An Improved Method of Attaching the Cams to the Screws of Gill- boxes Used in the Preparation of Fibrous Materials and to similar Screws Used for other Purposes.
Year: 1886

page_text: Date of Application, 22nd Oct, 1886.
Complete Left, 9th May, 1887.
Complete Accepted, 21st June, 1887.
An Improved Method of Attaching the Cams to the Screws of Gill-
boxes Used in the Preparation of Fibrous Materials and to
similar Screws Used for other Purposes.
I, WILLIAM WALTON of 19 Aireworth Street, Keighley, in the County of
York, Foreman-Mechanic, do hereby declare the nature of my invention for AN
IMPROVED METHOD OF ATTACHING THE CAMS TO THE SCREWS OF GILL-BOXES USED IN
THE PREPARATION OF FIBROUS MATERIALS, AND TO SIMILAR SCREWS USED FOR OTHER
PURPOSES, to be as follows:-
This invention consists of an improved method of attaching the cams to the screws
of gill boxes (hereinafter styled gill-screws) used in the preparation of fibrous
materials, and to similar screws used for other purposes, whereby the strength and
durability of same is enhanced while the cost of production is diminished.
Heretofore these cams have been attached to their respective screws by being
dovetail-jointed and rivetted thereto, but according to this invention a boss is formed
on them, through which boss a hole is made, the same being screwed to fit a thread
formed on the elongated body part of the above named gill-screw.
From this it will be seen that when the said cam is twisted on to the elongated
end of the before named gill-screw, by its thread being made to wind in a contrary
direction to that in which the gill-screw turns or moves when in use, the said cam will
have a tendency to become more firmly twisted or screwed thereon by the said motion
of the gill-screw and the work the cam has to perform. And in order to keep the said
cam in its proper position or to keep it from being accidentally loosened by the gill-
screw being turned in the wrong direction, a hole is bored diametrically through its
boss and the elongated end of the gill-screw, into and through which a pin is tightly
driven. Should the gill-screw be a single, double, or any other number of screwed or
grooved one, the required number of cams to suit the number of groves may be formed
on one and the same boss, as will be readily be understood.
The elongated end of the gill screw is made for a suitable distance, a little thicker
than the screwed part on which the cam's boss is twisted, so as to form a suitable
prominence for the said boss to press against when screwed tightly on.
Dated th: 01 love of Ontahan 188

page_text: An Improved Method of Attaching the Cams to the Screws of Gill
Boxes Used in the Preparation of Fibrous Materials and to
similar Screws Used for other Purposes.
I WILLIAM WALTON of 19 Aireworth Street, Keighley, Yorkshire, Foreman
Mechanic, 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 :-
That is to say it consists of an improved method of attaching the cams to the
screws of gill-boxes (hereinafter styled gill-screws) used in the preparation of fibrous
materials, and to similar screws used for other purposes, whereby the strength and
durability of same is enhanced whilst the cost of production is diminished, and in
order that this said invention may be more readily understood I will proceed to described
it reference being had to the accompanying sheet of drawings illustrative thereof;
wherein fig. 1 is a side elevation of a gill-screw and cam, fig. an end view of fig. 1,
figs. 3 and 4 are detail drawings of gill screw and cam respectively, and figs. 5 and 6
are detail drawings of modifications thereof.
Heretofore these cams a have been attached to their screw b by being dovetail-jointed
and rivetted thereto, but according to this invention a boss c is formed on, or in
connection with them, through which boss c a hole is made, the same being screwed
to fit a thread d (fig. 3) formed on the body part of the gill-screw b.
From this it will be seen that when the said cam a is twisted with its boss c on the
thread d of the before named gill-screw b, by its said thread d being made to wind in
a contrary direction to that in which the gill-screw 6 turns or moves when in
the
use,
said cam a by its screwed boss c will have a tendency to become more firmly twisted
or screwed thereon by the said motion of the gill-screw b and the work the cam a has
to perform. A small shoulder fis formed on the end of the gill-screw b for the boss c
of the cam a to press or "bed "against when twisted or screwed tightly on. And in
order to keep the said cam a in its proper position, or to keep it from being
accidentally loosened by the gill-screw 6 being turned in the wrong direction, a hole
is bored diametrically through its boss c and the end of the gill-screw b, into and
through which a pin e is tightly driven.
Of course it may be thought sufficient to hold or fasten the cam a with the pin e
without the thread d being employed, or again instead of using the thread d a square
part g (fig. 5) may be formed and the boss c¹ of the cam a may be made to suit, which
with the pine or any suitable key, might accomplish the object desired, but not so
efficiently as the first described method, which I preferably employ.
In all the drawings the gill-screw b, where seen, is shewn as having a double
groove, and consequently the boss c has two cams a attached to it; however it will
readily be seen that the boss c may be used with a single grooved screw and so require
only one cam a attaching to it, or again it may be used with a gill-screw having three

page_text: or more grooves and so require three or more cams a attaching to it, without departing
from the nature of this invention.
I would have it understood that when cams, constructed as herein before described,
"first
are employed in connection with preparing machinery known as preparer," gill-
box etc., they are especially applicable to the bottom gill-screw used therein, since in
connection with this they have more work to perform and consequently require more
securely fixing than the cams used in connection with the top gill-screw, as is well
known.
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 :-
1. The cam a having the boss c, in combination with the pin e and the screw b
having the shoulder f and the thread d formed thereon, substantially as and for the
purposes specified.
2. The cam a having the boss c in combination with the pin e and the screw b
substantially as and for the purposes specified.
3. The cam a having a boss c¹ in combination with the screw bhaving a square
part g formed thereon, in the manner and for the purposes substantially as specified.
WM. WALTON.
By his Agents,
Moorhouse & Hey.