US2143296A - Cleaning nozzle - Google Patents

Description

Jan. 10, 1939. H. F. BEEMAN CLEANING NOZZLE Filed March 5, 1936 Patented Jan. l0, 1939 UNITED STATES PATENT oI-Flcs- Schirm.

This invention relates to a` nozzle designed for use in connection with an air pressure hose or the like. l

An object of the invention is to Aprovide a nozzle which can be coupled readily to various types of couplings or chucks on airflines such as found in automobile service stations, it being posl nozzle that it can be adjusted angulariy relative to its vaived hose connection, whereby the structure can be arranged most advantageously for use either as a suction cleaner or a blower.

A still further object is to provide a quickly adjustable clevis of new and novel construction for securing a hose to the device.

With the foregoing and other objects in -vi'ew which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully -described and pointed out in the claims, it being lunderstood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

In the` accompanying drawing the preferred formof the invention has been shown.

In said drawing- Figure 1 is a central longitudinal section through the complete device arranged for use as a suction cleaner, an air line being shown connected thereto.

Figure 2 is a section on line 2-2, Figure 1.

Figure 3 is a side elevation showing the nozzleA adjusted for use as a blower.

Referring to the figures by characters of reference, I designates the tubular body of the nozzle preferably tapered toward one end as shown while its other end has a head 2 inclined relative to the body and having air inlet 3 which can be of any desired proportions but preferably is in the nature of a narrow transversely extending slot such as lcommonly employed in the suction heads of vacuum cleaners.

The center of the head is thickened as at 4 and has a fiat top 5. A bore 6 extends from the top 5 down into the thickened portion 4 and has v. an outlet 'I 'at ,its lower end which is in line with the axial center of body I and opens thereinto. The upper portion of the bore is engaged by a threaded pivot bolt 8. An annular groove 9 is formed in the bolt between top 5 and the head I0 oi!A the-bolt and opening into this groove is a diametrical passage I I which opens into the upper end of a longitudinal .passage I2 in .the bolt.

This passage communicates with the space be' neath the bolt.

A sleeve I3 is rotatably mounted on the bolt 8 between top 5 and head and gaskets I5 are interposed' between the ends-of this sleeve and the top and'head to insure tight connections. A radial extension I5 is formed on the sleeve and has an opening I'I in communication with the groove 9. In this opening I1 is seated a screw-thread- Aed nipple I8 projecting from one end of a valve casing I9. A valve chamber is formed in the casing and a. passage 2| extends therefrom through nipple I9.

A threaded socket 22 is formed in the other end of the valve casing and communicates at 23 with the bottom portion of chamber 29 at a point out of line with passage 2|.

- A slide or plunger valve 24 is mounted in chamber 20 and is yleldingly supported by a spring 25. This valve has an exposed head 26 to be depressed by hand and the valve normally closes communication between socket 22 and passage 2I. When it is depressed, however, it establishes this communication.

Seated in socket 22 is a nipple 21 at one end of a coupling member 29 having a. trough-like extension'29 at its other end. An upwardly inclined stud 30 is formed in the inner end portion of the extension 29 and opening therethrough is the inclined end of a passage 3l which extends through thenipple 21 to the vsocket 22.

The member 28'is straddled by a yoke 32 pivotally connected thereto at 33 and carrying a set screw 34.

When it is desired touse this device the coupling head H of an air line or hose L is placed in the extension 29 and on the stud 3l) and the yoke 32 is swung into position therearound. By then tightening screw 34 the head H will be clamped tightly in place.

If the nozzle is to be used for suction purposes the parts are arranged as shown in Figure v1 and a tube T is tted on the tapered body land extended to a bag or to any point where they removed dust and dirt are to be discharged. Valve 24 is depressed to establish communication between passages 3I and 2| and 'air under pressm'e is immediately delivered to passage I2 from which it will `escape in a strong jet through outlet I and axially within body I. 'I'he force of this jet will cause a suction into the body through inlet 3 so that dust and dirt adjacent to the ful in cleaning the interior of a vehicle body, thev engine of an automobile, and for other cleaning purposes. It is advantageous because of its simple and inexpensive construction and the ease with which it can be handled. The coupling means employed allows the nozzle to be coupled to the heads of. various types of air lines.

What is claimed is:

1. A cleaning nozzle including a handle, means at one end thereof for attaching it to an air line, there being a passage extending through the handle, a valve in the handle for controlling the ow of air through theL passage, a tubular body.

having a suction head at one end and a discharge outlet at its other end, there being an air outlet duct in the body adjacent to the suction head and coaxial with and directed toward the discharge outlet, and a pivotal connection between the other end portion of the handle and one end portion of the tubular body, said connection establishing and maintaining communication between the passage in the handle and the air outlet, said body and connection being rotatable relative to the handle.

2. A cleaning nozzle including a tubular body having a suction head, a discharge outlet, and

an air outlet duct in the head coaxial with the body and discharge outlet and directed toward said outlet, a handle having a passage therein, means for pivotally connecting. the handle to the body for angular adjustment relative thereto,

said means maintaining communication between, the passage and the air outlet duct vat all times during the adjustment of the handle and body, and a valve in the handle for controlling the flow of air through the passage to the connection and air outlet.

3. A cleaning nozzle including a tubular member, means at one end thereof for attaching it to an air line, 'there being a passage extending through the tubular member, a valve in the tubular member for controlling the ow of air through the passage, a tubular body having a suction head at one end and a. discharge outlet at its other end, there being an air outlet duct in the body adjacent to the suction head and coaxial with and directed toward the discharge outlet, and a pivotal connection between the other end portion of the tubular member and one end portionof the tubular body, said connection establishing and maintaining communication between the passage in the tubular member and the air outlet, said body and connection being rotatable relative to the tubular member.

HENRY F. BEEMAN.

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