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Патент USA US3042247

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July 3, 1962
K. cs. OLSSON
’
3,042,232
UNIT RECEIVING MEANS
Filed Jan. 18. 1960
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3,642,232
UNIT RECEIVING MEANS
Karl Gustav (Blsson, Solna, Sweden, assiguor to Casius
Corporation Limited, Montreal, Quebec, Canada
Filed .Fan. 18, 196i), Ser. No. 2,874
Claims priority, application Sweden Jan. 19, 1959
7 tClm‘ms. (4J1. 214—83.34)
This application is a continuation-in-part of my co
pending patent application Ser. No. 738,501, ?led on
May 28th, 1958, now abandoned.
This invention is concerned with the problems involved
in receiving substantially parallelepipedic bodies or units
of substantial size and low strength delivered in a hori
zontal direction as from the end of a moving conveyor
belt support and more particularly the invention relates
to means for receiving and forwarding to an autoclave
such large, porous light-Weight concrete units of paral
lelepipedic shape which are cast as a preliminary step
in the manufacture of blocks, slabs and similar building
elements of steam-hardened cellular concrete for ex
ample in a giant stationary mold of the type described
in said co-pending patent application Ser. No. 738,561
or in other suitable casting molds having a movable
conveyor belt bottom.
It is customary in the production of such porous con~
crete elements to release the cast bodies or units from
the mold walls as soon as the units do not longer need
‘
EJ342232
Patented July 3, 1962
2
cessitating any further shifting of the load from the
bearing surface on which it has been once received.
Other objects and features of the invention will be
come apparent from the following detailed description of
a preferred embodiment of the invention which has been
illustrated on the accompanying drawing, wherein:
FIG. 1 is a side view of the unit receiving means
showing, however, for the purpose of saving space only
the respective end portions thereof, it being left to under
stand that the intermediate portion omitted is an exten
sion of arbitrary length of the adjacent inner ends of
the portions shown,
FIG. 2 is a sectional elevation taken along the line
2-2 in FIG. 1 and thus showing the unit-receiving con
veyor belt structure resting on the runways,
PEG. 3 is a partial sectional elevation similar to FIG. 2
but showing the unit receiving conveyor belt structure
taken over by the transport truck received between the
two runways,
FIG. 4 is a partial top plan view of one of the two
runways, it being left to understand that both said two
runways are similar in design throughout their lengths,
FIG. 5 is a side view of the transport truck, partially
broken through to show the means for elevating the
load receiving members thereo?-this view being short
ened similarly to FIG. 1 for the purpose of saving space,
and
FIG. 6 is a fragmentary perspective view of a unit
the support thereof and to immediately remove the
semiplastic, porous units from the casting bed to make
receiving conveyor belt structure.
the latter ready for a new casting process. in the types
of casting molds above referred to the cast units are
prises, broadly, three separate but cooperating parts viz.
removed from the casting bed by the movement of the
conveyor belt mold bottom in order to avoid all the in
The arrangement ‘as illustrated in the drawing com
a main supporting structure A, a sectional conveyor
belt structure B, and a transport truck C. 1n the present
case the main supporting structure A is formed as a
conveniences and hazards involved in lifting such bulky 35 shunting truck having wheels 1 running on stationary
and damageable loads and, thus, the cast units are de
rails 2 on the factory floor. The frame of this shunt
livered at the one end of the casting bed in a horizontal
ing truck is composed of transverse beams 3 extending
direction to be then forwarded-after having been suit
parallel to the rails 2 and longitudinal beams 4 extending
ably cut through in one or more directions-—to the auto
at right angle thereto and having a considerably greater
clave for steam-hardening.
length than said transverse beams 3. There are four
It will be readily understood that those semiplastic,
longitudinal beams in the shunting truck frame and these
porous concrete units, which are to be taken care of at
beams are grouped in two spaced apart pairs. The two
the end of a casting bed of this kind, are not only very
beams in each pair are placed back to back rather close
large and heavy but also extremely sensitive to shocks,
to one another to form between them a guiding channel
vibrations, pressure, etcetera since the porous concrete
material has a very low strength until it has been sub
sequently hardened in the autoclave. Therefore, an ex—
for a beam-like carrier member 5 extending in the whole
been found most desirable to receive the units in such
manner from the casting bed that they may be trans
ported by means of trucks or like wheeled vehicles to
portion formed as a channel 5' in which a considerable
number of rollers 7 are mounted to be freely rotatable
the autoclave.
