US881463A - Corner-bar. - Google Patents

Description

No. 881,463. I RPIATENTEDMAR. 10; 1908 0. B. UUSHWA.

coRNRR BAR.

I AP PLIOATION FILED APR-.10, 1907.

- 2 SHEETS-SHEET 1.

v I J' o 5 60 g L l 1-- 4 5 I'" 0 o i L q A O J z 5 0 I R ?ATENTEDMAR. 10, 1908.-

c. B.. GUSHWA. CORNER BAR.

i'r'i mouron FILED APR. 10, 19'07.

2 SHEETS-SHEET 2.

CHARLES B. CUSHWA, OF YOUNGSTOWN, omo. 5E5? .ZWAZ" t CORNER-BAR.

racemes.

Specification of Letters Iatent.

Patented March 10, 1908.

' Application filed April 10, 190?. seen No. 367,372.

To all whom it may concern:

Be it known that 1, CHARLES B. CUsHwA, a citizen of the United States, residing at Youngstown, in the county of Mahoning and State of Ohio, have invented certain new and useful Im rovements in Corner 7 Bars, of

which the ollowing is a specification.

This invention relates to an improvement in corner bars or strips which are designed for protecting the angles of plastered walls and more effectually retaining or keying the plaster at such oints.

, To this end, t e .invention contemplates a simple, practical and strong corner bar for the purpose indicated which can be easily and cheaply constructed with a maximum economy of material. Also the invention provides a design of corner bar possessing great rigidity and entirely free from spring, while at the same time so constructed as to be readily and firmly attached in position, and providing an extended anchoring or keying area for the plaster.

With these and other objects in view which will more readily appear as the natureof the invention is better understood, the same consists in the novel construction, combination and arrangement of parts hereinafter more fully described, illustrated and claimed.

In the accompanying drawings: Figure 1 is a perspective view of a corner bar for walls, constructed in accordance with the present invention. F' 2 is 'a cross sectional view thereof on the lme 22 of Fig. 1. Fig. 3 is a plan view of the sheet metal blank from which the bar is cut'and shaped. Fig. 4 is a view showing. the bar a-p lied. Fig. 5 is a perspective view of a mo ification of the invention. involving the em loy-men t of sulplemental holder brackets fcr supporting t e ar. Fig. 6 is a to edge plan view of the bar and one of the. older brackets attached thereto. Fig. 7 is an enlarged detail cross sectional view of a modified form of bar indicated by the line 7'-7 on Fig. 5.

Like references. designate corresponding parts in the severalfigures of the drawings; 'In carrying out the invention, the bar as an entirety is struck out and shaped from a single blank or piece of sheet metal ossessing sufficient strength and rigidity. he cut blank from which the bar is bent u into its final shape isshown in Fi 3 of the rawings, and referring thereto, it will be observed that said blank is so cut from a sin le metal plate or piece of material as to provi e what may be -bead strip 2 and the directly opposite holdin thicknessportions 5 of the holding arms.

' termed a body strip 1 formed with a central longitudinal bead strip 2 hnd a plurality of regularly spaced holdmg arms 3 projecting from o posite side edges of the strip 2 and arrange in directly opposite relation The spaced-holdmg arms 3 of the blank body strip, shown in Fig. 3, are preferably cut in rectangular form, andby reason of their directly opposite and spaced relation, provide therebetween, keying spaces 4 withm which the f-plaster becomes 6. ed or anchored. In connection with the orm of the blank body stri shown in Fig. 3, it will be observed that t e design thereof permits of great economy in the use of material in manufacturing the corner bars in quantities. V In fact, the con'struction'is such that waste material is avoided inasmuch as the metal cut from the blank s aces 4 of one strip blank will form the ho ding arms of another strip blank by sim ly shifting the' pattern. the width of the hol ing arm, as iriilicated by the dotted lines.

The body strip 1 is doubled or folded upon itself along the longitudinal center line of the arms 3 brought together for a portion of their lengths to provide double thickness straight portions 5 directly adjoining the bead 2, and at what may be termed the inner ends of said straight portions 5 the arms 3 of each pair are deflected laterally to provide the divergent attaching wings 6 designed to fit over theangle of the wall and be secured scar to the wall faces as indicated at 7 in Fig. 4

of the drawings. I

The doublingor foldin of the body strip in the manner explaine produces at the outer edge of the body strip a cylindrical protective head which may be stiffened and reinforced by a reinforcing rod 8 fitted therein, and which adds materially to the strength and rigidity of the bar. Also, the latter functions are subserved by the doubIle n connection with the applied position of the device shown in Fig. 4, it 1s to be noted that the holding arms are provided with the retaining holes 9 for the fastening devices.

