Year: 1888

page_text: We HENRY SEPTIMUS WHITEHOUSE of the firm of John Whitehouse and Sons of
Green Street Birmingham in the County of Warwick Brassfounders and JOSIAH
CLIFFORD of South Road Birmingham aforesaid Brass Finisher do hereby declare the
nature of this invention to be as follows:-
This invention has reference to the guard used for preventing the jointed arm of the
sash fastener from being forced back for unfastening the sashes by a knife or other
like instrument introduced between the meeting rails of the two sashes and the said
invention consists in making the said guard and bringing it into and taking it out of
action in the manner hereinafter described.
We use a jointed arm on one part of the fastener and a "quadrant" on the other part
of the fastener (under which quadrant the said arm passes to fasten the sashes) of the
ordinary kind but we so construct and modify the blade spring by which the jointed
arm is held in its fastening and unfastening positions that the said spring besides
performing its ordinary function also acts as a guard for preventing the forcing back
In
of the jointed arm by a knife introduced between the meeting rails of the sashes.
place of using a nearly flat blade spring we use a blade spring the free end of which is
bent at right angles to the other part of the spring the said bent part constituting the
guard of the fastener. The said guard has such a length that when the spring is in
its relaxed state it crosses the junction of the meeting rails of the sashes. The acting
part of the spring bears upon the flat sides of the heel of the jointed arm in the
usual way.
When the jointed arm is turned under the quadrant for fastening the sashes the
heel of the said arm permits of the advance of the acting end of the spring and also
the advance of the guard forming part of the said spring. The advance of the guard
causes it to cross the junction of the meeting rails of the sashes and lie at the left hand
side of and close to the jointed arm. When the jointed arm is turned back for
unfastening the sashes the heel of the said arm forces back the blade spring into such
a position that the guard no longer crosses the junction of the meeting rails of the
sashes. Thus the act of fastening the sashes brings the guard into position for use
and the act of unfastening the sashes takes the guard out of use and permits of the
opening of the sashes.
Did this and day of March 1888
W. T. WHITEMAN,
Agent for the Applicants.

page_text: An Improvement in Sash Fasteners.
We HENRY SEPTIMUS WHITEHOUSE of the firm of John Whitehouse and Sons of
Green Street, Birmingham in the County of Warwick Brassfounders and JOSIAH
CLIFFORD of South Road Birmingham aforesaid, Brass Finisher, 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 has reference to the guard used for preventing the jointed arm of the
fastener from being forced back for unfastening the sashes by a knife or other like
instrument introduced between the meeting rails of the two sashes; and the said
invention consists in making the said guard and bringing it into and taking it out of
action in the manner herein after described.
We use a jointed arm on one part of the fastener and a "quadrant" on the other
part of the fastener (under which quadrant the said arm passes to fasten the sashes) of
the ordinary kind but we so construct and modify the blade spring by which the
jointed arın is held in its fastening and unfastening positions that the said spring
besides performing its ordinary function also acts as a guard for preventing the
forcing back of the jointed arm by a knife introduced between the meeting rails of
the sashes. In place of using a nearly flat blade spring we use a blade spring the
free end of which is bent at right angles to the other part of the spring, the said bent
part constituting the guard of the fastener. The said guard has such a length that
when the spring is in its relaxed state it crosses the junction of the meeting rails of
the sashes. The acting part of the spring bears upon the flat sides of the heel of the
jointed arm in the usual way.
When the jointed arm is turned under the quadrant for fastening the sashes the
heel of the said arm permits of the advance of the acting end of the spring and also
the advance of the guard forming part of the said spring. The advance of the guard
causes it to cross the junction of the meeting rails of the sashes and lie at the left
hand side of and close to the jointed arm. When the jointed arm is turned back for
unfastening the sashes the heel of the said arm forces back the blade spring into such
a position that the guard no longer crosses the junction of the meeting rails of the
sashes. Thus, the act of fastening the sashes brings the guard into position for use
and the act of unfastening the sashes takes the guard out of use and permits of the
opening of the sashes.
Figure 1 of the accompanying Drawing represents in plan, partly in section, and
Figure 2 in end elevation a sash fastener constructed according to this Invention
applied to the meeting rails of the sashes, the said sashes being represented
unfastened; Figures and 4 represent the same views as Figures and 2 with
the sashes fastened; Figure 5 represents a side clevation of the sash fastener detached
in the position Figure 1 and Figure 6 represents the blade spring and guard of the
sash fastener detached.
The same letters of reference indicate the same parts in the several Figures of the
Drawing.

page_text: с
a is the jointed arm jointed to the part 6 of the sash fastener fixed on the meeting
rail c of the top sash and e is the "quadrant" on the part f of the sash fastener fixed
on the meeting rail d of the bottom sash, the said jointed arm a passing under the
said quadrant e to fasten the sashes as usual; 9, 9' is the blade spring by which the
jointed arm a is held in its fastening and unfastening positions, the bent or right
angled part 2 of the said spring constituting the guard of the fastener for preventing
the forcing back of the jointed arm a by a knife or other instrument introduced
between the meeting rails c, d of the sashes.
"
When the sashes are unfastened by the turning back of the jointed arm a the blade
spring 9, 9 occupies the position represented in Figures 1 and 2 and the "guard"
part of the said spring does not cross the junction of the meeting rails c, d of the
sashes as represented. But when the jointed arm a is turned under the quadrant e for
fastening the sashes the heel of the said arm a permits of the advance of the acting
or pressing end of the spring g and also of the advance of the guard g² and the latter
crosses the meeting rails c, d of the sashes as represented in Figures 3 and 4 and
prevents the forcing back of the jointed arm a by a knife or other instrument
introduced between the said meeting rails as before described.
The respective positions which the heel of the jointed arm a occupies to permit of
the advance of the spring and guard 9, 92 when the sashes are fastened and for taking
the guard out of action when the sashes are unfastened will be clearly seen by an
examination of Figures 1 and 3.
Having now particularly described and ascertained the nature of the said Invention
and the manner in which the same is to be performed we declare that we claim as the
said invention of "An improvement in sash fasteners" :-
Constructing the blade spring by which the jointed arm of the sash fastener is held
in its fastening and unfastening positions so that the said spring besides performing
its ordinary function also acts as a guard for preventing the forcing back of the
jointed arm by a knife or instrument introduced between the meeting rails of the
sashes, the said combined blade spring and guard being arranged and acting sub-
stantially as hereinbefore described and illustrated in the accompanying Drawing.
Dated the 23rd day of October 1888.
HENRY SEPTIMUS WHITEHOUSE.
JOSIAH CLIFFORD.