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Патент USA US2412158

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Dec. 3, 1946.
N. ‘V. KUEHLMAN .ET AL
2,412,158
vAIRFLANE LOADING AND-SERVICE VEHICLE
:5 sheets-sheet 1
Filed Feb.‘ 14, 1944.
Dec. '3, 1946.
‘
N; v. KUEHLMAN ET AL‘
AIRPLANE
LOADING
AND
SERVICE
Filed Feb, 14,v 1944
VEHICLE
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' 2,412,153
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3 Sheets-Sheet 2
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' Dec. 3, 1946. 1
N. v. KUEHLMAN ET AL
" 2,412,153v
' AIRPLANE LOADING AND SERVICE VEHICLE.
Filed Feb. 14, '1944
SYSheetS-Sheet s
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.hr/HWJIE ‘“Bl!
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\
' INVENTORS
W
2,412,158
Patented Dec. 3, 1946
UNITED STATES PATENT OFFICE
2,412,158 ‘
AIRPLANE LOADING AND SERVICE
VEHICLE '
'
Norman V. Kuehlman, Milwaukee, and Henry 0.
French, Elm Grove, Wis., assignors to The Heil
00., Milwaukee, Wis., a corporation of Wiscon
sin
Application February 14, 1944, Serial No. 522,402
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(01. ‘214-75) '
22 Claims.
2
1
provide a loading vehicle, as above described,
This invention relates to improvements in air
plane loading and service vehicles.
Trucks having high lift bodies have heretofore
been employed for the purpose of loading freight
and supplies into transport planes. These trucks,
however, have had permanently connected bodies,
and a relatively large and costly ?eet of trucks
was necessary to provide proper loading facili
ties.
It is a general object of the present invention‘
to provide an improved loading vehicle of the
having automatically operable electric signals for
readily indicating theposition of the body legs
and the condition of the body locks to the op
erator of the truck.
With the above and other objects in view, the
invention consists of the improved airplane load
ing and service vehicle and all its parts and com
binations‘ as set forth in the claims and all equiv;
alents thereof.
In the accompanying drawings illustrating one
complete embodiment of the preferred form of
the'invention, in which the same reference nu
merals designate the same parts in all of the
class described wherein novel means is employed
to permit quick withdrawal of the truck proper,
that is, the frame and cab, from the freight body
while the latter is independently supported on 15
its own legs. Thus, ‘a relatively small number
views:
_
Fig. 1, is a side elevational View of the improved
vehicle showing the freight body in elevated po
of trucks may be used to move and position a
sition, parts being broken away; in this view
relatively large number of bodies, and the cost
the dot-and-dash lines illustrate ‘the position of
of this equipment is, therefore, materially re
20 the freight body when it is supported independ
duced.
ently by,its own legs and in a position to be
A further object of the invention is to provide
picked up by the truck;
a vehicle, of the class described, having novel
Fig. 2 is a rear view of the improved vehicle,
means for quickly connecting and locking the
parts being broken away and shown in section;
freight body to the truck frame.
A further object of theinvention is to pro 25 Fig. 3 is. a fragmentary side elevational view
showing the freight body in lowered position and
vide a loading vehicle having a separable freight
locked to the truck" frame, the freight body legs
body equipped with movable legs, and having
being in raised position;
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means for raising and lowering said legs, the
Z,Fig._4 is a diagrammaticview- illustrating the
construction being such that when the legs are
in raised position the freight body is automati 30 electrical control system; and ‘
vFig.‘ 5 is a diagrammatic view illustrating the
cally locked to the truck frame, and when the
hydraulic system and controls.
legs are in lowered position the freight body is
Referring more particularly to the drawings,
automatically unlocked.
the numeral l9 designates a‘ motor driven truck
A further object of the invention is to pro
having‘a cab portion I l and having a main rear
vide a construction, as above described, having ‘
wardly extending frame portion l2. The truck
power driven means controlled from the truck
is supported on four wheels l3 in the usual man
cab for raising and lowering the legs of the freight
body.
