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Патент USA US2409310

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06L 15, 1946»
R. o. PETERSON ‘
- 2,409,309
ROTARY BRUSH
Filed May s, 1945
3 sheets-sheet 1
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INVENTOR,
RUBEN O.PETERSON'
ATTORNEYS
we“,
Oct; '15, 1946.
R. O. PETERSON
2,409,309
ROTARY BRUSH
Filed May 6, 1943
3 Sheets-Sheet ‘2
IN VEN TOR.
RUBEN O.PETERSON
BY
1* 194;.
ATTORNEYS
Oct. 15, 1946.
R.. o. PETERSON
2,409,309
ROTARY BRUSH
Filed May 6, 1943
s Sheets-Sheet '3‘
INVENTOR.
RUBEN 0- PETER SON
wmjwwms»
ATTORNEYS
Patented Oct. 15, 1946
‘2,409,309
UNITED STATES PATENT OFFICE
' Ruben
‘ 0. Peterson, University Heights, Ohio, as
signor to The Osborn Manufacturing‘ Com
pany,‘ Cleveland, Ohio, at corporationfofkohio '
Application May 6, 1943», Serial‘No. 485,867:
1.
16 Claims. (CI. 1.51-1.81)
2,
The present improvements relating to rotary
forms in which the principle of the invention
may be used.
brushes-have more particular regard to brushes
of this type in which several sections are as
sembled on a mandrel to form a cylindrical brush
In said annexed drawings:
‘Fig, 1 is a side elevational' view of my‘ pres
of desired width or axial extent.
As pointed out in my co-pending application
Serial‘ No. 878,547 ?led February 12, 1941 (now
Patent No.'2,320,‘384 dated June 1, 1943), it has
ent improved brush section including channel
form brush back andnovel form of adapter;
Fig. 2 is a sectional view on a somewhat larger
scale taken on the line 2-.—2 Fig. 1 showing two
become desirableto utilize in a brush of the fore
going type a plurality of annular brush sections, v10
each comprising an annular channelform back
and brush material retained therein as by a wire
or like element extending around through re~
doubled or looped brush material. However, the
mounting of such sections where, as is usually 15
the case, they have an internal diameter sub
the annular brush sections and for providing at
the same time, as is desirable, for the proper ven
i. e. looking radially inwardly as indicated by the
arrow 3 on Fig. l;
’_
‘
Fig. 4 is a broken sectional view showing a de
tail of the construction of the brush section;
Fig. 6 is a side elevation of a modi?ed con
so-called adapter ring disclosed in the aforesaid
co-pending application constitutes one satisfac
’
3 is a developed view of a portion of the
channeliorm. back as viewed from the outside,
Fig. 5 is a transverse section thereof as indi
cated by the line 5-95 Fig. 4,;
.
stantially larger than that of the arbor on which
they are carried, presents a Special problem. The
tory means for thus supporting and mounting
such sections as assembled;
20
struction of brush embodying my present im.-'
provements, more particularly those for ventilate
ing the brush?
’
, Fig, 7 is a sectional view of such modi?ed con
struction, the plane of the section being indi
tilation of the assembled brush. However, such
gated. by the line 'l-g'! Fig. 6;
disclosed rings being fashioned of metal add con 725 Fig. 8 is a perspective view of the brush sec
siderably to the cost of the brush, and since the
tion proper which in this construc‘tiontakes the
section including the adapter ring is ‘usually
‘form of a helix instead of an annular section;
thrown away when the brush material has. been
Fig. 9 is a side elevation on a larger scale of a
worn down, a considerable wastage of metalis
portion of such brush section;
also involved.
One principal object of the present invention,
accordingly, is the provision of an improved
adapter for supporting annular brush sections in
30 _ Fig. 10 is a transverse section likewise on a
larger scale Showing several convolutions of the
brush ‘base in juxtaposed relation;
11 ‘is a side elevation of still another mod.
i?ed' construction of brush embodying certain of
relatively inexpensive and non-critical material,’ 35 my present improvements; and
the manner described, which may be made of
be light of weight and yet su?iciently strong and
rugged to withstand the severe service imposed.
