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Патент USA US2406664

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Aug- 27, 1946-
‘
' s. L. CASELLA
2,406,664
INTERMITTENT FEED CHANGE MECHANISM
File‘d Nov. 15,. 1942 .
5 Sheets-Sheet 1
‘ 1a14.;151
INVENTOR
5500/00 1. 645.5414 ,
3% M 21M
ATTORNEYS
Aug. 27, 1946.
s, L, CASELLA '
' 2,406,664 '
INTERMITTENT FEED CHANGE ‘MECHANISM
Filed Nov. 15, 1942
5 Sheets-Sheet 2 ~
Q
63
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38
Flag.
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INVENTOR
62-00mm l. 048£ZLA
BY
'
,
Y
A TTORNE Y6‘
Aug. 27, 1946.
s. L. CAS'ELLA
I
2,406,664
INTERMITTENT FEED CHANGE MECHANISM
Filed Nov. 15, 194:2v
.
s7 S?eets+Sheet s
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INVENTOR
Ssoouuo L. 04.952414
Em w 21M.
ATTORNEY
Auga 27, 1946;.
’
s, L. CASELLA
‘
2,406,664
‘INTERMITTE‘NT FEED CHANGE MECHANISM
Filed Nov. 15, 1942
5 Sheets~Sheet 5
Flt-3.5.
A TTORNEYS
2,405,664
Patented Aug. 27, 1946
‘UNITED. STATES ‘PATENT OFFICE
INTERMITTENT FEED [CHANGE
MECHANISM
Secondo' L. Casella, Brooklyn, N. Y., assignor to '
Morey Machinery 00., Inc, Astoria, Long Is
land, N. Y., a corporation of New York
Application November 13, 1942, Serial No. 465,814
10 Claims.
(0]. 747-124)
9
in the closure I6 forming a part of the housing l6,
E8 of the mechanism. 'The ‘shaft is held in posi
tion in theball race 25 by a lock nut 21. Keyed
1
" This ‘invention relates to intermittent feed
mechanisms and more particularly to such mech¢ v
.anisms effecting the carriage feed in metal
as at 29 to the lowermost end of the shaft ZAZ’is
shapers, although not so limited.
a hub member 3| to which a cam 33 “is ‘secured
in proper position as by the screw 35. jTh'e‘cam
One object of the present invention is a vari! >
ablethrow of theyfeed through an in?nite num
33 is thus also constantly rotating. ‘
ber of changes in throw within prescribed limits
while the machine is in operation.
-
a collar 45 supported from the housing section l8. 4
The shafts 22 and 39 are in axial prolongation'of
one another but are independent, in that the shaft
‘
Another object of the invention is the provi
38 is rotated only indirectly from the shaft 22 in
sion of instrumentalities providing for an in-'
?nite number of gradations of feed within given
limits.
b
‘friction bearing 31 is the upperend of a driven
shaftts, the other end of which is’suitably sup
ported by an anti-friction bearing 43 carried in
Another object of the invention is to avoid all
shock to the 'moving parts, this through the in
strumentality of a constantly operating card. 7
'_
and coaxial with the shaft 22; ‘as within an anti— '
Another object of the. invention is the utiliza
tion of the full throw of a cam in effecting each
variation in the movement of the feed. '
,
J ournalled in the lower end of hub member}!
.
a manner which will be apparent from the fol-'
lowing description;
'.
.
'
'
-
Mounted on the driven shaft 39 is a pinion 41
‘ These and other ‘objects of the invention and
which is free for rotation about the shaft 39" and
the means for their-attainment will be more ap
is in mesh with a toothed -' ‘segment 49; ; The
toothed segment 49 is carried upon the end of an .
parent from the following. detailed description;
taken in connection with the accompanying
drawings illustrating one embodiment by which
arm 5| (Figure 5)‘, forming part of a bell crank
lever-like structure 5|, 53 shown in plan in Fige
the invention may be realized and in which:
Figure 1 is a View showing a shaper to which 25 ure 3; The extremity of the other arm 53 of the
bell crank lever 5l-—'53 has, pivotally- mounted
the carriage feed transmission mechanism of this
‘thereon; a stud shaft 55 on which is journalled a
shoe 51 sliding in a downwardly facing groove 59
Figure 2 is a view in vertical section showing
in an arcuate or elongated member 5i which is
the carriage feed transmission mechanism of
30 'pivotally supported on a shaft 63 depending from
this invention;
'
Figure 3 is a transverse sectional view taken in ‘ the housing closure 16. The bell crank is 'fulé
crumed on a stud'shaft 65 mounted on an ad
the plane indicated by the line 3—3 of Figure 2
justable
sector 61 for rotation about theaxis of
and looking in they direction of the arrows;
drive 'shaftr22r Sector 61 is supported and moved
Figure 4 is a transverse vertical sectional view
taken in the plane indicated by the line 4-4 of 35 on ‘spaced horizontal tracks 69 and v‘ll and re
position by gibs 69' and ‘H’, removable,
Figcbre 3 looking in the direction of the arrows; ' 'tained‘in
as by the screws 13, in the interest of manufac
tureand' assembly. The sector-is formed'onits
Figure 5 is afragmentary View in perspective
outer periphery with a rack 15 shown best‘ in Fig
showing the coacting instrumentalities by which
ures 2, 3 and 5 and is adjustable along these
the feed is initiated and controlled.
