Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1036439 A
Publication typeGrant
Publication dateAug 20, 1912
Filing dateNov 29, 1910
Priority dateNov 29, 1910
Publication numberUS 1036439 A, US 1036439A, US-A-1036439, US1036439 A, US1036439A
InventorsClark J Brown
Original AssigneeClark J Brown
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Corner guiding screen-frame bracket.
US 1036439 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

0. J. BROWN.-



1,036,439. Patented Aug. 20, 1912 WITNESSES IN VENTOK I W (far/z Jfirawfl/ A i lo rnej rub uiuirnn STATES FATE. NT onrren.

oLAnK J. BROWN, or rnrEnsBUne, VIRGINIA.


Specification of Letters Patent.

Patented Aug. 20, 1912.

Application filed November .29, 1910. Serial No. 594,674.

To all whom it may concern:

Be it known that I, CLARK J. BRowN, a citizen of the United States, and a resident of Petersburg, in the county of Dinwiddie of two frame battens for the purpose of matching the ends at an angle and slidably holding the bracket to a guiding strip to eliminate the use of saw kerfs at the corners, guide grooves and tongues within the edges of the battens.

A further object is to provide a corner bracket especially adapted to be used in connection with the-window screen frames sold in a disjointed or knocked-down condition to be assembled by the purchaser, enabling him to construct a frame-which will be exceedingly rigid at the corners.

A still further object is to providea complete bracket made of a single piece of 'metal including a triangular main securing partwith two triangular auxiliary securing por tions held parallel to said main portion with two intervening parts at right angles to said securing portions, each having two apertured securing strips.

lVith these and other objects in view, the

. present invention consists in the combination and arrangement of parts, as will be hereinafter more fully described and particularly pointed out in the appended claims, it being understood that changes in the specific structure shown and described may be made within the scope of the claims without departing from the spirit of the invention.

In the drawings forming a part of this specification, and in which like numerals of reference indicate similar parts in the several views :Figure 1 shows an elevational View of a window frame with parts broken away united by means of a plurality of brackets embodying my invention. Fig. 2 is a section online 2, 2 of Fig. 1. Fig. 3 is not be inserted into the kerfs.

a section on line 3, 3 of Fig. 1. Fig. 4 is a section on line 4:, 4 of Fig. 1. Fig. 5 shows a perspective view of one of the corner brackets.

In the construction of that class of frames which are sold in a disjointed or knocked-' down condition and used to give support to wire netting including both the sliding and swinging varieties known as window screens I and door screens, it is quite essential that the frame'parts, as well as the method of connecting the same be exceedingly simple so that the frame may be assembled by anyone capable of using a saw or hammer.

In my present invention I provide a corner bracket so constructed that the frame parts will all be battens square in cross section without any saw kerfs, grooves or tongues. Heretofore, where sheet metaleorner brackets have been used, it has been necessary to twice slit each end of each batten to provide a seat-for the wings or plates of the bracket. This slitting or kerfing of the bat-tens at their ends not only weakens the strips at the point where the greatest strength is required, but unless the kerfs run exactly parallel one with the other and are correctly spaced, the bracket wings can- To provide these parallel slits and matching the slits of one batten with those in the other is a task requiring skill in the handling of tools. Further, if the slots are not properly spaced in relation to the thickness of the battens,

grooves and two battens that are plain.

This grooving, as well as the forming of the tongue, as well as the kerfing of the batten ends, requires an operation 1n no way necessary in the use of my clasping corner guiding bracket. In my present invention the battens are of such a thickness that: the brackets can be readily'sp'rung upon the same to be held by means of suitable nailsor screws.

In carrying out the aim of my nventlonl I employ a sheet metal blank which may be round, oval, oblong or square, though the square form preferred. For the sake of ornamentation the edges of the blank are scalloped as is shown in Figs. 1 and The plate is provided with, two sets olfobliquely running incisions, the incisions of each set extending parallel, each set of incisions forming a securing strip or tongue marked 2, 2 and shown. in Fig. As shown the incisions forming the strips 2 are located in prolongation of the incisions forming the strap or tongue 9/, thereby providing the intervening part 3. The blank is then formed to provide the two similar approxi mately triangular securing plates 4; and These portions are held inparallel spaced. relation as shown in Fig. 2 and are aperturcd as are the strips 2, 2 to receive the securing nails or scrcws, (l, by means of which the brackets are secured to the frame.