,
ner.
- Normally supported on the mainframe I2 is
A still further object of the invention is to
provide a loading vehicle having a vertically mov 40 an auxiliaryjframe l3. ,The auxiliary frame com
prises spaced‘longitudinal members as illustrated
able power operated high lift frame portion for
elevating the freight body and having common
means, preferably located in the cab, for con
trolling the operation of said high lift frame and
in Fig.‘ 2, 'suitably'connected by cross members.
Levers l4, one on'each side of the vehicle, are
pivotally connected at their lower ends, as at
for controlling the leg raising and body locking 45 l5, to therear portion of the main frame I2.
The upper ends of the levers M are pivotally con
mechanism.
nectedyas at IE, to the ends of links ll. The
A further object of the invention is to pro
otherv ends ,' of the links I‘! are pivotally con
vide an arrangement, as above described, where-'
nected,'as_at [8, to the auxiliary frame l3. An
in‘ the leg-moving mechanism is operated by an
electric motor on the freight body and wherein 50 other-‘pair of levers I9, one on each side of the
vehicle,'have their upper ends pivotally connect
the circuit to said motor is automatically ren—
ed,_ as at 20, to the auxiliary frame I3 and have
dered operable when the high lift frame contacts
- their lower‘ ends pivotally connected, as at‘ 2|,
the leg supported freight body during elevating
movement of said frame.
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to links 22. The levers 19 are pivotally connected
A still further object of the invention is to 65 intermediate their length as at 9 to the levers
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M. The other ends of the links 22 are pivotally
connected, as at 23, to the main frame l2 of
the truck, as is clear from Fig. 1. The above
described arrangement constitutes a jack-knife
type of high lift mechanism.
An hydraulic device has its cylinder portion 23
4
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3, that when the motor 53 is operated in a direc
tion to rotate the crank shaft 55 clockwise that
this will cause the crank arm 56 to act on the link
51 and lever 58 to cause rocking of the shaft 42 in
a counter-clockwise direction. This rocking of
theshaft'42 will cause swinging of the rear legs
'45 from the raised position of Fig. 3 to the low
and has its movable ram portion 25 pivotally con
ered position shown by full lines in Fig. 1. At
nected to the levers I4, as at 25. 'Referring to
the same time the rods 48 will cause swinging
Fig. 5 there is suitable power take-off mechanism 10 of the front legs 44 from the raised position of
2‘! connected to the truck transmission which
Fig- 3 to the lowered position shown by full lines
drives an oil pump 28. Oil from a reservoir 29
in Fig. 1. It is also apparent that when the legs
flows through a line 30 leading to the pump and
are in'the raised position of Fig. 3 that the hooks
when the valve 3| is in a selected position‘ the oil
59. and 5! rigidly lock the body to the frame I3.
is forced, under pressure, through the line 32' into
When the legs are in the lowered position, it is
the lower end of the hydraulic cylinder 23 to
apparent that the hooks 59 and BI are released.
cause raising of the ram 25 and raising of the
Referring to Figs. 1 and 4 the control lever‘
high lift mechanism to the position of Fig. 1.
35 for‘the'high lift hoist has its lower end pivot- ’
When the valve operating lever 33 is in another
ally connected, as at 63, with one end of a switch
position, lowering of the high lift mechanism
operating rod 54. The switch operating rod 64
and body occurs. The valve operating lever 33
operates an electrical switch 65. Assuming now
has its upper end pivotally connected to one end
that the freight body 38 is independently sup
of a rod 34 and the other end of the rod extends
ported onits own legs, as indicated by dot-and
into the cab H and is pivotally connected, as at
dash lines in Fig. 1,‘ and that the truck has been
35, to the lower end of an operating handle 36. 25 backed into position beneath the, freight body 38,
The operating handle is pivoted to’ the vehicle, as
then, when the control‘lever 33 is pulled forward
at 31.
