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Патент USA US2406273

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Aug. 20, 194s.~
P. M. 'WAITE
2,406,273
7 THROTTLE CONTROL
Original Filed .Dec. 22, 1941
4 Sheets-Sheet 1
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Aug- 20,1946'
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P. M. WAITE
THROTTLE
'_
CONTROL
Original Filed Dec. '22, 1941
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2,406,273
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4 Sheets-Sheet 2
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Aug. 20, 1946.
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2,406,273
THROTTLE CONTROL .
Original Filed Dec. 22, 1941
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Aug. 20, 1946.
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' THROTTLE CONTROL
Original Filed Dec. 22, 1941
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Patented Aug. 20,, 1946
2,406,273
‘UNITED STATES PATENT‘ OFFICE
2,406,273 ,
THROTTLE CONTROL ‘
'
Philip M. Waite, Corry, Pa.
Continuation of application Serial N0."424,080,
December 22, 1941. This application July 26,
1944, Serial No. 546,643
15 Claims.
(Cl. 74—471)
1
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This invention relates to controlling devices for
2
In the drawings:
Figure 1 is a detail front elevation, partly
airplane engines, and is a continuation of my 00
pending application, Serial No. 424,080, ?led De
cember 22, 1941, for Throttle control.
broken away, of a throttle control constructed
according to an embodiment of this invention.
Figure 2 is a sectional view taken on the line
An object of this invention is to provide a con
trolling means including a main controlling lever
2-2 of Figure 1,
Figure 3 is a sectional view taken on the line
and additional levers for operating the additional
3—3 of Figure 2,
levers after the ?rst lever has been shifted.
Figure 4 is a fragmentary sectional view simi
Another object of this invention is to provide 10 lar to Figure 3, but showing the control in the
with lost motion means associated with the lever '
in a device of this kind a main or throttle con
. opposite or open position,
trolling lever and an operative connection be
tween this lever and another lever, whereby the
Figure 5 is a detail side elevation of one of the
lever operators,
‘
other lever will be actuated after the ?rst lever
Figure 6 is a detail side elevation of another of
has been initially moved a predetermined dis 15 the lever operators,
7
tance and the other lever will have the movement
V Figure '7 is a detail side elevation of one of the
thereof accelerated after the other lever has
spacing washers,
’
moved a predetermined distance.
Figure 8 is a fragmentary side elevation, partly ‘
' A further object of this invention is to provide
broken away, of one of the control levers,
'
a device of this kind which is adapted to be 20
Figure 9 is a fragmentary vertical section of a
mounted in airplanes so that the operator or '
modi?ed form of this invention,
pilot of the airplane can regulate the speed of
one or more engines by a single controlling device.
A further object of this invention is to provide
lll—lil of Figure 9,
Figure 10 is a sectional'view taken on the line
1 , Figure-11 is a detail side elevation of the ratche
in a device of this kind a controlling means .25 embodied in the form shown in Figures 9 and 10,
whereby the supercharger associated with the if‘, I Figure 12 is a fragmentary vertical section of
engine will be actuated after the main throttle
has been operated a predetermined degree and
initially the supercharger control will move at the
a further modi?cation of this invention, and
Figure 13 is a sectional view taken on the line
same speed as the main throttle control, but will 30
Referring to the drawings, and ?rst to Figures
1 to 8 inclusive, the numeral l5,designates gen
have the movement thereof accelerated prior to
l3—l3 of Figure 8.
'
the time that the main control is in a fully open
erally a frame‘structure including a rear sub
position.
stantially sector-shaped frame member 16 and a ’
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A further object of this invention is to provide
in a device of this kind means whereby the posi 35
tion of the additional levers with‘respect to the 2?:
main throttle lever may be adjusted to any de
sired point so that the time of the movement of
the additional lever or levers may be varied within
a
front frame member I‘! of substantially sector
shape. A cylindrical hub 18 is ?xedly mounted
in the frame I5 being threadedinto a central
plate !9 which constitutes a clamping plate and
is formed at its center with a boss 20.
The rear
frame member i6 is formed witha body 2| hav
predetermined range.
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40 ing an opening 22’ within which the rear end of
A further object of this invention is to pro- ; '3 the hub 13, engages. The body 2| is also formed
vide a controlling means of this kind which can
be incorporated in certain portions of the present
with a rabbet or annular recess 23 within which
the outer annular flange 24 of the plate I9 en
7 throttle controlling structure so that the improved
gages. The frame member I‘! is also provided
or accelerated controlling means may be used as 45 with a body 25 having an opening 26 therein
an attachment or substitute for the present con
within which vthe forward end of the hub I8
trolling means,
engages.
