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Патент USA US2119540

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June 7, 1938.
H. B.‘ HOLMES ET AL
,
2,119,540
METHOD AND APPARATUS FOR TRANSFERRING'MIGRATORY FISH OVER A DAM STRUCTURE
Filed June 2, 19:57
'
9 Sheets-Sheet 1
IN VEN'TOR
'Br
ELMMJ
HIS AZ'TORNEY
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I
\
June 7, 1938.
- H. B. HOLMES ET AL
2,119,540
METHOD AND APléARATUS FOR TRANSFERRING XVIIGRATORY FISH OVER A DAM STRUCTURE
'
‘Filed Ju‘ne 2, 19:57
‘
,9 Sheets-Sheet 2
‘F1632
IN VEN TOR
HIS ATTORNEY
June ‘7, ‘1938.
H. B. HOLMES 5“
2,119,540 7
METHOD AND APPARATUS FOR TRANSFERRING MIGRATORY FISH OVER A DAM STRUCTURE
'
‘
Filed June 2.
1937
9 Sheets-Sheet 5
‘FIG. 3
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arid/V120 6,’
H/s ATTORNEY
June 7, 1938.
2,1 19,540
H. B. HOLMES El‘ AL
METHOD AND APPARATUS FOR TRANSFERRING MIGRATORY FISH OVER A DAM‘ STRUCTURE
‘Filled June 2, 1957
WM
9 'She/ets-Shee‘t 4
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. 5/204
H/s
ATTORNEY
June 7, I938.
'
H. B. HOLMES ET AL
' ‘
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2,119,540
METHOD AND APPARATUS FOR TRANSFERRING MIGRATQRYIFISH OVER A DAM ‘STRUCTURE
Filed June 2, 19737
9 Sheets-Sheet 5
5FIG.-
/N VEN TOR
BY Z/Mv
HIS
Arron/v5)’
June 7, 1938.
H. B. HOLMES ET AL
_ 2,119,540
METHOD AND APPARATUS FOR‘ TRANSE‘ERRING MIGRATORY FISH OVER A DAM STRUCTURE
9 Sheets-Sheet 6
Filed June 2, 1937
Fla.8
Q/M-W
,
HIS’
ATTORNEY
J1me 7, '1938.
H. B. HOLMES El‘ AL
'
2,119,540
METHOD AND APPARATUS FOR TRANSFERRING MIGRATORY FISH OVER A DAM STRUCTURE
Filed June 2, 1937
9 Sheets-Sheet 7
H/s Arron/v5)’
June 7, 1938.
'
H_ B, HOLMES Er AL.
2,119,540
METHOD AND APPARATUS FOR TRANSFERRING MIGRATORY'FISH OVER A DAM STRUCTURE‘
‘Filed June 2, 1937
V
9 Sheets-Sheet 8
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IN VENTOR
BY
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June 7, 1938.
H. B'.‘ HOLMES ET AL
Fiied June 2. 1957
2,119,540
9 sheets-sheet 9
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Patented June 7, 1938
Ii
UNITED STATES PATENT lorries
2,119,540
IMETHOD AND APPARATUS I FOR TRANS
‘ FEBRING MIGRATORY FISH OVER A DAM
STRUCTURE
Harlan B. Holmes- and Henry F. Blood, Portland,
Oreg., and Milo C. Bell, Seattle, Wash, as
signors to United States of America as repre
sented by the Secretary of War
,
Application June 2, 1937, Serial No. 146,016
as Claims. .(01. 61--21)_
(Granted under the act of March‘ 3, 1888, as
. .
amended April 30, 1928; 370 0. G. 757)
This invention described herein may be manu-
at a higher water level by producing a flow of
factured and used-by or for the Government for
governmental purposes, without the payment to
water against which the ?sh may swim and by
gently urging the ?sh toward the exit.
us of any royalty thereon.
5
.
’
Our invention relates to improvements in the
look type of ?shway for conveying migratory ?sh
past dams and other obstructions. It relates especially to methods and structures for improving
the hydraulic attraction to lure ?sh into the lock
10 chamber and to secure their departure therefrom
at a higher level without injury to them.
A still further object of our invention isto pro
vide a system of ?shlocks in which by the alter- 5
nate operation of the two ?shlocks, one look
chamber is constantly Open forthe entrance of
?sh and is discharging a continuous ?ow ofwater
therefrom to attract the fish .into the lock
chamber.
-
10
Other objects and objects relating to details of
'
Migratory ?sh, especially the active ?sh such construction, combination and arrangement of
as salmon and trout, in seeking a route of passage‘ parts will hereinafter appear in the detailed de-.
at an obstruction, are attracted by continuously - scription to follow.
15_ ?owing water of moderate velocity. They hesitate
' The drawings hereinafter referred to represent 15
to enter areas of intermittent flow especially and
are not readily attracted to areas in which the
?ow is extremely variable.
