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Патент USA US3032857

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May 8, 1962
3,032,851
F. M. GIBBS
APPARATUS FOR MAKING AND STACKING CONCRETE BLOCKS
Filed Jan. 27. 1959
3 Sheets-Sheet 1
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FREDER/C
BY
INVENTOR.
M. ' GIBBS
‘
3,032,851
May 8, 1962
INVENTOR.
FREDER/C M. 6/885
BY
ATTORNEY
May 8, 1962
F. M. GIBBS
3,032,851
APPARATUS FOR MAKING AND STACKING CONCRETE BLOCKS
Filed Jan. 27. 1959
3 Sheets-Sheet 3
INVENTOR.
i
\
7 ~_{
FREDER/C M. G/BBS
BY
£64.“
United States Patent O?ice
1
3,032,851
APPARATUS FGR MAKING AND STACKHJG
CONCRETE BLGCKS
Frederic Marlrell Gibbs, 1717-0 Farley Road,
Los Gatos, Calif.
Filed Jan. 27, 1959, Ser. No. 789,442
3 Claims. (Cl. 25-2)
This invention relates to an apparatus for making and
3,032,851
Patented May 8, 1962
2
block retaining channel irons are positioned on the tops
of the mold groups, said groups are ready to be removed
from the elongated platform by the traveling crane appa
ratus which may be the same traveling crane as is em
ployed for transporting the concrete hopper along the
elongated platform.
This crane is provided with a chain lift having a pair
of ends which are adapted to engage the ends of a steel
rod that is inserted through the center of the concrete
stacking concrete blocks.
10 block group to be lifted. When this rod is in position and
An object of this invention is to provide an improved
is attached to the lift chain the concrete block group with
apparatus for making and stacking concrete blocks by
the pallet or block retaining means attached thereto is
labor saving means.
lifted from the elongated platform and transported by
Another object of this invention is to provide an im
the crane to the storage area. When a lifted concrete
proved apparatus whereby a single operator may process 15 block group is in position over the storage area, it is in
a large number of blocks without engaging in heavy
verted on the crane hoist simply by rotating the concrete
manual labor ordinarily required in making such blocks.
block group on the centrally located steel bar that was
Another object of this invention is to provide an im
employed for lifting the concrete block group until the
proved apparatus for making concrete blocks in which
group of blocks is in inverted position, in which position
there is employed a plurality of groups of block forms or 20 the pallet or block retaining means will be on the lower
molds which are adapted to be ?lled with concrete from
most surface thereof. If a group of blocks that is provided
a hopper type apparatus and which are adapted to be in
with a pallet is being handled, then the pallet and the
verted to form stacks of blocks after the concrete blocks
block group are lowered by the chain hoist so that the
are hardened.
Still another object of this invention is to provide an
improved apparatus for making concrete blocks in which
the concrete is shaped in molds that are arranged in
groups, said molds being provided with block retaining
means so that the groups may be inverted and placed
upon a platform or pallet while they are still in the molds, 30
and thereafter the molds may be removed therefrom,
pallet rests on the storage surface. The pallet retaining
means is then detached from the pallet and the concrete
block form is removed from the blocks simply by using
the crane to lift it therefrom.
The concrete blocks are
pulled out of the molds by the ‘force of gravity and they
are allowed to rest on the top surface of the pallet with
their large ends positioned thereon.
The second form group following the one provided
leaving the blocks stacked on said platform.
with a pallet, is next lifted from the elongated platform
Other and further objects of this invention will be ap
parent to those skilled in the art to which it relates from
by using the aforesaid crane and the concrete block group
therein is moved to the position directly over the ?rst
the following speci?cation, claims and drawing.
concrete block group.
