US2271151A - Gasoline nozzle - Google Patents

Description

' Jan. 27, 1942. V. FINA. ET AL GASOLINE NOZZLE F iledApril 18,

Patented Jan. 27, 1942 UNITED STATES PATENT. OFFICE" GASOLINE NOZZLE Valentine Fina and William F. Hoelz er, Mil

waukee, Wis., asaignors to Milwaukee Valve Company, Milwaukee. Wis.. a corporation of Wisconsin Application April 18, 1940, Serial No; 330,256

' s (or. 251-13 1) Gasoline is relatively expensive, and leakage also involves fire hazards, to say nothing of atmospheric. pollution by the fumes. We find that while manually operable valves for regulating delivery of gasoline through outlet ducts or nozzles should be of that type in which the valves close with the pressure of the fluid, aided by spring pressure to ensure positive and uniform sea-ting, yet these valves should not be allowed to snap shut but should be opened and'closed in a graduated movement-whereby the durability and assembly.

Another object is to provide an improved lever system for manual operation.

Other objects and advantages of the invention will become apparent during description of the 'art and followingan examination of the following specification, drawing, and claims attached thereto.

In the drawing. Fig. 1 is a figure of elevation of a hose nozzle and control mechanism having my invention incorporated therein.

Fig. 2 is a sectional view of elevation of the nqzzle'disclosed in Fig. 1.

Fig. 3 is a fragmentary section view of an alternate embodiment valve actuating mecha Like parts are identified by the same reference characters throughout the several views. I The invention is particularly adapted for inhose coupling dispensing gasoline. This type of nozzle as shown in Fig. 1 includesgenerally a hollow casing l which may have an end portion arcuately curved. Casing I0 is provided with threaded end portions to receive respectively a special l2 and outlet conduit |-3. A bracket or guard I4 is carried by the casing to provide support andprotection for a handle I5 which has, one end portion fulcrumed thereto.

A relatively short lever |6 also'has an end portion fulcrumed to. the bracket in a position whereby a roller carried by handle l5 follows a curved cam portion of lever l6 to provide compound lever movement whereby lever I6 is fulcrumed through an are offset about 90 from the are through which handle l5 moves in the course of its'pivotal movement.

The valve control mechanism includes lever 2| which is pivoted to the valve casing l0 for transmission of motion from lever l6 to a valve which is hereinafter described.

Casing I0 is divided interiorly by a valve seat partition 22 into an inlet chamber 23 and an outlet chamber 24. A plug valve 26 is disposed within chamber 23 for normal seating engagement with seat 22. Valve 26 is biased toward seat 22 by compression spring 21 which has one end encircling gasket retaining nut 9n valve 26 and the opposite end encircling boss of spider 25 attached to the threaded end portion of hose coupling l2. Valve stem 3| is slidably supported within the chamber 24 by a centrally disposed bearing 3|! which may be integral with the chamber wall. Stem 3| has its free end disposed for contact by the inner end of the lever 2 I.

Lever 2| is mounted in sealed engagement with the walls of chamber 24 in the following manner to provide free pivotal movement of said lever about its fulcrum. An auxiliary chamber 35 is provided below chamber 24 to communicate therewith through aperture 36. The upper end of lever 2| projects through aperture 36. Chamber 35 is defined by the walls of an annularclosure 31 which has its upper portion inscrewthread relation with a depending annularly flanged portion of the casing wall. A pair of brackets 38 have their upper termini secured to the casing wall within said annularly flanged portion of the wall and beside the aperture 36.

Brackets depend into chamber as, lever 2| beingfulcrumed betweenthe brackets by means of a pintle bolt 34. Lever 2|, as best shown in Fig. 3, comprises an upper portion 40 which may have relatively corporation in the type of hose nozzle used in flat sides and tapered ends, as shown, a lower cylindrical portion which isthr'eadcd at 4|, and

an intermediate flange 42 which is rounded con-.

displacement of the valve and its actuating spring by careless operation oi the lever l5.

Annulus 31 has its lower We claim:

1. In a hose nozzle for.gasoline and similar fluids, the combination with a hollow casing laterally apertured and provided with inlet and outlet passages and an internally disposed valve seating with the fluid pressure and adapted for controlling fluid communication between said passages, of a lever provided with fulcrum means at a point outside the casing on the delivery side ment 45 is apertured to receive the threaded section 4| of lever 2|. Lower portions of element 45 marginally of said aperture are clamped in sealing relation with the convex surface 0! flange 42 by means of a complementary dished washer 46 which is likewise apertured to receive the threaded portion 4|, and is held by a-nut 41 01 complementary form threaded to the lever 2|. Washer 46 is adapted to substantially flll the bottom wall aperture of annulus 31 to prevent dirt from accumulating within chamber 35. h

Packing 45 is (for gasoline nozzle usage) preferably made of a gasoline-proofrubber substitute of which there are several types now on the market. Other materials may be 'used provided they possess the ability to withstand distortion and are not subject to attack by the liquid which is dispensed'through the device.

