Improvements in and connected with Flat Hosiery Frames.
Year: 1897

page_text: Date of Application, 18th May, 1897-Accepted, 31st July, 1897
COMPLETE SPECIFICATION.
Improvements in and connected with Flat Hosiery Frames.
I, FRIEDRICH MAX HILSCHER, of 8, Becker Strasse of Chemnitz, in the Kingdom
of Saxony, German Empire, manufacturer 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:-
In flat hosiery frames there is generally one row of meshes produced during
one rotation of the cam-shaft a (Figure 1) and also the fashioning is effected during
the time in which said shaft makes one rotation. The formation of meshes and the
fashioning are, as is known, not only two different works but these works are
effected at different times, and in general there is in a flat hosiery frame a cam
for actuating the parts that form the meshes and another cam that actuates the
fashioning-apparatus, and said cams are arranged side by side on a common shaft
which may be displaced in its longitudinal direction. Therefore the levers that
transmit the motion from the two cams to the working-parts of the frame are
operated either from one cam or from the other cam, according to the position of
the cams, or of the shaft carrying said cams respectively, and the levers that are
inoperative during one or the other phase are supported during that time by a
circular disk or disks which rotates or rotate together with the shaft in question.
The curvatures and radii of the cams correspond in part to the curvatures and
radii of said disks, and the shaft is displaced in the moment in which the parts of
equal curvatures and equal radii of the cams and disks move along below the levers
mentioned, so that in this moment the levers may pass from the cams to the disks,
or reversely.
I have shown in Figure 9 a cam and a disk of the known arrangement afore
mentioned. b is the circular disk, is the cam (shown in dotted lines only) and
the way I-II indicates those parts of the peripheries of b and c where the curva-
tures and radii of said parts are of equal form and length. The cam and the disk
are thus displaced whilst the part I-II of their peripheries moves along below
the lever (not shown). As long as this lever is supported by the circular disk
the fashioning apparatus is out of work and the frame produces regular rows of
meshes; but when the disk b and the cam c have been displaced so that the said
lever is supported not any more by the disk but by the cam, then the fashioning
apparatus is operated by said cam.
To make my invention perfectly clear I will in the following describe the co-
operation of the fashioning-apparatus and the cam c, but prior thereto I refer to
Figure 1 the upper half of which shows the arrangement of the fashioning-
apparatus in a flat hosiery frame. The fashioning-apparatus m is held from the
frame M by means of the arm in which is hinged at m² to said frame, and con-
nected at m³ with the upper end of a bar h; at its lower end the latter is
connected with a lever h¹ fulcrumed at h to the frame M, and this lever has a
roll which must be supposed to roll along upon the periphery of the cam c
(Figure 9). This arrangement and manner of actuation of the fashioning-
apparatus is as known as this apparatus itself and its manner of operation. I
therefore limit myself to explaining that when the fashioning apparatus is

page_text: actuated by the cam c, and the roll has arrived at the point III of the cam,
the covering needles have reached the frame needless (Figure 3) which
latter during that time have been caused to advance towards the needles by the
means known for that purpose. The Roman numbers III-VII distributed around
the circumference of the cam c (Figure 9) correspond to the Figures 3-7; or,
in other words, the positions shown in these Figures occur when the roll 3 moves
over the respective parts III IV
of said cam, or said positions depend
on the configurations of said parts respectively. Therefore, on the roll h³ arriving
at IV the points of the covering-needles press upon the shafts of the frame needles
(Figure 4), and thereafter, when the roll has arrived at V (or, more precisely,
the part V has arrived below that roll) the needles d and s have got lowered so
far that the meshes of the fabric we get from the needless to and upon the needles d
(Figure 5). On the way from V to VI the needles d rise together with the fabric
(Figure 6) during the time in which the roll moves from VI to VI" the needles
are laterally displaced for the way necessary to transfer the meshes to the respec-
tive other frame-needles, and when the part VII arrives below the roll 3 then the
needles d have got down upon the respective other frame needles, as shown in
Figure 7. The fashioning is now finished, and the covering needles d rise to their
position of rest (Figure 8) whilst the part VII-I passes along below the roll 13 of
the lever '. When the roll has arrived at I the came and the disk are axially
displaed for such a way that the said roll gets upon said disk, as before described.
It is thus to be seen that the fashioning must be effected during the time in
which the parts II, III, III IV,
VII I pass along below the roll ³;
that time is less than that of one rotation of the shaft a.
If the hosiery frame shall run at a high speed that time is too short to effect the
fashioning in the proper manner.
The object of my invention therefore is to overcome this drawhack, and I
attain that purpose by employing for the fashioning apparatus two cams instead
of one, and by shaping these cams in such a manner that the fashioning may
commence when the shaft is displaced, and may cease only after the formation of
meshes has again begun. I dispense with a circular disk such as (Figure 9)
and for keeping the fashioning apparatus in its uppermost position, or in its
position of rest respectively, I provide a lever g (Figures 1 & 2) that is supported
at by a suitably located projection m of the frame M. The lever g has an
upwardly extending projection that forms a support for an adjustable screw h²
held by the free and of the lever h. The lever ggg is by means of a spring
(not shown) held or supported in such position that the screw h² of the lever h¹
rests on the upwardly extending projection g², which draws the said lever g g¹ g³
against a stationary part,
in such a manner, that the arm g of the lever
can move off the cams but cannot be moved towards the same.
There is besides the cams and a third eam or eccentric f (Figures 1 & 2),
one side or surface of which is provided with a circular ledge. This ledge
serves for operating the lever ggg after the shaft a has been displaced as will
now be more fully described.
Supposed, the cams band f have just reached the position shown in Figure 1,
and the shaft with the said cams he displaced in this moment in the direction
from the lever to the arm g of the lever g g' g² (Figure 2) the right-hand end
of the ledge f¹ of the cam or eccentric f will push against the arm and turn the
lever in such a direction that the projection g² of this lever leaves the
screw, so that thus this screw, or the lever respectively, loses its support.
In this moment the highest part of the cam c has arrived below the roll h³ of the
lever h' so that from that moment the lever his supported not any more by the pro-
jection g² of the lever g g¹g but by the cam e, or by the part of the same
respectively. The periphery of the cam c moves now along below the roll h³,
and the fashioning apparatus is now actuated in just the same manner as has been
described with regard to the cam of Figure 9. The positions of the roman
numbers of Figure 10 correspond to the positions of the same numbers of Figure 9,

