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Патент USA US3061963

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Nov. 6, 1962
M. CARELLO
_
PLANT COMPRISING A MECHANICAL
SELF-MOVING
CONTINUOUSLY W0RKING SALT GATHERING
Filed Sapt. 17, 1959 MACHINE IN ARTIFICIAL SALT~MARSHES
3,061,953
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M. CARELLO
SELF-MOVING PLANT COMPRISING A MECHANICAL - 3,061,953
CONTINUOUSLY WORKING SALT GATHERING
Flled Sept. 17, 1959 MACHINE IN ARTIFICIAL SALT-MARSHES
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SELF-MOVING PLANT COMPRISING A MECHANICAL
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Filed Sept. 17, 1959 MACHINE IN ARTIFICIAL SALT~MARSHES
3,061,953
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M. CARELLO
3,061,953
SELF-MOVING PLANT COMPRISING A MECHANICAL
CONTINUOUSLY WORKING SALT GATHERING
Filed Sept. 17, 1959 MACHINE IN ARTIFICIAL SALT-MARSHES
7 Sheets-Sheet 4
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Nov. 6, 1962
M. CARELLO
3,061,953
SELF- MOVING PLANT COMPRISING A MECHANICAL
,
CONTINUOUSLY WORKING SALT GATHERING
MACHINE‘ IN ARTIFICIAL SALT-MARSHES
Filed Sept. 17, 1959
Téheéts-Sheet e
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Nov. 6, 1962
M. CARELLO
SELF-MOVING PLANT COMPRISING A MECHANICAL
CONTINUOUSLY WORKING SALT GATHERING
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3,061,953
MACHINE IN ARTIFICIAL SALT-MARSHES
Filed Sept. 17, 1959 ,
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Unite States Patent O??ce
1
3,061,953
SELF-MOVING PLANT COMPRISING A ME
CHANICAL CONTINUSUSLY WORKING
SALT GATHERING MACHINE IN ARTIFI
CIAL SALT-MARSHES
Montrose Carello, Via Sant’ Ambrogio 20, Turin, Italy
Filed Sept. 17, 1959, Ser. No. 840,560
Claims priority, application Italy Dot. 2.5, 1958
9 Claims. ((Il. 37-1)
The present invention relates to salt gathering appara
tus.
An important object of the invention is to provide an
apparatus for removing strips of salt from a salt bank
which is constructed and assembled in such a way that
the material it removes from a salt bank contains a small
percentage of impurities and need not be subjected to a
complex washing treatment.
Another object of the invention is to provide an ap
paratus of the just outlined characteristics which does not
damage the bottom of the salt bank, whose output is
greater than the output of apparatus of which I am aware
at this time, and which requires little supervision when
put to actual use.
The invention will be described in greater detail with
reference to the accompanying drawings, in which:
FIG. 1 is a side elevational view of a portion of a
salt gathering apparatus embodying the invention;
vFIGURES 1a and lb are the forward and rearward
extensions respectively of the portion of the apparatus
shown in FIG. 1;
FIG. 2 is a top plan view of the apparatus shown in
FIG. 1;
FIGURES 2a and 2b are top plan views of FIGS. 1a
and 111 respectively;
FIG. 3 is an enlarged fragmentary partly elevational
and partly sectional view of the track which forms part
of the apparatus;
FIG. 4 is a further enlarged fragmentary partly eleva
tional and partly sectional detailed view of the structure
shown in FIG. 3;
FIG. 5 is a somewhat diagrammatic view of a salt
scraping tool in a position it assumes when put to actual
use;
3,061,953
Patented Nov. 6, 1962
2
or boss 15 whose ends are non-rotatably connected to
bearing sleeves or bushes 13a provided in and rigid with
the adjacent end portions or heads of the sections of the
tubular component.
The means for non-rotatably connecting the bushes 13a
with the respective ends of the boss 15 comprises keys or
cotters 16 which extend into complementary cutouts pro
vided in the periphery of the boss and in the walls of
annular bores formed in the bushes 13a. The bosses 15
10 serve as a means for coaxially connecting the sections of
the tubular components 13 end-to-end and in such a way
that all sections of each component constitute a rigid unit
which is rotatable with respect to the collars 14.
The rigidity of the track 13, 13 is maintained even if
the cotters 16 are removed, i.e. even if the bosses 15
are free to rotate in the respective bushes 13a, because
the framework 11 is sufficiently rigid to hold the sections
of the tubular components 13 in axial alignment with each
other.
