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Патент USA US2506935

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May 9, 1950
Filed Nov. 1, 194'!
2 Sheets-Sheet 1
May 9, 1950
2 Sheets-Sheet 2
Filed Nov. 1, 1947
.A . //
. IQ
Patented May 9, 1950
Floyd .13. Miner, Lombard, Ill.
Application November 1, 1947, Serial No. 783,504
8 Claims’.
inventicnirelates. to: a clutchdevi'ce. and
more-particularly tovthe‘r type which- is utilized to
its? axis of rotatiomshowing: it in the operative
Fig. 3» is: a similar. view;-v but: in its idle position.
Fig; 4i‘ is‘ a plan'view ‘illustrating,apra-ctical: ap
cooperate with a; flexible endless; member; such
as a‘- belt- orcable or the=1ike.
- plication' of: this; clutch‘ device, showing its: op
One- cff‘theiessential'fobiects oftlii's invention is
lie-provide- a; novel; compact‘andidurable' clutch
erative position
device arranged to‘ have clasping or driving en
gagement'with an; endless member and wherein
full lines.
Fig. 51 is a central: sectional; view thru" the
rotary axis of awmodi?'ed form' oithe clutch de
vice, showing it: in: the operativesposition
such engagement is readily releasable.
Another object of this-invention is» towprovide 10 Fig; 6-v is» a similarrsectionalivi'ew of this form,
but‘ in the idle: position.
such’ a clutch device" which-\ is rotary and‘; carries
Fig; 7 is an end viewiot-thisform;
the endless-member.‘ normall‘y'in a- driving rela
Inthe construction illustrated in'the drawings,
tion on" its outer or" peripheral; part"; but is- easily
in-both of: the‘: forms presented‘ therein, my novel
operabletosrelease the driving grasp onthe- mem
15 clutch devicev shown‘ as“ being-more particularly
arranged. for use iHiCOIlHGCtiOHLWit-h‘: an. endless
member which is substantially inithe' form of'a
Another- object of" this invention'is to provide
\f-shapedzbeltg, and. so: as‘ to'clasp'the- same, and
a-- clutch devicec'ontaining several coacting driv
function therewith during operation; but this-de
ingparts wherein theioperative or" clasping con
nection between such paits andI the~ engaged" end 203 vice is: likewise adapted-for.- use withiother-forms
of endless means;
lessmember is-v maintained under normal Opera
In the: formxof. construction as shown: in Figs.
tive- conditions; but7 is - readily released by'tilting
ber-a-nd" then: carry themember in an idleposi
1' to? v 4 the clutch: device 1 comprises two cooperat
one of said parts on the other by a simple-manip
ing; parts or members, It: and Hg, the; member
A- more' particular objectof'thisinvention is ‘ ‘ : Hl: being. mounted. around" an operating shaft
l2>,‘..wh'ereto*itt is secured‘ with its ‘hub: l3;by means
of. azset. screw‘ [4: and by‘key andv slot means [5,
so as to: rotate. therewith. The member, H is
connected; with: member-‘ Hl; so as to‘ be rotary
to provide such a clutch device by utilizing two
compan-icnmembers‘ which normally rotate to
gether with their axes". of rotation aline‘d and
clasping a. belt.‘ operative'ly: by. their outer 01" pe
ripheral ‘parts; and wherein" one‘ of‘ said members 30 therewith but to be yieldably and;tiltab1yjoined
thereto"; and thisis: conveniently accomplished by
is tiltable‘relative to" the other. torel‘ease the driv
the-use of bolts on elements It extending. thru
ing grasp‘ on the belt and at. the‘ same time to
openings provided.‘in;the~members Hi and H, as
enable the’ latter‘.v t0‘- movev into an idle; or inop
erative position.
A1 further" Object? of this‘ invention‘ is tov pro
vi'de Such‘ a clutch device wherein the driving
connection between the‘ clutch: and-the belt: is
normally. maintained; but» can be readily-"broken
manual operatiomand such driving connec
shownjn. the drawings... springs H being provided
357 on said; bolts for'yieldablfy: but: ?rmly retaining
tion. will? be‘ automatically resumed‘ as: soon as‘
said. breaking: operation. is: releasede
various:v other objects and: advan
tages are attained with‘ this: invention, as: will
become apparent; from the following: description,
takeniruconnection;with'the accompanyingtdraw- ‘
ings: wherein: the; invention, is‘ shown 1 in; a:- few' of
the pref-ended“ forms; in being’ evidentthat other
arrangements“. and? forms of“ construction. may be
resorted? to in: carrying out? the' objects- and pur
said members H1 and H" close together in the op
erative‘p‘ositioni. Securing nuts l8: on the ends. of
said bolts are adjustable thereon, and allow-for
adjustment‘ of". the: spring; tension;
Theendl'ess flexible means is‘ herein is shown
in the A formt Of". an, V-shaped; belt,_ and- the" clutch
members it and: H" arethereioreprovided- with
beveled portions» 20? andM ontheir outer or pe
ripheral parts, so arranged as to engage or clasp
thebelt Wnormally therebetweerr in driving re
lation. as; indicated in Fig. 2 of; the drawings.