page_text: and the co-operation of the needles and s is therefore just the same as has been
afore described. When the cams b and c have turned so far that the part VI-VI
of the came has left the roll, or the latter moves upon the part VII of the cam c, the
shaft is displaced so that then the roll gets upon the cam b. In consequence of the
configuration of this cam the operation of the fashioning apparatus is not interrupted,
but the fashioning proceeds until the highest part of the cam, or the part VII"
respectively has arrived below the roll 3. The fashioning has thus commenced
at the part c¹ of the cam e but it ceases only at the part of the cam b, and it is
thus to be seen that the time in which the fashioning is effected is longer than
the time in which the shaft a performs one rotation.
When the highest part 6 of the cam has arrived below the roll ³ the position
of height of the lever is such that the projection of the lever g g g² may
again take below the screw h². The arm of the lever g g g² had already been
freed from the action of the ledge, f¹ of the cam f when the shaft a had been
displaced so as to cause the roll to pass from the came to the cam b. From that
time the projection has been laying against the side of the screw h², and as
soon as this screw reaches its highest position, or normal position respectively,
also the projection re-assumes its normal position so that the screw may
again be supported by said projection when the part 1 of the cam leaves the
roll h³.
The lower half of the cam laying between the points and may have any
desired configuration, as that part does not come into play at all.
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. In a flat hosiery frame having a displaceable shaft and a cam secured to
that shaft, and adapted to actuate the fashioning-apparatus, the combination with
the latter, of a lever adapted to support the fashioning apparatus during the time
of rest of this apparatus, and means for releasing said lever prior to the termina-
tion of the displacement of the said shaft, and for moving the said lever back into
its former position only after the formation of meshes has begun, substantially
as described.
2. In a flat hosiery frame having a displaceable shaft and a cam secured to that
shaft and adapted to actuate the fashioning-apparatus, the combination with the
latter, of a lever adapted to support the fashioning apparatus during the time of
rest of this apparatus, and another cam also secured to the said shaft and adapted
to release said lever prior to the termination of the displacement of the said shaft,
and to move the said lever, or to allow of the said lever being moved, back into
its former position only after the formation of meshes has begun, substantially
as described.
8. In a flat hosiery frame having a displaceable cam such as c (Figure 10), for
operating the fashioning-apparatus, the combination with said cam, of another
displaceable cam, such as b, Figure 10, arranged at the side of, or connected with,
said first cam, and being adapted to operate the fashioning-apparatus after the
two cams have been suitably displaced, substantially as described.
4. In a flat hosiery frame having a displaceable cam such as c (Figure 10) for
operating the fashioning-apparatus, the combination with said cam, of another
displaceable cam, such as b, Figure 10, arranged at the side of, or connected with,
said first cam, and being adapted to operate the fashioning-apparatus after the
twe cams have been suitably displaced; a lever ggg adapted to support the
fashioning apparatus during the time of rest of this apparatus, and means for
releasing said lever prior to the termination of the displacement of the cams,
and for moving the said lever back into its former position only after the formation
of incshes has begun, substantially and for the purpose as described.
5. In a flat hosiery frame having a displaceable shaft and a cam such as c,
Figure 10, secured to that shaft, and adapted to operate the fashioning apparatus,

page_text: the combination with said shaft, of another shaft such as b, Figure 10, also
secured to the said shaft and arranged at the side of, or connected with, said first
cam, and being also adapted to operate the fashioning apparatus after the shaft
has been suitably displaced; a lever g g¹ g2 adapted to support the fashioning
apparatus during the time of rest of this apparatus, and a third cam ffi adapted to re-
lease said lever prior to the termination of the displacement of the said shaft, and to
move the said lever, or allow of the said lever being moved back into its former
position only after the formation of meshes has begun, substantially as shown and
described.
1007
FRIEDRICH MAX HILSCHER.
By Geo. H. Rayner,
Agent for the Applicant.