The collars 14 and the griders 11a are spaced uni
formly in the longitudinal direction of the track whose
length may be in the range of say 50 meters. As shown
in FIG. 1, the track may consist of two sections which are
connected to each other by loose joints A so that the
track sections connected by these joints may perform in
dependent translatory movements to thereby permit axial
alignment of the apparatus.
The trans‘latory movements of the two track sections
connected by the joint A (Le. a rolling of tubular com
ponents 13 along the ground) are brought about by ro~
tating means including two speed reducing units 17 which
are driven by the motors of the conveyor 12, by separate
electric motors, or by separate internal combustion en
gmes.
The reducing units 17 transmit motion to suitable con
trol and engaging devices which in turn drive chains pass
ing about sprockets 18 one of which is shown in FIG. 4.
Each sprocket 18 is mounted on a boss 15'. The sprocket
18 is received in a short cylinder which extends between
a pair of collars 14 in which the boss 15 is free to rotate.
The sprocket 18 and the boss 15 constitute means for
transmitting motion from a reducing unit 17 to the tubu
lar components 13. Two or more such motion trans
mitting means may be provided for each section of the
FIG. 6 is a greatly enlarged fragmentary side eleva 45 track, depending on the length and on the weight of the
tiona’l view of an oscillating frame which forms part of
apparatus.
the salt gathering apparatus;
The head conveyor 12 is driven by electric motors or
FIG. 7 is a greatly enlarged transverse section through
internal combustion engines through a reducing unit
the apparatus; and
which comprises a counter pulley 19 cooperating with a
FIG. 8 is a top plan view of a salt stripping machine 50 second counter pulley 20‘ to drive the conveyor 12. The
which forms part of the apparatus.
longitudinal ends of the upper conveyor run 12a are in
Referring now in greater detail to the drawings and
clined in downward direction owing to the provision of
?rst to FIGS. 1 and 2, there is shown an apparatus for
guide rolls which de?ect the conveyor run 12a and owing
removing strips of salt from a salt bank which comprises
to the fact that the pulleys 19, 20' are located at a level
an elongated framework 11 supporting at its top the 55 below the guide rolls.
upper run of a ?rst or head conveyor 12, this conveyor
As shown in FIG. 1, the pulley 20‘ may extend be
serving as a means for moving salt longitudinally of the
neath the discharge end of a similar second apparatus
framework 11. The framework rotatably supports two
(shown in broken lines) and the pulley 19 may extend
elongated tubular ground contacting components 13 each
above the intake end of a third apparatus (shown in
of which consists of several sections arranged end to end. 60 broken lines at the right-hand end of FIG. 1) when it is
The tubular components 13 together constitute an elon
desired to build up a composite structure comprising a
gated track. The coaxial sections of the tubular com
plurality of apparatus of the type shown in FIG. 2.
ponents 13 are joined in a manner shown in FIGS. 3 and
The rotary tubular components 13 serve as a means
4. Referring first to FIG. 3, the sections of a tubular
for moving the apparatus in a direction transverse to the
component are separated by an intermediate collar 14 65 longitudinal direction of the framework 11 when their
whose outer diameter approaches the outer diameters of
sprockets 18 are driven by the reducing units 17, and the
the sections. The transversely aligned collars 14‘ of the
components 13 further serve as rails for guiding a strip
two tubular components 13- are rigidly connected to each
ping or salt gathering machine B so that this machine
other by transversely extending pro?led horizontal cross
may move in the longitudinal direction of the apparatus.
girders 110 which form part of the framework 11. Each 70
The stripping machine B is shown in FIGS. 1, 2 and
collar 14 rotatably receives a coaxial coupling element
6—8. It comprises a motor frame 21 supported on four
3,061,953
3
wheels 23 which are mounted for travel longitudinally of
the tubular components 13 (see FIG. 7). The wheels 23
are centered on the respective components 13 by lateral
rollers 23a which are mounted on brackets secured to
the frame 21. As best seen in FIG. 7, the rollers 23a
engage the outer sides of the respective components 13
and thus prevent lateral displacements of the stripping
machine B even if the components 13 are rotated about
4
(FIG. 8) meshing with a bevel gear 43a connected with
one end of a drive shaft 43 whose other end carries a
second bevel gear 44 meshing with a bevel gear 45
secured to a boss 46 journalled in the frame 21a and
connected ‘with a steering wheel 47.
