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Патент USA US2404907

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D. H. HEYNAU
2,404,07
DRIVING MEGHANISM
Filed Oct. 12, 1942
70
Faas
5 Sheets-Shee‘i'l l
July 30, 1946.
2,404,907
D. H. HEYNAU
DRIVING MECHANISM
Filed Oct’. 12, 1942
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D. H. HEYNAU
2,404,907
DRIVING MEGHANISM
Filed Oct. l2, 1942
5 èheets-sneet 5
Patented July 30, 1946
2,464,907
UNITED STATES PATENT OFFICE
2,404,907
DRIVING MECHANISM
David Hans Heynau, Yellow Springs,'0hio
Application October 12, 1942, Serial No. 461,683
6 Claims. (Cl. 'Z4-284)
2
1
This invention relates to a power transmission
unit for transmitting power from the prime mover
to a load and more particularly to a variable
speed power transmission unit.
An object of this invention is to provide a pow
er transmission unit wherein the speed of rota
tion may be varied and reversed at the will oi
view of the preferred embodiment of the speed
control mechanism used in supplying power for
actuating a gun.
Figure 2 is a longitudinal cross sectional view
of the variable speed control mechanism, taken
substantially on the line 2--2 of Figure '7.
Figure 3 is a fragmentary perspective View of
the lever, the bushing controlled thereby and
the conical member removed from the housing.
Figure 4 is an exploded View of the bushing
a control mechanism for controlling a variable 10
control mechanism.
speed and reversing mechanism easily and efñ
the operator without shifting gears.
Another object of this invention is to provide
ciently at the will of the operator.
‘
Figure 5 is a diagrammatic end View of one
bushing and its control mechanism to show the
nature of the cavities therein.
Figure 6 is an exploded view of the differential
power from a common prime mover to several 15
loads, either independently or simultaneously at
mechanism.
Figure 7 is a cross sectional view of the variable
various speeds, the speed of one unit differing
speed control mechanism, taken substantially on
from the speed of another unit.
the line '1_1 of Figure 2.
Another object of this invention is to provide a
control unit for controlling the movement of a 20 The control mechanism for the gun includes a
cage that is rotatably mounted with the gun,
gun at the will of the gunner, which gun is power
which cage supports the driving mechanism, the
driven.
necessary controls and the gun, as will appear
Another object of this invention is to provide a
more fully from the description of the device that
pair of power transmission units responsive to a
Another object of this invention is to provide
a multiple power transmission unit transmitting
common prime mover, one of which units may be 25 will now be made.
Referring to the drawings, the reference char
used in elevating the gun and the other in rotat
acter It indicates a wall of a fuselage, wing or
ing the gun horizontally.
some other portion of an airplane provided with
Another object of this invention is to combine
an annular opening. superimposed upon and at
a .power transmission unit utilizing a planetary
gear system wherein the relative speed_of the 30 tached to the margin of the wall lll is an annular,
internally toothed gear ring II. The gear ring
gears may be changed in either direction, to
il and the inner margin of the wall lll cooperate
thereby control the output speed and direction of
to form an annular channel opening inwardly.
rotation.
A cage l2 is carried in the opening in the wall
Another` object of this invention is to provide a
variable speed and reversing unit driven by a ,w Us l0. This cage l2 is provided with an annular
uni-direction constant speed prime mover`
Another object of this invention is to provide
outwardly directed flange i4, projecting into the
movement at the control are translated into un
channel formed between the inner margin of the
wall lllrand the internally toothed gear ring Il.
The flange I4 is mounted'upon suitable roller
bearings I6 and I8 disposed upon opposite sides
equal increments of movement at the variable
speed reversing mechanism.
of the flange and engaging the wall l0 and the
gear ring Il respectively. Although member H
Another object of this invention is to provide a
control for a variable speed reversing mechanism
such that predetermined increments of move
ment of the manual controls at low speeds re
sult in a slight change in speed ratio and the
same increments at high speeds greatly change
the speed of the device.
Other objects and advantages reside in the "
construction of parts, the combination thereof
and mode of operation, as will become more ap
has been referred to as a gear ring, a gear sec
tor or gear sectors could be used for some types of
a manual control for a variable speed and re
versing mechanism wherein equal increments of
parent from the following description.