In Fig. l I have shown a window frame inclndii'ig the top and bottom stilesl and 11, the .vertical stiles l3 and i l and the min die bar 15. As d closed the top stile is secured to the vertical stiles l3 and ll by means of a corner bracket having its securing members t and 5 held in parallel spaced nation, both members i and extending in like directions while their edges overlap lnc edges of the vertical stiles as clearly disclo ed m .h 1g. 1. lhis is an nnpoitant teatu n as the projecting bracket portions serve as guide tlangcs so that the frame may be held to two ordinary square wooden guide battens permitting the frame being raised and lowered. WVhere the corner brackets are used upon swinging or door frames the vertical stiles must be wide enough so that plate 8 ctml'orming to portion 4-. may he secured to the fran :as \villbe understood in referring to Fig. 3. it it is ncecssary "to use :1 mos ba r in order to brace the iramo the intervening part 3 can be provided with an opening- T, shown in Fig. :7, into which stepped tlic lenon or end of the brace bar. :is disclosed each securing portion l, 5, and r. 5' has a straight base edge :a which in imlh forms extends from a common plane. In. one form of brackehthe se- ='uri portiom; extend in like direction ivniic in the other form they extend in up posits direi'rtions in the manner slated.

\Vhere a middle bar as is used I cmploy a specially constructed bracket consist-- ing of a single piece of sheet metal including the triangular main portion 20, the two oppositely positioned intervening parts 21 and 21 which are held at ,rightanglcs to the portion 20. An apertured securing strip '23 and i l extends from each. part 21 and 21, while extending from the parts2l and it are the securing portions 25 and 2(3 of similar outlinc each of an' area approximatcly half that of the main-portion 20. These reduced portions 25 and 26 are'apertur'ed as are the strips 23 and 24 to re ccive suitable nails or screws. The portions 25 and 26 are held parallel to the main portion as is disclosed in Fig. 4. The ends of the triangular portions 20, and 2G ma be bent at right angles to serve as clenci points if desired, as shown in Fig. 4.

It is of course understood that the intervening portions 3 andQl must be ofa width equal to the thickness ot' the frame parts to which the brackets are secured. The intcrvening' parts are further of a length less than the bases, m, of the securing portions. The ends ofthe straps may also be poinlcd and used asclench points.

A bracket constructed according to my invention is noticeable because of ilscxtren'ie simplicity, neatness and strength. The brackets can further bc'readily attached to the frames and made to serve in connection witlrboth door and window frames, as well as other frames where the members are to be securely united at the joints.

Having thus described my said invention what I claim as new, and desire to secure by- United States. Letters Patentv is l. A. complete corner b'acket consisting of a single piece of metal including two securing portions hold parallel and extending inopposite directions with a Hat and apcrturcd inlcrvcnii'ig coimccling part at right angles'to said parallel portions, and two integra intervening securing strips extending at an angle to one another from said intervening parts.

1A window screen l'ramc comprisin'" l'our members including a top, bottdm and two side stiles, of a sheet. metal corner 'brachct clasped upon said framcovcr the inner edge at each corner, each bracket including an inlcrvcnn ig pairt having two S61 cur ng ears and two integral approximately lmangular shaped parallel held apcrturcd plates, the securing plate portions clasping the side stiles overlapping the outer edge of the same to form two parallel hold guide flanges adapted to clasp a suitable guide batten, each of said ears being secured to the inner edges of said frame to unite said frame at the corncrs, as and in the manner set forth.

3. As a,new article of manu:t'acture a sheet metal one piece corner guiding screen frame lap the connected frame portions, as and bracket, including tWo approximately trifor the purpose set forth. 10 angular plate portions held in parallel In testimony whereof I affix my signaspaced relation and connected by an interture, in presence of two Witnesses.

vening portion ending in securing ears, said CLARK J. BROWN. parallel portions being arranged to clasp WVitnesses:

upon a frame in a manner permitting the A. O. SCOTT,

edges of said bracket upon one side to over- M. SMITH.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2477163 *Jun 6, 1945Jul 26, 1949Barnett George FTruss shoe
US3481635 *Apr 3, 1968Dec 2, 1969Intern Enterprises IncUniversal roof bracket
US4342177 *Jun 18, 1979Aug 3, 1982Smith Donald APrefabricated steel frame building construction components and methods
US4581869 *Dec 29, 1983Apr 15, 1986Knoll International, Inc.Panel construction for an office system
US4699547 *Dec 16, 1985Oct 13, 1987Seegmiller Ben LMine truss structures and method
US5109646 *May 14, 1991May 5, 1992Simpson Strong-Tie Company, Inc.Bearing connection
US6655096Oct 14, 1999Dec 2, 2003Simpson Strong-Tie Company, Inc.Drag strut connector
U.S. Classification52/657, 403/DIG.130
Cooperative ClassificationE04B1/26, Y10S403/13