.
To the foregoing objects and to others which
The two frame members I6 and I1 are of like
may hereinafter appear, the invention consists
construction and each frame member is provided
of the novel construction, combination and ar 50 with a pair of upwardly divergent arms 21 and
rangement of parts as will be more speci?cally v 23 extending from the bodies 2| and 25 thereof,
referred to and illustrated in the accompanying
and an upper longitudinally arcuate connecting
drawings, wherein are shown embodiments of the
bar 29 connects the upper ends of the arms 21
invention, but it is to be understood that changes,
and 28together. A main throttle or engine con
variations and modi?cations may be resorted to 55 trolling lever generally designated as so is rock
which fall within the scope of the invention as
ably mounted‘ on the hub I8 and includes an an
claimed.
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nular hub engaging member 3| provided with a
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2,406,273
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downwardly extending arm or lever 32 formed
with a plurality of openings 33 to which the con
A rear lever generally designated as 60 is rock
ably mounted on the hub l8 rearwardly of the
necting elements are adapted to be secured._. The
lever 30 also includes an upwardly extending arm
or lever member 34 provided with an obtusely
bent upper portion 35 having a knob 36 on the
‘ upper end thereof. A stationary washer 31 is
disposed on the forward side of the hub or an
nulus 3| and, as shown in Figure '7, is provided
lever 30. The lever 60 includes an annular hub
6| which is rotatably mounted on the stationary
hub l8 and also includes a radially disposed lever
arm 62 terminating at its upper end in an obtuse
ly and forwardly bent extension 63. The exten
sion 63 at its upper terminal end has a knob 64
mounted thereon. A'friction washer B5 is mount
with an outwardly extending ear 38 having ‘a '10 ed on the hub |3 and bears at its forward side
against the rear side of the hub 3| of the lever
notch 39. The notch 39 is adapted to receiveja
33. The friction washer 65 is similar in every
frame holding bolt 40 extending through the low
detail to the friction washer 31. An annular
er portions of the frame members [6 and I1 so
spacing member 66 is rotatably mounted onthe .
that the washer or wear member 31 will be held
hub I8 bearing at its forward side against the rear
side of the friction washer 65. A friction washer
6'! is interposed between the rear side of the van
nular spacing washer 66 and the forward side
of the hub 6| of the lever'60.
erally designated as 43,‘ is rotatably mounted on
the hub l8 and includes a central ring-shaped 20 A rear friction washer 68 bears against the rear
side of the hub 6| of the lever 60 and also bears
hub 44 provided with a downwardly extending
against the forward side of a rear spacing wash
radial arm 45. The arm 45 is apertured similar
er 69. The rear spacing washer 69 at its rear
to the arm 32 in order to permit attachment of
side bears against the forward side of the sta
connections from the desired element controlled
by movement of the lever 43. The lever 43 also 25 tionary frame member 2|. The spacing member
66 is formed with an annular ?ange 1|] interme- '
includes an upwardly extending radial arm 46
diate the forward and rear ends thereof, and an
which is formed with a forwardly or obtusely bent
annulus ‘H is mounted on the spacing member
extension 41 disposed upwardly and outwardly
66 and bears against the forward side of the ?ange
of the frame structure I5. The upper terminal
' end of the extension 41 has a knob 48 mounted 30 13. The annulus 1| is ?xed relative to the rotat
able spacing member 66 by means of one or more
thereon to facilitate movement of the lever 43.
rivets or fastening members 12 which engage
A forward friction washer 49 is mounted on the
through the ?ange 10. The annulus 1| has
hub |8 bearing against the forward side of the
formed integral therewith a radially extending
annular hub 44 of the lever 43, and a spider;
shaped spring member 50 is adapted at its outer 35 plate 13 which is formed with a V-shaped cam
against rotation relative to the hub 3|.
7
A rotatable spacing ring 4| is rotatably mount
ed on‘ the hub l8 and is provided with an annu
lar ?ange 42. A second or forward lever, gen
end portions to bear against the forward side of
track 14.
7
An accelerating lever 15 is rockably mounted
the friction washer 49. The washer 49 is simi
on a pivot member 16 which engages the lever
lar in construction to the washer 31 shown in
30, and the accelerating lever 15 is provided ad
more detail in Figure '7.