The second form group is not
In accordance with this invention there is provided an
provided with a pallet but instead is provided with a pair
improved apparatus for making and stacking concrete
of channel irons for holding the blocks in position in the
blocks of tapered con?guration without requiring the use
molds. When the blocks of this group are resting on the
of heavy manual labor for handling the blocks. The
tops of the blocks arranged on the pallet in the storage
blocks are ?rst cast in suitable molds which are arranged 40 area, they are released from the mold group simply by
in groups, for example, each group may contain sixteen
removing the channel irons and the form is lifted from the
concrete block forms that are attached together so as to
released blocks by the chain hoist of the crane. The
form a substantially square mold group. These mold
empty mold group is then transported by the crane to its
groups are arranged on an elongated platform which is
position on the elongated platform ready for re?lling with
positioned underneath the tracks of a traveling crane type 45 concrete. The third group is provided with the same type
apparatus that is employed for carrying a concrete hopper.
of block retaining means as the second group and the
.This hopper is ?lled with concrete and the operator then
concrete blocks thereof are placed on the concrete blocks
moves the hopper over the mold groups and ?lls each mold
from the second group. The fourth group is provided
with concrete from the bottom of the concrete hopper.
with a pallet the same as the ?rst group and the blocks
After all the molds on the elongated platform are ?lled 50 thereof are placed on this pallet when this group is in
with concrete, a certain length of time is allowed for the
verted. Thereafter the blocks from the ?fth and sixth
concrete blocks to set and harden.
groups are placed on the blocks from the fourth group.
The tapered molds are arranged in the aforesaid groups
This procedure is repeated until all of the mold groups
so that the large end of the mold is open and the small
are emptied in the storage area and the blocks are
end forms the bottom of each mold. Thus the tapered 55 stacked on the pallets.
,
concrete ‘blocks are formed in the molds with the large
Further details of this invention will be set forth in
end thereof uppermost to facilitate easy removal of the
the following speci?cation, claims and drawing in which
concrete blocks from the mold.
brie?y:
A pallet that is coextensive with the top of the mold
FIGURE 1 is a view in side elevation of an embodi
group is placed on the ?rst mold group on the elongated 60 ment of this invention;
platform and a similar pallet is placed on the fourth,
FIGURE 2 is a plan view of the invention shown in
seventh and tenth groups on said platform after the con
FIGURE
1;
crete in the molds is set ‘and hardened. Suitable retaining
FIGURE
3 is a bottom perspective view of one of the
means is provided for clamping these pallets down on the
top surfaces of the mold groups so that these mold groups 65 block mold groups;
FIGURE 4 is a top perspective view of one of the
may be inverted and the blocks allowed to rest on the
mold groups having loops for receiving the channel iron
pallet associated therewith as will be clear from the fol
members that are employed for retaining the blocks in
lowing description. The mold groups between the afore
the mold during handling;
said groups are provided with means for attaching a pair
FIGURE 5 is a top perspective view of a mold group
of channel iron members to the tops thereof for the pur 70
with a pallet inverted over the top thereof and attached
pose of retaining the concrete blocks in the molds when
these mold groups are inverted. After the pallets and
thereto;
snags-s1
3
FIGURE 6 is a perspective view of one of the concrete
blocks;
FIGURE 7 is a side view of blocks such as shown in
FIGURE 6 stacked on a pallet;
. FIGURE 8 is a side view of one of the mold groups
with a pallet attached to the top thereof and the whole
being supported by the chain hoist preparatory to inver
sion thereof;
FIGURE 9 is a side view of the block mold and chain
hoist shown in FIGURE 8;
FIGURE 10 is a side view similar to that shown in
FIGURE 8 in which one of the even numbered mold
ail
may be lowered to receive a charge of concrete. When
the bucket 23 is full of concrete it is transported on the
rails 15 and 15a along the tops of the open molds 12, so
that each of these molds may be ?lled with a suitable
quantity of concrete that is released from the hopper bot
tom 27 of the bucket by manipulating the lever 270.
Thus the bucket ?lled with concrete may be moved by
the crane over the molds arranged on the platform 10
without the expenditure of hard manual labor.
