US2316132A - Water supply tank for concrete mixers - Google Patents

Description

April'fi, 1943. a. JAEGER WATER SUPPLY TANK FOR CONCRETE MIXERS Filed July 50, 1940 Patented Apr. 6, 1943 WATER SUPPLY TANKFOR CONCRETE MIXERS Gebhard Jaeger, Columbus, Ohio, assignor to The JaegerMachine Company, Columbus, Ohio, a

corporation of Ohio Application July 30, 1940, SerialNo..348,526

4 Claims.

My invention relates to a water supply tank.

for concrete mixers. Ithas-to-do, more particularly, with a control system for controlling the iiow-=of water from the tank into the mixer.

This invention is particularly applicable to that type of water supply tank and measuring tank for concrete mixers which is disclosed in United StatesLetters- Patent of Clarence I. Bohmen and Arthur-E. Davis, No.- 2,191-,4 19; February One of: the objects ofmy invention is to providea-simplevalve control system for controlling t'heflow of water fromthe tank to the'mixer.

Anothercbject ofmyinvention is to provide a valve-control systemfor operating a plurality of'valveswhichis of suchanature that all the valves may beoperated from a single point in an easy and 'eificient manner.

Another'object of my invention is to-provide a booster associated with the tank and the various valves for forcing the watergwithdrawn fromthe tank through the valves; into the mixer under pressure; thebooster being of such anature that it, will permit by-passing of the water into the mixer when not in operation.

Another object of my-invention' is to providea valve control system. and-booster oi the type indicated-which are, associated with eachother and form a single unit'thatmay be readily removedfrom the tank for replacement of parts.

Various other objects; will be apparent from the following description.

In the device shown in said'Patent-No. 2,191,- 419, three valves are shown for controlling the flow of water from the tank into the mixer. One of'these valves is employed forallowin-gthe main supply of water in a predetermined amount to flow into. the mixer; The amount suppliedis determined by adjustment of;a syphon device. Another valve is provided" for allowing tempering water'to flow into the mixer. That is,.this valve permits a small amount of additional water to flow into the mixer, if needed, after the said predetermined" amount is supplied. The other: valve is associated with a wash-water compartment, formed, in the tank, and may be operated to permit" wash-water to enter the mixer after the mixed" material has been discharged;

f The present invention relates to a control-system for these various valves. According to this invention I? provide a simple control, system by whichthe various valves may beoperated from a single point with ease. I also provide a booster associated with. the control. system for receiving the water allowed to, emerge from the tank by operationof' any of said valves and for forcing this water under pressure into the mixer. The valve control system and booster are associated together as a single unit which may be readily applied to or removed from the tank.

v The preferred embodiment of my invention is illustrated in the accompanying drawing wherein similar characters of reference designate, corre sponding parts and wherein:

Figure 1 is a view partly in section andpartly in side elevation, showing, a water tank; with my invention associated therewith.

Figure 2. is a View partly in perspective and partly in: section of the. control systemwhich I provide.

Figure 3 is an end view, partly broken away, of the structure shown in Figure 2.

Figure 4 is a perspective view illustrating how the water tank, having my invention associated therewith, is disposed. on a mixer.

With reference to the drawing, in Figure I have illustrated a water supply tank I. This tank is adapted to. be mounted adjacent to the mixing drum to be supplied with water, as illus tratedin Figure i. As. described in said Patent No. 2,191,419, the tank is provided with a vertical partition 3 for dividing the tank into a main. compartment 3 and a wash-water compartment 5. A syphon device 6 of the type disclosed in said patent isprovided for withdrawing a predetermined amount of water'from the compartment i This water leaves the tank through a valve opening 'I in the bottom of the tank. A'valve opening 8 is provided for withdrawing .tempering water from the compartment 4. A third' valve opening 9 is provided for withdrawing wash-water from the compartment 5.

I provide a longitudinally extending tube [0 below the tank. This tube I0 is provided with three upstanding tubular inlets l I which are connected to the tank! in association with the openings 1, 8 and 9. The upper end of each of the inlet members H has a peripheral flange I2 formed thereon which is bolted to the tank by means of bolts I 3, a gasket l4 being provided be-' tween the flange and the tank to. prevent leakage. 4 Each valve opening 1, 8. and 9. is under the control of valve mechanism indicated by the numerals la, 8a and 9a, respectively.

Each of these mechanisms consists of a piston type valve member l5, which tightly fits within the cooperating member II and is adapted to move vertically therein. The member l5 has a depending guide structure l6, in the form of a framework, which also fits tightly Within the member H and serves to guide themember I15 particularly when it is moved upwardly out of the member H. The guide structure It has a depending pin ii on its lower end. A compression spring It has its lower end disposed in the cup-shaped upper side of the valve member ii. The upper end of this spring bears against a plate l9. This piate I9 has lugs 26 on its opposite ends which fit into oppositely directed notches formed in the upper ends of a pair of supports 2!. These supports 2| are carried by the flange l2 and are diametrically opposed. The force of the spring [8 will normally hold the plate [9 in position. .However, in order to remove the plate 19, it is merely necessary to rotate it in the proper direction so that the lugs will swing out of the notches in the members 2|.

