US1903522A - Apparatus for producing a stream of atomized liquid - Google Patents

Description

April 11,- 1%33. w. c. UHRLYJR 1,903,522

APPARATUS `FOR PRODUGING A STREAM OF ATOMIZED LIQUID Filed May 2, 1928 2 sheets-sheet 1 April 11, 1933. w, c, UHRI, JR 1,903,522 tV APPARTUS FOR PRODUGING A :STREAM OF ATOMIZED. LIQUID Filed May 2, 1928 2 sheets-sheet 2 Z'N VENTQR Patented Apr. 11, V1933 UNITED NsTATEs PATENT oi-FlcE WILLIAI C. UHBI, JB., OF ST. LOUIS, KISSOUB'I, .ASSIGNOR, BY HESNE ASSIGNMENTS, TO

CENTRAL ENGINEERING ik SALES TION OI' MISSOURI OOIPANY, F ST. LOUIS, MISSOURI, -A CORPORA- .APPARATUS FOB PBODUCING A STREAM OF ATOHIZED LIQUID application ined muy 2, 192s'. sml no. 214,548.

My invention relates to the art of Washing vvide a dischar nozzle of the ty through a nozzle and m invention consists in a novel nozzle adapte to be used for such puiose. y y nozzle has been designed particularly for use in the washing, drying, and vacuuml cleaning of motors, the exteriors and interiors of motor vehicles, machinery and other objects of various descriptions in which diiculties are encountered., due to accumulations of dirt, mud, oil, and grease; also for the purpose of removing substances capable of being dissolved in iuids.- However, I believe that my nozzle is adapted for a much wider field of use than that outlined above and I contemplate its application to various uses.

It has beencustomary heretofore to a ply water under pressure and eiorts have en made to increase the pressure on the water by the use of compressed air supplied to the Water discharge .device in such a way as to render the water stream more effective.

One object of my invention is to provide av discharge nozzle which will operate more effectively than similar devices previously used and .will so operate lwith a source of water supply under pressures such as are normally present in city water mains, i. e., about 50 pounds per square inch, and with a supply of air under pressure such as may be readily provided by suitable air compressors. I attain this object by combining, in my nozzle, a substantial quantity of, atmospheric air with v the air and water under super-atmospheric pressure. This materially increases the degree of atomization of the water and the rate of its flow or discharge fromy the nozzle irrespective of its pressure.

Another object of my invention is to proreferred to which can a so be used for drying the surfaces washed, which can be used for creatin a lpartial vacuum such as may be adapted for cleaning purposes, andwhich may be used for mixing with the water-stream ia quantity of other fluid such, for instance, as oil, for spraying a washed surface, or chemical for cleaning or other purposes, without previouslyrmixing the same with the water supply. his latter feature is highly desirable when my device is used for washing locomotives, rai road equipment rand other objects in which it is required that oil be applied to the washed surfaces during or after the proces. of washing.

In the accompanying drawings which illustrate'fa, selected embodiment of my inveltiot dm l igure 1 isv al-vertical ong!` 'tu a section through my nozzle. l

Figure v2 va vertical transverse section taken on the line 2-'2 of Figure 1.

-F' re' 3 is a front end elevation' of my noz e.

'Figure 4 is a side elevation of a detail of the valve structure used in my nozzle.

Fi re 5 is a bottom view of a detail of my nozz e used in drying or vacuum cleaning operations.

Figure 6 is takenon the line 6 6 of Figure 1.

Figure 7 is a. detail section of a front end of the dischar nozzle.

My device includes a receptacle 1 for air under :pressures above atmospheric pressures,

a passage 2 for air under atmospheric pressure (or for other fluids, as will be pointed out hereafter), a chamber 3 for the reception of water, and a discharge portion4 which is connected to another nozzle section 5 which should be of the desiredlength and shape best adapted for the work at hand. A referred form of discharge nozzle is i ustrated in my Patent No. 1,751,719, Aiued March 25, 1930.

