US2332407A - Nozzle used for sandblasting purposes - Google Patents

Description

'Oct. 19, 1943. c. D. SPENLE 2,332,407

NOZZLE USED FOR SAND BLASTING PURPOSES 2 Sheets-Sheet 1 Filed Jan. 6, 1942 m m m INvENToR cm quas Dnvvas SPEHLE,

s QJWS RN Lk-I HTTO E1 Oct. 19, 1943. c. D. sPENLE NOZZLE USED FOR, SAND BLASTING PURPOSES Filed Jan. 6, 1942 2 Sheet s-Sheet 2 Ian We M r L L iii... m

- INVENTOR'. v CHanLes Dawes SPENLE 8U u/nlc fifi TTORH -I Patented Oct. 19, 1943 V UNITED? .sTA- TEs PATEN V'NDZZLE USED'IFORISANDBLA'STING I I "r RPo-sEs Charles Davies Spenle N orthenden, England Application January 6, 1942;sjenaiN6. 125;722 I In Great Britain January 8, 1941 This invention relates to improvements in and'..

connected with discharge nozzles used with sand blasting apparatus for, sand blasting purposes, such as'the sand-blasting of castings, and oiher articles or structures, for cleaning and scarifying purposes, or for sand blastingetched or other surfaces. as is known.

The discharge nozzles attached to'the flexible ponents inter-connecting or contacting or adapt able or. adjustable one to another can be introduced and secured in the nozzle or chuck when serious wear of such elements has taken place.

Means are used to clamp and where necessary permit adjustment of the renewable. or introducible and combining lining elements.

Accordingly under this invention use is made of a nozzle body or chuck of appropriate construction for attaching to the pipe line and for handling and fashioned to receive and support the renewable or inter-changeable 0r re-conditioned liner elements of cast-iron, steel, tungstencarbide, or other metal or alloy; which elements are fashioned to combine or produce the renewable or interchangeable liner structure to he secured in the chuck or nozzle body. The invention is hereafterfifully explained and described, reference being made to the accompanying drawings which show several constructions. In the said drawings:

Fig. 1 shows an end elevation of a nozzle or chuck at the inlet end and with the combining renewable hard wearing element's situated at the inlet end.

Fig. 2 is a separate View of one of the combin-- ing renewable elements of which'six are seen in position at Fig. 1.

Fig.3 shows an end view of Fig. 2. Fig. 4 is a longitudinal'section on the line 4 -4 in Fig. 1. e i Fig. 5 shows a View of the structure looking upwards from the bottom of Fig. 4. A

Fig. 6 isa separate viewcf one ofthe renew-i able and interchangeable .hard wearing liner ele meritsv (cap able Fig.7 is a plan at'the inlet end and shows a slot typei of nozzle with renewable and changeable combining hard wearing liner elements. Fig, 8 shows'a section onthe line 8-0 of Fig. '7.

Fig. 9 is a side elevation of Fig.7.

outlet.

*Fig. llshbws an assembly of wear resistingre faceable and renewable liner elementsof modified cross-section. V W

According to this invention and with reference to Figs. 1 to 6 there is used a nozzlebody-or chuck which is of appropriateldesign' for't'he intended sand blasting use, and; in the drawings, a' circular casing. or holderu is shown adapted to be fixed to a fitting on the pipe as for example by attach-' ment of awelded-on flange a indicated atFig. 4. 'Theoutlet or delivery end of-the nozzle is shownfitted at the delivery with hard wearing liner elements .of abrasion resisting metal b. These may be varied as to shape butare shown as of octagonal shap in cross-section and six are indicated abutting oneto another within the bore of; the nozzle. ,When assembled'infpositionin the nozzle body they can be'held in place b-y'screws c. To further sustain .;the elements b their outer ends may abut against'a. flange 0 shown in dotted lines, Fig. 4.; Such elements!) provide a liner with hexagonal passageway ahd whenjwear has taken place same" can be turned about to present a fresh wearing surface to resto're the contourfof the forward passage wavf of, the nozzle'; It is obviousthat as wearoccurs of liner elements'fbfsame can be taken outand re-shfaped,then're ccmbined and set-up by the screws 0 to restore" was approximation of the originalpassa'geway, so that the wear resisting elementscan be gradually used up as fares possible. The operative 'facesof liner elementsb can be roun'ded o'r struck to a curve'as indicated by dotted lines at b so as to present an approximate cylindrical here if required; As regards the'rea'r 'orinlet end orphe nozzle, the renewable liner elements therefor consist; in"

the illustration, of six tapered plates (2 with in clined longitudinal edges d as clearly shown by Figs. 2 and 3. These are assembled or combined as shown by Figs. 1 and 4 andproduce a tapered hexagonal passage way or inlet. The inner ends abut on the liner elements b andascrewed ring a is shown to retain in place theouter ends or the liner element (1. Screws d act on the rear of the six tapered plates (1. It is seen that the'i'nner ends o f the; tapered plates d wherethey rest on 'ofbeing re-c'onditioned)' seen'in Fig. 10 shows an endvie'w looking towards the i 2 t the elements 12 produce a mouth coinciding with that produced by the assembly of liner elements b when the latter are of the shape shown in full lines in Fig. 5. It will also be apparent that the s shape and disposition of the liner elements (1 produce a tapering hexagonal inlet to the nozzle. The inclin ed liner elements d do not suffer to the same e I t'ittjas'iint felemeiits ib, but" w n serious wear "of "a liner elementdoccurasame can be re-conditioned and replaced, or merely l0 replaced.

