US2450385A - Plasterer's featheredge device - Google Patents

Description

Sept. 28, 1948. HUM K 2,450,385

PLASTERERS FEATHEREDGE DEVICE Filed Oct. 15, 1946 Patented Sept. 28, 1948 UNlTED -STATES PATENT OFFICE PLASTERERS FEATHEREDGE DEVICE Albert J. Schumock, Washington, D. C. Application October 15, 1946, Serial No. 703,359 1 Claim. (Cl. 72-136) This invention relates to a plasterers tool of the class known as a featheredge which is used in the general nature of a scraper for smoothing on" the plastered walls and ceilings of rooms before the plaster has completely hardened so that such walls and ceilings will have a flat and uniform surface.

An important object of my invention is to provide a featheredge composed of wood and having a metal blade mounted in one longitudinal edge thereof, the blade being readily attachable to and detachable from the featheredge.

Another object of my invention is to provide a featheredge composed of wood and having a handgrip formed adjacent one longitudinal edge so constructed and arranged as to snugly and comfortably fit within the hand of a plasterer and at the same time serving to rigidify the featheredge in a lengthwise direction and restrain it against warpage.

Still another object of the invention is to provide a featheredge of the above character having two bounding surfaces lying at right-angles to each other and levels mounted upon the featheredge and correlated to the bounding surfaces whereby the featheredge is capable of use to determine the out-of-plumb condition of vertical and horizontal surfaces, such as walls and ceilings.

These and other objects and advantages will be apparent from the following detailed description of a preferred embodiment of the invention, reference being had to the annexed drawing in which:

Figure 1 is a perspective view of a plasterers featheredge;

Figure 2 is an enlarged cross-sectional view through the featheredge taken on the line 2-2 of Fig. 1; and

Figure 3 is a detail view of the metal blade which is adapted to be detachably associated with the featheredge.

In Fig. 1 of the drawing is shown a plasterers featheredge l of flat, elongated rectangular shape made preferably of redwood or some other light wood. One longitudinal edge 2 of the featheredge is trimmed to semi-circular shape in transverse cross-section, and extending parallel to this edge a short distance therefrom upon opposite sides of the featheredge are two strips of quarter-round molding 3, disposed curved-face downward. The molding is attached to the featheredge by means of nails 4 or other suitable fastening means and it is so located that the two curved faces of the molding strips and the curved edge 2 of the featheredge lie within an egg-shaped oval as indicated in phantom lines in. Fig. 2, thus providing a comfortable grip by means of which the featheredge may be firmly held by the plasterer during the use of the tool. The molding strips also serve to rigidity the featheredge in a longitudinal direction and prevent it from warping.

The longitudinal edge of the featheredge opposite the rounded edge 2 is recessed in a lengthwise direction, as indicated at 5, and within this recess is detachably positioned a metal blade 8, preferably made of fiat heavy-gage aluminum stock, which although light in weight possesses good resistance to wear. Opening through one longitudinal edge of the blade are bayonet slots 1.

A plurality of clamping pins 8 extend crosswise of the recess 5, these pins having at one end heads 8a countersunk within one side face of the featheredge and being threaded at their other end to screw into nuts 9 countersunk and anchored within the opposite side face of the featheredge. The blade 6 is first inserted within the recess 5 so that the clamping pins 8 pass along the vertical legs of the bayonet slots and is then shifted in a lengthwise direction so that the pins seat within the horizontal legs of the slots. By engaging a screw driver with the kerfs in the heads 8a of the pins 8, the pins are screwed into the nuts 9 drawing together the walls upon opposite sides of the recess 5 so as to firmly bind the blade within the recess and hold it against accidental 'dislodgment from the pins. To remove the blade from the recess, the clamping pins are unscrewed and the blade shifted so as to withdraw the pins from the bayonet slots.

The featheredge is constructed so as to serve as a level for truing up the surfaces of walls and ceilings. To this end two holes are cut through the featheredge adjacent its ends, as indicated at Ill, and within these holes are mounted levels H of the bubble type disposed in planes lying at right angles to each other. The featheredge is of true rectangular shape so that its two transverse edges are disposed parallel to one of the levels and its two longitudinal edges (one of which may be constituted by the metal blade 6) are disposed parallel to the other level. Thus, by resting any edge of the featheredge against a surface, such as a wall or ceiling, and consulting the appropriate level, the trueness of the surface in either a vertical or horizontal plane may be readily determined. The opposite sides of the holes ID are closed by glass windows Illa to protect the levels against dirt and injury.

It is to be understood that the plasterers featheredge described and illustrated herein is to be regarded as illustrative and not restrictive of the invention and that various changes may be made by one skilled in the art without departing from the spirit and scope of the invention as defined by the following claim.

I claim:

A plasterer featheredge comprising a relatively wide, fiat wooden board having approximately straight longitudinal edges, one of said edges having a longitudinal recess therein and a meta-1 blade detachably secured in said recess and projecting outwardly therefrom, and molding strips secured to the board in corresponding locations upon opposite sides of theboard parallel to and adjacently spaced from the other of said edges of the board, said molding strips and adjacent edgebeing. rounded in transverse cross-sectional 4 contour and the curved surfaces lying within and together defining the outline of an oval, whereby the molding strips and adjacent longitudinal edge of the board provide a comfortable and eflective hand grip with the molding strips serving to strengthen and maintain the board against warping in the direction of its length.

ALBERT J. SCHUMOCK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,139,796 Parker May 18, 1915 1,166,678 Hall Jan. 4, 1916 1,412,728 Werner Apr. 11, 1922 1,575,318 Cowan Mar. 2, 1926 2,133,605 Wikstrom Oct. 18, 1938 2,314,927 Farrington Mar. 30, 1943

Images