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Патент USA US2097631

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Nov. 2, 1937.
2,097,631
A. MAD‘LE
POWER ‘TRANSM‘I S S ION iMECHANI SM
Fil‘ed Dec. 9, 1932
4 Sheets-Sheet 1
‘
INVENTORI
_ Nam Mad \ e
ATTORNEY
Nov. 2, 19,37.
‘
‘
“
‘
1 2,097,631‘
“A. MADLE
POWER TRANSMISSION
‘
MECHANISM
Filed Dec. 9, 1932
‘
4 Sheets-Sheet 2
W“,
‘
‘
‘
_INVENTORI
\oun Madle
BY
wax/L
ATTORNEY
‘
Nov. 2, ‘1937.
' " A. MADLE
2,097,631
POWER T‘RANSMISSiQN‘MECHANISM
Fil‘ed‘ Dec. 9,1932 ‘
4 Sheets-Sheet
\\
INVENTOR
I
Main MaoHe
/Nov. 2, 1937,
‘2,097,631 ‘
'A. MADLE
" POWER TRANSMISSION MECHANISM
“4 Sheets-Sheet 4
‘ Filed Dec. 9; 1932
@S
my
b?
mm
INVENTOR
Emir/10mg’
‘ ATTORNEY ‘ f
.
‘ ‘
Patented Nov. 2,‘ 1937 p
2,097,631
| j UNITED
i
, “ ‘p STATES
_ 312,097,631
‘ j-PAT
“ ‘p ‘ ENTQ;OFFICE
p
‘h
1‘
POWER TRANSMISSION MECHANISM
'
Alain
“Operating
males“
‘Corporation,
York, N.New
Y.', York,‘
assignorito
N. ‘1., Erban
a cor-p
‘poration of New‘ York
_
M
_
p,
‘a
‘
‘
9, 1932, Serial News; <
‘ Application > December
,
lsioiaims.
‘
(c1.
ofthe
‘ma-20o)‘
adhesive‘ “‘contact'when
"
M shocks-originate
a
‘ This invention‘ relates generally to power trans
at such-opposite end>of the system by making
‘ ‘@mission mechanisms‘ of the ‘typerequiringa con-V specialiprovision thereagainst asv by employingan
,‘tinuous, adhesive operative connection, between
arrangement which will supplement the-required
the driving and driven members and more par
pressure developed by a torque, with an excess-of '
ticularly to transmissions ofgthis ‘type where the ‘pressure to counteract the shock, such means will
speed ratio or the leverage between ‘input and fall short of the desiredraim in that, ‘as the in
‘output shaft is continuously‘ variable, and'I have creased rtorque or the shockistransmitted ?rst
' therefore herein disclosed my ‘invention as em
bodied in an adhesive system comprising races
to‘ the points of adhesive contact and then‘
through these points to the ‘torque-loading device
l0‘ and rolling bodies.v It will be ‘understood, how .to generate the required‘pressure,‘ which is then ‘
ever, that asto features‘ ofmy invention capable transmitted back to the points of contact, the
of more general application, my invention is not . time lapse (hereinafter referred ,to as‘ the ‘time
to be so restricted, unless the language of the
lag) between the application of ashock to the 15
r points of'contact and‘ the compensation therefor‘
A power transmissionemploying adhesive con— at such points, .nomatter how short will be sui?
-_claims speci?cally call therefor.
is
'
‘
‘
'
tact must employ some arrangement for applying ‘‘cient to break vthe driving: connection, if the
at the points of contacta pressurecorrectly pro
shock is‘ sufficiently sudden. Furthermore, the
portioned ‘to the load. ‘In arrangements to which employment of such pressure‘ applying means, to
this invention has‘ reference, such pressure is in supplement the torque-loading device, ‘for the
20 the form ofan axial componentfdev‘eloped from ‘purposessuggested, entails the application at all
the torque or circumferential force by means of
a converting device positioned in‘ the line of‘
times to the points?of adhesive contact, of a
pressure in excess- of j thatrequired, an, excess
‘power transmission and to be hereafter referred 1,,which increases as‘provision is'made for com
to as “a torque-loading‘ device.” ' it
‘ ‘
pensating forj shocks of increasedgradient’s. it “
Where ; the torque-loading device is , positioned
,In ‘an application‘copending herewith, I show,‘
.25
,in‘ the line ‘of transmissionof ‘the input power" in addition to the employment of a torque-load;
to the adhesive system, such adevice can be ar
mg device positionedto one side, i.v e., the input
ranged as to give thecorrect pressures without side-10f the points of adhesivecontact for caus
substantial time lag for all torque changes from ing the system to belimmedi‘ately responsive‘ to
torque-changes ‘originating “to that side, an ar
, 5m, the input endgfor a ?xed ratio .of ‘transmission.
25
Sincehowever, the pressures developedat chang
rangement in the form of'a secondltorque-load- ‘
ing ratios of transmission remain constant for , ing‘ device, at‘the otherside, or output side‘of the
a given input torque, ,whereas,1the required pres
system responsive to torque changes originating
sures vary with‘ changing‘ ratios, this, manner of to that ‘side, so-that from ‘whicheve'rside the 35
35 association vof a torque-‘loading device for aivar
Tchangeinpower?ow incident to torque change
iable transmission, to provide su?icient pressure originatesthe arrangement‘ responsive to such
for all ratios will apply anover-l'oad at all ratios,
‘ except that at whichwthe required pressure equals
the applied‘ pressure.
‘
q; -
change ‘for compensating therefor, willbe on that
sidefor such purpose.
,
,
,,
.
t:
‘a
a While ‘the additional torque-loading , device in
i
140. V .In addition, such an ‘arrangement will be eifec~ the output side will function {properly for a pre
tive within the limits above set forth‘only‘where determined transmissionlratio for which it is de
the torque changes, impacts ‘or. shocks are trans vised, it willof necessity provide an overload for
mitted to the adhesive system ‘through theytorque all variations from such predetermined ratio, be 45
loading device. It will not be effective ‘for shocks cause, whereas the ‘pressures, will increase in re‘
145 or torque changes originating‘eisewhereandnot ‘verse ratio tothe speed changes, such is not the
so transmitted, because such,‘ last mentioned
changes being; delivered ?rst directly to the points
‘ of adhesive contact, willbreak the adhesive con-'
tact of the system and will not be transmitted to‘
‘ a” the torque-loading device‘ , for , compensation ‘
‘therefor by it and in the absence [of a special
case ,of ‘the pressure requirements, ‘of, the system.
Qne of the objects of my invention is therefore
‘the provision of an arrangement whereby the
rpressurehadeveloped ‘by, a ‘torque-loading device
‘be considerably in excess of, the changing pres
provision to prevent such an-occurrence, the ad- , sure requirements ‘of-speed ratio changes.
.‘
hesive contact will remain broken until restored .
Another objector my invention is the provision
from the other side.
v55
i’
,
_
h
.
,
.l
‘
Where I have attempted to avoid, thebreaking
50
will at an times be suf?cient and yet at: no time -
"of an arrangement whereby a single torque-load
2 .
9,097,681
ing device can be so devised and associated that
it will function to develop and apply without a
time‘ lag, the correct pressures for all torque
changes incident to power flow originating at any
point in the system.
