and in Apparatus therefor.
Year: 1885

page_text: and in Apparatus therefor.
We SAMUEL DAVIS of Leicester, Manufacturer, FRANK MOORE of Leicester
Manufacturer, and JOHN INGRAM COLTMAN of Leicester Machinist do hereby
declare the nature of the said invention for "IMPROVEMENTS IN THE MANU-
FACTURE OF RIBBED KNITTED FABRIC, AND IN APPARATUS THEREFOR
to be as
follows:-
The object of this invention is to construct apparatus to alter 2/1 or other
number of ribbed fabric to '/, i.e. putting a 1/₁ ribbed top on a 2/₁ ribbed fabric so
that the former may be continued to be worked and joined to the latter fabric
without interruption or lengthened stopping of machinery.
To illustrate the mechanism we obtain say a Scattergood's Patent frame which
has at the top of the machine a flat horizontal bed plate upon which the ordinary
jacks rest. To produce 2/1 (supposing the frame to have been set for the work) the
jacks are kept in their position to work in conjunction with the needles at the
front. To alter the fabric to /, rib it is necessary to withdraw from contact with
the needles a certain number of jacks-probably alternate ones.
As jacks on the same frame have usually one length of foot it is obvious that by
having the feet of those required to be withdrawn a little longer than the ordinary
ones they can be readily dealt with in changing the ribs seeing that the feet point
upwards in a vertical position. We therefore fix at the rear of the frame suitable
rests of angle or other iron running if preferable level with the bed of the frame-
upon these rests may be placed a suitable rod or shaft running if necessary from
one end to the other of the back of the frame.
This rod or shaft being preferably level with the bed of the frame and also with
the jacks we attach to it horizontally suitable plates of iron or other material
having on their under side a suitable groove or grooves or channels which are
arranged to fall on the long footed jacks required to be withdrawn for the 1/, rib
and also to replace them when necessary to re-operate with the needles for the
production of the 2/, rib.
A convenient rack appliance may be attached in a suitable position on the frame
to direct the backward and forward movement of the shaft and plates already
described.
Suitable spring catch cams are if necessary attached to the angle iron rests in
order to keep the shaft in the desired position and to regulate the return of the
jacks to the needles.

page_text: improvements in the Manufacture of Ribbed Knitted Fabric,
and in Apparatus therefor.
We SAMUEL DAVIS and FRANK MOORE of Leicester Hosiery Manufacturers
trading as "Davis Moore & Co" and JOHN INGRAM COLTMAN Machinist and
Manager in the employ of the said firm 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 this invention is to construct apparatus to alter 2/1 or other
number of ribbed fabric to 1/, i.e. putting a 1/1 ribbed top on a 2/1 ribbed fabric so
that the former may be continued to be worked and joined to the latter fabric
without interruption or lengthened stopping of machinery.
To illustrate the mechanism we obtain say a Scattergood's patent frame"
which has at the top of the machine a flat horizontal bed plate upon which the
ordinary jacks rest.
To produce 2/1 (supposing the frame to have been set for this work) the jacks
are kept in their position to work in conjunction with the needles at the front. To
alter the fabric to /, rib it is necessary to withdraw from contact with the needles
a certain number of jacks probably alternate ones.
As jacks on the same frame have usually one length of foot it is obvious that by
having the feet of those required to be withdrawn a little longer than the ordinary
ones they can be readily dealt with in changing the ribs seeing that the feet point
upwards in a vertical position We therefore fix at the rear of the frame suitable
rests of angle or other iron running if preferable level with the bed of the frame
upon these rests may be placed a suitable rod or shaft running if necessary from
one end to the other of the back of the frame.
This rod or shaft being preferably level with the bed of the frame and also with
the jacks we attach to it horizontally suitable plates of iron or other material
having on their under side a suitable groove or grooves or channels which are
arranged to fall on the long footed jacks required to be withdrawn for the 1/1 rib
and also to replace them when necessary to reoperate with the needle for the
production of the /, rib.
A convenient rack appliance may be attached in a suitable position on the frame
to direct the backward and forward movement of the shaft and plate already
described.
Suitable spring catch cams are if necessary attached to the angle iron rest in
order to keep the shaft in the desired position and to regulate the return of the
jacks to the needles.
Referring to the accompanying drawings Figure 1 is a perspective view of the
complete apparatus looking at it from the rear. Figure 2 is an enlarged view of
the hand lever for operating the bar F.
Figures 3 and 4 show in detail the end plates G with locking mechanism for
securing the shaft F in position.
A is a rocking shaft mounted in bearings B attached to the framing. of the
machine. On this shaft A is mounted a hand lever C with its handle extending

page_text: towards the front of the machine and has its opposite upper end formed as a fork
which operates the stud E. This stud E is mounted in a cranked lever D attached
to the bar F. At each end of the bar F horizontal angular plates extend forward
and backward; near the end of each of these plates studs F¹ are fixed, which engage
in vertical plates G. The vertical plates G which are secured to the frame of the
machine are provided with horizontal slots which have recesses G¹ near their front
ends in the upper side. At the joints where these recesses occur spring catches G²
are fixed which engage with the studs F¹ attached to the angle plates mounted on
the front side of the bar F. In this angle plate a spiral spring engages, its opposite
end engaging with a rod H³ attached to the plate G shown in detail in Figures 3
and 4. On the horizontal bar F plates H are secured having their opposite lower
edges formed with a groove which engage with jacks H H. The bar F is
provided with a handle I for actuating it and the plates secured to it.
The action of the machine is as follows:-The operator depresses the handle C
which causes the cranked lever D to operate the bar F and the grooved plates are
lifted out of contact with the jacks H¹. The bar F is now free to be moved by the
handle I and can be drawn forward to allow the grooved plate to engage with the
long footed jacks leaving the short footed ones in the desired position. The
recesses G² are so formed that when the plates are drawn over the surface of
the frame the front bearings may have room to rise to allow the grooved plates to
fall on the long footed jacks the spring catches retaining the stud F¹ in the desired
position. The spiral spring H2 serves to keep the stud F¹ in contact with the
notches G¹ and catches G².
In some instances the plate H mounted on or attached to the bar F has its front
edge simply turned down at right angles instead of having a groove in this case the
hand lever C for actuating the bar F is omitted, this enables the operator by means
of the handle I to simply lift onto and shift the long footed jacks and replace them
in the required position.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
1. In apparatus for producing ribbed fabrics, mechanism for engaging and
disengaging the plate H with the jacks H substantially as and for the purpose
described.
2. In apparatus for producing ribbed fabrics the rocking shaft A actuated by the
hand lever C communicating motion through lever D to bar F substantially as and
for the purpose specified.
Dated this 12th day of February 1886.
SAM DAVIS.
FRANK MOORE.
JOHN INGRAM COLTMAN.