All said rollers of each runway are of the same size and
have their axes in a common plane and they are mounted
length of the beams 4 ‘and having at least its one right
hand end projecting beyond the ends of the beams Li.
tremely careful handling of the delicate units will be
Each carrier member 5 is guided relatively to its pair
necessary. This, in turn, makes it highly desirable to
of beams 4, such as by pins 6, to maintain a predeter
avoid all further shiftiru7 or reloadin<7 of the units once 50 mined longitudinal position therebetween but it is free
they have been properly delivered from the conveyor
to move vertically as will be explained hereinafter.
belt mold bottom. it has, however, been deemed practi
It will thus be clear that the two carrier members
cally impossible to deliver the semiplastic concrete units
5 extend parallelly to each other in the main supporting
from the casting bed directly into the autoclave for im~
structure A and they form a pair of spaced apart run
mediate steam-hardening treatment and, instead, it has
ways, because each carrier member 5 has its upper edge
This is particularly advantageous be
cause such trucks or vehicles may be easily moved around
and shunted on suitable tracks within the factory to de—
liver their load into any one of several autoclaves and
thus secure a more continuous utilization of the factory
about parallel axes transversing the channel section.
to present their top portions well above the edges of
the channel 5'. The rollers of each runway are also,
as will best be seen from FIG. 4, mounted in staggered
equipment.
65 relationship as viewed from above to present a support
Consequently, it is an object of this invention to pro
of maximum smoothness and continuity for the conveyor
belt structure B when the latter is received on said run
vide adequate means for receiving such large and delicate
ways.
semiplastic porous concrete units or similar bulky paral
Below the longitudinal beams 4 there are mounted a
lelepipedic bodies delivered in a horizontal direction as
from a moving conveyor belt support and to make pos 70 number of transverse shafts 8 passing under the lower
edge of both the two carrier members 5. Said shafts 8
sible a further transport of said units or bodies-for in
have eccentrics 9 secured thereto, one under each carrier
stance to an autoclave for steam-hardening-without ne
member 5, and the carrier members rest on these ec~
3,042, 232
this platform any such units which may be delivered in
centrics so that they will be raised and lowered in perfect
synchronism between its respective pair of beams 4 when
the shafts 8 are rotated.
a horizontal direction in over the right hand end (FIG. 1)
of the main structure A from an adjacent end of a con
The one end of each shaft 8
veyor belt support or the like (not shown). This has
been illustrated by the unit 25 which is supposed to enter
from the right as indicated by the arrow 26. This unit
25 may be a single, parallelepipedic body or it may be a
has a lever til secured thereto and the outer end of each
such lever is coupled to the corresponding levers of all
the other shafts 8 by means of links 11 to permit all the
shafts 8 to be rotated synchronously. The lever it?’ of
collection of several slabs or blocks such as may be the
case if it is a semiplastic porous concrete body which has
the one shaft has a toothed section 12 thereon which is
in mesh with a pinion 13 rotatably mounted on the side
of the main supporting structure A, and by turning this
been previously cut up into pieces but then left with the
pinion 13 by means of a crank 14- all the shafts 8 may be
rotated and set in desired positions to thereby adjust the
level of the two runways carried by the members 5.
