Year: 1897

page_text: I, WILLIAM RANKIN, of Watlington, Downham Market, Norfolk, Road Surveyor,
do hereby declare the nature of this invention to be as follows:-
This invention relates to an improved sash fastener designed to be secure from
attempts at opening from the outside, and to draw the sashes together.
In carrying ont this invention a hollow arin or case square in section is pivotted on
the outer sash meeting-rail. Inside this pivotted case is placed a bolt controlled by a
coil spring. One end of the bolt projects out at the free end of the pivotted case and
is furnished with a milled head. The other end of the said bolt is designed to pass
into a hole which is drilled in the fixed pivot on the outer sash round which the arm
revolves. The hole in the pivot is placed in such a position as to admit of the holt
passing into it when the fastener is closed. To further secure the fastener a small
spring bolt is mounted on the top of the pivotted case which small bolt. passes down
into a groove out in the bolt within the case. The bolt within the case is furnished
with one or two turns of screw-thread which admits of it being revolved until the
groove comes under the small spring-holt aforesaid.
A catch or hasp is mounted on the inner sash rail somewhat similar to that
used in ordinary fasteners, and the inner surface of the said catch is curved, but
struck from a different ceutre to that on which the pivotted arm works so that when
the latter is placed within the basp the sashes are drawn together by means of a
projecting stud-portion on the top of the pivotted arm which binds on to the curved
edge of the haap.
Dated this 80th day of November 1897
I, WILLIAM RANKIN, of Watlington, Downham Market, Norfolk, Road Surveyor,
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
0 statement:-
This invention relates to an improved sash fastener designed to be secure from
attempts at opening from the outside, and to draw the sashes together.
In carrying out, this invention a hollow arm or case square in section is pivoted on
the outer sash meeting rail. Inside this pivoted case is placed a bolt controlled by a
[Pris 8d.1

page_text: coil spring. One end of the bolt projects out at the free end of the pivoted case and
is furnished with a milled head. The other end of the said bolt is designed to pass
into a hole which is drilled in the fixed pivot on the outer sash round which the arm
revolves. The hole in the pivot is placed in such a position as to permit of the bolt
passing into it when the fastener is closed. To further secure the fastener a small
spring bolt is fastened on the top of the pivoted case which small bolt passes down
into a groove cut in the bolt within the case. The bolt within the case is furnished
with one or two turns of screw-thread which adınits of it being revolved until the
groove comes under the small spring-bolt aforesaid.
A catch or hasp is mounted on the inner sash rail somewhat similar to that
used in ordinary fasteners, and the inner surface of the said catch is curved, but.
struck from a different centre to that on which the pivoted arm works so that
when the latter is placed within the hasp the sashes are drawn together by means
of a projecting stud portion on the top of the pivoted arm which binds on to the
curved edge of the hasp.
Referring to the accompanying sheet of illustrative drawings, Fig. 1 is an
elevation of a sash fastener constructed according to this invention and Fig. 2
is a plan thereof.
The arm a pivoted at b and provided with an operating knob c is hollow and within
it is arranged a bolt a controlled by spring e. The bolt d projects out at one end
beyond the arm a and is provided with a milled head d, while the other end is
arranged to pass into the hole b¹ formed in the pivot b. This hole is placed in
such a position as to admit of the bolt d passing into it when the fastener is
closed.
To further secure the fastener a small spring bolt f is mounted on the top of the
arm a, and the bolt is provided with a groove g into which the spring bolt ƒ will
engage. The bolt d is provided at d with. a few turns of screw-thread so that when
revolved slightly the groove g is brought under the spring bolt f and secured in
position thereby.
The catch or hasp h on the other sash rail is somewhat similar to that used in
ordinary fasteners, and the inner surface of the said catch his curved, but struck
from a centre other than the pivot b on which the arm a works so that when the
latter is turned to engage with the catch the sashes are drawn together by means
of the projection i on the arm a which binds on the curved edge of the catch h.
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 :-
(1) An improved sash fastener consisting of a hollow pivoted arm in which is
arranged a spring bolt, adapted to engage with a hole in the pivot when in the
fastening position and a small spring bolt adapted to engage with the first mentioned
spring bolt so as to further secure it in the fastening position substantially as
described.
(2) An improved sash fastener consisting of the hollow pivoted arma, spring
bolt d arranged therein, and adapted to engage with the hole b¹ in the pivot b, spring
bolt fadapted to engage with groove g formed in spring bolt d, said spring bolt a
being formed with screw thread d', and catch or hasp h curved so that when
projection on arm a engages therewith the meeting rails of the sashes are
drawn together substantially as described, with reference to the accompanying
drawings.
Dated this 19th den of Tohmin 1900
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.