US988243A - Process of coating objects with subdivided material. - Google Patents

Description

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A 'fifa/Mm Patented Mar. 28, 1911.

- UNITED srATEs'- PATENT oEEIoE.

IEANILI F. BRADLEY, 0F CHICAGO, ILLINOIS, ASSIGNQR BRADLEY AND VROQMA'N l COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

PROCESS OF CQATING OBJECTS WITH SUBDIVIDE'D MATERIAL.

To all whom it may concern:

Be it known that I, FRANKLrN F. BRAD- LEY, citizen of the United States, residing at Chicago, inthe countyF of Cook and StateA of Illinois, have invented a certain new and .useful Improvement in Processes of Coating Objects with Subdivided Material, of which the following is a full, clear, concise, and eX- act description, reference being had to the accompan ing drawings, forming a part 'of this speci cation.' Y

My invention relates to a process of coating objectsv with subdivided material and has for its purpose the provision of a novelv process whereby objects possessing variously shaped and disposed surfaces may quickly` and effectively .be coated with subdivided material.

My invention isof particular lservice in effecting the applicationl of bronze powder to metal bedstead parts, though the inventionv is not to be restricted to such use. Hitherto bronze' powder has been applied to meta-l bedstead parts by means of ordinary 4bristle or hair brushes, a method that required much time and which was not always accompanied by satisfactory results.

. In practicing my invention I employ mov-v ing air that is laden with the subdivided material and so locate the object to be coated and so 'direct the air that is to convey the material to the'object to be coated that all exposed parts of the object which have previously been coated-with suitable adhesive material may havethe subdivided material ,applied thereto in one'operation 'which may be veryv speedy, and by which results equal and superior to the hand method be securedl .As my invention isA preferably ypracticedl lthe objectyto be coated, which Ahas first had suitable adhesive material such as a thin wet varnish applied to those partsbthat are to receive the: coating, is placed in coperative relation with a deflecting surface so as to have space intervene between the object and said surface, the vair ,laden with the'snbdivided material being caused to move toward the 'object Iand the deflecting surface inV a manner to cause the air that strikes the deiec'ting surface to move toward the object, whereby all exposed parts having adhesive material thereon are coated with the subdivided material. The detlecting surface 5 constitutes the preferred means for causing Specification of Letters :Patentl tially caused to move.

Patented Mar. 2s, 1911.

Application led February 1"?, 1911. Serial No. 609,204.

' the air to flow toward the object in a direc* tion opposite to that in which the air is ini- Further to insure quickness of results, particularly where the objects cover considerable area, the locality `from which the air is .initially directed upon the obyectsris changed,vto change the di1 ec tion in which the air is caused to liow.

Reference is made to my co-pending application for United States Letters Patent Serial No. 614,001, filed March 13, 1911,

which, in `some respects, more broadly'relates to a process of coating objects-with. subdivided material. I

I will explain my invention more fully in connection with a description of the apparatus'shown in the accompanying drawing and by which the process of my invention may readily be practiced, though I do not-limit myself to the apparatus illustrated.

In the drawing Figure 1 vis an elevation, partly in section, of a machine that may be used; Fig. 2 is a sectional view in the direction of arrows 2 2 in Fig. 1; Fig. 3 is a sectional view in the direction of arrows .3 3

in Fig. 1.

Like -)arts are indicated by similarv characters ofrcference throughout the different figures.