At their right hand ends the two carrier members 5
support, together, another transverse shaft 15 having a 15
veyor belt structure B the latter has been placed on the
pair of axially spaced sprocket wheels 16 secured there
to. The shaft 15 is rotatable by means of a second crank
17 and the sprocket wheels 16 have for their purpose to
engage the conveyor belt structure B when the latter is
placed on the runways formed by the rollers 7 on top
of the carrier members 5 and moved thereon towards the
right in FIG. 1. Consequently the conveyor belt struc
ture B may then by turning the crank 17 be fed down
pieces in unaltered relative positions.
Preparatory to the receipt of such a unit 25 on the con
runways, pushed to the right end thereof and fed down
on the lower roller ways it; by means of the sprocket
wheels 16 until ‘the bracket 22 abuts the ends of the
arms 23 as shown by dash-and-dot lines in FIG. 1. If
necessary, the level of the runways has also been ad
justed to place the top surface of the conveyor belt struc
20 ture ?ush with the bottom level of the unit to be received
and this is, of course, accomplished by turning the crank
14 a suitable, small angle. Now, when the unit 25 is re
ceived, the forward end of the unit will ?rst abut the
bracket 22 and come to rest on the end panel 20’ of the
from the runways, section by section, and received, in
upside-down position, on a pair of spaced, parallel roller 25 conveyor belt structure B and then the unit 25 will take
ways 18 Xtending longitudinally of the main supporting
structure A at a level slightly below the lower edges of
the transverse beams 3.
The roller ways 13 may, as
the entire conveyor belt structure B with it as it ad
vances along the runways which are, of course, properly
placed to extend in the direction of delivery of the unit.
As a consequence of this the conveyor belt structure B
formed by the rollers '7 on top of the two carrier mem 30 will be drawn up, section by section, over the sprocket
wheels 16 from its temporary storage space on the roller
bers 5, ‘and the right hand ends of the roller ways 18 are
ways 18 and spread out longitudinally over the runways
bent upwardly to properly receive and guide the conveyor
with the unit 25 received on top of it.
belt structure B to and from the sprocket wheels 16.
it should be understood that the length of the con
it should be noted that the roller ways 18 are suspended
shown, be of much simpler construction than those
in such a manner under the frame of the shunting truck 35 veyor belt structure B and thus also of the runways should
that the conveyor belt structure B can freely enter its
storage space thereon and then again be returned to the
be so chosen that the entire length of unit 25 will become
rested on the platform formed by the conveyor belt
structure B.
runways on top of the carrier members 5. For this pur
When the entire unit 25, or a series of units as the
pose, however, the conveyor belt structure B must not
be fed down to its entire length on the roller ways 18 as 40 case may be, has been properly received on the conveyor
belt structure B it may be necessary to move the latter by
will be explained later on.
hand, or with the aid of any suitale mechanical means,
The conveyor belt structure B is composed of a plu~
a small distance further to the left in FIG. 1 to make its
rality of transverse, rigid panels or beams 29 coupled
together in slightly spaced relationship by means of links
21. Each panel or beam 2i} has a width, counted in the
longitudinal direction of the belt, which is considerably
greater than the width of each slot between adjacent
panels and one panel 20’ forming the one end of the
conveyor belt structure B has a considerably greater
width than all the other and has secured to its upper side
an upstanding bracket 22 forming an abutment for the
forward end of the unit to be received and also for en
gaging two arms 23 mounted on opposite sides of the
right hand end entirely free from the sprocket wheels 16,
and then the platform B with its load may be lifted away
from the runways if the movements of the shunting truck
formed by the main supporting structure A is not sum
cient to place the load where desired.
