US1679614A

US1679614A - Multiple-tank water-supply mechanism

Info

Publication number: US1679614A
Application number: US46313A
Authority: US
Inventors: Erich H Lichtenberg
Original assignee: Koehring Co
Current assignee: Koehring Co
Priority date: 1925-07-27
Filing date: 1925-07-27
Publication date: 1928-08-07
Anticipated expiration: 1945-08-07

Description

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E. H. LICHTENBERG IULTIPLE TANK WATER SUPPLY MECHANISM Original Filed July2 1925 2 Sheets-Sheet l 311mm Ho t,

Aug. 7, 1928.

E. H. LICHTENBERG.

I ULTIPLE TANK WATER SUPPLY IECH AN I SI Oxiginal Filed July 27, 1925 2 Sheets-Sheet 2 Patented Aug. 7, 1928.

UNITED STATES 1,679,614 PATENT OFFICE.

ERICK H. LICHTENBEBG, OI MILWAUKEE, WISCONSIN, ASBIGNOB TO KOEHBING GOI- PANY, OI MILWAUKEE, WISCONSIN.

MULTIPLE-TANK WA'IEBFSUPI'LY manual.

' Application fled July 87, 1925, Serial Il'o. 48,818 Renewed October 14, 1987.

This invention embodies novel water supply means for concrete mixers. The equipment provided in accordance with the invention involves the use of multiple tank valve mechanism of the invention, the said valve mechanism being interposed between the multiple supply tank means and an outflow pipe which leads to the mixerand is common to said multiple tank means.

The novel design of the valves used is especially advantageous for causing less wear, and therefore renewals of valves are reduced materially, promoting the long life of the valve apparatus in a manner which will appear more fully hereinafter. A further object of the invention has been to roduce an arrangement of valves wherey the pressure of the water from the main supply water line will act upon the valves with counterbalancing effects so that it is never necessary to adjust the valve means against the full pressure entering the valve casing from the main water line.

30 A further object of the invention resides in certain provisions made for facilitating the removal and renewal of the valve means, when after long use occasion may arise for such operation.

With the fore oing and other objects in view, a full understanding of this invention will be had upon reference to the following description in conjunction with the accompanying drawings, in the latter of which:

Figure 1 is asort of diagrammatical view showing the adaptation of the'invention to its use in connection with concrete mixing machines. Figure 2 is a vertical sectional view taken through the valve casing and adjacent pipe connections. a

Figure 3 is a top plan view of the same. Figure 4 is a view looking toward "the valve casing from the side thereof at which the water tank connecting pipes are arranged. Referring to the drawings, the mixing 4 machine diagrammatically illustrated in- 56 volves the mixing drum 1 supported on a scribed in detail.

suitable drama 2 and adapted to be charged w th SOlld aggregates by means of a loadin skip 3, these parts being of conventiona i construction now in use and need not be do- At suitable points on the frame 2 of the machine, preferably near'its upper portion,

are located water measuring tanks 4 and 5.

These measuring tanks 4 and 5 may each be equipped with. water measuring appliances for measuring a predetermined quantity of water of sufficient amount necessary for admixture with a batch of solid aggregates that may be charged into the drum 1. They measuring means may be of any conventional type andv does not form a part of the present mventlon itself. In this connection reference is had to a typical measurin tank construction such as may be utilized, the same be ng shown in United States Letters Patent of Koehring Patent No. 1,149,922, issued August 10, 1915. v

The water tanks 4 and 5 are respectively erplnpped with water outflow pipes 6 and 7. T e pipes 6 and 7 lead downwardly from the tanks 4 and 5 to a valve casing 8 of peculiar construction. The said casing 8 is provided with a top plate 9 bolted or otherwise attached thereto, to close its upper end, and formed with a guide member 10 co operative with a ide stem 11 at the up er end of a valve-re 12,which.operates wit in the casing 8 but passesthrough a bottom closure plate 13 at the lower extremity'of said casing. The valve rod 12 may be connected to be manually operated, or under certainconditions may be operated by the ski 3, in order to shift the valvemeans on sai rod u and down for purposes made more clear ereinafter. The-valve casing 8 95 has inflow ports14 and 15 with which, reapectively, the pipes 6 and 7 are connected.

he inflow ports 14 and 15 are spaced a short distance from the ends of the casing 8, be-

ing closer together than are the outflow ports 16 and 17 which are preferably located on the casing 8 at the side opposite the ports 14 and 15. Said ports 16 and 17 are respectively near the upper and lower ends of the casing and' a manifold member 19 168(15105 valve casing 8 is provided with a central 7 at opposite ends of the upper inflow chamsitions upon the rod 12.

ber 23. The valve 28 is adapted to reciprocate between

valve seats

31 and 32 which are located at opposite ends, so to speak, of the inflow chamber 24. The said

valves

27 and 28 are of a larger diameter, of course, than are their valve seats for which reason to facilitate introduction and removal of the valves in respect to the casing 8, the

various seats

29, 30, 31 and 32 are made removable. Each seat is preferably comprised of an annular body screwed into athreaded opening formed in the annular wall of the casing 8.

The

valves

27 and 28 are of like constructions. Each valve is made up of a body disc or discs removably fitted upon the valve rod 12 by the provision of a shoulder 33 on the rod 12, having an abutting relation with the bottom of the valve 28. A sleeve 34 is mounted upon the rod 12 with its lower end abutting against the upper side of the valve 28 and its upper end cooperating with the underside of the valve 27. Above the valve 27 there is screwed upon the rod 12 a clamping nut 35 which nut firmly holds the

valves

27 and 28, and their cooperating abutting parts just described in proper assembled po- Removal of the

valves

27 and 28 maybe eflected by detaching the lower plate 13 of the casing 8, unscrewing the

valve seats

30, 31 and 32, and displacing the valve rod with said valves thereon, through the lower end of the casin 8.