The receptacle t is shaped suitably to the. objects to be received therein, the construction illustrated being well'adapted to re- I ceive metal bedstead parts that are moved into and out of the receptacle uponv the 'Y truck b. through the door-wa ic having' a door c1, the bedstead part al bemg illustrated within the receptacle. vA. section c of suitable piping leads from the air-exit sideof the receptacle to a power driven lfan or blower f,'.the complemental section g of the piping leading from the blower to the air entrance side of the receptaple located opposite the air exit side, thel pipe section g having multipled branches l1, through which air is admitted to the interior of the receptacle in a stream or streams. The powder or subdividedunaterial, such as bronze powder, is admitted to the piping, preferably through the funnel 2'.. The powder is distributed throughout the flowing column of air in the piping and is conveyed .by the moving air to the multipled discharge ends Z m ofthe piping air to the structure. Lbe coated are large, the direction of the air cession whereby the locality from which i' the air is initially directed upon the object orv where the air has fullest flow may bel changed to change the-direction of-'zt'he'aair where it Hows most fully. l I alsov desir-ably multiple the air exit openings and distribute' them' over an area` that preferably exceeds the largest exposed surface upon thestrucf ture d that is to receive the powder.' These multipled air exit or discharge openings are desirably constituted of perforations p inl the screen plate g preferably constituting la wall of the receptacle a. The aggregate area of these screen openings is preferably not greater than the area of a right cross section through the portion of the pipe e that is uniform in diameter, the escaping air passing through all of the openings p in seeking paths of least resistance. YThe end of the pipe section e adjacent to the screen Q flares toward said screen and embraces its borders.

In practicing my invention with the apparatus described, the object cl that is to be" -coated with the subdivided material has those exposed surfaces which areto receive the coating covered with a suitable adhesive -material such as wet varnish.V This object is then placed withinthe receptacle so as to have spaces or clearance intervene between the receptacle walls and the object, `the obj'ect being located between the pipe ends lm and the receptacle wall g. Air is then forced to move toward the object d and the receptacle wall g rbefore which the object has lbeen placed, this receptacle wall affording a deflecting surface against which the air strikes after it has passed toward and by the structure d and which deecting surface returns Where tlie objects to in moving toward the object4 is modified by the manipulation of the valves n and 0. Space intervening between the plate 'g and the object to be coated, air is vpermittedv -to be directed around and toward the object in a general movement (the walls of the receptacle takin part in defining such oreneral movement afforded by the receptacle wall g and other walls of the receptacle cause the air also to move in eddies and minor currents whereby the material with which the air'v is laden is conveyed to exposed partslof the object'that would not be as well reached otherwise.

While I have used the term air throughout the specification and claims, it is obvious that any inert elastic Huid may be used, and I use the term air in the claims in this broad sense.

apparatus for coating objects with subdi- The ,deiecting sur aceY videdV material asffollows: Serial No. 543,215, filed February 11, 1910; Serial No. 550,115, filed March 18, 1910; Serial. No. 569,428,

filed June 29, 1910; Serial No. 588,7 3 0, filed I October 24, 1910; Serial'No. 588,731, led October 24, 1910; Serial No. 603,251, filed .Janiiary'lS, 1911; Serial No. 603,726, filed January 20, 1911; and Serial No. 609,203, filed February 17, 1,911. v

Vhile I have herein specifically described the preferred Way of practicing my invention, Ido not wish to be limited thereto nor to the apparatus which I have shown with which to practice the method of my invention.

Y Having thusL described my invention, I claim as new and desire to secure-by Letters Patent'the following 1. The process of coating objects with subdividedmaterial which consists in placing adhesive material upon the object to be coated;` placing the object in association with a deflecting surface so as vto have space intervene between saidy object and surface; and causing airladen with the-subdivided material with which the object is to be coated to move toward -the, object and thereafter toward the delecting surface in a manner to cause material-laden air that strikes the deflecting surface to move toward the object,l whereby exposed parts having adhesive material thereon are coated with subdivided material.

A 2. The process of coating objects with subdivided material which consists in placing adhesive material upon the object to be coated; placing the object in association with a deflecting surface so as to have space intervene between said objectI and surface; causing airladen with the subdivided material with which the object is 'to be coated to move toward the object and thereaftertovward the delecting surface in a manner to cause material-laden air that strikes the defleeting surface to move toward the object; and changing the locality from which the air is initially directed upon the object,

whereby exposed parts havin adhesive material thereon are coated withv subdivided Y material. A v 3. The .process of coating objects with subdivided `material which consists in placing adhesive material uponthe object to be coated; placing the object in association with a deflecting surface so as. to have s ace Vintervene between said object and sur ace;

and causin air laden with the subdivided material withawhich the object is to be coated to move in a stream toward the' object and thereafter' toward the deflecting surface in a manner to cause material-laden air that strikes the delecting surface to move toward the object, whereby exposed I have led applications for patents upon parts having adhesive material thereon are coated with subdivided material.' l

