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Патент USA US3067927

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Dec. 11, 1962
c. PETERSON
3,067,918
ROLLER FEED DRIVE MECHANISM
Filed Dec. 21, 1959
4 Sheets-Sheet 1
‘
INVENTOR.
CARL
PETERSON
BY
/
‘I;
, /_ ,
ATTORNEY I
'
Dec. 11, 1962
c. PETERSQN
3,067,918
ROLLER FEED DRIVE MECHANISM
Filed Dec. 21, 1959
4 Sheets-Sheet 2
INVENTOR.
CARL
BY
PETERSON
%W
ATTORNEY
Dec. 11, 1962
c. PETERSON
‘3,067,918
ROLLER FEED DRIVE MECHANISM
Filed Dec. 31, 1959
4 Sheets-Sheet 3
INVENTOR.
CARL
PETERSON
BY
% ‘f /
' /
ATTORNE
Dec. 11, 1962
c. PETERSON
3,057,918
ROLLER FEED DRIVE MECHANISM
Filed Dec. 21, 1959
4 Sheets-Sheet 4
FIG-4
-
INVENTOR.
CZQIRL PETERSON
%
ATTORNEY
. nite
Stats
Patented Dec. H, 1962
2
1
stock or unusual lengths of feed or both without sacri?c
3,067,918
ROLLER FEED DRIVE MECHANISM
Carl Peterson, Harrington, RE.
(9 Warren Ave., East Providence, El}
Filed Dec. 21, 1959, Ser. No. 850,750
14 Claims. 6331. 226-456)
ing the inherent accuracy of the original roller and clutch
feed. Referring to the drawings, FIGS. 1 and 2. illus
trate the device equipped for exceptionally long feeding.
The roller feed conventionally comprises a rectangular
frame which includes a base 10, vertical side members
11 and 1.2 and a top 13. The side members 11 and 12
hold the bearings for the roller shafts. The lower roller
14. is mounted between the members 11 and 12 and is
My present invention relates to roller feeds and more
particularly to a novel drive linkage between the source
10 normally slightly larger in diameter than the upper roller
of motor power and the roller feed clutch drive.
15. The bearings 16 on the upper roller are adjustably
The principal object of the present invention is to pro
compressible downwardly by means of springs 1'7 and
vide a drive linkage for a roller feed device which will
adjustament screws 18 at each end. in the conventional
permit accurate and positive driving of oversize roller
roller feed the shaft for the lower roller 14 extends out
feeds.
Another object of the present invention is to provide
a drive linkage for a roller feed which permits the feed
ing of long lengths of stock with conventional clutch
mechanisms.
Another object of the present invention is to provide
wardly beyond the member 11 and a clutch mechanism
19 is mounted thereon. The operating arm normally ex
tends from the press eccentric drive to a lever which op
crates the clutch mechanism 19. The present invention
is designed to substitute a novel linkage in place of the
a drive linkage for a roller feed device which will pro 20 conventional drive.
duce a direct line drive regardless of the width of the
The clutch mechanism 19 can be any type of device
which will provide feeding motion of the lower roller 14
feed rollers.
on the up stroke of the press and will disengage on the
Another object of the present invention is to provide a
feed linkage for a roller feed which can be attached to
down stroke of the press. These clutch mechanisms in
any type of roller feed device utilizing any type of clutch 25 clude pawl and ratchets, friction grip arrangements or
mechanisms of the type shown in Patent No. 2,591,993
to Sulo Aijala. This is the type illustrated in the pres
ent application. To provide applicant’s novel drive the
mechanism.
A further object or" the present invention is to provide
a roller feed drive linkage having the above advantages
which is simple in construction and easy and economical
30
to manufacture and assemble.
With the above and other objects and advantageous
features in view my invention consists of a novel ar
rangement of parts more fully disclosed in the detailed
description following in conjunction with the accompany
ing drawings and more particularly de?ned in the ap
pended claims.
In the drawings,
base id is elongated to the left in FIG. 1 to form an ex
tended base portion 26. Similarly the top 13 is also ex
tended to the left to form an extended top portion 21.
A vertical end member 22 extends between the base and
top. An auxiliary shaft 23 is journaled with one end in
the member 22. and the other end in the drive portion of
the clutch 19. Adjacent the clutch 19 a wide gear 24 is
?xed to the shaft 23. The outer end of the shaft 23 may
be provided with a collar 25 with openings 26 into which
a lever can be inserted for manually moving the feed
FIG. 1 is a perspective view showing the front end of
while threading or adjusting.
the device hooked up for feeding long stock.
