Year: 1888

page_text: RESERV
Date of Application, 31st Mar., 1888
Complete Specification Left, 7th Dec., 1888
Complete Specification Accepted, 8th Jan., 1889
I WILLIAM CAMPION 36 Blue Bell Hill Nottingham Machinist do hereby declare
the nature of this invention to be as follows:-
Each machine consists of a bed plate from which a bracket projects carrying an
axle provided with a circular bed, round which a cylinder with grooved points
projecting from its perhipery revolves, below the cylinder the axle terminates in a
slotted bearing in which a shaft revolves carrying a toothed pinion wheel at its outer
end which gears into a toothed ring on the lower edge of the point cylinder, within
the slot of the bearing, the axle is provided with a toothed ratchet wheel, racked tooth
by tooth by a clawker having one end rocking on a stud in the lower end of a rocking
lever, the upper of which engages with a link operated by an excentric carried
by a shaft above and at a right angle to the top of the point cylinder, the ratchet
wheel is prevented from turning backward by a stop paul which rocks on a stud
secured to the circular bed. The shaft carrying the excentric revolves in a double
ended bearing bracket projecting from the bed plate, the lower end of the shaft carries
a hook which revolves with it, this hook takes hold of a thread carried by a needle
which projects from the inner end of a bolt sliding in the lower part of the double
ended bracket, the sliding being effected by a stud which projects from the bolt
engaging with the lower end of a link which rocks on a stud projecting from the
double ended bearing bracket the upper end of the link is connected to the outer end
of a rod, operated by an excentric or a crank pin at the upper end of the shaft above
the cylinder. Between the ends of the bearing bracket the shaft carries a grooved
driving pulley having a stud on its lower side which engages with the excentric
operating the rocking lever carrying the ratchet wheel clawker, the back end of the
bearing bracket carries a bearing and axles for two grooved pulleys, a belt being
passed over these pulleys and round the grooved pulley before named and round a
fourth pulley on a main driving shaft communicates movement to tho several parts.
The knitted or looped fabric to be operated upon, is run on the points of the cylinder
loop by loop, and the stitching having been made by the needle passing its thread

page_text: through each loop of the fabric, the thread at each such passage being secured and held
by the revolving hook until the needle has passed its thread through the next loop of
the fabric and through the loop of thread formed by the hook at the previous stitch,
such movements being repeated until the stitching is finished, the fabric being
cleared in the usual way.
Dated this Twenty ninth day of March 1888.
I WILLIAM CAMPION 36 Blue Bell Hill Nottingham Machinist do hereby declare
the nature of this invention and in what manner the same is to be performed, to he
particularly described and ascertained in and by the following statement:-
DESCRIPTION OF THE DRAWINGS.
Figure 1 shows a side view of one of my improved turning off machines.
Figure 2 a plan of the same.
Figure 3 shows a cross sectional view of a circular bed and a grooved joint carrying
cylinder hereafter referred to.
Figures 4 show a plan and edge view of a guard ring and shield.
Figure 5 shows in plan a slotted bearing for the shaft of a toothed pinion wheel.
Figure 6 shows in plan portion of the point carrying cylinder, a guard and guide
plate, and the relative positions of a needle, and revolving hook, as the point of
the hook passes between the needle and the thread it carries.
Figure a side view of the hook, and
Figure 8 an enlarged side view of the thread carrying needle.
Each machine consists of a bed plate A from which a bracket A' projects,
carrying an axle A³, provided with a circular bed B round which a cylinder Ć
revolves, the upper edge of the cylinder and its inner inclined face have saw gates
cut in them of the required gunge and distance apart to suit the fabric to be stitched
and to receive the stems of points C³, "shown at Figures 1 and 6." Each point is
grooved at the top to receive the point of a needle which slides above it, the grooved
points project radially from the parhipery of the cylinder all round it and are firmly
held in position by clamping plates C, screwed to the cylinder. The cylinder has an
inner flange sliding on the bed B upon which it is held down by a ring B', screwed to