The oscillating frame 21a is provided at each of its
ends with a shovel shaped salt scraping and collecting
tool 48 (see FIGS. 1, 5 and 6) of arcuate shape whose
front portion or cutting edge 48a is located at a level
above its central portion 48b. The inclination of the
10
about lateral displacements of the apparatus. The frame
their respective axes when the operator desires to bring
21 of the machine B is connected with an oscillating
frame 21a which is laterally adjacent to the track 13, 13
and which carries two salt removing means each provided
at one longitudinal end of the frame 21a. The frame
21a is oscillatable about the horizontal axis of a trans
versely extending shaft 22, best shown in FIGS. 6 and 8,
this shaft being journaled in the machine frame 21.
Each salt removing means comprises a drum 24 which
is rotatable about a transverse shaft mounted at one
edge 48 with respect to a horizontal plane when the re
spective end of the oscillating frame 21a moves into
ground contacting position is preferably between 24
degrees. This is indicated with some exaggeration by the
The edge 48a is located at the
15 angle alpha in FIG. 5.
level of the bottom D of a salt bank C.
The various motion transmitting elements will be de
scribed duriug the following description of the operation
of my apparatus. Such elements are shown rather sche
longitudinal end of the oscillating frame 21a and which 20 matically because their exact construction forms no part
of this invention.
is provided with substantially bucket-shaped salt crush
The apparatus is operated as follows:
ing and comminuting members 24a.
The parts of the apparatus may be assembled at the
When the oscillating frame 21a assumes the operative
locale of actual use and, to that end, the apparatus pref
position of FIG. 6 and moves with the frame 21 in a
erably consists of parts which may be readily taken apart
direction to the right, as indicated by the arrow X, the
and which may be conveniently reassembled when neces
right-hand drum 24 will extend downwardly to the level
sary. Before assembling the apparatus preparatory to
of a shovel 48 (FIG. 5). Forwardly of the drum 24,
removal of a salt bank, a strip of salt of a width corre
there is provided a salt cutting means in the form of a
sponding to the width of the track 13, 13 is removed
circular saw 25 which, as clearly shown in FIG. 8, is
located in a plane slightly lateral of the outermost salt 30 from the bank so that the tubular components 13 may be
placed onto the bottom D from which the salt layer was
collecting member 24a, i.e. the collecting members 24a
removed in a preceding step either by hand or in any
are located between the plane of the saw 25 and the
other suitable way. The length of the tubular compo
nearest tubular component 13.
Rearwardly adjacent to the drum 24, there is provided
nents 13 normally approximates the length of the salt
to drive a second endless belt conveyor 27. The rollers
26, 26a are mounted at the longitudinal ends of a smaller
lowed by the mounting of the stripping machine 13 at
a roller 26 which cooperates with a similar roller 26a 35 bank.
The sections of the track are thereupon assem
bled and connected to each other by the joints A, fol
one longitudinal end of the assembled track so that the
oscillating frame 28 which is oscillatable about the hori
zontal axis of a transversely extending shaft 29 supported 40 machine may travel toward the other longitudinal end
of the tubular components 13. The operator then swings
in the frame 21a in such a way that the inclination of
the frame 28 and hence of the conveyor 27 may be ad
justed independently of the inclination of the frame 21a.
The frame 28 carries rollers 26b which serve as a means
for maintaining the conveyor 27 under requisite tension.
The stripping machine B further comprises a pair of
transversely extending auxiliary conveyors 30 which trans
fer the product delivered by the belt conveyor 27 to the
head‘ conveyor 12. Each auxiliary conveyor 30 is
the ‘oscillating frame 21a so that the forward end of
the conveyor 27, i.e. that end which faces the direction of
travel (arrow X in FIG. 6) is moved toward the salt
bank. In the next step, the operator secures the lower
ends of the arms 41 to the forward end of the oscillating
frame 21a by inserting the pegs 42 through the eyes
formed at the lower ends of the arms 41 so as to lock
the frame 21a in the position of FIG. 6. The auxiliary
mounted on the frame 21 for travel about a pair of 50 conveyors 30 are movable transversely of the machine B
on rollers which are mounted in the frame 21, and one
spaced rollers 30a (see FIG. 8) which are supported by
auxiliary conveyor frames 3%. The auxiliary conveyors
of these conveyors (i.e. the left hand auxiliary conveyor
30 are located at a level above the upper run 12a of the
30 as seen in FIG. 8) is moved beneath the lifted rear
38 provided with eccentrics 39 for straps 40, the latter
machine B may be arrested while the conveyor 12 con
end of the band conveyor 27 so that the material ad~
head conveyor 12 and receive salt from that end of the
vancing upwardly on the upper run of the conveyor 27
belt conveyor 27 which is lifted above the ground.
