IMPROVEMENTS IN DEVICES FOR FASTENING OR SECURING WINDOW SASHES
Year: 1872

page_text: LETTERS PATENT to Charles Duggin, of the City, County, and State
of New York, in the United States of America, but at present of
35, Southampton Buildings, in the County of Middlesex, for the
Invention of "IMPROVEMENTS IN DEVICES FOR FASTENING OR SECURING
WINDOW SASHES."-A communication from abroad by James M.
Crossman, of South Orange, in the State of New Jersey, and George
Sam Rice, of Tarrytown, in the State of New York, both in the
United States of America.
Sealed the 8th April 1873, and dated the 9th November 1872.
PROVISIONAL SPECIFICATION left by the said Charles Duggin at the
Office of the Commissioners of Patents, with his Petition, on the
9th November 1872.
I, CHARLES DUGGIN, of the City, County, and State of New York, in
the United States of America, but at present of 35, Southampton
Buildings, in the County of Middlesex, do hereby declare the nature of

page_text: the said Invention for "IMPROVEMENTS IN DEVICES FOR FASTENING OR SECURING
WINDOW SASHES," a communication to me from abroad by James M.
Crossman, of South Orange, in the State of New Jersey, and George
Sam Rice, of Tarrytown, in the State of New York, both in the United
States of America, to be as follows:-
The Invention consists of a device to hold securely both sashes of a
window at the same time, and so adjusted as to be automatic in securing
the sashes when they are both closed. To the upper sash is secured the
fastening device which consists of a bar or bolt hung or secured in a
suitable metallic or other case or frame made to fit a recess cut in the
sash rail or having a flange thereon by which it is screwed to the sash
rail. The bar or bolt is mounted upon a pin or axis upon which it
swings in or out of the recess in the case or frame so as to unlock or
lock the sashes, the bolt or bar being acted upon by a spring when the
sashes are closed to throw it into the proper position for fastening or
securing them. To the upper bar or rail of the lower sash is secured a
plate upon which the bolt or bar rests when both sashes are closed.
Through standards connected to this plate is passed a push pin which
bears upon the bolt or bar, and is used to push the bolt or bar back into
the recess in the case or frame so that the upper sash may be lowered,
or the lower sash may be raised unobstructed by the bolt or bar.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Charles Duggin in the Great Seal Patent Office
on the 8th May 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES 25
DUGGIN, of the City, County, and State of New York, in the United
States of America, but at present of 35, Southampton Buildings, in the
County of Middlesex, send greeting.
'WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Ninth day of November, in the year of our 30
Lord One thousand eight hundred and seventy-two, in the thirty-sixth
year of Her reign, did, for Herself, Her heirs and successors, give and
grant unto me, the said Charles Duggin, Her special licence that I,
'

page_text: the said Charles Duggin, my executors, administrators, and assigns, or
such others as I, the said Charles Duggin, my executors, adminis-
trators, 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 "IMPROVEMENTS IN DEVICES
FOR FASTENING OR SECURING WINDOW SASHES," a communication to me from
abroad by James M. Crossman, of South Orange, in the State of New
Jersey, and George Sam Rice, of Tarrytown, in the State of New York,
both in the United States of America, upon the condition (amongst
others) that I, the said Charles Duggin, 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 the nature of the
said Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Scal Patent Office within six
calendar months next and immediately after the date of the said Letters
•

page_text: the recess in the case or frame so that the upper sash may be lowered or
the lower sash may be raised unobstructed by the bolt or bar.
And in order that the said Invention may be clearly understood, and
readily carried into effect, I will proceed aided by the accompanying
Drawing more fully to describe the same.
DESCRIPTION OF THE DRAWING.
The Drawing represents a side elevation of a section of the device.
A represents a vertical section of the lower part of an upper window
sash; B, a vertical section of the upper part of a lower window sash.
A and B are so placed as to represent both sashes closed; C represents a
space or recess cut in the side rail of the upper sash A, within which the
fastening device is secured and operated. D represents a bar or bolt
hung or secured in a suitable metallic or other case or frame made to fit
the sash rail A in the recess C, within which the case or frame is
properly secured by screws or otherwise. a is a pin upon which the
bolt D is suspended, and upon which it swings in or out of the recess so
as to unlock or to lock the sashes; c is a metallic plate corrugated,
plain, or bevelled, and secured to the upper bar or rail of the lower
sash B, upon which the bolt D rests when both sashes are closed as they
appear in the Drawing, e represents a push pin passing through the
standards i, i, which are secured to an extension of the plate c. The
push pin e bears upon the bolt D, and is used to push the bolt D back
into the recess C so that the upper sash may be lowered or the lower
sash may be raised unobstructed by the bolt D. o represents a spring
by which when the sashes are closed the bolt D is thrown into the
proper position for fastening or securing them. When either sash is
opened the bolt D will be held by the pressure of the side rail of the
lower sash within the recess C in the position shown by the dotted lines.
It is obvious that in place of the pin a a hinge joint may be used for
suspending the bolt D, and that various forms of springs may be used
for throwing the bolt D into the proper position for fastening or securing
the sashes, whilst instead of the frame of the bolt D being fitted within
a recess in the sash it may be provided with a flange to screw on the
side thereof.
Having thus described the nature of the said Invention, and the mode
of carrying the same into effect, I would have it understood that what I

page_text: claim is, the combination of the swinging bolt D, the spring o, the
plate c with upright guides, and the push pin e, arranged substantially
as described, and for the purpose set forth.
In witness whereof, I, the said Charles Duggin, have hereunto set
my hand and seal, this Twenty-fourth day of January, in the year
of our Lord One thousand eight hundred and seventy-three.
CHARLES DUGGIN. (L.S.)