invention is applied;
an
,
‘
‘
-
'
:10
Referring ?rst to Figure 1, a shaper, in its
tracks by a pinion ‘l’! on a shaft 19 rot'atably
The feed is effected
mountedin the cover member l6 and turned'in
adjustment, through the instrumentality of the
by the shaft l4 controlled and actuated by instru
mentalities within the housing l6, I8, carried on
end of the shaft 19 carries a dial, 80 graduated to
entirety, is shown having the rain I!) and carriage
I 2, as will be understood.
the base of the ram l0 convenient to the hand of
the operator, the degree, of feed of thecarriage
l2, for instance, being determined by the hand
lever 20.
g I
Referring now also to Figures 2 and 4, a con
worm Bl on shaft 83‘carrying the handle 20.
The ,
show the degree of adjustment of the feed. '~ ~
‘ As shaft 22 rotates, and the cam 33 therefore
also rotates, the cam 33 engages a roller 85 rotat
ably mounted on a stud shaft 81 extending up;
50 wardly from a boss 89 on the edge of the topsur
stantly rotating shaft 22 is provided, which is
> face of the arcuate member 6! formed in its
driven from any convenient source of power,
preferably from another moving part of the ma
chine. Sh'aft 22 is journalled in an anti-friction
bearing shown as the ball bearing 24, 25 mounted
as rotatably mounted and suspended in bearings in
lower surface with the downwardly facing groove
59. ‘The grooved member BI is pivotedv for oscilla
tion‘in a horizontal plane on a shaft 63-whi‘chf is
2,406,664
3
4
the cover I 6. The grooved member 6| is normally
Shaft section I63 may also be utilized to oper
urged into contact with the cam 33 by a push rod
93 whereof the head 95 is pivoted, as on stud 91,
on the upper solid face of the grooved member
6I. The push rod 93 is slidable in a bushing 99,
plunger I12 of a pump.
The train of mechanism described above ex
removably carried in the wall of the upper hous
tending from the beveled pinion I21 through the
ate a force feed oiling system. A cam I19 on the
end of the shaft may actuate the spring pressed
ing portion I6, there being a spring I3I between
coupling I33‘ is not speci?cally claimed herein
the head 95 of the plunger 93 and the bushing
as it is the subject matter of claims in my divi
99 to urge the stud 91 and thereby the roller 85
sional application ?led November 16, 1943, Serial
supported on the end of the grooved member 6| 19 No. 510,561.
into the path of the cam 33.