In the transmission system herein disclosed,
the ?ow of power to the adhesive system is along
one line of transmission from one end and along
another line of transmission to the system from
10 the other end. Such a system as a whole can be
exempli?cation of one of the many arrangements
for attaining my objects in the specific embodi
ment illustrated in the drawings. For example,
the transmission system might have all of its
three members free to rotate, one of the members
rotating at a speed which is the resultant of the
other two. Or the transmission might be a com
pound transmission comprising a plurality of
transmissions, either in series or in parallel-or
viewed as a leverage system of the ?rst class partly in series and partly in parallel, and in this 10
case there may be more than one fulcrum, one of
which has a fulcrum about which the entire sys
‘tem pivots and at which point all the torques which can be selected as the main fulcrum and
throughout the system react so as to give at this the others, as subsidiary fulcrums.
15 fulcrum point a torque reaction which is the re
In addition to the attainment of all of the ob
sultant of all the torques present incident to the jectives above set forth, my invention attains the
further objectives in that the manner of asso
I power ?ow along the different lines of transmis
sion to the system. The torque reaction at such ciation of the torque-loading member with the
fulcrum point therefore will at all times be roller carriage or cage as herein set forth when
20
truly indicative of all the torques existing
throughout the leverage system presented by
analyzed permits this torque-loading device to
act additionally as a resilient buffer‘ to reduce 20
such transmission and such torque reaction at the intensity and gradient of impacts to the sys
the fulcrum ‘will accurately correspond in its tem and might be used wholly for this purpose
and apart from the purposes already set forth
changes
to the changes of all the torques. above.
25 throughout the system.
,
.
In
a
system
of
races
and
rollers
devised
for
I attain the general objects of my invention by
25
so associating a torque-loading member as to speed variation, the attainment of 'such variation
cause it to respond to the torque reaction present by a simultaneous angling control of all the roll
in the system.
'
ers for rolling tilting purposes, introduces a high
30
element of shift resistance and it is one of the
In the embodiment herein speci?cally dis
closed, the adhesive system is shown as of the objects of my invention to provide an arrange 30
type in- which the races are the driving and ment whereby the tilting of all of the rollers
driven members of the system, and the rolling is accomplished merely by the control of one
bodies serve as a transmission means between the
two, and are shown as associated together by
form a unitary roller as
of them, the remaining rollers being shifted
through the cooperation vof the rotating races
and the controlled roller.
This arrangement for controlling only one of
the rollers is of particular importance in con
nection with the reaction torque-loading be
the roller carrier or cage can be assumed to be
40
the fulcrum about which the entire system pivots cause additionally it eliminates as a variant
factor in the control of the torque-loading by 40
and the reactions of the torques upon the car
rier can be accepted as being the‘ resultant of means of the rotation of thecan'iage, all factors
all of such torques or torque changes and as except the specific means for angling the single
responding to all torque changes throughout the control roller.
45
My new arrangement for tilting the rollers by
It is therefore a further object of my invention the control of a single roller will therefore have 45
one aspect of general utility in systems of this
to so devise and associate a torque-loading de
vice that it will develop an axial component that character generally, and will have a second aspect
will-correspond to reaction torques existing in of speci?c utility in connection with reaction
this carriage, and that will- vary in, proportion
-to the ‘changes in such reaction torques, and
For the attainmentv of these objects and such 50
this I attain in the illustrated embodiment by other objects as may hereinafter appear or be
sembly. Therefore, for purposes of treatment
of this particular system as a leverage system,
system.
-
i
torque-loading.
associating the torque-loading device directly
with the roller system, ‘and more particularly in
55
so associating it‘ that the torque-loading device
will convert the reaction torques present in the
roller carrier, into an axial componentwhich
will therefore always be properly proportioned to
therefore always in ac
cordance with'the requirements of all of the
torques throughout the whole system.
'_ In the speci?c construction disclosed in the
drawings, I accomplish this by so connecting the
65 roller carrier to the torque-loading device that
the tendency of any power ?ow to rotate the car
riage will manifest itself in the operation of the
torque-loading device, and for this purpose, I
support my carriage for rotation with reference
70 to the axis of transmission only, however, within
the limits permitted by the torque-loading device,
and only for the purpose of operation of the
torque-loading device.
'
'
- It will, of course, be understood that the char-.
acter of torque-loading device and its manner of
75 association herein disclosed is merely by way of
'
v
'
pointed out, I have illustrated embodiments of
my invention in the drawings, wherein:
Figure 1 is a longitudinal section through the
main axis of the transmission;
Figure 2 is a section taken on line 2-2 of Fig
ure 1;
Figure 3 is a front elevational view of a detail;
Figure 4 is a transverse section taken on line
4-4 of Figure 1 looking in the direction of the 60
arrow;
Figure 5 shows a detail;
Figure 6 is a section taken on line 6-6 of Fig
ure 1;
'
Figure 7 is a section taken on line 1-1 of Fig 65
ure 1;
Figure 8 is a cross section through the roller
carriage system of
invention;
another embodiment of my
Figure 9 is a cross section of a detail taken on 70
line 9-9 of Figure 8;
Figure 10 is a cross section of a detail taken
on line Ill-l0 of Figure 8;
Figure 11 is a cross-section of a detail taken
on line ll-ll of Figure 8;
75
awash
v
“‘
Figure 13“ shows the detail of
“ “‘
are received in grooves I‘G’formed in‘ the race 1
“
lzewith‘
ring
‘ Figure'15 is a cross'section‘talrenonlinezl5é~li , ‘
-
‘
e
ter‘roller and the‘controlling‘ifrz‘ime;l ‘
rollers l3. The race ring ‘I l' is connected to the
driven “shaft 0'; preferably in the. manner to be
hereinafter set forth, 'to‘ complete the‘driving
‘ Figure‘ 16 is a side elevati anal view of ‘the ‘mas
‘i
connection between the input and output ends
'
‘10 : Figure 1'!‘ is a cross-section of ‘a "detail talren on
of the, transmission system;
‘
‘
f
10
‘
1
An ‘adhesive ‘system ‘of the character herein
Before proceeding.‘ to: describe“ “my, improve-‘
vments, I will premise‘ that-in the embodiment- il
‘of ‘adhesive contact between the races andthe
lustrated in Figure 1 of the drawings my ‘inven
tion is ‘shown applied 1‘ to a‘ transmission ‘system
adhesive driving connection, and this ‘required
line ll-i-llof Figu‘re‘B.
15
'
ring‘ ‘II to the race ring ‘ II’ by means of‘ the
it t Figure 14 is a‘perspective of‘aidet‘ail; ’
‘a
II.~
i i The torque is then ‘transmitted [from] the race
di?erent position of ‘the parts; ] 1
oLFlgure8;
3
iection or- projections 05 carried by the shaft C
Figure 12 is‘across-section of‘a‘detail‘talreu
on line‘l3—l2 oftFigure?;
t
,J‘?
