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Патент USA US2128614

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Aug. 30, 1938.
2,128,614 '
Filed Jan. 3, 1936
2 Sheets-Sheet 1
F] E A
Aug- 30, 1938.
Tiled Jan. 3, 1936
2 Sheets-Sheet 2
Patented Aug. 30, 1938
v 2,128,614
' Norio Kobayashi, Kawachi-gun, ‘Osaka, Japan
Application January 3, 1936, Serial No. 57,415
ll Claim.
(01. 117--59.5j
This invention relates to improvements inrings
for use in a spinning frame, and particularly
rings made of sheet steel.
Heretofore, the ring for a spinning frame has
5 been usually manufactured from a block of low
carbon steel by the operations of forging, ma
chining, grinding, carbonizing or case-hardening,
and the last operation of hardening. In such op
erations, not only many di?iculties have been en
10 countered in' obtaining the desired shaping, but
cation of the-surface along which the traveller
This invention has for its object to obtain an
improved superior ring, thereby removing near
1y all of the above-mentioned disadvantages 01
inherent to existing rings made according to
the ordinary method.
With the above object in. view, according to
this‘ invention, the ring is manufactured from
a relatively thin sheet of steel containing the 10
required amount of carbon (or ‘certain of the
also the quality’ of the product largely depends
upon the temperature and length of the ‘carbon
izing operation, the carbonizing medium used,
nary heat treatment, and the method consists
and the size of the oven or furnace ‘and size and
in ?rst forming said sheet of steel into a cup
15 shape of the box employed for carbonizing op
eration, etc. Thus, the produced article is infe
rior from a number of viewpoints, among which
with a'central opening ‘in the cup bottom, then
subjecting it to stages of rolling and pressing
may be mentioned:--
(a) Unevenness of the shape and dimension of
20the main portion of the ring;
alloy steels) adapted to be hardened by ordi
operations so as to shape it into the desired shape
of the ring, during which operations a hollow
chamber or chambers at one orvboth ends of the
ring iseformed ‘by curling the edge or edges, said
chamber' or chambers being in communication
(b) The main portion is generally insuf?cient
ly ground, If suf?cient grinding is eiTected, the
desired shape of the main portion is inevitably
with the atmosphere through a narrow passage or
injured since such shape is hard to attain;
(c) All rings ‘cannot be subjected to an equal
degree ofpcarbonization, so that it is not possible
'Heretofore, it has been also proposed to make
to obtain equal hardness by a'subsequent hard
ening process throughout all the products;
(d) in one and the same ring, the effect of the
a ring for spinning frames from sheet metal by
the, operations of press stamping for the purpose
of obtaining a light weight ring at a lower cost
of manufacture, but, the produced articles were
inferior due to stresses setup during the press
carbonizing operationcan: not beuniformly dis
stamping‘and due to the fact that a considerable
tributedover the whole circumference, so that
the hardened article does not possess uniformity
the last heat treatment for hardening, and such
of hardness and, consequently, a wavy wear of
sheet metal ring has never been practically used.
the ring occurs after a certain period of use;
(e) Required hardness is obtained on the skin
only, and the hardness gradually decreases to-_
ward the center of the mass of the ring, sothat
the ring will have to be abandoned after small
It is believed'that the present inventor is the
?rst-in obtaining a most useful ring made from
sheet steel.
deformation ‘of the ring is unavoidable ‘during
- In order‘ that‘thisinvent-ion may be clearly
understood and readily carried into practice, ref
erence may ‘be had to the appended explanatory
(1‘) 'Due to the fact that the head, neck and
body of the ring have different thicknessesand
that the degree of carbonization is not uniformly
sheet of drawings in -which:-
distributed in'circumferential as well as radial
tothis invention, andse'ctions of the interme
directions, irregularity of contraction and ex
pansion can not be avoided at the time of the
?nal hardening process, in consequence of which
the shape of the ?nal product is considerably
strained, failing to obtain a true circle ring.
Besides the above-mentioned defects, the ex
isting ring has the drawback that it is relatively
heavy, in consequence of which theconsumption
of power required for the building motion is rel
atively large, and it requires a separate lubri
55 cating system when it is desirable to effect lubri~
diate products obtained by said successive opera
' Figures 1 to‘ ll'show diagrammatically succes
sive operations for producing the‘ ring according
Figure 12 shows partly in section the ?nal
product obtained by said operations;
Figure 13 is a plan thereof;
Figure 14 shows partly in section another form
of the ring made according to this invention, se
cured to a ring rail or plate;
Figures 15 to 20 are sections of various slightly
modi?ed forms of the rings;
Figures 21 to 26 show in section different forms 55
of double-rings, all made according to this in
In carrying out the invention, a sheet of steel
containing a predetermined amount of carbon,
ployed. To introduce the lubricant into the
chamber I8, the ring is immersed into the grease
maintained at high temperature for a suitable
length of time, whereby hot grease will get into
preferably about 0.8% of carbon, (or certain alloy
steels), is ?rst subjected to a suitable annealing
the chamber through the slit I9.
process. Such annealed steel sheet a is pressed
into the form of a cup I) as shown in Figure 2.
small holes 20 may be formed at the top portion
as shown in Figures 15 to 26. When the ring is
allowed to cool, grease in the chamber I8 in
creases its viscosity to the normal degree and is 10
retained therein. When in use, however, the
ring is somewhat heated by the heat of friction
For example, the pressing operation is effected
by the press shown in Figure 1, in which I is a
die; 2 a punch; 3 a support biased by a spring 4;
and 5 is a cutting die. The cup b is out exactly
to the required height as shown in Figure 3.