The ?rst and fourth mold groups 13 shown in FIGURE
2 are ‘adapted to have pallets 30 such as illustrated in
FIGURE 5 inverted over the tops thereof, after these mold
groups have been ?lled with concrete which has been
allowed to set and harden. Where the elongated platform
preparatory to inversion thereof;
FIGURE 11 is a side view of the mold group shown 15 10 is long enough to support more than six mold groups
then three additional mold groups are provided since the
in FIGURE 10 inverted over the top of the concrete
seventh mold group is adapted to be provided with a pallet
blocks removed from the mold shown in FIGURE 9 and
and this is followed by two mold groups without pallets.
positioned on the pallet;
In other words each mold group that is to be provided
FIGURE 12 is a side view of the hopper bottom con
with a pallet is followed by two mold groups without
crete carrier employed for ?lling the block forms posi
pallets. These pallets 30 are of conventional construc
tioned on the elevated platform as shown in FIGURE 1;
tion in that they include a number of boards 31 attached
and
to one side of the cross pieces 32 so that they form a
FIGURE 13 is a view taken along the line 13-13 of
small platform on which the concrete blocks release from
FIGURE 12.
Referring to the drawing in detail there is shown in 25 the molds may be positioned as shown in FIGURE 7.
FIGURES 1 and 2 an elongated platform III that is sup
Suitable spaced bracing boards 33 are attached to the
other side of the cross pieces 32. The pallet 30 is held
ported by the posts 11 and on which there are positioned
against the top of the mold group as shown in FIGURE
a plurality of concrete'block molds 12 which are arranged
5, by means of a rod 42 which passes through the pallet
in groups such as the groups 13 and 14 shown in FIGURE
2. It'will be noted that the ?rst and fourth groups are 30 and engages the boards 31 thereof. This rod 42 is held
in place by a pair of strip members 43 and 43a which
designated as groups 13 and the second and third groups
extend between this rod and another rod 36 which is po
are designated as groups 14 and the purpose of this will be
sitioned in the center of the mold group in the channel
more fully described hereinafter. Each of these groups
like cavity 45, that extends through the center of the mold
includes 16 of the molds 12 and these molds are perma
nently fastened together by welding at their adjoining top 35 group. Bearing member ‘34 in the form of an angle iron
is attached to adjacent ones ‘of the molds 12 as shown in
edges and by means of‘ suitable iron straps or rods‘ 12a
FIGURES 3 and 4 and functions as a bearing for the
welded thereto around the bottom of the mold group so
groups shown in FIGURE 1 is attached to the chain hoist
rod 36. Small straps 35 may also be attached to the
exteriors of the outer molds adjacent to the ends of the
described in detail hereinafter. The molds 12 are tapered
for producing tapered blocks and when these ‘molds are 40 angle iron member 34 if desired.
The ends of the rod 36 are inserted into loops 37 and
grouped as shown in FIGS. 3 and 4 spaces or channels
37a which are attached to the lower ends of the chains
are formed therebetween. These channels are useful in
38 and 38a as shown in FIGURE 9 and the upper ends of
the handling of the mold groups and stacking of the con—
these chains are attached to the angular members 40 and
crete blocks.
A pair of iron rails 15 and 15a which may be in the 45 40a respectively which ‘are attached to the ends of the
spreader member 39. Additional chains 41 and 41a are
form of I-beams are supported by means of posts 17
attached to the upper ends of the members 40 and 40a
along each side of the elongated platform 16 and these
respectively and the upper ends of these chains are at
rails support the beam 17 of a traveling crane which is
tached to the loop 42 which is adapted to be engaged by
provided with carriages 18 and 18a that engage the rails‘
the hook 25a of the chain hoist 26 as shown in FIGURES
15 and 15a respectively. Each of these carriages 18 and
8 and 9.
