IMPROVEMENTS IN CASEMENT STAY FASTENINGS
Year: 1884

page_text: I ARTHUR DOWNING of Caroline Street Birmingham in the County of Warwick
Manufacturer do hereby declare the nature of the said Invention for IMPROVEMENTS
IN CASEMENT STAY FASTENINGS to be as follows:-
This Invention consists in the introduction of a spring within or upon the
ordinary pivotted box through which the casement stay or arm passes.
This stay
or arm has upon its upper surface slots notches sinkings or projections and the
underside of the top of the box has corresponding projections or sinkings so that
the spring being made to bear upon the underside of the arm presses it against the
top of the box and holds the stay in position. To release the stay it is only
necessary to press down the arm when it can be slid in either direction through
the box. The same result may be obtained by placing the spring at the top and
the catches on the underside but the first named arrangement is the one I prefer.
By this arrangement of spring and catch the use of the thumb screw to fix the
arm in position is dispensed with.
PAYNE & TALBOT,
100, Colmore Row, Birmingham,
Agents for the Applicant.

page_text: I ARTHUR DOWNING of Caroline Street Birmingham in the County of Warwick
Manufacturer do hereby declare the nature of my said Invention for IMPROVEMENTS
IN CASEMENT STAY FASTENINGS and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement,
reference being had to the Drawings hereunto annexed and to the letters and
Figures marked thereon that is to say :-
This Invention consists of the introduction of a spring in or upon the ordinary
pivotted box through which the casement stay or arm passes. This stay or arm
has upon its upper surface slots notches sinkings or projections and the underside
of the top of the box has corresponding projections or sinkings so that the spring
being made to bear upon the underside of the arm presses it against the top of the
box and holds the stay in position.
To release the stay it is only necessary to press down the arm when it can be
slid in either direction through the box.
Referring to the Drawings Fig. 1, is view of the casement stay and Fig. 2 a
front or end view of the pivotted box with the stay removed Fig. 3 a side elevation
of the box shewing the spring. B, B, B, are the slots upon the upper surface of the
stay or arm and C, is the projection upon the box into which the slots, B, take, the
edge of the catch piece, C, is slightly curved so as to allow the arm to pass under
it with as little friction as possible, D, is the spring within the box, A, which
spring may or may not carry a small roller which it presses against the underside
of the stay bar causing the slots, B, to catch onto the projection, C.
The jointed end E of the stay being attached to the casement and the pivotted
box A to the casement frame so that when the casement is closed the slot nearest
to the joint E is held by the catch, C, to open the sash the bar or stay is pressed
down by means of the knob, F, and pushed forward to travel in the ordinary way
through the pivotted box A.
This stay fastening is applicable to casements hinged either at the side top or
bottom and is suitable for casements out of reach of the hand in which case a ring
or loop takes the place of the knob, F, and a stick carrying a hook can be used to
release the arm from the catch, C, and push or pull it forward or backward.
If the casement should inadvertently be left unfastened no amount of wind
pressure can cause it to slam to as the spring will force onto the catch the first slot
that reaches it.
The same action as above described may be obtained by putting projection upon
the stay bar instead of the slots, B, or by placing the spring D at the top of the
box A and the catch, C, at the bottom but the mode illustrated is the one I prefer
as being the simplest and most effective.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
A casement stay fastening consisting of a bar having upon its upper or lower
surface slots notches sinkings or projections which are caused to catch onto a

page_text: sinking or projection in a pivotted box by the action of a spring brought to bear
onto the reversed side of the bar to that upon which are the slots notches sinkings.
or projections as herein more fully set forth and described.
Dated this 19th dew of Anonst 1884
PAYNE & TALBOT,
100, Colmore Row, Birmingham,
Agents for the Applicant.