US1850570A - Nozzle - Google Patents

Description

March 22, 1932. w. SCHUCHARDT ET AL 1,850,570

NOZZLE Filed May 9. 1928 mm M w w W T fl J 4 fir A z 5 w W 3. I 9 Z??? 9 5 m 6 2 v Patented Mar. 22, 1932 urnTEo stares PATENT OFFICE WILLIAM SCHUCHARDT AND JAMES L. HEROLD, OF ST. LOUIS, MISSOURI, ASSIGNORS TO BARRY-WEHMILLER MACHINERY COMPANY, OF ST. LOUIS, MISSOURI, A CORPORA- TION OF MISSOURI NOZZLE Application filed May 9, 1928.

This invention relates to improvements in nozzles, one of the objects being to produce a simple rotary nozzle driven by the fluid discharged therefrom.

A further object is to provide a small and compact device of this kind adapted for use in washing the inner faces of bottles.

Another object is to provide a simple and efficient bottle washing device including a wiper carried by the rotary nozzle, said wiper coacting with said cleansing fluid to thoroughly clean the bottle.

Another object is to provide a thrust bearing between said rotary nozzle and a support therefor, and to provide means for reducing the thrust on said bearing, thereby permitting the nozzle to rotate freely and rapidly in response to the discharge of fluid.

With the foregoing and other objects in view, the invention comprises the novel construction, combination and arrangement of parts hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown the preferred embodiment of the invention. However, it is to be understood that the invention comprehends changes variations and modifications which come within the scope of the claims hereunto appended.

Briefly described, one form of our improved nozzle comprises a rotary member ineluding a discharge head having a. pressure chamber therein and tangentlally disposed passageways leading from said chamber to.

the exterior of said head. An injector tube extends from said head and is loosely mounted for rotation in a housing on a fluid conductor that supports the device. A thrust bearing may be disposed between the housing and the rotary member.

In order to reduce the thrust on said bearing, an injector nozzle discharges the fluid from said conductor to the injector tube, so as to create a suction in a suctlon chamber where the thrust bearing is located.

1 as at 3.

Serial No. 276,237.

When a fluid flows through the device, a suction is created in the suction chamber and the outside atmospheric pressure will tend to force the rotary member inwardly against the pressure of the fluid passing through the nozzle, thus greatly reducing the thrust against said bearing.

Fig. 1 is an elevation of a nozzle and supporting parts embodying our invention, showing how the device may be used in wash- 1 ing bottles.

Fig. 2 is a top plan view of a nozzle embodylng our invention.

Fig. 3 is a longitudinal sectional view along the line 3-3 of Fig. 1.

Fig. 4 is a fragmentary sectional view along the line $4: of Fig. 3.

Fig. 5 is a sectional view along the line 5-5 of Fig. 3.

To illustrate one form of the invention, we have shown a rotary device comprising a conical discharge head 1, and an injector tube 2 extending from and threaded to the head The injector tube terminates at its upper end in a pressure chamber 4. provided in the discharge head 1.

Diametrically opposed passageways 5 eX- tend upwardly and tangentially from said pressure chamber 4; and open onto the conical side faces 6 of said head 1.

The rotary device A is freely mounted on a supporting member B including a fluid conductor 7 terminating in a'housing 8 and a sleeve 9 extending upwardly from and threaded to the housing 8 as at 10. Said housing 8 and sleeve 9 surround the injector tube 2 to guide the same in its rotation, and a thrust bearing including an anti-friction device 11 is mounted between the sleeve 9 and the injector tube 2.

The anti-friction device 11 may be in the form of a ring of anti-friction metal as shown in Fig. 3. This ring 11 contacts with a radially disposed annular seat 12 formed on a laterally extending flange 13 on the in- 90 ner end of the injector tube 2. The sleeve 9 has its inner end formed with a like annular seat 14 complementary to the seat 12, and the ring 11 contacts at its upper face with said seat 14. (Fig. 3.)

An injector nozzle 15 extends from the fluid conductor 7 and projects into and is spaced from the walls of a recess 18 in the inner end of the injector tube 2 to provide an annular passageway 19 surrounding said nozzle 15. j

The injector nozzle 15 is formed on a noz zle body 20 frictionally secured in the housing 8 and spaced from the flange 13 to provide a suction chamber 21 therebetween. As shown in Fig. 3, said chamber 21 extends upwardly around the flange 13 and also around the outer face of the ring 11. This ring closes a portion of the suction chamber 21. The passageway 19 connects said suction chamber 21 with an angular annular passageway 22 leading into said injector tube 2 at the discharge end of said injectornozzle 15.

Thus we provide an aspirator for creating a suction in said suction chamber 21 on the passage of a fluid through the injector nozzle 15 into the injector tube 2. This suction has the primary effect of reducing the thrust, due to the passage of the fluid through the rotary nozzle, on the anti-friction bearing 11.

This tube 2 may be freely mounted in the sleeve 9 soas to provide apassageway 32 therebetween for the admissionof atmospheric pressure thereto, said pressure acting against the upper side of the flange 13 to oppose the thrust against the bearing 11.