Another important object of the invention is
to provide‘ for the direct and effective ventilation
of the assembled brush sections. In this aspect,
the present application constitutes a continua
tion in part of my above-mentioned pending ap
plication, which discloses one speci?c form of
ventilating means, particularly suited to the
construction of adapter to which said application
is directed.
’
Fig. 12. is‘ a section thereof, the plane of the
section being indicated by the line ‘I ,2—l_2 Fig. 11.
previously indicated, the brush element of
the‘ component sections of which one is shown
in side elevation in Fig. 2 and two are shown in
assembled relation in the cross-sectional view of
Fig. 2_, comprises a channelform base I in which
the brush material 2 is held ' by any suitable
means. ‘ Such brush material may ‘be composed
45 of ‘wire drawn to desired degree of ?neness, tam
pico; or any other material usually employed ‘for
the purpose.‘ As illustrated, means for retain
ing ‘the brush material in the channelform ‘back
related ends, said invention, then, consists of
comprise a wire ‘3 which encircles the back, pass
the means hereinafter fully described and par 50 ing through the redoubled or looped brush ma
ticularly pointed out in the claims.
terial,‘ which is disposed to form a substantially
The annexed drawings and the following de—~
continuous or uninterrupted layer or strip, while
To the accomplishment of the foregoing and
scription set forth in detail certain structure em
the side walls of the channel extend above, i- @
bodying the invention, such disclosed means con—
,adially outwardly, beyond such retaining wire
stituting, however. but one of various structural 55 or equivalent element.
2,409,309
As best shown in Figs. 3, 4 and 5, such side
walls are formed into alternate depressed areas
4 and intermediate lands 5, such depressed areas
on one side being located approximately oppo
site to such areas on the other side, and such
same general shape and dimensioned to fit
within a particular size of annular brush section.
In other words, my improved brush construction
permits the use of a variety of materials and,
therefore, the selection of the one most suitable
for the type of work to be done by the brushl.
When light weight is important, many light ma
terials are adaptable to this construction. When
areas extending radially the entire width of the
side. Furthermore, as best shown in Fig. 5, the
depressed areas increase in depth from the inner
one material becomes more economical than an
to the outer edge of the side, i. e. are of greater
depth at such outer edge so that the outer por-_ in other, the transition from one material to a more
‘ economical material is readily made. Further
tions thereof converge beyond the wire 3, or
. more, standardized sections can be mounted on
equivalent brush material member. Accord
adapters of similar design differing principally
ingly these depressed areas assist in clamping
fin the material from which they are made, but
said member and brush material within the base,
and further serve to prevent movement of the l.) thereby becoming suitable for speci?c purposes.
The unique conformation given the side walls
latter lengthwise of said base. Moreover, such
of the channelback, coupled with the provision
depressed areas, formed in the fashion described, .
of the recesses II in the periphery of the disk
serve to a degree to divide the brush -_material
into a succession of tufts which are held against
relative circumferential movement in the chan
nelform back.
The adapter member whereby such channel
form back with brush material retained therein
is adapted to be mounted on an armor (shown
in dotted outline in Fig. 2), may be generally
described as a disk I!) which may be of laterally
compressible material which has a diameter such
that it snugly ?ts within such back. Preferably
at uniformly spaced intervals the periphery of
such disk is cut away to form scalloped recesses
H, the latter corresponding in location with one
or more (two as shown) of the depressed areas
4 of the channelform brush back seated on the
disk. Furthermore, as shown in Fig. 2, the
adapter, permits the flow of air through such re
cesses when properly aligned as shown in Fig. 2
and thence radially outwardly through the cor
responding depressed areas 4 in the side Wall of
the channelform back.
Finally, the adapter disks, when made of com
pressible material as described, may be clamped
together on an arbor so that there is su?icient
frictional engagement between the brush sec
tions to rotatively interlock them all together
and give all the effect of a solid cylindrical core
U- for supporting the brush rings. A brush thus
assembled of sections with disk adapters of ?ber
or composition board material will weigh sub
stantially less than where adapter disks formed of
light gauge sheet metal are used.