55
may drop onto the conveyor 30 therebelow and will be
The means for driving the rollers 30a of the conveyors
advanced onto the head conveyor 12. When the front
30 comprises bevel gears 31 which are driven by chain
arms
41 are secured to the oscillating frame 21a, the
sprockets 33 through suitable couplings 32. The arrange
conveyor 27 encloses an acute angle #3 with a horizontal
ment is such (see FIG. 8) that only one transverse con
plane as is shown in FIG. 6. The operator then starts
veyor 30 is driven at a time.
60
the motor 37 to drive the shaft 22 and the gears 37a
The sprockets 33 are driven by chains 34 passing about
so as to simultaneously rotate the shaft 36 which latter
sprockets 35 mounted on a transversely extending drive
is coaxial with the shaft 22. The clutch assemblies 49,
shaft 36 which is driven by a power source 37 shown
shown in FIG. 8, drivingly connect the shaft 36 with
in FIG. 2, e.g. an electric motor or an internal combus
tion engine. The connection between the motor 37 and 65 pairs of bevel gears 50 which are mounted on shafts 51.
These shafts carry bevel gears 52 which mesh with and
the shaft 36 comprises a series of spur gears 37a shown in
thereby drive the wheels 23 mounted on the tubular
FIG. 8.
components 13. The clutch assemblies 49 may discon
At each of its longitudinal ends, the frame 21a of the
nect the shafts 51 from the shaft 36 so that the stripping
stripping machine B carries a transversely extending shaft
connected with eccentric rods or arms 41 rigidly secured
to each other by a transversely extending crossbar 41a.
The free ends of the arms 41 are connected with the
respective end of the oscillating frame 21a by locking
pins or pegs 42. Each shaft 38 carries a bevel gear 38a
tinues to advance salt in the longitudinal direction of
the apparatus. This is necessary when the machine B
completes the removal of a salt strip from the bank C
while some salt still remains on the upper conveyor run
12a.
5
3,061,953
6
The transverse conveyors 30 are driven by the afore
mentioned chains 34 through sprockets 35 on the shaft
36 through sprockets 33 and through clutch assemblies
32 which latter permit disconnection of the one or the
other conveyor 30 so that only one conveyor (the left
hand conveyor 30 of FIG. 8) is actually driven when the
taining said tubular components in spaced position in
such manner that the components are rotatable with
respect to the framework; means for rotating said com
ponents and for thereby moving the track in directions
transverse to the longitudinal direction of said compo
nents; ?rst conveyor means mounted on said framework
apparatus is in use.
The shaft 22 drives the drums 24 and the circular saw
for moving salt longitudinally of said components; a
stripping machine for removing salt from the bank, said
stripping machine comprising means mounted for travel
longitudinally of said components, means for moving
25 through its sprockets 53, through sprockets 55, 56 on
the shafts of the drums, through sprockets 5-8 on the
shafts of the saws, through chains 54 which pass about
the sprockets 53, 55 and through chains 57 which pass
said machine longitudinally of said components, an oscil
lating frame pivotable about an axis perpendicular to
about the sprockets 56, 58.
the longitudinal direction of said components and located
The operator controls the steering wheel 47 while
laterally of said track, and salt removing means mounted
occupying one of the seats 5?, i.e. the left hand seat when 15 at each longitudinal end of said oscillating frame for
the machine B moves to the right, as viewed in PEG. 2, and
alternately removing a strip of salt from the salt bank
the right-hand seat when the machine B moves in the
while the machine is advanced longitudinally of said com
opposite direction.
ponents in a ?rst and second direction, respectively; and
By turning the steering Wheel 47, the driver may adjust
second conveyor means for delivering salt stripped by
the position of the cutting edge 48a with respect to the
said salt removing means from said oscillating frame
bottom D of the salt bank C (see FIG. 5) while the
onto said ?rst conveyor means.