from the position of Fig. 1 it willlactuate the
A separable freightbody 38 has its floor 39 suit
valve lever 33 to permit the flow of hydraulic
ably supported on'transverse members such as
?uid, under pressure, into the hydraulic cylinder
pivotally connected to the main frame, as at 24,
the transverse channels 45, the latter being per
30 23.
manently secured to the lower ?oor 39. The
freight body. may be equipped with rear doors 38’
and with a movable front door ‘38" which can be
lowered to the position of Fig. 1 to provide a
This will cause raising of the auxiliary frame ,
member 13 from the dot-and-dash line position
of Fig. 1. As soon as the, auxiliary'frame con
tacts the transverse channels 4U'carried by the
bottom of the freight body, it will also cause en
transfer platform.
Extending transversely of the body 38 below
gagement of the electrical contacts 66, 61, 68, 63,
10 and ‘H carried by the freight body with con-.
tacts l2, ‘l3, 14, 1'5 and '15 carried’ by thev truck frame. As soon as the control'lever 35in the cab
the floor is a front transverse shaft 4| and a rear
transverse‘shaft .42 (see Figs. 2 and 3). These
shafts are’ rotatable in bearings 43-suitably con
is pulled toward the operator to operate the hy
nected to the bottom of the freight body. Rigidly 40 draulic mechanism, as above described, the cone
connected to both ends of, the shaft 4| are front
trol lever will also close the electric switch 65 (see
Fig. 4).. Current can then flow from one side
‘
legs 44 equipped with wheels. 45. ,Ptigidly con
of
nected to both. ends of the rear shaft 42 ‘are rear
the battery 1"! through the lines 18, 19, 8!) and BI
legs 45 equipped with wheeled casters 41. The
to one side of the leg-operating motor 53. The
casters are capable of swiveling on the lower ends
switch 82 is a normally closed limit switch. From
of the legs 46. It is thus apparent that, the ' the other sidelof the electric motor 53, current
freight body is equipped with four wheeled sup
?ows through lines 83, 84', 85 and '85 back to the
porting legs capable of furnishing independent
support for the freight body when the freight
body is in the dot-andedash line position of Fig. 1.
other side of _ the battery 17.
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ri‘his, of ‘course, -
starts the electric motor operating,'to.cause raising of the legs Hand 46 from the dot-and-dash.
line position of Fig. 1 to the elevated position of
Fig. 3, and this raising of the’ legs occurs while
1 the auxiliary frame I3 is moving the freight body
upwardly toward the full line positionof Fig.v 1.
A rod 48 on each side of the freight body is piv
otally connected at. one end ' as at 49 with a
bracket 53 rigid with the-leg 44. The other end
of the rod 48 is pivotally connected, as at 5|,
with a lug 52 on the leg 46. An electricalmotor 55 ' When the legs are fully raised, the hooks 59 and
53, suitably suspended, as at 54, from the'botto'm
‘61' automatically engage the locking, pins 60 and:
of the freight bod'y,,drives, through suitable re
52 to rigidly lock the freight body to. the auxiliary
duction gearing, a shaft 55. The shaft 55 is rig- '
frame. When the legs reach their fully, raised
idly connected to one end of a crank arm‘56.
position the limit switch‘ 82 is automatically
The other end of'the crank arm is pivotally con
nected to one endof a link 51;
The other end of
the link 51 is pivotally connected to the lower end
60 opened to break the circuit to the electric mo- ‘ .
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tor
5a.
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vElectricity, however; ?ows. aroundythe limit
of a lever 58. fThe upper end of the lever 58‘is
vswitch ?l'through the lines 81 and 83 to "cause
rigidly connected to the" transverse’ shaft 42. ' operation vof a signal light 89 which‘ indicates
Also rigidly connected to the shaft 42, near both 65 that the legs are in the ‘fup” position. This sig
ends thereof, are locking hooks 59 which are en
nal light 89 may be positioned on'the freightv body
. g'ageable with looking pins 63.