‘--‘
illustrated ‘requires the application to the ‘points
rollers, of the required pressure to‘establishthe
15
comprising races“! l ‘and I~l"1each provided with ‘ pressure will vary with ‘the torqueiand‘where‘ the
speed ratio of .the systerneis variable, will also
a toric face 12 or l2’, ‘(hereinafter referred to as
races)‘ positioned‘ in‘ ‘symmetrically opposedfrela
tion,rand rolling bodies shown ‘asinthe form of
20, rollers l3 received between them, and each‘ pro
vided with an annular‘contact,‘surface Hy.‘ a >‘
3
vary‘ with the change‘ in‘ the‘fratios.
‘
i
‘ 1 I’ will‘now ‘describe my arrangement for devel
‘ oping and applying to the points "of adhesive‘co‘n 29
tact‘ an axial component which is sufficient. for 3
the requirements and for ‘compensating for the‘,
‘ My invention involvesia) ' a-new and improved ‘ ,
arrangement whereby pressure‘ appliedatthe
1 points of adhesive'contact is always su?icie‘nt ‘for
25 the requirements regardless of‘thelpoint of origin
of. the torques ori torque changes‘ or of the‘ gradi~
ents'of the torque changes, and yet generally not
substantially in‘ excess of such requirements and
‘changes in elastic deformations, in‘ thetran‘smi‘s
sion system due‘ to changes‘ in'pressures in the
1 system1 which occur‘withchanges ir‘rl‘oad‘ or‘in \
the speed ratio, and before describing this new
arrangement,‘ I will premise that-'whiie-it con
templates'that for‘transmitting motion, the races
shall be‘the‘moving‘rnem‘bers and the roller sys
tei‘n shall be stationary, yet it also contemplates
(b) a new and improved system‘for ‘effecting the
‘tilting of the rollers for’ speed ratio chan‘gepun
poses:
a
,
, that‘ the roller system shall be capable of a suf
While I have illustrated mime of ‘my embodi-x ‘ ‘?cient oscillation for‘ compensating for‘ the afore-f
merits the association ‘of my‘ improvedarrange
mentioned‘ elastic‘ deformations in themanner
ment (a) above with a system‘of races and roll;
shortly to ‘beepointed out.‘
‘ingcbodie‘sin which the rollers are tilted for speed
Y
,
‘
,
,
The‘ rollers'l3 are supported in jacarriage 20
which takes the form of ‘a spidenand the rollers
ratio change purposes,‘ it‘ will be understood that
this has been done becausexofthe, fact that‘it is‘ form‘ with this spider‘ or‘carriage a unitary as
in such relationship that feature (0) ‘serves its ‘semblylw‘hich will hereinafter be referred to as
function most peculiarly; so also ‘I have‘ illustrat ‘the roller system.» The spider 20 is coupled to
a ‘disc “in any preferred ‘or desired manner,‘
40 ed in another embodiment,‘1the association of my
new arrangement (be) ‘for, tilting“ the rollers with as‘ for example, by the: arrangement shown in
Figures 1 ‘and 6‘ wherein ianiannulus, 22 "secured
mynew arrangement (a) for ‘pressure develop
ing application," because ‘the former‘ serves“ its , to the carriage as for example‘iby pins" 23 has ‘pro
function most advantageously and peculiarly ‘int jecting rearwardly therefromythe‘engaging ele-,
ments‘ 24 shown“ in the form of rounded ‘knobs
, such association.‘ “It ‘will, however,‘ be under
or‘ ends received in the‘ axial grooves‘ 25‘ formed
stood thatmy invention is not necessarily‘ lim
> > ‘
,ited to the incorporationxof‘ both ‘featuresinto' on the rim of the‘ disc 2|.
a ‘unitary mechanism or to ‘the‘employment of 1 ‘The spiderwor carriag'ed? is mounted‘ on one
the former in a transmissionin which‘the speed - - of *thegdriving' shafts for free rotation thereabout
so
ratio'can be changed.‘
’
1
‘
1 of the drawings, I ‘show ;
at the left vairotating member 0, and at‘the
~ Uponxviewing Figure
in'any‘ preferred or desired "manner as forexam-e 50"
ple by the bearing 26.‘
i
1
' e
‘
serve as‘ the powerinput or driving member, in
The disc“ forms an elementof‘» my pressure
developing“ system which has hereinbefore been
‘referred to ‘as the torque-loading device and,‘
‘whichevent the other will serve as the power out
‘which “I will‘now describe.
‘ ‘right a rotating member C’, either of‘ which may
put, orydriven member; audit will "be under
it stood, as this description is read, that it is im-‘‘
"
‘
‘
‘ Upon viewing Figures 1 and 4 of the drawings,
:itwill be observed that this torque-loading de
material which is the drivendmembe‘r, and which
vice ‘comprises the disc 33 and the‘ aforemene
ing member for one moment, ‘andth‘e other the
3l received therebetween‘.‘ The-discs 2|‘ and‘ 39
is the, driving member, and one‘, can be the‘ driv- , tioned disc 2| and rolling bodies such?as balls‘
60‘
driving member at ‘another’ moment. In ‘fact,
as will appear, it is an important feature of my ‘
‘invention that my structure is‘so ‘devised.
‘
‘ However, for purposes of convenience of‘de
are each provided on their. adjacent faces‘ with‘
complementary grooves of the‘ charactervshowne
more fully in‘ Figure 4 of the drawings. Each
groove is so shaped as to provide inclined sur-'
‘scription herein, the‘ rotatingYmember C will be faces 32 and 33 along the pitch line to opposite
assumed to be the power input member, that‘ is, sides of each ‘ball and‘where for‘example‘ three
the driving member, and the member C’ "will be‘ balls are employed as illustrated in Figure'4 then
assumed to be the power output member, or‘ they there “will be three such ‘sets ‘I of inclined sur
faces for the ‘groove in each member. Each of th
driven member, although ‘it will again beempha
1
70 sized that this ‘is only for the‘purpose of con-‘ ‘ inclined surfaces is part ofga helix.’
venience of reference.‘
- ‘
"The ,disc 30 is held against rotation as for
I ‘The torque is‘ transmitted‘fromY the driving‘ example, by means of the element 5! carried by
shaft C to the‘ racerin'giill ‘in’any preferredor the ‘frame and ‘engaging in a slot 52 in the pe-,
riphe‘ry of this disc.
desired mannei?as for example, by the connec
75 tion shown‘in Figures‘, Land awher'einia proi- ‘ ,‘A‘ torque-loading member of the character‘
4
2,097,031
herein set forth connected with the roller sys
tem generally in the manner set forth will re
spond to torques applied to the carriage of the
roller system and therefore can be expressed as
10
the disc 30 form the other parts, is mounted for
self-alignment by the engagement of the pro
jecting ends 49 of a pin, transverse through the
shaft C‘, in the elongated s1ots50 formed oppo
the reaction of the forces present in the system, sitely on the bore of the race II', and this as 5
and therefore my new arrangement can be de
sembly is also mounted for universal alignment
scribed as a torque-loading device responsive to about the shaft C’ by means of spherical bearing
the reaction of all the torques present in the surfaces46 and 41, and'the spherical bearing
system.
.
I
surfaces 42, 43, 46 ‘and 41 are generated about the
The axial component developed by this torque
loading device is transmitted to‘ the points of ad
hesive contact of thevsystem through the races
H by means of the thrust bearing system shown
generally at 31.
i
For establishing an initial driving connection
between the members of the system of races and
rolling bodies, Ishow at 40 the employment of
springs for thispurpose, operating in the man
, nor that will beset‘ forth more fully hereinafter.
