Year: 1897

page_text: I, JOSEPH UNETT, Foreman Roll-turner, of 1, Albert Road, Consett, Co. Durham,
do hereby declare the nature of this invention to be as follows:-
-
This invention has for its object to provide a fastening device for window sashes
and the like that will effectually draw the meeting-rails together, and so prevent
rattling, and also to make it quite impossible to open the sash from the outside by
the insertion of a knife blade or other instrument.
In carrying this invention into practical effect, the fittings upon the two meet-
ing rails are very similar to those at present in use but that on the lower sash
is formed with a suitably shaped edge on the overhanging portion, acting as a cam
surface as will be hereinafter described. The operating lever, is formed in two
portions hinged together. The outer of these two portions is formed with a cam
shaped projection adjacent to the hinge. The inner portion is provided with a
stop arranged so that when the outer portion comes against this stop the two
portions are in line and move as one.
The method of operation is as follows.―
In order to fasten the sashes, the compound operating lever is turned from its
inactive position on the meeting-rail of the upper sash, so that it passes under
the fitting upon the meeting-rail of the lower sash similarly to those at present
in use, the cam surface on the fitting assisting to keep the two portions in line.
In this position it will be apparent that the sashes are not close together. The
outer portion of the compound lever is then turned upon the hinge through an
angle of about 90 degrees relatively to the inner portion, and the cam shaped pro-
jection upon the said outer portion acts upon the cam surface of the fitting on the
lower sash so that the meeting rails of the sashes are drawn closer together.
To unfasten, the outer portion of the lever is turned back until the two portions
are in line, when, owing to the stop they move as one and the whole is moved
back on to the meeting rail of the upper sash thus allowing the window to be
opened.
It will thus be seen that as the meeting rails are tightly drawn together all
rattling in windy weather is prevented and any attempt to move the lever by
inserting a knife blade or other instrument between the meeting rails could not
answer owing to the engagement of the cam shaped projection with the cam sur-
face as above described.

page_text: Improvements in Fastening Devices for Window Sashes and the like.
I, JOSEPH UNETT, Foreman Roll-turner, of 1, Albert Road, Consett, Co. Durham,
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 follow-
ing statement: —
This invention has for its object to provide a fastening device for window
sashes and the like that will effectually draw the meeting-rails together, and so
prevent rattling, and also to make it quite impossible to open the sash from the
outside by the insertion of a knife blade or other instrument.
In carrying this invention into practical effect, the fittings upon the two meet-
ing rails are very similar to those at present in use but that on the lower sash is
formed with a suitably shaped edge to the overhanging portion, acting as a cam
surface as will be inhereafter described. The operating lever, is formed in two
portions hinged together. The outer of these two portions is formed with a. cam
shaped projection adjacent to the hinge. The inner portion is provided with a
stop arranged so that when the outer portion comes against this stop the two
portions are in line and move as one.
The method of preparation is as follows.-
In order to fasten the sashes, the compound operating lever is turned from its
inactive. position on the meeting rail of the upper sash, so that it passes under
the fitting upon the meeting-rail of the lower sash similarly to those at present
in use, the cam surface on the fitting assisting to keep the two portions in line.
In this position it will be apparent that the sashes are not close together. The
outer portion of the compound lever is then turned upon the hinge through an
angle of about 90 degrees relatively to the inner portion, and the cam shaped. pro-
jection upon the said outer portion acts upon the cam surface of the fitting on
the lower sash so that the meeting rails of the sashes are drawn closer together.
To unfasten, the outer portion of the lever is turned back until the two portions
are in line, when owing to the stop they move as one and the whole is moved back
on to the meeting rail of the upper sash thus allowing the window to be opened.
Referring to the accompanying drawings Fig. 1 is a plan view of a fastening
device for window sashes constructed according to this invention in a half way
position and Fig. 2 is a similar view in the fastened position.
The fitting, a upon the lower sash is formed with a curved edge 6 upon the
overhanging portion c acting as a cam surface. The operating lever is pivoted
upon the other fitting a¹ and is formed in two portious a, hinged together at e
and provided with an operating knob f: The outer portion of this lever is
formed with a cam shaped projection g adjacent to the hinge c. The inner
portion d of the lever is provided with a stop h arranged so that when the outer
portion comes against the stop h the two portions d, d are in line and move
as one.
In order to fasten the sashes, the lever d, d¹ is operated so that it passes under
the overhanging portion c of the fitting a. So far the two portions of the lever d, d¹
move practically as a single lever similarly to the fasteners at present in use,
the cam shaped projection just meeting the corner of the cam surface b; and assist-
ing to keep the two portions d, d¹ in line. In this position the sashes are secured
against movement but are not close together. In order to complete the operation
of the device, the portion d', is turned upon the hinge e through an angle of about
90 degrees relatively to the inner portion d and the cam shaped projection g acts
upon the cam surface, b.so as to draw the sashes closer together.

page_text: To unfasten, the outer portion d' of the operating lever is turned back until the
two portions d d¹ are in line, when, owing to the stop h, they move as one and can
be moved out of the way to allow of the opening of the window.
It will thus be seen that as the meeting rails are tightly drawn together all
rattling in windy weather is prevented and any attempt to move the lever by insert-
ing a knife blade or other instrument between the meeting rails could not answer,
owing to the engagement of the cam shaped projection with the cam surface as
above described.
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) An improved fastening device for window sashes and the like comprising
a compound operating lever provided with a cam shaped projection upon its outer
portion and a corresponding cam surface formed upon the fitting, the said com-
pound operating lever being first moved as one to engage the fitting and fasten
the sashes and the outer portion thereof then turned relatively to the other so
that the cam shaped projection engages with the cam surface and the two sashes
are drawn closely together substantially as described.
2. An improved fastening device for window sashes and the like substantially
as described with reference to the accompanying drawings.
Total thin 95th day of February 1898
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.