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Патент USA US2119144

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May 31, 1938.
J. R. WILLIAMé ,
2,119,144
CONCRETE MIXING MACHINE
Filed Nov. 27, 1937
2*‘ WWW
BY
"
ATII‘ORNEY.
Patented May 31, 1938
~ ~
v
2,119,144
UNITED STATES PATENT OFFICE
2,119,144
CONCRETE MIXING MACHINE
Joseph R. Williams, Piscataway Township, Mid
dlesex County, N. J ., assignor to Ranscme Con
crete Machinery Company, Plain?eld, N. J., a
corporation of New Jersey
Application November 27, 1937, Serial No. 176,795
14 Claims.
The improvements relate to means for con
trolling the measured ?ow of water from a water
tank into a concrete mixing machine, and more
5
particularly to the operation and correlation of
the said control mechanism. Speci?cally, the
improvements relate to hydraulic operation and
control of such means and to certain mechanical
connections pertinent thereto, but pneumatic or
mechanical operation may be used.
10
_
The objects of the improvements include the
provision of means for, operating the hydraulic
control of the water valve concurrently or in syn
chronism with the loading and loader charging
operations, but without any operative or other
connection with the loading means, or at the
will of the operator, as he may desire, and of
means for effectively disconnecting the mecha
nism for facilitating synchronism, in order to
permit operation of said system by hand or pre
20 vent its untimely operation.
Further and inci
dental objects and advantages of the improve
ments appear in connection with the following
description in which the accompanying drawing
is referred to.
In the drawing, the ?gure is a side perspective
25
view of a water discharge control mechanism em
bodying the improvements.
The construction and operation of the water
operating mechanism, as herein shown, is exem
30 plary, and may be varied within certain limits
without departing from the scope of the present
improvements which may be embodied in appa
ratus of this character of various constructions
and arrangements. The details of the pump, tank
35 and valves for generating pressure and control
ling the movement of the ?uid by which pressure
is communicated to the mechanism operated and
controlled thereby and of the said controlled
mechanism are well known and may also be var
40 ied, and therefore need not be described in detail.
These parts are made by various manufacturers
and are common to the art. Hydraulic operat
ing control apparatus for other parts of the con
crete mixing and distributing machine are also
45 shown and described in the copending applica
tion of John P. Faber, Serial No. 137,192, ?led
April 16, 1937, to which reference may be had.
In the drawing l represents a skip hoist clutch
lever which is pulled forward in order that‘ a
50 clutch for a loading skip carrying the dry ag
gregates of the concrete may be closed and the
skip raised by suitable power means and the said
aggregates dumped into the drum of the mixing
machine. Means for accomplishing the raising
55 and lowering of the skip and for connecting such
means with the skip are not a part of this inven
tion and therefore are not shown. Upon pulling
forward the skip hoist lever l to a predetermined
point said lever comes in contact with the arm
2' of the T-shaped rocking member 2 mounted
on bar 5, and said member is thus rocked in the
direction in which said skip hoist lever is pulled.
The lever is so positioned with respect to the arm
2' that the end of its clutch engaging movements
will move said arm, or an extra movement may be
necessary to accomplish this as desired. The
member 2 and its web 3 are integral with the col
lar 4, which in turn is loosely mounted on the bar
5 and held in place thereon by the cotter pin 6
so that its rotary movement is unrestricted. At 15
the junction of the upright and horizontal por
tions of member 2 there is a?ixed a pin bolt 8
to receive a hook 9 on a hollow internally thread
ed shank 'l.
The hook 9 is rigidly secured to the rod It 20
threaded therein which communicates with the
outer part of the valve lever extension l2 by
means of a pin ll passing through one of the
holes I2’, which provides adjustment.
As the
rod ID has its ends threaded into the shank of 25
the hook 9 and of the fork 20, the length of this
connection can be adjusted by rotating the said
rod.
»
-
I3 is the valve operating lever which actuates'
the rod 14 by means of the leverage it exerts 30
when it turns on the pivot I la, and the said rod
operates the usual valve controlling the transmis
sion of fluid pressure to a hydraulic cylinder 24,
through the pipes I6 and H, by which the valves
25 and 26 of the water tank 21 are moved to open 35
or closed position according to whether the valve
lever is pushed forward or pulled backwards.
I8 is the skip hoist brake lever which is thrown
forward when the skip hoist has been raised to a
dumping position and the skip hoist clutch lever
l is moved forward to release the hoisting clutch
(not shown). The drawing forward of the skip
hoist brake lever 18 causes it to move further
away from the arm 2" of the member 2 and said
member is not therefore rocked thereby in the 45
direction of travel of the brake lever I8.