page_text: the bed, pressing upon the recessed upper edge of the flange. The axle A' terminates
in a slotted bearing C³ (shown in plan at Figure 5) in which a shaft revolves carrying
a toothed pinion wheel C' at its outer end which gears into a toothed ring 0, forming
the lower edge of the cylinder, within the slot of the bearing C³ the axle is provided
with a toothed ratchet wheel C the upper edge of which passes through a slot in the
bed B, and is racked tooth by tooth by a clawker C having one end rocking on a stud
in the lower end of a lever 0³, carried by an axle projecting from the lower bearing of
a double ended bracket hereafter described, the upper end of the lever C³, engages
with a link C operated by an excentric D, the ratchet wheel is prevented from
turning backward by a stop paul Co which rocks on a stud secured to the ring B' on
the circular bed B, to the lower edge of which a guard ring and shield C" shown
at Figures 4" and a conical shaped cover" shown only in section at Figure 1
secured by screws, the shield and cover enclose the pinion wheel C slotted bearings C³
and ratchet wheel C thus preventing the lubricating oil from soiling the fabric to be
stitched.
"
are
A shaft Dabove and at a right angle to the top of the point cylinder C revolves in
a double ended bearing bracket Di projecting from the bed plate A, the shaft D
carries the excentric D, which operates the rocking clawker lever before named.
The shaft D at its lower end carries a hook D shown in plan and side view at
Figures 6 and 7" securely held by a set screw shown at Figure 1, the hook revolves
with the shaft and takes hold of a thread carried by a needle which projects from the
inner end of a bolt F in which it is held by a set screw shown at Figure 6 the
projecting stem of the needle is grooved on the underside to receive the thread it
carries which is threaded through the eye of the needle from beneath and lies over
the needle above the recess shown in side view at Figure 8, next the eye, in this recess
the point of the hook enters between the needle and the thread as it secures a loop of
thread at each revolution.
The needle bolt F, slides to and fro in the lower part of the bracket D¹, the sliding
being effected by a stud which projects from the bolt engaging with the lower end of
a link F' rocking on a stud projecting from the bracket D the upper end of the link
engages with the outer end of a rod F operated by an excentric F³ carried by the
hook shaft below the hand wheel at its upper end.
Between the ends of the bearing bracket the shaft D carries a grooved driving
pulley F provided with a stud on its lower side which engages with a disk Fas
shown at Figure 1, a disengagement being effected by raising a lever Fe to lift a
forked slide which clips the boss of the driving wheel in the usual way, the back end
of the bracket D₁ carries an axle for two grooved pulleys F', a belt being passed
round these pulleys, round the driving pulley, and round a fourth pulley on a main
driving shaft communicates movement to the several parts. The thread the needle
carries is supplied from any suitable shaped cop placed upon a cop pin G
and passed over the loop of a guide wire 1, down and through the hole in the
guide pin 2, round the pin of the clamping disk 3, through the hole in the guide pin 4,
round a loop 5 which projects from the side of and slides to and fro with the needle
bolt F, the thread is then passed through a hole in the inner end of the bolt and
through the eye of the needle from beneath as before described, as the needle moves
outward the slack thread is taken up by the loop 5, the clamping disk" which is held
down by a spring within its bracket being raised by the curved lower end of a
lever 6 rocked by the levor F, to unclamp the thread while the loop 5, draws off a
sufficient length for the next stitch, the thread may be further tightened if required
by passing it through two or more slots in the tension plate carried by the guide
wire 1.
"
As the needle passes its thread through or over the fabric to be stitched, it passes
between the top of the grooved point carrying cylinder and the underside of the
narrow edge of a guard and guide plate shown in plan at Figure 6 secured to
the ring B on the circular bed B, portion of the narrow edge of the plate is cut away
on the lower side to allow free passage for the needio, the narrow edge of the plate
lying close to the top of the cylinder holds the edges of the fabric firm while the

page_text: needle is passing through. The fabric to be stitched has both edges run on the
grooved points of the cylinder and the stitching is made by the needle passing its
thread through both edges of the fabric the thread being secured by the revolving
hook, and held until the next movement of the needle has passed its thread through
both edges of the fabric and through the loop of thread secured by the hook at the
previous stitch, the first loop of thread being released by the hook as it secures the
second loop and draws it through the first loop such movements being repeated until
the stitching is finished, the fabric being cleared in the usual way.
I am aware that a revolving hook and a straight pointed needle has been used
before in combination with a revolving cylinder carrying round points on the lower
edge, known as the common stitching machine.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed 1 declare that what
1 claim is
1. The construction and employment of a revolving hook operating in conjunction
with a revolving cylinder carrying grooved points, and a thread carrying needle
having its point bent down so as to enter the groove of each point, substantially as
described for the purpose specified.
2. The construction and employment of an excentric De carried by the revolving
hook shaft D the link C for rocking the lever 08, to operate the clawker C sub-
stantantially as described and illustrated in-tho Drawings annexed.
ed this Sixth day of December 1888.
Dated
Witness,
H. W. GOUGH, C.E.,
Agent.
WILLIAM CAMPION.