40
Referring to FIG. 2, the rear of the extended base por
FIG. 2 is a perspective view showing the rear of the
tion 21? is provided with a cut out portion 27. Mounted
device shown in FIG. 1.
beneath the extended base 20 is a block 28 having spaced
FIG. 3 is a perspective view of the front of a modi?ca
parallel shafts 29 extending beneath and on each side of
tion of the device hooked up for feeding wide stock.
the cutaway slot 27. A roller 30 is mounted on each
FIG. 4 is a perspective view showing the rear of the
shaft 29. Beneath the rollers 36 the block 28 is provided
device shown in FIG. 3.
with spaced parallel rearwardly extending arms 31 at the
In feeding metal in strip form to power operated tools
end of which is a transverse shaft 32. carrying a roller 33.
it is customary to provide a pair of rollers with a clutch
The roller 33 has an axis of rotation at right angles to
mechanism attached to the shaft of one of the rollers.
An intermittent drive is provided by attaching a lever to 50 the rollers 30 and is positioned so that a vertical tangent
the clutch mechanism which is operable by an arm ex
tending from the end of the lever to an eccentric on the
press drive. Such a linkage will provide a feed of fine
accuracy depending on the accuracy of the clutch mech~
anism. However, this hook up has two major disadvan
tages. Where the stock to be fed is exceptionally wide
the rollers must be exceptionally long. The clutch mech
anism is therefore positioned far out of alignment with
the eccentric drive. The connecting rod must be bent
laterally causing the bending action with each stroke of
the press which results in breakage of the rod and inac
to its inner edge passes through a vertical line at the rear
edge of the rollers 30. Directly above the cut out por
tion 27 and in vertical alignment therewith the top por
tion 21 is also similarly cut out.
Mounted on the top
21 is a plate 34 having spaced parallel rearwardly ex
tending arms 35 in which a transverse shaft 36 is mounted.
A roller 37 is mounted on the shaft 36 in vertical align
ment with the roller 33. Mounted beneath the portion
21 is a block 38 having spaced parallel rearwardly ex
tending shafts 39 with a roller 4!) at each shaft in ver
tical alignment with the rollers 36.
The second disadvantage of the con
Rotation of the gear 24 is effected by an elongated
ventional drive linkage is that the length of stock fed
vertical rack bar 41 having teeth 42 which is positioned in
by the rollers is limited by the diameter of the rollers
the cut out portions of the top and bottom members 20
and the length of the lever arm on the clutch mechanism. 65 and 21 as shown in FIG. 2. The bar 41 rides vertically
Where the length of stock to be fed is beyond the capacity
between the rollers 3% and 33 at the bottom and the roll
of these factors other more costly and more complicated
ers 37 and 46 at the top. It will be noted that the roll
curacy in the feed.
ers 30 and 40 prevent lateral movement of the bar 41
and the rollers 33 and 37 prevent rearward movement.
these major disadvantages. By means of the novel drive 70 At the front the bar is pressed against the gear 24 with
linkage device disclosed herein the conventional roller
its teeth 42 in engagement therewith. Vertical reciproca~
and clutch feed can be used for unusually wide strips of
tion of the bar 41 will therefore result in rotation of the V
arrangements must be used.
,
The present invention is designed to overcome both of
3,067,918
4,
vertical end members 56 and 57. The rollers 58 and 59‘
clutch 19. When the bar 41 moves upwardly the clutch
19 is in feeding engagement and will turn the roller 14-.
When the bar 41 is moving downwardly the clutch 19
is idling. Since the bar 41 is elongated and can supply
are mounted one above the other between the end mem-1
bers 56 and 57. The lower roller 58 may be slightly great
er in diameter than the roller 59. The lower roller 58
is mounted on a shaft journaled in the members 56 and
57 but extending outwardly towards the left in FIG. 3
to provide a mounting for the friction clutch mechanism
a comparatively long stroke, the feed stroke with the
clutch 19 engaged is much longer than that possible with
a conventional lever which reciprocates through an arc
6%‘. The roller 59 is provided at each end with vertically
slidable bearings 61 which are adjustable at 62 for adjust
10 ing the pressure between the rollers. The clutch mech~>
necessary.