The operation of the device will be apparent
from the foregoing description. Sui?ce it to say
Pinion 41, as pointed out hereinbefore, is not
fastened to the driven shaft 39. It is keyed, as
that the driven shaft 39 which in turn actuates
at I93, to a, sleeve I35 which is concentric with
the moving element such as the carriage, is ro
the shaft 39 and has a downwardly and outwardly
tated through a predetermined angle determined
extending skirt portion I91 terminating in an
by the angle through which the arm 5i of the
outwardly directed ?ange I99 having therebelow
bell-crank turns in rotating the pinion 41. The
a circular rib or shoulder II I spaced inwardly of
angle through which the arm 5! moves is in turn
the edge of the skirt I91. A supporting disc H3
dependent on two factors. One factor is the
is also carried on a shoulder II5 on the lower
position of the shoe 51 in the groove 59. Obvi
portion of shaft 39. This disc II3 has an up
ously, the further away the shoe 59 is from the
wardly extending rib or annular shoulder H1 in
axis 63 of rotation or arcuate movement of the
the same cylindrical plane as shoulder or rib I II
grooved member, the longer will be the arcuate
and positioned by the shoulders. Mounted be
movement of the end of the arm 53 of the bell
tween the ?ange I 99 and the rim of disc H3, 25 crank and hence of the arm 5I thereof and the
is an annular collar IIS and within the annular
toothed segment 49 which rotates driven shaft
collar H9 is the outer clutch element I2I of an
39. This is because the movement of the end of
overrunning clutch comprising the inner clutch
the grooved member 6| about its pivot is always
element I23 which is keyed to shaft 39. It will
constant by reason of the effective length of the
be recognized that when the element I2I is ro
tated in one direction, the shaft 39 is caused to
rotate in the same direction through the in
cam 33 but the path or degree of movement of
the shoe about the pivot of the bell-crank mem
ber becomes progressively shorter as the shoe is
moved in the groove toward the pivot of the
strumentality of the rollers I25 coacting with the
clutch surface members IZI, I23. If, on the other
grooved member 6 I. Thus by moving the fulcrum
hand, the element I2I rotates in the opposite di 35 point 95 of the bell crank toward the fulcrum
rection, no drive with shaft 39 is effected between
point 63 of the grooved member, the stroke is
the pinion 41 and the shaft 39 because the outer
automatically increased. By the provision of
clutch member I 2I and skirt I91 are rotated in
the same direction and release these parts under
the mechanism described an in?nite number of
, gradations of feed is obtained. All gradations of
the in?uence of the spring I9I. When, however, 40 feed utilize the full stroke of the cam but re
the shaft 39 is rotated through a predetermined
angle it causes the rotation, through the instru
mentality of the bevelled pinion I21, of ,the com
bined bevelled gear I29 and clutch element I45,
which is keyed to the sleeve I35 which is rotat
ably mounted on shaft I3I. Shaft I3'I, anex
tremity of which is connected to the shaft I4
through coupling I33, may be selectively con
nected with the gear I29 for intermittent actua
tion of shaft I3I and the table. The clutch sleeve
I41 is keyed to shaft I3I. By moving sleeve I41
to the left (as viewed in Figure 2), the clutch
surfaces I46 and I45 are engaged. .Such move
strict its effectiveness to correspond to the feed
required.
This invention distinguishes over the prior art
in that the variable throw of the carriage feed
transmission mechanism is effected throughan
in?nite number of changes in throw while the
machine is in operation and in each instance
utilizing the full throw of a single cam as dis
tinguished from'all other known instrumentali~
ties for this purpose which rely on the use of
only a portion of the movement of the actuating
device, whether cam or other device. By the
provision of a constantly operating cam as the
actuating instrumentality, a smooth movement
is possible devoid of all shock to the moving
by the arm I49 on the shaft I5I and operated by
the handle I53 (Figure 1).
parts. At the same time, the overrunning clutch
between the power input and the power output
The same clutch mechanism may, selectively,
makes possible an in?nite number of gradua
be utilized to e?ect continuous operation of the
carriage.
tions of feed, 1. e., as low, for instance, as one
The shaft I55 is continuously rotating, say 60 ten-thousandth of an inch.
Various modi?cations will occur to those
from the prime mover of the machine and carries
skilled in the art in the con?guration and dis
the bevelled gear I51 meshing with the bevelled
position of the component elements going to
gear I59 keyed, as at I6I, to a sleeve I62 on the
make up the invention as a whole as ‘well as in
shaft section I63. The sleeve I62 carries the
clutch face or clutch teeth I65 selectively engag 65 the selection of instrumentalities performing the
ing the clutch facing or clutch teeth I61 on the
same function in a different manner and no lim
end of the reciprocable clutch sleeve I41 oppo
itation is intended by the phraseology of the
site to the clutch face I46.
foregoing description or illustrations in the an
Provision is also made for braking the sleeve
nexed drawings except as indicated in the ap
section I35. The sleeve I35 is keyed as at I31 to 70 pended claims.
a brake drum I 39 which is encircled by a spring
What is claimed is:
pressed brake band I4I which can be tightened to
1. In feed change mechanism, in combination,
the desired degree by the screw I43 to prevent
a power shaft, a cam on the power shaft, a driven
overrunning of the sleeve I35 and the. train of
shaft, a gear loosely mounted on the driven
mechanism rotating the same.
