Year: 1887

page_text: Date of Application, 29th June, 1887
Complete Left, 28th Mar., 1888
Complete Accepted, 29th June, 1888
ARTHUR CHAPMAN Vulcan Iron Works, Spencer Street Rhodeswell Road, Lime-
house in the County of Middlesex Engineer do hereby declare the nature of this
invention to be as follows:-
1st. Improved method of accurately adjusting the Stitch Cam, consisting of a
Moveable Disc fitting into a recess on outside of Shell, & having a curved Slot therein
actuating the Stud or Stitch Cam, & being provided with an Indicator for shewing the
position of the Cam.
2nd. Improved Welting Cam Cap consisting of a Circular Disc let into underside
of Cap, & having a Groove therein for the Butts of the needles to pass through, by
means of a leaver the Disc is made to partially revolve, thus altering the position of
the Groove, & throwing the needles in or out of action. This Disc is preferably made
conical, to break the square line of Joint.
3rd. Improved method of Adjusting the relative position of Needle Cylinder, &
Ribbing Dial consisting of a solid projection inside the needle cylinder, engaging
upon an adjustable quadrant affixed to under side of ribbing dial, & secured by
the nut.
4th. Improved method of adjusting the height, & position of Ribbing Arm, con-
sisting of a moveable piece on Shell under the Ribbing Arm, & provided with Angles,
or Steps for regulating the height of the Arm.
5th. The combination of the above, or,,any of them, with any Circular Knitting
Machine.
2 1
1007

page_text: Improvements in Circular Knitting Machines.
I ARTHUR CHAPMAN Vulcan Iron Works, Spencer Street Rhodeswell Road, Lime-
house in the County of Middlesex Engineer 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 :-
The object of the first part of my invention is the more accurate adjustment of the
stitch cam in the Griswoll, & other Circular Knitters enabling any number of articles
to be made exactly alike, & consists of a circular disc, a. Fig. 4 working in a recess in
the shell A, and having a curved slot engaging on a stud in the cam, on partially
revolving this disc, by means of lever 7. an accurate vertical adjustment is given to
the cam the lever also forming an indicator showing on the figured line the exact
position of the cam thus ensuring a definite length of stitch for any given
position.
Another part of my invention is an improved Welting Cam Cap B Fig. 1, 2 & 3
having a circular disc, c. let into the under side of cap, such dise having a groove across it
to let the butts of needles pass through, and having an end projecting through the top
of cap, and engaging upon lever d, on moving this lever, the cam is partially revolved
thus altering the position of the groove, and throwing the needles in or out of action,
giving a positive movement to the needles. The disc, c. may be made conical as
shewn in Fig. 3, to break the square line of joint with the fixed cam.
Another part of my invention consists of improved methods of adjusting the relative
position of needle cylinder, and ribbing dial, this is effected by a solid projection
inside needle cylinder C. Fig. 3, engaging upon an adjustable quadrant b. Fig. 3 & 5.
affixed to under side of dial D, and working into a toothed pinion forming the nut,
this nut being tightened by turning the spindle, the quadrant is held in position thereby,
or it may be effected by a solid projection on dial D engaging on the pivotted arm E
Fig. 4 which can be secured in any desired position by the nut, p.
A further part of my invention consists of improved methods of adjusting the
vertical position of ribber arm, & dial, & is effected by affixing to shell A Fig. 1 & 4
an inclined, or stepped segment F adjustable on the circumference of the shell A, the
bottom of ribber arm G Fig. 1, 3, & 4 is inclined, or stepped to match, & rests upon
this adjustable segment, the height of the arm being regulated by its position, &
secured by the wing nut in the ordinary way. I also make the ribbing spindle H
Fig. 1 & 3 with a recess under the head, into which the head of slide, e. engages, the
head of slide fitting between the shoulders of spindle, the spindle is raised or lowered
as the position of slide is altered upon its stud, and is secured in any desired position
by the nut f. on the side of the arm.
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. The slotted disc for regulating the position of the stitch cam as shewn, &
described

page_text: 2. The moveable cam in the cani cap for the purpose of throwing the needles in or
out of action as shewn, & described.
3. The adjustable quadrant on the dial actuated by moving the dial round, & secured
by nut as shewn & described.
4. In conjunction with the parts mentioned in Claim 3 the pivotted arm for engaging
on a fixed projection on the dial as shown.
5. The curved. incline on the shell for adjusting the vertical position of arm as shewn
and described.
6. The spindle and slide for adjusting the height of dial as shewn and described.
7. The combination of the various features hereinbefore described, or any of them
in any circular knitting machine.