Raising Sashes and Lowering same without Cords and Weights.
Year: 1894

page_text: Date of Application, 24th Jan., 1894
Complete Specification Left, 28th Feb., 1894-Accepted, 21st Apr., 1894
PROVISIONAL SPECIFICATION.
Raising Sashes and Lowering same without Cords and Weights.
WILLIAM GIBBIN Junior Builder and Contractor 21 to 24 Pickering Place
Bayswater, W. I do hereby declare the nature of this invention to be as follows:-
I construct my frame of solid deal instead of the usual process of framing same
in cases and rebate the edges of frame as also the sashes the sash on one edge
contains a metal cogged bar by which the sash is raised and lowered by means of a
cogged wheel working in the frame the wheel is regulated by means of a handle
worked by operator and contains a spring by which the operator can regulate the
height the sash is desired to be raised to the edge of sash opposite to the one with
cogged bar is fitted with small bevel edged wheel working in small bar fitted to
frame and with a V joint to prevent the sash jamming the sashes being rebated
all round makes them entirely draught proof the outer and inner edge of frame is
moulded to form a chase for rebated portion of sash to slide in.
and thin 94th day of January 1894.
COMPLETE SPECIFICATION.
Raising Sashes and Lowering same without Cords and Weights.
I, WILLIAM GIBBIN Junior, 21 to 24 Pickering Place Bayswater, W. Builder
and Contractor, 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 a new or improved method and means for raising and
lowering window sashes without the use of cords and weights at the same time
cheapening the cost of construction, enabling such windows to be easily raised or
lowered and retained in any desired position and further, as it is extremely difficult
to operate same from the outside additional security against burglars is afforded.
In carrying my invention into practical effect, I construct the frame of solid
wood (instead of framing same in cases) and rebate the edges of the frame and
also those of the sashes. Within one side of the frame are suitably mounted two
toothed wheels actuated by means of handles, the said toothed wheels gearing with
two long metal toothed racks let into the sides of the window sashes.
At the opposite side of each window sash to that provided with the toothed rack,
I mount two small wheels or rollers one at the top and one at the bottom of the
said sash which enter into and are free to move up and down within a slot formed
in a metal bar attached to the window frame, when the sashes are raised or lowered,
for the purpose of preventing them jambing. These wheels or rollers may consist
simply of a disc of metal entering a square cut slot in the aforementioned bar, or
bevel edged wheels may be employed, in which latter case the slot or groove in the
metal bar would be V shaped.
The spindles upon which the toothed wheels are mounted pass through circular
metal plates provided with a series of holes or perforations near the edge of same.
The handles which are attached to the said spindles are formed of some springy
material and furnished with a downwardly projecting stud which engages with
the aforementioned holes formed around the edge of the circular plates, so that by

page_text: lifting the handles and raising the stud clear of the holes or perforations, the
handles are able to be turned thereby rotating the toothed wheels and raising or
lowering the sashes as desired, the said sashes being locked in the required position
by allowing the stud to enter one of the aforementioned holes or perforations, the
handles being hinged at about half their length so as to be capable of folding over
and occupy very little space.
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. I is a sectional view showing a window sash fitted with my new or improved
device and Fig. 2 is a diagrammatic view of a window showing the positions of the
various parts,
Fig. 3 shows the actuating view in plan and central section,
Fig. 4 shows corresponding views of the rack,
Fig. 5 is a plan of the circular plate with handle for revolving the toothed
wheel,
Fig. 6 shows the bearing supporting the toothed wheel spindle and
Fig. 7 is a side view of a box or bearing carrying roller or wheel.
Like letters of reference indicate corresponding parts throughout the drawings.
My improved device consists of the toothed wheel w mounted upon the spindle s
and supported at one end in the bearing d the said toothed wheel working in a
recess formed in the window frame and engaging or meshing with a rack r let
into one side of the window sash.
The spindle passes through a circular metal plate p provided with a series of
holes or perforations p¹ formed near the edge of same the spindle being at that
point provided with a handle h furnished with a downwardly projecting stud s¹
which can enter the aforementioned perforations p' in the plate p, the handle being
hinged at about half its length h¹ so as to be apable of folding over and occupying
but little space, the knob k entering the recess g formed in the boss of the handle
for that purpose.
F
My improved device is actuated by first raising the stud s¹ clear of the holes
or perforations pl formed in the plate p and then rotating the handle h the motion
being communicated by the spindle s to the toothed wheel w gearing with the
rack so that the window sash is either raised or lowered according to the direction
in which the said handle is turned, and in order to prevent the window sash from
jambing it is furnished upon its opposite side with two small wheels or rollers let
into slots a in a small box or frame f which in their turn are let into the side of
the window sash one at the top and one at the bottom of same in such a manner
that the wheel or roller projects a short distance and enters a longitudinal slot
formed in a bar or strip of metal b affixed to the side of the window frame.
Instead of the downwardly projecting stud s' for locking the handle h I may
furnish the said handle with a hole or perforation in such a manner and at such a
distance from the centre that the hole in the handle h will pass directly over those
formed in the plate p through which a separate pin of suitable size may be passed,
the said pin being attached to a projection of the plate p by means of a small
piece of chain so as to be always handy and ready for use.
My improved window is further quite draught proof as the frame is solid, the
sashes sliding in grooves formed therein whilst the beading o surrounding the
frame on the outside effectually prevents the entrance of draught, dirt, damp, &c.
With large sashes it will sometimes be found that a difficulty is experienced in
raising same owing to the weight, and in order to obviate this I may employ a
second toothed wheel w² engaging with and of smaller diameter than the one
gearing with the rack (as shown in dotted lines in Fig. 2) and in this case the
smaller wheel is mounted upon a suitable spindle let into the window frame the
end of which would be provided with the actuating handle instead of the said
handle being attached to the spindle upon which the larger wheel is mounted.
By this system of gearing very little power will be required for raising or lowering
the sashes.

page_text: Having now particularly described and ascertained the nature of my said.
invention and in what manner the same is to be performed, I declare that what I
claim is :-
1. The new or improved device for raising and lowering window sashes consisting
of the toothed wheel w and rack r, in combination with handle with projection.
or stud s, perforated plate p, wheels or rollers w' and grooved bar 6, substantially
as berein described and for the purpose set forth.
2. In a device such as above described for raising and lowering window sashes,.
the employment of a second toothed wheel w² for decreasing the power required
for operating same, substantially as herein described and shown and for the purpose-
set forth.
3. The new or improved device for raising and lowering window sashes arranged,
constructed, and operated, substantially as herein described and shown and for the
purpose set forth.
F. G. CASSELL,
Of Cassell & Co.,
22, Glasshouse Street, Regent Street, London, W.,.
Agent for the Applicant.