Thus, the spring l8 may be readily removed and replaced. The spring I8 normally tends to force the valve member l5 downwardly. It will be understood that when the member I5 is downwardly within the member I, the valve opening will be closed. However, if the member I5 is moved upwardly so that it is disposed above the upper end of member I l and the guide por tion 16 is still in member H, the valve opening will be opened to permit passage of water therethrough.

In order to operate these valves, I provide the following structure. A shaft 22 extends longitudinally through the tube HI. This shaft is rotatably mounted in a bearing 23 in one end of the tube and in a sleeve 24 disposed at the other end of the tube. This sleeve. 24 will rotate in. a bearing 25 disposed in the end of tube in and on the shaft 22. The shaft 22 has keyed thereon a cam lb and a cam 817. Thes cams will contact with the pins I! of the valve operating mechanisms la and 8a. The sleeve 24 carries on its inner end a cam 91) which is adapted to contact with pin H of the valve operating mechanism 911. The sleeve 24 has a handle lever 26 keyed on its outer end by means of which it may be rotated. The shaft 22 has a handle lever 21 keyed on its outer end by means of which it may be rotated. A disc member 28 is disposed on the outer end of the tube It] and is associated with handle members 26 and 21, as indicated. Pins 29 and 30 on the disc limit movement of the handle 26 which controls the wash-water v'alve mechanism 9a. The pin 30 and an additional pin 3| control movement of the handle 21 which controls the main water supply valve mechanism 1a and the tempering water supply valve mechanism 8a.

The cams lband 8b. are so disposed relative to each other that when the {handle 21 is rotated from the intermediate point, indicated in Figure 3, towards the pin 3|, the valve mechanism la will be operated to open the valve, and when the handle is rotated towards the pin 35, the valve mechanism 8a will be operated to open the valve. These two valves may be operated independently of the valve mechanism 901.. The valve mechanism Ba'is operated merely by moving handle 26 between the pins 29 and 30.

An outlet portion 32-leads from the bottom of tube ll). This outlet is connected to a booster housing 33. This booster housing 33 incloses a rotatable member, 34 which carries a suitable blade or vane that tends to force the water downwardly. The blade is preferably helically arranged. This member 34 is driven by a shaft 35 which may be connected to any suitable source of power preferably the transmission 35a (Figure 4) of the mixer drum rotating mechanism. The member 34 is of such a nature and fits in housing 33 with clearances so that it will permit a free flow of water past it, even if it is not rotating. The discharge line 36 of the booster is connected to a pipe 3'! which extends axially into themixer drum and which may'carry a water distributing device 38. This device 38 may be of the type disclosed in my co-pending application 201,250, filed April 11, 1938, Patent 2,225,374.

It will be apparent that all of the water which flows from the tank through the openings 1, 8 and 9 will enter into the tube It. This water will then flow through the outlet 32. The booster will force the water under pressure through the discharge pipe 36 into the pipe 31.

It will be apparent from the above description that my invention has a number of advantages.

. I provide a simple and efficient valve control system for controlling the flow of water from the tank to the mixer. All of the valves may be selectively operated from a single point with ease. Furthermore, the booster which I provide will force the water, leaving the tank through the various valve controlled openings, into the mixer. If the booster becomes inoperative for any reason, for example failure of the source of power, iihe water can still flow past the booster into the mixer. My device constitutes a single unit which may be readily removed from the tank and replaced in order to renew certain parts.

Various other advantages will be apparent from the drawing and the following claims.'

Having thus described my invention what I claim is: a

1. In combination with a water supply tank having a plurality of outlets, a housing connected to'all of said outlets, valve mechanism for controlling each of said outlets, said mechanism normally keeping the valve closed, means for opening said valves, said means comprising a rotatable shaft extending through said housing and carrying cams adapted to engage some of said Valve mechanisms, a rotatable sleeve disposed on said shaft and carrying at least one cam adapted to engage one of said valve mechanisms, and means for rotating said shaft and said sleeve independently of each other from a point outside of said housing.

2. In combination with a water supply tank having a plurality of outlets, a housing connected to all of said outlets, valve mechanism for controlling each of said outlets, said mechanism normally keeping the valve closed, means for opening said valves, and means comprising a rotatable shaft extending through said housing and carrying cams adapted to engage some of said valve mechanisms, a rotatable sleeve disposed on said shaft and carrying at least one cam adapted to engage one of said valve mechanisms,

means for rotating said shaft and said sleeve independently of each other from a point outside of said housing, said housing being provided with an outlet, a booster housing connected to said outlet, and a booster disposed in said housing for forcing the water which leaves said tank through said outlet to the point where it is to be used.

3; The combination set forth in claim 2 wherein the booster is of such a nature that it will permit flow of water past it when it is not operating.

4. In combination with a water supply tank having a plurality of outlets, a housing connected to all of said outlets, valve mechanism for controlling each of said outlets, means for operating said valve mechanisms, said means comprising a rotatable shaft extending through said housing and carrying at least one cam adapted to engage one of said valve mechanisms, a rotatable sleeve disposed on said shaft and carrying at least one cam adapted to engage one of said valve mechanisms, and means for rotating said shaft and said sleeve independently of each other from a point outside of said housing.

GEBHARD JAEGER;

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