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Патент USA US3069126

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Dec. 18, 1962
R. 1, WARD
3,069,116
EMERGENCY GENERATOR AND VACUUM PRODUCING MEANS FOR AIRPLANES
Filed June 19, 1961
2 Sheets-Sheet 1
INVEN TOR.
“WWW
ATTORNE)’.
Dec. 18, 1962
R. l. WARD
3,069,116
EMERGENCY GENERATOR AND VACUUM PRODUCING MEANS FOR AIRPLANES
Filed June 19, 1961
2 Sheets-Sheet 2
53366:‘
x 25 .~
22
W,
N
57.77747.
LOAD
J/
3”
VACUUM
‘7-77- 7?
BY
NVNVENTOR.
United States Patent 0
3,069,116
Patented Dec. 18, 1962
1
2
3,069,116
and no main impelling or driving means are illustrated,
as such means form no part of my present invention,
Richard I. Ward, Municipal Airport,
jected or use position and no retractable supporting means
therefor are illustrated.
EMERGENCY GENERATOR AND VACUUM PRO
DUCING MEANS FOR AIRPLANES
Three Rivers, Mich.
Filed June 19, 1961, Ser. No. 118,160
11 Claims. (Cl. 244—58)
also, the wheels 2 are conventionally illustrated in pro
The generator unit, designated by the numeral 3, is
shown conventionally and it comprises -a suitable hous
ing desirably of cylindrical cross section, the driving
This invention relates to an electric generator and
shaft 4 projecting therefrom and a driving impeller or
vacuum producing assembly for airplanes which is well 10 driving blades 5 mounted thereon and projecting for
adapted for emergency use.
wardly of the body member. The current conductor is
The principal objects of this invention are:
designated at 6 and it includes ?exible terminals 7 ex
First, to provide an air driven electric generator for
tending from the generator. As stated, the generator
airplanes well adapted for emergency use and which
is shown in its extended or use position in FIGS. 1 and
is mounted to be housed within the fuselage in non-use 15 3 and in retracted position by full lines in FIG. 1 and
position and to be projected therefrom for use.
in projected or use position by dotted lines. An open
Second, to provide an electric generator having these
ing 8 is provided in the bottom 9 of the fuselage, this
advantages which is readily installed in an airplane fuse
being desirably of T-shape, as is illustrated in FIG.
lage and occupies relatively little space therein.
4, and it is dimensioned to permit the free passage of
Third, to provide a combined generator and vacuum 20 the generator therethrough and the impeller blades 5.
producing unit which is projected to use position upon
The generator supporting standard comprises the ver
the withdrawal of a manually released detent and one
tically disposed body member 10 supported by the down
in which the detent may be ‘withdrawn by an operator
wardly and outwardly diverging legs 11 connected to
positioned at a distance from the unit, as ‘for example
the floor 9 at 12 and to the body member 10 at 13. Struts
25 or braces 14 connect these legs to the body member
by the pilot and simply by a pull on a cable.
Fourth, to provide a generating apparatus embodying
‘the above mentioned advantages which is located when
‘projected to use position so that it is not likely to be
damaged in the landing of the airplane while the gen
10 to support it in upright position. A tubular slideway
15 is ?xedly mounted on the support 10 and in the em
bodiment illustrated projects above the same.
In the embodiment illustrated the generator hanger
'er-ator is in its projected use position.
16 is also tubular and is a sliding ‘fit in the slideway
-Fifth, to provide a combined generator and vacuum
15. The hanger is provided with laterally projecting lugs
assembly which is compact and well adapted for emer
17 slidingly engaged in the slots 18 in the slideway to
gency use.
prevent rotative movement of the hanger and also to serve
Sixth, to provide a structure having these advantages
as stops which engage the bottom portion 19 of the
in which the supporting parts are entirely housed within 35 slots 18.
‘the airplane and in which there are no projecting parts
The coiled spring 20 disposed in the slideway above
when the apparatus is in non-use position.
the hanger coacts ‘with the weight of the generator to
Objects relating to details and economies of the inven
project it downwardly to use position as shown by
tion will appear from the description to follow. The
full lines in FIG. 1 and by dotted lines in FIG. 2. The
invention is de?ned and pointed out in the claims. A 40 generator is held in its retracted position by the spring
desirable embodiment of the invent-ion is illustrated in
actuated detent 21 which is reciprocatingly disposed
the accompanying drawing, in which:
.
through an opening at 22 provided therefor in the body
.IFIG. 1'is a side elevational view of an airplane, the
member 10 of the standard. This reciprocates and is
‘ body of which is mainly shown conventionally with the
further supported by an opening 23 provided therefor in
~ generator embodying my invention in projected position, 45 the slideway 15, see FIG. 5, and the hanger 16 is pro
the wiring and other conduits being omitted.
vided with an opening or hole 24 alignable with the open
FIG. 2 is a fragmentary side elevational view- with
ing 23 to receive the detent, as illustrated in FIG. 5,
the generator shown in retracted position by full lines
and in projected positionby dotted lines.