In the drawings:
Figure 1 discloses a schematic cross sectional
installations.
A prime mover 2l), such as an electric motor, is
mounted in one end I9 of the cage l2, which end
may -be referred to as the bottom of the cage, as
viewed in Figure 1. The cage need not necessarily
be arranged so that the lower end shown in Fig
ure 1 is always at the bottom, as the gun in some
installations may be mounted below the cage, in
which event this end would then be the top of
the cage, or the gun may be mounted so that this
particular end could be referred to as the vertical
2,404,907
4
3
cal members, the speed of the metallic ring 4| is
changed. Thus, by rotating the conical members
end of the cage. In other words, the cage is
mounted opposite the gun, irrespective of the
particular location of the gun.
This prime mover 2c may consist or" an electric
motor energized from a suitable voltage source.
If, for example, the available voltage is 12 volts
direct current, then the ,prime mover would be a
l2 volt D. C. electric motor. This prime mover
may be set to rotate at a constant speed in one
direction and the same direction at all times 10
3d and 36 at a constant speed, it is possible to ro
tate the conical members 38 and Ml at a higher
or a lower speed, depending entirely upon the
adjustment of the conical members. The mech
anism for adjusting the conical members will no'w
be described.
An adjusting lever |90 is mounted on a shaft
|62, which shaft is pivotally mounted to the hous
ing 32. This lever is bifurcated and provided with
apair of arcuate slots |04, one in each bifurcation
lima and mtb. The centers of curvature of the
slots IEM are displaced from the axis of the shafts
when in use.
A pair of reversible, variable speed transmission
units 39 are mounted on either side of the prime
mover or electric motor «25, one on each end.
'As
these reversible, Variable speed transmission> units 15 |532, >so that as the lever |99 is oscillated, a pair of
pins |86, actuated by the slots IM, have a longi
are identical, only one will be described in detail.
tudinal movement parallel to the axis of the shaft
As may best be seen by referring to Figure
the reversible Variable speed transmissionunit " El). Each pin |06 has one end iixedly attached
in the bushing 85, there being one pin itâ mount~
St includes a housing 32. This housing enclcses a
plurality of conical members 34, 3S, 38 and ¿te 20 ed on each side of the bushing, so that as the lever
|539 is oscillated' about the pivot |92, the'bushing
arranged in pairs rotatably connectedfthrough a
85' moves to the right or to the left, as viewed in
rigid, metallic ring M. The conical members 3i
Figure 2. _Since there' are two diametrically dis
and 35 constitute the driving unit for thering
driving the conical members 33 and liti.
_ posed pins |96, it reduces twisting movements.
' '
The relative speed of the two pairs of conical 25 The angular position and the shape of the arcuate
slot is determined by the speed changing require
members is dependent upon their adjustment.
ments. For aircraft guns it is preferable that
The-conical members 34 and 38, are mounted for
a predetermined increment of movement of the
rotation without axial adjustment. The other '
slots causes a slight change of speed-at» low speeds
conical member of each pair, namely 355 and 4t,
are mounted for axial adjustmenaas will appear 30 and a like increment of movement causes a great
chan-ge in speed in the higher speed ranges. This
more fully from the detailed description that folV~
permits the rapidshifting of the gun until it is
lows.
. directed near the target, when it may be adjusted
Conical member v3ft' is integral with a tubular
slowly to keep it directed on the target.`
Y
sleeve 42 splined to a shaft 59 that is either inte
In order tocau'se bushing i6 to be adjusted in
gral with or connected to the rotor shaft 22. The
unison with the bushing 85, these two bushings
tubular sleeve 42 is journalled in a bearing 52 and
are interconnectedrby a connecting rod which
the end-thrust bearing 54, the end-thrust bearing
will now be described; Bushingl member 85 is pro»
having the inner race arranged to abut the coni
. vided with a cut-away portion or notch Il!) re
cal member ät, so as to prevent axial movement
thereof. The conical member 38is also provided
ceiving a projection'llZ located between notches
Ill and | I3 and integral with a tubular sleeve
H4 mounted upon a reduced end of a pin H5,
with a tubular sleeve 53 mounted on a splined
shaft SÉ. vThe tubular sleeve 53 is journalled in
provided with an enlarged end having cut-away
a bearing e2 and an endfthrust bearing Sli, the
portions ||8 andV |20, leaving an'exteneion |22.
inner race of which abuts the top'of member 38.