E. L. WHITE.

L1:.TheV process of coating objects with 7. The process ofv coating objects with 45 subdivided material which consists in placsubdivided material which consists in placing adhesive material upon'the object to be ing adhesive material u on the object to be coated; placing the object in' association coated; placing the 'object Within a're-cep- 5 With a deectingsurface so as to have space tacle so'as to be substantially clear of the intervene between said object and surface; receptacle walls; causing air laden with the 50 causing air laden withJthe subdivided masubdivided material to move'within the reterial` with which the object is to be coated ceptacle toward the object andreceptacle to move in a stream toward the object and walls; and changing the locality Where the 1-0 thereafter toward' the deflecting surface in air has fullest flow, whereby parts of the oba manner to causev material-laden air that ject that are provided with the adhesive ma- 55 strikes the delecting surface to move vtoward te'rial are coated with the subdivided mat-he object; and changing the locality from terial. which the air is initially directed upon the 8. The process of coating objects with object, whereby exposed parts having adsubdivided material which consists in plachesive material thereon are coated with subing adhesive material upon the object to be 60 divided material. coated; causing air laden with the 'subdi 5. The process of coating objects with vided material with which the object is to subdivided material which consists in placbe coated to move toward the object to coat V ing adhesive material upon the object to be portions thereof with subdivided materials;

coated; placing the object in association andv causing material-laden air that has 65 with a delecting surface so as to have space passed bythe object to move towardl the obintervene between said objectA and surface; ject, further to coat the object with subdicausing air laden with the subdivided mavided material. y terial with which the object is to be coatedl 9. The process of coating objects with to move in a stream toward the object and subdivided material which consists in plac- 7C thereafter toward the deflecting surface in ing adhesive material upon l:the object to be a manner to cause material-laden air that coated; causing air laden with the subdistrikes the deflecting surface to move toward vided material with which the object is to the object; and changing the direction in be coated to move toward the object to coat which the air stream is caused to flow, whereportions thereof With subdivided materials; 75 by exposed parts having adhesive material vcausing material-laden air that has passed thereon are coated withsubdivided material. by the object to' move toward the object, fur- 6. .The process of coating objects with ther to coat the object with subdivided masubdlvided material which consistsl in placterial; and changing the place Where the air ing adhesivematerial upon the object to be has fullest flow. A 8O coated; placing the object within a recep- In witness whereof, I hereunto subscribe I tacle so as to be substantlally clear of the remy name this sixteenth day of February cleptaced Walsd; and cailising air laden with A. D., 1911. i 40 tie su ivi e materia to move within the receptacle toward the object, and receptacle l FRANKLIN F BRADLEY' walls whereby parts of the object that are Witnesses: provided with the adhesive material are G. L. CRAGG, coated with the Ysubdivided material.

It is hereby certified that in Letters Patent No. 988,243, granted March 28, 1911,

upon the application of Franklin F. Bradley, of Chicago, Illinois, for an improvement in Processes of Coating Objects with Subdivided Material, errors appear in the printed 'Lgaecification requiring correction as follows: Page 3, line l4l, after the word me' comma should be stricken out; same page, line 42, after the word wallsi'cotnmashould be inserted; same page, lines 64 and 75, the word materials should read material; and` that the said Letters Patent should be read with these cori rections therein 'that the same may conform to the record of the case in the Patent office. i i f Signed and 'sealed-this day of pril, A. D., y1911.

i A ,0. o. B1LLING-s,

Acting Commissioner of Patente.

[sEALr] Correetienls in Letters Patenty No. 988,243.

coated with the Ysubdivided material.