1
It will be understood that the adapter just
described may be advantageously utilized with
thickness of the disk In is made slightly larger
than that of such back or base so that when a
just a single brush section, in which case the
plurality of sections are clamped together in the
ventilating feature is unimportant. Further
more, by constructing such adapter of a slightly
will yield, i. e. be compressed slightly, to the
yielding
material, a brush Whether made up of
40
point where the successive backs are brought‘
one or more sections mounted on such adapter
substantially into contacting relation. In the
may be made so as to fit snugly on an arbor of
case of the two brush sections shown in Fig. 2,
a given nominal size but varying slightly due to
it should be explained that they are represented
wear or other factors. Furthermore, such
in the condition prior to such application of end
. adapter, whether supporting a single section or
wise clamping pressure.
a series of assembled sections, may be screwed
Speci?cally, in the preferred ‘construction of
directly onto a threaded arbor and provide a
the disk adapters [0 shown in the drawings,‘each
sufficiently secure attachment to permit the op
such adapter comprises a central layer Illa of
eration of a single section or multiple sections
indurated ?ber board or equivalent relatively
hard pressed or molded composition such as- used 50 without the encumbrance of a nut or shaft pro
jecting so as to endanger work-pieces being
as building material, and facing layer lUb of
brushed.
softer composition such as ordinary composition
The modi?ed construction of brush illustrated
board or heavy cardboard. Such central and fac
in Figs. 6 to 10 inc. differs from the one just de
ing layer which thus compose the individual
disk may be secured together in any suitable 55 scribed in that a single mounting is utilized to
support the brush sections instead of providing
manner as by means of staples l2 driven into the
each of the latter with a separate adapter and in
‘disk from opposite sides.
that the brush sections are constituted of the
For the purpose of securing the channelform
successive convolutions of a channelform brush
brush back onto its adapter disk, lugs or tongues
M are struck up from the bottom wall of such 60 base which is in the shape of a helix, instead of
such section comprising backs of closed annular
back at opposite points thereof corresponding in
shape.
'
location with the portions of the disk lying be
Referring ?rst to the brush element proper,
tween successive recesses II in the periphery of
this, as just stated, comprises a channelform back
the latter. These lugs or tongues incidentally to
being thus struck up are bent inwardly suffi 65 20 in which the brush material 2| is retained,
such back being in the shape of a helix as illus
ciently to interlock with the central layer Illa com
trated in Fig. 8. The construction of this brush
posing the adapter disk, the intervening portions
element and the method of constructing the same
of the facing layers leb being simply pressed
is substantially as described in my Patent No.
inwardly so as to leave small notches l5 (see Fig.
.usual manner on an arbor the adapter disks
2,303,386 dated December 1, 1942, but with modi
_5) which represent displaced material of such
outer or facing layers.
-
?cations which will now be described. As in such
-
patent, the side walls of the channel base 20 have
teeth 22 punched inwardly therefrom at spaced
‘It will be understood that’ instead of being of
the composite or layer construction just de
‘'scribed, the disk adapter In‘ may be formed of. _ :intervals which are disposed transversely to the
a single piece of suitable material, having the
75
walls and in overlapping' relation so as to ?rmly
21,409,309
‘secure-in place-‘the retaining member 2‘3‘>around
which the brush material 24 is looped, “At cir
cumferentially spaced intervals such ‘side walls
areiurther formed with radial depressions '25
' ‘port 21 are staggered in relation to each other
‘so that a substantially continuous cylindrical seat
is ‘formed for the brush sections. The transverse
grooves or recesses 28 are formed in such trans‘
which correspond ‘with the depressed areas 4 in 5 versely disposed portions ill of the annular sup
the ‘previously described construction of brush
port, and the radially extending portions 30 are
and which are designed to serve the same pur
provided with openings>32 which coincide there
pose, i. e. permit the flow of airoutwardly be
i with so that recesses or grooves are freely open
tween the contiguous sections of the brush’ ele
at both’ ends when the brush is assembled.
ment when assembled in place as shown inlFig.
It will ‘be understood that the annular support
'10. While normally in the manufacture of this
just described may not only be used with a heli
helically shaped brush element ‘the outer edges
cally wound ‘brush base illustrated in connection
of the side walls of the channel base should con
therewith but with an- assembly of annular brush
verge inwardly, there is a tendency for such edges
sections such as utilized in the ?rst described
to spread apart ‘due to expansion of the brush
form of my improved brush.