The bearings 52, 54, 62 and Fili are press-fitted or
otherwise secured inV position in the cavitiesfound
in the housing 32. The end-thrust bearings 5t
and 64 abut suitable shoulders that provide solid
45
The exten-sion |22 projects into a suitable notch
|24 in bushing member 1Eì.v_ The cut-away por~
tions or notches HEI, ||"|,v|l3, H8, |29 and |213
arejprovided with arcuate bottomsrthat have a
Vcurvature corresponding to the complementary
Y ~
_
>
‘ In order to provide adjustment for the conical 50 part of the adjacent Ymember. The' radii or"
notches llû'and |24 are concentric with the lon
members 36 and 4G, each of these members is
gitudinal axis of the pin H6 and substantiallyv
mounted for axial adjustment. The conical
mountings for these bearings.
concentric with the axis of rotation of the ring
4|. The curvatures of notches Il!> and H3 are
ings ?2 and` 1Q, of which the latter is an end- .. centered on the axis of rotation of conical 'mem
ber 40. The curvatures of notches H8 and |25
thrust bearing. The bearings ‘i2 and _lâ are not
are centered on the axis of rotation of the conical
fixedly secured to cavities in the housing 32; but
member 36. For the purpose of illustration, the
instead. are mounted in an adjustable Ybushing
bottoms of some rof the cut-away portions have
'i6 mounted for axial movement parallel to theV
longitudinal axis of the shaft äíi. lThe conical 60 Vbeen indicated schematically in Figure 5. This
arrangement causes the bushings 16 and 85 to be
member Mi is integral with the tubular sleeve Sil,
moved in unison. Due to the fact that the coni
splined upon the shaft t0, and journalled in bear
cal members 36 andv 45 are diagonally disposed,
ing 82 and 84, of which the latter is an end
or located upon opposite sides of the ring 4|, it
thrust bearing. The bearings S2 and 84 are
fixedly mounted in a tubular bushing S6 mounted 65 can'be readily >geen that as these conical members
member 35 is integral with a tubular sleeve lil
splined upon the shaft Sii and journalled in bear
for axial movement in the housing 32.
.
In order to change the relative speed of the
are adjusted-to the right or to the left, as viewed
in Figure 2, one willbe moved away from and the
other toward the other'conical member of the
pair, or vice versa. This causes the -ring 4| to
are' adjusted axially in unison. Thus, it is pos
sible to increase the distance between conical 70 be seated between the conical’ members and con
tacting the conical members, .irrespective of the
members 34 and 36 and at the same time adjust
relative adjustment of the conical members.
conical members> 38 and ¿it toward each other. ,
A suitable compressible washer or spacing
If members Se and 36 are adjusted toward each
member |30 is located between the shoulderv |32
other, members 38 and ¿it should then be sep
arated. By changing the adjustment of the coni 75 on the'. pin H6 and the tubular sleeve H4. In
pairs of conical members, the bushings ’it and 86
2,404,907
5
6
stead of a compressible washer being used, a rigid
in the ring gear |64. The opposite end of the
spider |55 is journalled in a pair'of bearings |16
washer of suitable size either with or without
and |3D. The bearing |76 is mounted in the ring
In order to
gear |64 and the'bearing |85 is mounted in the
tighten or loosen the pressure exerted by the coni
housing |82 enclosing the differential mechanism.
cal members against the lbevelled inner periphery
A bearing |84 is mounted within the spider |56
of the driving ring Lil, it is merely necessary to
adjust the lock nuts |313, threadedly engaging the
and supports the outer end of the shaft 50.
The output shaft |69 of the reversible, variable
end of the pin | |8. The use of the tubular sleeve
speed unit mounted to the right of the prime
im in addition to permitting adjustment, also
facilitates assembly of the parts.