machine B advances along the track 13, 13. The opera
2. An apparatus as set forth in claim 1, wherein said
tive connection between the wheel 47 and the scraping
second conveyor means comprises a pair of spaced trans
tools 48 comprises the aforementioned gears 44, 45, the
versely extending auxiliary conveyors mounted on said
shafts 43, the gears 38a, 43a, the shafts 38, the straps 25 stripping machine for alternately delivering salt to said
40, the eccentrics 319 and the arms 41. The pressure
?rst conveyor means when the stripping machine is re
transmitted by the steering wheel 47 to the momentarily
spectively advanced in said ?rst and second directions,
operative tool 48 will vary in dependency on the ?rm
and an endless belt conveyor mounted on said oscillating
ness of the bottom D. The edge 48a is led between the
frame for alternately delivering salt from the salt remov
salt bank C and the bottom D and the arcuate median 30 ing means located at the opposite longitudinal ends of
portion 48b of the scraping tool actually compresses the
said oscillating frame to one of said auxiliary conveyors.
3. An apparatus as set forth in claim 2, wherein said
endless belt conveyor comprises an oscillating frame
mounted on and adjustable with respect to said ?rst
bottom in a manner shown in FIG. 5.
The saw 25 cuts into the bank C to separate there
from a strip which is subsequently removed by the tool
48. The comminuting members 24a are rotated by the 35 named oscillating frame.
drum 24 to crush the strip lifted by the scraping tool 48
4. An apparatus as set forth in claim 1, wherein each
and to transfer the comminuted material unto the con
veyor ‘27 which advances the material onto one of the
of said salt removing means comprises a substantially
shovel shaped arcuate scraping tool and further com—
auxiliary conveyors 30 and the latter thereupon trans
prising means including a steering wheel for vertically
fers the material onto the upper run 12a of the head 40 adjusting the position of said scraping tool with respect
conveyor 12. The conveyor 12 delivers salt onto a pile
to the salt bank.
or into suitable carriages, not shown.
5. An apparatus as set forth in claim 4, wherein each
When the machine B has completed a run along the
of said salt removing means comprises a rotary drum and
track 13, 13 the track is moved transversely toward the
comminuting members connected with said drum for
crushing the strip of salt removed from the bank by the
salt bank. The sections of the track are aligned once
more and the oscillating frame 21a is tilted in the oppo
site direction so that the machine B is ready to begin a
new run along the track to remove a next strip of salt
respective scraping tool.
6. An apparatus as set forth in claim 4, wherein each
of said salt removing means comprises a circular saw
from the bank.
for separating a strip from the salt bank in advance of
The bottom D onto which the apparatus is advanced 50 the respective scraping tool.
upon removal of a salt strip is free of salt and is com
7. An apparatus as set forth in claim 1, wherein each
pressed or compacted by the tubular components 13 so
of said tubular components comprises a plurality of
that it is ready for the formation of a new salt layer
sections arranged end to end, and further comprising
thereon without necessitating any treatment preliminary
to the formation of a new salt layer.
55
The operation of my apparatus may be controlled by
two operators; one operator is in charge of the motors
and the other operator controls the steering wheel 47.
coupling elements for coaxially connecting said sections.
8. An apparatus as set forth in claim 7, further com
prising a collar rotatably receiving each of said coupling
elements and means including girders for connecting the
collars to said framework.
Without further analysis, the foregoing will so fully
9. An apparatus as set forth in claim 8, wherein the
reveal the gift of the present invention that others can, 60 means for rotating said components comprises sprockets
by applying current knowledge, readily adapt it for vari
ous applications without omitting features that, from the
standpoint of prior art, fairly constitute essential charac
connected to said coupling elements and cotters for non
. rotatably connecting the coupling elements to the respec
tive sections.
teristics of the generic and speci?c aspects of this inven
tion and therefore, such adaptations should and are 65
intended to be comprehended within the meaning and
References (Iitetl in the ?le of this patent
range of equivalence of the following claims.
1,134,615
Iclaim:
2,689,716
1. An apparatus for removing strips of salt from a
salt bank, said apparatus comprising, in combination, an 70
elongated track comprising at least two spaced tubular
822,238
ground contacting components and a framework for main
1,005,486
UNITED STATES PATENTS
Jefferies ______________ __ Apr. 6, 1915
Bainbridge ___________ __ Sept. 21, 1954
FOREIGN PATENTS
France ______________ __ Sept. 13, 1937
France ______________ __ Dec. 26, 1951
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