. Admission of air to receptacle 1 and of water to chamber 3 is controlled by valve'y structures, one of which will be described in detail as comprising'a cylindrical sleeve 6 having an annular seat 7 projecting into the somewhat lar r housing 8. -A cup-like member 9` is slida le in cylindrical sleeve 6 and carries a disk 10 on its outer end ada ted to contact withthe-'annular' seat 7 tolse the sleeve 8. vThe side wall of cup 9 is perforated adjacent to its bottom and the seat 10 and, when the cup is moved to the left of the position shown, it will Aadmit fluid through ioo the perforations into the interiorof sleeve 6. A suitable spring 11 yieldingly thrusts sleeve 9 to the right and disk 10 against 'its seat.4

A valve crank member having journals 12 and 13, and an eccentrically disposed in 14, is rotatably mounted in chambe 3 wlth Iits journal or stem 13 extending t rough the wall of the chamber and mounting a suitable operating handle 15.

I illustrate apacking gland,` in which a` detachable section 16 of the chamber wall is provided with an opening in which the valve stem 13 is freely rotatableand .slidable The inner face of section 16 is provided with an annular ridge 16a surrounding the opening for the valve stem and the outwardly directed face of the, disk 15a formed on the valve stem is provided with.a corresponding annular ridge 15b. These ridges form opposing-elements having restricted areas. A compressible element C, consisting of any suitable packing material, is placed between ridges 16a and 15b and a spring S yieldingly thrusts the valve stem outwardly of the chamber whereby the opening for the valve stem is sealed tight at all times. When fluid under pressure is present in the chamber, the same will tightly press the disk 15a against the packing material A, irrespective of spring S. Due to the restricted engagement of the compressible material and the fact that the same is not forced against the stem, friction is reduced to a minimum and the valve handle may be freely rotated under all conditions. When it is desirable to repack thegland, section 16 may be removed and another washerlike' element C substituted for the used one. -A connecting link 17 is pivoted on the cross pin 18 on Vmember 9 and engages theV pin 14 on the crank member. Rotation of handle'V 15 in an anti-clockwise direction from the position shown in Figure 1 will move link in either direction.

Y17, cup 9, Aand disk 10 to the left, opening .the valve and permitting the access of water to chamber 3. The valve will be opened to the greatest extent when pin 14 is'in its extreme left hand position where it will be in the same horizontal plane as journals 12 and 13, and hence will gremain open until the valve handle is -rotated. A pin 19, mounted on the crank, is adapted to-engage the edge lofglink' 17 to limit the rotation of the crank Air admitted to receptacle 1 passes 'therefrom through the nozzle 20. A passage 2'forl atmospheric air surrounds nozzle 20 and terminates in a nozzle 21 projecting forwardly Vfrom nozzle 20 and preferably -terminating Asin a flaring section 22 of" slightly larger diameter than the nozzle 20 which section, in turn, is surrounded by chamber 3.terminat ing in thenozzle 4 which is of slightly largerv diameter than nozzle 22. Atmosphericv air may beadmitted topassage 2 .throu h a valve comprising member 23 and a rotata le sleeve 24, each having perforations 32'whicl1 may be aligned or dlsaligned to open or close the valve, respectively. Member 23 is also rovided with aconnection 25 to a tube 26 w ich may lead from a supply of oil, soap, polish,

or other material which itmay-be desired to dischar e with the washing stream or inter-v mittent y independently of` the washing stream. A needle valve 27 adjusts or cuts oil the supply of fluid through tube 26. A`

C heck'valve 40 closes the entrance to chamber 2 whenever any back pressure in the latter exceeds atmospheric pressure.

Chamber 3 is provided with a downwardly disposed opening 28 which isiitted with `a valve cage 29 having a valve disk 30 slidably mounted therein and adapted to seat at 31. When the valve 9, opening into chamber 3, is closed and air is passed through receptacle 1 and nozzles 20, 22 and 4, a partial vvacuum will be created in chamber 3, in acthe valve disk 30 will be returned to its seat and this opening in the chamber closed. By removing Valve cage 29 and substituting a connection and tube, the vacuum created in chamber 3 may be used for vacuum cleaning.