anism 66 is again illustrated as of the type hereinabove
Reciprocation of the rack bar 41 is effected by the
referred to but it can comprise any type of mechanism
lever arrangement mounted at the top of the rectangular
wherein the shaft is gripped for turning movement in one
frame. At one side of the top 13 are a pair of spaced
direction of the mechanism and released in the opposite
bearing blocks 43 and 44. A lever bar 45 is pivotally
of less than 90 degrees. With the arrangement shown the
clutch can be rotated through several revolutions if
direction. Such mechanism are provided with lever con
nections 63 at the rear which are usually linked directly to the power press cam drive
mounted at one end in the block 43 with the other end
extending to a point slightly beyond the top of the bar
41 as shown in FIG. 1. A second lever bar 46 is pivotally
However, because of the unusual width of the rollers
mounted at one end in the block 44. The lever 46 is much
53 and 59 it will be noted that a vertical line from the
shorter than the lever 45 and is designed to extend to a
point approximately beneath the eccentric cam of the 20 cam drive will probably reach close to the extreme right
end of the device as shown in FIG. 3. A lever linkage
power press (not shown). A shaft 47 extends transversely
mechanism is therefore provided to transmit the recipro
between the end of the lever 46 to an intermediate portion
cating motion for operating the clutch 60. The base 54
of the lever 45. A universal bearing 48 is mounted on
is extended towards the right in FIG. 3 to support a block
the shaft 47 and is attached to the drive bar 49 which
25 64 having spaced rectangular bearing plates 65 at the
extends to the driving cam of the power press.
upper end. An elongated lever arm 66 is pivotally
A bar 50 is pivotally attached at 51 to the end of the
mounted at one end in the rear bearing block 65. The
lever arm 45 at one end and at 52 is attached to a short
other end of the lever arm 66 is pivotally attached to a
shaft 53 extending rearwardly from the center of the rack
universal joint 67 carrying a rigid‘connecting bar 68 at
bar 41. With the above arrangement the bar 49 is
reciprocated by the eccentric cam of the power press 30 tached to a second universal joint 69 which is pivotally
attached to the lever 63 for driving the clutch 60. An
causing reciprocation of the lever 4-5 and bar 50. This
other short lever arm 70 is pivotally attached at one end
results in the vertical reciprocation of the rack bar 41.
to the front bearing block 65. A transverse shaft 71
Where the rollers are extremely narrow it may be possible '
extends from the end of the lever arm 70 to an inter
to bend and connect the drive bar 49 directly to the rack
mediate portion of the lever arm 66. A universal hear
bar 41. However, in most instances there is a consider
ing 72 is attached to the shaft 71 and is connected to the
able lateral displacement between the rack bar 41 and a
driving bar 73 which extends to the power press cam
vertical line from the operating cam. While the bar 49
drive (not shown).
could conceivably be lengthened and bent laterally the
extreme angle causes buckling of the bar and results in
Vertical reciprocation of the bar 73 will cause reciproation of the lever arm 66, bar 68 and clutch lever 63
so that the vertical movement of the drive bar 73 is
transmitted laterally to provide a vertical movement of‘
the bar 53 which acts as an auxiliary drive bar to operate
the clutch 60. In different press installations it may be
desirable
to adjust the position of the shaft 71 to a more
45
breakage and an inaccurate and uneven feed. The lever 40
linkage illustrated permits the use of straight solid un
yielding drive forces which maintain the accuracy of the
clutch feed I? and still permit the feeding of long lengths
of stock. The length of the lever bar 45 therefore varies
with different installations depending on the width of the
rollers 14 and 15. The length of the lever arm 46 can
be ?xed since the position of the drive cam on most
power presses can be approximately located. However,
nearly vertical position beneath the cam drive.
Also,
the length of the stroke of the lever arm 66 may be varied
by adjusting the position of the shaft 71. This is accom
plished by providing the end of the lever arm 70 with a
if desired, the position of the shaft 47 may be made ad
justable in the manner illustrated in FIGS. 3 and 4.
