Патент USA US2105275код для вставки
Jan,.11,1938.- ~ y WQÍHQMPSON 2,105,215 FLocK APPLYING'APPARATUS Filed Feb.A 2l, 1954 3 Sheets-Sheet 1 133 “if 122 'll/1111111111111” Z’. Jari». 11,1938. 4 w. B. THoMP‘soN I 2,105,215 FLOCK APPLYING APPARATUS Filed Feb. 2l, 1934 3 Sheets-Sheet 2 :lil e 9581 75 41 JM. HQ 1938» ` ' ` w.B. THOMPSON FLOCK APPLYING ~ 2105,27@ APPARATUS ` ' Filed Feb. 21, 1954 3 sheetsèsneet s 1:16 136 J6 5 ‘as fr ` 49 fg/ ßf/ I ì 12 . /l//A/I/ im@ \ 94 I _ 95 95 -1 "` L Y fr.._.. 94. @mm . ' Patented Jan. 1l, 1.938 . v2,105,275 UNITED STATES i PATENT OFFICE 2,105,215 _ ' Fmox spuma-marinus Wayne B. Thompson, Winchester, Mass., `assign or to Spray Engineering Compan , Somerville. Mass.,-.a corporation of Massachusetts' . Application February 21, 1934, Serial No. 712,386 Y _ l Claim. 'I'he present invention relates to the art of `coating and more particularly to apparatus for applying flock, which term is used herein to desig- ' Fig. 8 is a detail view in plan of the vent valve; Fig. 9 is a detail view in' elevation of the vent valve, and e ' _ nate lcomminuted material, such as cotton, wool, Fig. 10 is a detail view in sectional elevation of silk, rayon, and the dust of vegetable fibres. ~ the vent valve on the line III-ill, Fig. 8. ~ In one commercially successful ilock applying apparatus the ilock is stored in a container into ‘which air under pressure is introduced. The container is provided with an outlet through 10 which the flock laden air is conducted to the point of application. _The container is provided also with avent through which some of the air intro duced into the container escapes to maintain a is low pressure within the container, thus to insure the action oi' the air on the ilock under velocity linstead of pressure. Experience has demon strated that the eüective rate of air flow velocity should vary with different types of ilock. Heavy flock and flock having long libres require the use of a higher rate of air now velocity than does iight ñock and flock having short libres. 'I'he ñock applying apparatus referred to was provided with means for varying the pressure oi' the air introduced into the container and therefore the >Referring to the drawings, the apparatus or . _ tool for applying ñock, is preferably provided with a metallic tank or chamber ii (Figs. 4, 5_ and 6) comprising a. container for a large amount oi' ñock. After the tank I I is partially filled with lfiock’its open top is covered by a cover I2. The interior of the cover I2 is provided with a gasket i3 to engage the circular top edge of the tank II and form an air tight joint. 'I'he ‘cover I2 is pro vided with a series of slotted lugs I4 (Figs. 1 and 6) each of which receives the shank of a bolt i5 which is pivoted between a pair of small plates i6 supported by the exterior surface of the tank il. The free end of the bolt I5 is screw-threaded and receives a wing-nut I1 adapted to engage the lugs Il. u . In order to introduce a motive agent,l such as compressed air, into the ñock tank Il, the appa ratus is provided with a main air line I8 (Figs. 1 rate of air flow velocity, but this'resulted in the ' and 4) which isconnected to some suitable source use of an excessive pressure,` a waste of air oi supply and is provided with a pressure reduc through the vent, and the discharge of too much flock. > ' The principal object of the present invention is 'to provide an apparatus for applying flock by which _the rate of air i‘iow velocity may be varied in aneasy, reliable and economical manner. To the accomplishment'of this object, and such others as may appear hereinafter, Jthe features oi.' ing valve I9. The main air line is provided with a T 20 (Eig. 4) one outlet of which is coupled to one end oi' Va b_ranch air line 2i passing through an internally threaded boss 22 formed in the cover I2. ` Within the tank Ii the branch air line 2i is provided with a T 23, the bottom outlet of which receives a nozzle“ having a discharge orifice 25 the 'present invention >relate to certain devices, directed vertically downward. The other outlet combinations and arrangements of parts herein of the T 23 receives one end of a horizontal pipe after described and then set forth> in the ap-f’ 26 thel other end of which ñts into a cross 21 pended claims. . . . - 'I‘he various features oi' the present invention ` will be understood readily from van inspection of fthe accompanying drawings, in which, Figure i'is a view in plan; Fig. 2 is a detail view in sectional elevation of , the `nozzle head; Fig. 3 is a detail view in sectional elevation of the flock concentrating chamber andthe dome on the line 3_2, Fig. l; . Fig. 4 is a view in sectional elevation on theline 4-4,Flg.l; 50 . ‘ « » Fig. 5 is a view in sectional plan on the line I-5, Fig. 4; - ~ Fig. 6 is‘ a view in sectional elevation on the line ¢-I,F‘ig. l;4 ' , Fig. 