Improvements in and relating to. Window Sashes.
Year: 1894

page_text: Date of Application, 20th July, 1894-Accepted, 25th Aug.,
1894
COMPLETE SPECIFICATION.
Improvements in and relating to. Window Sashes.
I WILLIAM GIBBIN Junior of 21 to 24, Pickering Place, Bayswater, London,
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 :-
My invention relates to improvements in window sashes and consists firstly of
improvements upon the raising gear described and shown in the Specification of
my former Letters Patent No. 157 granted to me the 24th day of January, 1894,
and secondly of improved mechanism whereby the window sash, which while
capable of being raised or lowered in the ordinary manner, can also be turned or
swung over on pivots for the purpose of cleaning the said sash when necessary.
My improved gearing consists of a combination specially designed by means of
which the window, when it has been raised or lowered, will be retained in the
desired position without any catch or stop being necessary, while the object of the
sash tilting or turning mechanism is for the purpose of enabling the said sash to
be more easily cleaned etc. as hereinbefore described.
which
In carrying my invention into practical effect, my improved raising and lowering
gear is arranged within a suitable case of metal, and consists of a bevel toothed
wheel furnished centrally with a squared recess into which enters the end of the
operating key or handle, the said wheel gears with a smaller bevel toothed wheel
formed integrally with, or secured to one end of a short worm or screw,
latter engages with a larger toothed wheel partly projecting through the front of
the enclosing case, and engaging with the rack let into the side of the window
sash, so that when the said wheel is operated by the aforementioned bevel wheels
and worm the window sash may be raised or lowered as desired, the case containing
this mechanism being let into the window frame so as to conveniently engage with
the aforesaid rack extending along one said of the window sash. The raising
gear is operated by means of a suitable handle or key the squared end of which
enters the recess in the first mentioned bevel wheel, while in places where the
windows are at a considerable height from the ground, a toothed wheel may be
formed integrally with, or secured to the axis of, the first mentioned bevel wheel
and connected by means of a chain to a second toothed wheel placed in any'
convenient position so as to be within easy reach of the operator, so that upon
actuating the second wheel, the motion will he communicated by means of the
chain to the first mentioned toothed wheel, which in its turn actuates the bevel.
wheels and gear.
\
In order that the sash may be caused to turn or revolve for cleaning and other
purposes, it is furnished on each side with a loose sliding style fitting closely
against the sides of the said sash which latter is supported between the said styles.
by means of a pivot on either side so as to be free to turn, the aforesaid styles.
sliding within grooves within the frame in the usual manner, the outside of one of
them being furnished with the rack for the purpose of raising or lowering same,
while the upper and lower ends of the other style is furnished with a small wheel
or roller to prevent the window sash from jambing when being raised or lowered.
Each style is furnished at the side against the window sash with a groove or recess
extending nearly the whole length of same while the sides of the window sash are
also furnished with corresponding recesses of at least twice the depth of those in
the styles.
Within these recesses a slip of wood or other suitable material is placed one
on either side of the window sash and of such a width that they may be wholly

page_text: contained within the recesses of the window sash so that the latter may be free to
pass the styles and thus turn in or out on the pivots, or the said slips may be
contained half within the grooves of the sliding styles and half within the grooves
of the window sash,thus preventing the latter being turned..
The strips are attached to short pieces of metal or hinges which are pivoted at
one end to the window sash the other end being secured to the slips by means of
long pins passing through slots in the window sash, while the strips are moved
backwards and forwards by means of a pin furnished at one end with a knob and
working through a slotted metal plate.
In order that my invention may be more fully understood, I will now proceed to
describe same with reference to the accompanying drawings in which
Fig. 1 is a plan of the raising and lowering gear with the cover removed,
Fig. 2 being a front view of same.
Fig. 3 is a side view of the operating key or handle and
Fig. 4 a diagrammatic view of the means employed for lowering or raising
windows when at a considerable height above the ground.
Fig. 5 is a front elevation of a window sash and sliding styles, the slip on the
left hand side being shown in the closed position while that on the right hand side
being shown in the position enabling the window to be opened.
Fig. 6 is a cross section through the sliding style and side of the window sash
showing the pivot on which the latter turns and the slip in the closed position,
while Fig. 7 is a similar view showing a slip of slightly different construction.
My improved raising and lowering gear consists of the bevel wheel 6 furnished
centrally with the square recess r³ so as to be operated by means of the handle or
key (Fig. 3), this wheel gears with a smaller bevel wheel b¹ carried at one end of
the screw or worms which actuates the toothed wheel w the latter in its turn
engaging with the rack r (Fig. 5) for the purpose of raising or lowering the
window sash. The method employed for operating the gear when the window is
at a considerable height is shown at Fig. 4 in which w¹ represents the toothed
wheel attached to the bevel wheel b, or carried upon the same axis, and connected
by the chain c to the wheel to which is placed in any convenient position and
actuated by means of the square recess 7 and the handle or key (Fig. 3). In
order that the window sash may turn in or out for cleaning purposes it is furnished
on either side with a sliding style which are provided with grooves or
recesses g g' extending nearly the whole length of same, while the window sash is
similarly provided on either side with grooves g³ g³.
Within these grooves are contained strips a a' hinged or pivoted to the window
sash by means of plates p and working within slots so that the slips may be
either contained partly within the grooves g g¹ of the styles and partly within the
grooves g of the window sash, thus preventing the latter from turning on the
pivots p, this position of the slip being shown at the left hand side of the window
sash (Fig. 5), or the slips a a' may be wholly contained within the grooves g³ g of
the window sash so that the latter may be clear of the styles and free to turn on
the pivots p, this position of the slip being shewn at the right hand side of the
window sash (Fig. 5). The slips are pushed backwards and forwards by means of
pins passing through slotted plates d d and which are furnished at the top with
knobs d' d.
Fig. 7 shows a modified form of slip a which in this case is intended to be
constructed of metal and formed V shaped at the front edge so as to enter a.
correspondingly shaped recess in the sliding style, and further a suitable number
of spiral springs m are placed within the grocve of the sash at the back of the
said slip where they are secured by means of screws m' for the purpose of forcing
it into the groove in the sliding style, so that upon closing the window, they
spring automatically into position, while upon pressure being applied to the window
sash they may, owing to their V shape, be forced wholly into the recesses within
the window sash so as to allow the latter to be turned in or out according as
desired.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The new or improved raising and lowering gear consisting of the screw or
worms bevel wheels and actuating wheel w combined and arranged substantially
as herein described and shown and for the purposes specified.
• not
2. The improved means of enabling a window to be turned in or out for
cleaning and other purposes consisting of the pivots p3, sliding styles s¹ s³ furnished
with grooves and the slips a a' working within the said grooves and the
grooves g g of the window sash, substantially as herein described and shown and
for the purposes specified.
3. The improvements in and connected with window sashes substantially as
herein described and shown and for the purposes specified.
F. G. CASSELL,
Of Cassell & Co.,
22, Glasshouse Street, Regent Street, London, W.,
Agent for the Applicant.