Improvements in and in the Production of Card-grinding Rollers.
Year: 1886

page_text: Date of Application, 5th June, 1886
Complete Left, 5th Mar., 1887.
Complete Accepted, 5th Apr., 1887
PROVISIONAL SPECIFICATION.
Improvements in and in the Production of Card-grinding Rollers.
I JOSEPH STANDRING DRONSFIELD of the Atlas Works, Park Street, Oldham in the
County of Lancaster Machine Maker do hereby declare the nature of this Invention to
be as follows :-
My Invention relates to the rollers which are employed in the grinding of the card
clothing of carding engines. It is necessary to re-sharpen the cards of carding engines
at intervals as is well understood. This sharpening or grinding is usually or to some
extent effected by means of rollers which are covered with emery or with fillets of
emery coated material. In consequence of the high speeds imparted to these rollers in
modern practice it is importance that the rollers shall be truly balanced upon their axes
so that they shall run steadily without vibration and my invention has for its
principal object to obtain this result. I make each of the roller ends which
carry the cylindrical shell of the roller in two parts. One part is of an
annular form and is turned to fit the other part which is in the form of a
flanged boss which is keyed or secured to the roller shaft. The two parts are so
formed and are so turned and finished as that when bolted or secured together the
annular part will be concentric with the axis of the roller shaft. The annular
part is drilled or recessed at intervals or is adapted to receive balancing weights.
When the roller is so far completed as to be ready for being balanced I temporarily
secure weight holders upon the two ends of the roller shaft. These holders are turned
or formed true so as not to affect the balance of the roller and are formed with holes
or recesses to correspond in number and in radial and circumferential positions with
the holes or recesses which have been formed in the annular part as aforesaid. The
roller being mounted in balancing supports as is usual weights are applied to the said
weight holders to the extent and in the positions required to balance the roller so that
both ends will run steadily. When this is accomplished the shaft and bosses are
removed from the roller and the balancing weights are bolted or secured to the annular

page_text: parts in positions corresponding to their positions upon the said balance weight holders
the same fastenings being used in both cases so that when the parts of the complete
roller are again put together without the said weight holders the roller will run under
the same conditions as to balance as when balanced in the manner hereinbefore
described. The balance weights being applied inside the roller ends are concealed
when the roller is completed and access cannot be had to such weights without taking
the roller to pieces. The construction of the roller also facilitates the repair or renewal
of the shaft when it becomes untrue through wear.
Dated this 4th day of June 1886.
DUTTON & FULTON,
1, St. James' Square, Manchester,
Agents.

page_text: I JOSEPH STANDRING DRONSFIELD of the Atlas Works, Park Street, Oldham in the
County of Lancaster Machine Maker 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 Invention relates to the rollers which are employed in the grinding of the card
clothing of carding engines. It is necessary to re-sharpen the cards of carding engines
at intervals as is well understood. This sharpening or grinding is usually or to some
extent effected by means of rollers which are covered with emery or with filcts of
emery coated material. In consequence of the high speeds imparted to these rollers in
modern practice it is of importance that the rollers shall be truly balanced upon their
axes so that they shall run steadily without vibration and my invention has for its
principal object to obtain this result.
The nature and object of my invention and the manner in which I carry the same into
practical effect will be best understood when my invention is described with reference
to the accompanying drawings.
In the said drawings Fig. 1 represents a half section of one end of a grinding roller
constructed in accordance with my invention.
Fig. 2 is an end view of the roller.
In the said Figs. a is the shell of the roller, b. c is one of the roller ends and d is one
of the axles or journals. The roller end is formed in two parts b and c. The part b
which for convenience of description I will term a ring is annular in form. The said
ring is turned to receive the shell a and to fit the part c. The part c which I will term
the end is formed with a boss which is bored to receive the axle d which is tightly forced
into position as is usual. The said end is turned to fit the ring b and the two parts arc
connected together by means of screws e which pass through holes drilled in the end e
and are screwed into tapped holes in the ring b. It will be seen that the end e is
formed with an annular flange at c'. This flange is turned to fit well into the central
hole in the ring b so that when the two parts are secured together the ring shall be
truly concentric with the axis of the part d. The ring b is drilled or recessed to
receive balancing weights. In the example six holes gg are drilled in the said ring
and are countersunk on the outerside as seen in Fig. 1. When the parts b and c are
secured together the holes are concealed. When any weight required to effect the
balancing is very small such weight may be shaped to fit into the hole and may have a
conical head to suit the countersinking but when a larger weight is required such weight
is applied on the innerside of the ring and is secured in position by means of a cone headed
screw which fits the hole and screws into the weight. In Fig. 1a balancing weight his
represented as being secured in this manner. In the example the roller is supposed to
be covered with a strip of woven filet which is provided with a grooved or corrugated
coating of emery and is wound spirally upon the roller so as to form an envelope i the
end of the filet being secured at each end of the roller by means of a screw and
clamping plate k. When the roller is so far completed as to be ready for being
balanced I temporarily secure a weight carrier upon the axle at each end of the roller.

page_text: Figs. 3 and 4 illustrate a suitable form of weight carrier and Fig. 5 represents the
roller with the two weight carriers L in position upon the axles. Each weight
carrier is formed and turned true and if necessary is carefully balanced and rendered
capable of revolving steadily at a high velocity in order that the presence of the carriers
upon the roller axles shall not affect the balance of the roller. Each weight carrier is
formed with holes or recesses mm to receive balance weights and these holes or
recesses are made to be exactly the same in formation and number and to be the same
distances apart and the same radial distance or distances from the common axis as the
holes in the ring & so that each hole or recess in the said ring is represented by a
corresponding hole or recess in the weight carrier. The weight carriers are temporarily
fixed upon the axles by means of screws or by any suitable means so that they will
revolve with the roller the holes in being in line with the holes y in the ring b. When
the parts are so arranged the roller is mounted in the balancing supports and is
revolved at a high velocity as is usual and weights are applied to the weight carriers to
the extent and in the positions required to balance the roller so that both ends shall run
steadily. When this is accomplished the ends c are removed from the roller and the
balancing weights are withdrawn from the weight carriers and secured to the rings b
in positions corresponding to their positions upon the said weight carriers the same
screws or fastenings being used in both cases so that when the parts of the
complete roller are again put together without the said weight carriers the roller
will run under the same conditions as to balance as when balanced in the manner
hereinbefore described. In Fig. 5 the weight is represented in the position it would
occupy upon the weight carrier before being transferred to a corresponding position
upon the ring. The balance weights being applied inside the roller ends are
concealed when the roller is completed and access cannot be had to such weights
without taking the roller to pieces. The construction of the roller also facilitates, the
repair or renewal of the shafts or axles when they become untrue through wear. I do
not confine myself to the formation of six holes or recesses for balance weights or
balance weight fastenings nor to any particular number so long as the numbers and
positions in the ring and the weight carrier correspond.
Having now particularly described and ascertained the nature of the said invention
and in what manner the same is to be performed I declare that what I claim is :-
(1) The wire card grinding roller constructed substantially as set forth and indicated
with reference to Figs. 1 and 2 of the accompanying drawings:
(2) In a card grinding roller the annular part drilled or recessed to receive
balancing weights and the part e fixed upon the axle d both parts being turned true and
secured together so as to conceal the balancing weights or the fastenings for the same
substantially as set forth and indicated.
(3) In the balancing of card grinding rollers the weight carriers I, formed with
holes or recesses corresponding in number and position with the holes or recesses
formed in the roller ends to receive balancing weights or the fastenings for the same
substantially as and for the purpose set forth and indicated.
Dated 14411
1 1007