FIG. 3 is a fragmentary view in section on a line cor
which is urged to engaging position by the coiled spring
25 disposed in the bracket 26. The detent is disengaged
50 by a pull on the ?exible release member 27 which may
responding to line 3—3 of FIG. 2 with the generator unit
shown in‘ projected position by full lines.
'
'FIG. 4 is a fragmentary view in section on a line
be extended as indicated by dotted lines in FIG. 1 to
a position‘ to be manipulated by the pilot or someone
corresponding to line 5--5 of FIG. 2 illustrating means
weight plus the spring 20.
remotely positioned relative to the generator unit. With
corresponding to line 4—4 of FIG. 2, only fragments
this arrangement, all that is necessary to do to project
of the wiring and the vacuum conduit being illustrated. 55 the generator to use position is to disengage the detent
FIG. 5 is an enlarged fragmentary view on a line
and the generator is automatically projected by its own
for holding the generator in its retracted position.
FIG. 6 is a fragmentary view illustrating the opposite
In the- embodiment of my invention illustrated, a Ven
turi tube 28‘ is mounted on the side of the generator
relation of the auxiliary generator to the main generator 60 and a hose 29 is connected thereto. This is designed to
‘and the circuit of the airplane and the relationship of
be used in the event of failure of the vacuum pump,
the vacuum producing means to the generator body mem
the vacuum conduit being indicated at 30, the valve being
.
conventionally shown at 31, see FIG. 6, which also con
:FIG.‘ 7 is an enlarged fragmentary view of the closure
ventionally illustrates the electrical connections for the
’member for the opening provided for the projection and 65 generator 3 to the electrical system of the airplane, desig
retraction of the generator‘driving blades.
nated generally by the numeral 32.
It should be understood that in the accompanying draw
The opening 8 in the bottom of the fuselage is closed
ings certain of the parts are shown conventionally and
when the generator is in retracted position, the closure
that no attempt has been made to illustrate the dimen
member 33 being ?xedly mounted on the underside of
sions in relatively proportioned use relation, but that 70 the generator which closes the generally rectangular por
the drawings illustrate a functioning structure.
tion thereof. A supplemental closure member 34 is
,_The airplane body 1 illustrated is shown conventionally
hingedly mounted at 35 to enclose the portion of the
ber.
3,069,116
>
»
4
opening designed to receive the driving blades 5. This
closure member 34 is swingably mounted on the rod 351
and is yieldingly held in closed position by the spring
36, see FIG. 7, and this closure member 34 underlaps the
closure member 33, see FIG. 2, when in closed position
and it automatically closes when the generator is in pro
jected position.
3. The combination with an airplane fuselage having
an opening in the underside thereof, of an electric gener
ator unit including a housing and a driving shaft project
ing from said housing and having blades on its projecting
end, said opening in said fuselage being dimensioned to
permit the passage of said generator unit therethrough,
a generator support means comprising a vertically dis
It will be noted that the generator unit is guarded by
the wheels in the event of landing of the airplane with
posed tubular slideway having vertical slots therein, a
‘hanger for said generator ?xedly secured thereto and pro
conditions or requirements of variations in the fuselage
use position, a spring actuated detent reciprocatingly
mounted on said generator support means, said slideway
the generator in projected position. In the embodiment 10 jecting upwardly therefrom and reciprocatingly mounted
in said slideway and having lugs slidably engaged with
illustrated, the generator unit is manually adjusted to its
said slots in said slideway preventing rotative movement
retracted position shown by full lines in FIG. 2. As
of said hanger in said slideway, the bottoms of the slots
stated, various parts of the embodiment of my invention
constituting stops for said lugs limiting the downward
illustrated are conventionally illustrated, as they would
movement of the generator and supporting it in its lowered
probably be greatly varied to meet particular installation
of airplanes.
