US1281674A - Air-brush. - Google Patents

Description

P. sEw RYN.

AIR BRUSH.

APPLICATION HLED OCT. 5. i917. RENEWED JULY 30.1918.

Patented 00b. 15, 1918.

2 SHEETSSHEET mamw P. SEWERYN.

AIR BRUSH.

APPLICATION FILED 0015,1917. RENEWED JULY 30,1918.

L2L Patented Oct. 15, 1918.

2 SHEETS-SHEET 2- snares ram. snwnnrn, or new roan, n. r.

AIR-BRUSH.

Application nled oetober 5, 1917, Serial No. 194,915. Renewed July 80, 1918. serial No.

To all whom it may concern:

Be it known that ll,.PAUL SEWERYN, a subject' of the Emperor of Austria, residing at New York, in the county and State of New York, have invented certain new and useful Improvements in AigBrushes, of which the following is a'filll, elear, and exact specification.

This invention relates to air brushes or devices for spraying liquid coating compositions, such as varnish, bronzing liquid, etc., by means of compressed air.

The object of the invention is to simplify and generally improve the construction of the device so as to make it more compact, easier to operate and regulate, and less liable to get out of order. Other objects will appear as the-description proceeds.

The invention will be first hereinafter described in connection with the accompanying drawingswhich constitute part of this specification, and then more specifically defined in the claims at the end of the description.

In the accompanying drawings, wherein similar reference characters are used to designate corresponding parts throughout the several views Figure 1 is a side elevation of apparatus constructed substantially in accordancewith this invention.

Fig. 2 is a plan view of the same.

Fig. 3 is a left hand end view.

Fig. 4 is a longitudinal vertical section through the.devioe, and

Fig. 5 is a transverse vertical section through the agitator tube which extends down into the liquid holding jar or receptacle.

' Compressedv air from any source (not shown) may be conducted by hose 1 to the lower end of the handle 2 through which an air tube 3 extends and opens at its upper end into a valve chamber 4-. In this chamber a valve 5 isnormally' held by a spring 6 on a seat through two upwardly extending posts 9 and 10, and a horizontal tube or pipe 11, and opening into a tubular casing 12 above the liquid holding jar 13. The casing 12 isconnested to the top 14 of the jar by a stud 15, and said top or cover of the jar is rigidly connected to the upper end portion of the handle 2 by a plate or bar 16.

Within the casing 12 and preferably arspecification of Letters Patent.

7 leading to a bypass 8 extending- 12 and constituting an extension thereof.

The slide 21 extends'beyond'the nut 25 in the end of the casing 26 and is attached to a trigger 260 fulcrumed' on a ball 27 fast on theby-pass air tube 11. The trigger extends down through a slot 28 in the plate 16 into position to be actuated by the fore-finger of the hand which grasps the handle 2.

The air controlling valve 5 has a stem 29 which protrudes from the front end of the casing or chamber 5 and abuts against the rear edge of the trigger, so that the air. cbntrolling valvev 5 and liquid controlling needle valve 20 are both actuated simultaneously by the trigger. The movement of both valves may be regulated by a set screw 30 mounted in the end cap 31 of theyalve chamber 1 and equipped with a lock nut 32 carrying a packing or sealing washer 33.

The front end of the air tube or casing 12 is provided with a detachable conical tip 34 surrounding and spaced from'the fluid tip or nozzle 18. The passage, of air through the space between said tips, when the trigger is pulled, creates a suction in the liquid tube 17 and draws out some of the from the jar through the tube 150 and delivers it withthe air in the form of a spray.

A tube 35 leads from the casing 12 down into the liquid containing jar 13 and is designed to conduct some of the compressed air into the liquid for the purpose of agitat; i-ng it and preventing it from getting thick at the bottom and thin at the top. The amount of air admitted to this agitator tube 35 may be regulated by the set screw 36. The post 10 has a ring 37 at its upper end to serve as a hanger. I

Having thus described my invention,what 1 claim as new and desire to secure by-Let- 1. In an air b'rush,the combination, with an air tip, of a liquid nozzle, a springters Patent of the United States 1S liquid Patented (Oct. 115, 11 9118.

" valves may be simultaneously operated, and

a set screw adapted to be engaged by said air valve to limit the movement of the trigger and both valves.

, 2111 an air brush, the combination, with an air tip, of a liquid nozzle, a springpres'sed valve controlling said liquid nozzle, a trigger connected to operate saidvalve, an air controlling valve havin a stem abutting against the trigger, where y both valves may besi-multaneously operated, a set screw adapted to be engaged by said air valve .to limit the movement of the trigger and both valves, and a lock nut on said set screw providedfwith a packing Washer to prevent escape of the air.. v

3. In an air-brush, the combination, with an air tip, of a liquid nozzle arranged concentrically within said airtip, a valve controlling said liquid nozzle, a trigger connected to operate said valve, an air controlling valve arranged'in linewith the liquid .In testimony whereof I have signed my I name to this specification.

PAUL SEWERYN.

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