US2589531A - Paint loosening and scraping device - Google Patents

Description

March 18, 1952 v. E. BROOKS 2,589,531

PAINT LOOSENING AND SCRAPING DEVICE Filed Aug. 1, 1949 l8 Inventor Vern E. Brooks By an? Patented Mar. 18, 1952 UNITED STATES PATENT OFFICE PAINT LOOSENING AND SCRAPING DEVICE Vern E. Brooks, Fort Worth, Tex.

Application August 1, 1949, Serial No. 107,905

4 Claims. 1

The present invention relates to certain new and useful improvements in manually usable improvements and devices employable by painters and others for loosening and scraping paint, as a step preparatory to repainting the thus conditioned surface.

More specifically, the invention has to do with a simple and easily usable device which takes the form of a so-called screen pad and'which functions effectively in removing paint blisters, scales and corrosion from outside painted surfaces on houses, barns, fences, tanks and which, in addition, is satisfactorily employable to remove rust scales from pipes, farm implements and the like.

In carrying out the principles of the invention I provide a novel arrangement of two or more sheets or pieces of screen wire and assemble these on a handle-equipped base or form so that the two pieces are in superimposed relationship and so that, when in use, they rub frictionally against each other to sear and cut blisters and hanging paint and are substantially self-cleanmg.

In reducing to practice the preferred embodiment of the invention I have provided a reliable and inexpensive screen pad which is sufliciently durable that it does not tear easily on wood splinters, nail heads or other contacted objects. It is sufficiently self-cleaning in action that it does not clog with old paint and dirt while in use and is superior to steel bristled brushes and similar scrapers in that it does not scratch and mutilate wood surfaces.

Briefly, I attain the wanted ends through the instrumentality of a sheet metal form which is bent to provide a receiver and retainer for a handle-forming block, which provides a backing plate for the plurality of plies of screen wire and also serves to anchor the edge portions of the wire while, at the same time, allows said plies of wire to be replaced when unduly worn.

Other objectives will be clear from the succeeding description and the accompanying illustrative drawings,

In the drawings, wherein like numerals are employed to designate like parts throughout the views:

Figure 1 is a perspective view of a manually usable paint loosening and scraping device constructed in accordance with the principles of the present invention;

Figure 2 is a central cross-section taken approximately on the plane of the line 2--2 of Figure 1, looking in the direction of the arrows;

Figure 3 is a plan view. on a small scale, of the is constructed; and

Figure 4 is a plan view of one of the sheets of screen wire.

Referring now to the drawings by reference numerals and lead lines it will be seen that the several main parts comprise a wooden or equivalent block 6, a receiver and holder 1 therefor and two plies of screen wire, one of which is shown in Figure 4 and denoted by the numeral 8.

Reference being had to Figure 3 which shows the blank of metal, this is stamped out to provide a main rectangular plate or body portion 9 which is essentially a backing plate for the screen wire means. The marginal edge portions have two outstanding longitudinal main flanges II and i2 and the transverse end portions have outstanding narrower main flanges l3 and I4. These flanges are defined by the fold lines l5 and 06, respectively. Flanges II and I2 have additional fold lines ll-ll and these, in turn, define auxiliary flanges l 8l8. The end flanges l3 and I4 have fold lines I9|9 defining auxiliary flanges 202ll. Flanges ll, [2, l3 and I4 are bent up at right angles to the main body plate 9 and thus define a pan-like'receptacle. This receptacle serves as a receiver and holder for the wooden block =6 and the block is fastened therein by punching the metal and embedding the indentations, as at 10, into the wood. The remaining flanges I8 and 20 are down-bent on the fold lines I1 and. I9 and these serve as adapters and retainers for the upbent edge portions 2| and 22 of the inner and outer screens 23 and 24 the adjacent transverse ends of the flanges i8 and 20 are spaced an appreciable distance apart to provide clearance spaces. In Figure 4, I have shown a plan view of the inner screen or blank 23 with its bendable retaining flanges 22. In practice the screens are superimposed upon each other and are backed up and stretched and held in position by the form or base plate 9. The flanges 2| and 22 of the respective screens are then bent up at right angles as shown in Figure 2 and are retained by down-bent flanges |8l8 and 20-20 (Figure 1). The tension of the screen wire when thus bent and assembled in said flanges holds itself in place without the need of additional clamps or bands.