18a is provided with a plurality of wheels suitable for en
After the pallet 30 is placed upon the ?rst mold group
gaging the top surfaces of the rails 15 and 15a and select
13 and secured thereto as shown in FIGURE 5, and after
ed ones of these wheels are attached to the end portions
the chain hoist is attached to the ends of the bar or rod
of the rod 19 which is adapted to drive these wheels and
36 as shown in FIGURES 8 ‘and 9, the mold group is
a suitable motor 20 is coupled to the rod 19 for this pur
lifted from the platform 10 by means of the chain hoist
pose. The motor 20 may be of the electrically driven
26 and while the mold group is in this lifted position it is
type and a suitable extension cord 21 that is supported on
transported by the crane to a storage area which may be
the wire 22 by means of slidable rings 22a is provided for
oil? to one side of the platform 10. When the mold group
connecting the motor 20 to a suitable source of current
and pallet that is ‘attached thereto are located over the
supply.
storage
area, the mold group and pallet are rotated about
The I-beam 17 of the traveling crane is adapted to sup
that each mold group may be handled as a unit as will be
port the bucket 23 which is employed for transporting
concrete to the molds 12 from the concrete mixer 28.
This bucket is provided with a hopper bottom 27 that may
be opened and closed by the lever 27a, as shown in FIGS.
12 and 13, to permit dropping proper amounts of concrete
out of the bucket 23 into the molds 12 through the open
tops thereof. The bucket 23 is adapted to be supported
from the chain 25 which is provided with a hook 25a.
The chain 25 may be raised or lowered by means of the
hoist 26 which is of conventional construction. Thus the
crane may be moved on the rails 15 and 15a by means of
the carriages 18 and 18a so that the bucket 23 may be
transported to the concrete mixer 28 at the left hand
end of the rails 15 and 150 at which point the bucket 23 75
the rod 36 as an axis so that the pallet 30 is on the lower
surface of the concrete blocks positioned in the molds of
the mold group. The pallet 36 and mold group includ
ing the concrete blocks therein ‘are now lowered to the
ground so that the members 33 of the pallet rest on the
ground and the rod 42 is then detached from the strips
43. The chain hoist 26 is then operated vand the mold
group is raised leaving the concrete blocks 40 with their '
large ends resting on the pallet 3% as shown in FIG-1
URE 7.
Mold group 14 following the mold group 13 is next
transported from the platform 11) so that the blocks there
in may be placed on the blocks 40 removed from the ~
preceding mold group. Suitable channel iron members ,
3,032,851
5
6
43 are inserted into the loops 44 attached to selected‘
molds of the mold groups 14. The purpose of these chan
charge of concrete to be set into concrete blocks, a pallet
positioned over the open ends of the molds of a ?rst one
nel iron members 43 is to retain the concrete blocks in
position in the molds of these mold groups when they are
lifted and inverted. The mold groups 14 are also pro
,of said groups, attaching means for releasably attaching
vided with hearing angle iron member 34 and straps 35
as previously described in connection with the description
of mold group 13 and the rod 36 which is adapted to be
said pallet to said ?rst mold group, lifting means adapted
to be releasably attached substantially to the center of
said ?rst mold group for lifting and inverting said ?rst
mold group so that the concrete blocks therein are in
vented onto said pallet and released therefrom when said
attaching means is detached therefrom, said concrete
blocks being positioned on said pallet in spaced apart rows,
retaining rods positioned over portions of the open ends
attached to the chain hoist as described in connection
with FIGURES 3-9 and as shown in FIGURE 10, is in
serted through the mold group along the angle iron mem
of a second one of said mold groups such that each re
ber 34. When the mold group is thus attached to the
taining tl'Od extends over parts of the tops of blocks in
chain hoist and inverted, the channel iron members 43
effectively lock the concrete blocks in the molds of the
adjacent rows of the molds thereof, means for releasably
mold group so that the inverted mold group may be posi 15 attaching said retaining rods to said second mold group,
said lifting means being adapted to be releasably attached
tioned over the top of the blocks 40 as shown in FIG
substantially to the center of said second mold group for
URE 11 before rods 43 are removed from the loops 44.