in the present case it is assumed to be desirable to re
move the platform B with its load of unit 25 from the
main supporting structure A for further transport and for
this purpose there are provided mil beams 27 between
the two runways and the two pairs of longitudinal beams
4. These rail beams 27 form a track for a transport truck
main supporting structure A and having for their purpose
C which is designed to enter the space betwen the two
to prevent the panel 24)’ from leaving the runways on
top of the carrier members 5 when the rest of the con 55 runways as shown in FIGS. 2 and 3 and which comprises
an elongate frame 28 having wheels 29. On both sides
veyor belt structure B is fed down therefrom by means
of the frame 28 and longitudinally thereof there are pro
of the sprocket wheel 16- as above described. All the
vided beams 30 resting on eccentrics 31 secured to the
panels forming part of the conveyor belt structure have
respective ends of a number of transverse shafts 32 jour
a length, counted in the transverse direction of the belt,
naled in the truck frame 23. The two beams 30 are re
which well exceeds the distance between the two runways
tained on the frame 28 by means of suitable bolts 33 in
on top of the carrier members 5.
serted through slots 34 allowing the beams 30 to move
From the aforesaid it will be clearly understood that
vertically relatively to the truck frame 28 in response to
the conveyor belt structure B is not only a sectional belt
the rotation of the shafts 32 with their eccentrics 31.
structure but also a structure of de?nite length capable
of forming, when resting entirely On the runways formed
Substantially in the same manner as has been herein
by the rollers 7 of the carrier members 5, a completely
before described with reference to the means 8-11 for
?at platform resting entirely free and readily removable
on said runways. It will also be clear that the total
length of the conveyor belt structure B must not exceed
the length of the runways but may be considerably
shorter, if. desired. When properly placed on the run
ways the platform formed by the conveyor belt structure
will, of course, bridge the space between the two runways
and it will also be able to support a considerable load.
It is the basic intention of this invention to receive on
raising and lowering the carrier members 5, the shafts 32
of the transport truck C have levers or arms 35 connected
by links 36 to effect synchronous rotation of the shafts
and, hence, synchronous vertical movements of the beams
30, but in the transport truck C the rotation of the shafts
32 is accomplished by turning, with the aid of a remov
able crank 37, a spindle 38 extending through the left
hand
end wall of the truck frame 28 and having a threaded
75
3,042,232
portion engaging a nut~like member 39 articulatedly se
cured to the lower end of the left hand lever 35.
Each beam 30 has a length at least corresponding to
the length of the conveyor belt structure B and each beam
also has a load receiving prism 40 of similar length welded
to its top surface. When the beams 30 are adjusted to
their lowermost position relatively to the truck frame 28,
the entire transport truck C will be able to freely enter the
space between the runways formed on top of the carrier
members 5 also when the conveyor belt structure B is rest
ing thereon. ‘If, however, the transport truck C has been
inserted under the conveyor belt structure B and the car
rier members 5 are lowered to their lowermost position
or, alternatively, the beams 30 of the transport truck C
are raised to their uppermost position, the conveyor belt
6
2. An arrangement as claimed in claim 1, wherein said
runways are vertically adjustable relatively to said trans
port truck received therebetween,
3. An arrangement as claimed in claim 1, wherein said
platform receiving means on said transport truck are ad
justable in height relatively to said runways.
4. An arrangement for receiving substantially parallel
epipedie units of low strength delivered in a horizontal
direction as from the end of a moving conveyor belt sup
port, said arrangement comprising in combination a sup
porting structure, a pair of ‘spaced, parallel runways on
said supporting structure, said runways extending in the
direction of delivery of the units and projecting above the
remainder of said supporting structure so as to form a free
space between them, a separate sectional conveyor belt
structure B will be taken over from the runways by the
structure composed of parallel, transverse rigid members
prisms 40 of the transport truck and then be ready to fol
hingedly coupled together to form, when resting ?at, a
low the latter away from the main supporting structure
unit-supporting platform capable of bridging said free
A. It will be appreciated that, if the unit 25 has been
space between the two runways, when .received thereon,
received on the conveyor belt support B when the latter 20 and having a definite length at least somewhat shorter
is thus taken over by the truck C, the unit 25 will follow
than the length of said runways but longer than the
the conveyor belt structure wherever the same will
length of any unit to be received, means at that end of
be transported and consequently no shifting or removal of
said runways, where the units enter, to guide said con
the unit 25 on or from the platform, on which it was
once received, will be necessary for forwarding the unit
to any desired place such as an autoclave, where the truck
C may, of course, be relieved by suitably reversing the
load receiving operation such as between a pair of ?xed
veyor belt structure up on said runways from a temporary
storage space below them so as to let it spread out longi
tudinally over said runways to form said platform, sec
tion by section, when the units are received thereon, a
separate transport truck capable of entering said free
supporting brackets or beams.
