Improvements in Windows. proing
Year: 1898

page_text: COMPLETE SPECIFICATION.
Improvements in Windows.
We, CHRISTIAN LENZ, Engineer, of 62, Yorkstrasse, Berlin, S.W., Germany, and
JOHANNES STUMPF, Merchant, of 22, Yorkstrasse, Berlin, S.W., Germany, 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 refers in the first instance to window frames the horizontal inner
sides of which are provided with longitudinal and transverse grooves such as are
already protected by the English Letters Patent No. 11216, A.D., 1895, granted to
the above named applicants for "the vertical inner sides or posts of window frames,
for the guiding and for the vertical sliding of window sashes with laterally pro-
jecting bolts." The same relates in the second instance to a device for the
mechanical sliding of such window sashes both upwards and downwards the parts
of which are constantly accessible.
Owing to its grooves and bolt holes the arrangement described and protected.
allowed the aided sliding, the vertical displacement and the swinging open of the
window sashes turning on horizontal bolts as axes; now according to our invention
the arrangement of such grooves provided with bolt holes in the horizontal portions
(or lintel and sill) of window franes will allow the aided sliding, the horizontal dis-
placement and the opening of window sashes upon vertical bolts or axes. Moreover,
the vertical sliding of the window sashes described in the Specification of our Letters
Patent No. 11216, A.D., 1895, was inconvenient as the sashes had to be grasped
and held by the bands, and moreover it did not appear practicable to devise
mechanical lifting means in consequence of having to guide the bolt into the required
grooves, and hence the practical value of the invention was greatly impaired.
Figure 1 of the accompanying drawings shows an elevation, Fig. 1 a plan and
Fig. 1 a side view of a window the inner sides of the horizontal lintel and sill of
which are provided with the before described arrangement of grooves. This window
consists of the frame having a cross bar q and a weather proof frame ( which
simultaneously covers all the window joints. Both vertical side bars u, u¹, of the
lower window are provided with bolts which can be shot on both sides, by means
of the buttons w into the holes formed in the bar g of the frame g, and in the frame
itself, thus formning vertical axes of rotation so that each window can be opened by
turning the same to the right or to the left hand side.
As shown in the plan partly in horizontal section on line C, D, the horizontal
inner sides of the lower part of the window frame contain, at intervals between the
window bolts, the pairs of transverse grooves 1-2, 3-4 which enable the window
flaps or sashes to slide, and the holes serving to bolt the latter flaps or sashes. These
holes are arranged in three vertical bolting planes. The longitudinal grooves &
situated in the plane v connect the transverse grooves 1-2 and 3-4 and have the
same depth, so that by the aid of the shot window bolt, the sliding of the lower
window to the right or to the left hand side can be conveniently effected. The
sash bolted in the plane v can not only be opened by causing it to turn upon
its right or left handed bolt or axis, but by simultaneously drawing its bolts into