50 slot 74 and providing the lever arm 66 with a similar
slot 75. This permits the shaft 71 to be moved along the
The form shown in FIGS. 1 and 2 illustrates a construc
slots and to be bolted in any desired location. The above
tion designed for feeding long lengths of stock. The form
construction thus provides a means of transmitting a
shown in FIGS. 3 and 4 illustrates a similar construction
vertical drive to an intermittent clutch located at an
used for feeding exceptionally wide stock. Small metal
stampings such as jewelry, electric terminals and similar 55 extreme lateral distance from a vertical line extending
from the main drive. No bending of any of the connect»
small metal parts are normally stamped from sheet stock
ing links is necessary thus ensuring long life and accuracy.
supplied in coils In the normal stamping operation of
Note that the form shown in FIGS. 1 and 2 and the form
this type the stock is two to four inches wide and oc
shown in F165. 3 and 4 accomplish the same purpose.
casionally runs to six inches. The manufacturer of small
stamped parts therefore usually uses a roller feed in which 60 The addition of the rack and gear drive even on a short
roller makes direct linkage impossible and therefore it is
the rollers are six or eight inches wide. The clutch
necessary to use the illustrated linkage which is the same
mechanism must be located at the end of the roller shaft
in both cases. FIGS. 3 and 4 show the conventional roller
and is therefore usually slightly to one side of a perpendi
feed hooked up to handle extremely wide stock. The
cular from the driving cam. The angle of drive is not
to severe and no particular problems of linkage are in 65 construction shown in FIGS. 1 and 2 will not only feed
in long lengths but will also handle extremely wide stock
volved. However, where the stock to be fed requires roll
due to the linkage involved. The installation of appli
ers that are 18, 20 or even 36 inches in width it becomes
cant’s device is simple regardless of the size of the device
virtually impossible to use a direct linkage from the driv
since all press connections are easily made at the top.
ing cam of the power press because of the severe angle
to which it must be bent in order to reach the clutch 70 Other advantages of the present invention will be readily
apparent to a person skilled in the art.
mechanism. The construction illustrated in FIGS. 3 and
4 overcomes this difficulty.
I claim:
1. A roller feed for a power press comprising a rectan
Regardless of the extreme length of the rollers, the
gular frame having a base, vertical sides and a top, a
roller feed mechanism is of conventional design compris
ing a rectangular frame having a base 54, top 55, and 75 pair of feed rollers mounted in said frame, a clutch
3,067,918
5
device mounted at one side of said frame for intermit
6
tently rotating said rollers, said clutch having a pair of
gular frame having a base, vertical sides and a top, a
pair of feed rollers mounted in said frame, a clutch device
clutch members one of which is connected to one of said
mounted at one side of said frame for intermittently r0
feed roll shafts, a lever having one end pivotally mounted
adjacent one end of the top of said frame, said lever eX
tending at an acute angle toward the other end of said
top, a drive bar pivotally attached to said lever inter
mediate the ends thereof, said drive bar extending ver
tically for connection with the press drive to impart verti
tating said rollers, said clutch having a pair of clutch
members one of which is connected to one of said feed
roll shafts, a lever having one end pivotally mounted ad
jacent one end of the top of said frame, said lever ex
tending at an acute angle toward the other end of said
top, a drive bar pivotally attached to said lever inter
cal reciprocation to said lever, and means linking the 10 mediate the ends thereof, said drive bar extending ver
tically for connection with the press drive to impart ver
tical reciprocation to said lever, and means linking the
outer end of said lever to the other of said clutch mem
gular frame having a base, vertical sides and a top, a pair
bers to impart an intermittent drive to said rollers, said
of feed rollers mounted in said frame, a clutch device 15 linking means including an operating arm on said clutch,
and a rigid vertical bar pivotally connected at its bottom
mounted at one side of said frame for intermittently rotat
end to said clutch operating arm and pivotally connected
ing said rollers, said clutch having a pair of clutch mem
at its upper end to said lever.
bers one of which is connected to one of said feed roll
6. A roller feed for a power press comprising a rec
shafts, a lever having one end pivotally mounted ad
jacent one end of the top of said frame, said lever ex 20 tangular frame having a base, vertical sides and a top,
a pair of feed rollers mounted in said frame, a clutch
tending at an acute angle toward the other end of said
device mounted at one side of said frame for intermit
top, a drive bar pivotally attached to said lever inter
tently rotating said rollers, said clutch having a pair
mediate the ends thereof, said drive bar extending ver
of clutch members one of which is connected to one of
tically for connection with the press drive to impart ver
tical reciprocation to said lever, and means linking the 25 said feed roll shafts, a lever having one end pivotally
mounted adjacent one end of the top of said frame, said
outer end of said lever to the other of said clutch members
lever extending at an acute angle toward the other end
to impart an intermittent drive to said rollers, said lever
of said top, a drive bar pivotally attached to said lever
comprising a pair of spaced parallel lever arms, one of
intermediate the ends thereof, said drive bar extending
said lever arms being longer and constituting the main
vertically for connection with the press drive to impart
lever, the other lever arm being shorter, a shaft extend
vertical reciprocation to said lever, and means linking
ing between the end of said shorter lever arm and said
the outer end of said lever to the other of said clutch
main lever arm, said drive bar being pivotally attached
members to impart an intermittent drive to said rollers,
to said shaft.
