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Патент USA US2404749

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July 2, 1946.
R, scHMip-r
~ 2,404,749
WEAVER’S SHUTTLE
Filed _Oct/. 15, 1941
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INVENTORI
RUDOLFTSCHMIDT
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Patented July 23, 1946
2,404,749
UNITED STATES PATENT OFFICE _
‘ 2,404,749
WEAVER’S SHUTTLE
Rudolf Schmidt, Passeck-on-the-Iser, Germany;
vested in the Alien Property Custodian
Application October 15, 1941, Serial No. 415,025 .
In Germany June 5, 1940
3 Claims.‘ (Cl. 139—210)
1
The known constructions of loom shuttles with
hinged two-armed shuttle peg frequently have
the drawback that the pirn 0r spool cannot be
held fast on the peg quite safely, because the
arms of the peg which approach one another by
elastic forces present only a comparatively small
elastic force for holding fast the pirn, this fact
being due to the length of the arms. It is an ob
ject of the invention to improve the support of
the pirns on the shuttle peg. According to the 10
invention the arms of the shuttle peg are kept
apart by a helical spring arranged between the
two peg arms near the hinge or pivot of one or
both peg arms on the loom shuttle. Because of
turned. The peg arms 3 and 4 are connected
with one another at the end 6. In the neighbour-r
hood of the pivot 5 a recess 1 is provided in the
peg arm 3, a helical spring 8 being placed in
the recess bearing against the free end 9 of the
peg arm 4 so that the two peg arms are kept
apart in elastic manner. The peg arm 4 is pro
vided with an abutment Ill for holding fast the
pirn set upon the peg. The free end 9 of the
peg arm 4 cooperates with the inclined gliding
or guiding surface ‘II which advantageously is
made of a metal plate secured to the shuttle body
by means of a pin l2.
The bolt l3 serves to limit
the lowering movement of the peg.
the mutual support of the ends of the peg arms 15
On turning the peg in the shuttle just de
a strong elastic action between the peg arms
scribed, out of the hollow space f ‘to such an
. can be obtained even by a comparatively small
extent that the free end 9 of the peg arm 4 bears
helical spring, this action being quite su?icient
against the surface H, the pirn can be set or
for holding fast the pirns on the shuttle peg with
removed, respectively, without any difficulty.
ample forces. For, it is an advantage of the 20 However, in the lowered position slipping of the
construction according to the invention that the
pirn from the peg is wholly prevented because the
elastic force due to the inserted helical spring,
tWo peg arms are pushed apart by the spring
is acting just on a point where the spreading
8 so that the pirn is held fast by the elastic force
force between the peg arms for holding fast the
of the peg arms and moreover by the abutment
pirns, has the required effect. Nevertheless this 25 I 0. “ The gliding or guiding surface I I ‘not only
spreading force always has the necessary elas
serves the purpose of pressing the two peg arms
ticity to prevent breaking of the pirns (for in
against one another to enable shifting of the
stance with wood pirns) or to prevent an unde
pirn, but also in the constructional form shown
sired deformation (for instance with paper
in Fig. 1 holds fast the peg and thereby also the
pirns). In order to permit the removal of the
pirn in the lowered position. The peg arm end
pirn from the peg provided with supporting sur
9, pushed upward by the spring 8, bears upon
faces, an abutment is provided for the free end
the gliding or guiding surface H in such a man
of that peg arm which is not hinged in the
ner that raising of the peg could be eifected only
shuttle, this abutment permitting the two peg
by pressing the spring 8 i. e. with a compara
arms to press against one another when the same _ tively great force. As Fig. 1 shows, the force
are raised. According to the invention this
which has to be overcome on raising the peg is at
abutment may have the form of an inclined glid
a maximum on the beginning of the raising move
ing or guiding surface for the end of the free
ment and decreases during this movement.
peg arm acted upon by the spring, the free end
From this fact the advantage results that the
of this arm bearing upon the gliding or guiding 40 peg is held fast with a very great force when the
surface in such a manner that the peg is held
peg is in lowered position i. e. during the time of
working.
fast, when the peg is lowered, by the action of
the helical spring inserted between the two peg
If the free peg arm 4 has only to hold fast the
arms.
pirn and does not serve to fix the peg in the low
The drawing shows a device according to'the 45 ered working position, constructions as shown by
invention by way of example. In Figure 1 a
way of example in Figs. 2 and v3 may be recom
section is represented through that portion of
mended. Fig. 2 shows a construction of the peg
a shuttle where the two armed peg is hinged,
wherein a leaf spring [4 (or the like), which is
showing the mutual support of the peg arms ac
arranged separately from the free peg arm 4, is
cording to the invention; Figs. 2 and 3 represent 50 connected with the peg arm 3 and projects with
other modi?cations of the device according to
its free end l5 towards the inclined gliding or
the invention.