75 shaft, one-way clutch means between the gear
ment of ‘the clutch sleeve is shown as effected
2,406,664
and the driven shaft, a toothed sector, means to
support the toothed sector for movement in an
arcuate path about the axis of the power shaft,
abell crank pivotally mounted on the toothed
one-way clutch means between the gear and the
driven shaft, a sector, means to support the sector
for movement in an arcuate path about the axis
of the power shaft, a bell crank pivotally mount
sector, a toothed segment on one arm of the
ed on the sector, a toothed segment on one arm
bell crank and in mesh with the gear on the
driven shaft, a shoe pivotally mounted on the
of the bell crank and in mesh with the gear on
the driven shaft, a shoe pivotally mounted on
end of the other arm of the bell crank, an arcu
the end of the other arm of the bell crank, an
arcuate member formed with a groove in its
ate member formed with a groove in its lower
surface, means to pivotally mount one end of 10 lower surface, means to pivotally mount one end
of'the arcuate member, means normally urging
the arcuate member, means normally urging the
the other end of the arcuate member toward the
other end of the arcuate member toward the
cam, said groove receiving the shoe on the bell
cam, said groove receiving the shoe on the bell
crank, and a roller vpivotally mounted on the
crank, and ‘a roller pivotally mounted on the
other end of said arcuate member for intermite 15 other end of said ‘arcuate member for intermit
tent actuation by the cam whereby said arcuate
tent actuation by the cam whereby said arcuate
member is oscillated about its pivot to move the
member is oscillated about its pivot to move the
shoe vin an arcuate path about the axis vofthe
bell crank pivot to oscillate the bell crank and
shoe in an arcuate path about the axis of the
bell crank pivot to oscillate the driven shaft
20 through an angle proportional to the arc of
thereby the driven shaft through an angle pro
portional to the arc of movement of the shoe.
2. In feed change mechanism, in combina
tion, a power shaft, a cam on the power shaft,
a driven shaft, a gear loosely mounted on the
movement of the shoe.
,
5. In feed change mechanism, in combination,
a power shaft, a cam on the power shaft, a
driven shaft, a gear, operative connections be
driven shaft, one-way clutch means between the 25 tween the gear and the driven shaft, a sector,
means to support the sector for 'movement in
gear and the driven shaft, a toothed sector,
an arcuate path about an axis, a bell crank piv
means to support the toothed sector for move
otally mounted on the sector, a toothed segment
ment in an arcuate path about the axis of the
on one arm of the bell crank and in mesh with
power shaft, a bell crank pivotally mounted on
the gear operatively connected with the driven
the toothed sector, a toothed segment on one
shaft, 2. shoe'pivotally mounted on the end of
arm of the bell crank and in mesh with the
the other arm of the bell crank, an arcuate mem
gear on the driven shaft, a shoe pivotally mount
ber formed with a groove in its lower surface,
ed on the end of the other arm of the bell crank,
means to pivotally‘mount one end of the arcuate
an arcuate member formed with a groove in its
lower surface, means to pivotally mount one end 35 member, means normally urging the other end
of the arcuate member toward the cam, said
‘ of'the arcuate member, means normally urging
' groove receiving the shoe on the bell crank, and
the other end of the arcuate member toward the
means on the other end of said arcuate member
cam, said groove receiving the shoe on the bell
for intermittent actuation by the cam whereby
crank, and anti-friction means mounted on the
other end of said arcuate member for intermit 40 said arcuate member is oscillated about its pivot
to move the shoe inan arcuate path about the
tent actuation by the cam whereby said arcuate
axis of the bell crank pivot to oscillate the driven
member is oscillated about its pivot to move the
shaft through an angle propotional to the arc
shoe in an arcuate path about the axis of the
of movement of the shoe.
bell crank pivot to oscillate the bell crank and
6. In feed change mechanism, in combina
thereby the driven shaft through an angle pro 45
tion, a ?rst shaft, cam means on the ?rst shaft,
portional to the arc of movement of the shoe.
a second shaft, a gear, operative connections be
3. In feed change mechanism, in combination,
tween the gear and one of the shafts, a sector,
a power shaft, a cam on the power shaft, a
means to support the sector for movement in an
driven shaft in prolongation of the power shaft,
arcuate path about an axis, a bell crank pivotally
50
a gear loosely mounted on the driven shaft, one
way clutch means between the gear andv the I mounted on the sector, a toothed segment on one
arm of the bell crank and in mesh with the gear,
driven shaft, a toothed sector, means to support
shoe means mounted on the end of the other
the toothed sector for movement in an arcuate
arm of the bell crank, an arcuate member formed
path about the axis of the power shaft, a bell
crank pivotally mounted on the toothed sector, 55 with a groove receiving the shoe means on the
bell crank, means to pivotally mount one end of
a toothed segment on one arm of the bell crank
and in mesh with the. gear on the driven shaft, ,
the arcuate member and means normally urging
the other end of the arcuate member toward the
a shoe pivotally mounted on the end of the
cam, said arcuate member being intermittently
other arm of the bell crank, an arcuate member
formed with a groove in its lower surface, means 60 actuated by the cam means whereby said arcu
ate member is oscillated about its pivot to move
to pivotally mount one end of the arcuate mem
the shoe means in an arcuate path about the axis
ber, means normally urging the other end of
of the, bell crank pivot to oscillate said "one of
the arcuate member toward the cam, said groove
the shafts through an angle proportional to,‘ the
receiving the shoe on the bell crank, and a roller
pivotally mounted on the other end of said arcu 65 arc of movement of the shoe means.