It has also been found that when ?sh are dis20 turbed while con?ned, as in the chamber of a
an actual rather than an ideal embodiment of
our invention and as so presented details of design
have been in?uenced by structural, space, and
location requirements and in some instances in- l
clude novel structural features of others which 20
?shlock, their tendency is to lie quietly in the
have been made the subject 01’ Separate Patent’
bottom of the con?ning area, evidently attempts
ing to hide from the disturbing in?uence.
applications which we do not claim as part Of 4
our invention.
These traits and habits of the ?sh have not
:5 been given adequate consideration in previous
designs of ?shlocks, and as a result such ?shlocks have had very little success except at very
low dams and with the more sluggish varieties
of ?sh.
in)
In previous known designs of flshlocks, drainage of the lock chamber has been accomplished
by discharging the water directly from the lock
'chamber into the tailrace at a point in immediate proximity to the ?sh entrance to the lock. As
3.3 a result there is produced in the discharge area
a sudden surge of water at high velocity as the
lock starts to drain. The quantity of water ?owing from the lock chamber decreases as the chamg
ber empties and ceases entirely when the lock
.; J entrance is closed for lockag'e.
Previous known designs have in some instances
provided means of assuring that the ?sh will
reach the higher water level in the lock chamber
but none has provided an auxiliary mechanical
2‘» means of assuring the departure of the ?sh from
the ‘vol: chamber into the forebay, such as by
shoaling.
’
I
Referring more particularly to the accompany
ing drawings in which corresponding parts are 25
indicated by similar reference characters:
Figure 1 is a fragmentary plan View, partly in
section, of an actual embodiment of the inven
tlon shown in connection with a dam structure
having relatively great Variations in tailra-ce and 30
forebay elevations. In this view, operating mech
anisms, walkways, and the like have been omitted
toclarify the design of thestructure;
Figure 2 is a transverse sectional fragmentary
view of the device shown in Figure 1, taken sub- 35
stantially along the line 2--2 and in the direction
indicated. In this view the elevators, etc. have _
been omitted;
Figure 3 is a transverse sectional fragmentary
view of the device shown in Figure 1, taken sub- 49
stantial‘ly along the line 3—-—3 and in the direction.
indicated;
_
Figure 4 is a transverse sectional fragmentary
view of the device shown in Figure 1, taken sub
stantially along the line 4—4 and in the direction 45
indicated;
Figure 5 is a vertical sectional view of the device
With these defects in previous known designs in
shown in Figure 1, taken substantially along the
mind, an important object of our invention is to
line 5—5 and in the direction indicated;
. ’
. 5:» improve the attractiveness of the entrance to a >
Figure 6 is a vertical sectional view of the de- 50
system of ?shlocks by providing a continuous and
vice shown in Figure 1, taken substantially along
relatively uniform ?ow of water to lure the ?sh
the line 6-6 and in the direction indicated;
into the lock, chamber.
" I
A further object of our’ invention is to assure
5,; the departure of the fish from the lock chamber
‘
Figure 7 is a vertical sectional view of the de
vice shown in Figure 1, taken substantially along
the line '|—‘l and in the direction indicatedft
55
t
'
2
’
I
‘
2,119,540
Figure 8 is a vertical sectional view of the de
- vice shown in Figure 1, taken substantially along
the line 8—8 in the direction'indicated.
This
' view discloses the disposition of ?sh lift and gate
' parts under conditions of operation corresponding
to mean elevations of tailrace and of forebay
(30) is in open conmiunication with the well ( 24)
via opening (3|).I
.
The flow of water’into the ?shlocks (2) and ( 3)
is suitably distributed and diffused to avoid the
formationof objectionable eddies or cross-cur
C11
rents. The primary flow into the fishlocks is
distributed by a suitable diversion wall, shown
Figure 9 is a view of the subject matter shown I as (32) in the ?shlock (2) and (33) in the ?sh
m Figure 8 and showing the disposition of ?sh lock (3). Suitable 'baiiies (34)‘ may be used to
10 lift and gate parts under conditions of operation
further distribute the water.
-
levels;
corresponding to low elevations of tailrace and
of forebay levels;
‘ Figure 10 is a view of the subject matter shown
in Figure 8 and showing the disposition of ?sh
15 lift and gate parts under conditions of operation
corresponding to high elevations of tailrace and
of forebay levels;
Figure 11 is a fragmentary vertical sectional
view of the fish lift on an enlarged scale showing
20 the details of lift retention and of the relation
between the lift and the telescoping barrier. In
this view, all of the accessory mechanism has been
omitted; and
Figure 12 is an isometric fragmentary projeci
tion of the ‘?sh lift in position to receive ?sh, and
disclosing details of construction of the ?sh trap
associated therewith.
In Figure ‘1 is shown an actual embodiment of
the ?shlock structure incorporated in a dam
30 structure ( |) . A plurality of ?shlocks,- here
shown as two in number, (2) and (3), are suit
ably arranged in gate controlled communication
with an entry bay (4) and a forebay (5).
