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Патент USA US3075561

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Jan. 29, 1963
3,075,551
E. M. SMITH ETAL
CONTROL VALVE FOR FLUID FLOW SYSTEM
6 Sheets-Sheet 1
Filed March 11, 1957
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Jan- 29, 1963
3,075,551
E. M. SMITH ETAL
CONTROL VALVE FOR FLUID FLOW SYSTEM
Filed March 11, 1957
6 Sheets-Sheet 2
55A
INVEYNTO‘RS‘ '
EDWARD M‘ SMITH &
/
VIRGIIISYKENNETH ST IDLEY
24a ,
3 M ‘
ATTORNEYS
Jan. 29, 1963
3,075,551
E. M. SMITH ETAL
CONTROL VALVE FOR FLUID FLOW SYSTEM
6 Sheets-Sheet 3
Filed March 11, 1957
FIG. 3
30'
INVENTORS
EDWARD M. SMITH a
vmeély. KENNETH STEIDLEY
ATTORNEYS
Jan. 29, 1963
3 075,551
E. M. SMITH ETAL
CONTROL VALVE FOR FLUID 110w SYSTEM
6 Sheets-Sheet 4
Filed March 11, 1957
66
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59
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FIG. 5
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E D W A R D M.
mwmmHm&R5
ag/IRCgI}. KENNETH ST IDLEY
,
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ATTORNEYS
Jan- 29, 1963
E. M. SMITH ETAL
3,075,551
CONTROL VALVE FOR FLUID FLOW SYSTEM
Filed March 11, 1957
6 Sheets-Sheet 5
FIG. IO
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INVENTORS
EDWARD M. SMITH 8
VIRGHEYKENNETH STEIDLEY
8%,
ATTORNEYS
Jan. 29, 1963
E. M. SMITH ETAL
3,075,551
CONTROL VALVE FOR FLUID FLOW SYSTEM
Filed March 11, 1957
6 $heets—$heet 6
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INVENTORS.
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EDWAR
D ‘ M. SM ITH
a
VIRGIL KENNET STEIDLEY
BY
'
63
FIG. l5
7
ATTORNEYS
/
3
3,075,551
material having high resistance to abrasion and maximum
?exing life. Each valve tube has cylindrical end portions
25 and a transversely ?attened portion 26 between the
end portions. The ?attened portion 26 is provided with
4
In controlling the movement of the operator bars, mo
tion may be imparted to the end bar 31 and transmitted
therefrom to bar 33 by means of slotted guide bars 51')
(FIG. 6) slidable along the inner surfaces of side plates
outwardly projecting cars 27 on opposite sides, the ears 5 29 and 30. The tongues 31’ of bar 31 are ?xed in slots
being preferably T-shaped to provide overhanging por
in one end of the guide bars 50 and the tongues 33’ of
tions, for a purpose to be described.
bar 33 are ?xed in slots in the opposite ends. The ends
As shown in FIG. 8, the ?attened portion 26 is molded
of stationary bars 32 extend slidably through elongated
normally to provide a ?attened elliptical passageway 28
slots 51 in the guide bars 50, so that the bars 31 and 33
therethrough, and by reference to FIGS. 4 and 5 it will 10 can move between the positions of FIGS. 4 and 5 without
be seen that the cross sectional area of said passageway
28 as molded is substantially less than its area 28' in the
fully open position of the valve when incorporated in the
valve unit.
This minimizes the amount of energy re
quired fully to close the valve, and reduces the ?exing
stresses to which the valve is subjected during opening
and closing, thereby prolonging its life.
The cross sectional area of the passageways 28 in fully
open operating position as shown in FIGS. 4 and 5 is
designed to be slightly greater than the internal cross sec
tional areas of the connector tubes 15A and 158, or sub
stantially equal to the internal cross sectional areas of the
tubular end portions 25.
The connector plates 13 and 14 of the valve unit are
preferably supported in spaced-apart parallel relation by 25
a frame comprising side plates 29 and 30, preferably of
metal, which have inturned angular ?anges 29’ and 30’
secured to the inner surfaces of the connector plates by
bolts 29A and 30A. Transverse operator bars for open
ing and closing the valves extend between the side plates
29 and 30 and have projecting tongues which enter into
slots in the side plates 29 and 30. Preferably, the actu
affecting the position of bar 32.
