Improvements in Window Sashes.
Year: 1890

page_text: Date of Application, 13th Dec., 1890
Complete Specification Left, 14th Sept., 1891-Accepted, 7th Nov., 1891
PROVISIONAL SPECIFICATION.
Improvements in Window Sashes.
I, JOHN PITT BAYLY, of 18 Fulham Place, Paddington, in the County of
London, Patent Agent, do hereby declare the nature of this invention (a communi-
cation to me from abroad by David Crosser, of Cardonia, Indiana, U.S.A.
Inventor,) to be as follows:-
This invention has reference to certain new and useful improvements in window
sashes, and the invention has for its object to provide better means for securing the
glass therein than those means at present employed.
By this invention the sash is provided with a groove or recess, which is made
entirely around the apertures therein for containing the glass. In these grooves the
glass is placed, and is held in position by four strips of wood, three of which are
dovetailed at their ends, so that when they are placed in the groove against the
edge of the glass they will be retained in position, and also retain the glass in place
when the fourth strip of wood is securely placed in position to make the complete
frame. This fourth piece or strip has its ends concaved to engage the convexed
surface of the two side pieces. By this means the glass is firmly secured in
place.
J. P. BAYLY,
Applicant.
COMPLETE SPECIFICATION.
Improvements in Window Sashes.
I, JOHN PITT BAYLY, of 18 Fulham Place, Paddington, in the County of
London, Patent Agent, do hereby declare the nature of this invention (a com-
munication to me from abroad by David Crosser, of Cardonia, Indiana, U.S.A.
Inventor,) and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :--
My invention relates to improvements in the means of fastening glass in window-
sashes, doors, picture-frames, show-cases, and frames of all kinds; and the objects
of my improvements are, first, to dispense with the use of putty, joints, nails, etc.,
and in securing the glass in a frame and at the same time to make the glass easily
detachable when required by the use of a single locking-strip inserted in such a
manner as to render unnecessary the use of brads or nails in fastening the strips in
the frame, and, second, to provide in the base of said frame a small aperture or
sweat-hole to conduct off the moisture or water of condensation that frequently forms
on the inner surface of a glass, especially in windows and show-cases, owing to
the difference of temperature to which the two surfaces of the glass may be
exposed.
accomplish these objects by the device illustrated in the accompanying drawings,
which illustrate my invention as applied to a window, and in which-
Figure is a side elevation, partly in section, of a window-sash, showing my
improvements from the inside.
Fig. 2 is a cross-section of the same on the line x x of Fig. 1, showing the adjust-
ments of the strips in the groove.
Fig. 3 is a cross-section on the line y y of Fig. 1, illustrating the position and
form of the sweat-hole;
Figs. 4 and 5, details of the fastening-strips.
A is a sash-frame containing two panes bb of glass. The frame is rabbeted about

page_text: the four interior sides to form grooves c, designed as a bed for the glass and the
fastening-strip. These grooves are of sufficient depth and width to insure a good
bearing for the glass about its exterior edge and a good bed or seat for the strips d.
The fastening-strips dare shown separately in Figs. 4 and 5, in position in Fig. 1,
and in cross-section in Fig. 2. The top fastening-strips d' are made with a convex
outer surface and at each end are undercut to form a tongue d', which passes into
an under-cut, formed in the ends of the side strips d. A lap-joint is thus formed
and the cut-out portion in the strip d' is curved so as to form a close joint with the
convex surface of the side strip.
d2 is the key or locking-strip that fits in the bottom of the sash, as shown in
Fig. 5, having a concave cut out of its ends adapted to fit and engage with the
rounded or convex, outer surfaces d d and crowd them securely into the grooves c,
forming the bed.
In Fig. 1 the right-hand side of the sash is shown broken away to show the entire
fastening in place. The other side of the same figure shows the complete sash with
pane secured therein by the fastenings as it appears from the inside.
Fig. 2 illustrates in cross-section the sash, pane, and fastenings all in position.
The fastening-strips constituting the lock may be made of any desired material
and of any exterior shape.
In Fig. 3 is shown in cross-section on the line y y of Fig. 1 the base, fastener, and
base of the sash, showing the shape and position of the sweat-hole h. 1 have designed
this latter feature in combination with my fastener to furnish a convenient escape
for the water of condensation that frequently forms on the inner surface of the pane
and that works its way down through the joint between the pane and the fastener,
and but for this means of escape would tend to swell and rot the parts. By such
an outlet the water, instead of collecting in the groove c, can escape to the outer
surface of the sash and thus obviate such difficulty.
In operation, when it is desired to set a pane, the giass is laid squarely in place
on the rear face of groove c. The top piece is first inserted and pushed hard into
its seat in the groove c. The side pieces d d follow, and finally the key or locking-
piece is pushed into place and automatically secures and maintains the side
pieces d d in place. To remove a glass the operation is simply reversed, the key or
locking-piece being first removed by a peu-knife or other suitable means, and then
the rest may be easily removed.
I am aware that wooden strips in various forms have been used as window-pane
fasteners. I do not therefore claim such, broadly.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what
I claim is :
1. A glass-fastener comprising a frame provided with the groove c, in combination
with the corresponding side strips dd, undercut at their upper ends, the top strip d',
having its ends undercut to fit the mortised ends of the strips d d, and the key or
locking-strip d, having its ends cut concave to engage with the convex faces of the
strips dd, substantially as described.
2. In a glass-fastener, the frame provided with the groove c, in combination with
the corresponding side strips d d, undercut at their upper ends, the top strip d,
having its ends undercut to fit the undercut ends of the strips dd, the key or
locking-strip d³, of similar form, having its ends cut concave to engage with the
convex faces of the strips dd, and the sweat-hole h, formed in the base of the frame
to conduct off any water that may percolate down between the glass and the fastener,
substantially as and for the purpose set forth.
Dated this 13th day of September 1891
J. P. BAYLY,
Applicant.