space between the two runways and means for adjusting
The truck C may also be utilized to deliver a fresh con 30 the relative vertical position of the top of said truck
veyor belt structure to the runways of the main structure
and the level of said runways in order to cause said truck
A in a similar way and in this case the runways may be
to take over said platform with its load of units thereon
caused to take over this fresh conveyor belt structure
from said runways for carrying said platform away from
either by lowering the truck prisms 40 or by raising the
said runways and said supporting structure.
carrier members 5.
35
5. An arrangement for receiving substantially parallel
It should be understood that several changes ‘and mod
i?cations of the ‘details herein described may be resorted
to within the scope of the appended claims and that the
invention is not con?ned to the preferred embodiment
shown in the accompanying drawings.
What I claim is:
1. An arrangement for receiving substantially parallel
epipedic units of substantial size and low strength deliv—
ered in a horizontal direction, as from a moving conveyor
belt support, and for placing said units on a transport
truck, said ‘arrangement comprising in combination a pair
of spaced, parallel runways extending in ‘the direction of
delivery of the units to be received, a sectional conveyor
belt structure composed of parallel, transverse rigid mem
bers hingedly coupled together to form, when resting on
said runways, a platform of de?nite length bridging the
space between said runways and capable of receiving ‘and
supporting at least one complete unit, a transport truck
separate from said runways and having wheeled frame ca
elepipedic units for substantial size and low strength de
livered in a horizontal direction as from a moving con
veyor belt support, said arrangement comprising, in com
bination, a pair of spaced, parallel runways extending in
40 the direction of delivery of the units, a plurality of par
allel transverse rigid section members forming together,
when resting on said runways, a free and removable plat
form of de?nite length bridging the space between said
‘runways and capable of receiving and supporting at least
one complete unit, means at that end of said runways,
where the units enter, for placing said transverse platform
section members, one by one, on said runways to form
said platform as the unit is received thereon, and a sec
ond support adapted to receive said unit-loaded platform
from said runways, said parallel runways being vertically
adjustable to deliver said unit-loaded, free platform to
said second support by being lowered below the platform
receiving surfaces of said second support.
6. An arrangement as claimed in claim 5, wherein said
vertically adjustable runways form part of a wheeled
that end of said runways, where the units enter, for feed—
truck.
ing down a main portion of said conveyor belt structure
7. An arrangement as claimed in claim 5, wherein said
into a storage space below said runways preparatory to
runways each present two rows of rotatable rollers having
the receipt of a unit thereon and for guiding said belt
parallel axes transversing said runways, the rollers in said
structure up on said runways to let it form said platform
60 two rows of each runways being placed in staggered rela
thereon, section by section, as the unit enters, so that the
tionship to provide a friction reducing platform support
unit will become rested on said platform, means on said
of maximum smoothness.
transport truck extending in the full length thereof ‘and
References Cited in the ?le of this patent
longitudinally of said runways to receive said platform
with the unit thereon from said runways, and means for
UNITED STATES PATENTS
adjusting relative to each other the levels of said runways 65 2,119,424
Douglas et al __________ __ Aug. 31, 1938
and said platform receiving means of the truck to there
2,140,974
Wagner et a1 __________ __ 'Dec. 20, 1938
pable to enter the space between said runways, means at
by effect shifting of the unit-loaded platform from said
runways to said truck.
2,186,463
2,854,158
‘Maine _______________ __ Jan. 9, 1940
Copeland ____________ __ Sept. 30, 1958
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