US1539081A - Automatic nozzle - Google Patents

Description

May 26, 1925.

E. G. FRITZ AUTOMATIC NOZZLE Filed Nov 21, 1922 INVENTOR Efves? (if/1'1? By M 0 A TTOR/VEVS W/ TIVESSES line 11, Figure 2;

' Automatic Nozzles,

Patented May 26, 1925.

PATENT oFF ca.

mnsr e. rarrz, or monrrnnn, comoncor.

aurom'no NozzLE.

Application filed November 21, 1922. Serial 110.18%,420.

To all whom it may concern:

Be it known that I, ERNnsr G. Fnrrz, a citizen of the United States, and a resident of Litchfield, in the county of Litohfield and State of Connecticut, have invented new and useful Improvements in of which the following isa full, clear, and exact description.

This invention relates to an automatically controlled nozzle.

In using nozzles for filling containers with liquid, a great amount of liquid is often wasted by overfillin the container particularly when the .wa ls of the container are opaque. This is particularly true with re ard to the filling of automobile tanks. The gasoline thus spilled is completely lost, and not only is this waste obectionable but gasoline lying in pools on the floors of garages. and other similar places is more or less dan erous.

The general object of t is invention is the provision of an automatically controlled nozzle for filling containers having valve means associated therewith for .closing the nozzle, and means co-operating with the valve means and operated, upon the liquid in the container reaching a certain level, to close the valve.-

I This object is accomplished by. providing a nozzle casing, associating therewith a valve which may be operatedto close the nozzle, and providing, in conjunction with the valve, means operated by the rise of liquid in the container. for utilizing means operated b the flow of liquid through the nozzle to c ose the valve.

will be more clearly understood from the following detailed description and accompanying drawings.

Figure 1 is a vertical Figure 2 is a section along the line 2-2 a F1 ure 1; Y

igure 3 is a cross section alongthe line rel. Referrmg to the above-mentioned drawings, a nozzle casing 10 is shown having its upper end provided with an internal thread, 12 afida curved wall 11 for directing the flow of the liquid along one wall of the nozbzle. This nozzle casing includes an up er Section 13 and a lower section 14. A va ve a shaft 18.

section along the 29 15 is hingedly mounted by means of a pin 16 on the lower section 14 and is so located that in its raised position it is protected from the flow of the'liquid by means of: the wall 11. An auxiliary wall 17 is provided in the lower section 14 of the nozzle casing. Revolubly mounted in this wall 17 is On the portion of this shaft located inside ofthe casing a crank 19 is fixed. This. crank is connected to the valve 15 by means of a connecting rod 20 and a U-spring 21 fastened to the lower face of the valve 15. The length of the connecting rod and spring-21 is such that when the to theleft of a vertical position. The spring 21 protects the valve 15 when it is drawn into engagement with the valve seat 24;, and the downward force exerted on the connecting rod 20 is continued. Mounted on the outer end of the shaft .18 is a knurled wheel 22 to which a pin 23, extendin inward, is fixed. Accessto the knurled w eel 22 may be had through an opening 25 cut in the outer wall of the section 14.

A float 26 is slidably mounted in the passage 28 formed by the auxiliary wa11 17, and has attached to its upper end a member on a pin 30 provided for retaining it in the assage 28, the upper end of the, head 29 if projected toward the pin 23 will engage the same. Revolubly/mounted in the wall '17 is a shaft 31, on the inner end This and other objects of the invention of which a turbineWheel 32 is fixed, while on the outer end of the shaft'31 a cam 33 is fixed. The cam 33 is mounted to rotate in the plane of the triangular-shaped head A semicircular collar 34 is attached to the lower section 14 of the casing .10, and piv-- otally connected to this semicircular collar bya-screw 38 is a second semicircular collar 39 with two arms 35 extendingradially outward. A stud 36 is mounted in the semicircular collar 39 and carries aT-member 37 This semicircular collar 39 is provided for .suppbrting thenozzle in containers, the T-' shaped member serving to engage. the edge of thecontainer' and retain the nozzle in .position inan opening in the container.

A branch pipe 44 leads from the main channel of the section 13 and has an internal thread 43 provided therein. A hollow plug 41, provided with an external threadand.

