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Dec. 10,- 1946.
H. c. BEHREN$~_ -
Filed ‘Oct. 19, 1943
2 Sheets-Sheet 1
Herbal“)? CfBe/mems
Dec." 10, 1946.
H. c, B’EHRENS -
Filed Oct. 19, 1943
-2 Sheets-Sheet 2
Patented Dec. 10, 1946
Herbert C. Behrens, Haddon Heights, N. J., as
signor to Samuel M. Langston 00., Camden,
N. .L, a corporation of New Jersey
Application October 19, 1943, Serial No. 506,823
7 Claims.
(01. 74-495)
centric bearing, the pinion of said member will
be. maintained in proper mesh with the interior
This invention relates to that type of mecha
nism in which. there is provided a rotary mem
ber, the position of which is to be adjusted from
time to time while maintaining proper driving
purposes, as for instance, to act upon material
teeth of the annular gear which is co-axial-with
the eccentric bearing. Thus, there is. only a
single gear for transmitting power from the
driving gear to the gear of the rotary member
and the proper meshing with both is maintained
passing through the machine, and the necessity
at all times.
connections to a source of power. The rotary
‘ member may be employed for various different
In the accompanying drawings,
for adjustment may be for various different rea
Fig. 1 is a diagrammatic view of a. gear train
sons, for instance, to permit the proper action 10
embodying my invention.
on material of different thicknesses.
Fig. 2 is a section through. a portion of a ma
An. example of a machine in which my inven
’ chine embodying the gear train.
tion may be employed to advantage is a printer
Fig. 3 is a section on they line .3—-3 of Fig. 2,,
slotter for forming box blanks from sheet ma
terial of different thicknesses. In such a ma 15 but with the gears in a different adjusted posi
chine there are usually provided a pair of feed
Fig. 4 is a section similar to a portion, of Fig.
rollers for the sheet, one or more pairs of print
3, and showing a further adjusted position of
ing and impression rollers for printing on a
the gears, and
sheet, a: pairlof scoring rollers, and a pair of
Fig. 5 is a longitudinal section through a modi
slotting rollers. It is necessary to relatively 20
?ed form of idler gear.
adjust the rollers of some, if not all, of such
In the apparatus ‘shown in Fig. 2, there are
pairs, in accordance with the thickness of the
provided two rollers 10 and II between which
blank operated upon, so as to obtain proper feed
material is to pass. In practice, these rollers
ing, printing, scoring, and/or cutting. My in~
vention may be employed with one roller of each 25 may be modi?ed through a wide range and in,
accordance with the purpose they are to serve.
or all of said pairs, as well as for rotary members
They may be feed rollers, crushing rollers, or
of other types of machines.
the like, or may be provided with the proper
It is common practice to mount a roller in
elements for slotting, scoring, slitting, printing
eccentric bearings which may be rotated to the
desired extent to vary the distance between the 30 or otherwise treating sheet material. The upper
roller 10 is mounted in stationary bearings 12 of
periphery of the roller and some other element
any suitable character,_while the bearing 13 is
such as another roller. Various mechanisms
mounted for adjustment’ toward and from the
have been employed for transmitting power to a
bearing I2 to bring the two rollers to the proper
roller mounted in eccentric bearings, so as to
deliver power thereto with the roller in its var 35 spacing. This adjustment is by‘ means of a
sleeve M mounted for rotation in a frame mem=
ious adjusted positions, but all such mechanisms
ber l5 and having the bearing l3 eccentrically'
with which I am familiar are open to certain
disposed in respect to the axis of said sleeve M.