Having thus described the invention, what is claimed
and hanger having alignable keeper openings with which
said detent automatically engages when said generator
1. In combination with an airplane fuselage having a 20 unit is in retracted position, a coiled spring disposed in
said slideway above said hanger and acting to project said
bottom portion with an opening therein, of an electric
generator to use position when said detent is retracted.
generator unit including a housing and a ‘driving shaft
4. The combination with an airplane fuselage having
projecting ‘from the housing and having driving blades
an opening in the underside thereof, of an electric gen
on its projecting end, said opening in said fuselage bot
erator unit including a housing and a driving shaft pro
tom being dimensioned to permit the passage of said
jecting from said housing and having blades on its
generator unit therethrough, a generator supporting stand
projecting end, said opening in said fuselage being dimen
ard comprising a body member disposed within said fuse
sioned to permit the passage of said generator unit there
lage in vertically spaced aligned relation with said open
through, a generator support means comprising a verti
ing and downwardly diverging supporting legs therefor
connected to the fuselage bottom in laterally spaced rela 30 cally disposed tubular slideway having vertical slots
therein, a hanger for said generator ?xedly secured there
tion to said opening therein, a vertically disposed tubular
to and projecting upwardly therefrom and reciprocatingly
slideway supportedly mounted on said standard body
mounted in said slideway and having lugs slidably en
member and having aligned vertical slots therein, a hanger
gaged with said slots in said slideway preventing rota
for said generator ?xedly secured to and projecting up
tive movement of said hanger in said slideway, the bot
wardly therefrom and reciprocatingly mounted in said
as new and desired to secure by Letters Patent is:
slideway and having laterally projecting lugs slidably en
gaged in said slots in said slideway preventing rotative
toms of the slots constituting stops for said lugs limiting
the downward movement of the generator and supporting
end, said opening in said fuselage being dimensioned to
permit the passage of said generator unit therethrough,
reciprocatingly mounted on said slideway, said slideway
it in its lowered use position, a spring actuated detent
movement of said hanger in said slideway, the bottom of
reciprocatingly mounted on said generator support
the slots constituting stops for said lugs limiting the down
ward movement of said generator and supporting said 40 means, said slideway and hanger having alignable keeper
openings with which said detent automatically engages
generator in its lowered use position, a coiled spring dis
when said generator unit is in retracted position.
posed in said slideway above said hanger and acting to
5. The combination with an airplane fuselage having
project said generator to use position, and a spring actu
an opening in the underside thereof, of an electric gen
ated manually releasable detent reciprocatingly mounted
erator unit including a housing and a driving shaft pro
on said supporting standard, said slideway and said hanger
having alignable keeper openings for said detent when 45 jecting from said housing and having blades on its pro
jecting end, said opening in said fuselage being dimen
said generator unit is in retracted position.
sioned to permit the passage of said generator unit there
2. The combination with an airplane fuselage having
through, a generator support means comprising a verti
an opening in the underside thereof, of an electric gener
cally disposed slideway, a hanger for said generator ?xed
ator unit including a housing and a driving shaft project
ing from said housing and having blades on its projecting 50 ly secured thereto and projecting upwardly therefrom and
and hanger having coacting stops limiting the downward
movement of the generator and supporting it in its low
ered use position, a spring actuated manually releasable
posed tubular slideway having vertical slots therein, a
hanger for said generator ?xedly secured thereto and pro 55 detent mounted on said generator support means, and a
spring mounted on said slideway and acting to project
jecting upwardly therefrom and reciprocatingly mounted
said generator to use position when said detent is re
in said slideway and having lugs slidably engaged with
tracted.
said slots in said slideway preventing rotative movement
6. The combination with an airplane fuselage having
of said hanger in said slideway, the bottoms of the slots
constituting stops for said lugs limiting the downward 60 an ‘opening in the underside thereof, of an electric gen
a generator support means comprising a vertically dis
movement of the generator and supporting it in its lowered
use position, a spring actuated detent reciprocatingly
mounted on said generator support means, said slideway
erator unit including a housing and a driving shaft pro
jecting from said housing and having blades on its pro
jecting end, said opening in said fuselage being dimen
sioned to permit the passage of said generator unit there
said detent automatically engages when said generator 65 through, a generator support means comprising a verti
cally disposed slideway, a hanger for said generator ?xed
unit is in retracted position, a coiled spring disposed in
ly secured thereto and projecting upwardly therefrom
said slideway above said hanger and acting to project said
and reciprocatingly mounted on said slideway, said slide
generator to use position when said detent is retracted,
way and hanger having coacting stops limiting the down
a closure member mounted on said generator unit for
closing the portion of the opening in said fuselage through 70 ward movement of the generator and supporting it in
its lowered use position, and a manually releasable de
which the body portion of said generator is reciprocable,
tent mounted on said generator support means.