The means for moving the bar 31 to the left, as in FIG.
5, may be a linkage actuated by a solenoid indicated
generally at 55, and the means for returning the bar to
the position of FIG. 4 may be springs 56 attached to the
bar. Terminal connections to solenoid 55 are indicated
at 55A. However, one or both of these movements may
be accomplished manually, or by any other suitable
means. In the embodiments of FIGS. 1-9, the solenoid
55 is mounted by bolts 57 on a bracket extension 58 of
side plate 29 and between said extension 58 and a pro
tective shield extension 59 of side plate 30. The axis of
armature 60 of the solenoid is midway between the side
plates and parallel thereto.
The end of the solenoid 60 is connected to one end of
a helical spring 61 and the other end of the spring is
connected to the outer end of a bellcrank lever 62 pivoted
on a cross shaft 63 mounted at its ends in the side plates
29 and 30. A cam 64 on the lever engages the central
projection 65 of actuator bar 31. The lever 62 is pro
portioned to substantially decrease the amount of travel
of the operator bar 31 over the travel of the armature,
ator bars are located midway between and parallel to the
so as to minimize the amount of force required to obtain
connector plates 13 and 14.
full opening of the valves, thereby allowing the use of a
The operator bars are shown at 31, 32, 33 and 34, bar 35 relatively small solenoid.
31 having tongues 31’ slidable in slots 35 in side plates
29 and 30, and bar 33 having tongues 33’ slidable in slots
In the positions of FIGS. 2 and 4, the solenoid is de
energized and the operator bar 31 is urged to the posi
36 in side plates 29 and 30. Bar 32 has tongues 32' ?xed
tion shown by the springs 56 attached at one end to the
in slots 37 in the side plates 29 and 30, and bar 34 has
bar 31 and at their other ends to bracket ears 66 and 67
tongues 34' normally ?xed in slots 38 in plates 29 and 40 on the side plate extensions 58 and 59, respectively. In
30, but capable of limited sliding movement against the
the position of FIGS. 3 and 5, the solenoid is energized,
yielding pressure of leaf spring 40 secured in the outer
causing the bell crank lever 63 to force the bar 31 in
ends of said slots 38, and pressing against a central pro
wardly, against the tension of springs 56. When the
jection 41 on the bar 34.
solenoid is again de-energized, the springs 55 return the
The bars 31, 32, 33 and 34 are provided with T-shaped 45 bar 31 to the position of FIGS. 2 and 4'.
slots for engaging around the T-shaped ears 27 of the
The purpose of the leaf spring 40 backing up the bar
valve tubes 11!, 11 and 12, respectively. Slidable bar 31
34 is to insure complete closing of both valves 10 and
has a T-shaped slot 42 at its inner edge engaging around
12 in the position of FIGS. 3 and 5 without requiring
the car 27 on the adjacent side of valve 19. Stationary
close tolerances in the connections between the operator
bar 32 has T-shaped slots 43 and 44 at opposite edges, 50 bar 31, the guide bars 50 and the operator bar 33. In
slot 43 engaging around the ear 27 on the opposite side
other words, the spring 40 allows a limited amount of
of valve 111 and slot 44 engaging around the car 27 on
over travel of bar 34 so that valve 12 can close slightly
the adjacent side of valve 11. Slidable bar 33 has T
ahead of valve 11) and still allow valve 10 to close com
shaped slots 45 and 46 at opposite edges, slot 45 engaging
pletely.
around the car 27 on the opposite side of valve 11, and 65
In a similar manner, the spring 61 allows a limited
slot 46 engaging around the car 27 on the adjacent side
amount of over travel of the armature 60 when the sole
of valve 12. End bar 34 has a T-shaped slot 47 at its
noid is energized, to insure that the armature reaches the
inner edge engaging the opposite side of valve 12.
end of its inward movement, and prevents burning out
If the slidable bars 31 and 33 are moved to the right,
of the coil which otherwise might occur if inaccurate con
as shown in FIG. 4, they will pull or ?ex the ?attened 60 nections in the linkage did not permit the armature to
portions 26 of valves 10 and 12 to open position, the
seat when valves 10 and 12 were fully closed.
