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Патент USA US2126900

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Aug. "16, 1938.
H. E. LlSK
CONTROL MECHANISM.
Filed Nov. 9, 1937
2,126,900
Patented Aug. 16, 1938
2,126,90t
UNETED STATES PATENT OFFICE
2,126,900
CONTROL MECHANISM
Harry E. Lisk, Independence, Iowa
Application November 9, 1937, Serial No. 173,715
10 Claims.
(01. 62_—15)
This invention relates to improvements in con—
trol mechanism and more especially to inertia
opposite end of the arm is joined by a slot and
pin connection I8 to a reciprocating rod I9 hav
actuated mechanism for controlling valves or the
ing a rigidly projecting arm 20 that carries a
like.
5
The primary object of the invention is to pro
vide a mechanism adapted to be mounted on a
vehicle and motivated by starting and stopping
of the vehicle or by the rocking motion thereof
for intermittently operating a valve controlling
10 the feed or passage of a ?owable material or
substance.
A speci?c object is to provide means for auto
matically resalting the ice in refrigerator cars
while they are in transit without opening the
‘15 car.
A further object is to furnish resalting means
for the ice of refrigerator cars, which means is
controlled by movement of the cars.
With the foregoing objects outlined and with
‘20 other objects in view which will appear as the
description proceeds, the invention consists in
the novel features hereinafter described in de
tail, illustrated in the accompanying drawing,
and more particularly pointed out in the ap
{25 pended claims.
In the drawing:
Fig. 1 is a longitudinal vertical sectional View
of a refrigerating car, partly in elevation, and
showing my improved mechanism installed
’ 30 therein.
Fig. 2 is an enlarged vertical sectional View of
such mechanism shown controlling the resaltlng
of the ice in a refrigerator compartment of such
a car.
Fig. 3 is a side elevation of a detail.
Referring to the drawing, 4 indicates any suit
able type of refrigerator car provided with one
or more ice tanks 5 which may be suppliedv with
ice through top openings 6 provided with covers
‘l0 or doors I.
8 indicates cocks for use in draining
the tanks.
I
In accordance with the invention a hopper or
other supply means 9 may be positioned at one
side of each tank to supply a movable substance,
‘15 such as salt in, which passes into the tank
through a conduit II having a control valve l2.
Obviously such valve may be of any suitable
type, but for the purposes of illustration, I have
shown it as a paddle wheel I3 that is mounted
'50 on a rotatable shaft I4 journaled in opposite
sides of the conduit II.
Externally of the con
duit, the shaft is provided with a ratchet wheel
IE that is engaged by a spring-pressed pawl I 6
pivotally mounted on an arm I‘! which has one of
55 its ends rockably mounted on the shaft. The
?nger 2| terminating in a piston or abutment 22.
The rod is also connected at one end by a slot 5
and pin connection 23 to an end of a lever 25
that is pivotally mounted at 25 on a ?xedly ar
ranged supporting bracket 26. The opposite end
of the rocking lever is joined by slot and pin,
connection 21 to a ?nger 28 that terminates in a
- 0
piston or abutment 29. In accordance with the
present invention the abutments 22 and 29 are
arranged in a chamber, cylinder or guide-way 39
and the ?ngers are guided by opposite walls SI ‘I
of the cylinder. A ball 32 of suitable weight is "15
arranged in the cylinder and is adapted to roll
back and forth due to inertia brought about by
movement of the vehicle, and each time it strikes
one of the abutments, it causes actuation of the
valve. I2 to feed material, such as salt Ill from 0
the hopper 9 through the conduit II into the ice
chamber. In this way, if the mechanism is used
for resalting the ice in a refrigerator car, salt
will be fed intermittently from the hopper,
through the conduit and on to the ice in’ the
tank 5.
a
‘
Any suitable means may be employed to hold
the pistons or abutments in normal position.
For example, coil springs 33 may surround the (it)
?ngers and be arranged between the abutments
and the opposite ends of the cylinder 32.
It will be obvious that the size of the ball 32
and the length of the guide-Way 39 will depend
upon the shock necessary to apply the force, and ;; Li
it will also be manifest that various types of
transmission means may be employed between
the .abutments 22, 29 and the valve I2 instead of
the speci?c mechanism disclosed. Those skilled
in the art will appreciate that hydraulic trans- 40
mission means may be used instead of mechanical
means.
While I have disclosed the invention for use
in resalting the ice in refrigerator cars, I am
aware that my control means may be used for -'
various purposes. I therefore desire it to be
strictly understood that my control mechanism
described and illustrated is in a form suitable
for my purposes, and that changes .and various
modi?cations may be made as may be convenient 50
or desirable without departing from the salient
features of the invention, and I therefore intend
the following claims to cover such modi?cations
as naturally fall within the lines of the inven
tion.
55
2
2,126,900
What I claim and desire to secure by Letters
Patent is:
l. The combination with a movable vehicle
carrying a conduit through, which a substance
CH is adapted to pass, a valve interposed in the con
duit for controlling the passage of the substance
therethrough, a guide-Way, a ball guided by the
guide-way and adapted to roll to and fro due to
movements of the vehicle, and means actuated
10 by said ball for controlling said valve.