.With the springs functioning as set forthwin
the preceding paragraph, the application of a
' torque at either end of the system, forexample,
at the input end C will, as a, result of the ad
hesive relationship between the races and the
25 rolling bodies, immediately set up a reaction in
‘the roller system which will manifest itself in the
developmentthrough the disc 2| of a pressure
- which will be applied as aforementionedvto» the
same point indicated at 48, which point is in 10
tended to be the resultant of the points of con
tact of the races and rolling bodies and I have
attempted to show this by means of the dotted
lines and the arrows.
.
In order that the universal adjustment of the 15
system may be attained without interference, the
engaging relationships such as shown in l5, IS
in Figure 5, and 24 and 25 in Figure 6 and at 5|
and 52 in Figure 1, are all by means of engaging
surfaces properly designed for this purpose.
20
It has already been set forth that the reaction
produced by the torques existing in. the system
upon the carriage are relied upon to set vup the
pressures and that the movement‘ of the carriage
is relied upon to set up compensations for the 25
changes in the elastic deformations in the sys
tem and the latter feature becomes of particular
importance in connection with a system of this
system of races and rolling bodies, and with
character in which the speed ratio is changed.
a pressure sufficient: for changing requirements.
These’ changing pressures incident to changes in
the load and’ alsovlincidentv to changes in the
It is for this reason that I have illustrated at
the bottom of Figure 1 an arrangement wherein
the speed ratio is varied by a tilting of the rollers
and before describing the details of my arrange
30 changing loads, this reaction will always give
speed ratios, where the speed ratio is changed,
35 will give rise to elastic deformations in the mem
bers of the system of races and rolling bodies, and
these elastic deformations willlbe compensated
for by a displacement of the roller system func
tioning for compensating purposes through the
torque-loading device, so that the roller system
can be picturedas oscillating angularly with in
creases and decreases of elastic deformations in
cident to increases and decreases of pressure re
quirements, and as a feature of my invention,
I have supported the carriage to permit of such
oscillations and so' connected it with the torque
loading devices ‘as to cause these oscillations to
provide proper compensation.
_
ment for attaining this variation, I will premise
that (1) the variation is attained by change of 35
leverage between the elements of the system; (2)
the change in leverage is. attained by the tilting
of the rollers, andi(3) the tilting of the rollers
is attained first by an. angling of" the rollers about
their points of adhesive contact with the races 40
and the action of the racesrupon the rollers as
long as they-remain angled, to give them a rolling
movement to successively ‘new positions of tilt
until the desired change in tilt has been reached.
For this purpose, the‘ rolling bodies take the 45
forms of rollers l3, the contacting surfaces of
which are generated speci?cally to permit these
rollers to maintain a proper adhesive contact
A. system of this character depending as it does .with the toric surfaces of the races as they are
'50 upon the application of pressure to a-plurality of
tilted and are, therefore, of ‘a transverse radius
points of adhesive contact will function e?ioiently not in excess of, and preferably smaller than, the 50
only to the extent to which the pressures are dis
transverse curvature of the toric faces l2 and i2’,
tributed in balanced relation and I will now de-, and the centers of the rollers are shown as in the
scribe my arrangement for accomplishing this. .
locus or path of a circle that generates these toric
55
This arrangement generally can be described
55
as making races and rolling bodies, and the asso—
Upon viewing Figures 1 and 2. of they drawings,
ciated parts, self-aligning as an entirety and fur
it will be observed that rollers l3 are each car
surfaces.
thermore as providing for this self-alignment
about a point which might be referred to as the
60 resultant of all the points of adhesive contact be
tween the races and rolling bodies, and furthere
vmoreproviding that the parts of the system are
each'made selféaligning about‘its point. I will
now describe the arrangement whereby this is
65
done.
'
,
'
The race ring H is supported for free move
ment with reference to the shaft C’ and isheld
to a spherical alignment by means of the contact
ing spherical surfaces 42, 433 and the thrust of
70 this race ring is taken up by the angular thrust
bearing tilt- These spherical surfaces 42 and 43
not only serve to carry race ring ii‘ for self
alignment but also to self-align the thrust. The
race ring H’ which forms part of the assembly
75 of which the thrust bearing 31, the disc 2| and
‘
.
ried in a frame 82 mounted for pivotal move
ment about an axis diametrical of the roller and
perpendicular to the axis. through the point of‘ 60
adhesive contact of each roller with the races,
as bymeans of pins 85 about whichthe frame
82 swivels.
The pins in turn are mounted in
ears 86, (see Figure ,2)- ?xedly related to and car
ried by the cage20.
.
>
v '
c
To impose upon the rollers the aforementioned
angling. movement so as to positioneach roller
angularly of its normal path of travel, and thus
permit the rotation of the races to translate the
rollers ‘to successively new positions as theraces 70
rotate, I employ an arrangement which com
prises. generally a universal support for each
roller and means controlled bythe tilting of the
frames 82 to cause each roller to angle in that
direction determined by the direction of tilting of 75
‘
1"52,097,681
‘
members‘ for each‘ roller. Upon any angling of
the frame, and in Figures 1,2 and‘ 3, 'this‘iu‘ni- ‘ the
frame 82, ‘the roller will‘be tilted through
versal support‘ for each “ roller is‘ attained" by ‘ members
‘89~‘positioned to opposite sides ‘thereof ‘
mounting it upon a‘self-aligningbearing 81 car-“
"and ‘acting ‘together toanglelthe roller in‘ the ‘
‘ ‘ ried by the pin 88 which in turnis supported from
‘same direction and to‘ the ‘same extent. ‘
‘
smtheframe 8,2; In thismannenthe roller, l3‘can‘ ‘ ' ‘ If the frame 82 "is moved ‘singularly while the
assume any position relatively‘ tothe‘frame within ‘ ‘ roller li‘ijisi‘moving in the‘ direction opposite to
theilimits?xed bythedesign.‘
>
‘ ~ ‘
‘that ‘shown by the-arrowin Figure‘ 3 the turn
{In Figures 2 and 3 isshown the? arrangement ing‘
movement‘of the roller will ‘occur exactly
»»by which ‘an angling movement is given‘ to the‘ as abovei‘set
forth and in ‘a direction‘dependent‘
This ‘arrangement- com:
‘
‘ 10,1‘O11ers by the frames'82.
