US2595407A

US2595407A - Liquid measuring nozzle

Info

Publication number: US2595407A
Application number: US118062A
Authority: US
Inventors: Howard C Purrier
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-09-27
Filing date: 1949-09-27
Publication date: 1952-05-06
Anticipated expiration: 1969-05-06

Description

May 6, 1952 H. c. PURRIER LIQUID MEASURING NOZZLE Filed Sept. 27, 1949 INVENTOR. Pa e/5e,

HOW/4 E0 C.

%m/dw7zmz v Eamon ATTORNEYS,

Patented May 6, 1952 UNITED STATES PATENT OFFICE 2,595,407 LIQUID MEASURING NOZZLE Howard C. Purrier, Bristol, Conn. Application September 27, 1949, Serial No. 118,062

2 Claims.

This invention relates to liquid dispensing nozzles, such as are used to direct liquid fuel into storage tanks, and more particularly to a dispensing nozzle having liquid measuring and indicating means therein.

It is among the objects of the invention to provide an improved liquid-dispensing nozzle attachable to one end of an elongated, flexible conduit, the other end of which is connected to liquid-supply means, such as a pump carried on a fuel oil truck, which nozzle includes a manually-operated valve for controlling the flow of liquid therefrom and liquid-measuring and indicating means for indicating the quantity of liquid dispensed from the nozzle at any particular time, which measuring and indicating means is built into the nozzle structure so that it is fully protected against damage, is accurately responsive to the flow of liquid through the nozzle, so that the quantity dispensed can be quickly determined from the location of the nozzle, and does not interfere with the normal operation of the nozzle or nozzle valve, and which nozzle is simple and durable in construction, economical to manufacture, and easy to use.

Other objects and advantages will become ap parent from a consideration of the following description and the appended claims in conjunction with the accompanying drawing, wherein:

Figure 1 is a longitudinal, medial cross-section of a dispensing and measuring nozzle, illustrative of the invention;

Figure 2 is a longitudinal cross-section on the line 2-2 of Figure 1; and

Figure 3 is a rear elevation of a fragmentary portion of the nozzle construction.

With continued reference to the drawing, the improved nozzle comprises an elongated nozzle body, generally indicated at [0, having a liquid passage H extending longitudinally therethrough. At one end the body In is provided with external screw threads l2 upon which is threaded a union nut l3 which engages a fitting or sleeve 14 by means of which the nozzle is connected to the outer or free end of a flexible conduit or hose [5, the opposite end of which is connected to a liquid-supply means, such as the liquid pump carried by a fuel oil tank truck. At its opposite end the body I0 is provided with an angularly-disposed spout l6, which spout is 01?- set downwardly from the remainder of the body. At the juncture of the spout and the remainder of the body, the body is formed to provide a generally cylindrical valve chamber [1, and an annular valve seat I8 is provided at the bottom end of this chamber surrounding the liquid passage as the passage enters the spout l6. A valve piston 19 is mounted in the valve chamber I! to cooperate with the seat I8, and a valve stem 20 extends from the valve piston through a packing gland 2| in the outer wall of the spout IS. A valve-operating lever 22 is pivotally connected at one end to the spout [6 by the pivotal connection 23 and extends from the spout longitudinally of and spaced from the nozzle body. This lever bears intermediate its length upon the outer end of the valve stem 20, so that movement of the lever toward the nozzle body is effective to move the valve piston away from the seat l8 and open the valve. A guard structure 24 of substantially right-angular formation extends from the nozzle l6 adjacent the pivotal connection 23 to the nozzle body [6 adjacent the screw threads [2 and around the lever 22. The leg of this guard remote from the nozzle I6 is disposed substantially perpendicular to the nozzle body, and is provided with an elongated slot 25 in which the rear end of the lever 22 is movable, and with spaced-apart notches 26, 27 and 28 at one side of the slot 25 in which notches the rear end of the lever 22 may be selectively engaged to hold the valve open in difierent positions of adjustment.

The nozzle body is provided with an internally screw-threaded, cylindrical opening at the end of the valve chamber formation opposite the valve seat 18, and a closure cap 29 is threaded into this opening. A compression spring 30 interposed between the closure cap 29 and the valve piston l9 resiliently urges the valve piston to valve-closing position from which the piston is moved against the force of spring 30 by manual operation of the lever 22.