The aspirating effect described will tend to remove any fluid that may enter said suction chamber, thereby preventing leakage of fluid at the thrust bearing 11, and also reducing or eliminating the friction which would otherwise result from fluid pressure at the thrust bearing.

y We willnow refer to the simple wiping device shown in the drawings; A transverse slot 26 is provided in the end of the conical head 1. This slot is slightly flared at the top, in order to facilitate the insertion into the slot of a strip of flexible material 28. This strip may be made of elastic rubber, and it is inserted in the slot by first stretching, or elongating the strip so as to reduce its thickness, the piece being held aproximately horizontal, as suggested in Fig. 1, and slipped into the slot 26.

On releasing the strip of rubber 28, it will expand transversely and frictionally'engage the side walls of the slot 26, and it is thus frictionally, or tensionally, held in the slot. Whensecured in this manner, with the upper margin of the rubber strip entirely above the slot 26, the portion in saidslot will be retained under more or less tension, while the other portions are free of tension, and the strip of rubber will then diverge from the slot to form the wings 29 which lie a proximately at right angles to the conical aces of the head 1.

A hole 30 is provided through the head 1 for the insertion of a tool (not shown), and diametrically disposed slots 31 are formed in the flange 13 for the insertion of a screw driver or like tool, whereby the head 1 may be held and unscrewed from the injector tube 2.

The apparatus may be supported on a supply pipe 33 having threaded connection as at 34: with the fluid conductor 7 and a wrench engagingelement 35 is provided to facilitate the removal of the device from said pipe 33.

The interior of said pipe 33 communicates through with the interior of the pipe 7, and the fluid may be supplied through said pipe 33.

In use, the fluid passes through the injector tube 2 into the pressure chamber 4 and is discharged through the tangential passage ways 5. The nozzle is rotated partly by the reaction of the confined fluid in flowing through said tangentially disposed passageways 5, and partly from the thrust caused by the impingement of the'tangential streams on an adjacent surface, thus thoroughly distributing the fluid about contiguous areas.

The preferred use of our device is in connection with washing bottles, as suggested in Fig.1. In such use the fluid is caused to impinge on the inner face of a bottle 25. As the nozzle revolves, the fluid is directed circumferentially thereby, and also, by means not shown, the pipe 33 may be raised and lowered so as to cause the nozzle to axially traverse the interior of the bottle. Thus the fluid may be distributed over the entire inside face of the bottle.

The flexible wiper 28 coacts with the fluid by loosening and dislodging any matter that may be on said walls 24, and the fluid may quickly wash such matter out of the'bottle, said bottle being disposed with its open end downwardly, as suggested'in Fig. 1, so that the fluid will readily drain from the bottle.

The wiper 28, being flexible and foldable, permits the ready insertion of the device through the relatively narrow neck as usually found in bottles. Partly from its own elasticity and partly from the centrifugal effect, the terminal portions 29 are extended as suggested in Fig. 1 to contact'with the wall 24 at all points.

scrubbed in a very simple and inexpensive manner.

l/Ve claim:

The cleansing action of the fluid w forcibly discharged from the rotating nozzle Thus the interior wall of the bottle is thoroughly washed and 1. In a device of the kind described, a noz driven by the fluid discharged therethrough, said rotary device having a chamber and tangentially disposed passageways leading from said chamber to the exterior of said rotary device, a fluid conductor supporting said rotary device and communicating with said chamber, a thrust bearing disposed between said conductor and said rotary device, and means for reducing the thrust on said bearing, said means including a suction chamber disposed about said bearing, said rotary device forming part of the walls of said suction chamber, and a suction device communicating with said chamber through which suction device the fluid is discharged to create a partial vacuum in said suction chamber, there being a passageway for the admission of atmospheric pressure to said thrust bearmg.

2. In a device of the kind described, a nozzle including a rotary device adapted to be driven by the fluid discharged therethrough, said rotary device having a chamber and tangentially disposed passageways leading from said chamber to the exterior of said rotary device, a fluid conductor supporting said rotary device and communicating with said chamber, a thrust bearing disposed between said conductor and said rotary device, and means for reducing the thrust on said bearing, said means including a nozzle through which the fluid is discharged from said conductor to said rotary device, and a suction chamber, said rotary device forming part of the walls of said chamber, said suction chamber being in communication with the outer face of the last mentioned nozzle, and there being a passageway for the admission of atmospheric pressure to said bearing.

3. In a device of the kind described, a nozzle including a rotary device adapted to be driven by the fluid discharged therethrough, said rotary device having a chamber and tangentially disposed passageways leading from said chamber to the exterior of said rotary device, a fluid conductor supporting said rotary device and communicating with said chamber, a thrust bearing disposed between said conductor and said rotary device, and means for reducing the thrust on said bearing, said means including an aspirating nozzle extending from said conductor and projecting into said rotary device, and a suction chamber surrounding said aspirating nozzle, said rotary device forming part of the walls of said chamber and the thrust bearing being arranged to close a portion of said suction chamber.

4. A bottle washing device provided with a rotary nozzle through which the cleansing fluid is discharged, and a flexible wiper carried by said rotary nozzle, said nozzle having a transverse slot, and the flexible wiper being tensionally secured in said slot.

5. A bottle Washing device provided with a nozzle having means for rotating it by the fluid discharged therethrough, and a flexible wiper carried by said rotary nozzle, said nozzle being provided with a conical tip having a transverse slot, and said wiper being a strip of rubber tensionally secured in said slot and diverging from said conical tip. In testimony that we claim the foregoing we hereunto aflix our signatures.

WM. SCHUCHARDT'.

JAS. HEROLD.

Images