'Ilhese members [Band H are substantial-lydisc
shaped-on their main- outer parts, around their
central hub- 13-; and thereby idling elements or
1- rollers22 can’ be conveniently mounted rotary on
poses of‘ this; invention.v
the bolts i6‘, OlltWEtI‘dtOfa said. hub, adapted to re
In‘. the drawings?
ceive thebelt its thereon’ in‘ the idling- or inop~
Fig; l is? an end; elevationa'll view of. the.- clutch
erative position. as shown in/Fig; of the draw
device, shown in the preferred: form of" con
Fig’.- 2>'- is- a. centraii sectional View? thereon on. 55. Thermeans. provided.v herein- for‘ moving the
clutch device from its operative to its inoperative
position includes a control shaft or stem 24 which
extends from an opening 25 provided centrally
in member | i, and which has an actuating or tilt
ing head 26 on its inner end, seated in a notch
or pocket 2'! provided at the end of hub i3, so
as to ?t snugly therein during operation of the
device, as shown in Fig. 2.
?anged member or idling pulley 52 mounted at the
outward side of clutch member 4|, being prefer
ably mounted rotary on a boss 53 provided on the
control shaft or stem 54 which has its inner end
secured centrally in member 4|.
It will appear evident that in this form, like in
the preceding form of the invention, the oper
ating shaft 42 with its clutch member 40 ?xed
thereon are positioned to have the axes of rota
It may be noted that in the driving or operating
position this control shaft or stem 24 is alined 10 tion alined with the axes of rotation of the control
shaft or stem 54 and the clutch member 4| ?xed
longitudinally with the operating shaft l2, so
on the stem, while in the operative position; and
that the two shafts along with the members _ l0
that by actuating and tilting said stem 54 the
and H thereon then have their axes of rotation
clutch member 4| may be tilted, and therewith
in alinement; while during this time the springs
|'| hold the beveled outer parts 2|! and 2| of said 15 the ?anged idler 52, into an inoperative position,
members ?rmly in clasping or operative engage
so as to facilitate and enable movement of the
belt from clutch member 4| onto the ?anged idler
52, as indicated in Fig. 6 of the drawings. Such
outwardly sliding release movement of the belt
is facilitated by the traveling belt and the rota
tion of member 4| while its belt-engaging portion
necessary to actuate the control stem 24 to a tilt
is tilted outwardly, as is well known in this art.
ing position, so that its head 26 is tilted in the
When the tilting force on the control stem is re
pocket 2'! and thereby forces the belt-clasping
leased, the springs 41 will automatically return
beveled part 2| of member || outwardly away
from the part 20 on member l8, and thereby re 25 the clutch parts and idler to the operative posi
tion, with the shafts and parts again in axial
leases the clasping engagement on the belt, as
alinernent, and the belt is then enabled to move
shown in Fig. 3. By this action the belt is en
back from the idler 52 onto member 4| in the op
abled to move onto the idlers or rollers 22, into
erative position.
its idle position, and let them rotate underneath
In either of these forms the readily manipu
the belt while the belt remains inoperative.
lated tilting action of the control stem tilts the
t may also be noted that herein, as soon as
associated controlled part of the clutch ( | |, 4|),
the tilting stress on the stem 24 is released, the
relative to the operating part thereof ( | 0, 4D);
springs I‘! will automatically force the beveled
and thereby enables and provides for the release
parts 2|! and 2| toward one another into clasping
35 iovement of the belt, from the clasped operative
or operative relation with the belt.
position to the inoperative position on the idler.
In Fig. 4 a practical application of this clutch
This construction, in either of its forms, thus
device is shown. Therein the clutch member In
provides a readily actuated and also durable and
with the operating shaft l2 are shown as the drive 1
inexpensive clutch mechanism of the pulley-type
member and the drive shaft, respectively, being
ment with the belt I9.
In order to move this clutch device from the
operative position, as seen in Fig. 2, to the inop
erative position, as seen in Fig. 3, it is merely 20
driven by a suitable power supplying means or (0 for coaction with ?exible endless means, as a belt
or the like, to have driving engagement therewith
motor 3|. The device is indicated as driving,
normally but to be easily releasable therefrom.
tln‘u the belt i9, a pulley 32 adapted to actuate,
I claim:
thru its shaft 33, any suitable mechanism housed
1. In a clutch device constructed for carrying
in the casing 34. A link 35 has one end connected
to the outer end of the stem 24, preferably so as to 45 endless ?exible means thereon, the improvement
which comprises a driving clutch part and a
allow for rotation of the stem therein, while a
driven clutch part which normally coact to have
control lever 36 is indicated herein as mounted on
driving engagement with the ?exible means dur
the casing 34, whereby to actuate the link and tilt
ing operation of the device, means mounting said
the stem to move the clutch device into the inop
50 parts to have their axes of rotation alined while
erative position.