In the modified structure shown by fig s zj to 10 the nozzle body A is rectangular in shape andthe outlet or delivery section consists of two rec;

tangular plates e, said plates 6 bei'r'i'gof warre Wr,

such screws preferably enga'ge'with' the" osition,

up p ces etic snel le and fi lilig lww amr xemnk F at t. liner elements e, e constitutes th"f orwar'd for outlet part ofthe nozzle which it willbe' seefi'is l.:- 1 i. an 9 J-V'v 1'' .mleiex dsq hs 33%42. AL9Q P 9 5%? n lar. a esiea li e lemfii i .9? W a fi s-m t -9 WSTYILYHPCII ar 9 in. anqdl c a alar Pe n -e n ish i s g 'ri' equs rbra s e s .r ar. t is i Pet l] held in Plat 1 y;

ce aaid mattwr'ab a e as liedi a q ii n 1. This ra g gctli i Jill as mi t by th tieitaa i ii e-fi aria?- By ct at on. .QL ha cre s 9? 33K an e mt tess r, heate e m i jet its w d h r ma ne i ma te acqfte eee i qi BtI E iP E-ZZ waremsael i ei e ql the w nds 11$; thegt psredfinl .t aan f 9 1 nzn riala as it. BL??? U,9 Pl ',7 .b, r w a re stin meta lb eseate thelte P at lx'li a a te filliiateh la P re s w ich. es. en e,- l e'iaq. ananas l nes 3. 7 l rl pyw ft ;eehswe a eeiat e wlitirszueeietea ta taric aai aa meaa arafean mi se; a ae w th s 1 .i an 1 iaii t amtl ie fbifit ie fi 'ac saia sa-iia e ner ,e

. r efieetse t eaeaea a w e eme ts .n tit-swan esliew ar na ae a; a Ye c m ranged produce oct' passalie f i alllei uq ei ieaw tb r atc t l nersamilies? l l e atmea pe aseaa W to what tanne -L s?! s te-r The spaces around the in in sinnrarmtinner;

the rear compartment of the nozzle, and'fr e's'hlydisposed or phangediaces for the interchangeabler fac 75 able or adjustable hard metal liner elements and bounded by the nozzle walls may be filled-up by running in lead to preclude easy passage of air due to the faces of the renewable re-faceable or interchan'geable liner elements not being properly ground.

I declare that what I claim is:

luAfsafidf-blals'ti'ng n zzle pdgjipr smg a body portion with "rearward and-"forward insertable liner elements of wear resisting metal or alloy,

th'-"rearward elements adapted to combine in l manner to permit same changed 'asr'e'ciuis'ite on wear taking place, means to fix and adjust said to be re-conditioned or N V fl v removable elements, and forward wear resisting liner elements capable of beingrernoved andre-ground or re-disposed and combinedto pro'videiresh wearing surfaces, and

means o'fiir 'and adjust said foward wear resistihge leriients in the body portion of the nozzle,

a1 ,as described and shown with reference to Fight to o 2. ap zegmzae-eoi tnsrnt a body po with; rearward and forward rnsertable 7 1m e ements, "or ting jmet'al" or array;

proiiuc'e "a tapered inltf mta'risito adjust and; insert'able felemen'ts id. e eme t a d fpr rar pro'd 1 'slot lilsefoutlet means" to hold and alie iigout a ic iqw W sent fre'slffad origi'nalf inner contour as? described and shown ce tlo' Fig s. 7m n."

oijw jrd lns eftabl'e-liner elements or met ll -t 1. 1 "ha s; whithis a in le 'ent'ityfsa'id'body portion a tugl'inalabutting*iin'er elements of wear resistin mtalbr'alloy, whichfel''ri'ieiit's provide a complete interior-ts thenozzle to roduce a bunt-up' taperi'ng""rea1f nozzle"compartment of 'abuttin'g" ele= me'r'i'ts'and aforward nozzle compartment of abutting 'el'emntsj'the"aforesaid rearward diner elements in the rear" compartment"adaptedtcbe' talrenFout'and re' g'rourrd or renewed and "re-a'ssembled', screwdevices to'fizi sameythe linerelv' mentsirrtheforward compartmentbeing adapted to be reversed or inverted, ground or renewedas may be requisite, screws to fix said linergelei e-ground or fresh' liner surfaces-can be brought into use to producea restored or new interior'to ments' in the 'forward compartment, all whereby A J liner elements of -the iorward compartment, all softhat a reconstituted or fresh cross secti'onal'areaof the liner elements islobtai ned forth rel-wardenspartment approximating to the'orig'i'nalboie or outlet" of the' i1oz'zle','in"'manner' described herein.

5. A sand blasting nozzle comprisingfan en'- vel'opir'ig holdifl'combining' machined liner elements fitted ,in the f rear of I said holder and capablej'ot fbei n'g re esse'diand replaceable or exchangableg" saidWiner' eIement-sshaped and m a elements "adapted to "combine and; H

v 21,332,407 I 3 ranged to produce a tapered rear compartment in e the holder, screws to fix and adjust said liner elements, a forward compartment in said holder, and longitudinal multi-sided liner elements disposed in said forward compartment adapted to abutas to their sides and to combine one with another to produce a bore or passage way, said multi-sided liner elements adapted to be dealt withand turned to bring fresh wearing surfaces into' use to restore the original bore, and screws to adjust and fix said multi-sided liner elements in operable position in the forward part of the holder. V t CHARLES DAVIES 'SPENLE.

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