The spider 50 is mounted on a stationary axial 40 jacent the opposite ends thereof with rearwardly
extending rollers or studs 11 and 18. The stud
1y disposed shaft or bolt 5| which is threaded at
or roller 18 is adapted to engage within the cam
its rear end in the boss 2|]. A spider tensioning
track 14, as shown 'in'Figure 2. In order to pro
nut 52 is threaded on the forward end of the bolt
vide a means whereby the plate 13 with the an
5| andbears against the spider 50 so that ad
justment of the 'nut 52 will provide the desired‘
tension against the forward washer 49 and against
the other elements mounted on the hub l8. 'By
providing the washer 31 stationary and the wash
nulus or hub 1| may be rotated'in an accelerated
movement through a portion of the movement of
the lever 30', I have provided a, pair of stop or
abutment members 19 and 80 which are ?xed to
a longitudinally arcuate connecting bar 8|. When
er 49 also stationary, the two levers 30 and 43
may be frictionally held against movement and 50 the lever 30 is moved clockwise, the roller or
stud 11 will strike the abutment or stop 19 so
at the same time movement of the lever 30. will
that'additional forward movement of the lever
not effect a similar movement of the'lever 43,
3|] will cause the lever 15 to rock on the pivot
except as hereinafter ‘described.
16 whereupon the roller or stud 18 engaging with
In order to provide a means ‘whereby the for
ward lever 43 may be partially rotated through 55 in the cam track 14 will swing the plate 13 for
wardly in an accelerated movement. The posi
a lost motion connection with the lever 30, I
tion of the pivot 16 with respect to the two rollers
have provided an annulus 53 which'is mounted
11 and 18 will determine the degree of either
on the spacer 4| rearwardly of the ?ange 42. The
acceleration or deceleration of the plate 13 with
annulus 53 has ‘formed integral therewith an up
wardly extending sector-shaped body 54 ‘which 60
respect to the lever 30.
’
An annular member 82 is mounted on the
is formed in its upper ‘edge with an elongated
spacer 63, bearing against the rear side of the
longitudinally curved recess 55. The opposite
flange 10 and the rivets or fastening members 12
ends 56 and 51 of the recess 55 form abutments
which are adapted to be engaged by a forwardly
engage through the annulus 82 so as to hold the
extending stud 58 ?xed to the lever member 34 65 annulus 82 against rotation relative to the spacer
within the frame [5. The stud 58 is movable
E8. The annulus 82 constitutes a ratchet mem
her, being provided with a plurality of ratchet
through the length of the recess 55, but when
the stud 53 reaches either the abutment 56 or
teeth 83. The annulus 82 is also formed with a
pair of outwardly extending stop members or
the abutment 51, the lever operating member 54
will rotate with the remaining movement of the 70 abutments 84 and 85 at opposite ends of the teeth
lever 33. The annulus 53 is ?xedly secured rel
. 33, as shown in Figure 1. The abutments 84 and
85 provide a means whereby a toothed dog 86
ative to the hub or annulus “of the lever- 43
bers 59 which engage through the annulus 53,
which is pivotally mounted on a pivot 81 is lim
ited in its circumferential adjustment with re
the'?ange42 and also the annulus 44.
spect to the ratchet structure 82. The dog 86 is
by means .of one or more rivets or fastening mem
2,406,273
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mounted on the lever 69, as shown in Figure 8,
and is constantly urged to a ratchet engaging
position by means of a spring 88 having an end
portion thereof anchored or ?xed in a notch 89
formed in the lever 69.
1
The roller'18a ‘engages within a cam track 14a ‘
of an accelerating member 138 similar’ to the
member 13, shown in Figure 6, and the roller 11‘?
extends above the member 138‘ for engagement
The dog 86 is manually rocked to a releasedpo
sition to permit adjustment of the lever 69 with
with either of the abutments or lever operating
members 19 and 89, shown in Figure 3.
