US2376287A - Sandblasting nozzle - Google Patents

Description

May 15, 1945- T. SORRENTINO SAND BLASTING NOZZLE Filed March 28, 1944 Q7 fizo .1. k9

INVENTOR. THOMAS SOEIZENT/NO ATTORNEY Patented May 15, 1945 SANDBLASTING NOZZLE 7 Thomas Sorrentino, New York, N. Y., aasignor to oceanic a corporation Ship Scaling 00., Inc., Brooklyn, N. Y.,

Application March 28, 1944, Serial No. 528,438

15 Claim.

This invention relates to sand blasting nozzle.

An object oi this invention is to provide a nozzle for sand blasting, and provided with a water jacket having means to spray water about the jet of sand to settle the dust.

Still another object of this invention is to provide a device 01 the character described so constructed that the water Jacket may be removed if it is desired to sand blast without spraying water.

Another object of this invention is to provide a device oi. the character described which shall be easy to assemble and manipulate, which shall be relatively inexpensive to manufacture and yet practical and efflcient to a high degree in use.

Other objects of this invention will in part be obvious and in part hereinafter pointed out.

The invention accordingly consists in the features of construction, combinationsof elements, and arrangement of parts which will be exemplifled in the construction hereinafter described, and of which the scope or application will be indicated in the following claims. In the accompanying drawing, in which are shown various possible illustrative embodiments of this invention.

Fig. 1 is an axial cross-sectional view through a sand blasting nozzle embodying the invention attached to a sand blast hose and a water hose;

.Fig. 2 is a front end view of the structure shown inFig. 1;

Fig. 3 is a cross-sectional view taken on line 3-2 of Fig. l; and

Fig. 4 is a side elevational view of the structureshown inFig. 1. Y

Referring now in detail to the drawing, i designates a sand blasting nozzle embodying the invention. The same comprises a sand hose ll fitted onto the neck l2 of an adaptor or pipe ll. Said neck l2 may be formed with serrations I2a to hold the hose.

The adaptor I3 is tubular as shown in Fig. 1,

and is provided with external, steep pitched screw threads it at its forward end. Screwed onto the threads i8 is a union ll having internal threads l8 to receive the threads Ii. The union I! has an end wall it formed with a central opening 20. Extending through the opening 20 is a sand nozzle 22.

Said nozzle22 is formed with a flange 23 at its rear end disposed within the union and contacting the inner surface or end wall It or the latter. The nozzle 22 is somewhat tapered toward its outer end. It is formed with. a central through opening 24 enlarged at its rear end as designated by numeral". Sand is supplied by hose ii :and is blown by compressed air through the nozzle 22.

Means is provided to settle the dust around the jet or sand. To this end there is screwed to union H a water jacket 30. The union I1 is formed with external screw threads II to receive complementary plained hereinafter.

The jacket III comprises an outer cylindrical wall 22 and an inner substantially concentric wall 22, interconnected by a front end wall 24. The inner wall 22 has a tapering inner through opening 36 to receive the nozzle 22. Extending from wall 32 is an enlarged cylindrical wall 28 forming an inner shoulder 29 at the bottom of said enlarged wall. The enlarged wall It is formed with internal threads 40 to receive the threads 3| oi the union.

At the rear end of the inner wall a is a shoulder 23a in the same plane as the shoulder 39. A gasket ll contacts the shoulders 39, 32a.

It will be noted that the end wall I! of union i'l contacts said gasket to close the rear end of the water jacket and seal the same. The space or chamber 45 between the inner wall 23 and the outer wall 32 forms a chamber for receiving water in the manner described hereinbelow.

Wall 28 may be formed with ribs 46 to afl'ord a good grip for tightening the jacket on the union. 30 The union i'I, if desired, may furthermore be formed with spaced openings 41 to receive a spanner wrench.

The end wall 34 is formed with a plurality of equiangularly spaced, forwardly and outwardly divergent small openings 50 through which the water passes from the chamber 45. Wall 22 is formed with an integral, rearwardly and outwardly inclined pipe 52. Screwed to pipe 52 is a water valve or cock 53 to control supply of'water to the jacket. Attached. to said valve is a nipple "a and attached thereto by means or a union 54 is awater hose '5.

It will now be understood that water is supplied to the chamber 45 and causes a spray through the openings 50 surrounding the jet oi sand which issues from the nozzle 22 to settle the dust about said jet.

It will thus be seen that there is provided a device in which the several objects of this in- 50 vention are achieved, and which is well adapted to meet the conditions or practical use.

As various possible embodiments might be mad of the above invention, and as various changes might be made in the embodiments above set as forth, it is to be understood that all matter herethreads or jacket 3,0, as will be exand means to supply means to attach said 'nular walls, and a front 2 a,s7o,sav in set forth or shown in the accompanying drawmeans to receive a hose and provided with e: ing is to be interpreted as illustrative and not in ternai screw threads, a union screwe to sat alimitingsense. screw asandnolrsleoonnectedtosaii Having thus described my invention, I claim adaptor by said a water jacket surround as new and desire to secure by Letters Patent: ing said neck and having inner and outer-an- 1. A sand blasting nozzle comprising an adaptor nular walls, a front end wall in sair to which a sand hose'may be connected, 9. union inner and outer walls and forming a water chamscrewed to said adaptor, asand nozzle, said union her, said front end wall being formed with a being adapted to connect said sand nozzle to said plurality of openings, said 0 m adaptor, a. water jacket surrounding said nozzle, said water jacket having spray openings surrounding said nozzle, and means to attach said jackettosaid-union. v 1

2. In combination, a sand nozzle, means to supply sand to said nozzle, a water jacket surrounding said nozzle, said water jacket being provided with a plurality of spray openings at one end surrounding saidnozzle, said spray openings being equiangularly spaced and forwardly divergent, said Jacket being open at its opposite end, means to attach said Jacket. to

said nozzle, and means to close said open end of said jacket upon attaching said'jacket to-said nozzl 3. In combination, a -sand home, means to supply sand to said nozzle, a water Jacket surrounding said nozzle, said water Jacket being provided with a plurality of spray openings surrounding said nozzle, said spray openings being equiangularly spaced and forwardly divergent, water to the water jacket, jacket to said nozzle, said jacket extending forwardly beyond the forward end of said nozzle, and having an outwardly flaring inner surface disposed forwardly of the forward end of said nozzle.