2. The combination with a movable vehicle
carrying a conduit through which a substance is
adapted to pass, a valve interposed in the conduit
for controlling“ the passage of the substance
15 therethrough, a guide-way, a ball guided by the
guide-way and adapted to roll to and fro due
to movements of the vehicle, and means actuated
by said ball for controlling said valve, the last
mentioned means comprising oppositely disposed
movable abutments arranged at opposite ends
of said guide-way.
3. The combination with a movable vehicle
carrying a conduit through which a substance is
adapted to pass, a valve interposed in the conduit
25 for controlling the passage of the substance
therethrough, a guide-way, a ball guided by the
guide-way and adapted to roll to and fro due to
movements of the vehicle, and means actuated
by said ball for controlling said valve, the last
mentioned means including ?ngers slidably ar
ranged at opposite ends of the guide-way and
terminating in oppositely disposed abutments ar
ranged to be struck by the ball, and means for
normally holding the abutments in predeter~
mined
positions.
35
4. The combination with a movable vehicle
carrying a conduit through which a substance
is adapted to pass, a valve interposed in the con
duit for controlling the passage of the substance
therethrough, a guide-Way, a ball guided by the
40 guide-way and adapted to roll to and fro due
to movements of the vehicle, and means actu
ated by said ball for controlling said valve, the
last mentioned means including ?ngers slidably
arranged at opposite ends of the guide-way and
45 terminating in abutments arranged to be struck
by the ball, a rod operatively connected to the
50
valve, an arm rigidly united with the rod and
with one of said ?ngers, and a rocking lever
operatively connected to the other ?nger and to
said rod.
'
5. The combination with a vehicle having a re
frigerant chamber, of a salt chamber arranged
adjacent thereto, a conduit placing said cham
bers in communication, a valve in the conduit
55 for controlling the flow of salt from the salt
chamber into the refrigerant chamber, a guide
way, a ball arranged to roll to and fro in the
guide-Way, and means operatively connected to
the valve and actuated by the ball for operating
the valve to cause feeding of the salt from the
salt chamber into the refrigerant chamber.
6. The combination with a vehicle having a
refrigerant chamber, of a salt chamber arranged
adjacent thereto, a conduit placing said cham
bers in communication, a valve in the conduit
for controlling the ?ovv of salt from the salt
chamber into the refrigerant chamber, a guide
way, a bal1 arranged to roll to and fro in the
guide-Way, and means operatively connected to
the valve and actuated by the ball for operating
the valve to cause feeding of the salt from the
salt chamber into the refrigerant chamber, the
last mentioned means comprising oppositely dis
posed movable abutments arranged at opposite
ends of said guide-way.
7. The combination with a vehicle having a
refrigerant chamber, of a salt chamber arranged
adjacent'thereto, a conduit placing said cham
bers in communication, a valve in the conduit 10
for controlling the flow of salt from the salt
chamber into the refrigerant chamber, a guide
way, a ball arranged to roll to and fro in the
guide-way, and means operatively connected to
the valve and actuated by the ball for operating 15
the valve to cause feeding of the salt from the
salt chamber into the refrigerant chamber, the
last mentioned means including ?ngers slidably
arranged at opposite ends of the guide-way and
terminating in oppositely disposed abutments ar 20
ranged to be struck by the ball, and means for
normally holding the abutments in predeter
mined positions.
8. The combination with a vehicle having a
refrigerant chamber, of a salt chamber arranged 25
adjacent thereto, a conduit placing said cham
bers in communication, a valve in the conduit
for controlling the flow of salt from the salt
chamber into the refrigerant chamber, a guide
way, a ball arranged to roll to and fro in the v30
guide-way, and means operatively connected to
the valve and actuated by the ball for operating
the valve to cause feeding of the salt from the
salt chamber into the refrigerant chamber, the
last mentioned means including ?ngers slidably,
arranged at opposite ends of the guide-way and ‘
terminating in abutments arranged to be struck
by the ball, a rod operatively connected to the
valve, an arm rigidly united with the rod and
with one of said ?ngers, and a rocking lever oper
atively connected to the other ?nger and to said
rod.
9. The combination with a refrigerator car
having a refrigerant-chamber, a conduit con—
nected to the upper portion of said chamber
for introducing salt into the chamber, salt sup
ply means for feeding salt to the conduit, a valve
in the conduit for controlling the ?ow of salt
therethrough, guide means operatively positioned
relatively to the valve, a ball arranged to roll
back and forth in the guide means, a rod opera
tively connected to the valve, an arm rigidly
50
united with the rod, a rocking lever operatively
connected to the rod, slidable ?ngers connected
to the arm and lever and projecting toward one
55
another into the guide means, abutments car
ried by the ?ngers and adapted to be struck by
the ball, and resilient means for yieldingly hold
ing the abutments in predetermined positions.
10. The combination with a movable vehicle
60
carrying a salt container, an ice container and
a passageway placing said containers in con
munication, of feeding means interposed in the
passageway for controlling the passage ofv salt
therethrough. a weight adapted to move back
and forth due to movements of the vehicle, and 65
means actuated by said weight for controlling
the feeding means.
HARRY E. LISK.
70
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