Year: 1888

page_text: Furposes.
We, WILLIAM PHILIPPS WENHAM and WENHAM & WATERS Limited both of
Paragon Works, Croydon, in the County of Surrey, Manufacturers, do hereby declare
the nature of this invention to be as follows:-
Our invention relates to improvements in the locks or fastenings such as are
usually employed on casements, the object of it being to draw or press the casement
close to the mullion or frame, but it is applicable also to railway carriage or other
locks or fastenings.
We will describe same as adapted to what is known as a "cockspur" handled
casement fastening.
In place of attaching the "cockspur" handle to the casement by a rivetted
fastening as usual, we screw into the metal or wood of the casement a pin having
at or about the centre a squared boss, above and below which is a screw thread.
This boss is for the purpose of gripping it with the spanner, and after it is in
position a metal plate having an opening to receive the boss is placed over it and
secured to the wood work or metal to prevent it from turning. In place of the boss
and plate a set nut may be used. Over the projecting portion of the screw is placed
a spring or spring washer and on to this the handle is screwed.
In this way the handle when turned to pass the spur into the "keep" on the
mullion or frame will move slightly up or down upon its screw according to whether
the latter is a left or right handed one, which will depend upon the direction in which
the casement opens, and by pressing or wedging against the "keep" will draw or
press the parts closely together.
Dated this 10th day of May 1888
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London,
Agent for the Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Locks or Fastenings for Casements and other
Purposes.
We, WILLIAM PHILIPPS WENHAM and WENHAM & WATERS Limited both of
Paragon Works, Croydon, in the County of Surrey, Manufacturers, 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 :-
Our invention relates to improvements in the locks. or fastenings such as are
usually employed on casements, the object of it being to draw or press the casement
close to the mullion or frame, but it is applicable also to railway carriage or other
locks or fastenings.
"
To clearly explain the nature of our invention reference is made to the accompanying
drawing in which it is illustrated as applied to what is known as a cockspur
handled casement fastening and in which:
Fig. 1 is a front elevation of a portion of a casement and frame or mullion having
our fastening applied thereto.
T
Fig. 2 is a sectional elevation of same on the line of Fig. 1, and-
Fig. 3 is a side elevation of sanie.
-
In place of pivoting the "cockspur" handle to the casement as usual upon a pin
or rivet, we insert in the casement portion A a screw a Fig. 2 (if the casement was
a metal one a different screw thread however to that shown in the drawing would be
provided) or in some other way secure a screw threaded part c to the casement. This
screw a has formed on same a squared boss and above this the rest of its body
portion is turned with a metal thread as shown. The boss b is for the purpose of
gripping it with a spanner so that the screwed part a may be inserted into the wood
or metal of the casement. After this is screwed up a metal plate d having a hole in
same is slipped over the boss b and is secured by a screw e or by a rivet or pin so
that the screw a is prevented from turning. In place of this boss and plate a nut
screwing upon the thread on the part c and down on to the casement might be used.
The boss of the handle B is formed with a cavity which covers or contains a
spring washer 9. Said boss is threaded to correspond with the thread on the part e
and is screwed on to same after the washer has been slipped over it.
"
on the
Where the casement closes away from the person as shown, the "keep
frame or mullion D consists of a metal plate, the ear h. of which is opened out as
shown in Fig. 3 so as to leave a wide opening to receive the lug i of the handle B.
With a left handed screw thread on the part c where it is desired to close the case-
ment which may be in the position shown in dotted lines in Fig. 3, the handle B is
turned so that the lug i passes from the position shown in dotted lines in Figs. 1 and 3
under the ear h of the plate E to that shown in full lines in Fig. 3, and partly in
full lines in Fig. 1. This turning of the handle causes the boss b to unscrew on the
thread of the part c, and as the lug i engages with the ear h the casement is gradually
pressed home against its seat ; in the frame. It is not necessary that the ear / should
be opened out as shown in Fig. 3, as it might be parallel with the face of the plate E,
but we find that the incline assists in forcing the parts together.

page_text: Where the casement opens in the other direction and has to be drawn towards the
person, the lug i engages with a slot in the framework (instead of with the keeper
plate E) and the screw on the part e will be a right handed one, so that as the lug i
enters the slot the screwed boss on the handle B draws up the part c and so draws
the casement tightly against its scat in the frame. The purpose of the spring washer g
in the cavity of the boss is to afford a pressure on the handle B, so that it may remain
in any position in which it is set.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1
1. A casement or similar lock or fastening carried by and turning upon a screw
so that on engagement with the "keep" the casement or corresponding part is drawn
or pressed tightly to the frame substantially as described.
2. In combination with the lock or fastening described in the foregoing claini
à spring washer, substantially as and for the purposes described.
PHILIP M. JUSTICE,
55 & 56, Chancery Lane, London,
Agent for the Applicants.