The ?shlocks (2) and (3) are each provided
35 with suitable water supply means. »
For the ?shlock (2), water from the forebay
(5) is admitted through an aperture (6) to a
well' (1) having a portal (8) at its bottom. A
tainter valve (9) located in tainter valve pit (l0) ,
adjacent to well (1) , controls the ‘portal (8). The
tainter valve (9) is actuated by suitable means
as mechanism (I I). A conduit (l2) effects open
communication between the tainter valve pit ;( | 0)
and the‘lock (2) . This condition is best disclosed
45 in Figure '1, wherein the tainter valve (9) is shown
in opened position.
For the ?shlock (3), water from the forebay
U(5) is admitted through an aperture (l3) to a
well'(|4) having a portal (l5) at its bottom. A
(32) and (33) are not symmetrical in‘the struc
ture shown in Figure 1, this ‘divergence is a.
matter of structural limitation only, and is not
to be construed as being necessaryv to the func
tioning of the invention.
'
>
Apertured partitions (35) are disposed in a
substantially vhorizontal plane across each of the
?shlocks at an elevation slightly'above that of
the 'water- inlet conduits (l2) and (I9). Other
tovand spaced‘ apart from the partitions (35) are
likewise disposed across each of the fishlocks
above the partitions (35). The apertured parti
tions (35) and (36) are effective in adequately
di?uslng the water ?ow into the ?shlocks, mini
mizing eddies and cross-currents.
The well (24‘) vin additionv to receiving water
discharged from the ?shlocks (2) and‘ (3), via
the openings (25) and (3|), also receives water '
directly from the forebay (5) . Aperture (31),
located at the lower portion of the well (24) , pro
vides communication with adjacent tainter valve
pit (38). A tainter valve (39) is disposed in the
tainter valve pit (38) andin controlling juxtapo- I
sition with aperture (40) leading to the forebay
(5). . The tainter valve (39) is suitably actuated
by the mechanism (4|). This condition isbest
shown in Figure 5, in which the tainter valve
(39) is shown in opened position.
w
>
A baffle (42), disposed‘ transversely through
well (24) at a position between the openings (25)
and (3|), is provided with a stepped crest (43).
The entry bay (4) which is in gate controlled
communication with the ?shlocks (2) and (3) , is 45
an open conduit leading from zone or zones of
?sh concentration in the tailrace, and provides a
channel whereby the ?sh may readily approach
the ?shlocks. The entry bay is provided with an
apertured sub-?oor (44), through the openings
(I1) adjacent to the well (l4), controls the
portal (IS). The tainter valve (I6) is actuated
through the well (24) viathe mutually diverging
apparatus is best disclosed in Figure 6, where
in the tainter valve (I6) is shown in closed po
sition.
60
'
‘
v
The ?shlocks (2) and (3) are each provide
with suitable drainage means.
'
For the ?shlock (2), water therefrom may pass
through a conduit (20) to a portal (2|). A
tainter valve (22) mounted in a tainter valve
65
pit (23) controls the portal (2|). ‘A well (24) is
in open communication with the tainter valve
pit (23) via opening (25). The tainter valve
(22) is actuated by suitable means as mecha-'
nism (26). This apparatus is best disclosed in
70 Figure 3, wherein the tainter valve (22). is shown
in closed position.
For the ?shlock (3), water therefrom may pass
through a conduit (21) to a portal (28). A taint
er valve (29), mounted in tainter valve pit (30),
75 controls-the portal (28). The tainter valve Pill
‘
apertured partitions (36), substantially parallel
j 50 tainter valve (l6) located in tainter valve pit
by suitable means as mechanism (l8). A com‘
duit (19) effects open communication between
the tainer valve pit ( l1) and the lock (3) . This
10
It is to be noted, that while the diversion walls
of which is discharged all of the water ?owing
conduits (45) and (46)‘. The apertured sub
?oor (44) has superimposed upon and spaced
above it an apertured ?oor (41). Suitable gril—
lage (48) is disposed above the apertured floor
'
(41). The openings in the grillage (48) are of a
size to prevent the passage therethrough of adult
?sh. The structure presented by the mutually
diverging conduits (45) and (46). together -with
the apertured (‘sub-‘?oor (44), the apertured ?oor
(41) and the gr‘illage (48), provides adequate
di?fusion of water ?owing from the well (24),
throughout the entry bay (4).
60
The water sup
plied to the entry bay‘ (4) , via the sub-?oor (44) , G 5
the apertured ?oor (47) and grillage ( 48) , is dis
charged into the entry bay (4) at a su?ic'iently
low velocity to present no counter-attraction to
?sh proceeding to the ?shlocks (2) and (3).
Each of the ?shlocks (2) and (3) is equipped "
with a downstream portal ‘(49) , leadinglfroml‘the
entry bay, (4) , and an upstream portal (50),
leading to the forebay (5).
'
The downstream portal (49) is of a height ‘
su?lcient to encompass the maximum range of
_ 2,115,540
tail-water elevations. A plurality of ‘segmental
3
(18), terminating in restricted apertures (19),
gate units (5|), each vertically slidable in grooves ' which are of a width to permit the passage there
(52), is disposed across the portal (49), effec
through of adult ?sh. The converging walls (18),
tively closing it excepting for an aperture (53).
The aperture (53) may be selectively located to
‘register with the prevailing tail-water elevation.