objections, such as failure of the gears to prop
Thus, the bearing 13 is eccentrically mounted
erly mesh in some positions, the use of sliding
connections subject to wear and lost motion, 40 and by rotation of the sleeve M, the rollers may
be brought toward or from each other. Any
pivoted links subject to wear at the pivots and
suitable means may be provided for oscillating
carrying a train of gears, and the use of various
the eccentric sleeve M; for instance, its outer
other devices subject to the same or other objec
portion may be in the form of a gear l6 mesh-1
ing with a pinion I‘! on a shaft l8 provided‘ with
The main object of the present invention is
a handle [9 or other‘suitable means forrotat
to provide a simple mechanism in which the
ing the shaft and pinion and? thereby rotating
gears are constantly in proper and accurate
the eccentric sleeve. ,Although‘ in the drawings‘
I have shown the supports vfor only one end of the
rollers, it will be understood that the parts so.
far described may be duplicated at‘the opposite
end of the machine and the, shaft l8‘ provided
mesh with the roller in all of its various operat
ing positions, which employs the minimum num
ber of gears and avoids the use of sliding con
nections and other such objectionable features.
In carrying out my invention, 1'. provide as an
important feature an annular gear having in
ternal and external teeth, and which has its
axis in alignment with the axis of the eccentric
bearing of the rotary member. Power may be
transmitted to this annular gear through the
exterior teeth and the interior teeth may mesh
with a second pinion so that as' the shaft is ro
tated, the two rollers I0 and ii! are kept: in‘
parallelism. The "upper roller is provided with
a suitable driving gear .20'which may receive»
power from any'suitable source through a gear
or pinion meshing therewith or the upper roller
with a pinion on said. rotary member so that
l0 may be directly driven in- anyother'. suitable. I
as the position of thebearing of said rotary
member is adjusted by the rotation of the ec
The importanti'ieatura of my’ inventibn;
lowing claims are to be interpreted as includ
ing this form, as well as that shown in Fig. 2.
Having thus described my invention, what I
to the means for the driving of the roller H in
all adjusted positions of the latter, and in such
a way that the gears of the gear train are kept in
proper mesh at all times. As shown, there is .pro
vided an idler 2| mounted in suitable bearings 22
in a frame part 23 of the machine. This frame “
. part may serve as a cover to protect and con- f
ceal the gear train. The idler has an annular ‘
claim as new and desire to secure by Leters Pat
ent is:
1. Apair of rotary members, each having a
gear, an eccentric bearing for supporting one of
said members, whereby it may be rotated to move
?ange 24 with external teeth 25 and internal1 said member toward and from the other member,
teeth 26; the former meshing with the gear 20 10 and an annular gear co-axial with said eccentric
of the roller l0 and the latter meshing with a
, pinion 2'! on the roller
ll. . The idler 2|
mounted with its axis in alignment with the axis ,
, of the exterior of the sleeve I4 so that power '
bearing, the gearv of one of said members mesh
ing with inwardly facing teeth on said annular
gear, and the other of said members having a
gear meshing with exterior teeth on said annular
is transmitted from the gear 20 to the idler 15 gear.
2. In combination, a pair of rotary members,
through the exterior teeth on the latter and from
each having a gear, an eccentric bearing forone
the idler through the internal teeth to the pinion
21 of the roller ll. ‘ '
of said members, and an annular gear eccen
trically disposed in respect to the axis of said last
are ?xed, the idler and the gear 20 will remain 20 mentioned member, and having internal teeth
meshing with the gear of one of‘ said‘ members
in mesh at all times. As the axis of the eccentric
and exterior ‘teeth meshing with the gear of the
sleeve I4 is in alignment with the axis of the
other member.
idler, the rotation of the eccentric sleeve will
3. Driving means for ‘a'pair of juxtaposed par-i
move the lower roller in an arcuate path, but the
pinion 21 will remain at all times in proper mesh 25 allel rollers, including a pairof gears, one on each
roller, an annular idler ‘gear having internal teeth‘
with the internalgear of the idler, Thus, in all
meshing with one of said pair of gears, and ex
positions of the eccentric and therefore all posi
ternal teeth meshing with the other of said-pair
tions of the roller ii, there will be the proper
of gears, and an annular sleeve encircling the!
gear meshing at all times and the proper trans
axis of and supporting the roller. having said last
mission of power. The arcuate path of the axis
inentioned gear, said sleeve having an 'eccen-i
of the roller II is indicated by the curved line A
trically disposed outer supporting surface where-'1.
