US972243A - Apparatus for mixing and containing liquids. - Google Patents

Description

P. PURDY. APPARATUS FOR MIXING AND CONTAINING LIQUIDS.

APPLIOATION FILED NOV. 22, 1909.

972,243. Patented Oct. 1 1,191 o.

- W IHI 6119619, J2 Me)? for," ,Z7 363 676 357757 UNITED STATES PATENT OFFICE.

FREDERICK PURDY, OF KENOSI-IA, WISCONSIN, ASSIGNOR TO THOMAS B. JEFFERY, OF KENOSI-IA, WISCONSIN; KATE E. JEFFERY, CHARLES T. JEFFERY, AND HAROLD W. JEFFERY EXECUTORS 0F SAID THOMAS B. JEFFERY, DECEASED.

APPARATUS FOR MIXING AND CONTAINING LIQUIDS.

Specification of Letters Patent.

Patented Oct. 11, 1910.

To all whom "it may concern:

, Be it known that I, FREDERICK PURDY, a citizen of the United States, residing at Kenosha, county of Kenosha, State of Wisconsin, have invented a certain new and useful Improvement in Apparatus for Mixing and Containing Liquids, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention has for its object to provide a simple and novel apparatus whereby two liquids may be automatically mixed in predetermined proportions regardless of the quantity in which one of said liquids is supplied.

A further object of my invention is to provide means whereby it is impossible to supply one of the liquids unless the conditions are such that the other liquid will be caused to be introduced automatically.

The various features of novelty whereby my invention is characterized will hereinafter be pointed out with particularity in the claims; but, for a full understanding of my invention and of its object and advantages, reference may be had to the following detailed description taken in connection with the accompanying drawing wherein:

Figure 1 is a sectional view showing a fragment of one form of apparatus embodying my invention, the condition being that wherein one of the liquids has been supplied and prior to the introduction of the other liquid, the section being on line l-1 of Fig. 4; Fig. 2 is a view similar to Fig. 1, showing the condition after the second liquid has been introduced; Fig. 3 is a view similar to Figs. 1 and 2, showing the condition after a portion of the mixture has been withdrawn; Fig. A is a view partly in elevation and partly in section, showing a fragment of the apparatus, the section being taken on line 4t4 of Fig. 1; Figs. 5 and 6 are sec tions taken on line 55 of Fig. 4:, showing different positions of the controlling shaft.

In my application, Serial No. 529,258, filed on even date herewith, I have disclosed a novel form of apparatus for automatically mixing together two liquids in predetermined proportions; the invention being particularly applicable to mixing a lubricating oil with a liquid fuel, such as gasolene, without being limited to these particular liquids. The present invention relates to the same art and particularly to means for preventing one of the liquids from being supplied when the conditions are not such that a proper mixture may be obtained.

Referring to the drawing, A represents a reservoir for containing one of the liquids, to which I shall hereafter refer as gasolene and B is an auxiliary reservoir for containing the other liquid, to which I shall hereafter refer as lubricating oil.

G is a closed chamber which opens into the main reservoir at the bottom thereof through an opening 0.

The auxiliary reservoir is made up of two compartments, an outer compartment Z2 and an inner compartment 6 which communicate at their lower ends through an opening Z1 The compartment b of the auxiliary reservoir is closed at the top and communicates with the chamber through a conduit D which opens at its ends into the tops of this compartment of the auxiliary reservoir and the closed chamber. The closed chamher is so proportioned that its cubic contents are equal to the volume of lubricating oil which it is desired to mix with a quantity of gasolene which will fill the main reservoir. The compartments 6 and b are shown as being approximately equal in size although, in some aspects of my invention, this is not material. The compartment 6 of the reservoir is closed at the top and ex tends somewhat above the top of the other compartment so as to provide a free space above the oil level in the compartment 12 when both compartments are filled.

E is an overflow pipe which extends from the upper end of the compartment 72 of the auxiliary reservoir into the main reservoir.

F is an inlet pipe from which oil may be supplied to the auxiliary reservoir.

As in my aforesaid application, the auxiliary reservoir is first filled with oil and then the gasolene is poured into the main reservoir through a suitable port G. When the pouring of the gasolene begins the condition is that illustrated in Fig. 1. As soon as there is an appreciable quantity of gasolene in the main reservoir some of the gasolene enters the closed chamber through the opening a and thereafter, as the liquid level rises in the main reservoir, that in the closed chamber follows, but more slowly, forcing the air out of the top of the chamber into the top of the compartment 7) of the'auxiliary reservoir. The downward pressure upon the lubricating oil in the outer compartment of the auxiliary reservoir causes some of the lubricatin oil to flow into the inner compartment an thence through the overflow into the main reservoir. This process continues progressively as the main reservoir is being filled until finally a condition is reached wherein the main reservoir is full and the compartment 12 of the auxiliary reservoir has been emptied to a point in proximity to the opening 6 as indicated in Fig. 2. Thereafter, as the mixture is withdrawn from the main reservoir, reducing the head of the gasolene, the oil in the inner compartment of the auxiliary reservoir begins to flow back into the outer compartment. Fig. 3 illustrates the condition after approximately half of the mixture has been withdrawn from the main reservoir. As the withdrawing process continues, the

- oil level in the outer compartment will rise until the oil level in the two compartments is the same. If, after the main reservoir has been partially or wholly emptied, it is desired to pour additional gasolene into the main reservoir, then, if for any reason there has not been an addition to the supply of oil in the auxiliary reservoir, no more oil can be transferred from the auxiliary reservoir into the main reservoir and the liquid in the main reservoir will not consist of the desired proportions of oil and gasolene. This failure in the oil supply may be due either to the fact that the auxiliary reservoir is intended to carry the entire supply, or because of emptiness of the oil tank which is to furnish oil to the auxiliary reservoir. For the sake of simplicityI have illustrated only an arrangement wherein the auxiliary reservoir is intended to carry the whole supply of oil, although it will be evident that the supply in the auxiliary reservoir may fail even where means are provided for furnishing oil to the auxiliary reservoir. 7

