US1016144A - Air-brush nozzle. - Google Patents

Description

N. M. HANSEN.

AIR BRUSH NOZZLE. I APPLICATION rum) JUNE 2, 1911.

1,01 6, 144. Patented Jan. 30, 1912.

JNWNTUR.

, UNITED STATES PATENT oFFIoE.

NIELS M. HANSEN, OF TOLEIOO, OHIO, ASSI G-NOR TO THE DE VILIBISS MANUFACTURING COMPANY, OF TOLEDO, OHIO, A CORPORATION OF OHIO.

rim-BRUSH Nozznn To all whom it may concern Be it known that I, NIELS' M. HANSEN, a

. citizen of the United States, and a resident of Toledo, in the county of Lucas and State of Ohio, have invented a certain new and useful Air-Brush Nozzle; and I .do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification. .My invention relates to atomizing instruments and particularly to air brushes of the class in which ,a stream of air from one nozzle is directed over the discharge end of another nozzle to create a suction action therethrough.

The object of my invention is to improve upon instruments of this class whereby a broader and more efiicient and uniform spray of the fan type is discharged therefrom than has been possible with the instruments heretofore used.

The invention is fully described in the following specification, and while' in its broader aspect it is capable of embodiment in numerous forms, a preferred embodiment thereof is illustrated in the accompanying drawings, in which-- Flgure 1 is an elev'atlon of an instrument embodying my invention with a portion of the same broken away. Fig. 2 is an enlarged plan view of the portion of the instrument containing the nozzles thereof. Figs.

3 and 4 are enlarged end and side views of the air nozzle. Fig. 5 is an enlarged end view of the liquid nozzle, and Fig. 6 is an enlarged diagrammatical view of the air nozle and discharge orifice of the liquid nozzle with the former partly in section.

Referring to the drawings, 1 designates a receptacle of any suitable form for liquid paint, lacquer, powder or other matter which it may be desired to apply in spray form.

to a receiving surface. Upon the top of this receptacle is mounted a tube 2, which has one end in communication with a source of fluid under pressure, such for instance as air, and has its other end provided with a discharge nozzle 3 for directing a stream of air'across the discharge end of a nozzle 4,

' Specification of Letters Patent. .Application filed June 2, 1911.

Serial No. 630,782.

.which is mounted on the top of the receptacle and has a tube 5 projecting downward therefrom into the receptacle. The nozzle 4 is preferably inclined slightly from a plane at right angles to the axis of the nozzle 3 in the direction of discharge of such nozzle and the discharge ends of the two nozzles terminate adjacent each other, as shown with the discharge end of the nozzle 3 slightly to the rear of the discharge orifice of the nozzle The feature of 'mypresent invention con sists in so relatively shaping the discharge ends of the two nozzles 3 and 4 that a fan spray of maximum width and substantially uniform density throughout its width is obtained.- This is accomplished by' making the discharge orifice of the nozzle 4 in the form of an arc of a circle the axis of which is located to the rear of the end of the npzzle from in a thin fan-like stream which coversthe transversely elongated discharge orifice of the liquid nozzle 4. The discharge orifice of the nozzle 4 is of, greater length than the discharge orifice of the nozzle 3 to render the length of the'former substantially equal to the maximum width of the fan-like stream'of air, which is discharged frorrf the nozzle 3, at its point of crossing the liquid nozzle, as illustrated in Fig. 6.' The inner side of the outer end portion of the nozzle 4 is concaved in concentric relation to the curved orifice thereof, as shown, to permit a projection of the end of the nozzle 3 into close proximity to the liquid nozzle orifice.

Patented Jan. 30, 1912.

. 3 and .in the plane of discharge of. said nob It is found in practice that the forming of the end of the air nozzle and the orifice of the liquid nozzle in concentrie'arcs is very important in air brushes of the character described in the obtaining of a fanlike spray of substantially uniform density throughout its width as the suction thereby created within the liquid tube by the force of the air discharge thereacross is as great at the ends of the discharge orifice of the liquid nozzle as at the center thereof.

"While my invention is shown and described as used in connection with an apparatus in which material is drawn from the receptacle 1 by suction created within the nozzle 4 by the discharge ofa stream of air thereacross, it is also intended for use in the spraying of powdered or granular substances the nature of which would not permit their being drawn through the nozzle 4 and tube 5 by suction but which must be forced therethrough by some suitable means for such-purpose, the discharging of the air across the nozzle 4 in such case serving only to pick up and carry the substance with it in a fan-like stream as it is ejected from the nozzle 4..

I wish it understood that my invention isnot limited to use in any particular connection or to any particular construction or arrangement of the parts except in so far as such limitations are specified in the claims.

Having thus described my invention, What I claim as new and desire to secure by Let ters Patent, is,-

1. Inan air brush, a fluid nozzle and-a liquid nozzle disposed in intersecting planes with the liquid nozzle inclined in the direc tion of discharge of the fluid nozzle rela tive to a plane cutting the fluid nozzle at right angles and having its'discharge end terminating in advance of the discharge end of the fluid nozzle in'close relation to its plane of discharge, the ends of the discharge orifices of the nozzles being transversely elongated and concentric, with the orifice of the liquid nozzle of greater Width than that of the fluid nozzle,

- 2. In an air brush, a tapered fluid nozzle and a tapered liquid nozzle'disppsed in intersecting planes with the liquid nozzle inportion of the liquid nozzle being concavein substantially concentric relation to-the nozzle orifices to permit a projection of the fluid nozzle into close proximity to the discharge orifice of the liquid nozzle.

In testimony whereof, I have hereunto signed my name to this specification in the presence of two subscribing Witnesses.

M. L. OIPENHEIM.

NIELS M. HANSEN.

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