'I is .a detail view in the line 1-1, Fig. 6; ' sectional elevation on ` ' (Figs. 4, 5 and 6). One outlet of the cross 21 receives one. end of a horizontal pipe 28 the other end of which is provided with an elbow- 29 which 40 .receives a nozzle 30 provided with a discharge orifice 3| (Fig. 6) directed downwardly and lat' er'ally on an angle of 45 degrees. .The bottom' outlet of the cross 21 receives one end of a verti cal pipe 33 (Figs. 4 and 6) connected to a hori 45 zontal pipe u through an elbow 3.5. The free end of the pipe 24 is provided with an elbow Il which' receives a-nozzle l1 having a discharge ori ‘ ilce 38 directed downwardly and laterally onl an _ angle of 45 degrees. 'I'he remaining outlet of the vcross 21 is sealed by a plug ll. . ~ With this construction the ‘air discharged into the- flock, through the» orifices 26, 3| and 38, causes it to swirl in a ciockwisefdirection, (Fig. l. 5), in the tank II. As the ilock swirls some 2 2,105,275 , 'of it is separated from the mass of flock into _ ' ,y external frusto-conical recess 1I. The frusto--. This conical internal passage 15 and the frusto-conical flock, comxningled with the air, rises and is caused the common base 59 is the smaller base of each ' particles which commingle with the air. by the entraining action óf the air to enter a external recess 1I are reversely arranged so that lateral passage 45 (Fig. 4) formed between the cover I2 and the bottom of a casting 4I. ` , ‘The casting 4I is provided with a fiat ñoor 42 (Fig. 5) having a vertical, external peripheral wall 43 projecting upward into engagement with the bottom of the cover I2 and extending sub stantially concentric to the internal wall of the tank II from the inlet 44 of the passage 45 to a lateral outlet 45 therefrom. Adjacent the out let 45 the wall 43 terminates in a reverse curve A15 45 (Figs. 4, 5 and 6) forming a flock concen trating chamber 41 in which the flock laden air swirls in a clockwise direction. By swirling the of the frusta-conical surfaces. ‘ The front end of the passage 55 is lined with a hollow tube y12 one end of which is provided with aI ilange 13 engaged with the front end _face of the cylindrical seat 52. The tube 12 is provided with a peripheral groove 14 which is 10 engaged bythe rounded end of a screw 15 (Fig. 1), thus rendering the tube readily removable. The entrance to the cylindrical interior of the - flock in the tank I I in a. clockwise direction and by forming' the wall 43 concentric to the internal wall of the tank II, advantage is taken of the ï centrifugal action to cause the major part o_f the particles of flock entrained in the air to engage and travel along the wall 43 and thus be directed into the flock concentrating chamber 41. The 25 reversely curved wall 45 causes the flock laden 4air to swirl in the chamber 41 to maintain the flock delivered thereto in a stirred-up and float ing condition. Directly over the flock concentrating chamber .30 41 (Fig. 3) the cover I2 is provided with an tube 12 is frusto-conical, the larger base being adjacent a mixingchamber l15 occupying the 15 space in the passage 55 not lined with the tube 12. ' With this construction the flock laden -air is delivered from the passage 59 into the mixing chamber.15 where the flock and the air have 20 an opportunity to expand and then form into an axial line of iiow through the frusta-conical entrance of the reduced passage in the tube 12. When this flock laden air leaves the tube 12 it ' is again directed axially by the frusto-conical 25 surface 15 of the nozzle 53 to the discharged oriñce 58. Thus, the flock laden air enters the nozzle head 58 and discharges from the orifice 58 in a common axial line of ñow. It will be apparent to those skilled in the art 30 that if alll the air introduced into the tank es therefrom through the dome 49 