A closure member (54), adequate to close the
aperture (53), is located contiguous to the seg
mental gate units (5|), and- is vertically slidable
together with a floor structure (89) , and a cell
10 in grooves (55).
‘
The segmental gate units‘ (5|) may be ma
'15
ing structure (8|), are of a suitable grille con
struction to bar the passage therethrough of
adult ?sh. The floor (80), and the ceiling (8|),
of the ?sh trap structure‘(15), are augmented
by a pair of horizontally hinged, spring loaded
grilles (82), each of which is provided with
10
suitable rollers (83) , disposed along the extended
. nipulated as by chain (56) , suitably actuated by
edge thereof. The spring loading of the grilles
means not here. shown. The closure member
(54) may be operated as by cable (51), suitably
actuated as by power operated .drum (58).
The upstream portal (59) is of a height su?i
"(92) is accomplished by any suitable means. as
by tension spring (84). The, purpose of the
hinged grilles (82) is to effectively maintain a
_
fish screen between the body of the ?sh trap
cient to operatively encompass the maximum 3 structure (15) , and the inside face of the down
range of forebay elevations.
A plurality of seg
mental gate units (59), each vertically slidable
20 in grooves (60) , is disposed across the portal (50) ,
stream wall 'of the ?shlock structure, e?ectively
compensating forany variations in the wall con
tour as that existing along the zone of transition
from the wall to the segmental gate units (5|).
effectively closing it excepting for an aperture
A barrier (85), here shown as telescopic, may
(6|). The aperture (6|) may be selectively lo
cated to register with the prevailing forebay i be disposed adjacent to and on the ?shlock side
of the segmental gate units (59). The telescop
elevation.
A closure member (62), adequate to close the ing barrier (86) comprises a plurality of vertical,
25
parallel, spaced grille members'here shown as
aperture (6|), is located contiguous to the seg
mental gate units (59), and is vertically slidable three in number (81), (81a) and (811)), which
are slidably disposed in substantially vertical
in grooves (63).
The segmental units (59) may be manipulated grooves (88), (88a) andg(88b) . The member (81)
is provided at its upper extremity with an in
30 as by a chain (64), suitably actuated by means
not here shown. The closure member (62) may wardly protruding ?nger (89), adapted to en
be operated as by cable (65) , suitably actuated as gagement with the ?sh/lift (61). The member
(81) is further provided with an outwardly pro
by power operated drum (66).
'
The ?shlocks (2) and‘ (3) are each equipped jecting spur (90), adapted to engage the upper
with a ?sh lift (61) . As shown in Figure 11, the margin of the grille member (81a) when elevated
?sh lift (61) is provided with a plurality of roller thereto. The grille member (81a) is likewise pro—
vided with a spur (90a) similarly adapted to en
carriers (68), which are pivotally mounted there
to as by pins (69). The roller carriers (68) are gage the grille member (81b).
The lower- edge of the grille member (81b) is
adapted to engage with suitable rails; as by
straddling I-beams (18) on the downstream wall provided with-a grille toepiece (9|) which ex
of the ?shlock and (10a) on the upstream wall ‘ tends toward the segmental gate units (59), effec
thereof. The spaced relationship between the tively ‘blocking the area therebetween. The con
roller carriers (68) and the I-beams (19) and struction of the telescoping barrier (85) is such
(10a) is preferably such that the ?sh lift (61) is that upon engagement by the ?sh lift (61) of
the ?nger (89), the grille member (,87) is’ele45 given a position of limited obliquity excepting
at its extreme lower limit of travel when it may vated with the ?sh lift. Continued elevation
assume a_ substantially horizontal position, as causes the spur (96) to engage the grille mem
indicated in Figure 9. In the oblique position ber (81a) which in turn is lifted until ‘the spur
(99a) engages the grille member (81b), which in
the higher end of the fish lift (61) is toward the
turn is elevated, until the ?sh lift has'reached
50 downstream portion of the ?shlock, the ?sh lift
its maximum elevation consistent with the pre
sloping downwardly toward the upstream por
tion. The ?sh lift '(61) is floored with a grille vailing forebay level. The purpose of. the barrier
structure (1|), the individual bars (1|a) of (86) is to provide means for excluding the ?sh
which are suf?ciently closely spaced to prevent from the space below the ?sh lift (61) .
In order to facilitate inspection, adjustment,
the passage therethrough of adult ?sh. These
and/or repair of the tainter valve mechanisms
bars are preferably spaced in a direction coin
and of the ?shlocks, suitable means for excluding
ciding with the slope-of the ?sh lift (61) .'
The fish lifts (61) are suspended by means of the forebay and entry bay waters may be pro
pairs of cables (12) and (13), each of which is vided, as emergency gates or stop logs placeable
60 actuated by suitable means as power driven mech
anism (14), permitting selective, independent op
eration of either of the lifts (61).
Each of the ?shlocks (2) and (3) has disposed
' therein a ?sh trap structure (15), which is ver
in grooves (92) and (93). ‘
It is believed from the description heretofore
given that a clear understanding may be had of
the structure and of the assembly of the appa
ratus constituting the present invention.