in Fig. 3. In this ?gure, the aXis of the roller
by upon rotating said sleeve about the axis 'of'
H is in about the position of the numeral 1
said last mentioned roller the spacing between‘
of a, clock dial and in respect to the axis of the
As the axis of the roller i0 and the idler 2|
35 said rollers is varied. ’
In Fig. 4, the gears are in the position which
, they would‘ occupy after‘ rotating the eccentric v
4. In combination, a frame
member, a rotate
able member supported by and journalled ‘there-r
in for rotation about a ?xed axis,‘ asecond rolleri- !
about, its axis through about 60° to the 3 o’clock
having an annular bearing ‘member presenting,
position on a clock dial. The minimum distance
peripheral surface supported 'in said frame
between the rollers l0 and II will be when the
member, and eccentricallydisposed in respect to'f
axis of the roller .H is directly above the axis of
the axis of said last mentioned roller, means for.
the eccentric and the maximum spacing will be
rotating said bearing member to vary the spac
when the axis of theroller II is directly below
ing between said rollers, and driving connec»
the axis of the eccentric. By selecting the proper
eccentricity of the axis of the roller I I in respect 45 tions between said rollers. including’ a‘pairliof
to that of the sleeve‘lli, the range of adjustment '
of the roller. H maybe made greater or lesser
than in the speci?c construction. illustrated.
In Fig. 1 there is shown rather diagrammate
gears, one on each roller, and an‘ idler gear 00'
axial with said annular bearing member, and:
having external‘ teeth meshing with one of said»
pair of gears, and internal teeth
meshing ‘with.
‘ ically, the gear train ofa machine in which there 50 the ether of said pair of gears. <
are a plurality of operating pairs of rotary mem
bers for acting in succession on sheetmaterial
passing therebetween. In this case, power may
be delivered to agear 30 and transmitted there
. from to gears 26a, 20b, and Zilc and thesegears
may mesh'with the outer gear teeth 25 of annular
idlers 2 I, and the inner teeth 26 of the idlers may
5. In combination a frame, aipair'of parallelE
juxtaposed rotatable members, each havingf'a‘
bearing in said frame, one of said’ bearings hav
ing an eccentric peripheral surface supported in
said‘ frame, and an idler gear, having external»
teeth meshing with one of said ?rst ,lmentionedi
gears, and internal teeth‘ meshing with the otherv
of said gears,'said‘idleri gear being coaxial with
mesh with the pinions 21 of the‘ adjustable roll- '
the peripheral surface of said bearing member; "
ers. In Fig. 1, the‘three idlers'are shown in dif~
6; In combination a' frame ‘memben'apair of
, ferent adjusted positions so that the spacebe 60
. '‘ tweenthe successive pairs of rotary members wil1<
‘ be progressively less from the left tothe right. .
In the construction: shown in Fig. 2,,the idler
parallel juxtaposed rotatable‘members project;
ing ‘throughjsaidv frame, a sleeve in said 'framev
for supporting oneof saidmembers and having
an eccentric peripheralsupporting surface,"'gears
25 on the same part andrdirectly opposite to each 651 said
on said
and and
an idler
coaxial teeth:
other. .It will be obvious that in vsome construc
tions or for some purposes, either set of gear
and internal teeth meshing, with theother of said
, teeth may be axially offset in respect to the other,
has the internal teeth 25 and the external teeth ‘
, or they may be formed on separate parts secured
, together, or they-may be of different relative di 70
ameters from those shown. : In Fig. 5 I have illus
trated a modified. idler gear memberv 21a, in
which the teeth ‘25a are of smaller pitch diameter. ‘
‘ than the teeth'26a, are axially offset, and'are on
p a ?angez‘zlfb bolted to the member Zia. The:fol
7. Apparatus as. de?ned inclairntipin which.
said sleeve has a, gear coaxial with said 'idler'g'eai"
and a pinion meshingftherewith for rotating; said’
1 firearm?
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