IMPROVED APPARATUS FOR RAISING AND LOWERING WINDOW SASHES
Year: 1871

page_text: LETTERS PATENT to John James: Cousins; of Allerton Park, Chapel
Allerton, near Leeds, in the County, of York,, Gentleman, for the
Invention of "IMPROVED APPARATUS FOR RAISING AND LOWERING WINDOW
SASHES."
Sealed the 16th April 1872, and dated the 18th. October 1871.
PROVISIONAL SPECIFICATION left by the said John James Cousins
'
at the Office, of the Commissioners of Patents, with his Petition,
on the 18th October 1871.
I, JOHN JAMES COUSINS, of Allerton Park, Chapel Allerton, near
5 Leeds, in the County of York, Gentleman, do hereby declare the nature
of the said Invention for "IMPROVED APPARATUS FOR RAISING AND LOWERING
WINDOW SASHES” to being follows :-
PROVISIONAL SPECIFICATION left by the said John James Cousins
at: the Office of the Commissioners of Patents, with his Petition,
on the 18th October 1871.
I, John James COUSINS, of Allerton Park, Chapel Allerton, near
Leeds, in the County of York, Gentleman, do hereby declare the nature
of the said Invention for “IMPROVED APPARATUS FOR RAISING And Lowering
Winnow Sagues” to be as follows –
:
The object of this Invention is to facilitate: the raising and lowering
of window sashes independently of: each other and to lock them in any
given position.

page_text: In carrying out this object I fit the sashes in vertical guides, which
guides I slot to receive racks, which are carried by the side bars of the
sashes, and allow the same to slide in the said grooves. Each sash is
provided with a pair of these racks, into the teeth of which gear worms
carried by vertical worm shafts mounted in the boxes of the window
frame. These shafts are driven by means of a winch´handle and bevil
gearing, or a chain and wheels situate below the window. As a sub-
stitute for the racks tapped nuts may be used, the same being mado fast
to the sash bars. But in this case the worm must be continued equal to
the lenght of the traverse required for the sash. The like mechanism
will be required for each sash to ensure their independent action.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John James Cousins in the Great Scal Patent
Office on the 17th April 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOIN
JAMES COUSINS, of Allerton Park, Chapel Allerton, near Leeds, in the
County of York, Gentleman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Eighteenth day of October, in the year
of our Lord One thousand cight hundred and seventy-one, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said John James Cousins, Her special
licence that I, the said John James Cousins, my executors, adminis-
trators, and assigns, or such others as I, the said John James Cousins,
my executors, administrators, and assigns, should at any time agree with,
and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise,
and vend, within the United Kingdom of Great Britain and Ireland,
the Channel Islands, and Isle of Man, an Invention for "IMPROVED
APPARATUS FOR RAISING AND LOWERING WINDOW SASHES," upon the condition g
(amongst others) that I, the said John James Cousins, my executors
or administrators, by an instrument in writing under my, or their, or
one of their hands and seals, should particularly describe and ascertain