10 mover is ñxedly attached to the spider |56 and
is connected through a suitable coupling unit 28€)
The connecting unit has been centrally posi
to a drive shaft 202 projecting into a speed re
tioned in the plane formed by the axis of rota
duction gear box 22d, provided with a drive shaft
tion of the shaft 5D and the axis of the shaft 60.
206 suitably journalled at 208 and 2|il to the side
By mounting the connecting unit in this central
position, theY bearings may be easily adjusted. 15 wall of the cage I2, and carries a gear 2 I2 meshing
shims as required, may be used.
This connecting unit, consisting of the tubular
with the inwardly directed gear teeth on mem
sleeve | I4 and a pin H6, is actuated by the move
ment of one bushing in a direction parallel to the
movement of this bushing and parallel to the
movement of the other bushing. This tends t0 re» 20
ber ||. The control lever |20 is driven through
duce torque and twisting movement. Further
more, the central location of the connecting unit
is a direct method of interconnecting the bushing
and the adjustable conical members, thereby ob
taining a direct, rigid connection between the
bushings.
It can readily be seen that a sym
metrical arrangement of parts is thereby obtained
to great advantage.
a shaft 22|! attached to one of the shafts |02,
which control lever is provided with a crank or
lever 222 actuated by the gunner seated in a seat
22e. It is merely necessary for the gunner to
actuate the lever 222 to the right or to the left
to rotate the gun 226 mounted on top of the cage
I2, as viewed in Figure 1, either in a clockwise or
a counterclockwise direction, depending entirely
upon the movement of the control lever 222.
The reversible variable speed unit 35 mounted
to the left of the prime mover, as viewed in
Figure 1, has the output shaft |65 rotating a
The shaft 50 has splined on its outer end a sun
gear |59 meshing with a planetary pinion |52 30 drive shaft 282 projecting into a speed reduction
journalled on a pintle |54 carried on a spider |58
gear box 204, identical to the one already de
that has fixedly attached thereto a drive shaft
scribed. The output shaft 2&6 of this second
|66. The outer end of the shaft 5B has splined
unit has its upper end terminating in a worm
thereto a gear |62 meshing with the external gear
gear 230, meshing with a worm gear sector 236,
teeth |66 of a ring gear |54, having its internal
raising and lowering .the gun in response to
gear teeth meshing with the pinion |52.
When the velocity imparted by the sun gear
|50 to the planetary pinion |52 is equalled and
opposite in direction to the velocity imparted by
the ring gear IEi?l, the axis of the planetary pinion
|52 journalled on the spider |56 stands still. This
causes the spider and the output shaft |60 to
movement of the lever 222 shown to the left of
Figure 1. Thus, it is seen that the angular po
sition both horizontally and vertically may be
adjusted from the same prime mover rotating
at a constant speed, without changing gears,
but merely changing the relative speeds of two
rotating shafts.
stand still. This condition exists at a predeter
mined relative speed ratio of the shafts 50 and
shown for the purpose of illustration.
60.
This speed ratio will zbe referred to as the
rangement of parts may be altered and the
critical speed ratio. Whenever this speed ratio is
reduced, the spider |56 will rotate in one direction
and whenever the speed ratio is increased, the
spider will rotate in the opposite direction. The
mechanism changed so as to carry out the same
The device disclosed herein has merely been
The ar
fundamental principles. Instead of utilizing a
mechanica1 control device, such a control device
may be hydraulic or possibly electrical.
gear ratios may be so selected that the critical 50
The device is easily controlled. Instead of
speed ratio of the speed of the shafts 5D and 6|)
utilizing separate control levers, a single control
occurs when the conical members of both pairs
lever or pair of control levers moving in unison
are equally spaced so that by separating the driv
may be used, for example, such that the hori
ing conical members, the spider rotates in one
zontal movement rotates the gun horizontally
direction and vice versa. This permits the re 55
and the vertical movement raises or lowers the
versal of the speed changing unit. By selecting
gun, as viewed in Figure 1. As a matter of fact,
the proper gear ratios, the critical speed ratio may
these movements may be so arranged that the
be one or unity. If so, the spider will stand still
handles
point in the direction of the target.
