Presser Stands for Knitting Machines.
Year: 1897

page_text: Date of Application, 23rd Feb., 1597-Accepted, 27th Mar., 1897
Presser Stands for Knitting Machines.
I, DANIEL HURLEY, Machinist, of Bennington, in the County of Bennington and
State of Vermont, United States of America, 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:-
My invention relates to supports for presser disks for knitting machine needles,
and has for its object to so construct and combine the several parts of the support
that the presser disk will be adjustable in every direction relative to the needles, and
also be very sensitive to the action of its spring. The function of the presser disk is
to press down the barbs of the needles to allow them to cast off the old loops and pull
the new loops through them.
When the needles commence to move up there are two series of stitches or loops
on them, and it is when the point of the barb in its upward movement arrives midway
between the two loops on the needles that the presser disk engages the barb and
presses it down thereby permitting the needle to cast off the old loop and draw the
new one through it. This point of engagement will differ with stitches of different
lengths and hence it is necessary to adjust the presser disk at different angles to cause
it to engage the barbs at the proper time.
Referring to the drawing;
Fig. 1. is an elevation of a portion of a knitting machine, showing the needle
cylinders with my invention attached thereto.
Fig. 2. is a side elevation of my improvement detached and on an enlarged
scale.
Fig. 3. is a front view of the presser disk and part of its support, showing in dotted
lines positions to which the disk can be adjusted; and
Fig. 4. is a top view of a casting which supports the presser.
Similar reference numerals indicate corresponding parts in each figure of the
drawing.
1 represents the upper and lower needle cylinders, and 2 the needles. 3 is the
ring or bed-plate which supports the upper needle cylinder. 4 is a depending tube
provided with a lateral arm 5 which is secured to the ring 3 by a bolt 6. A rod 7
fits within the tube 4 and is capable of rotary and longitudinal movement therein so
may be adjusted as desired and a set screw 8 passes through the tube 4 and engages
the rod 7 to lock the two together. The lower end of the rod 7 is flattened and to
it an inverted T shaped casting 9 is secured by a screw 10.
it
"
The horizontal arms of the casting 9 are formed with bearings 11, in which the
sliding rod 12 is supported to have free longitudinal movement. On the forward end
of the rod 12 a post 13 is pivotally mounted and may be held thereon in any
desired position by the set screw 14 which passes up through the end of the post 13
and engages the rod 12. The post 13 serves as a journal for the presser disk 15
which is held thereon by the collar 16 and screw 17 but which is free to have rotary
movement at all times.
18 is a lug extending laterally from the casting 9 and from this lug projects the
short guide pin 19 and the long guide pin 20. An arm 21 is attached to the rod 12
by a set screw 22 and its upper portion is provided with openings through which
the guide pins 19 and 20 pass. The outer end of the guide pin 20 is threaded and

page_text: on it a thumb nut 23 is screwed. Between the nut 23 and arm 21 a coiled spring 24
surrounds the pin 20, and the tendency of this spring is to force the arm 21 and with
it the rod 12 and disk 15 toward the needles. This movement is, however, regulated
and restricted by the thumb screw 25 which passes through a lug 26 secured to the
rod 12 and engages one of the bearings 11 on the casting 9."
From the foregoing description it will be seen that by loosening the set screw 11,
the disk can be turned at an angle in either direction on the rod 12 as indicated in
dotted lines in Fig. 3. Also that by loosening the screw 1. the casting 9 and with
it the disk 15 can be adjusted at any desired angle relative to the rod 7 and thereby
move the point of contact between the disk and the needles either upwardly or
downwardly as may be desired.
It will also be seen that the disk is very sensitive to the action of the spring 24
as practically all the friction to be over come is that between the sliding rod 12
and the bearings 11. The spring 24 being on a separate rod and not enclosed, is
free to expand and contract without any friction whatever, and as the sliding rod 12
is also exposed it can be easily kept free from matter that might tend to obstruct
its movement. This is a great improvement over the ordinary construction of these
devices in which the sliding rod, which carries the disk, is surrounded with a coil
spring and the rod and spring are enclosed by a sleeve.
Having now fully described and ascertained the nature of the said invention,
and in what manner the saine is to be performed, I declare that what I
claim is:
1. The combination in a knitting machine, of a support attached thereto and
provided with bearings, a sliding rod supported in said bearings with means for
regulating and restricting its movements, a presser disk carried by the sliding rod, a
fixed rod extending from the support, an arm connected to the sliding rod and fitting
loosely over the fixed rod, an adjustable stop on the end of the fixed rod, and a
spring between the said stop and arm, substantially as and for the purpose set
forth.
2. The combination in a knitting machine, of a presser disk and a support therefor
consisting of a tube screwed to a frame of the machine, a rod adjustably secured in
the tube, a casting pivotally connected to the said rod and provided with bearings, a
sliding rod supported in said bearings, a post carrying the presser disk adjustably
pivoted on the sliding rod, a fixed rod extending from the casting, a stop on the end
of the fixed rod, an arm connected to the sliding rod and fitting loosely over the fixed
rod, and a spring between the said stop and arm, substantially as and for the purpose
set forth.
3. The combination in a knitting machine, of a presser disk and a support therefor
consisting of a tube secured to the frame of the machine, a rod adjustably secured in
the tube, a casting pivotally connected to the said rod and provided with bearings, a
sliding rod supported in said bearings, a fixed rod extending from the casting, a stop
on the end of said rod, an arm connected to the sliding rod and fitting loosely over the
fixed rod, a spring between the said stop and arm, a device to adjust and limit the
movement of the sliding rod in its bearings, and a post carrying the presser disk
adjustably pivoted on the sliding rod, substantially as and for the purpose set forth.
Dated this 23rd day of February 1897.
CHARLES JUNGE,
Agent for the Applicant.