When the mold group 14 is in position over the concrete
lifting and inverting said second mold group over the
concrete blocks positioned on said pallet, said retaining
blocks 40 and the blocks in the mold group 14 are rest
ing on the tops of the blocks ‘40 it will be observed that 20 rods ‘being adapted to extend into spaces between rows
the channel iron members are located in spaces between
of blocks on said pallet when said blocks in said second
mold group are positioned on corresponding blocks on said
the blocks 40 and below the upper surfaces thereof. Since
pallet by said lifting means, said retaining rods being
they ‘are clear of the blocks 40, the channel iron mem
adapted to be released by said last-mentioned releasable
bers 43 may be removed and the mold group elevated
by the chain hoist leaving the blocks 41 released from
attaching means when said blocks in said second mold
the mold group 14 and resting on the tops of the blocks
group are positioned on corresponding blocks on said
4-3 as shown in FIGURE 7. The blocks from the next
pallet whereby said blocks in said second mold group
mold group 14 may be placed on the top of the blocks
are released therefrom and stacked on the blocks on said
41 shown in FIGURE 7 to make a stack that is three
pallet when said lifting means lifts said second mold group
blocks high. The next mold group is designated by ref 30 away from the last-mentioned blocks.
erence numeral 13 and this mold group is adapted to be
2. in apparatus for making and stacking concrete
provided with a pallet on which the blocks may be placed
blocks the combination of elongated platform means, a
as previously described in connection with the ?rst mold
plurality of concrete block molds adapted to be supported
group 13 and thereafter the blocks from two mold groups
on said platform means, means for attaching a plurality
14 may be stacked thereon. The mold groups 13 are . of said molds together to form a plurality of mold groups,
the ?rst, fourth, and seventh mold groups on the platform
It) and these are referred to as a ?rst series whereas the
mold groups 14 are the second, third, ?fth, sixth, eighth
each of said mold groups comprising a plurality of paral
lel rows of molds with tapered spaces therebetween, said
molds in said groups having open ends for receiving a
charge of concrete to be set into concrete blocks, a pallet
and ninth mold groups on the platform and these are re
ferred to as the second series. Of course these series 40 positioned over the open ends of the molds of a ?rst one
may be extended further if a longer platform 10 is pro
vided. Furthermore, these series may be altered. ‘If it
is desired to stack the blocks only two high the ?rst series
becomes the odd numbered mold group series and the
second series becomes the even numbered series, or if the
blocks are stacked four high then the first series includes
the mold groups one, ?ve and nine, and the second series
includes the second, third, fourth, sixth, seventh and
eighth. Also, two platforms 10 may be provided paral
of said groups, attaching means for releasably attaching
said pallet to said ?rst mold group, a rod passing through
the tapered space substantially in the center of said ?rst
mold group, lifting means adapted to tbe releasably at
tached to said rod for lifting said ?rst mold group and
inverting said ?rst mold group about said rod so that the
concrete blocks therein are inverted onto said pallet and
released therefrom when said attaching means is detached
therefrom, said concrete blocks being positioned on said
pallet in spaced apart rows, a plurality of retaining rods
lel to each other and the mold groups of the ?rst series
may be on one platform whereas those of the second
positioned over portions of the open ends of a second one
series may be on the other platform.