E. L. WHITE.

4.The process of coating objects with 7. The process ofv coating objects with 45 subdivided material which consists in placsubdivided material which consists in placing adhesive material upon'the object to be ing adhesive material u on the object to be coated; placing the object in' association coated; placing the 'object within a'recep- With a deectingsurface so as to have space tacle so'as to be substantially clear of the intervene between said object and surface; receptacle walls; causing air laden with the 50 causing air laden withJthe subdivided masubdivided material to move'within the reterial` with which the object is to be coated ceptacle toward the object andreceptacle to move in a stream toward the object and walls; and changing the locality Where the 1-0 thereafter toward' the deflecting surface in air has fullest flow, whereby parts of the oba manner to causev material-laden air that ject that are provided with the adhesive ma- 55 strikes the delecting surface to move vtoward terial are coated with the subdivided mathe object; and changing the localit-y from terial. which the air is initially directed upon the 8. The process of coating objects with object, whereby exposed parts having adsubdivided material which consists in placliesive material thereon are coated with subing adhesive material upon the object to be 60 divided material. coated; causing air laden with the subdi 5. The process of coating objects with vided material with which the object is to subdivided material which consists in placbe coated to move toward the object to coat V ing adhesive material upon the object to be portions thereof with subdivided materials;

coated; placing the object in association andv causing material-laden air that has 65 with a delecting surf-ace so as to have space passed bythe object to move towardl the obintervene between said objectA and surface; ject, further to coat the object with subdicausing air laden with the subdivided mavided material. y terial with which the object is to be coatedl 9. The process of coating objects with to move in a stream toward the object and subdivided material which consists in plac- 7C thereafter toward the deflecting surface in ing adhesive material upon l:the object to be a manner to cause material-laden air that coated; causing air laden with the subdistrikes the deflecting surface to move toward vided material with which the object is to the object; and changing the direction in be coated to move toward the object to coat which the air stream is caused to How, whereportions thereof with subdivided materials; 75 by exposed parts having adhesive material vcausing material-laden air that has passed thereon are coated withsubdivided material. by the object to' move toward the object, fur- 6. .The process of coating objects with ther to coat the object with subdivided masubdlvided material which consistsl in placterial; and changing the place Where the air ing adhesivematerial upon the object to be has fullest flow. A 8O coated; placing the object within a recep- In witness whereof, I hereunto subscribe I tacle so as to be substantlally clear of the remy name this sixteenth day of February cleptaced walsd; and cailising air laden with A. D., 1911. i 40 tie su ivi e materia to move within the receptacle toward the object, and receptacle i FRANKLIN F BRADLEY' walls whereby parts of the object that are Witnesses: provided with the adhesive material are G. L. CRAGG,

It is hereby certified that in Letters Patent No. 988,243, granted March 28, 1911,

upon the application of Franklin F. Bradley, of Chicago, Illinois, for an improvement in Processes of Coating Objects with Subdivided Material, errors appear in the printed 'Lgaecification requiring correction as follows: Page 3, line l4l, after the word me' comma should be stricken out; same page, line 42, after the word walisacommashould be inserted; same page, lines 64 and 75, the word materials should read material; and` that the said Letters Patent should be read with these cori rections therein 'that the same may conform to the record of the case in the Patent office. i i f Signed and 'sealed-this day of pril, A. D., y1911.

i A ,0. o. B1LLING-s,

Acting Commissioner of Patents.

[sEALi] Correctignls in Letters Patenty No. 988,243.

Corrections in Letters Patent No. 988,243.

l upon the application of Franklin 1". Bradley, of Chicago, Illinois, i in Processes of Coating Objects with Subdivided Material,"

It is hereby certified that in Letters Patent No. 988,243, granted March 28` 1911,

foran improvement errore appear in the printed .@eciication requiring correction as follows: Page 3, line 41. after the word objee -Lne comma should be stricken out; same page, line +2, after the word walls acomma should be inserted; same page, lines 64 and 75,1;he word materiah should read materz'al; and that the said Letters Patent rections therein that the same may conform to the record of the case in the Patent Oce.

Signed and sealed this 25th day of April, A. D., 1911.

should he read with these co1'- C. C. BILLINGS,

Acting Comrmlesz'oner of Paten is.

[SEAL]

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