‘
material, and in order to insure a freely open
In tho modi?ed form of brush illustrated in
passageway between the assembled sections addi
Figs. 11 and 12 the brush proper, as in the ?rst
tional circumferentially spaced depressions 2B are
described form, consists of a plurality of annular
formed in the outer portions of such side walls.
bases 35 of channelform in which the brush mate
These will be desirably located between the por 20 rial is retained, and the side walls of such bases
tions from which the teeth 22 are» struck up; how
will be provided with alternating depressed areas
ever, irrespective of whether they coincide in loca
and intermediate lands just as in such ?rst de
tion with the depressions 25 there will be free
scribed form. In other words, the difference. in
communication with the latter due to the con
construction between the two forms resides in
vergence of the side walls. In other words, just 25 ‘the construction of the adapter or support on
as in the-?rst described form of brush, depressed
areas are provided which extend transversely
which the brush sections are mounted.
acrossthe side walls between intermediate lands
that contact when the successive convolutions
which constitute the‘brush sections are pressed 30
together as- assembled on the ‘adapter or mount‘
ing-Zl,
Such mounting, as indicated, instead of being
comprises an inner tubular member 36 provided
at one end with a‘permanently. attached or ?xed
?ange a": and at the other end with a ?ange 33
which is threaded on such end so that by rotation
made up of a series of disks, one for. each ‘brush
brush sections therebetween. vIntermediate of
the ?angess'l and 33, member 3t carries .oneor
more‘ (three as shown) disks 39, the outer diam.
eter of which approximately corresponds with
the inner diameter of the brush bases 35, and
section, here takes the form of a hollow annulus,‘
the bore‘ of which is of the properdiameter to ?t
the arbor‘ (not shown) which‘ serves to drivethe
brush when in use, while the outer cylindrical
‘face of said member is of the properdiameter to
receive the helical brush element/just described.
At circumferentially spaced‘ intervals such outer
face of‘ supporting member 21‘is provided with
transverse grooves or recesses 28' which provide
free communication with such of the‘depressions
25 in the side walls of the ‘brush sections as coin
cide in location with such grooves or recesses. It
will be understood that the latter are su?iciently
.
This support, as illustrated in‘Figs. 11 and 12,
such ?ange may be moved towards ?ange 3"! in
crdert'o compress the bases 35 of the assembled ‘
secured to such outer face. is a series of radially
disposed bars 40 on which such bases are directly
received and supported. In addition, the ?xed
?ange 3*.’ is. provided with an integral inwardly
‘directed rib 31a and the adjustable ?ange 38
with a separate inwardly directed similar rib 38a
on which one or more of the corresponding outer
sections of the brush are received and supported.
Both of said ?anges 31 and 38, together with the
intermediate ?anges 39, are provided with aper
side wall will thus be in communication with the
tures lil whereby freecommunication is afforded.
transverse passageways'in the outer‘surface of 50 with the entire interior of the mounting or sup
the supporting ‘member 21.
‘
port, and from the latter with the passages
Furthermore, since the channelform base of
formed between adjacent sections of the brush
‘the brush element is rounded at its inner corners,
by means of the depressed areas formed in‘the
circumferentially extending spaces 25a - will be
sidewalls of their channelform‘ bases, such as
numerous and so spaced’that one or more in each
provided between the assembled sections as shown
'bymeans of which communication isaiforded be:
in the two previously described constructions of
brush is- aiforded by means of the transverse
tween the grooves or recesses 28 and such of the
grooves or recesses.
radial depressions 25 in the side walls of said
bases as do ‘not directly coincide in location.
The communicating passages thus providedin
each of the above described brush constructions
will ordinarily be utilized for the flow of air
through the brush, such air being drawn in
through the ends of the adapter and thence
Similar circumferential vent grooves or passages
will also be desirably ‘employed with the ?rst de
scribed form .oimy improved brush, being pro
vided by the rounding of the lower edges of the
channel base as shown in Figs. 2 and 5.
passing‘ outwardly through the passageways g'just
referred to. It will be understood of course that
In the form illustrated, the unitary adapter or 65 instead of air‘a fluid suitableior cooling or other
supporting member for‘the helical brush base
isformed out of sheet metal, alternate portions
3|] of the side ‘walls of the annulus being extended
radially outwardly to engage the assembled brush
sections laterally while the intermediate por
tions 3| are benttransversely to form the ‘cylin
dricalseat on which said brush sections‘ are re
ceived and supported. The alternating radially
and‘. transversely extending, portions 35. and 3|
thus ‘provided’ on each side of the annular sup
wise assisting in the brushing action, as cleans
ing and cutting ‘fluids or abrasive bearing ?uids,
either‘ liquid or gaseous, may be supplied by‘ the
samemeans.