said lever comprising a pair of spaced parallel lever arms,
3. A roller feed for a power press comprising a rec—
one of said lever arms being longer and constituting the
tangular frame having a base, vertical sides and a top,
main lever, the other lever arm being shorter, a shaft
a pair of feed rollers mounted in said frame, a clutch
extending between the end of said shorter lever arm and
device mounted at one side of said frame for intermit
said main lever arm, said drive bar being pivotally at
tently rotating said rollers, said clutch having a pair of
tached to said shaft, said linking means including an op
clutch members one of which is connected to one of said
feed roll shafts, a lever having one end pivotally mounted 40 erating arm on said clutch, and a rigid vertical bar piv
otally connected at its bottom end to said clutch oper
adjacent one end of the top of said frame, said lever
ating
arm and pivotally connected at its upper end to
extending at an acute angle toward the other end of said
said lever.
top, a drive bar pivotally attached to said lever inter
7. A roller feed for a power press comprising a rec
mediate the ends thereof, said drive bar extending ver
tically for connection with the press drive to impart ver 45 tangular frame having a base, vertical sides and a top,
a pair of feed rollers mounted in said frame, a clutch
tical reciprocation to said lever, and means linking the
outer end of said lever to the other of said clutch members
to impart an intermittent drive to said rollers.
2. A roller feed for a power press comprising a rectan
outer end of said lever to the other of said clutch mem
bers to impart an intermittent drive to said rollers, the
pivotal connection between said drive bar and said lever
being adjustable longitudinally along said lever.
device mounted at one side of said frame for intermit
tently rotating said rollers, said clutch having a pair of
clutch members one of which is connected to one of said
50 feed roll shafts, a lever having one end pivotally mounted
adjacent one end of the top of said frame, said lever ex
tending at an acute angle toward the other end of said
gular frame having a base, vertical sides and a top, a
top, a drive bar pivotally attached to said lever inter
pair of feed rollers mounted in said frame, a clutch device
mediate the ends thereof, said drive bar extending ver
mounted at one side of said frame for intermittently ro
tically for connection with the press drive to impart
55
tating said rollers, said clutch having a pair of clutch
vertical reciprocation to said lever, and means linking
members one of which is connected to one of said feed
the outer end of said lever to the other of said clutch
roll shafts, a lever having one end pivotally mounted ad
members to impart an intermittent drive to said rollers,
jacent one end of the top of said frame, said lever ex
the pivotal connection between said drive bar and said
tending at an acute angle toward the other end of said top,
60 lever being adjustable longitudinally along said lever,
a drive bar pivotally attached to said lever intermediate
said linking means including an operating arm on said
the ends thereof, said drive bar extending vertically for
clutch, and a rigid vertical bar pivotally connected at its
4. A roller feed for a power press comprising a rectan
connection with the press drive to impart vertical recip
bottom end to said clutch operating arm and pivotally
rocation to said lever, and means linking the outer end
connected at its upper end to said lever.
of said lever to the other of said clutch members to im 65
8. A roller feed for a power press comprising a rec
part an intermittent drive to said rollers, said lever com
tangular frame having a base, vertical sides and a top,
prising a pair of spaced parallel lever arms, one of said
a pair of feed rollers mounted in said frame, a clutch de
lever arms being longer and constituting the main lever,
vice mounted at one side of said frame for intermittently
the other lever arm being shorter, a shaft extending be
rotating said rollers, said clutch having a pair of clutch
tween the end of said shorter lever arm and said main 70 members one of which is connected to one of said feed
lever arm, said drive bar being pivotally attached to said
roll shafts, a lever having one end pivotally mounted ad
shaft, said main and auxiliary lever arms having opposed
jacent one end of the top of said frame, said lever ex
longitudinal slots, said shaft being adjustably mounted
tending at an acute angle toward the other end of said,
in said slots.
