US813254A - Spray. - Google Patents

Description

E0. 313,254. PATEETE EEElz'o, 1906.

J. SWEENEY. SPRAY.

APPLIOATIQN FILED 3F327, 1905.

11 2712263 1 ,5 we izejf 2 SHEETS-SHEET 2.

. u rTEp STATES PATENT orr on.

JAMES MHswEENEnor ANAOONDA, MONTANA, ASSIGNOR or ONE-THIRD TO FRED M. SCHWARTZ, or ANACONDA, MONTANA, AND ONE-THIRD TO HUGH H. SWE EY, or SEATTLE, WASHINGTON.

' SPRAY.

Specification of Letters Patent Patented Feb. 20,1906.

Y. Application filed April 27, 1905. Serial No. 257,716.

To a, whom it may concern} Be it known that I, JAMES M. SWEENEY, a citizen of the-United States, residing at Anaconda, in the county of Deerlodge and State of Montana, have invented new and useful Improvements in Sprays, of which the following is a specification.

This invention relates to spraying devices designed especially for usein s raying paint, whitewash, and the like, and as forits objects to produce a comparatively simple in-- device of this character in whichexpensive the liquid will be spread smoothly and evenly over the surface under treatment, one wherein the flow of liquid from the tank or reservoirmay be readily controlled, and one in which 4 the volume of air or other fluid employed for impelling the liquid through the dischargeduct may be regulated to accord with the amount of liquid expelled.

A further object of the invention is to pro vide a device of thisxcharacter in which the liquid acted upon will enter the miXing-chamber somewhat in rear of the air, wherebylia bility of the latter forcing the liquid back plan view of one form of spraying-nozzle.

Fig. 3 is a side elevation of the same. Fig. 4 is a front elevation thereof. Fig. 5 is a top plan view of another form' of spraying-nozzle. Fig. 6 is a side elevation thereof viewed in the direction of the arrow in Fig. 5. Fig. 7 is a front end elevation of the same-- Referring to the drawings, 1 designates a tank or reservoirhaving a downwardly-in-- clined conical bottom'2, terminating atits central point in a feed ipe or.conduit 3, equipped with a control ing-valve 4, there being disposed in the tank above the feedpipe 3a reticulatedscreen or'shield 5. The tank 1 is further provided with apair of longitudinally-disposed relatively-spaced handles 6, an inlet-opening or mouth 7, and a pivoted bail 8, provided'at its center with an eye 9 for a purpose which'will hereinafter apear. P Threaded onto the lower end of the feedpipe 3 is a hollow body or casting 10, consti- 'tuting the mixing-chamber, into the rear end of which there is entered an air-nozzle 11,

comparative with the interior of the chamber 10, whereby a s ace 12. for the circulation of liquid-around t e nozzleis. resented- The nozzle 11, which has an eiilarged rear 'end threaded into the end of the body 10,- is in turn in threaded engagement with the forward end of the compressed-air pipe or duct 13, equipped'with a controlling-valve 1.4, it being observed in this connection that the pipe 13 is suitably connected with an air or other fluid compressor, (not shown,) whereby a supply of fluid under pressure is discharged ghrough the nozzle 11 into the mixing-cham- Connected with the forward end of the ber 12 therein is a flexible discharge pipe or duct 15, the receiving end 16 of which isin line with the discharge end of the nozzle 11 and is of somewhat greater diameter than thelatter, whereby the air discharged from the nozzle may enter freely into the dischargeduct 15. I

Connected with the outer or discharge end of the duct 15 is a spraying member or nozzle 17, which, as illustrated in Figs. 2, 3, and 4, comprises a tubular portion 18, designed for entrance into the end of the pipe 15, and a pair of relatively movable side members or sections 19, pivotally connected, preferably by means of hinges 20, with the tubular portion 18, the sections 19 being equipped with overlapping edge walls or flanges 21, as seen more clearly in Fig.4,whereby the sections may bemnoved relatively on their pivotal charge end of the nozzle, as will be readily understood. The sections 19 are normally justed positions by a clamping member or screw 22, engaged with the inner flange of one of the sections and working in a slot 23,

tion, said slot being curved to accord with the axes 20 for enlarging or contracting the disformed in the outer flange of the othe; secwhich is of considerably-reduced diameter I body 10 and communicating with the chem fixed against movement, and in their adarc of movement of the sections on their piv- I otal axes 20.

In practice the'tank or reservoir 1 is sup ported from a I hook or support entered through the eye 9 of bail 8, and upon opening of the valve 4 the liquid within the tank flows by gravity through the feed-pipe 3 into the mixing-chamber 12, in which it circulates freely around the air-discharge nozzle 11, it i .10

being noted in this connection that'the discharge end of feed-pipe 3 is disposed slightly in rear of the discharge end of the nozzle, whereby-liability of the fluid under pressure forcing the liquid back into the tank 1 is obviated. As theliquid flows into'the chamber 12 it is caught by the current of air passing from the pipe 13 through the nozzle 11 and expelled under pressure through the dis' charge-duct 15 andnozzle 17., by which latter it is spread smoothly and evenly upon the surface to be, coated, it being apparent that v I the force of expulsion of the liquid may be regulated through the medium.of valve 14, which controls the volume of air discharged through the nozzle 1 1, and, furthermore, that by means of the valves 4 and 14 the volumes of liquid and air maybe regulated to properly accord with each other. It is further apparentthat bv adjusting the'sections 1 9 of the nozzle relatively to regulate the size of its discharge end the volume of the spray may becontrolled to accord with the area of the surface to be covered.

In Figs. to 7 there is illustrated a modifled form of spraying-nozzle which comprises a tubular portion 18, carrying at its the surface to be coated, with the inclined edges of the sidewalls bearing thereon, where- I by the side wall 19 is maintained ata proper inclination relative to said surface for prop.-' erly directing"the material onto the latter, while at, the same time the material will be s rayed from the front openend of the nozz e onto andovcr'the surface under treatment. It is apparent that the capacity of this form of nozzle is comparatively greater than that of the nozzle above described, thus f especially ada'pting it for the performance of I work in which rapidity enters as an essential factor. From thev foregoing it is apparent that I producearsimple inexpensive device admirably adap t ed for the attainment of the'ends in view, it being understood that minor changes in the details herein set forth may be resorted to Without departing from the spirit of the invention.'

Having tlfus described my, invention, what I claim as new, and desire to'secure by Letters Patent, is-- a ervoir,a discharge-duct communicating therewith and aspraying-nozzle carried by the duct, said nozzle comprising-a pa'ir'pf relatively movable sections comprising-said portions andoverlapping edge flanges, and means for securing the sections in relatively adjusted positions. I

2. In a device of the class described, a spraying-nozzlecomprising a tubular por tion, a pair. of relatively movable sections pivoted atone end to said portion, said sections havin overlapping-edge flanges and be-,

ing adjusta le for varying the 'size of the discharge end of the nozzle, and a clampingscrew carried 'by'one of the flanges and coopcrating with the companion flange for fixing the sections in adjusted positions.

In testimony whereof I afli-x my" signature I I in presence of two witnesses.

, 7 1. In a device of the class described, a res- JAMES, M. SWEENEY. f,

Witnesses: Jon N LEVIOK,

PEARL OARIHEB.

Images