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Publication numberUS1167837 A
Publication typeGrant
Publication dateJan 11, 1916
Filing dateDec 21, 1914
Priority dateDec 21, 1914
Publication numberUS 1167837 A, US 1167837A, US-A-1167837, US1167837 A, US1167837A
InventorsWilliam S Pride
Original AssigneeWilliam S Pride
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Reinforcement for plastering.
US 1167837 A
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Description  (OCR text may contain errors)



Patent-ed J an. 11, 1916.


Specification of Letters Patent.

Patented Jan. 11, 1916.

Application filed December 21, 1914; Serial No. 878,255.

To altwh'om 'it-may concem Be'it knownth'at I, WILLIAM S. PRIDE, a citizen offthe 'United- States, residing at Oakland, in: the vcounty of Alameda and State of California, have invented new and useful Improvements in Reinforcement for Plastering, of which the following is a specification.

This invention relates to plastering and the art ofapplying a plastic material, which will afterwardiharden, to walls and surfaces, and particularly to a means for reinforcing. such .pla'stic surfaces where they meet to form corners.

The invention consists of metallic angle pieces fixed tothe inner corners or angles of rooms, projecting at substantially right angles parallel to the lathing formin the corners, and fixed thereto; the sides of said corner pieces being bent or curved inwardly with the radius of curvature located outside of the angular strips, and parallel with their length, so as to form longitudinal arches which are perforated for the admission of the plastic material to the spaces betweenthe strips, laths and studding, and form a firm and rigid reinforcementfor the wall surface material. v

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which-'- Figure 1 is a perspective view of a portion of a corner reinforcing plate. Fig. 2 is a horizontal section of such a reinforcement, showing its attachment to the studding and the mortar application.

Some difliculty is encountered in properly reinforcing plastered corners meeting on or cracking, and my invention is designed to overcome this difiiculty. Y

The interior corners of rooms are formed by studding or equivalent structure A, upon which laths A are nailed. In my invention strips or plates, preferably of sheet metal 2, are stamped out and bent to form the required. angle 3, which fits into the built up corner, and the two sides of the plate extend respectively along the corner work where they are nailed'or fixed to the lathing A'. At points a short distance from the,,angle, these plates are arched inwardly,

"as at'4, thus forming spaces between the I nels and the arched portions and the surface of the wood beneath. Holes or openings of suitable or convenient shape are formed through the plates so that when the plastic material is laid upon the wall and extended into the corner, it will cover the plate and a portion will be forced through the openings into the channels beneath the arches, and I also through the interstices between the laths, and being thus united with the main portion of the surface material through the openings, a strong reinforce and bond is formedto retain the material in position and prevent injury from warping or shrinking of the heavier exterior wood or studding support. This forms a rigid union between the lathing and plaster at the internal angles of rooms and insures the plaster against cracking, because any shrinking or' change of position of the studding will withdraw the light lath nails so that spaces may be formed between the laths and studding, but the plaster and laths will remain firmly together.

Having thus describedv my invention, what I claim and desire to secure by Letters Patent is construction practically A reinforcement for interior plastered corners consisting of a plate bent at an angle to fit the interior corner and to form angularly disposed sides, each side being arche inwardly adjacent the angleof the plate to form vertical channels and to form with the sides of the angle a corner vertical channel having a restricted vertical inlet formed by the arched portions, eacharched portion having a vertical series of openings opposing those of .the other arched portion for admitting plastic material to fill the first channels and permit of the formation of a series of continuous cross bars of plastic material extending across the angle formed by the plate sides and connecting the material in all of the vertical channels,

whereby the plastic material is doubly secured by either of the first vertical chancornerchannel.

In testimony whereof I have hereunto set my hand in'the presenceof two subscribing witnesses.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4763455 *Jun 16, 1983Aug 16, 1988National Gypsum CompanyInterior corner drywall bead
US6684586 *May 6, 1999Feb 3, 2004Pro Patch Systems, Inc.Drywall finishing strip
US8833019 *Mar 28, 2012Sep 16, 2014Robert B. RutherfordLath furring strip
US20130255172 *Mar 28, 2012Oct 3, 2013Robert B. RutherfordLath Furring Strip
U.S. Classification52/250, 52/255
Cooperative ClassificationE04B5/40