The
tically movable along the inside face of the down
operation of the apparatus as a whole is as here
stream wall thereof. A plurality of rollers as
(16) is attached to the framework of the ?sh trap
inafter described.
As shown in‘Figure 1, the entry bay (4) , which
- structure (15), and is adapted to engage the I
is the terminus of a suitable collecting means
ported by the ?sh lift (61) via an interposed
roller (11), which is suitably mounted thereon.
The ?sh trap structure (15) is provided with a
resulting in concentration of migrating ?sh there
in, is provided with an adequate water supply,
from the forebay (5) in conjunction with the
drainage and operative discharge from the ?sh
locks (2) and (3), via the conduits (45) and (46);
to retain the migrating ?sh therein. Were the
75 plurality of pairs of inwardly converging walls
water supply to the entry bay (4) limited ‘to they
beam (10), maintaining the vertical alignment
of the ?sh trap structure (15) therewith. The
weight of the fish trap structure (15) is sup
30
Ll
‘ts Ll
50
'
2,119,540,
4 .
discharges from the ?shlocks (z) and ($.11;
would be subjected to wide ?uctuations.
the closure member (92) is manipulated to seal
To ' - the aperture (6|), after which-the tainteravalve
maintain a substantially constant?ow of water
. to the entry bay (4), the ?ow of water from the
forebay (5) through the aperture (49) may be
controlled by suitable regulation of \the tainter
valve (39). As an alternative, not shown in Fig
ure 1, the conduits (45) and (45) may be dis
charged into the tailrace at a point remote from
(22') is further opened, lowering the water level
within the ?shlock (2) , to coincide with the level
of that in the entry bay. Concurrently there
with, the ?sh lift (51) is lowered to its initial
position, bringing the ?sh trap structure (15)
into alignment with the aperture (53). The
tainter valve (22) ‘is then closed, the closure
the ?shlock entrance and the discharge through ‘ member (54) ‘is removed from the aperture (53),
aperture (40) utilized to produce a constant ?ow and the tainter valve (9) is opened su?iciently to
of water to the entry bay (4) by suitably regu-v provide a flow of water for lure purposes through
the aperture (53) into the entry bay (4).
lating tainter valve (39).
’
It is assumed that the ?shlock v(2) is in ‘oper- ' A substantially identical procedure is effected
va'tive'position for receiving migrating ?sh from in the operation of the ?shlock (3), the cycle of 15
the entry bay (4), and that the fishlock (3) is in operation of the two locks being preferably so
operative position for discharging migrating ?sh timed that during the interval that either of them
is in operative position for receiving migrating
into the forebay (5). .Under these conditions a
flow of water from the forebay (5), enters the ?shfrom the entry bay .(4), the other is being
?shlock (2) via aperture‘ (5), the well (1), the subjected to the operations of placing the closure‘
portal (8), past the partially'opened tainter valve member over the downstream‘ aperture, ?lling
(9), through the tainter valve pit (l0), and the with water, elevating the ?sh lift, releasing the
conduit (l2). Water thus admitted during the entrained ?sh, returning the ?sh lift to its initial
interval in which the ?shlock (2) is in position position, discharging the water to entry bay level,
for receiving migratory ?sh is discharged from removing the closure member from the down .25
the ?shlock (2) via the opened aperture (53), stream aperture, and establishing the ?ow of lure
into the entry bay (4). This discharge is prefer
water therefrom. The ?rst named ?shlock then
ably at a rate sui?ciently above that of the water enters upon a cycle of similar operations, the two
supplied by the conduits (45) and (45) to attract ?shlocks alternating in such a manner that, nor
the migrating ?sh from the entry bay (4), into mally, at least one of them is in position to re 30
‘
the ?shlock (2), via the-aperture (19) in the ?sh ceive ?sh at any instant.
The ?ow of water, both discharge and opera-‘
trap structure (15), which is disposed in align
ment with the aperture (53). Upon reaching the tive, from the ?shlocks (2) and (3) into the entry
‘interior of the ?shlock (2), the ?sh ?nd that bay (4) may require augmentation to provide a
they cannot continue their progress upstream ?ow adequate, to attract migratory ?sh thereto. 35
and they normally will attempt to pass back out Such additional water- may be taken from the
forebay (5) into the well (24) via aperture (40),
of the ?shlock in search of another route up
The use of the ?sh trap structure (15)
past tainter valve (39), into tainter valve pit (38) ,
is required to retain the ?sh within the ?sh
lock (2)‘.
and through aperture (31). The baffle (42)
stream.
serves to retard the velocity of ?ow of ' water
‘
After a suitable interval, the closure member thereagainst.
To compensate for the substantial variations '
. (54) is manipulated to seal the aperture (53),
the tainter valve (9) is further opened and the in forebay and tailrace levels, usually prevailing
water level within the ?shlock, (2) is raised until ' in structures of this character, provisions have
been made to regulate the positions of the aper 45
45 it coincides with thatvof the forebay (5) .' During
this operation the ?sh lift (61) is elevated at a tures through the upstream and ‘the downstream
‘rate substantially equal to that of the rising
water level within the ?shlock (61) , thus assuring
that the ?sh will rise with the water to the eleva
portals of the ?shlocks.