of said mold groups such that each of said last mentioned
The blocks formed in the molds 12 are in the shape of
rods extends over parts of the tops of blocks in adjacent
a frustum of ‘a pyramid as shown in FIGURE 6. They
rows of the molds thereof, means for releasably attach
may of course have other shapes if desired. Where these 55 ing said last mentioned rods to said second mold group,
blocks are employed as elements of a foundation to which
a rod passing through the tapered space substantially in
boards or similar structural members are to be attached, I
the center of said second mold group, said lifting means
each of the blocks may be provided with a wooden in
being adapted to be releasably attached to said last men
sert 50. These wooden inserts may be placed in the
tioned rod for lifting and inverting said second mold group
bot-toms of the molds 12 as shown in FIGURE 4 prior to
60 over the concrete blocks positioned on said pallet, said
the ?lling of the mold with concrete so that when the
retaining rods being adapted to extend into spaces be
concrete is placed into the mold, the wooden blocks 50
tween rows of blocks on said pallet when said blocks in
are embedded in the tops of the concrete blocks.
said second mold group are positioned on corresponding
While I have shown a preferred embodiment of the
blocks on said pallet by said lifting means, said retain
invention it will be understood that the invention is capa
ing rods being adapted to be released 1by said last-men
ble of variation and modi?cation from the form shown
tioned releasable attaching means when said blocks in said
so that its scope should be limited only by the scope of
second mold group are positioned on corresponding
the claims appended hereto.
blocks on said pallet whereby said blocks in said second
What I claim is:
mold group are released therefrom and stacked on the
1. ‘In apparatus for making and stacking concrete blocks 70 blocks on said pallet when ‘said lifting means lifts said
the combination of elongated platform means, a plurality
second mold group away from the last-mentioned blocks.
of concrete block molds adapted to be supported on said
3. In apparatus for making [and stacking concrete
platform means, means for attaching a plurality of said
blocks the combination of elongated platform means, a
molds together to form a plurality of mold groups, said
plurality of tapered concrete block molds adapted to be
molds in said groups having ‘open ends for receiving a 75 supported on said platform means with the small end
2,052,351
8
thereof resting on said platform means, means for at
taching a plurality of said molds together to form a plu
rality of mold groups, each of said groups comprising a '
plurality of parallel rows of molds with tapered spaces
therebetween, said molds in said groups having the large
ends thereof open for receiving a charge of concrete to be
inverting and positioning said second mold group over
the concrete blocks positioned ‘on said pallet so that the
large ends of the blocks from said second mold group
rest on the small ends of the blocks positioned on said
pallet, said retaining rods being adapted to project into
’ spaces between the blocks on said pallet when said blocks
in said second mold group are positioned on correspond
ing blocks on said pallet by said lifting means, said re
taining rods being adapted to be released by said last
taching means for releasably attaching said pallet to said
?rst mold group, lifting means, means for attaching said 10 mentioned releasable attaching means when said blocks
set into concrete blocks, a pallet positioned over the
open ends of the molds of a ?rst one of said groups7 at
in said second mold group are positioned on correspond
ing blocks ‘on said pallet whereby said blocks in said sec
ond mold group are released therefrom and stacked on
the blocks on said pallet when said lifting ‘means lifts
pallet and released therefrom when said ?rst-mentioned
attaching means is detached therefrom, said concrete 15 said second mold group away from the last-mentioned
blocks being positioned on said pallet in spaced apart yre
blocks.
lation with the large ends of the blocks resting on said
References Cited in the ?le of this patent
pallet, a plurality of block retaining rods positioned over
portions of the open ends of a second one of said mold
UNITED STATES PATENTS
groups such that each retaining rod extends over parts
986,266
Carter et al. __________ .._ Mar. 7, 1911
of the tops of the concrete blocks in adjacent rows of
1,493,732
Camp _______________ __ May 13, 1924
the molds of said second group, means for releasably
2,006,594
Hoch _________________ __ July 2, 1935
attaching said retaining rods to said second mold group,
2,131,474
Henderson ___________ _._ Sept. 27, 1938
for retaining said blocks in the molds when the mold
FOREIGN PATENTS
group is inverted, means for attaching said lifting means 25
150,890
Sweden
______________ __ July 26, 1955
substantially to the center of said second mold group for
lifting means substantially to the center of said first mold
group for lifting and inverting said ?rst mold group so
that the concrete blocks therein are invented onto said
.14--
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