In accordance with one feature of my invention, where the condition of the oil in the auxiliary reservoir is such that a transfer of the requisite amount of oil to the main reservoir cannot take place upon the introduction of gasolene into the main reservoir,

I provide means which will give a positive indication to the user so that he will not carelessly fill his gasolene reservoir. In order positively to prevent gasolene from being poured into the main reservoir except under proper conditions, I prefer-to make the indicating means serve'as a lock or closure which Wlll prevent access to the interior of themam reservoir until the proper condition in the oil reservoir is restored. To this end I have provided in the inner compartment of the auxiliary reservoir a float I which is connected by a crank arm 2' to a revoluble shaft K. The shaft is extended to a point adjacent to the inlet port G and there has a portion thereof on one side cut away, as at is.

L is a cover for the port G, this cover being carried upon the end of a curved arm M which is pivotally mounted adjacent to its other end, as at m, on the upper Wall of the main reservoir. The inner end an), of the arm, extends into proximity to the reduced portion of the shaft K, the parts being so proportioned that the shaft in one position thereof serves as a stop which engages with the end m of the arm and prevents the cover from being lifted, while in another position of the shaft the arm is left free so that it may be swung outwardly and cause the port to be uncovered. If desired, a spring N may be provided for swinging the arm and raising the cover when free to do so. In this case, I prefer to provide an additional cover 0 which may be in the form of a screw cap or the like and which serves to lock the cover L in place and prevent foreign matter, from entering the main reservoir at times when the cover L Would otherwise be open. The parts are so proportioned and arranged that the float brings the shaft into its unlocking position before the liquid level in the inner compartment of the auxiliary reservoir has reached the overflow point. This condition of the parts is illustrated in Figs. 1, 2, 4t, and 5, the position which the parts L and M tend to assume as soon as the cover 0 is removed being indicated in dotted lines. As soon as the Withdrawal of the mixture from the main reservoir begins, producing a fall in the oil level in the auxiliary reservoir, the float drops as indicated in Fig. 3 and rotates the shaft into its locking position as indicated in Fig. 6. The portion m of the arm now bears directly against the shaft and the arm is locked against movement so that if the user attempts to pour more gasolene into the main reservoir, he is unable to do so; it being necessary first to fill the auxiliary reservoir with oil so as to raise the float and unlock the protective cover.

While I have described in detail only a single preferred embodiment of my invention, I do not desire to be limited to the particular structural details thus described, but intend to cover all forms and arrangements of parts which fall within the terms employed in the definitions of my invention constituting the appended claims.

What I claim is:

1. In an apparatus of the character described, a main reservoir, an auxiliary reservoir, said main reservoir having an inlet port, a device controlling said port, means associated with said reservoir for causing liquid in the auxiliary reservoir to be transferred automatically and progressively into the main reservoir when liquid is poured into the main reservoir, and means governed by the level of the liquid in the auxiliary reservoir for controlling said device.

2. In an apparatus of the character described, a main reservoir, an auxiliary reservoir, means associated with said reservoirs for automatically and progressively transferring liquid from the auxiliary reservoir to the main reservoir as liquid is poured into the main reservoir and means associated with said auxiliary reservoir for indicating the condition of the liquid in the auxiliary reservoir.

3. In an apparatus of the character described, a main reservoir, an auxiliary reservoir, there being an inlet port in the main reservoir and a discharge outlet from the auxiliary reservoir to the main reservoir, a device for closing said port, and means governed by the liquid level in the auxihary reservoir for controlling said device.

4:. In an apparatus of the character described, a main reservoir, an auxiliary reservoir, there being an inlet port in the main reservoir, means associated with said reservoirs for causing liquid to be transferred automatically and progressively from the auxiliary reservoir to the main reservoir during the filling of the main reservoir, said means being so proportioned and arranged that the transfer of liquid will take place only when the volume of the liquid in the auxiliary reservoir bears a predetermined relation to the empty space in the main reservoir, and means associated with the auxiliary reservoir for indicating whether or not said predetermined relation exists.

5. In an apparatus of the character del i l scribed, a main reservoir, an auxiliary reservoir, there being an inlet port in the main reservoir, means associated with said reservoirs for causing liquid to be transferred automatically and progressively from the auxiliary reservoir to the main reservoir during the filling of the main reservoir, said means being so )roportioned and arranged that the trans er of liquid will take place only when the volume of the liquid in the auxiliary reservoir bears a predetermined relation to the empty space in the main reservoir, and means associated with said auxiliary reservoir for maintaining said port closed at times when said predetermined relation does not exist between the volume of the liquid in the auxiliary reservoir and the empty space in the main reservoir.

6. In an apparatus of the character described, a main reservoir, an auxiliary reservoir, said auxiliary reservoir comprising two compartments communicating with each other at their lower ends, the first of said compartments being closed at the top and the second of said compartments communicating at its upper end with the main reservoir, said main reservoir having an inlet port, means associated with said reservoirs for producing a gradually increasing downward pressure upon the surface of liquid contained in the said first compartment during the filling of the main reservoir, a float in said second'compartment, and means associated with said float for maintaining said port closed when the liquid level in said second compartment falls below a predetermined point.

In testimony whereof, I sign this specification in the presence of two witnesses.

FREDERICK PURDY.

Witnesses:

WM. F. FRENDENREIOH, BRIOEUS SWEET.

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