'
top, a drive bar pivotally attached to said lever inter
5. A roller feed for a power press comprising a rectan 75 mediate the ends thereof, said drive bar extending ver
3,067,918
7
tically for connection with the press drive to impart ver
tical reciprocation to said lever, and means linking the
outer end of said lever to the other of said clutch mem
bers to impart an intermittent drive to said rollers, said
lever comprising a pair of spaced parallel lever arms, one
of said lever arms being longer and constituting the main
lever, the other lever arm being shorter, a shaft extending
between the end of said shorter lever arm and said main
8
drive to said rollers, said linkage means including a gear
mounted on said clutch, a vertically reciprocable rack bar
mounted in engagement with said gear, and a rigid con
necting bar having one end pivotally attached to said rack
bar and the other end pivotally attached to said lever, a
plurality of rollers mounted on the top of said frame and
a plurality of complementary rollers mounted on the bot
tom of said frame in vertical alignment with said top
rollers, said rack bar being vertically mounted between
lever arm, said drive bar being pivotally attached to said
shaft, said main and said shortened lever arms having op 10 said vertically aligned rollers.
12. A roller feed for a power press comprising a rec
posed longitudinal slots, said shaft being adjustably
tangular frame having a base, vertical sides and a top, a
mounted in said slots, said linking means including an
pair of feed rollers mounted in said frame, a clutch device
operating arm on said clutch, and a rigid vertical bar
mounted at one side of said frame for intermittently rotat
pivotally connected at its bottom end to said clutch oper
ating arm and pivotally connected at its upper end to said 15 ing said rollers, said clutch having a pair of clutch mem
bers one of which is connected to one of said feed roll
lever.
shafts, a lever having one end pivotally mounted adjacent
9. A roller feed for a power press comprising a rec
one end of the top of said frame, said lever extending at
tangular frame having a base, vertical sides and a top,
an acute angle toward the other end of said top, a drive
a pair of feed rollers mounted in said frame, a clutch
device mounted at one side of said frame for intermit 20 bar pivotally attached to said lever intermediate the ends
thereof, and a drive bar extending vertically for connec
tently rotating said rollers, said clutch having a pair of
tion with the press drive to impart vertical reciprocation
clutch members one of which is connected to one of said
to said lever, and means linking the outer end of said lever
feed roll shafts, a lever having one end pivotally mounted
to the other of said clutch members to impart an intermit
adjacent one end of the top of said frame, said lever ex~
tent drive to said rollers, said lever comprising a pair of
tending at an acute angle toward the other end of said
spaced parallel lever arms, one of said lever arms being
top, a drive bar pivotally attached to said lever inter
longer and constituting the main lever, the other lever arm
mediate the ends thereof, said drive bar extending ver
lbeing shorter, a shaft extending between the end of said
tically for connection with the press drive to impart ver
shorter lever arm and said main lever arm, said drive bar
tical reciprocation to said lever, and means linking the
being pivotally attached to said shaft, said linkage means
outer end of said lever to the other of said clutch mem
including a gear mounted on said clutch, a vertically re
bers to impart an intermittent drive to said rollers, said
ciprocable rack bar mounted in engagement with said gear,
linkage means including a gear mounted on said clutch,
and a rigid connecting bar having one end pivotally at
a vertically reciprocable rack bar mounted in engage
tached to said rack bar and the other end pivotally at~
ment with said gear, and a rigid connecting bar having
one end pivotally attached to said rack bar and the other 35 tached to said lever, a plurality of rollers mounted on the
end pivotally attached to said lever.
10. A roller feed for a power press comprising a rec
tangular frame having a base, vertical sides and a top,
a pair of feed rollers mounted in said frame, a .clutch
device mounted at one side of said frame for intermit- ..
tently rotating said rollers, said clutch having a pair of
clutch members one of which is connected to one of said
top of said frame and a plurality of complementary rollers
mounted on the bottom of said frame in vertical align
ment with said top rollers, said rack bar being vertically
mounted between said vertically aligned rollers.
