Improve- MENTS IN THE MEANS OF AND APPARATUS FOR BALANCING SECURING AND FASTENING SLIDING WINDOW SASHES OF RAILWAY CARRIAGES AND OTHER LIKE SASHES " PROVISIONAL SPECIFICATION
Year: 1883

page_text: LETTERS PATENT to Joseph Benjamin Adams and John Telford both of the
City of Liverpool in the County of Lancaster for an Invention of “Improve-
MENTS IN THE MEANS OF AND APPARATUS FOR BALANCING SECURING AND
FASTENING SLIDING WINDOW SASHES OF RAILWAY CARRIAGES AND OTHER
LIKE SASHES
"
PROVISIONAL SPECIFICATION left by the said Joseph Benjamin Adams and
John Telford at the Office of the Commissioners of Patents on the 4th April
1883.
88
JOSEPH BENJAMIN ADAMS and JOHN TELFORD, both of the City of Liverpool,
in the County of Lancaster IMPROVEMENTS IN THE MEANS OF AND APPARATUS
FOR BALANCING, SECURING AND FASTENING SLIDING WINDOW SASHES OF RAILWAY
CARRIAGES, AND OTHER LIKE SASHES
"
Our Invention has 'for its object an improved means of and apparatus for
securing, balancing and fastening sliding window sashes of Railway Carriages and
other like sashes such as the sashes of cabs, carriages, tramcars, steamers saloon
windows and the like and provides a means whereby the window sash will remain
in any position in which it may be placed and also provides for securing and
fastening the window sash when necessary in any open position and when closed.
In carrying out our Invention we use a toothed rack on each side of the window
sash and we use a balance weight provided with racks similar to the racks on the
window sash. The racks on the window sash and the racks of the balance weight
are so connected by toothed pinions that the balance weight holds the sash in
whatever position it may be placed.
"
An example of this arrangement consists of a window sash with a rack on each
side, and a horizontal balance weight from the ends of which spring two vertical
racks which racks correspond with the racks on the window sash. The racks of
the balance weight and the racks of the window sash are connected and geared
together by duplex pinions fixed in the window frame and gearing into each other
so that as the window sash is raised the balance weight is lowered and as the
window sash is lowered so the balance weight is raised.
As a means of securing and fastoning a pin, key, or like device may be inserted
between the teeth of the pinions, or the teeth of the racks, which device will fasten,
or hold the window sash in any open, or in a closed position

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Benjamin Adams and John Telford in the Great Seal
Patent Office on the 3rd October 1883.
JOSEPH BENJAMIN ADAMS and JOHN TELFORD, both of the City of Liverpool,
in the County of Lancaster "IMPROVEMENTS IN THE MEANS OF AND APPARATUS
FOR BALANCING, SECURING AND FASTENING SLIDING WINDOW SASHES OF RAILWAY
CARRIAGES AND OTHER LIKE SASHES
"
Our Invention has for its object an improved means of and apparatus for
securing, balancing, and fastening sliding window sashes of railway carriages and
other like sashes, such as the sashes of cabs, carriages, tramcars steamers saloon
windows and the like, and provides a means whereby the window sash will remain-
in any position in which it may be placed, and also provides for securing and
fastening the window sash when necessary in any open position and when closed.
In carrying out our Invention, we use a toothed rack on each side of the window
sash and we use a balance weight provided with racks similar to the racks on the
window sash. The racks on the window sash and the racks of the balance, weight
are so connected by toothed pinions that the balance weight holds the sash in
whatever position it may be placed.
An example of this arrangement consists of a window sash with a rack on each
side, and a horizontal balance weight from the ends of which spring two vertical
racks, which racks correspond with the racks on the window sash. The racks of
the balance weight and the racks of the window sash are connected and geared
together by duplex pinions fixed in the window frame and gearing into each other
so that as the window sash is raised, the balance weight is lowered and as the
window sash is lowered so the balance weight is raised.
As a means of securing and fastening, a pin, key, or like device may be inserted.
between the teeth of the pinions, or the teeth of the racks, which device will fasten,
or hold the window sash in any open, or in a closed position.
The beforegoing being the nature and object of our Invention, we will now
proceed to describe more in detail how the same may be put into practical
operation, and for that purpose we have hereunto annexed a sheet of Drawings
illustrative of our Invention The Drawings are marked with letters and figures of
reference corresponding with those in the following explanation, like letters and
figures being used to denote the same, or corresponding parts throughout the
various views.
DESCRIPTION OF THE DRAWINGS,
Figure 1 is an elevation partly in section of a railway carriage door with the
window sash fitted and balanced according to our Invention.
V V
'מ

page_text: in the following manner: the pinions E F are geared together, as shown at
Figure 3 and the pinions E gear into the racks B and the pinions F gear into the
racks D, thus the balance weight C balances the window sash A in any position in
which the window sash may be placed, and as the window sash A is raised the
balance weight C is lowered, and as the window sash A. is lowered so the
balance weight C is raised. To keep the racks D in position and in gear with the
pinions F we provide the guard and guide piece H which is formed on the plate J
by which the pinions EF are attached to the door frame (see Figures 4 and 5). In
lieu of the guide piece H guide rollers H as shown in Figure 1 may be used to
keep the racks D in position.
As a means of securing and fastening the window sash A, a pin, key, or like
device may be inserted through a hole in the door frame, so as to come between
the teeth of the pinions E F, or the teeth of the racks, which device will fasten, or
hold the window sash in any open, or in a closed position.
Having now described our Invention and shown the application thereof to the
window of a railway carriage door, we would have it understood, that it is not
limited in its application to the particular example shown in the Drawings, but it
is alike applicable to all window sashes of a like nature. What we claim as the
Invention secured to us by the hereinbefore in part recited Letters Patent is
First In sliding window sashes of the railway carriage type, the mode sub-
stantially herein described of hanging and operating such window sashes, which
mode consists of balancing the window sash by a weight applied to the window
sash by means of racks and pinions, substantially as herein described and shown in
the Drawings hereto annexed.
Second The arrangement of the balance weight C in connection with the racks D
pinions E F and racks B applied to the window sash A as herein described and
shown in the Drawings hereto annexed.
In Witness whereof, I, the said Joseph Benjamin Adams on behalf of myself
and the said John Telford, have hereunto set my hand and seal this Twenty ninth
day of September in the year of our Lord, one thousand eight hundred and eighty
three.
JOSEPH BENJAMIN ADAMS (L.S.)