In practice the operation of the mechanism is
as follows. The operator grasps the skip‘ hoist
lever I and pulls it forward to actuate the skip
hoist clutch and cause the power mechanism to
raise the skip into dumping position. When the
lever is pulled forward it strikes the arm 2' of
the member 2 so as to move this member 2 for
ward in the direction of travel of the said lever,
which is- toward the operator standing on plat
2
2,119,144
form 28. When the member 2 is rocked forward
by the skip hoist lever striking it, the hook 9 is
moved forward likewise, and through its connec
tion with the rod Hi and the: extension l2 serves
to pull forward the said valve lever extension
which forces the rod [4 backward, thus opening
a valve in the valve body 2| and causing liquid
under pressure to move through the pipe I‘! to
the hydraulic’ cylinder 24 which operates to open
10 the valve of the water tank at a distant point,
and causes the said tank to discharge a measured
quantity of water into the mixer (not shown)
through a discharge pipe 29.
When the skip has reachedits dumping posi
15 tion the skip hoist clutch lever I is thrown out
and the brake with its lever I8 is thrown on, and
on being thrown on the brake lever 18 moves
forward and away from the arm 2” of the mem
ber 2, which must later be moved in a direction
opposite to that of the movement which caused
the water valve to be opened, for the purpose of
closing the discharge valve 25, opening the ?lling
valve 26 and re?lling the tank, said motion caus
ing pressure to be transmitted to the hydraulic
25 cylinder through the pipe l6 and moving the
usual plunger in the cylinder in a direction oppo
site to that of the movement which opened the
said water discharge valve. The operator is per
mitted to ease off the skip brake by pushing the
30 brake lever backward to a limited extent, thus
permitting the skip to descend under control,
without bringing the said lever into contact with
the arm 2" and thus operating the tank ?lling
water valve, due to a spacing of the lever and arm
35 to permit said movement of the former. Adjust
able screw bolts 22 and 23 are mounted on the
levers l8 and l respectively for contact with the
arms of the member 2, so that the spacing of the
parts and the resulting free motion of the levers
may be accurately adjusted.
'
Should the operator of the machine wish to
disconnect the automatic water valve operating
means, it is the work of but a moment for him
to disconnect the rod Ill by removing the hook 9
45 from the pin 8. In this event it will be necessary
for the operator to operate the water valve man-'
ually by means of the lever l3. This provision
also permits the operator to raise the skip for the
purpose of dumping any material not discharged
50 from the skip on its ?rst dumping operation, even
after the skip has descended to the ground if
necessary or desired without operating the water
tank. When the skip has been lowered to the
ground the brake lever can be pushed backward
55 until the brake is fully released, so that the brake
will not interfere with the next skip elevating
operation, and it must be moved back beyond this
brake releasing position to move the member 2
through the arm 2" so as to cause closing of the
tank discharge valve and re?lling of the tank.
It will be seen from the foregoing that the im
provements provide means for the simple and
quick operation of the water supply in synchro
nism with the supply of dry aggregates through
65 the medium of a hydraulic actuation and control
of the former, but without making the operation
of the one dependent, either directly or indi
rectly, upon the actuation of the other, and for
the precise adjustment of the connecting means
70 to insure accurate coordination. They also pro
vide means for quickly and easily converting the
supplementary operation to entirely separated
operation by independent operating means and
vice versa, and also for the independent opera
tion of. the skip control instrumentalities while
the water control is arranged for single control
operation.
What I claim is:
1. In apparatus of the character indicated in
combination with means actuating a loading de
vice and for returning the same to load receiving
position and means for discharging water into a
mixing drum or the like, a clutch operating lever
for the loading device operating mechanism and
a brake operating lever for said device, means for 10
actuating said water discharge means, communi
cating means between the ?rst two instrumentali
ties and the third comprising a movable member
in the path of said levers and adapted to be
contacted by the clutch operating lever when 15
moved to clutch engaging position and by the
' brake operating lever when moved from brake
applying position, the ?rst movement actuating
the water discharge device and the second re
storing it to non-acting position, a connection 20
between said movable member and the water dis
charge actuating means whereby movement of
the former operates the latter, and means for
manually breaking said connection.