'
,
>
Let it be assumed that conditions of mean‘
forebay and tailrace elevations prevail, resulting
‘in ?shlock' operation adjustments as shown in
?sh lift. (61) is preferably terminated when the Figure 8. In'this view the aperture (53) , ofvthe
upstream edge thereof has reached an elevation downstream portal (49), is preferably so regu
substantially that of the sill of the aperture (5|). lated with reference to entry bay level (94) that
Upon the attainment of equilibrium between the
it extends downwardly from a position at or
forebay level and the water level within the ?sh
slightly above the level (94). This regulation is
lock, the closure member (62) is manipulated to accomplished by appropriate positioning of seg
uncover the aperture (5|), establishing open com
mental gateunits (5|). It is to be noted that
munication between the forebay (5) and the in
the ?sh lift (51) , in its lowered position, as indi
terior of the ?shlock (2) , permitting egress of
cated by broken lines in this view, is so placed
the ?sh therefrom. To provide a de?nite current that the ?sh trap structure (15) is located in
of water against which the ?sh can proceed, the alignment with the aperture (53)‘; The aperture
tainter valve (22) is slightly opened. This causes _ (6|) of the upstream portal (50) is preferably so
a ?ow of water from the ?shlock (2) into the well regulated with reference to the forebay level (95)
(24) , and a corresponding flow of water from the
that it extends downwardly from a position at or
forebay (5) into the ?shlock (2). To prevent the slightly above the level (95). This regulation is
passage of ?sh into that portion of the ?shlock accomplished by appropriate positioning of the
50 tion of the lock exit. I The upward travel of the
'
.
55
60
.65
‘ (2) under the ?sh lift (61), the barrier (56.) is
provided. To insure departure of all of the ?sh
from the ?shlock (2), the ?sh lift (61) may be
further elevated until the grille ?oor (1|) there
of is above the ‘water level, as shown fragmen
tarily in dottedout‘line inthe uppermost position
of the ?sh lift (61) ‘in Figure 9, thus gently urging
the ?sh toward the exit.
75.
.
'
After the ?sh have departed from the ?shlock,
segmental gate'units (59) . It is to be noted that _
the ?sh lift, in its initial elevated position as .
shown in this ?gure, is so situated that its up
stream edge is slightly above the sill (91) of the 70
aperture (5|). It is to be further noted that the e
telescoping barrier-(86) , depending from the edge
(95) of the ?sh lift (61) , effectually seals the in-‘
terval between the edge ('95) and the sill (91)
against the passage therethrough of ?sh. To in
75,
an
in
2,119,540
sure departure into the forebay of all of the fish,
?xed ?ow, subjecting the ?sh‘to hydraulic flows
the ?sh lift (61) may be further elevated until its
edge. (96) is substantially at the elevation of the
from alternately actuated ?shlocks to lure them
into the locks and then elevating them in the
forebay level (95). Such departure is rendered
eifective by the instinctive habit of ?sh to swim
away from shoaling water. This action on the
part of the ?sh is facilitated by the placement
of the bars ('Ha) of the grille floor (11) in the
direction of desired travel.
For conditions of minimum forebay and tail
10
race elevations as indicated in Figure 9, the aper
ture (53) through the downstream portal (49) is
locks.
_
6. The method of effecting vertical transfer of in
migrating vfish, which consists-in concentrating
the-?sh in an entry bay by means of the attrac
tion of a flow of water maintained in part by a
regulated ?ow, subjecting- the ?sh to hydraulic
flows from alternately actuated ?shlocks to lure
them past non-return means into the locks and
then elevating them in the locks.
'l. The method of effecting vertical transfer of
correspondingly adjusted with reference to mini
mum entry bay elevation (98), and aperture ‘ migrating ?sh, which consists in ‘concentrating
15
(6|), through the’ upstream portal (50) is simi
larly adjusted with reference to the minimum
forebay elevation. (99). It is to be noted that
under these conditions the fish lift (61) when
in its lowermost position may, if the construction
the ?sh in an entry bay by means of the attrac 15
tion of a flow of water maintained in part by a
regulated ?ow, subjecting the ?sh to hydraulic
?ows from alternately actuated ?shlocks to lure
theminto the locks and restraining them against
20 necessitates, assume a substantially horizontal ’ return and then elevating them in the locks and
position as shown in Figure 9. 'It is to be further
noted that the ?sh lift (61) , in its initial elevated
position, may not extend the telescoping bar
rier (86).
25
_
Under conditions of maximum forebay and tail
urging them therefrom by shoaling.
8. The method of effecting vertical transfer of
‘migrating ?sh, which consists in concentrating
the fish in an entry bay by means of the attrac
tion of a ?ow of water maintained in part by a
race elevations, as indicated in Figure 10, the
regulated ?ow, subjecting the ?sh to hydraulic
aperture (53) through the downstream portal
(49) is suitably regulated with reference to
maximum entry bay elevation (I00), and the
30 aperture (6|) through the upstream portal (5'!)
is similarly regulated with reference to the maxi
mum'forebay elevation (NH).