The hub 1Ia of the accelerator member 13a is
respect to the ratchet 82 by means of a dog re
mounted on a spacer member 69a which is rotat
leasing lever 99 which is pivotally mounted on av
able on the hub I 8a and bears against a ?ange
pivot 9| engaging through the lever 69 adjacent 10 "I9a formed integral with the spacer member 663.
the upper end portion thereof. A ?exible con
A ratchet member H5 is mounted on the spacer
necting member 93 is connected at its upper end,
member 66a and bears against the forward side
as at 94, with the lever 99 and is connected as at
of the ?ange 19a. The ratchet member H5 is
95 with the dog 86. A spring 96 engages against
provided with ratchet teeth H6 and a pair of
the knob 64 being seated in a recess 91 formed 15 abutments or stop members H1 and H8 for lim
in the knob 64 and bears at its outer end against
iting the circumferential adjustment of the ad
the lever 99. The connecting member 93 is pref
justing dog II9 which is pivotally carried by the
erably in the form of a ?exible wire and is sub
rear side of the intermediate lever H3. The ad
stantially embedded within the lever 69. Prefer
justment of the dog H9 is effected in a manner
ably, the lever 69 is formed with a longitudinally 20 similar to the adjustment of the dog 86. A pair
extending ‘channel 98 along one edge thereof
of friction washers I29 and I2I are disposed in '
within which the connecting member 93 loosely
opposite sides of the hub 3 Ia of the lever 39a and
engages. In practice, the adjacent edge of the
are constructed identical with the friction washer
lever 69 and the forward side of the frame mem
31 shown in Figure '1. A rear spacing member
ing groove and the outer edges of the lever 69
I22 is interposed between the forward side of the
on opposite sides of the groove are then bent in
wardly as at 99 so as to close the groove and
form the closed channel 98. The lever 69 ad
rear frame member I69 and the washer I29. The
spacing member 6621 bears against the forward
side of the friction washer I 2I. The intermedi
ate lever II3 is provided with an annular hear
is formed with a cutout I99 and the lever 69 ad 30 ing or hub I 23 rotatably engaging 0n the hub
jacent the dog 86 is also formed with a cutout
His, and a pair of friction washers I24 are inter
jacent the upper end portion of the channel 98
I9I.
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In order to‘provide a means whereby the levers
posed between the rear side of the bearing ‘I23
and the forward side of the spacing member 66“.
39, 43 and 69 may be slidably maintained within
A friction washer I25 is also mounted on the hub
35
the frame I5, a pair of friction bars I92 and I93
I8“ and bears against the forward side of the
are disposed on opposite sides of each of the levers
bearing member I23. A spacing washer or ring
and are longitudinally curved similar to the bar
I26 is rotatably mounted on the hub I8‘1 and. bears
8I. A spacer bar I94 is interposed between the
at its rear side against the friction washer I 25.
rear side of the frame member I1 and the fric
The spacing member I26 is provided with an an
tion bar I92, and a spacer bar I95 is interposed 40 nular ?ange I21, and an annulus I28 is mounted
between the spacer bar I93 and the adjacent bar
on the spacer I26 and bears against the rear side
I92 on the forward side of the lever I93, A spacer
of the ?ange I21. The ratchet member H5 is
bar I91 is also interposed between thespacer bar
provided with a pair of diametrically opposed
I93 associated with the lever 39 and the spacer
forwardly offset ears I29 and the annulus I28 is
bar I92 associated with the lever 69. A rear 45 also provided with a pair of rearwardly offset
spacer bars I94, I95, I95, I91 and I98. The lower
ears I3. The ears I29 and I39 are connected
spacer or friction bar I 93 associated with the
together by means of fastening members I3I in
lever ‘59 is formed with a longitudinally extend
the form of rivets or the like so that the an
ber I6.
nulus I28 will rotate with the ratchet member
A pair of bolts I99 extend through the upper 50
opposite portions of the frame members I6 and
The annulus I28 is ?xed relative to the spacing
I1 and also engage through the opposite end por
‘ member I26 by means of one or more fastening
tions of the spacer members I92 and I93 and the
members I32 in the form of rivets which extend
spacer bar I98 is interposed between the rear
through the annulus I28 and the ?ange I21 as
portions of the frame I5 are connected together 55 shown in Figure 10. A ratchet member 82*‘
by means of lower bolt members I I9 and I I I. The
which is identical with the ratchet 82 is mounted
hub member I8 at its forward end is provided
on the spacing member I26 and bears against the
with a plurality of slots II2 within which the
forward side of the ?ange I21. The ratchet
arms of the spider 59 loosely engage so that the
member“ 82a is ?xed relative to the ?ange I21
adjustment of the nut 52 will place the desired 60 and also relative to the ratchet member II5 by
pressure upon ‘the friction washers and spacers
the rivets I32 which extend through the ?ange
engaging about the hub I8.
