Year: 1889

page_text: :
Date of Application, 29th Mar., 1889-Accepted, 4th May, 1889
We WILLIAM JOHN THOMAS of 6 Roslyn Villas Cowper Road Redfield Bristol
Accountant and WILLIAM STRONG of 12 Lippiatt Buildings St. George Bristol
Coach-builder 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 is-designed relates to form a simple and safe automatic Window
Fastening though it may be applied to other purposes if found desirable.
Referring to the Drawings herewith
Figure 1, is a side elevation of the window Fastening.
Figure 2, is a side elevation with Fastening the fastener raised for the purpose of
rotating the window fastening to allow of opening the Window.
Figure 3, is a plan of the window fastening in position across the Window sash.
Figure 4, is a plan of the window fastening in position for opening the Window.
Figure 5, is a side elevation of the top casting B.
Figure 6, is a side elevation of the bottom Casting A.
Figure 7, is a plan of the Plate C.
Figure 8, is a plan of the Plate D.
The window fastening comprises four pieces of Metal, two castings, and two
plates, preferably iron or brass as shewn in detail by Figures 5, 6, 7 and 8. Round
the top edge of A a rim The casting A is formed which extends round point-O-inside
of which B drops thus making with a raised edge so as to partly enclose the Casting B
in order to make the Fastening more secure. The castings A and B are attached to
each other by means of the pivot G passing through the projection E which projects
from beneath the Casting B passing through a slot in the Casting A as shewn by dotted
lines F in Figure 6 through which-pivot & passes-round which being provided for the
purpose. Upon this pivot G the projection E turns when the Casting B is required to
be raised as shewn in Figure 2. Underneath On the underside of the Casting
at a suitable distance from the end, is a projection or pivot H and by means of this
pivot F the castings A and B are attached to the plate D; the pivot passing through
the plate D and then being burred over on a metal washer underneath the plate / as
H
and

page_text: shewn by dotted lines at Ion Figure 2....This-pivot. H.must be loose enough to admit
of the castings A and B being turned easily on it or if found necessary a nut may be
screwed on the end of the pivot H to secure it to the plate D. J is a portion of the
plate D which turns up to form a stop which prevents preventing the castings A and B
from turning right-round-and too far; it keeps them in proper position when the
window is required to be open or shut as shewn in Figures 3 and 4 Figure 3 shews
the Fastening across the both the window sashes K and L in position to secure the
window. Figure 4 shews the Fastening turned back against the stop J to admit of the
window being opened.. The square slot M in the plate C is formed for the purpose of
allowing the projection E dropping to drop automatically into it when brought round
in position across the sashes as shewn in Figure 3-the end of the projection E being
turned or notched for the purpose of forming a catch. When the projection E drops
into the slot M this notch N secures itself under the plate C in such a manner that it
would be impossible to move the castings A and B either way without pressing down
the end of the casting B at the point O which raisesing the opposite end as shewn in
Figure 2 to enable it them to turn on the pivot Hand-raises with the projection E raised
out of the slot M in the plate C. Then it is they are turned back against the stop J
and the projection E drops into another slot P in the plate D which keeps it in position
whilst the window is being opened and shut. The plate D with attachments A and B
is fixed to the top sash L whilst and the plate C is fixed to the bottom sash K as
shewn in Figures 3 and 4 by means of screws through holes Q as shown in Figures 7
and 8. A and B may be cast to any design-either plain or ornamentul if found
necessary-without-altering the principle of the Invention.
Having now particularly described and ascertained the nature of our said Inven-
tion and in what manner the same is to be performed we declare that what we
claim is
That by The combination of the parts hereinbefore-described and shewn by the
Drawings in Figures 5, 6, 7 and 8 the piece of Metal ensting B which fits inside-of
the rim round the top of A with projection E-passing through a slot in A-and
attached thereto by means of a pivot round which projection E-turns, projection-
being made to form a enteh by means of a notch at point N which drops automatically
into slot M us shewn by Figure 1 for the purpose of more effectually securing the
Window: Castings A and B to be turned on pivot F round on plate Ď substantially
ns-described-and-shewn-on-the-Drawings in Figures 3 and 4 operating in the manner
| described for safely and securely fastening windows.
Dated this Thanky sighth
... 1. 1000
WM. J. THOMAS.
WM. STRONG..