The closure member (54) may be manipulated
with reference to the aperture (53), so as to be
displaced upwardly or downwardly therefrom to
effect the opening thereof, as may be required
by the entry bay elevation. Similarly the closure
?ows from alternately actuated ?shlocks to lure
them into the locks and restraining them against
return and then elevating them in the locks and
member (62) may be so manipulated with refer
ence to the aperture (6|).
While the structure shown and described is
40
against return and thenelevating them in the
locks to an elevation suitable to prevailing forebay
conditions, and then urging them therefrom.
10. The method of effecting vertical transfer of
migrating ?sh, which consists in concentrating
an embodimentof the invention, it is to be under
stood that the general structure, arrangement and
combination of parts may be altered by those
skilled in the art without departing from the
45 spirit of the invention, as de?ned by the follow-_
ing claims.
Having described our invention, what we claim
as new and wish to secure by Letters Patent is:
1. The method of effecting vertical transfer of
50 migrating ?sh, which consists in concentrating
the ?sh in an entry bay and then subjecting them
to the lure effect of hydraulic flows from alter
nately actuated ?shlocks.
2. The method of effecting vertical transfer
55 of migrating ?sh, which consistslin concentrating
the ?sh in an entry bay, subjecting them to hy
draulic ?ows from alternately actuated ?shlocks,
to lure them into the locks and then elevating
60
them in the locks and releasing them therefrom.
3. The method of effecting vertical transfer of
migrating ?sh, which consists in concentrating
the ?sh in an entry bay, subjecting them to hy
draulic flows from alternately actuated ?shlocks
to lure them into the locks, and ejecting them
65
therefrom.
,
4. The method of e?'ecting vertical transfer of
migrating ?sh, which consists in subjecting them
to hydraulic ?ows from alternately actuated ?sh
locks to lure them into the locks and then ele
70 vating them in the locks and releasing them
therefrom.
~
.
5."The method of effecting vertical transfer of
migrating ?sh which consists in concentrating
the ?sh in an entry bay by means of the attrac
75 tion of a ?ow of water maintained in part by a
effecting their non-return departure therefrom.
9. The method of effecting vertical transfer
of migrating fish, which consists in concentrat
ing the ?sh in an entry bay by means of the at
traction of a ?ow of water maintained in part
by a regulated ?ow, subjecting the ?sh to hy
draulic flows from alternately actuated ?shlocks
to lure them into the locks and restraining them
40
the ?sh in an entry bay by means of the attrac
tion of a flow of water maintained in part by a -
regulated ?ow di?used into the entry bay at a
velocity below that of the ?rst namedfiow, sub
jecting the ?sh to hydraulic flows from alternately
actuated ?shlocks to lure them into the locks and
restraining them against return and then elevat
ing them in the locks and urging them therefrom 50
by shoaling.
'
11. In a structure of the class described, the
combination of a dam having a forebay and a
tailrace, a plurality of ?shlocks disposed in said
dam, an entry bay disposed adjacent the dam
and communicating with the tailrace, a plurality
‘of gate controlled portals disposed one between
each of the ?shlocks and the forebay at the level
of said forebay, a plurality of second gate'con
trolled portals disposed one between each of the 60,
?shlocks and the entry bay at the level of said
entry bay, a plurality of valve controlled conduits
disposed one between each of the ?shlocks and
the forebay. a plurality of second valve controlled
conduits disposed one between each of the ?sh 63
locks and the entry bay, a plurality of ?sh lifts
movably disposed, one in each of the ?shlocks.
power actuated means for moving the ?sh lifts
and a valve controlled conduit disposed between
the forebay and the entry bay.
70
12. In a structure of the class described, the
combination of a dam having ‘a forebay and a .
tailrace, an entry bay disposed adjacent the dam
and communicating with the tailrace, ‘and a plu- '
rality of ?shlocks disposed in said dam, each of 75
6
2,119,540
said ?shlocks being provided with a gate con
trolled portal communicating with the forebay, a
to alternately raise and lower the level of the
water within the locks to predetermined levels,
second gate controlled‘ portal communicating
a ?sh lift in each lock, and means in connection
with the entry bay, a valve controlled conduit
communicating with the forebay, a second con
with the respective lifts'to alternately effect the
trolled, conduit communicating with the entry
bay, a vertically displaceable ?sh lift,‘power op
tion, and the descent of ‘the other of said lifts to
erative means for actuating the ?sh lift, means
in connection with the ?sh lift to prevent return
10' of the ?sh, said means being adapted for registry
with the said second gate controlled portal when
the ?sh lift is at the entry bay level.
ascent of one of the lifts to a discharging posi
a ?shing position, and means'in connection with.
the locks to induce ?sh to enter one of the lifts
when it is in a ?shing position and to leave the
' other of said lifts when it is in a discharging po
sition.
.
10
.