guiding surface I l. The end l5 of the leaf spring
In the hollow part I of the shuttle 2 the peg
I4 bears against helical spring I6 in the same
comprising two arms 3 and 4 is hinged by way of
manner as the free end 9 of the peg arm 4 against
a bolt 5, around which the peg arm' 3 can be 56 the spring 8. In order to prevent interference
2,404,749
41 >
at One end thereof in said cavity, means for limit
ing the downward rotation of said spindle about
between the peg arm 4 and the leaf spring M
the peg arm 4 passes through an aperture ll of
the leaf spring l4. The function of the shuttle
corresponding to Fig. 2 is analogous to that of
Fig, 1 with the difference that the two objects,
viz. holding fast of the pirn and ?xing of the peg
within said cavity, a resilient arm extending from
in the lowered position are distributed in the con
stantially ?at guiding surface against which the
said pivot when the spindle is in normal position
the free end of said spindle reversely toward said
pivot, and abutment means provided with a sub
enduof- said armlslideslwhile the spindle is ro
tated" out of said cavity, ‘said surface‘ forming an
4 and the'lieafis‘prihg‘lill; whereas in" the construe;
tional form according to Fig. 1 both objects are 10 acute angle with the upper portion of said arm,
and the point of contact of said arm with" said
ful?lled by the peg arm 4 alone.
~;
structional form»-shown--~in Fig.4.} to-the- peg arm
According to Fig. 3 an am Hi advantageously
surface lying on a line disposed at right angles
Z-shaped is provided, said arm being pivoted at
to"- the- surface and passing above said pivot,
whereby gradually decreasing resistance will be
#bearlng against a helical spring 20-.’ FIYhis arm 15 o?eredto thevulpward rotation of said' spindle
from its normal position within the cavity to a
18 cooperates with corresponding planes on'the
position outside‘ the cavity.
bearing 21 so that the peg‘isitkept fast
the
one end upon a bolt I9 and-at the other end
raised, as well as in the lowered position.’ In this
constructional form the free peg arm 4 also serves
"3; "In’a'l'oom shuttle having an elongated cavity
thereinyan elongated spindle pivoted at one end
only the purpose of keeping the pirn fast on the
in said cavity, an arm having one end, thereof
~'Ijhe.pirn-can~he removed from the-pegvwhen
attachedltolthe free endLof said-spindle. and;ex
they peg?is in the raised _ position’ by pressing the
tendingé'rleversely.along said =s'pindle',,_a spring
free peg arm end-9f against the» vertical ‘p'art22
normally urgingl said‘ arm away fromsaid spindle
ofgthe arm
l8’.
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toward, the .,open; end of. said- cavity,..m'eans,.,for
limiting .the inward rotation of said spindlenabout
'
> 'What'I claim is:
1~.~'In>-a doom ‘shuttle having a hollow space
therein, a peg arm having one end thereof‘ hinged
tolsaid- shuttleiwithin said space,‘ a second: peg
saidpivot when thespindle isiinlnormal‘lposition
within said cavity, a. second. a'mnsecured toathe
spindle at a point intermediate.theliingeand the
pointof attachment of-_ saidl?rst- arm,. said sece
arm secured to the free portion of said ?rst arm
and having one'end» thereof secured upon ‘said
ond arm extending .reversely_.-along saidlspindle
and having the free endlthereof. interengageable
with the free end of the. ?rstlarmv when thersec-l
0nd arm is. moved toward the spindle,.a~second
spring :between'the-free end-,loflsaidmsecond arm
hinged pegarm, a, second helical spring arranged '
between- the hinged-peg arm "and the free end. of
and said spindle, and abutment .meansl provided
with a substantially iiat guiding surface against
said- leaf spring, andra gliding surface cooperat
which the'free end of‘saidsecond armslides while
and} extending alongsidethe ?rst ‘arm in the’di
30
rectioniotsaid-hingepa helical spring arranged
between the peg arms in the vicinity ofsaid hinge,
ac-learf-springe extending substantially parallel to
the spindle is. rotated ‘out of said~cavity,.said- sure
face forming an acute angle with the sideofrthe
ing with 'the'lfree end of» said second Ypeg arm
through the-medium-of said leaf spring, said glid
ing surface being inclined relative-to the longi
tudinal i axis r-of_v “the "leaf spring- and adapted to
holdsaid-peg arms in lowered position within said
hollowspace.-~~/»
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-'2w.~~ln~a-loom shuttle having an elongated spin
dle» cavity’ therein,“ an elongated spindle pivoted
40
second ar'mlfacing the opén end of..said: cavity,
whereby- the second arm is held. against: said‘ sec-.
ond‘ spring and said. spindle is held against said
limiting means within said cavity.
' Rum SCHMET
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