Improvements in means for securing card fillets or card clothing to cylinders or rollers
Year: 1888

page_text: I, GEORGE HALL SCHOFIELD, of Wellington Mills, Greenfield, near Oldham, in the
County of Lancaster, Cotton Spinner do hereby declare the nature of this Invention
to be as follows:-
•
My Invention relates to Improvements in means for securing card fillets or card
clothing to cylinders or rollers.
It is now customary to drive taper wooden pegs or plugs into holes of corre-
sponding taper formed in the shell of the cylinder or roller and then to nail the card
fillets or card clothing to the said plugs. The great disadvantage of this system
is that the wooden plugs are frequently working out of the taper holes and have to
be replaced thereby necessitating constant care and attention and corresponding
expense.
"
Now my Improvements consist mainly in tapping each taper hole with a screw
thread instead of making the said holes smooth or plain as heretofore. I then drive
in the taper plugs of wood or other suitable material, a turn or turns, if found
desirable, being given to the plugs when nearly driven home so as to firmly secure
them in the holes. A glued wooden peg is then driven as usual into each plug
whereby the plug is still further wedged or forced into the screw thread. In this
way the taper plugs are held with great firmness in their holes and, after dressing
off the pegs and plugs, the card fillets or clothing can be nailed or secured to the
plugs in the usual or any convenient manner.
If found advantageous or desirable I may form each plug with a thread corre-
sponding to the thread in the taper hole and screw the plugs into the taper holes
instead of driving them; or I may use screwed parallel plugs in combination with
screwed parallel holes; or in place of threading the taper holes I may cut a circular
groove or two or more circular grooves in each taper hole and drive the taper
plugs.

page_text: COMPLETE SPECIFICATION.
Improvements in Means for Securing Card Fillets or Card Clothing
to Cylinders or Rollers.
I, GEORGE HALL SCHOFIELD of Wellington Mills, Greenfield, near Oldham, in the
County of Lancaster, Cotton Spinner, do hereby declare the nature of this Inven-
tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement :-
My invention relates to improvements in means for securing card fillets or card
clothing to cylinders or rollers.
It is now customary to drive taper wooden pegs or plugs into holes of corresponding
taper formed in the shell of the cylinder or roller and then to nail the card fillets or
card clothing to the said plugs. The great disadvantage of this system is that the
wooden plugs frequently come loose.
Now my improvements consist mainly in tapping each taper hole with a screw
thread instead of making the said holes smooth or plain as heretofore. I then drive
in the taper plugs of wood or other suitable material, a turn or turns, if found
desirable, being given to the plugs when nearly driven home so as to firmly secure
them in the holes. A glued wooden peg is then driven as usual into each plug
whereby the plug is still further wedged or forced into the screw thread. In this way
the taper plugs are held with great firmness in their holes and after dressing off the
pegs and plugs, the card fillets or clothing can be nailed or secured to the plugs in
the usual or any convenient manner. If found advantageous or desirable I may form
each plug with a thread corresponding to the thread in the taper hole and screw. the
plugs into the taper holes instead of driving them; or I may use screwed parallel
plugs in combination with screwed parallel holes; or in place of threading the taper
holes 1 may cut a circular groove or two or more circular grooves in each taper hole
and drive the taper plugs.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying Sheet of Drawings reference being had to
the figures and letters marked thereon.
Fig. 1 is a side view of the main cylinder of a carding engine ready to receive its
card clothing.
Figs. 2, 3, and 4 are sectional views full size of a small portion of the body of, a
main cylinder illustrating. the application of my improvements.
Fig. 5 represents a square ended wooden plug for screwing into a threaded taper
hole, and Fig. 6 shows two views of an ordinary pegged taper plug.
Fig. 7 represents a square ended screwed plug prepared according to my invention
and shown in its different stages.
a designates the body or shell of the main cylinder of a carding engine and a¹ one
of its ordinary inner flanges to which arms 6.forming the ends of the cylinder are
usually, secured by bolts c as shown in Figs. 2 and 3.
In the ordinary course prior to the cylinder being covered with card fillet several
rows of holes d say six are drilled across the full width of the cylinder about one

page_text: inch apart and one or two rows of holes d' at shorter intervals i.e. two to three inches
apart around and near each end of the cylinder where the ends of the fillet comes
and is secured to the plugs which have previously been driven into the ordinary smooth
taper holes the plugs being generally wedged out to fill the holes by driving glued
pegs through them.
According to my invention I make the holes taper as shown in Fig. 2 or parallel
as in Fig. 3 and then tap each hole with a screw thread as shown.
I wish to point out that when taper holes are employed all or any number of them
may be tapped it is however particularly desirable to tap or thread all the holes d' in
the end portions of the cylinder where the ends of the fillet are secured. When
parallel holes are used they would all be threaded.
In Fig. 2 are shown taper holes several of which are threaded and one is plain all
filled with plugs e into which pegs have been driven as usual. The plugs may be
plain taper in form as shown in Fig. 5 and may be driven into the holes and then
given if desirable a turn or turns to secure them more firmly or I may make special
plugs as shown in Fig. 7 shaped and threaded so as to correspond with and screw into
the tapped holes.
The plugs e are shown in Figs. 5 and 7 with square ends to facilitate screwing
them into position in the threaded holes and pegs f may or may not be used to wedge
the plugs e into the threaded holes.
In Fig. 3 the threaded parallel holes are shown filled with plugs e which are
wedged into position by pegs f the plugs e may either be plain smooth pieces
screwed into the threaded holes or they may be threaded previous to use.
As an alternative for the screw threads in the holes one, two, or more circular
grooves may be formed as shown in Fig. 4 in either taper or parallel holes into
which holes suitably shaped wooden plugs may be driven the plugs when wedged out
by pegs being forced into the grooves which would assist in holding them securely
or instead of wooden plugs molten lead or other suitable material might be run
into the grooved holes and allowed to set when it would be secured in position by the
grooves.
Plugs secured in threaded holes or in grooved holes as herein set forth will be
found to overcome the defects which arise under the ordinary methods of plugging
smooth taper holes.
Although I have referred to the main cylinder of a carding engine only it is
obvious that my improvements may be applied similarly to other cylinders and
rollers.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. Securing plugs of wood or other suitable material in screw threaded or grooved
holes formed in the shells of cylinders or rollers substantially as herein set forth for
the purposes specified.
2. The several combinations with screw threaded or grooved holes formed in the
shells of cylinders or rollers, of plugs specially prepared or otherwise adapted to fit
in said holes substantially as and for the purposes herein described and as illustrated
by the Drawings annexed.
1:1
11 1
ค A
: 1000
H. B. BARLOW,
17, St. Ann's Square, Manchester,
Agent for Applicant.