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I21, the annulus I29‘ and also the ratchet member
82*‘. A spring-pressed pivoted dog I33 which is
Referring now to Figures 9, 10 and 11, there is
similar in every detail to the dog 86 is pivotally
disclosed a modi?ed form of this invention
wherein the frame structure I53 is similar to the 65 mounted on a pivot member I34 carried by the
lever H4. The dog I33 is manually rocked
frame structure I5 and a cylindrical stationary
upwardly to a ratchet disengaging position by
hub I8a is mounted within the frame structure
I58“. A throttle lever or controlling member 39a
a lever similar’ to the lever 99, shown in Fig
ure 8.
"
is rockably mounted on the hub I 88L and addi
tional levers I I3 and H4 are rockably mounted
A‘ friction washer I35 is mounted on thehub
on the hub I8a forwardly of the lever 39a. The
I 8a and bears against the forward side of the
ratchet 82a. The lever H4 is provided with an
lever 39a is constructed identical with the lever
annular bearing member or hub I36 rotatably
39, being provided with a pivoted accelerating
engaging on the hub I88, and a forward friction
lever 15,1 which has mounted on the adjacent op
washer I31 is mounted on the hub I82* and bears
posite ends thereof rollers or studs 11a and 18a.
2,406,273‘
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in their operation in the same manner as the:
construction shown in Figures 1 to 8 inclusive.
against the forwardside of the bearing or hub
I36. The. several friction washers I20, I»2I, I24,
I35 and‘ It? are similar in every detail to the
friction washer 3? shown in- Figure 7; A spider
"shaped- tensioning member 513?1 is mounted on a
vWhat is claimed is:
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1. An engine control comprising a frame, a
bolt 5! a and is tensioned by means of a nut 52%.
Referring now to Figure 12, there is disclosed .
a further modi?cation of this invention which
'main lever pivotally carried by said frame, a.
second lever pivotally carried by said frame, a
lever accelerating means carried‘ by said main
lever, means ?xed relative to said frame engage;
able with said accelerating means for‘ effecting
relates solely‘ to the accelerator lever or member.
operation of said accelerating means upon move
As shown in Figure ‘12, the accelerator member
I38 is, formed with an elongated opening I39
ment of‘ said main lever, and means ?xed rela
tive to said second lever engageable with said
which. is radial with respect to the annular hub
accelerating‘ means for effecting accelerated
M0 of the accelerator member I38 and a roller
MI carried by one end of. an accelerator lever
movement of said second lever upon operation
I42 engages within the opening or slot I39. The 15 of said accelerating means by said second means.
lever I39 is pivotally mounted as at M3 on a
2;. An engine control comprising a frame, a
throttle lever I44 similar to the lever 30. The
lever pivotally carried by said frame, a secondv
opposite end of the lever I42 is provided with a
lever pivotally carried by said frame, and ‘an
roller I745 which is adapted to engage a pair of
accelerating means for effecting accelerated
abutments I46 and I41‘ formed'in the opposite 20 movement of said second lever upon movement
ends of a'longitudinally arcuate spacer bar M8.
of said ?rst lever, said accelerating means in
Itv will be apparent from the foregoing that the
cluding a pivoted member carried by said ?rst
shape of the cam track, which in Figure 6 is
lever, means ?xed relative to said frame for‘
shown as of substantially triangular con?gura
rocking said member upon movement of said?‘
tion and in Figure 12' as an elongated slot, may
?rst lever, and means ?xed relative to said sec-i '
be varied to provide for the desired lost motion
0nd lever engageable with said member for effect- .
between the main ‘controlling lever and the asso
ing accelerated movement of said second lever‘
ciated levers which are to. be accelerated in their
upon rocking of said member.
movement with the main lever.
.
‘
3. An engine control comprising a frame, a
In the use and. operation of this control means, 30 lever pivotally carried by said frame, a second
the main throttle or controlling lever 38 may
lever pivotally carried by said frame, and an ac‘
be initially disposed, in the forward position as
celerating means for e?ecting accelerated move
shown in. Figure 3. When it is desired to acce1er~
ment of said second lever upon movement of said
ate. the. engine, the lever 3a is rocked counter
?rst lever, said accelerating means including a
clockwise or to. the left as shown in Figure 3.
pivoted member carried by said ?rst lever, means’
During the initial'rocking of the lever 39 me
counterclockwise movement, the. accelerating
?xed relative to said frame for rocking said mem.ber upon movement of said ?rst lever, and means
?xed relative to said second lever engageable
lever or kicker 15 will rock counterclockwise at
its. upper end without movement of the acceler
ating member 13.. As the lever 39 is rocked fur
ther in a counterclockwise. movement, the accel
with said member for effecting accelerated move
40 ment of said second lever upon rocking of said
member, said latter means being so» correlatedv
with said member as to provide for initial move
same speed for a. portion of. the additional rock
ment of said ?rst lever without‘ movement of
ing of the lever 30.