The. locking pins
near the front thereof so as to be readily vis
(if!v project laterally from the auxiliary framev
ible to the voperator through the‘rear windows
member [3 as shown in ‘Fig. 2. Similar locking‘
of the. cab. While thelight'89. is operatinggthere'
hooks 6i are rigidly connected to the forward. 70 is such resistance in the circuit tothe electric‘
shaft 4|, there being one hook, near each end of
motor 53 that the electricity jpassin'g'through the
the shaft.v The, hooks 51 are cooperable with .
locking pins 62 projecting laterally from the aux
motor cannot operate the latter.
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When the freight body is- supported on the
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auxiliary frame and when the switch .90 is closed
. It is apparent from the above, referring to Fig. 75 the‘ circuit is also completed to »dome lights 9|
iliary frame l3._
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within the freight body 38. This circuit extends
from one side of the battery 11
93 and 94 to one side of the
through lines 95, 96, 9'! and 85
of the battery.
If the body is in the elevated
through lines 92,
dome lights and
to the other side
position of Fig. 1
and if the legs are raised, as is usually the case
while the body is elevated, and if it is desired
that when the freight body is lowered that it be
independently supported on its own legs rather
than on the truck, then it is necessary to pro
vide for lowering of the legs 44 and 46 before the
freight body reaches the ground. This is accom
plished by swinging the manual switch 98 into
contact with contacts 99. When the switch 98'is
thus moved, current can flow from one side of the
battery ‘I'I through lines 92, I00, NH and I02 to
one side of the electric motor 53. From the other
side of the electric motor current flows through
lines I03, I94, I05, 91 and 86 to the other side
of the battery. The switch 98 is a reversing
switch and causes the electric motor to operate
in a reverse direction when the switch 98 is in
engagement with the contacts 99. During this
reverse operation of the motor the down limit
switch IDS is closed. When the'legs are fully
down the limit switch I06 automatically opens to
break the circuit to the electric motor 53.. As
soon as the limit switch opens, the current by—
passes the switch I06 flowing through lines I91 ,
and I08, and causes lighting of the signal light
I09. This signal light I09 indicates to the oper~
ator that the legs are down.
_
invention and all of such changes are contem
plated as may come within the scope. of the
claims.
What we claim is:
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.
1. In a wheeled vehicle having a mainrear
wardly projecting wheel supported frame portion,
an auxiliary frame supported on said main frame,
elevating means connecting said auxiliary frame
to said main frame for substantial lifting move
ment with respect'thereto, a body positionable
over said auxiliary frame and separable there
from, independent supporting legs movably con
nected to said body and of a length to independ
ently support said body when the auxiliary frame
is therebeneath and in a lowered position, power
operated means engaging said elevating means to
raise said auxiliary frame into contact with said
body to lift the body off of its legs, and means
for locking the body to said auxiliary frame.
2. In a wheeled vehicle having a main rear
wardly projecting wheel supported frame portion,
an auxiliary frame supported on said main frame,
elevating means connecting said auxiliary frame
to said main frame for substantial lifting move
ment with respect thereto, a body positionable
over said auxiliary frame and separable there
from, independent supporting legsxmovably con
nected to said body and of a length to independ
ently support said body when the auxiliary frame
is therebeneath andin a lowered position, power
operated means engaging said elevating means to
raise said auxiliary frame into contact with said
body to lift the body off of its legs, and means
for thereafter elevating said body supporting
Then, when the auxiliary frame is lowered from
‘
the full line position of Fig. l to the dot-and 35 legs.