An alternate embodiment of the fluid sealing means above described is disclosed in Fig. 3. In

of the valve and having a portion projecting through said aperture for actuation of said valve, a cup-shapedflexible jacket composed of material impervious to gasoline and having an apertured bottom wall clamped to the operating end or the lever, said jacket enclosing the fulcmm means, with its inner margin expanded and fitted to the wall of the casing about'the casing aperture, and a cup-shaped housing also having an aperture in its bottom through which the operating end of the lever extends and having its inner margin in clamping relation to the expandedmargin of the jacket, one 0! the jacket clamping members on the lever being adapted to serve as a slide closing the housing aperture in this embodiment the rubber, or rubber-likepacking is replaced by a, bellows type metallic element 450, likewise cup-shaped, and preferably of copper. Element 450 is installed in a manner identical with that above described. The beluse oi a metal or other material which is not possessed of a resiliency factor great enough to enable its use in the form shown at 45.

In either case, the cup-shaped form oi the packing, and the specific mounting of the lever 2| make possible ready access to "the fulcrum pin 34 in the assembly or repair of the device. moval of annulus 31 and downward iolding or removal of the packing cupleaves'the pintle 34 fully exposed. But for this structure the mounting of a lever in the wall of a nozzle would involve serious assembly and packing problems.

\ Operation of the device is as follows:

During use, an operators linge sv encircle hanlows construction of element 450 permits the dle l5, Fig. 2, in a position to actuate the handle toward casing 10 as shown in Fig. 1'. During this operation roller I'l rides up the complementary arcuate portion of lever Hi to oscillate that lever in a counter-clockwise direction as viewed in.

Fig. 2. An opposite side portion is of lever l6 contacts the lower portion 01 lever 2| to oscillate said lever about pintle 24. Upper portion 40 of lever 2| displaces stem 3| axially to move valve plunger 26 against spring 21 thereby opening the valve to allow fluid passage through the deall positions of lever adjustment.

2. A valved nozzle for gasoline and similar volatile fluids, having in combination'with the nozzle anintemal valve seating in the direction of fluid delivery andprovided with an actuating spring normally urging the valve toward its seat, said nozzle having a lateral aperture in its wall at the outlet side of the valve flanked by fulcrum supporting outwardly projecting arms, a lever iulcrumed to said arms, with its working end extending through said aperture in a position to open the valve against the combined pressure of the fluid of said actuating spring, a sleeve-like cup-shaped flexible seal impervious to gasoline and arranged with one end clamped to the nozzle about its lever receiving aperture, and with the other-end clamped to the lever on the opposite side of its fulcrum, a manually operable lever operating means, and an interposed oscillatory cam for transmitting graduated motion from the operating means to said lever.

3. A manually operable valve mechanism for gasoline and similar fluids, comprising the combination with a casing having inlet and outlet cavities normally separated by a valve inthe inlet cavity seating in the direction of the outlet, the wall of the outlet cavity having an opening for a valve actuating lever, an exteriorly iulcrumedvalve operating lever having a working arm extending through said aperture in operative relation .to the valve, flexible sealing means for preventing leakage through said aperture, a separate manually operable lever, a guard carried by the casing and to which said manually operable lever is fulcrumed, and a movable member also carried by said guardin a position to be actuated by the manually operable lever during a portion of its stroke and adapted to transmit relatively slow motion to the valve actuating lever, whereby to prevent hammering and jerky movements of the valve.

4. A nozzle for controlling-deliveries of gasoline and similar fluids,-comprising the'combination with a hollow casing provided with inlet and outlet passages'separated by a ported valve. seat, a spring actuated valve in theinlet passage movable to and from said seat, a lever having an actuating arm in the putlet passage in operative relation to the valve, an independently pivoted manually operable lever, and cam means unattached-to either lever and interposed in a position to control and graduate the movement of an exterior fulcrum, a cup-shaped housing enclosing the fulcrumed portion of the lever and having threaded engagement with the casin hold the outer end of the seal in pressure engagement with the flange; said adjustable clamping means comprising a movable part of the housing wall adapted to keep the sealing member enclosed invarious positions of lever adjustment.

6. In a hose nozzle for gasoline and similar fluids, the combination of a tubular casing provided with a spring actuated check valve and laterally apertured on the outlet. side of said valve to receive a valve actuating lever having the bottom of the cup-shaped housing having an aperture through which the operating arm of the lever extends, a flange on said operating arm substantially in registry with the aperture of the housing and provided with a convex outer surface, a bowl-shaped slide having a concave surface corresponding to the convex surface of said flange and adapted for reciprocation in aperture closing relation to said housing when the lever is actuated, a cup-shaped rubber seal marginally clamped between the housing and the casing and having an apertured bottom por-- tion engaged between the convex surface of said flange and the concave surface of the slide, and a clamping nut threaded to the operating end of the lever to hold theslide and seal in clamping relation to said convex flange surface, whereby the bottom of the sealing cup and said slide may oscillate within the housing and below the lever fulcrum during operation'of the lever.

VALENTINE FINA. WILLIAM F. HOELZER.

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