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Патент USA US2409973

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Oct. 22, 1946.
‘
w. A. BLANCHARD
4
2,409,973
LEVER FOR LOOM PATTERN MECHANISM
Filed June 6, 1946
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INVENTOR
WILLIAMABLANGHARD
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ATTORNEY »
2,409,973
Patented Oct. 22, 1946
UNITED STATES PATENT OFFICE ‘
.
‘2,409,973
‘ ‘LEVER FOR LOOM PATTERN MECHANISM
:William A. Blanchard, Millbury, “Mass” assignor
to Crompton & Knowles Loom Works, Worces
t'ei', Mass, a corporation of Massachusetts’
Application June 6, 1946, Serial No. 674,810
7 claims. (01. 139-77)
1
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.2
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,.
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This is a continuation in‘ part of my copending
application Serial No. 615,123, ?led September 8,
Fig. 10 is a side elevation of a vibrator lever
made according to the modi?ed form of the in
1945.
vention, and
‘
. A
.
Figs. 11 and ‘12 are enlarged vertical sections on
This invention relates to improvements in pat
ticularly to the vibrator levers used in the well
lines,H‘—H and l2—|2, respectively, of Fig. 10.
Referring particularly to Fig; 1, Ihave shown
known Knowles head. v
a vibrator lever V supported at its, left end on a
tern mechanism levers for looms and more par
I
‘
Vibrator levers for the Knowles head and other
heel pin H and having a pattern run P, a vibrator
types of harness operating‘ ‘mechanisms have
gear G, and a gear connector C. . A look knife K
10 operated by the loom cooperates with a lock knife
heretofore been“ made of solid pieces of metal,
lug L at the right end of the lever to lockthe
generally malleable iron. Such levers are‘ heavy
latter either in its down or up position as deter
and are likely because of their weight to cause
mined by the pattern chain I0. The latter is pro
wearing of the parts which support them and also
vided with rolls ordinarily of two different diame- the pattern chains which operate them. It is an
important object of my present invention to make 15 ters so that when a small roll isunder the run P
the vibrator lever will be down, but whena large
the vibrator lever with top and bottom rails be
roll is under the run the lever will be up. . The
tween which is located a sinuous reinforcing wire
gear cooperates with well-known'mutilated top
or the like extending for the greater part of the
and bottom gear cylinders not shown herein. All ‘
length of the lever and welded or otherwise se
20 of the foregoing; except as pointed out herein
cured to the rails.
after, is of the usual relationship found in the
The vibrator lever ordinarily has severa1 parts,
well known Knowles head.
i
_ .
such as a heel pin bearing at one end, a lock knife
In carrying the preferred form of my inven
lug at the other end, and a pattern chain
and
tion into effect I provide the vibrator lever ,V with
vibrator gear bearings intermediate its ends, It
is a‘ further object of my present invention to se 25 top and bottom rails l5 and I6, respectively,
which extend betweenthe heel pin bearing H
cure these parts to the rails in such manner that
and the lock knife lug L. A sinuous ‘metallic re
they will be held infproper position ‘for coopera
tion‘ with the‘ several loom parts which engage
inforcing member l9 formed preferably ofwire
extends between the rails l5 and I6 and has its
With these and other objects in view which 30 various bends welded or otherwise secured to the
will appear as the description ‘proceeds, my inven
The heel pin bearing ii is provided with a
tion resides in the combination and arrangement
downwardly opening slot 2!] to receive the heelpin
of parts hereinafter described and set forth.
H, and has a notch 2! to receive the left end of
‘ In the accompanying drawing, ‘wherein two
them.
>
‘
‘
‘
v
.
rails.
forms of the invention are‘ shown,
Fig. l is‘ a side elevation of a; vibrator lever
made according to the preferred form of my in
vention,
,
.
.
.
.
the upper rail l5, “ A side notch 22 formed in the
bearing lv'l receives the upwardly bent left end 23
ofthebottomraillt.