and from internally threaded, perforated boss 48 which . caped the dome to and out of the discharge nozzle 53, receives the threaded lower end of an elongated the velocity of the escaping air would bear a direct relationship to the air pressure inside the 35 tank. But the flock used in' coating the work dome 49 provided with an internal frusto-conical passage 55 the larger base of which is at the 35 bottom. Adjacent its upper end the exterior of the dome 49 is reduced to form a vertical cylin drical neck 5I and a horizontal shoulder 52. Projecting laterally from the neck 5I is a short screw 53 which enters an angular slot 54 formed varies widely in kind, quality, iineness, weight, and length of ñbre. used in handling another type of flock. 40 in one end of a goose-neck 55 which fits over the neck 5I and seats on the shoulder 52. The permitting »the ready coupling and _uncoupling in handling cotton ilock, the rayon flock, due 45 to its weight, would drop out of suspension and clog the conduit extending from the tank to the discharge nozzle. In order to avoid the necessity of relying solely of the goose-neck 55 to and from the dome 49. Th'e other end of the goose-neck 55 receives one end of a flexible conduit 55, (Figs. 1 and 6), the other end of which fits over one end of a goose-neck 51. The other end of the goose-neck on the variation of the pressure lof the air in 51 is coupled detachably to a nozzle head 58 50 in a manner similar to the coupling between the dome 49 and the goose-neck 55. The ñock laden air flows out of the chamber 41 into the conduit 55. The purpose of the dome 45 is to reduce gradually the size of the 55 flock laden air stream‘as itl flows through the dome 49 into the flexible conduit 55. The pur pose of the goose-neck 51 is to direct the flow of the ñock laden air axially into a cylindrical passage 59 formed in the nozzle head 55. From 60 the passage 59 the flock laden air flows into a A larger passage 55 terminating on the front face , _ofthe nozzle head 55. - The 4front face ofthe nozzle head 55 ispro vided with avtransverse annular seat 5I and 65 a cylindrical seat 52. Rotatably mounted on the > 'cylindrical seat 52 is a nozzle 53 the rear end For instance, if an Aattempt were made to withdraw rayon‘- flock from the tank and apply it to a surface rusing the same air current as that used screw 53 and slot 54 constitute a bayonet-joint 45 In consequence a rate of air flow velocity used in handling one type of ñock would be inadequate or detrimental when 40 troduced into the tank to obtain different rates -of air flow velocity in the conduit in which the flock is conducted to the point of application to meet the different operation conditions, the illustrated embodiment ofthe present invention is provided with a vent whereby a portion of the air within the tank may be allowed to escape 55 directly to the atmosphere and thus reduce the l rate of air iiow velocity in the conduit in which the flock is conducted to the point of use. A 60 valve is provided so that the size of the vent opening may be varied to provide a delicate con trol of the rate of air flow velocity in the „air which entrains the flock and carries lt to the point of application and thus adapt the appa 65 ratus to the easy, reliable and economical han >`dling of all types of flock. The floor» 42 (Fig. 5) is provided with a- ver face 54 of which engages thetransverse seat 5I. . tical, internal peripheral wall 11 having the same The nozzle 53 is coupled to the nozzle’head 55 by an internally threaded ring 55 provided with height as the wall 43 and spaced therefrom lto 70 form the .side wall of the passage 45 for a por 70 an inturned flange, 55 arranged to engage a pe tion of its extent. One end ofthe wall 11 ter ripheral shoulder 51 formed on the nozzle 53.. >ininates at the outlet 45. The other end of the The nozzle 53 is provided with a central dis wall 11 terminates at a point spaced from the end charge oriñce 55 formed inthe common base 59 of the wall 45. For the major portion of its 75 75 of’an internal frusto-conlcalpassase 15 and an 2,105,275 . length the wan A11- is" concentric >to the wan as , but is provided with a straight portion 18 which is directed at the’ juncturebetween the walls 43 - and 46. The wall 11, the portion .of the iioor 42 enclosed thereby, and the cover I2, form a central « filter chamber 19. The casting 4| is bolted to the bottom of the cover I2 by three bolts 88, two of which pass through the wall 43. and the third one of which passes through the wall 11. = 10 -Directly over the filter chamber 19 the cover I 2 is provided with a cylindrical-opening 8| (Figs. 4 and 10) and three screws 82. (Figs. 8 and 9). the heads 83 of which are elevated above the cover I2. , Mounted on the screws 82 and engaged with the exposed face of the cover I2 is a triangular gasket 84 (Figs. 9 and 10) having an opening 85 smaller than the opening 8|`but concentric there with.' Mounted on the screws 82 and engaged with the exposed face of the gasket 84 is a tri 20 angular plate 86 having an opening 81 smaller than the opening 85 but concentric' therewith. >The opening 81 may be closed or varied in size by a gate valve 88 one end of which is pivoted on one of the screws 82 and the other end_of which 25 is provided with an operating finger piece 89 mov v able between the other two screws 82. vWhen the iìnger piece 89 engages one screw 82 as in Fig. . 8, the opening 81 isclosed by the gate -valve 88. When the ilnger plece- 89 engages the4 other 30 Ascrew 82 the opening 81 is uncovered by >the gate valve 88. 'I'he finger piece 99 may be moved into a position intermediate the two adjacent screws 82 to vary the effective size of the opening 81. 'I'he finger piece 89 travels beneath a strap 98 loosely mounted on the two adjacent screws 82. 'I‘he three Screws 82 loosely support a cap 9|. In order to force the cap 9| against the heads 83, the gasket 84 against the cover I2, and the gate valve 88 against the plate 88, the screws 82 are 40 each provided with a coiled spring 92 one of which is interposed between the -pivoted endI of the gate . valve 88 and the cap 9| and the other-two of which are interposed between the strap 98 and the cap 9|. y , When the gate valve 88 is positioned to close -the opening 81 all of the air introduced into the tank || in escaping to the atmosphere must pass under its maximum rate of velocity through the discharge nozzle 63. When the gate valve 88 ls . ' ` 3 i chamber 19 wherein the flock is _ill/tered out of the entraining air seeking to escape from the tank || through the vent 81 either by falling out of the air stream or by being stopped by the screen 93. LIn any event the ñock laden air vented _out UI of the tank 'II through the vent 81 leaves the flock behind in the ñlter chamber. ‘ As so vfar described >the air introduced into the v:Ilockthrough the oriñces 25, 3| and 38 stirs up and swirls the flock in the tank II in a clockwise 10 direction, (Fig. 5) ,~ separates >ñoating particles therefrom'and then, under velocity, carries the floating particles in 'a dense cloud into the lat eral passage v48. Some of these particles col lected in the passage 48 are discharged from the nozzle 63 by the entraining action of the air dur ing its'escape from the tank I| by way of the ' chamber 41. Some of the particles collected in the passage 48, instead ot passing out of the tank II to the nozzle 63, are carried by the entraining air into the iìlter chamber 18. These last named particles are removed from the air by the screen 93 .and either accumulate upon the screen or fall upon the iioor of the illter chamber. Still others of the particles of flock collected in the passage 48A are carriedl by the entraining air ‘ through the outlet 45 back into the tank ||.« In order to break up any lumps of flock which may be carried out of the tank II the passage 48 may be 4provided with a coarse screen 96 (Figs. - 5, 6, and '1). The screen 86 extends vertically from the floor 42 to the bottom of the cover I2 and laterally from the wall 43 to the wall 11. The screen 96 is soldered and braced to one end of a plate 91 the other end of which is bent to form a clip 98 embracing the edge of the ñoor 42. In order to stir up the flock collected on the floor of the passage 48> and send the stirred-up ñock into the air stream ñowing therethrough, _thereby to intensify the density of the flock laden air seeking an outlet from the tank I I, to prevent `the flock from accumulating and> plugging the passage 48, and to drive lumpy ñock against the screen '86, the main air line I8 is provided .above 40 >the cover I2 with a cross 99 (Figs. l, 4, and 6) to one outlet of which a branch air line |88 is con nected. . 