opposite sides of the valve being held ?xed by the sta—
In the ?ow system embodying the improved three-tube
tionary bars 32 and 34, respectively. At the same time,
valve unit shown in FIG. 1, the washing machine 70 has
bar 33 moves the valve 11 to closed position backed up
its drain pump 71 connected to conduit 21, which is con
by bar 32. If the slidable bars 31 and 33 are moved to 65 nected to manifold 19 of the valve, and the suds return
the left, as shown in FIG. 5, valves 10 and 12 will be
pump 72 is connected to conduit 16‘. On the other side
closed against back-up bars 32 and 34, and valve 11 will
of the valve unit, conduit 22, which is connected to man
be pulled to open position by bar 33.
ifold 24?, leads into the top and extends to the bottom
Accordingly, the valves 10, 11 and 12 have means for
of a storage receptacle 73 which is shown as one-half of
positively moving them in opposite directions to open and 70 a twin laundry tub, and conduit 17 discharges into the
closed positions. Thus, there is no possibility of a valve
other half 74 of the laundry tub.
taking a set when closed and failing to open properly.
During that part of the washing cycle when it is de
Moreover, the valves can not stay closed due to a vac
sired to discharge the suds from the machine 70', the so
uum in the line when they are intended to open, as is
lenoid 55 ‘is energized to open valve 11 and close valves
sometimes the case with an ordinary pinch valve.
75 10 and 1-2, as shown in FIG. 1, corresponding to the
‘3,075,551
:5'
position of FIGS. 3 and 5. In this ‘position the drain
pump 71 pumps the suds from the washer '70 into the
tub 73, where they are retained by the stopper '75.
When the *machine‘has been emptied of suds, the rins
ing cycle is begun by introducing rinse water through
l?ll line 76. During rinse water discharge, the solenoid
55 is de-energized to open valves 10 and 12 and close
valve 11 in the position of FIGS. 2 and 4, and the drain
:pump 71 discharges the rinse water through valve 10 to
the end of vits inward movement and the valves .10 ‘and
'12 become fully closed, the solenoid :has progressively
less spring resistance‘to overcome, as-distinguishedfrom
the condition shown in FIG. 5, where-thercoil springs56
provide an increasing forceto'be-overcomebythe arma
ture as it approaches the end 20f its inward ‘movement.
Accordingly, by using the springs80, .a solenoid requiring
less power can be used toaccomplish the desired result.
Referring to the metal clips 81, these are preferably
thin
U-shaped pieces each having a central sl0t.88 éfor
tub 74 or any suitable waste. When it is desired to re 10
slidably ?tting around the stern oftone of the T-shaped
turn the'suds water from tub 73 to the washing machine,
cars 27. The legs 189 formed by the .T-shaped slots in
the pump 72 is operated to pump the suds water through
the
bars 31, 32, 33 and 34 ?t under the .clips.81:>andrbe
valve :12, and the location of the‘pump 72 below the suds
tween the clips and the body of the respective valve tube,
level in tub 73 serves to prime the pump 72 when valve
12 is opened. The operation of pump '72 may be auto 15 so that each clip abuts the underside of thecrosslaar-of
the T.
matically controlled by a timer or 'by manual operation
The clips 81 preferably haveoutwardly,projectingwings
of a switch.
96 opposite the open end of the slot \whichactasstops
The single valve unit shown in FIGS. 10 and 11 has
for engaging the respective-operator bars 31,.32,.33-an_d
one valve tube v110 which is closed by a solenoid 155
vthrough a lever 162 engaging actuator bar 131 mov 20 .34 to limit lateral movement of the clips .in one direc
able in slots 135 in side plates 129 and 130. A bar 132
‘?xed in slots in the side plates backs up the valve tube
tion.
Lateral movement in the other direction .is pre
vented by the closed end of the clipsrengagingttherstem
of the T~shaped cars 27.
a
on the ‘side opposite to the bar 131. Each of the bars
When the operator bars pulllontheears 527 toppen-the
131 and 132 has a T-shaped slot engaging around the
‘ears 127 of the valve. When the solenoid 155 is de 25 Valve tubes, the clips ‘SI-act toidistributevthe gpullrevenly
over the cross bars of the earssozthat-there isno'possi
energized the springs 156 pull the ‘valve to open position
bility of distortion of the ears .onone side'orthe ‘other
as shown in FIGS. 10 and 11. The valve tube connects
resulting in inadequate or improper opening :of the valve
‘tube portions 115A which are formed .on plates 113A
tube.
and 114A and adapted for connection with suit-able fluid
What is claimed is:
30
conduits.