prises members l89zadjacent the rollers.“ vThese “ ‘upon‘th‘e direction of‘the‘ angular movement of
framellilzj;
‘
l
s
t V ‘
‘members are mountedtintermediate ‘their'li‘ends “theUpon
'a ‘continued! ‘tilting offthe ~ frame 182
about the pins 88 ‘of the rollers,“ each member be
‘by'the ‘disct‘ljfthe‘ members}! will move» the
‘ ‘: ‘ing provided‘ at its terminalr'endslwith "the in--‘ "rollerja‘n'gulariy' to increasing extents. ‘ Due to
15 ‘wardly directed projections Silan‘d '90" so“»ar-‘ this ‘change-"in ‘its ‘angular position, the‘ roller
ranged as‘ to be. closelyladjacentl to theannular
‘ iridge formed on the facevof each rollers. While“ ‘will roll diagonally‘across the faceof the races‘
The controlling member 91 '
themembers 89 are freeto-swing aboutthepinsj to‘ changeits‘ tilt.‘forth,~until
‘a tilt‘ of; the rollers]
88 this swinging movement is limited to ainove ‘is-niovedasset
reached to give thelvd?simd
‘
Speedlchange;
v t
20: ment of these members from their full line" posi
When the controlling" disc‘ stops‘ moving,‘ how-p
‘ tion shown in Figure 3 tolthe ‘dotted linei‘position
will ‘continue to move diagonal
‘3 shown in this ?gure‘, and‘ this I- accomplish-by the ‘ ‘ever, the rollers“
such ‘movement-‘will move away from
‘ ‘
provisionof pins 9! ‘ carried bythe frames.“ and “
l presented ‘in the pathof swingingrmove‘me‘nt of 1;‘ thatl'p‘ress‘ure-applying' projection "90 or ‘90’ l of 25
v
i
7
~
‘ ~ [been member’789w'lrwl‘iich7has" been“ causing 1W0
the members 89.‘ ‘
[Ifhe direction of ‘movement ‘of "the “frames 82 i ‘ angle, and ‘will? move into contact with‘ the ' pres
‘ about-‘the axis of thepins‘85iwilltthereforede4 ’ sure=applying projections on the members to‘ the
other s‘ide'of' thefpins 88-1and in suchlmovement
termine which projectionallll or 905 ‘of ‘.ealchlmem
- her 89 is moved into contact'withitheroller‘; and i‘ “will act in connection with theprojections ‘on 30
the samemanner‘ as-‘it did ‘in con-"
@30 ‘the direction ofthe rolling movement‘of the 'roll- ‘v that‘side,‘~in
‘
erl will ‘determine which “ofthe‘ two‘ ‘positions nection -with“thei“initiation of ‘the angling mdve~
t'o?cause a ‘restoration of the rollers ‘to ‘a
shown in Figure 3“ the members 89 ‘will assume.‘ ‘T merit,
position in the‘normal path‘o‘f their'travel. ‘
ly‘land
t The roller ‘frames ‘82 and‘v their‘ attendant and
- ‘associated parts areall supported?rromthegroll
in‘
‘
_
I
‘
_
in Figures 8 to "15 I‘have shown an embodi
pment‘of my invention wherein‘ the‘mechanism
er carrier or cage “which bears aboutthe rotat
ing member 10', as shown‘ in Eigure-l-zl, i‘andl‘is for"v tilting‘ the rollers is different from ‘that
held‘ against rotation in the specific manner and‘ ‘shown in Figure 1 in‘ a number of‘res'pect‘s among
‘
~for the added purposes to be hereinafter referred “
‘ ?toyin any preferred or desiredlmanne‘r.
l
‘
t ‘i
‘which‘are the following: '
"
‘i ;‘
-
v
‘
One ‘oflthe rollersi only \is‘moved‘ angular- ‘
ly ‘for initiating the ‘speed ratio change, and-ape 4t,
movement‘of the‘ other‘ rollers hereinafter
ferred or desired manner as by controlleversior 'gula‘r
referred to as the follower‘r‘ollers'for this pur
“ links9G=which in turni‘are operated simultane lpose'ls
performed‘lby the trans
ously and in unison by the regulating rin'gu?‘l, mission automaticallyi
apparatus‘ so“ that in this‘fman‘ner ‘the,
' to lwhichveach of the-links 96 lisaconnect‘ed as ‘control of the angling ln'iovement of‘ the‘ rollers‘ '45
is by‘japivot 98_ carried by awbolt 99, wh‘ich‘isv ‘ is simplified" and made easier. ‘.Asto this ‘advan
shown as ?xedly associated with the ‘ring i91-.: The
arrangement of Figures 8l1to ‘15 is of
ring 91 in turn is supported‘for rectilinear move-. ‘wee my
“
401 > > l'I'heframes 82 are moved'angularly in any‘ pre- '‘
l‘
‘general ‘application tovsystems‘ of i this character
nmentgralong the axis‘ of “the transmissionrinl' any‘
@upreferred ,or‘ desired manner, as‘ for examplenby ‘ ‘regardless’ of whether or not the reactionitorque to‘
50‘ the bolts 94 carried‘ byand extending from the
The.‘ elimination by‘ the ‘ invention of the
‘ i cage 20. i
, The rectilinear movement‘may‘ be impartedto, if“ embodimentt‘of vFigure 8 of theffrictional resist A
.ances inherent tinzth‘e aoperationffof the master
loading
isemployedm?
I
_
,
,
v
v
thecontrolling ring ~91 ‘in any preferred-or de
and the follower rollersuin the manner shown
r,
»
i
v
‘t
‘ P
Figure l removesl‘from ‘the system a variant ‘55
In Figure 1 I haveillustratedone arrangement x in
upon
the‘ accurate functioning of the carriage
for controlling the movement of the ring-‘91. “This ‘ so that the onlyyvariantl upon such functioning
‘ arrangement comprises the annular channel “91' I left is theaction ofthe remote control upon‘ the
sired manner.
‘ formed on the BXtEIfiOI'aSllI‘fEiCB of the 'disc‘Q'l and
‘ ~‘in whichis received the ‘roller 99’Hcarried‘at the
m?Qi‘frec “end of the lever: 98'y’yoperatediby the :shaft
"SB’nan‘dwhiclmin‘turn maygbeoperated in any
master
'1 The roller
roller.‘system
" of Figure
‘.
‘8 r “comprises
t
three
no‘ ‘
‘ It‘ will be assumed that-tthetroller‘ I3 is ‘rotat
rollers one of-lwhichisythelmaster rollerqandthe
l other two the ‘follower rol1ers.,-» ‘ ‘
Figures is and ‘
~ The-master roller l3 shown in
ring in the direction rshown by ‘the arrow ‘in Fig
Figures‘, ll, 15 “and 16-. This‘ pin assembly‘ ‘com
,preferred or desired--manner.:
l :
i
i. ‘65' ure 3, in which event, them‘emb‘er 89 will be in
tthelpp‘ositionishown in fullwilines in thisb'?gure‘,
i‘andtany‘angular movement given‘lto the‘frame
15
is‘ supported on‘ a
pin assembly‘ shownl‘lin‘
‘
‘
_
‘65
"prisesfa roller shaft‘ l?ilhwhich‘is generally squared
as‘ shown at llll and has pins “)2 projecting
‘from; eachnend. 1,93 isnthe bearinglwhichlhas“
{its
bore squared so ‘afs‘to ‘receive the squared sec 70
; contact n with‘ the, roller1 to tilt the ' roller“ about
llll ‘therewithineandlisf made cylindrical err-l
mean‘- axis diametricallythrough the-:point‘iofvlad "ftioni
ternally ‘as ‘shown at; HM, ?'rhejbearin‘e [03,18
hesive ‘contact of the races therewithm l ‘
i"
‘
balanced turning" movement for ' pinned to
‘To-provide aforces
these‘ ?gures‘ it will be oh
applied to‘ opposite" faces of " ‘I05. “Upon viewing’
‘ 1 82‘ will cause‘zthe projection-90‘ tolbe moved into
each roller by
members‘ila'to each
‘75 ,side‘of eacht‘roller so as“ toprovide two such
‘ v the rollers, I duplicate the
‘served that ‘suiiic‘ient ‘play is allowed in the ‘
square ?tbetWe‘en‘ the members I03 and mi- sol‘
2,097,68 1
as to allow the bearing member I03 and the
roller carried thereby to move angularly rela
tively to the shaft and about the swivel pin I05
and therefore about the points of adhesive con
tact between the races and rolling bodies because
the pin I05 is ?xed so as to be diametric of such
’ points of adhesive contact.