13. A roller feed for a power press comprising a rec
tangular frame having a base, vertical sides and a top, a
pair of feed rollers mounted in said frame, a clutch device
mounted at one side of said frame for intermittently rotat
feed roll shafts, a lever having one end pivotally mounted
ing said rollers, said clutch having a pair of clutch mem
adjacent one end of the top of said frame, said lever
bers one of which is connected to one of said feed roll
extending at an acute angle toward the other end of said
shafts, a lever having one end pivotally mounted adjacent
top, a drive bar pivotally attached to said lever inter
one end of the top of said frame, said lever extending at
mediate the ends thereof, and a drive bar extending ver
an acute angle toward the other end of said top, a drive
tically for connection with the press drive to impart ver
bar pivotally attached to said lever intermediate the ends
tical reciprocation to said lever, and means linking the
thereof, said drive vbar extending vertically for connection
outer end of said lever to the other of said clutch mem
with the press drive to impart vertical reciprocation to said
bers to impart an intermittent drive to said rollers, said
lever, and means linking the outer end of said lever to the
lever comprising a pair of spaced parallel lever arms, one
other of said clutch members to impart an intermittent
of said lever arms being longer and constituting the main
drive ‘to said rollers, said linkage means including a gear
lever, the other lever arm being shorter, a shaft extend
mounted on said clutch, a vertically reciprocable rack bar
ing between the end of said shorter lever arm and said
mounted in engagement with said gear, and a rigid con
main lever arm, said drive bar being pivotally attached
necting bar having one, end pivotally attached to said rack
to said shaft, said linkage means including a gear mounted
bar and the other end pivotally attached to said lever, a
on said clutch, a vertically reciprocable rack bar mounted
plurality of rollers mounted on the top of said frame and
in engagement with said gear, and a rigid connecting bar
having one end pivotally attached to said rack bar and 60 a plurality of complementary rollers mounted on the bot
tom of said frame in vertical alignment with said top
the other end pivotally attached to said lever.
11. A roller feed for a power press comprising a rec
rollers, said rack bar being vertically mounted between
said vertically aligned rollers, said frame top and bottom
tangular frame having a base, vertical sides and a top,
having cut out portions at their read edges in vertical align
a pair of feed rollers mounted in said frame, a clutch
device mounted at one side of said frame for intermittent 65 ment between said rollers, said rack bar being vertically
reciprocable in said cut out portions.
ly rotating said rollers, said clutch having a pair of clutch
members one of which is connected to one of said feed roll
shafts, a lever having one end pivotally mounted adjacent
one end of the top of said frame, said lever extending
14. A roller feed for a power press comprising a rec
tangular frame having a base, vertical sides and a top,
a pair of feed rollers mounted in said frame, a clutch
at an acute angle toward the other end of said top, a drive 70 device mounted at one side of said frame for intermit
bar pivotally attached to said lever intermediate the ends
tently rotating said rollers, said clutch having a pair of
thereof, said drive bar extending vertically for connection
with the press drive to impart vertical reciprocation to said
clutch members one of which is connected to one of said
feed roll shafts, a lever having one end pivotally mounted
lever, and means linking the outer end of said lever to the
adjacent one end of the top of said frame, said lever
other of said clutch members to impart an intermittent 75 extending at an acute angle toward the other end of said
3,067,918
10
9
top, a drive bar pivotally attached to said lever inter
mediate the ends thereof, and a drive bar extending verti
cally for connection with the press drive to impart verti
cal reciprocation to said lever, and means linking the
outer end of said lever to the other of said clutch mem
bers to impart an intermittent drive to said rollers, said
lever comprising a pair of spaced parallel lever arms,
one of said lever arms being longer and constituting the
main lever, the other lever arm being shorter, a shaft
extending between the end of said shorter lever arm and
said main lever arm, said drive bar being pivotally at
tached to said shaft, said linkage means including a gear
mounted on said clutch, a vertically reciprocable rack
bar mounted in engagement with said gear, and a rigid
connecting bar having one end pivotally attached to said 15
rack bar and the other end pivotally attached to said
lever, a plurality of rollers mounted on the top of said
frame and a plurality of complementary rollers mounted
on the bottom of said frame in vertical alignment with
said top rollers, said rack bar being vertically mounted
between said vertically aligned rollers, said frame top and
tical alignment between said rollers, said rack bar being
vertically reciprocable in said cut out portions.
25
227,909
Marshall ____________ __ May 25, 1880
‘2,271,795
2,277,967
2,282,945
2,317,481
2,574,137
2,622,518
2,758,837
2,841,997
2,876,646
2,970,489
2,997,888
20
bottom having cut out portions at their rear edges in ver
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1934
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