'I'he branch |88 passes through an in ternally threaded, perforated boss |8| on the cover I2 into the tank II where the branch |88 positioned to uncover the opening 81 a portion of >is provided with an elbow |82 (Figs. 6 and 7) the air introduced into the tank is vented to the . 'which receives a nozzle |88 having an orifice |84 atmosphere through the opening. In conse 4 discharging directly into the passage 48.A With quence the ñock laden air flows under its mini this construction the door ofthe passage 48 and mum velocity to and out of the discharge nozzle the jet of air discharged by the ermee |04 mio the _ ' 63. By varying the size of the opening 81 from inlet 44 of the passage 48 not only constitute an its minimum` to its maximum, or any effective _intensiñer for intensifying the ñock laden air size therebetween, the rate of velocity at which flowing from the tank I I through the passage 48, the :Hock laden >air is discharged from theltank but also -act; to prevent it from becoming choked || to and out 'of the discharge nozzle 63 may be by an. accumulation o1' flock. ,As indicated in GO varied to meet theexisting operation condition. Fig. 5 the elbow |82 may be rotated to vary the When a portion of the air introduced into the direction at which the jet of_ air is discharged (il) A` y -tank II is- allowed to escape into the atmosphere through the vent 81 it is desirable to ñlter the from the oriñce |84. f ` In order to prevent the‘ilock collected on the ñock out of the air before it escapes. ` ' 'I'he ñock is filtered out of theair escaping from f screen ’93 or the floor of the ñlter chamber 19 from _ the tank IL through the vent 81 by a screen 93 - stir the flock up in the ñlter chamber 19, whirl the (Figs. 4 and A10) supportedfrom a frame 94 in terposed between the screen and the heads of accumulating sumciently to choke the vent 81, to stirred-up flock into` the' flock concentrating chamber 41, and thereby intensify the density of ‘ screws 95 which secure the' frame and the screen ' the ñock laden air escaping from the chamber 41 to the bottom `of the cover I2. With this _con struction that portion of the flock laden air whichenters the passage 48 'from the tank i I and which ' s to the nozzle 63, another outlet of the cross 99 ' (Fig. 1) is connected to a branch air line |85 which passes into the tank Il through an in docs‘not enter 'the flock concentrating chamber i ternally threaded, perforated boss |88 (Figs. 4 41 `and does not pass back.y into the tank I I through »and 6). Within the tank II the branch I85’is the outlet 45 of .the passageg48, enters the ñlter ` lprovided with an elbow |81 which receives a noz 4 . , 2,105,275 zle |08 located in the filter chamber 19 adjacent the junction between the outlet 45 and the verti cal wall 11, and provided with an oriñce |09 (Fig. 5). With this construction the jet of air dis Ui charged into the filter chamber 19 through the the groove |20 is a horizontal passage | 2| formed in the nozzle head 88. The passage |2| communicates with a vertical passage |22 which communicates in turn with a horizontal passage |28. Air is delivered to the Ul passage |23 through a short pipe |24 (Fig. 1) cou pled to the front end of a metallic body |25 which orifice |09 stirs up the ñock in the chamber, whirls the flock therein in a clockwise direction, (Fig. 5), ' has integral therewith a handle or grip |26. 'I'he separates floating particles from- the whirling flock, and carries the floating flock by the en air under. pressure is preferably introduced into the body portion |25 through the grip |26 which training and centrifugal actions of the air dis is connected to one end of an air hose |21 through charged from the orifice |09 along the wall 11, a. coupling |28. The other end of the air hose |21 from the straight portion' 18 of which the ñock laden air flows towards the flock concentrating is‘connected to >one outlet of a T |29 carried by main air linelll. ~ chamber 41. Some of the flock discharged from theThe passage ofthe air through the body por the illter chamber 19 passes back into the tank l l ' tion |25 is controlled by a normally closed main through the outlet 45, but >most of it is carried air valve (not shown) the stem |290 of which is into the flock concentrating chamber 41 in which arranged to be engaged by a