Improvements in Shields or Protectors for Preventing the Accumulation of Dust in Corners.
Year: 1891

page_text: Date of Application, 25th Nov., 1891-Accepted, 2nd Apr., 1892
COMPLETE SPECIFICATION.
Improvements in Shields or Protectors for Preventing the
Accumulation of Dust in Corners.
I, DAVID HENRY ROCKWELL, of 140 Washington Street Binghampton, in the
County of Broome, and State of New York, United States of America, Inventor,
do hereby declare the nature of this invention, and in what manner the same is to
bu performed, to be particularly described and ascertained in and by the following
statement: --
My
invention relates to improvements in corner shields or protectors; and is
consists in the particular construction which will be fully described hereinafter, and
pointed out in the claims.
Heretofore corner shields or protectors have been made which have been
intended and used for the same purpose as my invention; but in these instances
the triangular piece has been provided with projecting points that are bent at right
angles to the surface of the plate and these points driven into the wood, which
requires considerable time and which always more or less defaces the plate at the
point which is driven into the board.
The object of my invention is to so construct a plate for corner shields or
protectors, that it will automatically hold itself in position when pressed against
the board, and which can be quickly removed by inserting a sharp pointed
instrument of any kind under either apex of the plate and slightly prizing it.
outward without in any manner damaging or defacing the shields, so that it can be.
as often used as desired.
Figure 1 is a perspective view of my invention, showing it in position and an,
extension applied to its upper end.
Figure 2 is a detached view of a corner plate.
Figure 3 is an enlarged view of a portion of the edge of the plate, showing the
exact form of the serrations made therein.
In the drawing, A indicates a triangular metal plate, which is spring metal and
which is provided with slightly curved edges provided with the serrations B. The
serrations are preferably cut or so formed that a ragged edge C is formed on the
rear of the plate, and these serrations catch in the board to which the plate is.
applied, when it is pressed in the position shown in Figure 1. The serrations
have a better hold upon the board, owing to the ragged edge which is formed upon
them.
While I here show the serrations made along the entire length of the plate, I do.
not desire to limit myself to this particular construction, for it will be readily
conceived that the serrations can be formed at intervals along the edge of the
plate, though I greatly prefer to use them along the entire edge. These serrations
are made very fine, as shown, so that when the plate is pressed in position and they
are forced into the wood they are scarcely noticeable. As shown in Figure 1 an
extension D may be applied to the upper end of the plate, and which will serve as
a finish to cover up any opening or crack that may be in the corner, or it may be
used simply as a finish. This extension D is also provided with serrations similar
to those made on the plate, so that it can be automatically applied to the corner
by pressing it in position. So, also, the meeting edge of the floor and the wall or
of the floor and the washboard can be covered by a plate E, which is also provided
with serrations on its edges similar to those made on the plate A and held in
position thereby. When the plate A is to be applied to a brick, stone, or marble
wall, it is preferably provided with recesses F upon opposite edges for the purpose
of holding the plate in position by screws.
By means of a shield constructed as above described, it can be automatically-

page_text: placed in position either by a pressure of the fingers, as the plate or shield is made
of thin spring metal, or by a three cornered instrument of any kind that is
substantially of the same shape as the shield. .The plate or shield is held in
position by the serrations being forced into the board, and the tension of the spring
plate keeps the serrations constantly pressed against the corner to which it is
applied. Although the shield is held firmly to its place yet it can be readily
detached or removed by inserting a sharp pointed instrument of any kind under
the edge of the shield and slightly prizing it outward. In this manner the shield
can be applied by house keepers and be detached for the purpose of removing
carpets or to be taken from one house to another.
My corner shield differs materially from, and I make no claim herein for, a
triangular corner protector having barbed or arrow head corner projections and
one or two long. intermediate projections formed on its otherwise smooth edges
between the corner projections.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare what I claim
1st. The, herein described spring metal plate for the purpose set forth, provided
with the closely arranged fine continuous biting edge serrations having ragged
edges on the inner sides, as and for the purpose set forth.
2nd. The herein described triangular spring metal plate for the purpose set
forth, having its edges provided with the fine closely arranged biting serrations,
arranged and formed to operate as set forth.
3rd. In combination, triangular spring metal plate A, and elongated spring
metal plates E, E, and D, all of said plates having their engaging edges provided
with closely arranged biting serrations, substantially as shown and described.
4th. In a shield or protector for the purpose described, consisting of a plate
having serrations on its edges, and recesses formed in opposite edges for the
reception of screws, substantially as specified.
Dated this 25th day of November 1891.
D. H. ROCKWELL,
By E. W., per F. B.