ccacting with the ?exible means, idling means on
It will be apparent that such driving arrange
said device for receiving the ?exible means while
ment may likewise be reversed, to have the drive
the latter and the parts are out of driving rela
shaft or any suitable driving means connected to
tion, and means operable for tilting one of said
the pulley 32; while this clutch device is then con
nected with some driven means in place of the 55 clutch parts out of axial alinement with the other
part, to transfer said ?exible means from its driv
driving motor 3|, whereby the shaft I2 and the
ing position on said parts to said idling means.
clutch member ID then become the driven mem
2. In a clutch device of the type described, a
‘pair of rotary companion members and. means
‘This invention is readily adapted to be pro
vided in various forms and modi?cations, and in 60 for mounting them to have their axes of rotation
alined and to have driving engagement with end
Figs. 5, 6 and '7 one such modi?ed form is shown.
less ?exible means during operation of the de
This form, like the preceding one,‘ comprises an
vice, idling means cooperating with said mem
operating part or member 40 and the companion
bers, and control means operable for tilting one
part 4|. Part 40 herein also has its hub 43 se
cured by a set screw 44 to the operating shaft 42, 65 of said members relative to the other member to
release the driving connection thereof with the
like in the above described form. Bolts 45 ex
?exible means and facilitate movement of the
tend thru openings in the disc-like part of mem
latter from its operative position onto said idling
ber 48 and extend into the companion member 4|,
means, the construction being arranged and po
but the latter is substantially pulley-shaped and
sitioned so that when the control means is re
contains both beveled peripheral or outer portions
leased said flexible means will automatically re
4|’ for receiving the V-shaped belt therebetween
turn from the idling means to the operative po
during operation of the device. Springs 41 on
sition on said members.
bolts 45 also serve to urge the clutch members
3. In a device of the type described, a pair of
normally into their operative position. However,
rotary members and means for mounting them
the idling means herein is in the shape of a
with their axes of rotation alined and adapted to
grasp a belt operably between their peripheral
portions, idling means carried by one Of said
members, and means operable for tilting one of
the members on the other and separate their belt
grasping portions, whereby to release their grasp
substantially pulley-shaped arranged to carry a
belt in driving engagement thereon, idling means
on the belt and at the same time facilitate its
on the side of the latter member, and means
pair of cooperating members and means for
mounting them to rotate together, means nor
mally retaining them close together with their
axes of rotation alined, one of said members being
movement from said grasping portions into its
operable to tilt said latter member relative to the
inoperative position on the idling means.
other member and thereby facilitate movement
4. In a device of the type described, a pair of 10 of the belt from its driving position to an in
substantially disc-like members and a shaft con
nected with each member and providing an axis
of rotation for the member, elements operably
active position on said idling means.
7. The subject matter included in claim 6, and
wherein each of said members has a shaft se
connecting said members for normally holding
cured thereto to provide its axis of rotation, while
them yieldably together with their axes of rota 15 one of the shafts provides part of the control
tion alined and their outer portions adapted to
means operated in tilting said shaft and its con
grasp a belt operatively therebetween, idling
nected member relative to the other member and
means mounted rotatively on said elements to re
shaft to the inoperative position.
ceive the belt in its inoperative position, and con
trol means including one of said shafts arranged
for tilting this shaft and its connected member
relative to the other member, whereby to release
the grasping engagement of said members with
said belt and facilitate its movement from their
outer portions onto the idling means.
8. In a clutch device arranged and constructed
to carry a belt thereon, the improvement which
comprises a pair of rotary members mounted to
have their axes of rotation in alinement during
operation of the device, idling means for receiv
ing and supporting the belt in the inoperative
5. In a device of the class described, a pair of
position of the device, and control means in
cluding a tiltable shaft connected to one of said
substantially disc-like members, a pair of shafts
pair of rotary members whereby this member is
one connected with each of said members and
tilted on the other member to induce movement
providing an axis of rotation therefor, elements
of the belt from its operative to its inoperative
extending thru said members and having resilient 30 position.
means thereon to normally retain said members
in the operative position and their axes of rota
tion alined, with the outer portions of said mem
bers arranged to grasp a belt therebetween, idling
The following references are of record in the
rollers mounted on said elements between said 35 ?le of this patent:
members, and means including one of said shafts
operable for tilting this shaft and its connected
member relative to the other shaft and mem
ber, whereby to release the grasping engagement
of said members with the belt and enable the 4 O
latter to move from said outer grasping portions
onto said idling rollers.
6. In a clutch device of the type described, a
Bailey ___________ __ Oct. 1,
Aldrich __________ __ Apr. 30,
O'Brien _________ __ Nov. 14,
Thomas _________ __ Nov. 14,
Livingston _______ _- July 30,
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