»
said second lever and initial movement of said
When. the roller or stud ‘H strikes the abut 45. second lever at the same speed as said ?rst lever
ment or cam 39., the accelerating lever or kicker
with ?nal- movement of said second lever at a‘
75 will be rocked thereby effecting an. increase
greater speed than the movement of said ?rst
in‘the rotary movement of the accelerator mem
lever.
.
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, her 13. As the lever 60. is ?xedly connected with
,4. An engine control comprising a frame, a
the accelerating member ‘I3 through the dog 86
lever pivotally carried by said frame, a second
and the ratchet 82, the lever 60 will have the
lever pivotally carried by said frame, a swingable
rocking movement thereof increased during the
operator for said second lever pivotally carried
latter portion of the rocking movement of the.
by said ?rst lever, a part pivotally carried by said
main lever 38.
V
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- a
frame engageable with said operator for rotat
At the same time that the lever 38 is being
ing said part with at least a portion of the swing
rockedrearwardly, the forward. lever 43 will be
ing of said ?rst lever, a ratchet ?xed relative to
rocked in a counterclockwise movement. The
said part, and a spring pressed dog carried by
lever £23 on its forward side has ?xed thereto the
said second lever engaging said ratchet for hold
stud 58 which engages within the arcuate recess
ing said second lever in circumferentially ad
or notch 55701;" the plate as. When the stud 58‘
justed position relative to said part.
, crating member 13 will move therewith at the.
strikes the abutment 51, the plate 54 will rotate
. 5.. An engine control. comprising a frame, a’
at the same speed. as the lever 3.9. The length
of the recess or notch 55. in the plate 54 will
determine the extent of the lost motion between
the. plate 54 and the lever 3!]. As the lever 43
lever pivotally carried by said frame, a pair of
levers also pivotally carried by said frame, means
correlated with said frame, said ?rst. lever and
is ?xedly connected with the plate 54 when the
plate 54. rocks on the hub I8, the lever 43 will
also. rock therewith and at the same speed as the
remaining rocking movement of the lever 30.
, With the construction shown, in Figures 9, 10 .
and 11, it will be apparent that a number of
additional levers may be connected with the ac
celerated lever operated by the lever 3% so that
a number of engines may be controlled from the
mainthrottle lever, and these engines accelerate
~w one lever of said -p‘air of levers providing a differ
ential movement relative to said ?rst lever and
said one lever, means connecting said pairof
levers together, said connecting means includ
ing means whereby the other lever of said pair
of levers may be adjusted relative to said one
lever.
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, 6. An engine control. comprising a frame, a
lever pivotally carried by said frame, a pair of
lovers also pivotally carried by said. frame, means
correlated with said frame; said?rst; lever. and.
2,406,273
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one of said pair of levers providing a differential
determined distance in one direction, and means -
movement relative to said ?rst lever and said one
?xed relative to said second lever engageable
with the opposite end of said operator whereby
lever, means connecting said pair of levers to
gether, said connecting means including means
whereby the other of said pair of‘ levers may be
said ?rst lever will initially move in one direc
tion without. movement of said second lever, and
whereby subsequently said ?rst and second levers
adjusted relative to said one lever, and means
for adjusting said one lever relative to said ?rst
lever and to said other lever.
7. An engine control comprising a frame, a
rockable controlling lever carried by- said frame
and movable in one direction to increase engine
speed and movable in the opposite direction to
decrease engine speed, a second rockable lever,
a common pivot for said levers and correlated
means carried by said frame and said levers for
effecting accelerated movement of said second
will move at the same speed and in the same
direction, said latter means upon engagement of
said operator with said part effecting accelerated
movement of said second lever in the same direc
tion as the movement of said ?rst lever.