trigger |30, at the it is whirled and from which it is discharged to will of the operative, to depress the stem |290 the nozzle 63. The filter chamber 19 and the jet and thus open the main air valve. The upper end of air discharged from the orifice >|09 not only of the trigger |30 is provided with a yoke |3I constitute an intensifier for intensifying the flock which embraces the body portion |25 to which laden air passing out of the chamber 41 to the the yoke is secured in a pivotal manner. ' nozzle 63, but also act to prevent the ventoutlet The .volume of air discharged through the ori 81 from becoming choked by an accumulation of fices ||1 is controlled by'a spindle |32 (Fig. 2) flock in the filter chamber 19. ' ‘ the point of which has a valve seat engagement From an inspection of Fig. 5 it is apparent that with the wall of the vertical passage |22 just be at least some of the flock in its travel from the low its point of confluence with the passage |23. tank | I to the nozzle 63 by way of the chamber 41 The spindle |32 is threaded into the nozzle head is subjected to three distinct-whirls,-the whirl 58 and is provided with a milled head |33 to fa 30 in' the tank || being the greatest in extent, the cilitate its adjustment. Colled about the spindle whirl inthe chamber 41 being the least in ex |32 and interposed between the nozzle head and LJ Li tent, and the whirl in the filter chamber 19 being intermediate in extent, and that the apparatus is designed to take advantage of the centrifugal ac the head |33 is a spring |34 acting to hold the tion developed during each whirl. The air which trolled: by the spindle |32. When' the spindle |32 spindle |32 in any desired position of adjustment. The shape of the discharged material is con flows to the nozzle 63 by way of the chamber 41 is delivered ~from the orifices 25, 3|, 38, |04 and |09. The air from the orifices 25, 3| and-38 be is engaged with its valve seat the target formed by the discharged material is circular. By ma nipulating the spindle |32 the shape of the target formed by the discharged material may be varied 40 from a» circle to an ellipse._ In the showing of Fig. 2 the orifices are arranged vertically, thus providing for the flattening of the discharged material into a horizontally arranged fan. By loosening the ring65 the nozzle 63 may be angu 45 larly adjusted to obtain the fan in any desired plane. _~ To operate the apparatus the tank || is filled tol within not less than six inches from its top with clean, dry flock, and the cover I2 secured in place. With the valve ||0 closed andthe valves ||2 and | I5 opened, a main alr valve- |35 (Fig. l) is opened to admit air under the pressure deter comes laden with flock in the tank ||. The air 40 from the orifice |04 becomes laden lwith flock in the passage 40. The air from the orifice |09 be comes laden with flock in the filter chamber 19. All the flock laden air from the three different _ sources which pass into the chamber 41 unite 45 therein to produce a discharge of concentrated flock from the nozzle 63. In order to vary the pressure of the air intro duced into the tank, the passage 40 and the ñlter chamber 19, as may be .desired to meet> the differ ent operating conditions and to obtain the desired ' volume of flock with the particular type thereof being handled, the three branch air lines 2|, |00 and |05 are provided >with control valves. The mined by the pressure reducing valve I9 into the apparatus from the main air line I8. The valves air flowing through the branch 2l is controlled by a valve ||0, (Figs. 1 and 4). The pressure in the air delivered to the'branch 2| through the valve ||2 and ||5 are adjusted to obtain differential f. ||0 is registered on a gage ||I connected to the top outlet in the T 20. The air flowing through the branch |00 is controlled by a -valve I|2 (Figs 1 and 6). The pressure in the branch |00 is reg istered on a gage |-|3 fitted into a T | I4. The air flowing through the branch |05 is controlled and its pressure is registered by a valve ||5 and a gage’l I6, respectively, (Fig. 1). 