1. A valve unit comprising opposed plates having
Obviously, the novel valve unit can be constructed
aligned connector tube portions, side ,plates supporting
with 'two valve tubes, or with more than three valve
said opposed plates in predetermined spaced .~.relation,.a
tubes, within the scopeof the invention.
pin ch-tube valve connecting said tube, portions andhaving
The improved valve unit requires no packing, handles
-?uids containing foreign matter including abrasive ma 35 an intermediate ?exible pinch section, ‘valve operator -:b.ars
extending transversely ‘of said valve/and connected .one
terial over long periods without clogging, and is readily
to each side ofsaid pinch section, said side plates having
adaptable to ?ow systems wherein the valves are required
slots slidably receiving the ends vof one -of.said bars to
to be positively closed and positively opened to fully
permit movement thereof ‘toward and away from said
open position.
pinch section for .?exingone side of said valve, the other
Theconstruction of the three-valve unit shown in FIGS.
of said bars having its ends secured to said side plates,
12-15 is substantially identical with that shown in FIGS.
a lever pivoted on said side plates for ,actuatingsaidmov
1—9, .as shown by like reference numerals, except that
able bar intone direction, and sspringtmeansiconnected
the springs 56 for returning the bars 31 and 33 to nor
between said movable bar and said :sideplates for actu
mal position when the solenoid is de-energized are omit
ted, and the two springs .80 ‘shown in FIGS. 13 and 14 45 ating said movable bar in theoppositetdirection.
are substituted therefor. Also, metal clips 81 as shown
2. A valve unit comprising opposed plates v‘having at
least two pairs of alignedvconnector tube‘portions, pinch
in FIG. 16 .are inserted under the projecting T-shaped
tube valves arranged in parallel between said ‘plates and
cars .27 on opposite sides of .each of the valvetubes 10,
connecting said tube portions, side plates-supporting said
11 and 12, and within .the T-shaped slots 42, 43, 45,46
and 47 in the bars 31, 32, 33 and 34, respectively.
50 ‘opposed plates in predetermined spaced .relation, .a .?xed
valve operator bar secured to and extending transversely
The springs 80 each prefereably comprise two ,U
vof said side plates between said valves, valve operator
bars extending transversely 1ofsaid side platesonthe outer
sides of said valves and movably ,mounted in said :side
left edge as shown .in FIGS. 4 and 12). From their
overlapping ends the U-shaped parts 83 extend laterally 55 plates for movement toward landla-wayiromsaid valves,
shaped parts 83 of spring who having curved innerover
lapping ends .84 engaging the lower edge of bar 33 (the
in opposite directions from the bar 33 in a butter?y ar
rangement, and their outer free ends 85 engage projec
tions ‘86 formed on the side plates 29' and 39‘.
As shown in FIG. 13, when the solenoid 55 is de
means connecting said (bars intermediate=theirxends -.to op
closed. In this position the legs of the U-shaped spring
.tube valves arranged in parallel -hetween.said plates ‘and
parts 83 are exerting substantially the full force of the
springs against the bar 33 in ‘a direction to urge it to the
right as viewed in FIG. 13.
‘When the solenoid 55 is energized, causing the cm 64
connecting said tube portions, ,sidejplates supporting .said
posite sides of said valves, means operatively connecting
the outer ends of said movable ‘bars, and .means .foractu
vating one of said movable ‘bars :in'oppos'ite'directions to
energized and the springs 80 have returned the bar 33 60 alternately open one valve and close the :other.
