Improvements in or Appertaining to Fastening Devices for Window Sashes, Folding Doors, or the like.
Year: 1889

page_text: Date of Application, 21st May, 1889-Accepted, 6th July, 1889
COMPLETE NECIFICATION.
Improvements in or Appertaining to Fastening Devices for Window
Sashes, Folding Doors, or the like.
A communication from abroad by MAX GOLDMANN, of Smichov, near Prague, in the
Empire of Austria, Machine Manufacturer.
I, WILLIAM PHILLIPS THOMPSON F.C.S. M.I.M.E. of the Agency for Foreign
Patent Solicitors 6 Lord Street, Liverpool and 6 Bank Street Manchester both in
the County of Lancaster and 323 High Holborn in the County of Middlesex, Civil
Engineer, 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 :-
The object of this invention is an apparatus for fastening window sashes or folding
doors, and the principle of the invention consists in this, that when a closing knob
is pushed in a horizontal direction, two fastening rods or movable bolts, connected
with the said knob by jointed links, are moved in a vertical direction, either raised
or lowered..
Referring to the drawings which show the improved fastener as applied to the
sash of a folding window :-
Figure 1 shows a section of a window sash covering ledge, with the closing
apparatus in position when the window is open.
Figure 2 the same with the window closed.
Figure 3 is a plan view of Figure 2 in the direction of the arrow 3, parts being
removed for the sake of clearness.
Figure 4 is a cross section through Figure 1.
S is the sash ledge fixed to the window frame R (Figure 4) through the middle
of which passes a horizontal leading rod a which ends in a knob or handle k.
This main rod a which traverses a sheet metal guard p (Figures 1, 2 and 4) fixed
on the sash ledge S, terminates in a flat plate 6 which is guided in a rectangular
slit in the covering plate fixed on the back of the sash ledge, and it is further
supported between two guiding lugs 99 which are rivetted to the inside of the
covering plate h. The sash covering ledge S itself contains a hollow m destined to
receive the mechanism; d d are the fastening bolts lying within the sash ledge
cover, and capable of being pushed upwards and downwards, and which are guided
by the brackets fƒ fastened on the covering plate h.
These two fastening rods d d are connected with the horizontally movable plate b
by means of two links c c. turning on pivots at 1 and 2, and it will now be clear
that if (Figure 1) the knob k is pushed in or pressed horizontally, the apparatus
assumes the position shown in Figure 2, the upper fastening rod d being raised
and the under one lowered. The ends of the fastening rods d d are pressed into
the slots provided in the window frame, and the windows are fastened thereby. If,
as in Figure 2, the knob k is horizontally drawn outwards, the whole apparatus
returns to the position shown in Figure 1, the upper fastening rod descends and
the lower one rises, and the window can be again opened. The window is therefore
closed by a simple pressure on the knob k, and opened by simply pulling out
the same.
Having now particularly described and ascertained the nature of the said inven
tion, and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is :-
1. A fastener for window sashes or folding doors, consisting of two bolts or
rods d d resting in a hollow of the sash ledge S, and capable of being moved vertically,
and which are connected by means of movable hinged joints cc with a rod b capable of

page_text: being pushed in a horizontal direction, in such a manner that when this said rod is
pushed in a horizontal direction the fastening rods make a movement in a vertical
direction, substantially as described and shown.
2. The improved fastener for window sashes, folding doors, or the like, taken as a
whole, substantially as described and for the purposes set forth.
WM. P. THOMPSON & Co.,
Agents for the Applicant.