It will be seen that the sheet metal unit I is, therefore, bent up into pan-like formand constitutes a receiver and holder for the wooden block and the wooden block, in turn, serves as a handle. The plate portion 9 also serves as a solid backing for the main stretches of the screens 23 and 24. The exterior downbent flanges 18-18 and 20-20 serve as retainers for the bent edges or flanges 2i and 22 of the respective screens. It follows that I, therefore, produce a novel socalled screen pad mounted on a sheet metal backing or form, said form carrying a wooden block serving as a handle.

Since the two screens are resilient and relatively loose in respect to each other and also in respect to the backing plate 9 they are allowed to shift and rub against each other with the result that common sheets or pieces of screen wire (14 x 18) mesh produce the desired frictional,

cutting and surface cleaning requirements. More importantly, however, the rubbing of screen against screen achieves the aforementioned shearing of the cuttings which would otherwise lodge between the screens and reduces clogging of the meshes to a minimum.

It is thought that persons skilled in the art to invention, what is upstanding longitudinal andtransverse-flanges,

theilupper edges of said flanges being; provided with return'bends :carrying. downwardly, directed screenwire accommodatingv and retaining flanges; the latter being narrower than said first named, flanges .and having edge-portions terminating on a: plane above saidbacking plate; substantiallyqduplicate sheets of screen wire superimposed one'on the other and having upwardly directed longitudinal and transverse marginal flanges contacting said first named flanges ;and frictionally clamped against said first named flanges by said second named flanges, said sheets being relatively loose in respect to each other and also'in respect to thebacking .plateand having their coacting meshes in relatively shiftable rubbing contact toshear and-reduce adhering cuttings and to free the latter from saidmeshesto render the-screens virtually self-cleaning, and handle means for said backing plate.

2:" The structure specified -in claimil, wherein said handle means is in the form of a-block.with its horiz'ontalbottom-surface in contact with vvthe entire upper surface of the backing plate .and' its marginal-vertical surfaceszin contact with :said first-named flanges; the upper portion of. said bldck projecting above, said first named flanges and providinga handgrip.

3. The structure specified in claim 2, wherein said longitudinal flanges are each provided with a centrally positioned inwardly projecting detent engaging coacting surfaces of said block to retain the same in its operative position.

4. A manually usable paint and scale loosening and scraping device comprising a substantially rectangular flat rigid backing plate having upstanding longitudinal and transverse flanges, said longitudinal flanges each-having a centrally positioned in'ivardly projecting detent, the upper edges of said flanges being provided With return bends carrying downwardly directed screen wire accommodating and retaining flanges and having edge portions terminating on a plane above said backing'plate, the adjacent transverse ends of said second-named flanges being spaced appreciable distances apart to provide unobstructed clearance spaces, substantially duplicate sheets of screen wire superimposed one on the other and each 1 having upwardly directed longitudinal and transverse marginal flanges contacting said .firstnamed-flanges on said backing plateands-frictionally clamped against said'first-namedflanges on w the backing plate by K said second-named flanges on said backing plate, said-sheets being relatively loose in respect to each other andalso in respect 'to the backing .plate and having their coacting-meshes in relatively shiftable rubbing contact -to shear and reduce adhering-cuttings and to free the latter from said meshes to-render the screens" virtually self-cleaning,- and a block with its horizontal-bottom surface in contact with the entireupper surface of "said backing plate and its marginal vertical surfaces in contact with said first-named flanges on said back-ing plate, the upper portion of: said rblock projecting above said first-named flanges providing .a handgrip, each detent on said longitudinal flanges being in operativeengagement withthe coacting surfaces of said block.-

VERN ECBROOKSL REFERENCES" CITED" The 'following'references are of'record in the file :of this patent:

UNITED. STATES .1 PATENTS Number Name. 7 Date 817,766 Hames" g Apr. 1'7,v 1906 1,179,297 Fischer Apr. 11,1916 1,529,699 Cornell .Mar. 17, 1925 1,616,315" Frenchr Feb; 1, 1927 1,642,857 Holt'schneider" .Sept; 20, 1927 1,679,392" Applin Aug:7,' 1928 2,029,426 Kingdon' Feb; 4, 1936 2,156,494; Goodloe' May'2; 1939 2,360,778" Lander Oct, 17, 1944 2,433,695 Hoffman" Dec; 30, 194?

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