3. In a wheeled vehicle having a main rear
dash line position therein, the legs 44 and 46 will
wardly projecting wheel supported frame portion,
be in lowered position to contact the ground, as
an auxiliary frame supported on said main frame,
shown by dot-and-dash lines in Fig. 1, and sup
elevating means positively connecting said aux
port the freight body independently. The truck
iliary frame to said main frame for substantial
I0 can then be driven out from beneath the body.
lifting movement with respect thereto, a body po
If, for any reason, it should be desired to raise
sitionable over said auxiliary frame, independent
the body supporting legs 44 and 46 without oper
supporting legs movably connected to said body,
ating the high lift mechanism, this may be ac
power operated means engaging said elevating
complished by moving the switch 98 into» engage
ment with the contacts IIO. Current can then 45 means to raise said auxiliary frame into con
tact with said body to lift the body off of its legs,
flow from the battery to the motor 53 without
and means for thereafter elevating said body sup
passing through the main switch 65 providing
porting legs and for locking the body to said
the limit switch 82 is closed at the time.
auxiliary frame.
It is apparent from the above that a few trucks
4. In a wheeled vehicle having a main rear
can be used for shifting and positioning a plu
wardly projecting wheel supported frame portion,
rality of the freight bodies. A truck can drive ‘
a body to a desired location and leave it there
‘ an auxiliary frame supported on said main frame,
elevating means permanently connecting said
without waiting for the body to be loaded. In
auxiliary frame to said main frame for substan
the meantime the truck can take another loaded
body to the proper position near an airplane. The 55 tial lifting movement with respect thereto, a body
positionable over said auxiliary frame, independ
empty body may then be returned to a location
ent supporting legs movably connected to said
for loading and the same truck may then leave
body, power operated means engaging said ele
this body in position on its own supporting legs
vating means to raise said auxiliary frame into
and pick up another loaded body. Stops I I l limit
the movement of the legs to lowered position. 60 contact with said body to lift the body off of its
legs, movable latch means for locking the body to
It is also clear that when a truck picks up a
the auxiliary frame, and a motor for operating
freight body‘that the legs of the freight body
are automatically raised and at the same time
the freight body is rigidly locked to the frame of
the truck. These operations are all automatic
and under the control of the operator in the cab
of the truck. By means of the signal arrange
ment the operator is fully informed at all times
as to the position of the legs of the freight'body.
By the novel arrangement a single control lever
controls the operation of both the high lift mech
anism and the leg raising and body locking mech
anism.
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Various changes and modi?cations may be
made without departing’from vthe spirit of the
said latch means.
5. In a wheeled vehicle having a main rear
wardly projecting wheel supported frame portion,
an auxiliary frame supported on said main frame,
means connecting said auxiliary frame to said
main frame for elevating movement with respect
thereto, a body positionable over said auxiliary
frame, independent supporting legs movably con
nected to said body, power operated means to
raise said auxiliary frame into contact with said
body to lift the body off of its legs, movable
latch means for locking the body to the auxiliary
frame, a motor for operating said latch means,
ianagrss }
7
iinz'connectronI'withiatleasteone ofisaidxindepen'd
‘and, a common control for said body'eleva'ting
' means and *sai'dilatch operating motor. ‘
V
end body supporting legs rand :means :cooperable’
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6. In a wheeled vehicle having a main rear-V
withLi-saidlatchifor locking'the vbody tot‘he ‘auxil
Wardly projecting wheel supported'frame portion,
:iary tfra‘mefwhen said legs are in elevated EpoSl
, ran'auxiliaryframesupported onisaid main frame,
' tion.
means connecting said auxiliaryiifr'ame to said
imain frame for elevating movement with re
11. In :a wheeled ‘vehicle :having ‘a main "rear
wardly‘projecting ‘wheel supported frame portion,
spect theretopa body positionable over-said auxil
iary frame, ‘independent supporting legs >movabl‘y
connected to said body,;power operated "means to
anauxiliary frame'supp'ortedo-n said main frame,’ ‘
‘means ‘connecting said auxiliary frame “to said
tmainiframe "for elevating movement ‘with respect
-there-tc,"-a body positionable over ‘said auxiliary
, raise ‘said-auxiliary frame'into Contact with said
body to lift the body off of its legs, movable latch
means for locking the body to the auxiliaryframe,
frame, independent‘supporting legs 'movably con- , ‘
nected ,to said body, powerhoperatedmea'ns to
raise said auxiliary frame into contact with ‘said
and a'motor for operating ‘said latch means ‘and _
for elevating said body supporting legs.