A modification of the invention. that may be-resorted to is suggested in the group of Figs. 5, 6 and 7, the distinctive-feature of this modification being the employment of two or more supplemental. holder brackets particularly designed for supporting the bar l m connection-With tiled and 3'z?li?.LI' /Vitll8.'

Forfwalls of this character, the attaching wings of the' holding arms of the bars shown in Figs. 1 and 2 of the drawings, will ordinarily not be of sufficient length, inasmuch as it is necessary to support the bar proper farther from the wall corner when tile or similar material is used in the wall construction. However, in such cases, no radical change is required in the construction of the bar proper as it will be observed by reference to Figs. 5, 6 and 7 of the drawings, that in the modified structure the bar proper is formed from a blank of substantially the design shown in Fig. 3, which blank is doubled'or folded upon itself along the longitudinal center line to form at the outer edge of the bar the longitudinal edge bead 2, while the directlyopposite holding arms are brought to ether for a portion of their length to provide the double-thickness straight portions 5, the inner ends of which straight portions of said holding arms 3 are deflected laterally to provide the divergent attaching wings 6. In these particulars, the construction of the bar proper is the same as that of the bar shown in Figs. 1, 2, and 3 of the drawings, and hence similar reference characters apply to similar parts in both groups of figures. However, in the modified structure referred to there is'suggested the idea of forming the edge head 2 more of an oval or oblong form in cross section, while the double-thiclmess straight portions of the holding arms are somewhat shortened and'the divergent attaching wings 6 are also clipped, in other words making the holding arms 3 of shorter length than in the form of the bar shown in Figs. 1, 2 and 3. i\loreo\"er-the modified structure of the .bar pref(- rabl v involves the thought of providing in the. holding arms longitudinal keying slots 10 which serve to more securely bind or anchor the plaster, but as indicated, the distinctive feature in the modification is the em loyment of two or more supplemental holder brackets 1.1 which are separably interlocked with any pair of attaching wings 6 of the bar. All of the supplemental holder braclmts are. of the same. construction, each of the same being of angular or. V-shape and essentially consisting of a single length metallic strip bent to form a pair of diverging supporting straps 12 having retaining holes 13 therein for the nails or equivalent fastening devices. in addition to the supporting straps 12, the metal strip forming each holding bracket 11. is bent and doubled. upon itself at the angle of the bracket to provide an integral Vshaped engaging clip 14 having a V-shaped open. ended pocket 15 receiving therein a pair of divergii'ig attaching wings 6 of the bar proper. The holding clip 14 is slipped over and off from the said attaching wings 6 at the ends of: the latter as may be plainly seen from the. illustration in Figs. 5 and 6 of the drawings.

. It will be understood that any numberof the supplemental holders 11 may be cmloyed, as m: y. lJGrllOCOSStLl'IV, and it is preferable that the straps 12 of each holder be set at an angle somewhat less than the angle of the corner on which they are to be placed, so that when they are forced on, the outer ends will be sprung downwardly, thus giving the clip 1.4. a firm biting grip upon the attaching wings 6 and thereby seciucly holding the parts together. Also, with the arrangement described, the ground or thickness ofthe plaster may be regulated, or in other words, the bar may be adjusted to the desired thickness of the plaster, the supplemental holders being sct'in or out on the corner of the wall any necessary distance, according to the thickness of the plaster coat.

Other modifications will suggest themselves to those familiar with the art without further description.

I claim:

1. A corner bar for walls, comprising a metallic body strip stamped from a single blank of sheet metal and doubled or folded along the longitudinal center line thereof to provide a longitudinal edge head, said strip being further provided with a plurality of integral spaced arms projecting from one .5

side of the bead and flatly abutting to produce double thickness straight portions, said arms being provided beyond said straight portions with divergent wings] 2. A corner bar for walls, comprising a body strip having an edge bead and divergent wings at one side of the bead, and a supple-mental holder bracket having a member detaehably engaging between and about said wings.

3. A corner bar for walls eomprising a body strip having an edge bead and divergent attaching wings at one side of the bead, and a supplemental holder bracket having a V-shaped clip detachably engaging between and about said wings.

. 4. A corner bar for walls comprising a body strip having an edge bead and a plurality of pairs of divergent attaching wings at one side of the bead, and a plurality of supplemental angular holder brackets, each bracket consisting of a single metallic strip bent to forma pair of divergent supporting straps, and at the angle of the bracket being bent and. doubled to provide an integral V-shaped engaging clip having a V-shaped pocket receiving a pair of said attaching wings.

In testimony whereof I hereunto affix my signature in the presence of two witnesses. 1

CHARLES B. CU$HW1L lvitnesses JOSEPH F. VILLIAMSJ BURRELL.

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