US1773018A - Suction and dispensing nozzle - Google Patents

Description

Aug. 12,1930. F. E. WHITEHOUSE SUCTIONYAND DISPENSING NOZZLE Filed Nov. 26, 1928 Frank E- W ATTORNEYS.

Patented Aug. 12, 1930 FRANK E. wnrrnnousn, or POMONA, CALIFORNIA SUCTION DISPENSING NOZZLE Application filedNovember 2c, 1928. serial No. 322,003.

This invention relates to improvements in dispensing and suction nozzles.

e The primary object of this invention is the provision of an improved valved nozzle adapted to be used for replenishing or exhaustingthe supply of oil with respect to heating pots or the'like; the device being used with apparatus for heating orchards and the like, to prevent frost damaging the fruit. It is a considerable problem to replenish and remove theoil from the burner pots arranged within an orchard, and in this connection the improved valve type of nozzle has been particularly arranged so that it will supply oil to the pots or exhaust the same therefrom, as desired, in an eflicient and expeditious manner, without permitting any of the oil to drip and interfere with the fertility of the soil.

A further object ofthis invention is the provision of a portable dispensing and suction nozzle adapted to be used upon flexible hose in connection with pumping equipment that may be selectively operated to force or draw oil thru the nozzle for the purpose of replenishing or exhausing the oil from heating pots or other appartus.

Other objects and advantages of this invention will'be apparent during the course of the following detailed description.

In the accompanying drawings, forming a part of this specification, and wherein similar reference characters designate corresponding parts throughout the several views.

Figure l is a perspective view of the improved device.

Figure 2 is a cross sectional view taken through the improved dispensing and suction nozzle; V V

Figure 3 is a side elevation of the improved device.

Figures-4', 5 and 6 are views taken substantially on the respective lines of Figures 3, 7 showing the cooperative parts "of the improved device. V

In the drawing, wherein forthepurpose of illustration is shown only a preferred embodiment of the invention, the letter A may generally designate the improved portable oildispensing and suction'nozzle which comprises a tubular supporting body B, having a head or cap C thereon provided with a hose connecting stem or tube D. Valve means E is provided in a detachable relation in the lower part of the tubular body B. Astrainer or screening cap F is provided at the outer end of the tube 13. Operating means G is provided in a cooperative relation'wit-h the head C and stem D for operating the valve to permit dispensing or suction of oil thru the nozzle or device. H g V I The improved dispensing and suction nozzle is associated with apparatus that supplies oil or withdraws it from burner pots that are set at intervals throughout an orchard. Such apparatus is used in climates such as found in California and Florida, to dissipate the harmful effects of frost during certain seasons of the year. The burner pots have to be frequentlyreplenished with oil, and at the end of the cold season the burner pots have to be emptied. The improved nozzle is used upon flexible hose for directly dispensin the oil into the burner pots or withdrawlng it therefrom the force necessary to dispense it or the suction necessary to'withdraw the oil being supplied by an improved pumping rig such as manufactured by The Ranchers Manufacturing Company, of P0- mona, California.

The tubular body B is preferably cylindrical in construction, and of thin gauge metal, either brass or of other material. It is of uniformdiameter from end to end, and at its upper and lower ends is respectively provided with internally screwthreaded openings 10 and 11.

j The cap C and the hose nozzle connecting stem D are preferably of bronze, orfother material. The cap C is of tapered formation, comprising a body portion 15, having an upwardly tapering top 16 which converges to the top surface 17 thereof. 'At its lower end an externally screw threaded shank 20 is provided for detachable connection in; the threadedsocket 10 at the end of the tube B. Extending at approximately an angle of 45 with respect to the axis of the cap C is the hose receiving coupling shank or stem D, which is provided with a passageway 22 therethrough, extending into the taper 28 of the cap C. Externally, the stem D is provided with corrugations or annular enlargements 24 to more readily enable its proper grip and retention within the flexible hose in which it is to be inserted. Of course, when the cap C and its coupling D are assembled upon the body B, the stem D is arranged at an angle, preferably 45, with respect to the axis of the tubular body B. This enables flexible fluid conveying hose to be efficientlyconnected; doing away with one of the hose couplings ordinarily provided for this purpose, and doing away with bending of the hose during operation, so that the hose will not. deteriorate as. fast as under ordinary circumstances. Of course, the cap portion. C and the stern D are integral or welded together rigid, as shown inthe drawings.

The valve E preferably comprises adctachable seat 25., upon which the valve disc 26 is adapted to seat. The seat piece comprises a cylindrical shaped body portion 27 externally screw threaded for detachable connection in the screw threaded end '11 of the tube B. At its lower end the sleeve 27 has the crosspiece 30, more particularly shown in Figure 5 of the drawing, provided with a central opening therethrough to slidably receive the. lower stem portion 81 extending axially from the valve disc 26. The upper annular margin of the seat body 27 is provided with a beveled seating surface 33 which tapers in a convergent relation downwardly at an acute angle to the axis of the tube B; The valve disc 26 is beveled on theannular periphery thereof, for snug seating on the seating surface 33, as shown in Figure 2 of the drawing.

The valve disc. 26 has the depending stem 31. Whichextends through the opening in the cross piece 30,. and its lower endis threaded for. receiving a nut 35; a. spiral spring 36 e11- gaging the nut 35 and a washer below the cross piece 30, or even the cross piece 30. if desired, to resiliently urge the valve disc 26 upon its seat 25 in a closed relation.

