AN IMPROVED SASH FASTENER FOR WINDOWS, WHICH IS ALSO APPLICABLE FOR SECURING CASEMENTS, CUPBOARDS, OR DOORS, OR FOR OTHER SIMILAR PURPOSES
Year: 1876

page_text: LETTERS PATENT to Samuel Hill, of Southwark, in the County of Surrey, for
the Invention of "AN IMPROVED SASH FASTENER FOR WINDOWS, WHICH IS
ALSO APPLICABLE FOR SECURING CASEMENTS, CUPBOARDS, OR DOORS, OR FOR
OTHER SIMILAR PURPOSES."
Sealed the 13th March 1877, and dated the 19th September 1876.
PROVISIONAL SPECIFICATION left by the said Samuel Hill at the Office of
"
the Commissioners of Patents on the 19th September 1876.
SAMUEL HILL, of Southwark, in the County of Surrey. AN IMPROVED SASH
FASTENER FOR WINDOWS, WHICH IS ALSO APPLICABLE FOR SECURING CASEMENTS,
CUPBOARDS, OR DOORS, OR FOR OTHER SIMILAR PURPOSES."
This Invention relates to an improved self-locking sash fastener, the object of the
Invention being to afford perfect security against the lever or catch being actuated
from without the window by the insertion between the meeting bars of the top and
bottom sash frames of a thin blade knife or other instrument.
The means I employ to attain this object are very simple and thoroughly
effective, and they serve also as a means of protecting the spring of the fastener
against the access and effects of damp.
In one modification these means consist of a tumbler, a lever, and a spring. The
tumbler is bifurcated and centred in and between top and bottom extensions of the
back plate, and between its bifurcations the lever is centred, and between the two
the spring is suitably connected. The tumbler is arranged to project over the
opening between the said meeting bars, and it thus prevents the lever from being
got at in any way from the outside, and without the lever is moved the sash frames
cannot be unfastened. This peculiar arrangement of parts ensures that when the
fastening is in the locked position the inner ends of the tumbler and of the lever
bear against parts of the back plate at a distance apart, being kept in this position
by the spring, and form bearings which prevent the tumblers from being moved;
the object of the Invention is thus completely attained. The inner end of the lever
is provided with small friction wheels, which at all times bear against the said back
plate. The outer end of the lever is formed as a knob and engages with a curved
stud hook on the opposite meeting bar, and in closing gradually draws the sash
frames closer together.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Samuel Hill in the Great Seal Patent Office on the 19th March 1877.
SAMUEL HILL, of Southwark, in the County of Surrey. "AN IMPROVED SASH
FASTENER FOR WINDOWS; WHICH IS ALSO APPLICABLE FOR SECURING CASEMENTS,
CUPBOARDS, OR DOORS, OR FOR OTHER SIMILAR PURPOSES."
This Invention relates principally to an improved self-locking sash fastener, the
object of which is to afford perfect security against the lever or catch being actuated
from without the window by the insertion between the meeting bars of the top
and bottom sash frames of a thin blade knife or other instrument.
The Invention is illustrated on the accompanying Sheet of Drawings in Figures 1
to 10.
The means I employ to attain the above-mentioned object are very simple and
thoroughly effective, and they also protect the spring of the fastener against the
access and effects of damp:
"
In the modification illustrated in Figures 1 to 3 these means consist of a
tumbler 1, a lever 2, and a spring 3. The tumbler is bifurcated and centred at 4
in and between top and bottom extensions 5, 6, of the back plate 7, and between its
bifurcations the lever is centred at 8, and between the tumbler and lever the spring
is suitably connected or centred at 9. The tumbler is arranged to project over the
opening 10 between the said meeting bars 11, 12, and it thus prevents the lever
from being got at in any way from the outside, and without the lever is moved the
sash frames cannot be opened. The inner end of the lever is provided with small
friction wheels 13, which at all times bear against the back plate 7. The outer end
of the lever is formed as a knob 14, and engages with a curved stud hook 15 on
the opposite meeting bar, and in closing gradually draws the sash frames together as
usually. This peculiar arrangement of parts ensures that when the fastening is in
the locked position, as shown in Figure 1, the inner ends of the tumbler and of
the lever bear against parts of the back plate 7 at a distance apart, being kept in
this position by the spring, and form bearings which prevent the tumbler being
moved by the insertion through the opening 10 of a knife blade or other instrument,
any tendency to do so only rendering the fastening more secure.
Figures 4 to 6 illustrate another modification. The material differences between
this and the preceding modification are that in this arrangement the spring is not
placed between the tumbler and lever, but is rivetted to the back plate 7, and the
inner ends of the tumbler and the lever have their bearings against the spring
and not against the back plate, and that the outer or knob end 14 of the lever is
rounded, so that if a wire or loop were inserted between the meeting bars and
dropped over it it would slip off and could not catch or move it; and that this end
of the lever is hollowed out so that the finger can easily catch in it to fasten it, and
is provided with an under projection 16, which engages with an undercut 17 in the,
stud hook 15 and renders the fastening more secure.
Figures 7 and 8 illustrate the arrangement of the tumbler, lever, and spring as a
lock for securing casements, cupboards, doors, and drawers. In this arrangement
the tumbler acts as the bolt; it is shot out and withdrawn by the lever and spring,
the lever being actuated by a key 18, and Figures 9 and 10 illustrate the arrange-
ment of the tumbler, lever, and spring as a gun lock, showing it as it may be applied.
to the Martini-Henry rifle, or to any other breech-loading fire-arm of a similar
construction. 19 represents the positions of some of the different pins or centres
passing through the breech of the gun, and from which the location of the parts
can at once be seen; 20 represents the needle. In this arrangement the tumbler

page_text: acts as the striker or hammer; its action is similar to that of the preceding modi-
fication, save that the lever is actuated by the trigger 21; 22 represents the usual
lever.
Having now described the nature and objects of my said Invention, together with
the manner in which the same is to be or may be performed or carried into practical
effect, I would remark in conclusion that I claim as my Invention,--
1. The application, combination, and use in a window sash fastener of a tumbler,
lever, and spring, acting substantially as above described and as illustrated on the
accompanying Drawings.
2. The similar combination and use in a casement, cupboard, door, drawer, or
other lock, substantially as above described and as illustrated on the accompanying
Drawings.
And, 3. The similar combination and use in a gun lock, substantially as above
described and as illustrated on the accoinpanying Drawings.
In witness whereof, I, the said Samuel Hill, have hereunto set my hand
and seal, this Fifteenth day of March, in the year of our Lord One
thousand eight hundred and seventy-seven.
S. HILL. (L.S.)