whenever the shafts 5E] and 68 rotate at the same
speed. In the event the shaft 60 rotates at a 60 Both units may operate simultaneously, causing
the barrel of the gun to swing through a diago
faster speed than the shaft 50, the spider will ro
nal
path, depending upon the relative speed of
tate in one direction and when the shaft G0 ro
the two units. By this arrangement, it is pos
tates slower than the shaft 5t, the direction of
sible to keep the gun aimed at the target, irre
rotation o-f the spider will be reversed. This one
spective of the relative movement of the .target
65
to one ratio of the shafts 52 and S0 has merely
with respect to the gun. When the target is
been selected for the purpose of explanation, as
passing rapidly within the range of the gun, the
it is not necessary for the operation of the re
gun may be moved rapidly. When the target is
versible, variable speed unit to select a critical
moving more slowly, the movement of the gun
speed ratio of one.
As may best be seen by referring to Figure 6, 70 may be reduced. In the event a target lmex
pectedly enters the range of the gun, but the gun
the spider |56 is provided with a plurality of
is directed in some other direction, the gunner
openings receiving the pinions |52. The end Iâûa
may rapidly swing the gun at a high speed into
of the spider is journalled in a pair of bearings
position to be aimed at the newly discovered
|79 and |12. ’I‘he bearing |18 is ñXedly mounted
in the housing 32. The »bearing |12 is mounted 75
target.
’
_
2,404,907
8
ïDue to :the 'fact 'that Y'in .aircraft Vwari'are'tlfieY
the‘bushings »and their respective corneal 'çmem
target `may be'within the range fof theigunïfor
a .period equal to :afraction :of a'minuta'it can
bers .to‘bexadjusted in parallel paths.
'î 2. .'Afdriving mechanism 1 for ,transmitting --vari
readily >be ¿appreciated that " it is very " important
ous ïmovements Y.to driven means, said driving
that'fthe driving >mechanism be ¿adapted to rap
idly swing the gun into position, Vbut ’at’th'e same
time to'permitïslow movement of >thegun .to keep
it‘on'the'target. .It is Vpossibleïto do so ïby the
driving mechanism shown herein.
.In the :embodiment shown herein the prime 10
mechanism .including Va pair of .variable ispeed
moverfand the `.reversible variable speed :units
driving '.means, Veach 'of said driving means in
cluding a’pair of coaxially mounted conical'driv
ing members, a second’pair of coaxiallym'ounted
conical driven members, one ïof .theiconical mem
bers of each pair `being adjustablyimounted îfor
` axial adjustment, va drivingring fortransmitting
power »from the conical `driving members to the
conical driven members, a pair of :tubularìbush
have been *mounted upon Vthe end wall ‘of the Y
cage. ,The prime mover `and the reversiblevaria
ble .speed :units maybe mounted‘elsewhere within
ings mounted for axial movement, .one ¿of the
the '.cage, or ¿for thatlmatter, on .the outside .of
the cage, whichever'may prove themost advan
.tubular bushings Vbeing -coaxially disposed with
tageous for v.the :particular `gun ‘mounting and
respect to the conical driving'members >one of
' which is .journalled in said bushingiorm'ove
available >parts 'and space. Ilï‘urtl‘iermore, the
ment therewithVsaid ‘one >bushing being located
prime ¿mover ‘and the -reversible lvariable .speed
for axial-adjustment on one'side of the yringthe
units :maybe mounted outside Vof .the cage, so 20 other tubular lbushing Ybeing c'oaxially Vdisposed
thatone reversible variable speed unit will .ac
with 'respect tothe conical driven members, Yone
tuate an external ,gear on the cage'for. horizontal
of'which‘ijs -journalled therein .for axial move
movement, as ìviewedîin Figure 1, and the other
ment therewith, said'one bushing being’ located
reversible variable speedunit may drive a shaft
on the opposite side“ of the ldriving ring, saidV
extending Vup through the center'of the cage,„so 25 bushings being provided with notches opening
as to actuate the elevation of the gun. rThe >con
so as to be directed in the generalY directionof
trols ¿could then `be .brought up `through '.the‘cen
the axis-of rotation of the drivingiring, and con'
ter ofithe cage by suitable links and connecting'
necting means including a cylindricalfc'onnecting
units, so that the Voperator could control `the
member for interconnecting the bushings, said
units independently'of- themovement ofthe cage. 30 cylindrical connecting member including cutThis arrangement would `serve to .reduce .the
away portions on fopposite sides of extensions
weight ofthe cage proper thathasetobe moved,
projecting into'said' notches, so Vthat `a'srone bush
thus, reducing the required power. Further
ing is adjusted theother bushing is adjusted 'in
more, for .some installations, Athe .Cage may 4be
the ‘same direction, to thereby Aadjust the two
eliminatedin its entirety, the reversible variable
conical ’members journalled in ïthe bushings >in
speed units being vused to actuate the gunperse
unison to changethe relative speed of the driven'
and the parts carried thereby.