12. An engine control comprising a frame, ‘a
rockable controlling lever carried by said frame
and movable in one direction to increase engine
speed and movable in the opposite direction to de
crease‘engine speed, a second rockable lever, a
common pivot for said levers, correlated means
carried by said levers, so constructed and ar
lever in the same direction as and upon the
movement of said controlling lever during a por
tion of the movement of said controlling lever
ranged that said ?rst lever will initially move
in either direction.
20 in one direction without movement of said second
8. An engine control comprising a frame, a
lever, said means effecting subsequent movement
rockable controlling lever carried by said frame
of said second lever at the same speed as said
and movable in one direction to increase engine
?rst lever with said ?rst lever in advance of said
speed and movable in the opposite direction to
second lever and means engageable with said
decrease engine speed, a second rockable lever,
?rst means for effecting movement of said sec—
a common pivot for said levers, correlated means
ond lever at an accelerated speed with respect
carried by said levers for effecting delayed move
to said ?rst lever during the ?nal movement of
ment of said second lever with movement of
said ?rst lever.
said ?rst lever in either direction during a por
13. An engine control comprising a frame, a
tion of the movement of the latter, and means 30 rockable controlling lever carried by said framev
carried by said frame engageable with a portion
and movable in one direction to increase engine
of said first means for effecting accelerated move
speed and movable in the opposite diretcion to
ment of said second lever during another por
decrease engine speed,’ a second rockable lever,
tion of the movement of said ?rst lever in either
a common pivot for said levers, correlated means
direction.
~
35 carried by said levers so constructed and ar
9. An engine control comprising a frame, a
ranged that said ?rst lever will initially move
rockable controlling lever carried by said frame
in either direction without movement of said
and selectively movable in opposite directions, a
second lever, said means effecting ‘subsequent
second rockable lever carried by said frame, a
movement of said second lever at the same speed
common pivot for said levers, correlated means 40 as said ?rst lever with said ?rst lever in advance
carried by said levers for effecting a delayed
of said second lever and means engageable with
movement of said second lever at the same speed
said ?rst means for effecting movement of said
and in the same direction as said ?rst lever, and
second lever at an accelerated speed with vrespect
stationary means carried by said frame engage
to said ?rst lever during the ?nal movement of
able with said ?rst means for effecting an in
said ?rst lever.
crease in the speed of said second lever after said
14. Acontrol device comprising a frame, a main
?rst and second levers have moved a predeter
lever pivotally carried by said frame and hav
mined distance at the same speed.
ing selective clockwise or counter-clockwise
10. An engine control comprising a frame, a
movement, a secondary lever pivotally carried
controlling lever rockably carried by said frame,
by said frame, a common pivot for said levers,
a second lever rockably carried by said frame,
and means, including at least a portion pivot
an elongated operator for said second lever,
ally carried by said frame, correlated with both
means pivotally mounting said operator between
of said levers to provide a lost motion between
the ends thereof on said ?rst lever, a part ?xed
said ‘secondary lever and the main lever in at
to said frame engageable with one end of said
least one phase of movement of said main lever
operator whereby to swing the opposite end of
in either direction and for effecting differential
the latter inwardly toward the axis of said sec
movement of said secondary lever with respect
ond lever after said ?rst lever has moved a pre
to said main lever in another phase of move
determined distance in one direction, and means
ment of said main lever in the same direction,
?xed relative to said second lever engageable 60 said secondary lever moving in the same direc
with the opposite end of said operator whereby
tion as said main lever in either ‘the clockwise
inward swinging of said opposite end of said op
or counter-clockwise movement of said main
erator will effect accelerated movement of said
lever said correlated means effecting equal move
second lever in the same direction as the move
ment of said ?rst lever.
7
11. An engine control comprising a frameha
controlling lever rockably carried by said frame,
a second lever rockably carried by said frame,
an elongated operator for said second lever,
means pivotally mounting said operator between
ment of said secondary lever in the same direc- ,
65 tion as and with saidfmain lever in a second
phase of movement of said main lever, and said
correlated means including a ?xed part carried
by said frame for effecting differential movement
of said secondary lever in the same direction as
and with said main lever in a third phase of the
the ends thereof on said ?rst lever, a part ?xed 70 movement of said main lever.
‘
to said frame engageable with one end of said
15. A control device as set forth in claim 14 in
which said correlated means includes a rockable
operator whereby to swing the opposite end of
the latter inwardly toward the axis of said sec
ond lever after said ?rst lever has moved a pre
cam element.
76
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'
PHILIP M. WAI'IE.
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