding roller simultaneously; Fig. 5 represents another arrangement of
apparatus (similar to that seen in Fig. 2) for effecting the traverse of the
grinding roller, this Figure shews the apparatus applied on the framing without
the rollers, cylinders, or doffers being shewn.
In Figs. 1, 2, and 3, a, a, is the framing of the carding engine; b is the
main cylinder, and c the doffer; d, d, d, are the corrugated traversing grinding
rollers connected together (and supported as seen in Fig. 3) by the bar e which
is attached to the endless chain f passing round the pulleys g, g, which are
driven by the bevil gearing h, h, by the spur gearing strap and pulleys i, i, i,
which combination comprises the traversing motion, the rollers traversing to
and fro across the cards with the bar e. The rotatory motion of the rollers is
effected by means of the strap or cord k which passes round the pulleys 1, 1, 1,
on the ends of the shafts m, m, m, in which are longitudinal "key ways
guiding grooves; or the shaft may be fastened on one side, as shewn in Fig. 6,
" or

page_text: and the rollers traverse upon and rotate with the said shafts, the. rotatory
motion being derived from the strap and pulley n on the doffer shaft. The
grinding rollers are connected to the bar e by means of semicircular clips
which embrace the rollers at the centre of their length. In Fig. 5 another
arrangement of traversing motion is exhibited, in which the grinding roller is
embraced at each end by the bowls attached to the carriage o which traverses
on the rail p, and is connected to the endless strap q by a swivel or "bayonet
shaped" piece r, and the reciprocating traverse is effected from the shaft s
through the gearing t.
Having now described the nature of the said Invention, together with the
method of carrying the same into practical effect, we wish it to be distinctly
understood that we claim,-
First, effecting the reciprocating traverse of grinding rollers (for grinding
the "cards" in carding engines) by means of endless straps, bands, cords, or
chains.
Secondly, we claim the novel employment and use of more than one
grinding roller to be applied simultaneously in grinding the cylinder or doffer
in carding engines, as herein-before described, set forth, and fully illustrated in
the Drawings attached.
In witness whereof, I, the said William Allen, have hereunto set my
hand and seal, this Fourteenth day of June, in the year of our Lord
One thousand eight hundred and sixty-four.
Witnessed by
JOHN L. DAVIES,
Office for Patents,
4, St. Ann's Sq°, Manchester.
WILLIAM ALLEN. (L.S.)