members with respect to the driving members. '
Although the preferred .modiiication of vthe
3. A driving mechanism for transmitting vari
device has been described, it will be understood
ous movements to driven means, said vdriving
that within `the purview of thisinvention .various
mechanism including 'a pair vof variable speed
changes may be made inthe çform, -details, ,pr.o~
driving‘means, each of said driving means in
portion and arrangement or parts, .the combina
tion ‘thereof and mode of , operation, which >gen
erally stated consist in va device capable of carrymr
ing out the objects set forth, as disclosed and-'de
fined in the appended claims.
,
, Having thus described my invention,.I claim:
l. `A driving mechanism for transmitting vari
ous movements to driven means, »said .driving
mechanism including a .pair of variable ~speed
driving means, each cfsaid driving'means includ
ingla Vpair of coaxially mounted .conical Vdriving
members, a second pair of coaxially mounted
conical driven members, one of the conical mem
bers of each pair being adjustably mountedfor ».
axial adjustment, a drivingringlfor transmitting
cluding a pair .of coaxially mounted conical
driving members, a second -pair -of coaxially
mounted conical driven '-members, one »of vthe
conical members of -each pair being fadjustably
mounted for axial adjustment, la driving ring
for transmitting‘power from the conicalrdriving
members to the conical driven 'members la pair
of tubular 'bushings mounted for `axial move
mentf'one of the tubular bushingsïbeing'coaxially
disposed with respect to the conical driving
members `and ‘located for axial >adjustment -on
one-side of the ring, the other tubular bushing
being coaxially disposed with respect 'to the
conical driven members and located on the op
positeside of the driving ring, each ofthe `>ad
Vjustablerconical members terminating in a tubu
power from the conical driving members to the
lar-sleeve journalled in one-of said bushingsrfor
conical driven members, each of 'the adjustably
mounted conical members terminating in aY tubu
axial adjustment therewith, said bushings being
lar sleeve portion, a pair of tubular bushings 60 provided with notches openingso as 'to bedi
rected=in`thegeneral direction of the axisl of >ro
mounted -for axial movement, said bushing o'f
tation of the drivingring, andconnecting means
oneof the conicalmembers being located on one
side of the driving ring and the bushing of the
other-conical member being located onthe oppo
site "side ofthe -driving ring, "and connecting
provided with vextensions Vprojecting into said
notches, said connecting .means'including `a pin
and 'a sleeve mountedupon the pin, saidpin hav
means including a notched tubular memberfsaid
connecting means holding theïbushings in ñxed
spaced'relation 'from each othenso that as one
bushing is adjusted and with it its conical mem
berfthe other bushing is'adjusted and with it its 70
ing :an >extension projecting into .one of ',.the
notches of one bushing iand the sleeve vhavingran
conicalmember, saidconnecting member having
extension projecting into thenotch of the other
bushing, said sleeve being fixedly mounted upon
the pinso .that as. one bushing is adjusted. axially
the vother .bushingtis adjusted in like manner.