.
V
,
'
a It will be noted thatwhere, as in the ?rst and
second described forms of brush, ‘the brush sec
tions are assembled on‘a support or mount of
genera‘licylindrical form,~the depressedareas pros
vided in‘the‘ side walls of‘ the section‘ bases are
su?iciently closely spaced longitudinally: thereof
4. In a brush, the combination of a plurality
.of brush sections each comprising an annular
channelform back and brush material retained
so as to insure that one or more of_ such areas
will ‘be in communication with the transverse
grooves formed in the cylindrical face of such
support or mount; also that by properly round
ing the lower edges of the, channelform bases of
, therein, the sides of each such back being formed
into alternate depressed areas and intermediate
lands, such areas extending transversely the en
tire width of the side, and the lower edges of said
the brush sections longitudinally (or circumfer
entially) extending passages will be provided be
back being formed to provide longitudinally eX
tween adjacent sections through which air or
tending passages which communicate with such
other ?uid may ?ow from such grooves in the
support or mount to such depressed areas in the 10 depressed areas, and a support whereon such sec
tions are mounted, said support being formed to
side walls of the brush section bases as may not
provide ducts that extend transversely of such
coincide in location with such grooves. In other
sides and communicate with such passages.
words, the latter will communicate, in e?ect, with
5. In a rotary brush, the combination of a .plu
all of such depressed areas or transverse (or ra
dial) vents provided between the brush sections 15 rality of brush sections constituted of successive
convolutions of a helical channelform back hav
when assembled on the support or mount.
ing brush material retained therein, the sides of
While the term “annular channelform back”
such back being formed into alternate depressed
is speci?cally applicable to the brush base illus—
areas and intermediate lands, such depressed
trated in the ?rst described form of my improved
brush, this term may also be appropriately used 20 areas extending transversely the entire width of
the side, and a support whereon such sections
to designate successive convolutions of a helically
are mounted, said support being formed to pro
wound brush back as illustrated in the second
vide transverse ducts that communicate with such
form of such brush. It will accordingly be un
depressed areas in said backs.
derstood that the term in question is employed
6. A rotary brush section comprising an annu
25
in this broader connotation in the claims which
lar channelform brush back and brush material
follow. The term “brush section,” it will be un
retained therein, the sides of said back being
derstood is likewise generally used to designate
formed
into alternate depressed areas and inter
such annular, helically wound, or even a straight
mediate lands, such depressed areas extending
channelform brush back with brush material
the entire width of the side, and a
retained therein, where such section embodies the 30 transversely
disk supporting said back, said disk having its
improvements de?ned by such claims.
periphery recessed at points corresponding with
Other modes of applying the principle of my
such depressed areas.
invention may be employed instead of the one
7. A rotary brush section comprising an annu
explained, change being made as regards the
lar
channelform brush back and brush material
structure herein disclosed, provided the means
retained therein, the sides of said back being
stated by any of the following claims or the
formed into alternate depressed areas and inter
equivalent of such stated means be employed.
mediate lands, such depressed areas on one side
I therefore particularly point out and dis
being located approximately opposite to such
tinctly claim as my invention:
areas on the other side and such areas extending
1. In a brush, the combination of a support 40 transversely the entire width of the side, and a
having a grooved face, and laterally assembled
disk supporting said back, said disk having sub
brush sections mounted on said support-face,
each section comprising a channelform back
and brush material retained therein, the sides of
stantially the same transverse thickness as said
back and having its periphery recesssed at points
;. corresponding with such depressed areas.
8. A rotary brush section comprising an annu
lar channelform brush back and brush material
retained therein, a disk of ?ber board supporting
said back, and inwardly bent tongues on said base
and interlocked with said disk.