2. In apparatus of the character indicated in 25
combination with means actuating a loading de
vice and for returning the same to loading receiv
ing position and means for discharging water into
a mixing drum or the like, a clutch operating
lever for the loading device operating mechanism
and a brake operating lever for said device, means
for actuating said water discharging means, com
municating means between the ?rst two instru
mentalities and the third comprising a movable
member in the path of said levers and adapted to
be contacted by the clutch operating lever when
moved to clutch engaging position and by the
brake operating lever when moved from brake
applying position, the ?rst movement actuating
the water discharge device and the second restor 40.
ing it to non-acting position, a connection be
tween said movable member and the water dis
charge actuating means whereby movement of
the former operates the latter, means for manu
ally breaking said connection and means for vary
ing the extent of movement of said connection
relative to one of the parts with which it is con~
nected.
A
3. In apparatus of the character described in
combination with means actuating a loading de 50
vice and for returning the same to load receiving
position and means for discharging water into a
mixing drum or the like, a clutch operating lever
for the loading device operating mechanism and
a brake operating lever for said device, means for 55
actuating said water discharge means, communi
cating means between the ?rst two instrumen
talities and the third comprising a movable mem
ber in the path of said levers and adapted to be
contacted by the clutch operating lever when 60
moved to clutch engaging position and by the
brake operating lever when moved from brake
applying position, the ?rst movement actuating
the water discharge device and the second restor
ing it to non-acting position, a connection be 65.
tween said movable member and the water dis
charge actuating means whereby movement of
the former operates the latter, means for man
ually breaking said connection and means for
varying the contact point between one of said 70
levers and said movable device.
4. In apparatus of the character described in
combination with means actuating a loading de
vice and for returning the same to load receiving
position and means for discharging water into'a
2,119,144
3.
mixing drum or the like, a clutch operating lever
for the loading device operating mechanism and
a brake operating lever for said device, means
for actuating said water discharge means, com
C71, municating means between the ?rst two instrue
mentalities and the third comprising‘ a movable
said re?lling and a connection between said
member and the discharging and re?lling means
whereby the said movements of the former respectively cause the latter to bring about the
member in the path of said levers and adapted
to be contacted by the clutch operating levers
when moved to clutch engaging position and by
10 the brake operating lever when moved from
brake applying position, the ?rst movement ac
tuating the water discharge device and the sec~
means.
ond restoring it to non-acting position, a con
nection between said movable member and the
15 water discharge actuating means whereby move
ment of the former operates the latter, means
for manually breaking said connection and
means for varying the contact point between said
20
said discharging and re?lling operations without
the assistance or intervention of the loading
8. In mechanism of the character described,
means for instituting the operation of a load
ing device, means for controlling mechanism for 10
retarding the movement of said device and means
for causing the discharge of liquid from a con
tainer into a mixer and for causing the re?lling
of said container, a- movable member adjacent
the ?rst and second means positioned to be en 1.5
gaged and moved in one direction by the ?rst
means and engaged and moved in another direc
tion by the second means, the ?rst movement
causing said discharge and the second causing
levers and said movable device.
5. In apparatus of the character indicated a
combination with means actuating a loading de
vice and for returning the same to load receiv
ing position and means for discharging water
said re?lling and a connection between said 20,
member and the discharging and re?lling means
whereby the said movements of the former re
spectively cause the latter to bring about the
into a mixing drum or the like, a clutch operat- ~
said discharging and re?lling operations without
ing lever for the loading device operating mecha
the assistance or intervention of the loading 25
nism and a brake operating lever for said device,
means for actuating said water discharge means,
communicating means between the ?rst two in
strumentalities and the third comprising a mov
able member in the path or" said levers and adapt
ed to be contacted by the clutch operating lever
means and means for varying the points of con
when moved to clutch engaging position and by
tarding the movement of said device and means
for causing the discharge of liquid from a con
tainer into a mixer and for causing the re?lling
of said container, a movable member adjacent 35
the brake ‘operating lever when moved from
brake applying position, the ?rst movement actu
35 ating the water discharge device and the second
restoring it to non-acting position, a connection
between said movable member and the water dis
charge actuating means whereby movement of
the former operates the latter, means for manu
40 ally breaking said connection and means for
tact between said ?rst two means and said
movable member.
