Improvements in Window Sashes.
Year: 1890

page_text: Date of Application, 16th Sept., 1890
Complete Specification Left. 26th Nov., 1890-Accepted, 27th Dec., 1890
PROVISIONAL SPECIFICATION.
Improvements in Window Sashes.
I, THOMAS CARN, of 6, Haydon Place, Guildford, in the County of Surrey, Joiner,
do hereby declare the nature of this invention to be as follows:-
My invention has for its object to enable window sashes to be readily reversed,
i.e. the outside brought inwards, for the purposes of cleaning or re-glazing so that these
operations may be performed from the inside of the apartment.
For this purpose the sash is mounted on side pivots supported in sliding bars
working in the grooves of the window frame, so that the sash can be swung on its
pivots free of the beads of the frame; normally the laths and the sash are locked
together so that all move up and down as one, this interlocking of the parts being
effected by tongues driven into matching grooves in the abutting faces of the sash and
bars which tongues serve also to stop draught through the joints.
For convenience,
length.
the tongues would be hinged at one or more points in their
Dated this 16th day of September 1890.
COMPLETE SPECIFICATION.
Improvements in Window Sashes.
I, THOMAS CARN, of 6, Haydon Place, Guildford, in the County of Surrey, Joiner.
lo 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 has for its object to enable window sashes to be readily reversed,
.e. the outside brought inwards, for the purposes of cleaning or re-glazing so that these
operations may be performed from the inside of the apartment. Another incidental
advantage of my invention is that it affords an easy means of renewing the sash
lines when required.
Reference is to be had to the accompanying drawings, forming part of this
Specification, wherein
Figure 1 is a central vertical section through part of the side member or stile of
one sash.
Figure 2 is a face view of one of the sliding bars hereafter referred to.
Figure 3 is a cross-section through the middle of one of the side members or stiles
of both sashes supposed to be brought to the same level, and
Figure 4 shews one of the keys or tongues hereafter referred to.
The same letters of reference denote like parts in all the figures.
For the purpose of my invention, the sash A is mounted on side pivots B supported
in sliding bars C working in the grooves D of the window frame so that the sash can
be swung on its pivots B free of the beads E of the frame; normally the sliding
bars C and the sash A are locked together so as to move up and down as one,
this interlocking of the parts being effected by keys or tongues F driven into matching
grooves G in the abutting faces of the sash A and bars C, which tongues or keys
serve also to stop draught through the joints. For convenience, the tongues would
be rule-jointed at one or more points in their length, as at fin Figure 4, so that in
removing or inserting them they may be flexed as necessary, to avoid the window
Price b21

page_text: frame, the tongues extending the whole height of the sash which is greater than half
the height of the window frame. The sash stiles and slide bars have metal plates ac
screwed to their adjacent faces, the pivot B being screwed into a socket in the plate a,
as shewn. The plate c is formed with a channel c¹ at back adapted to receive the end
of the sash line which is passed down to the orifice at the lower end and secured by
the set screws c² which may easily be got at when the sash is swung to a horizontal
position. To enable the one sash to swing past the slide bars of the other sash, it is
preferred to introduce washers at the pivots B between the sash and its slide bars..
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is;-
1. The combination, with a window sash pivoted on side pivots in bars sliding in
the window-frame grooves, and to which the sash lines are connected, as described, of
tongues or keys fitting in matching grooves in the abutting faces of the sash and
slide bars and serving to lock them together and stop draught, as described.
2. Jointing the tongues or keys used for the purpose of this invention, as specified
in claiming clause 1, at one or more points, as described.
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NUVCIHUGI
3000
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THOS. CARN.
By A. M. & Wm. Clark,
53, Chancery Lane, London, Patent Agents.
ANOT 100IWANT TO (1 ma
QUITA NA