Improvements in and relating to Wall Plugs.
Year: 1897

page_text: Date of Application, 8th Sept., 1897
Complete Specification Left, 30th Nov., 1897-Accepted, 19th Mar.,
1898
PROVISIONAL SPECIFICATION.
Improvements in and relating to Wall Plugs.
I, CHARLES UDALL, of Irish Street, Glasson, Maryport, in the County of
Cumberland, Pattern Maker, and F. H. ROYCE & Co. LIMITED, of Cooke Street,
Hulme, Manchester, in the County of Lancaster, Manufacturing Electricians, do
hereby declare the nature of this invention to be as follows:
The improvement which forms the subject of this invention relates to a method
of constructing and using wall plugs. Its object being, to provide a plug which
will form a hold for a screw, without the labour of, and time occupied in drilling
out a hole in the wall and inserting a plug of pine or other timber, as is usually
done.
.
The plug is constructed of cast malleable iron or other suitable material, and is
of a square, rectangular or other shape, tapering in its length to a point, in the
form of a wedge. In the thick end (or head) of the plug is drilled, cored, or other-
wise formed, a hole in which a thread is formed. In this thread an ordinary screw
of the kind commonly used for wood or iron, can engage and be tightened up in
the usual manner.
The method of using is as follows;-The point of the plug is placed upon a
joint in the bricks, stones, or tiles of which the wall is formed and is then driven
home with a hammer. A hole is made in the casing for conveying electric wires,
or whatever the article it is desired to attach to the wall. Through this hole the
screw is placed and screwed up into the aforementioned plug. The hole is enlarged
for a suitable distance at the top or head of the plug in order that the thread may
not be affected by the blows of the hammer in driving it into position.
Dated this 6th day of September 1897.
Improvements in and relating to Wall Plugs.
We, CHARLES UDALL, of Irish Street, Glasson, Maryport, in the County of
Cumberland, Pattern Maker, and F. H. ROYCE AND CO. LIMITED, of Cooke Street,
Hulme, Manchester, in the County of Lancaster, Manufacturing Electricians, do
hereby declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
This invention relates to the construction of wall plugs such as are or may be
employed for securing wood casings for telephone wires and like purposes or other
appliances to brick or stone walls. The object of this invention is to provide a

page_text: plug which will form a hole for a screw without the labour and time required for
drilling or cutting a hole in the wall and inserting therein a wood plug as is
ordinarily employed. We attain this object by the means hereinafter described
reference being made to the accompanying sheet of drawings in which Fig. 1 is a
side view Fig. 2 a front view and Fig. 3 a longitudinal section of a wall plug con-
structed according to this invention. Fig. 4 represents in section a portion of a
wall with our invention applied. In these views similar letters refer to similar
parts. We construct a plug 6 preferably of cast malleable iron, either rectangular,
as shown, or of other suitable shape and tapering to one end in the form of a
wedge. In the larger end or head of the plug we either drill, core or otherwise
form a hole e with a screw thread therein in which to insert an ordinary screw d
such as is employed for wood or metal and which may be tightened up in the
usual manner. In applying our invention, the tapered end of the plug 6 is placed
in the joint of the bricks, stones or tiles of which the wall a is constructed and
driven home with a hammer; a hole is made in the casing c that is required to
be fixed to the wall for the reception of electric wires or the like or other article
it is desired to attach to the wall and a screw d is passed through said hole and
screwed into the aforesaid plug. The commencement e¹ of the hole e in the plug
is plain and of a little larger diameter than the screw to be inserted in order that
the thread may not be affected by the blows of the hammer when said plug is being
driven into the wall.
Having now particularly described and ascertained the nature of this our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
1st. Fixing or attaching wood casing for telephone wires and like purposes
or other appliances to brick or stone walls by means of a plug as 6 that is wedged
in the joint of a wall said plug having a hole formed therein for the reception
of a screw by which the casing or other article is secured thereto substantially
as and for the purpose herein before described.
2nd. In the fixing or attachment of wood casings for telephone wires and like
purposes or other appliances to brick or stone walls the construction and use of
wall plugs that are formed with a hole having a screw thread therein for the
reception of an ordinary screw and driven into the joints of a wall substantially
as and for the purposes herein before described.
Dated this th
1007
THOMAS PRESCOTT,
53, Arcade Chambers, St. Mary's Gate, Manchester,
Agent for the Applicants.