The pins I02 are in
the annulus I00. The follower roller frames are
similarly provided with pins I36 carried in ears
I01 and which pins are received also in annular
groove‘ I03’. The sliding movement of the an
nulus I33 resulting from the tilting of the master
roller frame‘82' will in turn cause a simultaneous
tilting of the two follower roller frames exactly
in accordance therewith.
turn supported in the roller frame 82', which in
turn is supported in the spider by means of the
10 pivot pins III and H2 so that the frame 82'
I will now describe my arrangement whereby
can swivel about the axis through these pins. . the tilting of the frames of the follower rollers‘
will initiate an angular movement of the fol
' . Between the roller and the supporting frame
02' is mounted the controlling frame II5, (see
Figures 8 and, 16). This controlling frame is
mounted upon the pins I II and H2 so as to ro
tate about the axis of these two pins;
It is,
however. free to rotate relatively to the pin III
but is engaged to rotate with the pin II2 by
lower rollers themselves.
The pin assembly of each follower roller is
shown in Figures 12, 13 and 14. This pin assem
bly comprises the squared center piece I40 bev
eled off as shown in Figure 14 so as to provide
a head “I and the projecting pins I42.
means of the ?attened end iii of the pin II2 square shaft is received in a'square bore of a
received in the elongated slot II'I formed in the roller bearing I44, which is like the roller pin
I00 in the master roller pin assembly, and both 20
end of the controlling frame II5.
Secured to the pin H2 is the lever I20 which are connected by the swivel pin I45 answerable
to the swivel pin I05 in the master roller pin
carries at its free end the upwardly directed pro
assembly. The pin assembly of the follower
,jection
I20
which
is
shown
as
in
the
form
of
a
25
ball freely received for rotation on the pin I2I roller distinguishes itself from the pin assembly
carried by the lever I20. This ball is received of the master roller in that the head I“ is re
~ in the arcuately shaped groove‘ I22 formed in ceived in the groove I40 so that it can assume
the member I24 which is guided for rectilinear one of two extreme positions 90° apart; This
movement
by the bolts I25 carried vby the control groove I46 in the follower frame is in
30
housing. Member I24 is shifted rectilinearly by clined at an angle of 45° to the axis diametric
means of the crank I25 which has’ therein the of points, of adhesive contact. The swivel pin 30
I45 will be at an angle of 45° to this axis and
slot I26’ inwhich is received the pin I21 car
ried by the member I24. The crank I26 inturn . either to one side or the other thereof.
The position of the head I“ and therefore of
is operated in any preferred or desired manner
35 asfor example by the shaft I28.
the pin assembly will-depend upon the direction
~
In this manner the member I24 is given the of rotation of the roller but whichever way the 35
parallel reciprocation so as to permit the lever roller is rotated, it will be at 45° to the axis
diametrically through the points of adhesive con
I20 to freely angle for purposes of angling the tact.
20
controlling frame I5, and the arrangement shown
40 Permits of the proper. functioning of the recipro
cating movement of the member I24 to give an
angling movement to the member I20.
45
,
The angling movement given to the member
I20 will give acorresponding angling movement
to the controlling frame H5, and this angling
With this condition of the parts, if~a,_.turning
movement is given to the frame about itslaxis this 40
will cause the roller to angle about the-points
of contact simultaneously with the angling of the
master roller.
‘
Having thus described my invention and illus
its use, what I claim as'new and desire
movement ofthe controlling frame will cause trated
>
one or the other of the projections I00 of the to secure by Letters Patent is:
1.
A
transmission
comprising
torque-transmit
member I29 in accordance with the direction of
turn of the roller to apply pressure to the ridge ting members, races associated with said mem
50
I00’ formed on the roller I0 just as set forth bers so as to transmit torques passing through
in connection with the embodiment of Figure 1 said members, a system of rollers in adhesive 50
and a pin IOI carried by the frame‘ II5 will rolling contact with said races so as to transmit
cooperate with themember I29 also just as in torques therebetweet'i. and a mounting for said
races whereby they are made automatically self
the embodiment of Figure’ 1.
aligning about a common center. '
It will be understood, of course, that here also
2. A transmission comprising torque-transmit
the member I20 and its associated parts may be
ting members, races associated with said mem
duplicated for the opposite ‘side of the roller.
bers so as to transmit torques passing through
‘ _In this manner the master roller l0 will be
said members, a system of rollers in adhesive
given
a
translating
movement
across
the
face
v60
rolling contact with said races so as to transmit
of the races to cause it to tilt and in such tilting torques therebetween, and a mounting for said
operation will carry with it the roller frame 82' races whereby they are made automatically self 60
and this roller frame in turn will tilt the frames aligning about a common center‘positioned in a
of the other two rollers in the manner I will plane passing through the rolling bodies.
05
now describe.
,
‘
‘
The pin III of‘the controlling frame is re
ceived in the enlarged opening III' (see Fig
ure 9).
‘
Slidably mounted upon the bearing extension
70 I02 of the carriage'is the annulus I30. This an
nulus is provided with annular groove I00’ in
which is received a pin ‘I04 carried by the ears
3. A transmission comprising torque-trans
mitting members, races associated with said
members, so as to transmit torques passing
through said members, a system of rollers in
adhesive roiling contact with said races so as to
transmit torques therebetween, said races being
associated with hearing members provided with 70
spherical bearing surfaces in contact with com
I 05 projecting from the frame 82' of the master
plementary spherical surfaces one of which is as
roller so that any tiltingof the frame of the
sociated with said torque-transmitting members
75 master roller will initiate a sliding movement of
65
and another of which is associated with the
frame of the transmission, said surfaces all hav
.
,
g
n
‘
I
1,097,631
“ing a common‘ center, wh‘erebysaid races are bodies beinglocated between apair of “races and ‘
automatically‘ ‘selfé‘aiigning‘ about‘xa" common
adapted "to transmit power from one to the‘ other ‘
by adhesive rolling‘contact,,a mounting for one‘
4.1 In combination, a rotatable‘ ‘driving'shaft. ; of said races ‘whereby itnrnay‘ ,move axially‘ to-U
center."