3. A valve unit comprising opposed plates having at
to its normal position, as well as bar 31 through the guide
least two pairs of alignedconnectorttubeportions, pinch
bars 50, the valves 12 and 1%} are open and valve 11 is
to move bar '31,.guide bar 54) and bar 33 to the left as
opposed plates in vpredetermined spaced relation, .a :?xed
valve operator bar secured to"and-extendingttransversely
'of said side plates between said valves, valve operator
bars extending transversely of said side (plates on 'the
outer sides of said valvesand movably mounted in said
shown in FIG. 14, the spring parts 33 are rotated about
the projections .86 as centers by the pressure of bar 33. 70 side plates for movement toward and :away ,from said
valves, means ‘connecting said bars intermediate their
As the U-shaped spring parts rotate, the resilience of one
part begins tooppose that vof the opposite part, with the
ends to opposite sides of said valves, .meanscperatively
connecting the outer ends ‘of said movablebars, lever
result-that their combined resistance to movement of the
means
mounted on said side plates ‘for actuating .one of
bar 31 to the left decreases.
Thus, as the armature of the solenoid 55 approaches 75 said movable bars in one direction to open one valve
3,075,551
7
8
and close the other, and spring means connected between
limited yielding movement away from said third valve,
said one movable bar and said side plates to actuate said
one movable bar in the opposite direction to reverse the
lever means pivoted on said side plates operatively engag
ing said ?rst outer bar, solenoid means to actuate said lever
means to close said ?rst'and third valves while opening
said second valve, and spring means to actuate said ?rst
outer bar in the opposite direction to open said ?rst and
positions of said valves.
4. A valve unit comprising opposed plates having at
least two pairs of aligned connector tube portions, pinch
tube valves arranged in parallel between said plates and
third valves while closing said second valve.
8. A valve unit including a frame, at least three pinch
opposed plates in predetermined spaced relation, a ?xed
tube valves mounted in parallel in said frame and having
valve operator bar secured to and extending transversely 10 ?exible pinch sections between their ends, said frame hav
of said side plates between said valves, valve operator
ing side plates parallel to the axes of said valves, aligned
bars extending transversely of said side plates on the
valve operator bars extending transversely of said valves
outer sides of said valves and movably mounted in said
on opposite sides of said pinch sections, means securing
side plates for movement toward and away from said
the edges of said bars to adjacent sides of said pinch sec
valves, means connecting said bars intermediate their
tions, the side plates having slots slidably receiving the
ends to opposite sides of said valves, means operatively
ends of the outer bar at one end of the unit and the ends
connecting the outer ends of said movable bars, a lever
of the bar between the second and third valves permitting
mounted on said side plates operatively engaging one of
movement of said bars toward and away from said valves,
said movable bars, a solenoid operatively connected to
guide bars operatively connecting said movable operator
said lever for actuating said one movable bar in one di 20 ‘oars, means securing said bar extending between said ?rst
connecting said tube portions, side plates supporting said
rection to open one valve and close the other, and spring
means connected between said one movable bar and said
side plates to actuate said one movable bar in the oppo
and second valves to said plates, means mounting the bar
at the other end of the unit in said side plates for limited
yielding movement away from said third valve, lever
site direction to reverse the position of said valves.
means pivoted on said side plates operatively engaging
5. A valve unit including a frame, at least three pinch 25 said ?rst outer bar, solenoid means to actuate said lever
tube valves mounted in parallel in said frame and having
means to close said ?rst and third valves while opening
?exible pinch sections between their ends, valve operator
said second valve, and spring means to actuate said ?rst
bars extending transversely of said valves on opposite sides
outer bar in the opposite direction to open said ?rst and
of said pinch sections and secured thereto, the outer bar
third valves while closing said second valve.
at one end of the unit being movably mounted in the 30
9. A valve unit comprising a frame, a pinch-tube valve
frame for movement toward and away from the adjacent
secured at its ends in the frame and having an intermediate
?rst valve, the bar between the second and third valves
?exible pinch section, ?exible T-shaped ears projecting
being movably mounted in the frame for movement to
outwardly from opposite sides of said pinch section, valve
ward and away from said valves, means operatively con
operator bars extendinU transversely of said valve and
necting said movable bars, the bar between the ?rst and
second valves being secured to the frame, the outer bar
having T-shaped slots forming legs ?tting under said
ears, metal clip plates interposed between said legs and
at the other end of the unit being mounted in the frame
for limited yielding movement away from said third valve,
and means for actuating said ?rst outer bar in opposite
directions to close said ?rst and third valves while open
the cross bars of said ears, one of said bars being movable
on said frame for ?exing one side of said pinch section,
and the other of said bars being ?xed on said frame, and
means for actuating said movable bar in opposite direc
tions to open and close the valve.