Adjacent the valve chamber I! the liquid passage II is narrowed by a thickening 3| of the body wall at one side of the passage, and a semi-cylindrical chamber 32 is provided in the thickened wall portion 3| at one side of the liquid passage H. This chamber is at the upstream side of the valve chamber l1 and valve seat l8 in relation to the direction of liquid-flow through the nozzle, and a vaned rotor 33 is journaled in this chamber and extends across the liquid passage II.

The nozzle body is provided, at the end of the chamber 32 adjacent the closure cap 29, with a circular opening through which the rotor 33 may be inserted into the chamber 32, and a circular cover plate 34 having a central opening therein is secured to the nozzle body covering 3 this opening 35. A shaft 36 extends from the rotor 33 through a packing gland 31 securedin the aperture of the plate 34, and a spur gear 38 is secured on this shaft at the outer side of the plate 34.

An elongated, rectangular receptacle formation 40 is formed on the nozzle body at the Side of the body opposite the valve seat l8 and spout l6, and includes the cover plate 34. This body is divided, intermediate its length, by a transverse partition 4| provided with an apertured boss 42, and a revolution counter 43 is mounted in this receptacle formation at the side of the transverse partition 4| opposite the cover plate 34. The side of the formation 40 remote from the liquid passage II is open, and a cover 43 is secured to the receptacle formation at the outer side thereof to cover this open side of the formation. This cover 43 includes a transparent portion 44 overlyingthe revolution counter 43, so that the indications on the counter are clearly visible through the cover. The revolution counter 43 is graduated in units of liquid measurements and is calibrated to the rotor 33.

An idlershaft 45 is journaled at its respectively-opposite ends in the cover plate 34 and the cover 43, and a spur gear 46 secured on this idler shaft meshes with the spur gear 38 on the rotor shaft 36. A beveled gear 41 is secured on the shaft 45 and meshes with a complementary beveled gear 48 secured on the revolution counter shaft 49, so that the revolution counter is driven by the rotor 33 when the rotor is rotated by the flow of liquid through the nozzle.

A zeroizing thumb wheel 50 extends from the revolution counter 43 through the rear wall of the .receptacle formation 40, so that the counter can be turned to its zero position before beginning a liquid-dispensing operation through the nozzle. When liquid is then dispensed through the nozzle, the counter 43 will be operated and will accurately indicate the quantity of liquid dispensed, since the counter was zeroized. The flow of liquid through the nozzle is controlled by the manually-operated valve, and when the dispensing operation has terminated, the operator may obtain the quantity dispensed from the counter mounted on the nozzle and will not have to return to the pump or other liquid-supply means for this information.

The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present .embodiment is, therefore, to be considered in .all

respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by'the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are, therefore, intended to be embraced therein.

What is claimed is:

1. A liquid-dispensing nozzle comprising an elongated nozzle body having a liquid passage extending longitudinally therethrough, and a semicylindrical chamber therein at one side of said fluid passage with an opening in the wall thereof at one end of said chamber, a vaned rotor rotatably mounted in said chamber and extending across said liquid passage, a cover closing the opening in said body wall and having an aperture therein, said rotor having a shaft extending through said cover, an elongated receptacle formation extending along said body and being separated from said liquid passage and including said cover, a revolution counter mounted in said receptacle formation and graduated to read in units of liquid measurements, and gear means connecting said rotor shaft to said counter.

2. In a liquid dispensing nozzle, an elongated nozzle body formed with a liquid passage extending longitudinally therein, a nozzle on said body communicating with one end of said passage, said body being formed with a transversely extending semi-cylindrical chamber located intermediate the ends of said passage and at one side of said passage, said chamber having a closed end and an end opening through the side :of said nozzle body, said chamber having an open side exposed within said passage, a cover closing said open end of the chamber, an elongated receptacle extending along the exterior of said nozzle body and enclosing the open end of said chamber and said cover,a revolution counterwithin said receptacle and including a longitudinally extending rotary shaft, a vaned rotor mounted axially within-said semi-cylindrical chamber having a shaft extending across said liquid passage, one end of said rotor shaft being journalled in a side'of said nozzle body with its other end extending through an opening provided in said cover, and gear means operatively connecting said other end of the rotor shaft and the revolution counter shaft.

HOWARD C. PURRIER.

REFERENCES CITED The following references are of record in the Gries Nov. 24,1942