ate member for intermittent actuation by the
cam whereby said arcuate member is oscillated
about its pivot to move the shoe in an arcuate
7. In feed change mechanism, in combination,
a ?rst shaft, cam means on the ?rst shaft, a sec
ond shaft, a gear, operative connections between
the gear and one of the shafts, a sector, means
path about the axis of the bell crank pivot to
oscillate the bell crank and thereby the driven 70 to position the sector for movement in an arcu
ate path about an axis, lever means pivotally
shaft through an angle proportional to the arc
of movement of the shoe.
,
4. In feed change mechanism, in combination,
a power shaft, a cam on the power shaft, a driven
mounted on the sector, a toothed segment on said
lever means and in mesh with the gear on one of
the shafts, guide means on the lever >means, an
shaft, 9, gear loosely mounted on the driven shaft, 75 elongated member formed with a groove in its
2,406,664
7
8
lower surface, means to pivotally mount one end
of the elongated member, and means normally
urging the other end of the elongated member to
ward the cam, said groove receiving the guide
the sector, operative connections ‘between the
means on the lever means, said arcuate member
being intermittently actuated by the cam means
whereby said elongated member is oscillated
about its pivot to move the guide means in an
lever means and the gear means, a pivoted guide
member, coacting guide means between the lever
means and the guide member, and means nor
mally urging the guide member toward the cam,
said guide member being adapted to be intermit
tently actuated by the cam means whereby said
guide member is oscillated about its pivot to move
the coacting guide means in an arcuate path
arcuate path about the axis of the bell crank to
oscillate one of the shafts through an angle pro 10 about the said axis to oscillate one of the shafts
portional to the arc of movement of the shoe.
'8. In feed change mechanism, in combination,
a ?rst shaft, cam means on the first shaft, a
second shaft, gear means loosely mounted on one
of the shafts, one-way driving means between
the gear means and one of the shafts, a sector,
means to adjustably position the sector in an
arcuate path about the axis of one of the shafts
proportional to the desired angular rotation of
a shaft, a bell crank pivotally mounted on the
sector, operative connections between one arm
of the bell crank and the gear means, guide means
on I the
end
of
the
other
arm
of
the
bell
crank, an arcuate member, coacting guide means
on the arcuate member, means to pivotally mount
one end of the arcuate member, and means nor
mally urging the other end of the arcuate mem
ber toward the cam, said arcuate member being
intermittently actuated by the cam means where~
through an angle proportional to the arc of move
ment of the coacting guide means.
10. In feed change mechanism, in combination,
a power shaft, a cam on the power shaft, a driven
shaft, a gear loosely mounted on the driven shaft,
one-way clutch means between the gear and
the driven shaft, a toothed sector, means to sup
port the toothed sector for movement in an arcu
ate path about the axis of the power shaft, a
bell crank pivotally mounted on the toothed sec
tor, a toothed segment on one arm of the bell
crank and in mesh with the gear on the driven
shaft, a shoe pivotally mounted on the end of
the other arm of the bell crank, an arcuate mem
ber formed with a groove in its lower surface,
means to pivotally mount one end of the arcu
ate member, means normally urging the other
end of the arcuate member toward the cam, said
groove receiving the shoe on the bell crank, and
by said member is oscillated about its pivot to 30 a roller pivotally mounted on the other end of
oscillate one of the shafts through an angle pro
said arcuate member for intermittent actuation
portional to the are of movement of the guide
by the cam whereby said arcuate member is oscil
means.
9. In feed change mechanism, in combination,
a ?rst shaft, cam means on the ?rst shaft, a sec
ond shaft, gear means, one-way driving connec
lated about its pivot to move the shoe in an ar
cuate path about the axis of the bell-crank pivot
35 to oscillate the bell crank and thereby the driven
shaft through an angle proportional to the arc
of movement of the shoe, a carriage feed shaft
shafts, a sector, means to adjustably position the
and clutch means between the driven shaft and
sector through a predetermined movement pro_
the carriage feed shaft.
portional to the desired angular rotation of one 40
of the shafts, lever means pivotally mounted on
SECONDO L. CASELLA.
tions between the gear means and one of the
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