20. A dam structure comprising dual ?shlocks,
means for introducing water into the locks and
means to introduce water into and to discharge ' to ‘alternately raise and lower the level of the
water within the locks to predetermined levels, 15
15 it from the ?shlocks, a ?sh lift in each lock, the
respective lifts being alternately operable to a a fish lift in each lock, and means in connec
?shing and to a discharging position and means tion with the locks and their lifts to induce ?sh
in connection with the locks to induce the ?sh to make a non-return entry of one of the lifts
to enter'one of the lifts when it is in a ?shing when it is in ?shing position and to effect a non
20 position, and to leave the other of said lifts when . return ejection of the fish in the other of said 20
it is in a discharging position.
lifts, when it is in a discharging position.
14. A dam structure comprising dual ?shlocks,
21. A dam structure comprising dual ?shlocks,
means to alternately introduce water into and in gate controlled communication at their upper
13. A dam structure comprising dual ?shlocks,
25
, discharge it from the ?shlocks, a ?sh lift in each
and lower extremities with a forebay and an en
lock, the respective lifts being alternately oper
trance bay respectively, means to- introduce
water into the locks to alternately raise and low
er the level of the water within the locks to
forebay and entrance bay elevations, a ?sh lift
in each lock, means in connection with the re
able to a ?shing and to ‘a discharging position
and. means in connection with the locks to induce
?sh to enter one of the lifts when it is in a ?sh
ing position and to leave the other of said lifts
30 when it is in a discharging position.’
15. A dam structure comprising a pair of ad
spective lifts to alternately cause one of said lifts’ 30
to ascend to forebay elevation and the other of
jacently situated vertically disposed ?shlocks,
45
55
60
65
said lifts to descend to entrance bay elevation,
means to introduce waterinto and to discharge it and means in connection with the locks- to in
from the ?shlocks, a ?sh lift in each lock, the re
duce ?sh to enter one of the lifts when‘ it is in
spective'lifts‘ being alternately operable to a ?sh . entrance bay elevation and to leave the other of .
ing and to a discharging position and means in said lifts when it is at forebay elevation.
connection with the locks to induce ?sh to enter
22. A damstructure comprising dual ?shlocks
one of the locks, when it is in a ?shing position in gate controlled communication at their upper
and to leave the other of the lifts when it is in a and lower extremities with a forebay and an en
discharging position.
.
trance bay respectively, means to introduce
16. A dam structure comprising a. pair of ad
water into the locks to alternately raise and
jacently situated vertically disposed ?shlocks, lower the level of the water within the locks to
means to ‘alternately introduce water into and forebay and‘entrance bay elevations, a ?sh lift
discharge it from‘ the ?shlocks, a ?sh lift in each in each lock, means in connection with the re
lock, ‘the respective lifts being alternately oper
spective lifts to alternately cause one of said
able to a ?shing and to a discharging position
lifts to ascend to forebay elevation and the other
and means in connection with the locks to induce
of said lifts to descend to entrance bay eleva?
?sh to enter one of the lifts when it is in a ?sh
tion, and means in connection with the locks and
ing position and to leave the other of the lifts their ?sh lifts to induce ?sh to make a non-re
when it is in a discharging position.
turn entry of one of thelifts when it is at en 50
17. A dam structure comprising dual ?shlocks, trance bay elevation and to leave the other of '
means to alternately introduce water into and said liftswhen it is. at discharging position.
to discharge it from the ?shlocks, a ?sh lift in‘
23. A dam structure comprising dual ?shlocks
each lock, the respective lifts being alternately in gate controlled communication at their up
operable to a ?shing and to a discharging posi
per and lower extremities with a forebay and an
tion and means in connection with the locks and entrance bay respectively, means to introduce
their ?sh lifts to induce the ?sh to enter one of;
water into the locks to alternately raise and low
the lifts when it is in'r?shing position and to ef / er the level of the water within the locks to'
fect ejection of the‘ ?sh from the other of said forebay and entrance bay elevations, a ?sh lift
locks when it is in a discharging position.
in‘each lock, means in connection with the re 60
18‘. A dam structure comprising dual ?shlocks,’ spective lifts to alternately cause one of said lifts
means to alternately introduce water into and to ascend to forebay elevation and the other of '
to discharge it from, the locks, ‘a ?sh lift in each said-lifts to descend to entrance bay elevation,
lock, the respective lifts being operable to a ?sh
and means in connection with the locks and their
ing andtoa discharging position, and means in respective ?sh lifts to induce the ?sh to traverse
connection vwithjthe locks and their ?sh lifts to a ‘non-return entry-to one of‘ the lifts when it
ind ‘ M fish to traverse a non-return entry to
is at entrance bay elevation and to effect a non
'
the lifts when it is in a ?shing position return ejection of the ?sh from the other of
,_ ,
‘ect a non-return discharge of the fish
said lifts when it is at forebay elevation._ ‘
from t e ‘other of said lifts when it is in adis
charging position.
'
19. A dam structure comprising dual ?shlocks,
means for introducing water into the locks and
(HARLAN B. HOLMES.
HENRY'F. BLOOD.
IVIILO C. BELL.
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