,
"body to transfer the loader "the ‘body from its ,
-'7. In a Wheeled vehicle having a. mainreare
legs ‘to said auxiliary frame, acOmmon‘means
Wardly projecting wheel supported frame portion,
including an electric motor, onsaid body for
an auxiliary frame supported on said main frame,
elevating :all of said body supporting legs simul
taneously, and ‘a control for said >mot0r on 1th
means connecting said auxiliaryframe 1to said
main frame'for-elevating movement with respect
wheeled vehicle,
thereto, a body positionable over said auxiliary
frame, independent supporting legs *movably connected to said body, power operating means to
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‘512; In a wheeled vehicle having ‘a main rear
wardly projecting wheel ‘supported frame por
tion, an auxiliary frame supported on said main
raise said ~ auxiliary frame into contact with-said
frame, ‘means connecting ‘said auxiliary frame.
to said main ‘frame for elevating ,movement with
r‘espectathereto, a body positionable ,over said
body, to lift the body off .of its legs, ~movable \
latch means-for locking the body to the auxiliary
frame, a motor for operating said-latchmeans- and
for elevating said body supporting :legs, and a
common control for the operation ref said body
auxiliary frame, independent supporting legs
'movably connected tosaid body, :power‘operated
means to raise said :auxiliary frame into contact
elevating means and for said motor.
30 with-said body to transfer the load :of the body
8. In a wheeled vehicle having a cab and
from ‘its legs to said auxiliary frame, latch means
‘having a» main wheel supported frame por
on both-sides ‘of ‘the body for locking the body
tion projecting rearw'ardly from the‘ cab, an
auxiliary ‘frame behind the cab ‘and supported
to said auxiliary frame,and>a-common means for
operating said latch‘mean's and legs.
on said main frame, means connecting said ‘
auxiliary frame to said main frame for ele
vating movement with-respect thereto, a body;po—
sitionable behindthe cab and over said auxiliary
frame,'independent supporting legs movably con
nected to said body, power operated means itO
raise said auxiliary frame into contact vwith said
tion, an auxiliary frame "supported 'on ‘said main;
frame, means connecting said zauxiliary frame
l to saidm'ain frame for "elevating'movement, with‘
40
a motor for operating said latch means, and a
common control located-in the cab for control- :
ling the operation of said body lifting means and
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respectzthereto, a body positionable over saidaux
.
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»;111ary frame, independent ‘supporting legs move
ably ‘connected to said body, power oper-'
ated meansgto raise-said auxiliary 'frameizinto
body toliftthe body off of itsllegs, movable latch
means for locking thebody tothe auxiliary frame,
said motor.
.13. In a wheeledvehiclehaVing a rniainrear—.
'wardly projecting wheel supported ‘frame ‘por
1
contact with said body to lift-the body loff oftits ,
legs, means includingwan electric motor ‘5011 the '
body for ‘raising and lowering said legs, motor
icontrollswitch means on the vehicle, an electric
f
In a, wheeled vehicle having a cab i'andihav
ing a main wheel supported frame portion 5pm
, circuitbetween said switch means and motor "in
jecting rearWardlyfrom the 'cab,-:~‘an ‘auxiliary
‘and a circuit ‘portion on the body, and electric
contacts :on the body and auxiliaryframe which
\cluding a circuit ¢portionjron the auxiliary frame
framebehind thecab and supported on-said main
frame, means connecting said vauxiliary fframesto
~said main frame for elevating movement with
respect theretoya body positionable behind the
‘are 'eng-ageable ‘when ‘the auxiliary frame engages
the body to render 'said'motor circuit operable.- ~~
"14.:In a wheeled vehicle having :a main :rear
lwardly projecting :wheelsupported frame portion,
” caband over said auxiliary frame, independent
supporting legs movably connected tolsaid ib‘ody, '
» power operated means to raise saidf'auxiliary'
, .an'auxiliary frame supported on said main frame,
' frame into contact with'saidbo-dy to lift the'b'ody
Y-means connecting said auxiliary frame to‘sai‘d '
main frame for elevating movement with respect
' off -of its legs, ‘movable latch means for, locking
‘ thereto',,a body ,rposition'able over said auxiliary W
the body to the auxiliary frame, a ‘motor ‘for
frame, independent ‘supporting ‘legs movably con
nectedrzto saidbody, power operated nieainslto
operating. said latch means and for. elevating said
body supporting legs, ‘and a common control lo
‘raise said auxiliaryframe into contact with said] 7 7.