10. A valve unit comprising a frame, a pinch-tube valve
secured at its ends in the frame and having an intermediate
ing said second valve and to even said ?rst and third
valves while closing said second valve.
6. A valve unit including a frame, at least three pinch
tube valves mounted in parallel in said frame and having
?exible pinch sections between their ends, said frame hav
ing side plates parallel to the axes of said valves, aligned
valve operator bars extending transversely of said valves
on opposite sides of said pinch sections, means securing
the edges of said bars to adjacent sides of said pinch sec
tions, the side plates having slots slidably receiving the
ends of the outer bar at one end of the unit and the ends
of the bar between the second and third valves permitting
movement of said bars toward and away from said valves,
guide bars operatively connecting said movable operator
bars, means securing said bar extending between said ?rst
and second valves to said plates, means mounting the
?exible pinch section, flexible T-shaped ears projecting
outwardly from opposite sides of said pinch section, valve
operator bars extending transversely of said valve and
having T-shaped slots forming legs ?tting under said ears,
U-shaped metal clip plates ?tting around the stems of
said ears and between the cross bars of said ears and the
50
legs of said cross bars, said clips having outwardly project
ing wings opposite their open ends to engage the valve
operator bars and limit lateral movement of the clips in
one direction, one of said bars being movable on said
frame for ?exing one side of said pinch section, and the
other of said bars being ?xed on said frame, and means
for actuating said movable bar in opposite directions to
bar at the other end of the unit in said side plates for
open and close the valve.
limited yielding movement away from said third valve,
11. A valve unit comprising a frame, a pinch-tube valve
and means for actuating said ?rst outer bar in opposite
secured at its ends in the frame and having an intermediate
directions to close said ?rst and third valves while opening 60 ?exible pinch section, valve operator bars connected one
said second valve and to open said ?rst and third valves
to each side of said pinch section, one of said bars being
while closing said second valve.
movable on said frame for ?exing one side of said pinch
7. A valve unit including a frame, at least three pinch
section and the other of said bars being ?xed on said
tube valves mounted in parallel in said frame and having
frame, means for actuating said movable bar in one direc
?exible pinch sections between their ends, valve operator
tion, and spring means for returning said movable bar
bars extending transversely of said valves on opposite
in the opposite direction, said spring means comprising a
sides of said pinch sections and secured thereto, the outer
U-shaped spring having one end urging the movable bar
bar at one end of the unit being movably mounted in the
and the other end pivoted on the frame to allow rotation
frame for movement toward and away from the adjacent
of the spring in a direction to decrease its resistance as
?rst valve, the bar between the second and third valves
the movable bar is moved in said one direction by said
'being movably mounted in the frame for movement toward
actuating means.
and away from said valves, means operatively connecting
12. A valve unit comprising a frame, a pinch-tube valve
said movable bars, the bar between the ?rst and second
secured at its ends in the frame and having an intermedi
valves being secured to the frame, the outer bar at the
ate ?exible pinch section, valve operator bars connected
other end of the unit being mounted in the frame for 75 one to each side of said pinch section, one of said bars
8,075,551
being movable on said frame for ?exing one side of
said pinch section and the other of said bars being ?xed
on said frame, means for actuating said movable bar in
one direction and spring means for returning said movable
bar in the opposite direction, said spring means com
prising two U-shaped parts extending in laterally opposite
directions and having inner overlapping ends urging the
movable bar in said opposite direction, the outer ends
or" said parts being pivoted on said frame to allow rotation
of the parts in a direction to decrease their resistance as 10
the movable bar is moved in said one direction by the
actuating means.
16
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,930,983
2,396,544
2,471,623
2,625,932
2,642,085
2,662,384
2,769,397
2,8 10,991
Russell ______________ __ Oct.
Voyle _______________ __ Mar.
Hubbell _____________ __ May
Salisbury _____________ __ Jan.
Geldhof ____________ __ June
Morrison ____________ __ Dec.
17,
12,
31,
20,
16,
15,
Bolger _______________ __ Nov. 6,
Mead ________________ __ Oct. 29,
1933
1946
1949
1953
1953
1953
1956
1957
FOREIGN PATENTS
164,899
809,502
Australia ____________ __ Aug. 31, 1955
Germany ____________ __ July 30*, 1951
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