Improvements in or relating to Wall Plugs.
Year: 1897

page_text: Date of Application, 25th Nov., 1897-Accepted, 12th Feb., 1898
COMPLETE SPECIFICATION.
Improvements in or 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 improvements in the construction and use of wall plugs,
such as are or may be employed for securing wood casings for telephone wires
or other articles to brick or stone walls and for like purposes. The object of this
invention is to enable the artificer to determine the precise positions of the holes
that are required to be bored for the screws in the said wood casing or other
appliance. 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
and Fig. 2 a front view of a wall plug with a marker as represented in Fig. 3
placed therein. Fig. 4 is a section of a wall plug, Fig. 5 is a side view and Figs. 6
and 7 are front views showing modified forms of wall plugs; Fig. 8 represents in
section a portion of a wall with our invention applied. Fig. 9 is a section of a
In these views similar
wall plug in a wall with casing secured thereto by screws.
letters refer to similar parts.
For the purpose of fixing wood casing for telephone wires and like purposes to
brick or stone walls we employ a metallic plug a that is driven into the wall, and
in which is a hole with a screw thread formed therein for the reception of an
ordinary screw as c. In this invention, in order to determine the position of the
bole that requires to be made in the wood casing herein before named through
which to pass said screw we employ a marker as shown in Fig. 3 which after the
aforesaid metallic plug has been driven into the wall we place in the hole that is
intended for the screw with the pointed end d of said marker projecting therefrom;
we then fit the wood casing e or other article against the wall in the intended
position and tap it lightly with a hammer, when the said marker will be fixed in or
mark the wood casing or article, and when the casing or article is removed the
required position of the hole in the casing or article will be thereby indicated.
In a modification of our invention we construct the wall plugs herein before
named with sharp points as at their angles as Figs. 5 and 6, or with a sharp
circular edge as Fig. 7, the hole required for the screw being bored in the centre
of the marks indicated by the aforesaid points or edge. With the plugs herein
last described a punch or an equivalent may be employed in driving said plugs
into the wall in order to avoid the aforesaid sharp points or edges being destroyed
by the hammer.

page_text: 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. In combination with wall plugs such as are represented on the accompany-
ing drawing that are employed for securing wood casing for telephone wires and
other articles to brick or stone walls and for like purposes, the use of a marker as
shown in Fig. 3 for placing in the screw hole of the aforesaid plug by which to
mark the required position of the hole to be bored in said casing or article substan-
tially as and for the purpose herein before described.
2nd. In fixing or attaching wood casing for telephone wires and like purposes
or other appliances to brick or stone walls, the use of a wall plug with the front or
face side formed with sharp points at the angles thereof or with a sharp circular
edge, substantially as and for the purpose herein before described.
Dated this 24th day of November 1807
THOMAS PRESCOTT,
53, Arcade Chambers, St. Mary's Gate, Manchester,
Agent for the Applicants.