9. A rotary brush section comprising an annu
said backs being formed with alternate depressed
areas and intermediate lands, such depressed
areas extending transversely the entire width of
the side and being so spaced longitudinally of
said side that one or more thereof will communi
cate with the respective grooves in said support
iace, whatever the relative position of said back
thereon.
2. In a brush, the combination of a plurality
of brush sections each comprising an annular
channelform back and brush material retained Y c.
therein, the sides of each such back being formed
into alternate depressed areas and intermediate
lands, such areas extending transversely the en
tire width of the side, and a support whereon such
sections are mounted, said support being formed
C
to provide ducts that extend transversely of said
sections, said ducts opening to the exterior of
said support and also communicating with such
depressed areas in said backs.
3. In a rotary brush, the combination of a
plurality of brush sections each comprising an
annular channelform back and brush material
retained therein, the sides of each such back
being formed into alternate depressed areas'and
intermediate lands, such depressed areas extend
ing transversely the entire width of the side, and
a support whereon such sections are mounted,
said support being formed to provide transverse
ducts that communicate with such depressed
areas in said backs. .
‘
lar channelform brush back and brush material
retained therein, a disk supporting said back, said
disk comprising a central layer of indurated ?ber
board and facing layers of softer composition,
and inwardly bent tongues struck up from said
base and driven into the periphery of said central
disk.
10. In a rotary brush, the combination of a
plurality of sections, each comprising an annular
channelform back and brush material retained
therein, the sides of each such back being formed
into alternate depressed areas and intermediate
lands, such areas extending transversely the en
tire Width of the side, and disks supporting said
backs, respectively, such disks having their pe
ripheries formed with aligned recesses corre
spending with such depressed areas in said backs.
11. In a rotary brush, the combination of a
plurality ofsections, each comprising an annular
ohannelform back and brush material retained
therein, the sides of each such back being formed
into alternate depressed areas and intermediate
lands, such areas extending transversely the en
tire’ width of the side, and disks of substantially
2,409,309
the same thickness as said backs supporting the
same, respectively, such disks having their pe
ripheries formed with aligned transverse recesses
corresponding with such depressed areas in said
backs. ‘
12. In a rotary brush, the combination of a
plurality of sections, each comprising an annular
channelform back and brush material retained
therein, the sides of each such back being formed
into alternate depressed areas and intermediate 10
lands, such areas extending-transversely the en
tire width of the side, and disks of laterally com
pressible material and slightly greater thickness
than said backs supporting the same, respec
tively, such disks having their peripheries formed‘
with aligned recesses corresponding with such
depressed areas in said backs.
13. As a new article of manufacture, a, brush
section comprising a channelform back and brush
material retained therein, the sides of such back“ 20
being formed into alternate depressed areas and
intermediate lands, such areas extending trans
versely the entire width of the side, and the lower
edges of said back being formed to provide lon
10
such sections are assembled side by side passages
are provided which communicate with such cle
pressed areas.
{
15. As a new article of manufacture, a brush
section comprising a channelform back, 'a longi
tudinally extending retaining member within said
back, and re-doubled brush material ‘through
which said member passes, the side walls of said
back being formed into alternate depressed areas
and intermediate lands, such areas serving .to
clamp said retaining member and brush material
in place and also serving to provide passageways
between sections when assembled in juxtaposed
relation, and the lower edges of said back being
rounded, whereby when such sections are assem
bled side by side passages are provided which
communicate with such depressed areas;
16. As a new article of manufacture, an annu
lar brush section comprising a channelform back,
a longitudinally extending retaining member
within said back, and re-doubled brush material
through which said member passes, the side walls
of said back being forced into alternate depressed
areas and intermediate lands, such areas serving
gitudinally extending passages which communi
to clamp said retaining member and brush ma
cate with such depressed areas when said sec
terial in place and also serving to provide radial
tions are assembled side by side.
passageways between sections when assembled in
14. As a new article of manufacture, a brush >
juxtaposed relation, and the lower edges of said
section comprising a channelform back and brush
back being rounded, whereby when such sections
material retained therein, the sides of such back ‘ 30
are assembled side by side circumferential pas
being formed into alternate depressed areas and
intermediate lands, such areas extending trans
versely the entire width of the side, and the lower
edges of said back being rounded, whereby when
sages are provided which communicate with such
depressed areas.
RUBEN 0. PETERSON.
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