its longitudinal axis 'positioned in aplane -deter
. 4. A driving mechanism for transmitting vari
mined by the Yaxes of ‘rotation of :the conical
ous 'movements to Vdriven means, said driving
mechanism including a ïpair of -variable speed
»members and .substantially.coincidental with» the
axis of rotation of the driving ring so as tofcause
driving imeans, eachfof ~said driving :meansin
2,404,907
9
cluding a pair of conical driving members, a
second pair of corneal driven members, one of
the conical members of each pair being adjusta
bly mounted for axial adjustment, a driving ring
for transmitting power from the conical driving
members to the conical driven members, a pair
of tubular bushings mounted for axial movement,
one of the tubular bushings being concentrically
disposed with respect to the conical driving mem
10
for interconnecting said bushings, said connect
ing means having arcuate cut-away portions on
one side centered on the center of rotation of
one pair of conical members and arcuate notches
on the opposite side centered on the center of
rotation of the other pair of conical members,
the cut-away portions on the connecting means
complementing the cut-away portions on the
bushings, so that the bushings are intercon
nected through said connecting means so that as
10
bers and located for axial adjustmentJ on one
one bushing is adjusted axially the other bushing
is adjusted in like manner.
6. A driving mechanism for transmitting vari
ous movements to driven means, said driving
side of the ring, the other tubular bushing being
coaxially disposed with respect to the conical
driven members and located on the opposite side
of the driving ring, each of the adjustable coni
cal members terminating in a tubular „sleeve 15 Ymechanism including a pair of variable speed
driving means, each of said drivingV means in
journalled in one of said bushings for axial ad
cluding a pair of conical driving members, a
justment therewith, said bushings being pro
second pair of conical driven members, one of
vided with notches opening so as to be directed
the conical members of each pair being adjusta
in the general direction of the axis of rotation of
the driving ring, connecting means provided with 20 bly mounted for axial adjustment, a driving
ring for transmitting power from the conical
extensions projecting into said notches, said con
driving members to the conical driven members,
necting means including a pin and a sleeve
a pair of tubular bushings mounted for axial
movement, one of the tubular bushings being
concentrically disposed with respect to the coni
cal driving members and located for axial ad
mounted upon the pin, said pin having an ex
tension projecting into one of the notches of one
bushing and the sleeve having an extension pro
jecting into the notch of the other bushing, said
sleeve being fìxedly mounted upon the pin so that
as one bushing is adjusted axially the other
bushing is adjusted in like manner, and means
justment‘l on one side of the driving ring, the
other tubular bushing being coaxially disposed
with respect to the conical driven members and
located on the opposite side of the driving ring,
each of the adjustable conical members ter
for axially adjusting the tubular sleeve upon the ,
pin to thereby adjust the relative distance be
minating in a tubular sleeve journalled in one
tween the bushings.
of said bushings for axial adjustment therewith,
said bushings being provided with arcuate
5. A driving mechanism for transmitting vari
ous movements to driven means, said driving
mechanism including a pair of variable speed . „ notches having a common center of curvature,
driving means, each of said driving means includ
ing a pair of conical driving members, a second
pair of conical driven members, one of the conical
members of each pair being adjustably mounted
for axial adjustment, a driving ring for trans
mitting power from the conical driving members
to the conical driven members, a pair of tubular
bushings mounted for axial movement, one of
the tubular bushings being concentrically dis
posed With respect to the conical driving mem
bers and located for axial adjustment on one side
of the driving ring, the other tubular bushing
cylindrical connecting means for interconnecting
said bushings, said cylindrical connecting means
including a pin having arcuate notches on one
side having a common center on the axis of ro
", tation of one set of conical members, an ad
justing sleeve mounted on the pin, said sleeve
having arcuate notches centered on the axis of
being coaxially disposed with respect to the
conical driven members and located on the op
posite side of the driving ring, each of the ad
justable conical members terminating in a tubu
lar sleeve journalled in one of said bushings for
axial adjustment therewith, said bushings being
provided with arcuate notches having a common
center of curvature, cylindrical connecting means 55
rotation of the other pair of conical members,
the portions between the notches on the pin
being seated in the notches of the adjacent
bushing, the portions between the notches on
the tubular sleeve being seated in the notches of
the other bushing, means for adjusting the tubu
lar sleeve on the pin to thereby adjust the dis
tance between the bushings, and means inter
connected to one of the bushings for shifting
-the bushings axially in unison to change the
relative speed of the conical members.
DAVID HANS HEYNAU.
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