4. In combination, a tubular adaptor having means to receive a hose and provided with external screw threads, a union screwed to said screw threads, a sand nozzle connected to said adaptor by said union, a water jacket surrounding said nozzle and having inner and outer annular walls, and a, front end wall interconnecting said inner and outer walls and forming a water chamber, said front end wall being formed with a plurality of spaced openings, and means to detachably connect said Jacket to said union.

5. In combination, a tubular adaptor having means to receive a hose and provided with external screw threads. a union screwed to said screw threads, a sand nozzle connected to saidadaptor by said union, a water jacket surrounding said nozzle and having inner and outer anend wall interconnecting said inner and outer walls and forming a water chamber, said front end wall being formed with a plurali of spaced openings, said openings being divergent forwardly, and means to detachably attach said jacket to said union.

6. In combination, a tub ar adaptor having means to receive a hose and provided with ex ternal screw threads, a union screwed to said screwthreads, a. sand nozzle-connected to said adaptor bysaid union, a water Jacket surrounding said nozzle and having inner and outer annular walls, and a front end wall said inner and outer walls andforming a water chamber, said front end wall being formed with a plurality of spaced openings, said openings being divergent forwardly, said outer wall being provided with an integralrearwardly and outwardly inclinedpipe extension, and means to supply water to said water jacket through said pipe extension, and means to detachably attach said jacket tosaid union.

7. In combination, a tubular adaptor having interconnecting V divergent-Imam!- said outer wall being provided with an in pipe extension, means-to supp y water to said water jacket through pipe extension, andavalvetocontrol supplyoi watertosaidwateriacket,andmeanstodetachnular walls, a front end wall interconnecting said supp y water to said water Iacket through said pipe extension, a valve to control supp y of waten to said water jacket, and said outer wall being screwed to said union.

9. In combination, a tubular adaptor having means to receive a hose and provided with external screw a union screwed to said screw threads, a sand nozzle connected to said adaptor by said mien, ing said nozzie and having inner and outer annular waits, a front end wall interconnecting said inner and outer and forming a water chamber, said front end wali being formed with a plurality of spaced openings, said openings being divergent forwardly, said outer wall being provided with an integral pipe extension, means to supply water to said water jacket through said pipe extension, a. valve tc control supply of water to said water Jacket, said outer wall being screwed to sfld union, and means on said union for sealing the rear of said chamber.

10. In combination, an adaptor formed with a screw threaded portion, a, sand nomle contact-' ing the forward end of the adaptor, a union having internal screw threads screwed to said screw said union having an end wall threaded saidimionhaving an end wall outer wairof sum jacket havingan internally external screw.

inner and enter an-' a water jacket surround- ;hreads on said union, said inner and outer walls if said jacket having shoulders, a gasket on said shoulders, and the end wall of said union bein adapted to press said gasket against said shoulders.

12. In combination, an adaptor formed with a screw threaded portion, a sand nozzle contacting the forward end of the adaptor, a union having internal screw threads screwed to said screw threaded portion, said union having an end wall formed with a central opening through which said nozzle passes, said nozzle being formed with a flange pressed against said adaptor by said end wall, a water jacket surrounding said nozzle and having an inner wall, an outer wall connected by a wall at the forward end of said jacket, the outer wall of said jacket having an internally screw threaded portion screwed to external screw threads on said union, said inner and outer walls of said jacket having shoulders, a gasket on said shoulders, and the end wall of said union bein adapted to press said gasket against said shoulders, said outer wall having a rearwardly inclined integral pipe extension to receive water for said jacket.

13. In combination, an adaptor formed with a screw threaded portion, a sand nozzle contacting the forward end of the adaptor, a union having internal screw threads screwed to said screw threaded portion, said union having an end wall formed with a central opening through which said nozzle passes, said nozzle being formed with a flange pressed against said adaptor by said end wall, a, water jacket surrounding said nozzle and having an inner wall, an outer wall connected by a wall at the forward end of said jacket, the

outer wall of said jacket having an internally screw threaded portion screwed to external screw threads on said union, said inner and outer walls of said jacket having shoulders, a gasket on said shoulders, the end wall of said union being adapted to press said gasket against said shoulders, said outer wall having a rearwardly inclined integral pipe extension to receive water for said jacket, and a valve on said pipe extension.

14. A sand blasting nozzle comprising an adaptor to which a sand hose may be connected, a union screwed to said adaptor, a sand nozzle, said union being adapted to connect said sand nozzle to said adaptor, a water jacket surrounding said nozzle, said water jacket having spray openings surrounding said nozzle, and means to attach said jacket to said union, said jacket being open at one end, and means on said union to close said end of said jacket.

15. In combination, a tubular adaptor having means to receive a hose and provided with external screw threads, a union screwed to said screw threads, a sand nozzle connected to said adaptor by said union, a water jacket surrounding said nozzle and having inner and outer annuluar walls, a front end wall interconnecting said inner and outer walls and forming a water chamber, said front end wall being formed with a plurality of spaced openings, said outer wall being provided with an integral pipe extension, means to supply water to said water jacket through said pipe extension, and means to attach said water jacket to said union.

THOMAS soaaan'rmo.

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