Adjacent to the right ‘end
.
of the top
. prailthere
.
is an upwardly opening notch 25 which receives
Fig. 2 is a plan view of the vibrator lever look
ing in the direction of arrow 2, Fig. l, the vibrator 40 the bearing 26 for the vibrator gear G. The bear
ing 26 is welded 0r brazed to the top railil5, and
gear,‘ its connector,‘ and the lock knife being
the right end of the latter extends along‘ and is
omitted,
.
welded to the top of lug L.
‘
l
,
Fig. 3 is an enlarged vertical section on line
The intermediate part of the lower; rail- 16, is
Fig. 4 is a bracketed View showing a side and 4.5 bent downwardly as at St" and then horizontally
as at 3| to be welded or otherwisesecured to the
end elevation‘of the heel pin bearing, '
‘ V
‘ V
lower edge jof the lugL. “ The pattern ‘run P is
Fig. 5 is a bracketed view showing a side eleva
formed with a flat vertical web 32, the lower end
tion and end View of the pattern chain run;
of which is provided “with a broadened concave
Fig. 6 is a side elevation of the top rail‘v shown
50 chain engaging edge 33. The left side of the web
in Fig. 1,
‘ ‘
32 as shown in Fig. 5 is provided with a wing 34
Fig. '7 is a plan View looking in the direction of
which is bent at right angles to the web to lie
arrow 1, Fig. 6,
against the part 30 of the bottom rail and be
Fig. 8 is a side elevation of the bottom rail,
welded thereto. The web extends along part of
Fig. 9 is a plan view looking in’ the direction of
55 the member [9 and is welded thereto, and also
arrow 9, Fig. 3,
'
3—3ofFig.l,
.
'
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extends along the left hand part of the straight
or horizontal section SI of the lower rail and is
welded thereto. The run is thus held ?rmly in
position not only by its engagement with two
angularly disposed parts of the lower rail IE but
also by certain of the bends of the sinuous mem
ber l9.
In the modi?ed form of the invention the heel
pin bearing I‘! may be the same as that used in
the preferred form of the invention, and the top
rail 40 may be similar to rail l5. The bottom rail _
‘4!, however, while having its ‘left end formed in
a manner similar to the left end of rail i6, has
its intermediate part 42 curved downwardly to
the right hand horizontal end 43. The pattern
run P’ has a concave edge 44 similar to edge 33,‘
a horizontal right end 45, and ‘a vertical part
46 to the left of edge 44 terminating in a hori
zontal left end 41. The run P’ has its parts 45
and 41 recessed, see Figs 11 vand 12, to receive and '
~ be weldedto the lower rail 4L.
'
4
adjacent the other end of the lever, a pattern
chain run on the lower tie rod, and a reinforc
ing wire of sinuous form extending between and
secured to said tie rods.
2. In a loom pattern mechanism vibrator lever,
a, pair of vertically spaced tie rods extending
lengthwise of the lever, a bearing member se
cured to said tie rods adjacent one end of the
‘lever, a pattern‘ chain run on the lower tie rod,
vand reinforcing wire means of sinuous form ex
tending between and secured to said tie rods,'
part of said reinforcing wire means being over
said pattern, chain run.
3. In a loom pattern mechanism vibrator lever,
a pair of vertically spaced tie rods extending
lengthwise ‘of the lever, a heel pin bearing _se-‘
cured'to said‘ tie rods adjacent one end of the
lever,. a lock knife lug secured to said tie rods
, adjacent the other end of the lever, a reinforcing
wire of sinuous form extending between and
secured to said tie rods, and a pattern chain
run secured to thelower tie rod and to parts of
Located between the lower rail 4| and the
member 45 is a metallic sinuous reinforcing
the reinforcing wire.
v
member 5i‘! which connects the part 42 of the
4. In a loom pattern mechanism vibrator lever,
vrailv 4! to the run P’. Extending between the 25 a pair of vertically spaced tie rods extending
rails 40 and..4l is a second reinforcing metallic
lengthwise of the lever, a bearing member secured
sinuous member 5|.