The lower end of the manifold 19 providing the outflow passage 21 is connected with a pipe 36 by which the water entering the passage 21 ma be conducted to the mixin drum 1. Or, t c said manifold 19. may be 0% suflicient length to lead directly into the mixing drum. The foregoing is immaterial in the purview of the invention. A stufling box 37 may be provided in the lower closure plate 13 of the casing 8.

At one side of the central water supply chamber 22 is provided a water supply port 38 with which is connected a pipe 39 leading from the main water supply line availed of to provide a water supply to the mixing machine. The water enters the chamber 22 through the port 38 and pi e 39 at varying because the pressure areas of the valves u on which the water effectively acts are t e same until the valves are seated one way or the other, whereupon the pressure acting to hold the valve in its seated osition is somewhat greater than that actmg to unseat it. Throughout the movement of the valve means therefore, the water pressure entering at the water port 38 acts with equal forces upon the

valves

27 and 28, under which conditions there is produced a'comparative ease of the operation of the valve rod 12 under ractical conditions of use.

In t e operation of the invention, and bearing in mind that the tanks 4 and 5 might be a single tank structure divided into two water compartments, it will be apparent that when the

valves

27 and 28 are arranged in the positions of Figure 2, the

water is passing from the tank 5 through chamber 22 is connected with the inflow chamber 23, the pipe 6 and tank 4 so that the tank 4 is being refilled or has been filled owing to the connection thereof with the main water line supply pi e 39. Let us suppose that the valve ro 12 is pulled downwardly to seat the valve 27 against the seat 30 and the valve 28 against the seat 32. Then the water will flow from the tank 4 through the chamber 23 up to the chamber 25, out through the passage 21, down through the pipe 36 to the mixing drum. At this time, of course, the supply line port 38 is cut oil from the tank 4 and pipe 6, but

at this time also, the water supply chamber 22 is in communication with the chamber 24, pipe 7 and the tank 5 and is refilling or has refilled said tank 5 in an obvious manner.

When the valve 27 is in the position of Figure 2, it is obvious that the water from the main supply line cannot enter the tank 5 because the valve 28 is seated against the seat 31 and cuts off the supply of water in the'chamber 22 from the tank 5.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is:

1. In water supply means for concrete mixing machines, in combination, a valve casin comprising a central water supply cham er to receive some water from a main water supply line, valves arranged in said casing at opposite ends of said chamber,

UNI

valve seats in said casing arranged in pairs at opposite ends of said chamber, the seats of each pair being located upon opposite sides of one of the valves, water inflow ports communicating with the casing between the valve seatsof said airs of seats, water outflow chambers, one located at the outer side of the outermost of one pair of valve seats and the other located at the outer side of the outer one of the other pair of valve seats, outflow passage means connected with the outflow chambers, and means for operating the valves.

2. In means of the class described, in combination, a valve casing having a main line water supply port, valves at opposite sides of said port and movable so as to maintain positions always on opposite sides of the port, a pair of valve seats for each valve between which the valve operates, water inflow ports communicating with the casing at points between the valve seats, water outflow ports communicating with the casing at points beyond the valve seats which are more remote from the water supply port and means for operating the valve.

3. Valve means of the class described, comprising a casing having separate water inflow pipes connected therewith, a water main line supply port communicating with the casing between said inflow pipes, an outflow chamber adjacent to each inflow pipe I but more remote from the water su ply port than. the inflow pipe connection therewith, valves mounted in the casin valve seats intermediate each valve and t e water supply port, a valve seat intermediate each valve and the adjacent outflow chamber, said valve seats and valves being adapted to engage face on, and means for operating the valves'to establish communication between an inflow pipe and the water supply port while said inflow pipe is cut off by a valve from the adjacent water outflow chamber,

with, valves mounted in the casing, valve seats intermediate each valve and the water supply port, a valve seat intermediate each valve and the adjacent outflow chamber,

said valve seats and valves being adapted to en age face on, andmeans for operating the va ves to establish communication between an inflow pipe and the water supply port while said inflow pipe is cut ofl by a valve from the adjacent water outflow chamber, and the other inflow pipe is cut o-fl'i from communication with the water supply port while in communication with the adjacent water outflow chamber, the means for 0 erating the valves comprising a rod on w ich the valves are removably mounted and means for holding the valves in place on said rod.

5. Valve means of the class described comprising a casing having a-water supply port at its central portion, valve seats at opposite sides of said ort and within the casing, a valve seat ad aCent to each of the valve. seats aforesaid, spaced therefrom, a valve between each of the last mentioned valve seats and its particular adjacent valve seat, water inflow pipes communicating with the casing at points between each set of valve seats on opposite sides of the water supply port, an outflow assage means leading from the casing and having controlled communication with the inflow pipes by means of said valves.

6. Valve means of the class described comprising a casing having a water supply port at its central portion, valve seats at opposite sides of said ort and within the casing, a valve seat ad acent to each of the valve seats aforesaid, spaced therefrom, a valve between each of the last mentioned valve seats and its articular adjacent-valve seat, water inflow pipes communicatin with the casing at points between each set 0 valve seats on opposite sides of the water su ply port, an outflow passage means leading rom the casin and having controlled communication w1th the inflow pipes by means of said valves, means to actuate the valves com' prising a rod extending longitudinally of the casing therein, detachable means securing the valves on the rod so that the valves coact with'the valve seats by engagement face on therewith, the valve seats being of smaller diameter thap the valves and being removably mounted in the casing for detachment therefrom to permit removal of the valves.

In testimon whereof I afiix m si ature.

E IGH H. LICHTE B RG.,