I
,
,
I
‘
,
,
I
,
I
‘ a rotatable driven‘ shaft‘ ‘and‘nieansior driving
‘ one shaftirom the other comprising a system‘ of
‘ interacting "races ‘and rolling‘ bodies operativeiy
“ associated with ‘said ‘shafts; said ‘races being‘
mounted so as to rotate ‘with said shafts‘, and
said roiling bodies being injadhesive ‘driving con
ward the other race,‘an element, for carrying said
rolling bodies, means for generatin‘gaxial p‘res- ‘
sures to maintain‘ adhesive‘ ‘rollingecontact be
.tween said races and rolling bodies in ‘response
to ‘torques transmitted ‘to‘it, said means come
[prising a member movable with said element
tact with‘said races,‘ so as to transmit‘ power , ‘and adapted to transmit torques from said ele
therebetween',“a member movable by‘ the reaction ‘ment to said ‘means, means to transmit axial
‘forces between ‘the rollers;jand‘ the‘ races, a
pressures ‘generated by said axial pressure gen
torque-loading device fordeveloping and apply
erating means to f‘said movable race, and a ‘
ing the required pressure to the points otad-e ‘mounting for said member whereby it is adapt
hesive3contact‘of“ the races and ‘rolling bodies ed for self ‘adjustment by movement transverse
to maintain the adhesive driving contact ‘thereof,
means operative between said member and said
torque-loading ‘device whereby torques in said
‘20 member ‘are transmitted ‘to said torque-loading
device and ,‘ means operative between said‘torqu‘e
to the axis of the said races.
‘
V,
.
,
8. In a power transmission system,~a pair of
opposed coaxialrotatable, toric‘races, and rollers
therebetween and in‘ adhesive driving contact
therewith, for transmitting power from one of
loading device: and one ol‘the ‘races for ‘trans- “ said races to the other, a mou‘ntingforone of ~
‘mitting pressure theretohand a mounting for ‘said races whereby itis adapted to move toward ,
said torque-loading device‘ and‘ associated race
the other race, a member positioned between said
whereby they are adapted ‘for limited displace-v ‘races‘in which saidrollers ‘are journalled, a
ment so as to be self-aligningas an assembly“ mounting for said member‘wherebyit is adapt
ed to 'pivotabout the axis of the‘ races, means
‘ ,
5. In a power transmission, for transmitting for‘c‘onverting torque“ into axial pressure and for ‘
applying it to said movable race so ass-to cause
, power from a ‘rotating driving member to am
it to move toward the other race and thereby to 30
30 tating coaxial driven member,‘ a system ofraces
' and ‘rolling bodies, said races beingoperatively ; maintain the adhesive driving contact between
withreierence to the‘rolling bodies“
‘
‘ associated with said members and said ‘rolling
bodies being, ‘located , between said races‘ ‘and ‘
‘ adapted to transmit power from one to the other
> by adhesive rolling contact‘, an element for car
rying ‘said rolling bodies,‘means ‘for ‘generating
axial pressuresto maintain adhesivecontact be
tween said races‘ and rolling ‘bodies in response
.i to torques transmitted‘to it, said‘means com
‘said races and rollers,‘ said meansibeing posi- ,
‘tioned externally of the race and f roller system, >
and an ‘operative connection‘between said mem
her in which said rollers are journailed and said
, pressure‘ means, whereby‘ the torques acting on
said member are transmitted to said torque con
verting means and converted into an axial pres‘
sure. said connection being e?ected along a path
prising amember movablehwith saidelement and external to theperipheryof the race that is posi
40 "adapted
to transmit torques from‘ said‘ element Htio‘ned‘ betweensaid ‘member and‘ ' said torque
i to‘ said meansmeans to transmit‘ axial pressures
converting means; _
,
or
e
,
40
I
‘generated by said axial pressure‘ generating
means to said last-‘mentionedrace, and‘ mount
ings‘i'or said means, said‘ member and said‘last
“ 9._In a power transmission system, a ?xed sup
port, a pairot opposed‘ coaxial toric races rotat~,
ably mounted in ‘relation to; said ‘support, and‘ '
- self-aligning adjustment about a point coincid
ing contact therewith, for transmitting‘power
mentioned race whereby they are adapted for
rollers between. said races and ‘in adhesive driv
mg with the resultant of the‘ points’ of,‘contact of , from one of said‘races to the other, a mounting
for-one of ‘saidraces whereby it is adapted,v to
theraces and rolling bodies; ‘‘ I‘ i i
50
‘ '6. In a‘ ‘power transmission‘i'or'transmittingi move toward the, other ‘race, a member‘ posi
power from arotating driving member to ‘a ro tioned ‘between said races in which said rollers are
tating coaxial driven‘member, a system of races journalled, a mountingitor said member whereby
and rolling bodies," said races being operatively
it is adapted, to pivot about the axis of the races,
associated I‘ with said membersf‘and said rolling ‘,means tor converting torque into axial pressure 65 ‘
bodies being located‘ between said races ‘and
adapted to transmit power from one to the other‘
and for applying it to‘said movablerace ‘so as to
cause it to‘ move toward the other race and there
by adhesive driving contact, ‘amounting. for ‘one 'by to. maintain the adhesive driving‘ contact be
of said races whereby it, may move ‘axially to ‘ tween said races and rollers. said ‘means being po
ward the other race,'an elementforcarrying said sitioned externally of the race and roller system, ~ I >
and between one ‘of the races and the ?xed sup 60
rolling bodies, means tor, generating axial pres
port,
and‘ an operative connection between said
sures to maintain the ‘adhesive driving‘ contact‘
between said races ‘and rollingibodies in‘response ,member'in which said ‘rollers are journalled and
to torques transmitted toit, ‘said means compriss
said. pressure generating means, whereby "the
adapted to transmit torques from said element
to said means, means to transmit axlalpressures
said torque converting means and converted into as
an axial pressure, said connection beingv effected
' tating , coaxial driven member?‘ Mega system of , races
ing contact, therewith ‘for transmitting power
‘associated withsaid members and said rolling
one of said races whereby it is adapted to move
ing ‘a ‘member movable with said element and , torques acting on said frame are transmitted to‘
65
generated byvi‘said axial pressure generating along a path external to and surrounding the
means to said‘movable ‘race, and‘ a mounting to perr'phery of said last-mentioned race.
10. vIn a power transmission system, ‘a ?xed
for said member whereby it is adapted ior‘self
support, a pair of opposed coaxial toric races ‘ro 70'
I
‘
,.
70 aligning adjustment.
7. In a power‘ transmission ‘for transmitting tatably mounted-‘in relation to said support, and rollers between said races and ‘in ‘adhesive driv-‘
power from a rotating ‘driving. member’ to a, ro
and roliingbodies, ‘said races'being' ope‘ratively from one of said races to the. other,‘ a mounting for
75
8
2,097,031
toward the other race, a member positioned be
_ ‘tween said races in which said rollers are jour
nalled, a mounting for said member whereby it
is ‘adapted to pivot about theaxis oi’ the races,
means for converting torque into axial pressure
and for applying it'to said movable race so as to
cause it to move‘and thereby to maintain the
13. In a power transmission system of the race
and roller type, a rotatable member, a race
mounted on said member for rotation therewith
but free to slide in relation thereto, a second race
coaxially surrounding said member and freely ro
tatable relatively thereto, means preventing axial
movement of said second race with relation to
vadhesive driving contact between said races and
member, said races being of the toric type,
‘rollers, said means being positioned externally ‘said
a system of ‘rollers between'said races and in ad
of the race and roller system, and between one hesive driving contact therewith for transmitting
10
of the races and the ?xed support, and an opera
power from one of said races to the other, a car
tive connection between said'member in which rier for said rollers adapted to move under the
said rollers are journalled and saidpressure gen
action of the resultant torque passing through
erating means, whereby the torques acting on
' said frame are transmitted to said torque con
verting means and converted into an axial pres
sure, said connection being effected along a plu
rality of paths symmetrically arranged .exte
riorly of the periphery of the race that is posi
tioned between the member and'said torque con
verting means.
