IMPROVEMENTS IN WALL-TIES
Year: 1884

page_text: [ WALTER MONNERY of N° 5 Chancery Lane in the County of Middlesex do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN WALL-TIES”
to be as follows:-
This Invention relates to such wall-ties as are employed for binding together
double walls between which it is desirable to preserve an air-space.
My improvements consist in forming surations or corrugations upon the branches
or arms of such ties in addition to the usual hook or claw at the end thereof
.whereby the holding power of the tie is greatly increased.
In the accompanying Sheet of drawings, Figure 1 represents a wall-tie or strut
in elevation and Figure 2 is a plan view of same. A is the central portion which
occupies the space between the two walls, the enlarged ends a thereof resisting any
pressure which would tend to diminish the space whilst the surated arms B bind
the two walls together and maintain their parallelism against any force acting in
the opposite direction or tending to produce undue separation thereof.

page_text: 33
I, WALTER MONNERY, of N° 5 Chancery Lane in the County of Middlesex, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN WALL-TIES
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 such wall-ties as are employed for binding together
double walls between which it is desirable to preserve an air space.
My Improvements consist in forming serrations or corrugations upon the branches
or arms of such ties, whereby the holding power thereof is greatly increased. The
serrations are formed in such a manner that any contraction of the tie will tend to
draw the two sections of the wall closer together by reason of the vertical faces
being directed towards the centre, whilst any expansion of the tie will not tend to
separate the two walls materially as only the inclined surfaces of the serrations
will come into contact with the surrounding material.
And in order that my Invention may be more fully understood; I herein give
reference to the accompanying Sheet of drawings illustrative thereof.
Figure 1, which is a sectional elevation, represents my improved wall tie as
applied to a double wall, and Figure 2 is a plan view of same.
A is the tie, and the sectional lines B indicate the two walls. The arms of the
tie are serrated, and it is apparent that owing to the faces of the serrations in one
direction being parallel to the faces of the walls and therefore at right angles to the
lines of separation indicated by arrows, offer a greatly increased area of holding
surface as compared with ordinary ties on which only hooks or claws are formed.
It will also be apparent that if the ties should happen to expand owing to an
unusual increase of temperature, as in case of fire, the inclined faces c of the
serrations, instead of exercising a direct outward thrust, will be gradually forced
through the material of the walls without disturbing the parallelism of the same.
To prevent the walls collapsing under external pressure, I form shoulders a on the
middle portion of the tie, the sectional form of this middle portion being such as
will offer the greatest resistance with the minimum weight of metal.
Having now described and particularly ascertained the nature of my said
Invention and the inanner in which the same is or may be used or carried into
effect; I would observe in conclusion that what I consider novel and original and
therefore claim as my Invention, is :—
1. The construction of wall-ties having arms or branches serrated in the manner
and for the purpose herein shewn and described.
2. The construction of wall-ties having the shoulders a of the form herein shewn.
Dated
1
1004