The admission of air vunder pressure to4 receptacle 1 and its passagethrough nozzles 20, 22, and 4, will likewise .draw atmospheric air fin through perforations 32 and the free' supply of atmospheric air to the air` stream passing from nozzle 20 through nozzle 22 efore the air stream is mixed with the water provides a greater volumeof air and `increases the atomization and velocity with which water andair is discharged from nozzle 4. Similarly, whenvalve 9 is closed, and the device is used to create a vacuum through opening 28, the admission of atmospheric air through assage 2 substantially increases the degree oi) chamber 3. For eXample/With passagen 2 closed to the atmosphere, and air under pressure ofA eighty-five pounds per squareinch admitted to receptacle 1, I can producefa vacuum ofeight inches of mercury in cham-` ber 3 (it will be understood that Yalve v9 is closed). With passage 2 open to the atmos-` phere and other conditions the same, I can produce a' vacuum of fourteen lnches 1'n chamber 3.

vacuum which may be created inv I utilize the upstanding-portion of the device forming the wall of` passage '2 for mounting the handle 33 which isafiixed to the vertical web 34 by a bolt 35. The-memberl hard objects, I surround the outer end of thev same with a heavy washer-like-bufer 36 which is retained in place by suitable metal washers 37 and anut 38 screwed on the end of the nozzle'so as to thrust the washers vtoward a collar 39 on the nozzle.

This feature alsoserves to protect finished surfaces, on objects being washed, from bein injured by blows Afrom the end of the ischarge nozzle.

Obviously, the details of'my invention may 4be modified without departing 'from' the spirit .thereof and I contemplate the exclusive use of such variations asl come within the scopey of my claims.

Iclaim: 1. In a tool of the class described, a receptacle having a port for air under pressure, a discharge nozzle leading therefrom, a

passage surrounding said nozzle 'having la port open to atmospheric air and an inlet for another fluidfa discharge nozzle leading.

from saidpassage and aXiall e aline'd With and slightl spaced from said rstmentioned nozzle, a c amber having an inlet for water and a port open to atmospheric air, said water inlet h avinga manual valve therein -and said third mentioned air port having a check valve therein adapted to be actuated either by at# mospheric pressure or the pressure within said chamber, according to which pressure is greater, and a discharge nozzle leadin from said chamber and alined with but s ightly spaced from said second mentioned nozzle.

- 2. In a tool of the class described, a receptacle for air under pressure, a nozzleleadingop-l therefrom, a passage having separatel erable elements for alternately- `admitting atmospheric air and vanother fluid, a'nozzle leading from said assa and surrounding said first mentioneiin'ozz e and receiving the discharge from the latter, a chamber having an inlet for 'water and a port open to atmospheric air, and a nozzle leading from said chamber and surrounding said second men-v tioned nozzle.

signature this 30 day-of nozzle, an upright portion in communication with said lower part, and a. horizontal portion spaced from said lower part, an inlet open to atmospheric air and aninlet for another fluid in said portion, manual valves' in said inlets, a check valve between said Vertical and horizontal portions arranged to open when the pressure in said horizontal portion exceeds the pressure in said vertical l portion, and a discharge nozzle leading from said passage and surrounding said first mentioned nozzle. f

' 5. In a tool of the class described, a receptacle having an inlet vfor air under pressure,

a discharge nozzle leading therefrom, a pas-- sage including a lower part surrounding said nozzle and an upper part,a port open to' the atmosphere and a fluid connection in said u per part, manual Valves in said port and saidl connection, a check valve between said upper andlower parts and arranged'to close communication therebetween when the pressure in said lower part exceeds the pressure in said upper part, a discharge nozzle leading from said lower part and axially alined with said first mentioned nozzle, a chamber having an inlet for waterl and an inlet open to the atmosphere, a manual valve in said water inlet, a check valve in said air inlet arranged to! open when atmospheric pressure exceeds the pressure' Within said chamber, and a dlscharge nozzle leading from said chamber and alined with said second mentioned nozzle.

In testimony whereof I hereunto aflix my April, 192s. wM. e. UHRI, JR.

3. In a tool of the class described, a recep'- tacle for air under pressure, a nozzleleading therefrom, a passage vhavin separately operable elements for alternate y admitting atmospheric air and another Huid, a nozzle leading from said said first mentione n ozz e and receiving the discharge from the latter, a chamber having assa e and surrounding'4

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