cated in the cab for controlling the roperati‘onkof
saidbody liftingmeans'and motor.
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,»body' to lift the body~offiofgits legs, movable "latch! ' >
"
l0. Ina wheeled vehicle having *a ‘main rear- ‘
wardlyprojecting wheel supported frame ‘portion,
65
an auxiliary frame supported onsaid main frame, '
elevating means positively ‘connecting said . a'u'xil
iaryframe to said J'nain ffram'elifo‘r substantial
vertical movement ‘With respect thereto, a'Tbody
-means\, for locking the body to the, auxiliary
,frame, means including an electric motor on“ the
body foroperating said'latch means,motor' control '
switch'means on the vehicle, an electric circuit ‘.
}between said switch ‘means and motor including
acircuit portion on ‘thelauxiliary‘ frame and ‘a
_ ‘circuit portion on the body, and electric contacts.‘
70
r-p‘ositionable over said ‘auxiliary frame, independ- ' on the ‘body and auxiliary frame which are en
gageable when the auxiliary frame engages , the ‘
ent supporting legs movably connected .t‘o‘sa‘id
:body, ,pow'er‘op‘e'rated means (‘other than said§legs
‘ body to render said motor
circuit operable. '
15. In a wheeled vehiclehaving a main rear
t'otr'aise- saidla‘uxiliariy frame into contact with.
projecting wheel supported framepdrtion,
said body it'ozlift 'tlie’ibodyloff 'of its ‘legs; match 7;D, 'wardly
‘an auxiliary ‘frame supported on said main frame’,
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2,412,158
means connecting said auxiliary frame to said
main frame for elevating movement with re
spect thereto, a body positionable over said auxil
iary frame, independent supporting legs movably
connected to said body, power operated means to
raise said auxiliary frame into contact with said
body to lift the body off of its legs, means in
cluding an electric motor on the body for raising
and lowering said legs, motor control switch
10
nected to said body, upward movement of the
auxiliary frame causing it to engage the body to
lift it off of its legs, means for locking the body
to the auxiliary frame, and a common control
member for operating said frame locking means
and for moving said legs.
20. In a wheeled vehicle having a main rear
wardly projecting wheel supported frame portion,
a separable body, legs movably connected to said
separable body for movement into and out of body
supporting position and of such length that the
means on the vehicle, an electric circuit between
said switch means and motor including a circuit
rearwardly projecting wheel supported frame por
portion on the auxiliary frame and a circuit por
tion of the vehicle may be inserted beneath the
tion on the body, electric contacts on the body
separable body when the body is being independ
and auxiliary frame which are engageable when
ently supported on its own legs, lifting mechanism
15
the auxiliary frame engages the body to render
on said main wheel supported frame por
said motor circuit operable, and electric signal
tion including a movable auxiliary frame which
means in said electric circuit for indicating the
is movable into lifting engagement with said sep
position of the body legs.