Employing for example a press as shown in Fig~
15 ure 4, the cup I)’ is then pressed into the shape
of the cup c shown in Figure 5. In Figure 4, 6
is an upper press die; ‘I a ?ange forming die; 8
is a spring pressed support; and 9 is a ?xed sup
port. The cup 0 thus formed in the press shown
in Figure 4 has an annular flange I0 at the bot
tom of the cup. . Said ?ange I0 and the neck of
the cup 0 is shaped and glazed into exactly cir
cular formation by means of a roller I I as shown
in Figure 6. The glazed cup 0 is then subjected
25 to a punching machine as shown in Figure 7,
and a central opening I2 is punched in the bot
tom of the cup, as shown in Figure 8.
The cup 0' having the central opening I2 is
then gripped by a chuck I3 as shown in Figure 9
30 and, while being rotated, the inner edge I4 of
said opening is curled outwardly by means of a
drum-shaped roller I5. The cup 0' is thus formed
into a ring (1 as shown in Figure 10. Said ring
07, is gripped by a chuck I6, and the curled edge
35 I4 is further curled upwardly and outwardly and
glazed by means of a roller H, as shown in Fig
ure 11.
At the same time, the upper surface and
the inner edge of the head which is to be engaged
by the traveller are shaped and glazed. Thus,
40 the ring has been accurately shaped and glazed
on all surfaces by the operations of rolling. The
ring R thus completed is shown in Figures 12 and
13. It is to be noted that during said rolling
processes a chamber I8 is formed within the head
45 of the rEng, which is in communication with the
atmosphere through a narrow slit I9. The ring
R. is then subjected to heat treatment for harden
ing in usual manner.
The invention may be embodied as illustrated
in Figures 14 to 26, which will be found self
explanatory, and any further explanation will
not be required. It is to be understood that the
forms of rings illustrated are merely examples,
and that the invention is applicable to still other
55 forms of rings, as required to suit particular de
In the ring made according to this invention,
the chamber I8 is formed in the head with which
the traveller engages. This chamber I8 is adapt
60 ed to serve as a lubricant reservoir. Preferably
a lubricant such as grease which is normally
solid or viscous body but converted into liquid
form at somewhat elevated temperature is em
In order to
facilitate the introduction of grease, one or more
produced by the traveller running along the ring
at high speed, so that the grease in the cham
ber I8 is lique?ed and ?ows out of the chamber 15
through the narrow slit I9 at an extremely low
rate of ?ow. Thus, the wearing surface of the
ring is automatically lubricated. In order to lu
bricate also the outer surface, a plurality of small
holes 2| are provided along the outer wall as 20
shown in Figures 15, 17, 19, 21, 23 and 25. When
the chamber I8 is formed by curling the edge in
wardly, leaving a narrow slit I9 on the outside,
said holes 2I are formed in the inner wall, as
shown in Figures 16, 18, 20, 24 and 26.
In the modi?ed forms shownin Figures 21 to
26, showing double-rings, each ring is provided
with two lubricant chambers I8 and I8’, each
communicating with the atmosphere through a
narrow slit, or through a narrow slit and small 30
It will be understood that the sizes of the slit
I9 and holes 20 and 2| are less than what are
actually shown in the drawings, and that these
excessive sizes shown in the drawings are merely
for purpose of illustration.
From. the foregoing, it will be seen that the
ring produced according to the invention is con
siderably lighter in weight, so that a saving of
the power required for building motion can be
attained. The ring is homogeneous in its struc
ture and hardness throughout the whole mass,
without any strain, so- that it is possible to at
tain a very soft running of the traveller, and
there is not any tendency of causing a wavy wear 45
of the ring. Moreover, according to the inven
tion, the ring is equipped with a lubricant reser
voir within the ring per so, so that any special
lubricating system is not required for the rings.
According to the invention, the cost of manufac
ture may be considerably lowered as compared
with the manufacture of the existing rings.
What I claim is:A ring for use in spinning frames formed from
a single piece of sheet metal, comprising an an
nular side, an end of said side being shaped by
bending so as to form an annular receptacle for
lubricant and said receptacle having an extreme
ly narrow annular slit encircling said ring at the
bottom of said receptacle and adjacent the upper
end of said annular side, lubricant being adapted
to flow fromv said receptacle through said narrow
slit directly onto- the annular side.
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