The valve means E. furthermore comprises the valve rod 38, connected centrally with the valve disc 26 and extending axially upward through the tube B, and slidably extending thru a stuffing box 4O provided detachably on. the top. wall of the cap C; the stufling box having the stem or rod 38 slidably extended therethrough, and the stem 38'at. its upper end being reduced andscrew threaded for detachably receiving. a pair of lock.v nuts 41.

The operating means G preferably con- Sistsof. bell crank levers 40 and 41, pivoted intermediate their ends on screws or. detaclr able elements 421at opposite sides of. the nozzle cou ling stem D adjacent the head C; said biel crank levers 40 and. 41 being com nected for synchronous operation by'a. finger engaging cross bar 45. The levers 40 and 41 are of substantially J-shape formation, and the cross bar 45 is above the stem D so that the operator grasping the hose adjacent the coupling stem D may with facility press downward on the cross bar 45 and swing the bell crank levers on their pivot axes, moving the lower lever arms 46 upwardly.

The nuts 41 clamp an inverted U-shaped connecting piece 50 upon the rod 38, above the stufiing box 40*; The inverted U-shaped connecting piece 50 comprises a cross piece 52, apertured to receive the rod 38 therethrough between its ends, and the depending arms 53' and 54, which are respectively pivoted at 5.5 and 56 to. the free ends of the bell crank lever arms 46.

The spring 3.6 of. the valve mechanism ordinarily moves the valve disc 26 upon its seat, and holdsthe nuts 41. against the cross 7 piece 52 of. the connection 50, swinging the )ell crank levers 40v and 41, or thebell crank handle whichit may be.called,,to the position shown in Figure 2. v The screeningcap F is preferablyshallow, comprising a body 60, having a reduced ex.- ternally screw threadedshank 61 for detachablyfitting into the lower screw threaded socket 11 of the tube B, and at its juncture with the body 60. having a shoulder. against which the lower edge of the tube. 13 abut-s,v as shown in Figures 2 and. 3 of the drawing. The body isprovided with radial screening arms 63 at the lower end thereof, as shown in Figure 6 of the drawing, between which substantially V-shaped openings 64 are provided for passage of the oil into or out of the tubular. body B.

t should be noted that the valve member 26 is very close to the lower end. of; the inrproved dispensing and suction device A, so that very little opportunity remains for oil to drip after the valve is closed, and this: is one of the important advantages; of the im proved portable valve or nozzle device, inasmuch. as thereby the filling or exhausting of the oil with respect to the heating pots may be readily accomplished with little liability of spilling of the oil upon the ground and destroying the fertility thereof.

The operation of the improveddevice will be apparent from the above description It the lire pots are'heing replenished, the hosewhich is coupled to the stem D is of course connected to the pressure-discharge endof a force pump, thru which the oil is sentinto the compartment of the barrel of body B.

The-operator inserts the screenedv end of the by the spring 36 to shut ofi further flow of oil. There is practically no drip and no delay in going from pot to pot.

If the fire pots are to be exhausted of the oil therein, for cleaning, or at the end of the cold season, the hose to which the nozzle stem D is connected, is attached to the suction end of a pump, and while the operator may lift the valve 26 by the handle means G, to start the operation, the suction through the barrel B will cause an opening of the valve 26 against depression of the spring 36, and permit the oil to enter the barrel B and the place to which it is pumped, for exhausting the fire pot.

At times it Will become necessary to grind the valve onto its seat. This may be readily accomplished by lifting the valve from its seat, inserting some graphite or the like and replacing the valve; the same being readily turned thru the nuts 41 at the cap C. All of the valve parts are readily removable at the lower end of the barrel B, for cleaning and other purposes.

Various changes in the shape, size, and arrangement of parts may be made to the form of invention herein shown and described, without departing from the spirit of the invention or the scope of the claims.

I claim:

1. In a dispensing and suction nozzle of the class described an elongated barrel body, a detachable screen cap at one end of the body, valve means detachably positioned in the barrel body adjacent said screen cap, means for operating said valve, and means at the opposite end of the barrel body for connecting a supply tube thereto.

2. In a dispensing and suction nozzle of the class described an elongated barrel body, a detachable screen cap at one end of the body, valve means detachably positioned in the barrel body adjacent said screen cap, means at the opposite end of the barrel body for connecting a supply tube thereto, and means adjacent the last mentioned means for operating said valve.

3. In a dispensing and suction nozzle of the class described an elongated barrel body, a detachable screen cap at one end of the body, valve means detachably positioned in the barrel body adjacent said screen cap, means at the opposite end of the barrel body for connecting a supply tube thereto, means adjacent the last mentioned means for operating said valve, and spring means normally urging the valve to a closed position.

4:. In a dispensing and suction device of the class described the combination of an elongated tubular body, having a screw threaded open end, a screen cap for detachable connection in said screw threaded open end, a valve disc, a valve seat detachably connected in the screw threaded open end, spring means urging the valve disc onto said seat, and means for opening said valve from its seat against l action of said spring.

5. In a dispensing and suction nozzle of the class described an elongated portable tubular body, a valve at one end of the body for admitting or permitting exit of fluid with respect to the body, spring means operating on the valve to normally seat the same in a closed position, to prevent exit of fluid from the tube, an angularly disposed connecting stem of tubular formation at the end of the body remote from said valve, a rod connected with the valve and extending through the tubular body to adjacent said stem, an extension on the rod externally of the stem, and an operating lever pivoted on the stem for pivotal connection with the said extension to operate the rod and open or close said valve.

FRANK E. WHITEHOUSE.

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