page_text: the depth of the grooves it can be guided within the transverse grooves 1-2 back-
wards as far as the plane v2 in order to be bolted thereat. Consequently it can
also be slid on to the right hand side in the groove s of the plane v and be bolted if
required at the bolting points of the transverse grooves 3 and 4; so that it can,
for instance, be brought into the position of the lower sash u¹. Reversely, the
sash can be brought by means of the cross-grooves 3-4 into the plane v adjacent
to the sash u or, in the grooved frame y, into the position of the sash u in the
plane where it can be bolted at the bolting points of the transverse grooves 1-2.
The vertical section on line A-B Figure 1 shews the frame or style g divided into
two compartments by the cross wooden bar q which frame contains an upper window
or fan light o bolted in the plane against the weather proof frame d, and a lower
window which is bolted in the plane v². The pair of transverse grooves 3-3 with
the corresponding grooves 8, 8, in the plane vis clearly shown in this view.
Should there be an arrangement for duplex windows instead of the two shown lower
sashes four such sashes or flaps, these would be bolted in pairs at the bolting points
of the transverse grooves 1-2 or 3-4 of the planes v1 or 2 and could be opened
according as required either to the right or to the left hand side. As, however,
for the purpose of ventilation in the winter, the draught of air entering through
the opening of one window only will be amply sufficient, one of the two lower
window sashes situated in the plane v2 can be guided, by means of its bolts
being drawn down into the depth of the grooves, along the transverse grooves 1-2
or 3-4 as far as the grooves s in the plane v and can be slid there sidewise towards
the left of the right hand side. When three window sashes or flaps are placed one
behind the other on one side of the window frame, there is only one window sash on
the other side of the said frame which can be opened by causing it to turn on to the
right or the left hand side according as required. The opening or swinging of the
upper window or fan light o takes place after previously withdrawing one of the two
horizontal bolts, around the upper or the lower bolt as axis.
Figure 2 of the drawings shows an elevation, Fig. 2 a plan and Fig. 2B a side
view of the window frame y described in the Specification of the English Letters
Patent No. 11216, A.D., 1895, with two sashes o and u the horizontal bars or rails of
which are provided with bolts operating on both sides. As shown in the vertical
section on line A-B, the two vertical inner sides of this window frame contain, in
the intervals between the window bolts, the transverse grooves 1-2, 3-4 wherein
the sashes slide and provided with the holes required to bolt the sashes. These holes
are also arranged in three vertical bolting planes v, v¹ and v². The longitudinal
grooves s situated in the plane v2 connect the transverse grooves 1-4 which have the
same depth, so that by the aid of the corresponding shot window bolt, the lower
sash u can be raised or the upper sash can be lowered.
In combination with this window, the invention relates secondly to a mechanical
lifting device for the window sashes furnished with bolts. The same consists of a
lifting ledge or rail h which is embedded in the lower horizontal window sill in such a
manner that its upper edge lies in the upper plane of the cross-bar. The ends of this
ledge which are provided with eyelets x engage on the left and on the right hand
side in the grooves s in which the window sash slides vertically, these eyelets x being
entered within the grooves & to the same depth as the cross groove 2, wherein the sash
bolts shot on both sides are guided. This ledge is shown on the front vertical section
at Fig. 2 and transverse vertical section at Fig. 2 and is shewn at its lowest
position. A device arranged before the cross bar and consisting of an ordinary spring
lock the tabs n of which serve for securing the ledge in its lowest position. As it
starts from under the transverse grooves 2 and hence traverses the grooves & sunk as
far as there, the window frame g is provided on its vertical front sides with the
recesses or grooves f as shown in the plan and in the section C, D, as well as in the
elevation of the plane v². These grooves extend upwardly as far as the pair of
transverse grooves 4 and accordingly the grooves s and fare connected together in
such a manner that on each side of the window frame a cord or chain can be run
throughout the whole height of the window frame. When these cords, chains or

page_text: bands are secured to the eyelets x of the lifting ledge h below and are drawn over the
roller mounted near the upper ends of the grooves as clearly shown in the
sectional elevation, their ends are fixed to metal weights G, the total weight
thereof is equal to the weight of the lifting ledge together with one of the
sashes.
When the lower sash u is drawn back from the position on the plane as shown
along the groove pair 1-2 into the vertical plane 2, and the lifting ledge is released,
the sash is guided by means of its bolt in the grooves s in an upward direction,
whereupon it can be brought on to the plane v along the groove pair 3-4 or can be
left standing at any desired height. The weights G, G, slide or drop down during
the raising of the sash in the boxes or sheaths /. In a like manner the upper sash o
which is situated in the plane vi can, after the lifting ledge h has been freely raised
as far as to strike against the groove pair 2, be brought along its cross grooves 3-4
on to the plane 2 and be sank in the grooves until the lifting ledge is automatically
held as soon as the upper sash o reaches the bottom or lowermost position of the
sash u.
When the window frame is provided with double sashes the outer lower sash u
provided with leaves or flaps remains bolted in the plane v¹, and it can be opened
so soon as the inner lower sash is raised by means of the lifting ledge to the
height of the upper sash.
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:-
1. The arrangement of grooves with holes for the vertical inner sides of a
window frame such as described in the specification of our Letters Patent No. 11216,
A.D., 1895, for bolting window sashes in the horizontal inner sides of a window
frame, for the purpose of laterally sliding, opening or fixing window sashes by means
of the bolts known as having been arranged in the vertical parts of the window
frame.
2. The arrangement of a raising device accessible in all its parts and consisting
of a lifting rail or ledge furnished with tabs and weighted, the cords, chains or
bands of which are guided in accessible grooves in combination with the window
frame protected by the Letters Patent No. 11216, A.D., 1895, and provided with
grooves formed in its vertical inner sides for the vertical raising and lowering of any
window sash with horizontal bolts as axes.
1000
CRUIKSHANK & FAIRWEATHER,
Chartered Patent Agents, 62, Saint Vincent Street, Glasgow,
Agents for the Applicants.