9. In mechanism of the character described,
means for instituting the operation of a loading 30
device, means for controlling mechanism for re
the ?rst and second means positioned to be en
gaged and moved in one direction by the ?rst
means and engaged and moved in another direc
tion by the second means, the ?rst movement
varying the length of said connection.
causing said discharge and the second causing 40
said re?lling and a connection between said
6. In apparatus of the character indicated in
combination with means actuating a loading de
vice and for returning the same to load receiv
member and the discharging and re?lling means
whereby the said movements of the former re
spectively cause the latter to bring about the said
45 ing position and means for discharging water
into a mixing drum or the like, a clutch operat
assistance or intervention of the loading means
ing lever for the loading device operating mecha
nism and a brake operating lever for said device,
means for actuating said water discharge means,
nection.
10. In mechanism of the character described,
communicating means between the first two in
strumentalities and the third comprising a mov
able member in the path of said levers and
adapted to be contacted by the clutch operating
lever when moved to clutch engaging position
55 and by the brake operating lever when moved
from brake applying position, the ?rst movement
actuating the water discharge device and the
second restoring it to non-acting position and
causing actuation of water re?lling means, a
60 connection between said movable member and
the water discharge actuating means whereby
movement of the former operates the latter, and
means for manually breaking said connection.
'7. In mechanism of the character described,
65 means for instituting the operation of a loading
device, means for controlling mechanism for re
tarding the movement of said device and means
for causing the discharge of liquid from a con
tainer into a mixer and for causing the re?lling
of said container, a movable member adjacent
the first and second means positioned to be en—
gaged and moved in one direction by the ?rst
means and engaged and moved in another direc
tion by the second means, the ?rst movement
75 causing said discharge and the second causing
discharging and re?lling operations without the 45
and means for manually interrupting said con‘
means for instituting the operation of a loading 50
device, means for controlling mechanism for re
tarding the movement of said device and means
for causing the discharge of liquid from a con
tainer into a mixer and for causing the re?lling
of said container, a movable member adjacent 55
the ?rst and second means positioned to be
engaged and moved in one direction by the ?rst
means and engaged and moved in another (11- '
rection by the second means, the ?rst movement
causing said discharge and the second causing
said re?lling and a connection between said
member and the discharging and re?lling means
whereby the said movements of the former re
spectively cause the latter to bring about the
said discharging and re?lling operations Without 65
the assistance or intervention of the loading
means and means for varying the position of said
connection with respect to the movable member
and the last named means.
11. The combination with a lever for actuating 70
operation of a loader for dry aggregates, a brake
operating lever for controlling the non-loading
movement of said loader and water supply con
trol mechanism, of .means- for automatically
operating said controlling mechanism by the
75,
4
2,119,144
movement of said levers, comprising a movable
member connected with the former having por
tions in the path of both levers whereby said
member is moved in one direction by one of said
levers and in another direction by the other to
actuate the said water supply control mecha
nism, the portion in the path of the second
named lever being spaced therefrom to permit
normal operation thereof without such actuation.
12. The combination with a lever for actuat
10
ing operation of a loader for dry aggregates, a
brake operating lever for controlling the non
loading movement of said loader and water sup
ply control mechanism, of means for automati
cally operating said controlling mechanism by
the movement of said levers, comprising a mov
able member connected with the former having
portions in the path of both levers whereby said
member is moved in one direction by one of said
20 levers and in another direction by the other to
actuate the said water supply control mecha
nism, the portion in the path of the second
named lever being spaced therefrom to permit
normal operation thereof without such actuation
25 and means for manually disconnecting said
member from said control to permit independent
control mechanism, of means for automatically
operating said controlling mechanism by the
movement of said levers, comprising a movable
member connected with the former having por
tions in the path of both levers whereby said
member is moved in one direction by one of said
levers and in another direction by the other to
actuate the said water supply control mecha
nism, the portion in the path of the said levers
being capable of being spaced therefrom to per 1O
mit normal operation thereof without such ac
tuation.
14. The combination with a lever for actuating
operation of a loader, for dry aggregates, a brake
operating lever for controlling the non-loading 15
movement of said loader and water supply con
trol mechanism, of means for automatically
operating said controlling mechanism by the
movement of said levers, comprising a movable
member connected with the former having por
tions in the path of both levers whereby said
member is moved in one direction by one of said
levers and in another direction by the other
to actuate the said water supply control mecha
nism, the portion in the path of the said levers
being capable of being spaced therefrom to permit
manual operation of said control.
normal operation thereof without such actuation
13. The combination with a lever for actuating .and means for manually disconnecting said
operation of a loader for dry aggregates, a brake member from said control to permit independent
operating lever for controlling the non-loading manual operation of said control.
30
movement of said loader and a water supply
JOSEPH R. WILLIAMS.
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