page_text: Office within six calendar months next and immediately after the date
of the said Letters Patent.
NOW KNOW YE, that I, the said John James Cousins, do hereby
declare the nature of my said Invention, and in what manner the same
is to be performed, to be particularly described and ascertained in and
by the following statement, reference being had to the Drawing here-
unto annexed, and to the letters and figures marked thereon (that is
to say) :-
The object of this Invention is to facilitate the raising and lowering of
window sashes independently of each other and to lock them in any
given position.
In carrying out this object I fit the sashes in vertical guides, which
guides I slot to receive racks, which are carried by the side bars of the
sashes, and allow the same to slide in the said grooves. Each sash is
provided with a pair of these racks, into the teeth of which gear worms
carried by vertical worm shafts mounted in the boxes of the window
frame. These shafts are driven by means of a winch handle and bevil
gearing, or a chain and wheels situate below the window.
In the accompanying Drawing Fig. 1 shows in front elevation a saslı
window fitted according to my Invention, the boxes of the window
frame being drawn in partial section to show the raising and lowering
mechanism. Fig. 2 is a vertical section taken in the line 1, 2, of Fig. 1,
and Fig. 3 is a sectional plan view taken in the line 3, 4, of Fig. 1.
a, a', are the window sashes fitted at their sides with racks .b, b'; .
c, c, c³, c', are vertical spindles fitted severally with worms d, d', which
worms take into their respective racks b, b', for the purpose of raising or
lowering the sashes when rotary motion is given to their spindles. These
spindles are severally mounted in a foot step e, and are supported at their
upper ends by a bearing plato f. The spindles at their lower ends are
fitted with bevil pinions h, h', into which gear pinions i, i³, on horizontal
shafts k, k³, mounted in bearings in a box formed to receive them below
the window frame. These shafts k, k', may extend in one length from
onc end of the box to the other, but in the Drawing they are shewn as

page_text: divided at about the middle of their length and fitted with bevil pinions ·
into which respectively gear bevil pinions m, m³, mounted on short
axles n, n, carried by standards o. These axles are squared at their:
outer ends to receivo a winch handle p, Fig. 2, by means of which.
cither sash may, through the gearing above described, be raised or b
lowered as desired. In order to raise or lower the lower sash a the
winch handle is fitted on to the axle n, and rotary motion is given.
thereto to the right or left according to whether the sash is to be raised*
or lowered. When however the upper sash a' is required to be operated
upon the winch handle is shifted to the axle n³, and rotary motion is 1
imparted through it to the second set of gearing in connection with tho
racks of the upper sash and a like action is produced. To whatever
position these sashes are moved they will be locked, and they cannot
therefore be raised or lowered unless access is obtained to the interior
of the apartment. Thus the use of the fastenings ordinarily applied to 1
windows for securing them against burglars will by this Invention be
rendered unnecessary.
Fig. 4 shows in sectional plan view a modified arrangement for
imparting rotary motion to the worm spindles by means of chains, and
Fig. 5 is a transverse vertical section of the same. The worm spindļes 2
instead of being fitted with bevil pinions are provided with chain
wheels q, q', which are driven by endless chains 7, 7¹. Those chains by
connecting together the chain wheels of cach pair serve when driven to
give their respective spindles simultaneously rotary motion in the same.
direction, and thereby through the worms and racks to raise or lower the 2
window sashes. Motion is given to the chains ", "", by means of chain
wheels 8, 8, mounted loosely on studs carried by bracket pieces t, t.
The bosses of these chain wheels are each fitted with a bevil pinion,
into which gear respectively bevil pinions keyed on to transverse
axles u, u', which axles turn in the bracket bearings t, . In order to 3
prevent the chains from swaying and to retain them in gear with their
respective chain wheels 8, 8', supports v, v², are provided for them. The
ends of the axles u, u¹, are squared to receive the winch handle for
turning the chain wheels 8, 8', and thereby giving rotary motion to the
pairs of screw spindles c, c'.
Having now set forth the nature of my Invention of " Improved
Apparatus for Raising and Lowering Window Sashes, and explained
3

page_text: the manner of carrying the same into effect, I wish it to be understood
that under the above in part recited Letters Patent I claim, the raising
and lowering of window sashes independently of each other, and of
locking them in any given position by the means above described with
motorance to the ima
and lowering of window sashes independently of each other, and of
locking them in any given position by the means above described with
colorence to the Drawings
In witness whereof, I, the said John James Cousins, have hereunto
set my hand and seal, the Sixteenth day of April, in the year
of our Lord One thousand eight hundred and seventy-two.
salorance to the Immo
In witness whereof, I, the said John James Cousins, havo hereunto
set my hand and seal, the Sixteenth day of April, in the year
of our Lord One thousand eight hundred and seventy-two.