and a downwardly opening supplemental closure member
7. The combination with an airplane fuselage having
mounted on said body member to close the portion of the
and hanger having alignable keeper openings with which
an opening in the underside thereof, of an electric gen
opening provided in the fuselage bottom for said generator
75 erator unit including a housing and a driving shaft pro
blades.
is
3,069,116
5
6
jecting from said housing and having blades on its pro
projecting inwardly therefrom and nonrotatably and re
jecting end, said opening in said fuselage being dimen
ciprocatingly mounted in said slideway, a manually releas
sioned to permit the passage of said generator unit there—
able detent mounted on said slideway and engageable
through, a generator support means comprising a
With said hanger for holding said hanger in its retracted
vertically disposed slideway, a hanger for said generator
position, and closure means for said opening in said fuse
?xedly secured thereto and projecting upwardly there
lage, said closure means being automatically opened by
‘from and reciprocatingly mounted on said slideway, said
the projecting of said generator to use position.
slideway and hanger having coacting stops limiting the
10. The combination with an airplane vfuselage having
downward movement of the generator and supporting it
anopening in the [wall thereof, of an electric generator
in its lowered use position, a spring actuated manually 10 unit including a housing and a driving shaft projecting
releasable detent mounted on said generator support
from the housing and having a generator driving blade
means, a spring mounted on said slideway and acting to
on its projecting end, a generator supporting means com
project said generator to use position when said detent
prising a slideway supportedly mounted in said fuselage,
is retracted, and a closure member mounted on said gen
a hanger for said generator ?xedly secured thereto and
erator unit for closing the portion of the opening in 15 projecting inwardly therefrom and nonrotatably and re
said fuselage through which the body portion of said
ciprocatingly mounted in said slideway, an automatically
generator is reciprocable, and a downwardly opening
engageable spring actuated manually releasable detent
supplemental closure member mounted on said body
mounted on said slideway and engageable with said
member to close the portion of the opening provided in
the fuselage bottom for said generator blades.
8. The combination with an airplane fuselage having
rI ;-f,
hanger for holding said hanger in its retracted position,
and a spring disposed on said slideway in coasting rela
tion to said hanger and acting to project said generator
an opening in the wall thereof, of an electric generator
to use position.
unit including a housing and a driving shaft projecting
ll. The ‘combination with an airplane fuselage having
from the housing and having a generator driving blade
on its projecting end, a generator supporting means com 25 an opening in the wall thereof, of an electric generator
unit including a housing and a driving shaft projecting
prising a slideway supportedly mounted in said fuselage,
from the housing and having a generator driving blade
a hanger for said generator ?xedly secured thereto and
on its projecting end, a generator supporting means com~
projecting inwardly therefrom and nonrotatably and re
prising a slideway supportedly mounted in said fuselage,
ciprocatingly mounted in said slideway, an automatically
engageable spring actuated manually releasable detent 30 a hanger for said generator ?xedly secured thereto and
projecting inwardly therefrom and nonrotatably and re
mounted on said slideway and engageable with said
ciprocatingly mounted in said slideway, and a manually
hanger for holding said hanger in its retracted position,
releasable detent mounted on said slideway and engage
a spring disposed on said slideway in coacting relation
able with said hanger vfor holding'said hanger in its re
to said hanger and acting to project said generator to use
position, and closure means for said opening in said‘ 35 tracted position.
fuselage, said closure means being automatically opened
References Cited in the ?le of this patent
by the projecting of said generator to use position.
9. The combination with an airplane fuselage having
UNITED STATES PATENTS
an opening in the wall thereof, of an electric generator
unit including a housing and a driving shaft projecting 40
from the housing and having a generator driving blade
on its projecting end, a generator supporting means com
prising a slideway supportedly mounted in said fuselage,
a hanger for said generator ?xedly secured thereto and
1,733,891
2,177,801
2,977,071
Loudy ______________ __ Oct. 29, 1929
Erren _______________ __ Oct. 31, 1939
Plotkowiak __________ __ Mar. 28, 19611
‘911,695
Germany ____________ __ May 17, 1954
FOREIGN PATENTS
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