16. In a wheeled Vehicle having a main rear
wardly projecting wheel supported frame portion,
an auxiliary frame supported on said main frame,
means connecting said auxiliary frame to said
main frame for elevating movement with respect
thereto, a body positionable over said auxiliary
frame, independent supporting legs movably con
nected to said body, valve controlled hydrauli
cally operated means for raising said auxiliary
frame into contact with said body to lift the body
off of its legs, movable latches for locking the
arable body to transfer the support of the latter
from its own legs to said auxiliary frame, said
legs being then movable out of body supporting
position to permit retraction of said lifting mech
anism and lowering of said separable body, and
means on the main wheel supported frame por
tion of the vehicle for supporting said auxiliary
frame and separable body after the lifting mech
anism has been retracted.
21. In a wheeled vehicle having a main rear
wardly projecting wheel supported frame por
tion, a separable body, legs movably connected
30
body to the auxiliary frame, means including an
to said separable body for movement into and out
electric motor and a switch therefor for “operat
of body supporting position and of such length
ing said latches, and means including a common
that the rearwardly projecting wheel supported
manual lever on the vehicle for actuating said
frame portion of the vehicle may be inserted
hydraulic valve and for actuating said motor
beneath the separable body when the body is be
switch.
17. In a wheeled vehicle having a main rear
ing independently supported on its own legs, lift
wardly projecting wheel supported frame por
frame portion including a movable auxiliary
frame which is movable into lifting engagement
tion, an auxiliary frame supported on said main
frame, means connecting said auxiliary frame
to said main frame for elevating movement with
respect thereto, a body positionable over said
vauxiliary frame, independent supporting legs
movably connected to said body, valve controlled
hydraulically operated means for raising said
auxiliary frame into contact with said body to
lift the body off of its legs, means including
ingmechanism on said main wheel supported
with said separable body to transfer the support
of the latter from its own legs to said auxiliary
frame, means including an electric motor on the
separable body for moving said legs out of body
supporting position to permit retraction of said
lifting mechanism and lowering of said separable
body, and means on the main wheel supported
frame portion of the vehicle for supporting said
an electric motor and a switch therefor for rais~
ing said body legs, and means including a com
mon manual lever for actuating said hydraulic
auxiliary frame and separable body after ‘the lift
ing mechanism has been retracted.
valve and motor switch._
wardly projecting wheel supported frame portion,
18. In a wheeled vehicle having a main rear
wardly projecting wheel supported frame portion,
an auxiliary frame supported on said main frame,
means connecting said auxiliary frame to said
main frame for elevating movement with respect
thereto, a body positionable over said auxiliary
frame, independent supporting legs movably con
nected to said body, valve controlled hydrauli
cally operated means for raising said auxiliary
frame into contact with said body to lift the body
off of its legs, movable latches for locking the
body to the auxiliary frame, means including an
electric motor and a switch therefor for moving
said body legs to raised position and for moving
said latches to locking position, and means in
cluding a common manual lever for actuating
said hydraulic valve and for actuating said motor
switch.
19. In a wheeled vehicle having a main rear
wardly projecting wheel supported frame portion,
an auxiliary frame vertically movably mounted
on the main frame, means for imparting verti—
cal movements to the auxiliary frame, a body
positionable vover said auxiliary frame, inde
pendent, ground-engaging legs movably con
22. In a wheeled vehicle having a main rear
aseparable body, legs movably connected to said
separable body for movement into and out of body
sup-porting position and of such length that the
rearwardly projecting wheel supported frame por
tion of the vehicle may be inserted beneath the
separable body when the body is being independ
ently supported on its own legs, lifting mecha
nism on said main wheel supported frame por
(it) tion including a movable auxiliary frame which
is movable into lifting engagement wi?o said sep
arable body to transfer the support of the latter
from its own legs to said auxiliary frame, means
including an electric motor on the separable body
for moving said legs out of body supporting posi
tion to permit retraction of said lifting mecha
nism and lowering of said separable body, means
on the main wheel supported frame portion of
the vehicle for supporting said auxiliary frame
and separable body after the lifting mechanism
has been retracted, and means for controlling 1
the operation of said electric motor from the
main vehicle.
'
NORMAN V. KUEHLMAN.
1
HENRY C. FRENCH.
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