- head of which is shaped to close the opening 45 in the upper section 13 of the nozzle casing. A spring 42 is mounted between the hollow plug 41 and the plunger head to serve as a means for retaining it inposition. This plunger is provided so that the nozzle may be closed when not in use. I

When the plug 41 is screwed into the plpe 44, as shown in Figure 1, the spring 42 is under compression and the plunger forced to seat on the opening 45 and close the nozzle. To open the nozzle, it is only necessary to unscrew the plug, which relieves the spring from compression and the plunger moves away by gravity from said opening. The operation of this device is as follows: The knurled wheel 22 is rotated counterclockwise, as viewed in Figure 1, until the valve 15 is raised to its'normal position. The crank 19 is then slightly to the left of a vertical position, serving to retain the valve in its raised position protected by the wall 11. If now it is desired to fill a container through this nozzle the lower end of the nozzle is projected into the container and held in position by means of the T member 37. The liquid with which the container is to be filled is allowed to pass through the nozzle and it rotates the turbine wheel 32 which in turn rotates the cam 33. As the float 26 is located in the position shown in Figure 2, the rotation of the cam does not disturb the position of the wheel 22. As soon as the level of theliquid in the container rises until it reaches the float 26 the latter is gradually moved upward. When the head 29 carried by the member 27 is projected into the path of the cam 33 it is forced against the pin 23, serving to rotate the shaft 18. The rotation of the shaft 18 clockwise, as viewed in Figure 1, rotates the crank 19 clockwise and draws the valve 15 into the stream of liquid flowing through the nozzle. The stream of liquid flowing through the container projects the valve 15 downward onto its seat 24 thus completing the work started by the float. This shuts ofl the flow of liquid through the nozzle. By the proper locating of the semicircular collar 39 of the casing the flow of liquid may be shut off when the liquid in the container reaches any predetermined level.

I would state in conclusion that while the illustrated example constitutes a practical embodiment of my invention I do not limit myself strictly to the exact details herein illustrated since manifestly the same can be considerably varied without departing from the spirit of the invention as defined in the appended claims.

Claims.

1. In an automatic nozzle, a casing, a valve in the casing for closing the same, valve operating means, a float in the casing and having an upwardly extending member, means operated by the flow of liquid through the casing and adapted to engage the member of the float, and means carried by the valve operating means and with which the member ofthe float is adapted to engage to operate the valve operating means.

2. An automatic nozzle of the class described for directing the flow of liquid into a container, a valve mounted in the nozzle teasing and normally positioned out of the stream line, a rotatable member mounted in the nozzle casing,,a lever arm fixed to the rotatable member, means connecting the lever arm to the valve, a float mounted in the nozzle casing and operated upon the rise of the liquid in the container to a certain level, and means operated by the liquid flowing through the nozzle and coacting with the float for operating the rotatable inember to draw the valve into the stream 3. An automatically controlled valve of the class described for directing the flow of liquid into a container, comprising a nozzle casing, a valve mounted in the nozzle casing and normally positioned out of the stream line, a shaft rotatably mounted in the nozzle casing, means interposed between the shaft and the valve to draw the latter into the stream line upon the rotation of the shaft, a float in conjunction with the nozzle casing and controlled by the rise of the level of the liquid in the container, and means operated by the liquid flowing through the nozzle and coacting with the float to rotate the shaft to close the valve. 4. An automatically controlled nozzle of the class described for directing the flow of liquid into a container, comprising a nozzle casing, a valve normally positioned out of the stream line for closing the nozzle, a shaft rotatably mounted in the nozzle casing and associated with the valve to operate the latter upon rotation, a knob attached to the shaft to rotate the same by hand, a float slidably mounted in the nozzle casing and controlled by the rise of the level of the liquid in the container, said float being provided with an upwardly projecting member and means operated by the flow of liquid through the casing and coacting with the member of the float to operate said shaft to close the valve.

5. In an automatic nozzle, a casing, a valve for closing the casing, a crank shaft, means connecting theshaft with the valve, a wheel for operating the shaft provided with a lateral pin, a float in the casing and provided with a member having a head adapted to engage the pin of the said wheel, and means operated by the flow of liquid through the nozzle to engage the head with the said pin to operate-the shaft and close the valve;

6. In an automatic nozzle, a casing, a bin ed valve for closing the casing, a crank 10 sha a link connecting the shaft with the valve, a wheel for operating the shaft provided with a lateral pin, a float having a member provided with a beveled head ada ted to engage the pin of the wheel, a turbme- ERNEST G. FRITZ.

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