to said tie rods adjacent one end of the lever,
In both forms of the invention the vibrator
a reinforcing wire of sinuous form extending be
lever may be provided with a stop 55 to be re
tween and secured to said tie rods, and a pattern
ceived by an arcuate slot 56 in the gear G, and
thisi‘stop-is preferably secured to the lock knife
lug. L.
a
-
- ~ In'operation, the pattern chain It) moves under
the pattern run and either raises or lowerslthe
vibrator lever, depending upon the size of the
'chainlroll in engagement with the runs 33 or
44. Levers V and ‘V’ move' angularly around the
heel pin H to effect vertical movement of the
chain run secured to the lower tie rod and t
parts of said reinforcing wires.
' _
5. In a loom pattern mechanismvibrator lever,
a pair of vertically spaced tie, rods extending
lengthwise of the lever, a bearing member se
cured to said tie rods adjacent one end of the
lever, a reinforcing wire of sinuous form extend
ing between and secured to said tie rods, and a
pattern chain run having a web secured to the
> vibrator gear G. Engagement of the latter with
lower tie rod and parts of the reinforcing wire
' one or the'other of the previously mentioned but 40
and having a concave pattern chain engaging
not shown‘ mutilated cylinder gears effects hori
zontal motion of the connector C.
From the foregoing it will be seen that I have
provided a simple form of pattern lever light in
weight and made of top and bottom rails be
tween} which extend reinforcingsinuous metallic
members which are welded or otherwise secured
to the rails. The pattern run in each form of
the invention is connectedito the bottom rail,v
and? in the preferred form is'additionally con- ’
nected to certain of the bends of the sinuous
member. 19, whereas in the modi?ed form a sup
plemen‘tar'y reinforcing member 50 is interposed
betweenlthe pattern run P’ and the bottom rail
All the parts of the vibrator lever are se
cured together as by welding, brazing, silver sol
dering or the like so that the lever becomes in
effect an integrated unit possessing considerable
strength but being comparatively light in weight.
Having thus described my invention it will be
seen that changes and modi?cations may be made
‘therein bythose skilled in the art'without :de-‘
parting from the spiritand scope of theinven
tion and I do not wish to be limited to the ‘details
edge extending laterally from the web under the
lower tie rod.
7
6. In a loom pattern mechanism vibrator lever,
a pair of vertically spaced tie rods extending
lengthwise of the lever, a bea‘ringymember se
cured to said tie rods‘ adjacent one end of the
lever, a reinforcing wire of sinuous form extend
ing between and secured to said 'tie rods, a pat
tern chain run secured to the. lower tie rod and
having ‘a part thereof spaced below said lower
tie rod, and a second reinforcing wire of sinuous
form between the lower tie rod and said part of
the pattern chain run.
'
'7. In a loom pattern mechanism vibrator lever,
a pair of vertically spaced tie. rods extending
lengthwise. of the lever, a bearing secured to said
tie rods adjacent one ‘end of the lever, a lock
‘knifelug secured .to said tie rods adjacent the
other ,endof the lever, a reinforcing wirev of
sinuous form extending between said bearing and
‘lug and extending also between and secured to
said tie rods, a pattern chain’ run, secured to and
depending from the lower tie rod intermediate
said bearing and lug and having a part thereof
"herein disclosed, but ‘what I claim is:
spaced below‘the lower tie rod, and a second’ re
In a’loom pattern'mechanism vibrator lever,
inforcing wireof sinuous form extending between
‘a pair ofw'vertically- spaced tie rods extending
the lower tie rod and. said part of the pattern
lengthwise ofthe lever, a heel pin ‘bearing se
cured _"to' said tie "rods adjacent one end of the
‘WILLIAM A. BLANCHARD.
lever, a lockf knife lug secured to saidv tie rods 70,
chain
run.
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