‘
‘
11. In a power; transmission system, a ?xed
support, ‘a pair of opposed coaxial toric races ro
tatably mounted in relation to said support, and
rollers between said races and in adhesive driv
ing contact therewith for transmitting power
the rollers, means for converting torques into
axial pressure, said means being positioned to one
side of said ?rst mentioned race and externally
to the race and roller system, means for trans
mitting the torque from said carrier to said axial
pressure generating means, and means interme
diate said axial pressure generating means and
said ?rst mentioned race whereby axial pres
sures from said axial pressure generating means
are transmitted to said ?rst-mentioned race but
torques are not transmitted.
14. In a power transmission system of the race
and roller type, a ?xed support, a~rotatable mem
from one of said races to the other, a mounting for one of said races whereby it is adapted to ber journalled in said support, a race mounted on
said member for rotation therewith but free to
move toward the other race, a member positioned slide
in relation thereto, a second race coaxially
30. between said races in which said rollers are jour
surrounding said member and freely rotatable 30
nalied, a mounting for said member whereby it is relative thereto, means on said support for pre
adapted to pivot about the axis of the races, venting axial movement of said second race, said
means for converting torque into axial pressure. 7 races
being of the toric type, a system of rollers
and for applying it to said movable'race so as to between'said races and in adhesive driving con
cause it to move and thereby to maintain the ad
tact therewith for transmitting power from one
hesive driving contact between said races and
of said races to the other, a carrier for said rollers,
rollers, said‘means being positioned externally of means
for converting torques into axial pressure,
the race and roller system and between one of said means being positioned to one side of said
‘the races and the ?xed support, and an opera
?rst mentioned race and externally to the race
40 tive connection between said member in which
and
roller system and between the same and a 40
said rollers are journalled and said pressure geri
erating means, whereby the torques acting on said
frame are transmitted to said torque converting
means and converted into' an axial pressure, said
connection being e'ifected‘along a path external to
' and surrounding the periphery of said last men
‘ tioned race by interengaging surfaces adapted to
permit universal relative adjustment.
12. In a power ‘transmission system; a ?xed
support, a pair of opposed coaxial toric races
rotatably mounted in relation‘, to said support,
and rollers between said races and in adhesive
driving contact therewith for transmitting power
.55
sure generating means, and means intermediate
said axial pressure generating means and said
?rst mentioned race whereby axial pressures from 45
said axial pressure generating means are trans
mitted to said ?rst mentioned race but torques
are not transmitted.
_
15. In a power transmission system ofv the toric
race and roller type, a rotatable driven member, 50
and~a rotatable driving member coaxial there
with, the end of one of said members being ‘pro
vided with a recess and carrying within said re
from one of- said races *to the other, a mounting
for‘one ‘of said races whereby it is adapted to
move toward the other race, a member positioned
between said races in which said rollers are jour
‘cess a bearing within which is vjournalled the end
of the other 01’ said members, said other mem 55
ber being surrounded by a pair of opposed toric
nalled, a mounting for said member whereby it
is adapted to‘ pivot about the‘axis of the races,
ing a ‘keyed connection with said other member
whereby it is constrained to rotate therewith but
is free ‘to slide in relation to said membena driv .60
ing connection between the other of. said races
60 means for converting torque into axial pressure
and for applying it to said movable race'so as to
cause it to move and thereby to maintain the ad
hesive driving contact between said’ races and
rollers, said means being positioned "externally
65 "of the "race and roller system and between one
of the races and the ?xed support; and an op
erative connection betweenisaid member in which
said rollers are journalled and said pressuregen
crating means, whereby the torques acting on
70 said frame are transmitted to said torque con
verting means and converted into an axial pres
71s
portion'of' said support, means for transmitting
the torques from said‘ carrier to said axial pres
sure, said connection being eifectedalong a path
external to and surrounding the periphery of said
last mentioned‘ race by interengaging surfaces
adapted to permit relative sliding.
’
races, a mounting for one of said races compris~
and said bearing-carrying member, rollers be
tween said races and in adhesive driving contact
therewith for transmitting power from'one of said
races" to the‘other,‘ a yieldable carrier for said 65
rollers and means associated with said yieldable
carrier and adapted to move and to become oper
ative when said carrier yields, for converting the
torques passing therethr'ough into an axial pres
sure and for applying said axial pressure to one of
said races so as to maintain the adhesive driving
contact between said races and rollers.
'16. In a power ‘transmission system of the toric
race and roller type, a ?xed support, a rotatable
driven member and aprotatable driving member
r 9,097,881
coaxial therewith journalled in said support, the
end of one of said members being iournalled with
in the end of the other of said members‘, said one
member ‘being surrounded by a pair of opposed
toric races, a mounting for one of said races com
prising a keyed connection with said one‘member
whereby it is constrained to rotate therewith but
is free to slide in relation thereto, and a mount
ing for the other of said races whereby it is ro
10 tatable in relation to said member, a driving con-,
‘nection between said last named race and said
other member, rollers between said races and in
adhesive driving contact therewith for transmit
ting power from one of said races tothe other, a
15 carrier for said rollers, an abutment on said ?xed
support for preventing movement of said last
named race away, from the rollers, and means as
sociated with said roller carrier and having a por
tion thereof located between said ‘first named
20 race and said ?xed support for converting the
torques passing therethrough into an axial pres
sure and for applying said axial pressure to one
' of said races so as to maintain the adhesive driv
9
frame for free angling movement about an axis
passing through the contact points of the roller
with the races but restricted to tilt in unison with
said frame, a second frame tiltable independently
of said ?rst frame and operator operable means
for tilting this second frame, a roller engaging
element carried by said second frame so as to be
capable of rotational movement in the direction‘
of rotation of the roller and means for limiting
said rotational movement to a predetermined are. 10
18. In a friction transmission system of the
toric race and roller tyne, coaxially opposed toric
surfaces and rollers therebetween, a mounting for
one of said rollers comprising a frame free to tilt
and a bearing for said roller carried by said frame 15
so as to be capable of free angling movement
about an axis passing through the contact points
of. the roller with the races, means for causing
said bearing to tilt, in unisonwith the said frame,
a second frame tiitable independently of said ?rst 20
frame and operator operable means for tilting
said second frame, a roller engaging element car
ried by said second frame‘so as to be capable of
rotational movement in the direction of rotation
of the roller and a stop for limiting said rotation 25
al movement to a predetermined are, said element
become operative when said carrier yields. '
being spaced only slightly from part of the sur
17. In a friction transmission of the tcric race ,
face of the roller, so as to engage the roller when
and roller type, two coaxially opposed toric sur
faces and rollers therebetween, a mounting for ever the said second frame is tilted.
30
30 one of said rollers comprising a frame free to tilt
ALAIN
MADLE.
and a bearing for said-roller supported by said
ing contact between‘ said races and rollers, said
25 last named means being adapted to move and to
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