65 ' . In order that, the flock discharged axially-of t the nozzle discharge orifice 68 may be ñattened, the walls of the frusto-conical recess 1| are pro vided wìth a pair of diametrically opposite ori fices I I1 (Fig. 2) lthrough which air is discharged supplementally upon the main discharge. Each orifice | I1 is formed in the »f-ront end of a passage ||8 which communicates through a passage ||9 with an annular groove |20 formed in the rear 75 end‘face of the nozzle 63. Communicating with pressures in the branches l|00 and |05, respective ly, in accordance with the kind of flock with which the tank || is filled. Assuming that the main airline pressure is over sixty pounds per square inch, for instance, the pressure of the air introduced into the tank through the branch |00 should be varied from fifteen to forty-five pounds ' per square. inch and the pressure of air introduced into the tank through the branch |05 should be 65 varied from five to forty-uve poundsper square inch depending upon the type of flock in the tank.“ The gate valve 88 is adjusted to obtain the proper sized opening for the vent 81 and thus determine the rate of airflow velocity through the conduit connecting the dome 49 and the nozzle head 58. For‘cotton flock the vent 81 should be substan tially uncovered. For rayon ñock the vent 81 should be substantially closed. , The effective size of the vent'81 should be varied to accommodate 7n Íaioaavc the apparatus to the particular type of flock em > ployed. Then the valve ||0 which controls 'the~ volume of the flock laden air discharged is opened gradually until a pressure substantially less than ñve pounds per square inch is indicated on the gage i l l, whereupon the flock is discharged from ' the nozzle 63 in a turbid condition. As the tank empties, the va1ves'88, |10, ||2 and H5 may- be .l re-adjusted to maintain the desired character of 10 flock discharge. _ v ' < To apply the Hock, the work is coated :with `a suitable adhesive. The' handle |26 of the appa ratus is engaged in the palm of the operative’s - hand with the index and adjacent fingers thereof engagedwith the trigger |30. .. By manipulating duit 56 the oppositefends of a wire |36 are con nected to the goose-necks v55 and 51,'the tank || being grounded by a wire |31 (Fig.- 6) .` - > Nothing herein explained is to be interpreted as limiting the various features of the presentin 5 ventlon in the scope of its application to use'in connection with the particular'apparatus or the `particular mode of operation or both selected for purposes of illustration _and explanation. -While the particulars of construction herein set forth 10 Vare well suited toone mechanical form of the invention and to the use to which it is put, it is not limited to this use. nor to these details of construction, norto the conjoint use of all its features, nor is it to be understood that these par the gun body |25y the ñock ñowing out of the ' ticulars are essential since they may be modified 15 nozzle 631s applied to the surface of the coated work, care being taken to drive the ñock into 'the adhesive of the previously coated Work. In order 20 to prevent `the formation of ñock mounds on the lwork the operative, after each ñock applying op eration, directs the i'lock slantwise at the work- within the skill of the artisan without departing - from the true .scope of the actual invention, char acterizing features of which are set forth in the following claim by the intentional use of generic terms and expressions inclusive of various modi iìcations. - - with the result that the `excess ñock is blown What is claimed as new, is: therefrom and subsequently recovered for re-use. An apparatus for applying flock having, in com 25 Usually it is necessary to apply successive coats of bination, a nozzle, a. vcontainer for the flock, an flock to the adhesively coated work in order-.to outlet from the container in communication withl 25 obtain an even surface having a velvety or cloth V the nozzle, means _for introducing air under pres like appearance. Whenthe flock applying opera sure into the container and discharging the air tion has been completed the main valve |35 may against the iiock to impart movement thereto, be closed and the trigger |30 may be operated to Y mieans for varying the air pressure, and separate utilize the supplemental air jets issuing from the meansfor varying the velocity _of the air `flow 30 y orifices ‘I I1 for dusting oiï the excess flock. through the outlet. In order to dissipate the statica] electricity gen ' , WAYNE B. THOMPSON. erated bythe passage of flock through the con- '