AN IMPROVED SASH FASTENER
Year: 1878

page_text: › LETTERS PATENT to Robert Waycott, of Paignton, in the County of Devon,
Ironmonger, for the Invention of "AN IMPROVED SASH FASTENER."
And the 20th Danamber 1978 ond dated the 24th June 1878
PROVISIONAL SPECIFICATION left by the said Robert Waycott at the Office
of the Commissioners of Patents on the 24th June 1878.
ROBERT WAYCOTT, of Paignton, in the County of Devon, Ironinonger.
IMPROVED SASH FASTENER."
'AN
The object of this Invention is the construction of a simple, cheap, and effective
sash fastener which cannot be opened from the outside either by the use of a knife
or wire.
In carrying out my Invention I provide the knob of the arm or lever of the sash
fastening with a catch, a corresponding slot being made in the outside edge of the
usual curved plate or guide. The knob is secured to the arm by a pin on which the
knob pivots, a pin being provided to act as a stop to limit the amount of angular
motion of the knob. The weight of the knob keeps it in its vertical or normal
position, but if necessary a spring may be employed for that purpose. The edge of
the curved plate or guide, and the bottom edge of the catch of the knob, are
bevilled for the purpose herein-after described. The other parts of the fastener are
of the ordinary construction.
This improved sash fastening acts in the following manner :-To close the fastening
the arm or lever is turned in the ordinary way by pulling the knob forward, and
the bevilled edge of the catch meeting the bevilled edge of the curved plate or
guide, the catch and knob are raised or partly turned on the herein-before described
pivot, and pass along the curved plate until the slot therein is reached, when the
catch drops into the said slot, by the knob retaking its vertical position, and the
fastening is secured.

page_text: To open the fastening the knob is pulled slightly forward (which is done
naturally) so as to raise the catch out of the slot in the curved plate, when the arm
can be turned back in the ordinary manner.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Robert Waycott in the Great Scal Patent Office on the 24th Decem-
ber 1878.
ROBERT WAYCOTT, of Paignton, in the County of Devon, Ironmonger.
IMPROVED SASH FASTENER.'
"AN
The object of this Invention is the construction of a simple, cheap, and effective
sash fastener which cannot be opened from the outside either by the use of a knife
or wire.
In carrying out my Invention I provide the knob of the arm or lever of the sashi
fastening with a catch, a corresponding slot being made in the outside edge of the
usual curved plate or guide. The knob is secured to the arm by a pin on which the
knob pivots, a pin being provided to act as a stop to limit the amount of angular
notion of the knob. The weight of the knob keeps it in its nearly vertical or
normal position. The edge of the curved plate or guide, and the bottom edge of
the catch of the knob are bevilled for the purpose herein-after described. The
other parts of the fastener are of the ordinary construction.
But to make my Invention better understood, I will proceed to describe the same
by reference to the accompanying Drawing, in which,-
Figure 1 is a plan of my improved sash fastener opened; Figure 2, plan of the
same closed; Figures 3 and 4 are elevations of Figures 1 and 2 respectively.
Figure 5, end view of the fastener closed, and Figure 6 eud view shewing the
handle pulled forward to allow of opening the fastener.
Figure 7 is a perspective view of the fastener.
Similar letters in all the Figures represent similar parts.
a is the knob of the arm or lever b of the sash fustener; c, the catch on the knob;
is the slot in the curved plate or guide f; g is the pin in the arm b, and on which
the knob a pivots, the knob being so set on the pin, or weighted, as to always fall
inwards out of the vertical line when in its normal position. is the pin or projec-
tion on the knob to limit the amount of angular motion of the knob in the opposite
direction; is the bevilled edge of the curved plate or guide f, against which works
the bevilled edge of the catch c of the knob a.
This improved sash fastening acts in the following manner: To close the
fastening the arm or lever b is turned in the ordinary way by pulling the knob a
forward, and the bevilled edge of the catch c meeting the bevilled edge i of the
curved plate or guide f, the catch c and knob a are raised or partly turned on the
herein-before described pivot g, and pass along the curved plate until the slot d

page_text: therein is reached, when the knob a being weighted, as herein-before described,
drops forward and its catch c falls into the said slot d and the fastening is secured.
To open the fastening the knob a is pulled slightly forward (which is done
naturally) as shown in Figure 6, so as to raise the catch c out of the slot d in the
curved plate f, so as to allow the arm 6 to be turned back in the ordinary manner.
Having thus described my Invention, and the best means I am acquainted with
for carrying the same into effect, I wish it to be understood that what I claim is, the
improved sash fastener heroin-before described, having a weighted pivotted knob
with a bevilled catch working against the bevilled edge of the guide so as to
automatically raise the knob when the fastener is being closed, the catch of the
knob taking automatically into the slot in the arm by the falling of the knob,
substantially as and for the purposes herein-before described, and represented in the
accompanying Drawing.
In witness whereof, I, the said Robert Waycott, have hereunto set my hand
and seal, this Twenty-first day of December, in the year of our Lord One
thousand eight hundred and seventy-eight.