Improvements in Window Frames and Sashes.
Year: 1899

page_text: Date of Application, 2nd Jan., 1899-Accepted, 25th Feb., 1899
COMPLETE SPECIFICATION.
Improvements in Window Frames and Sashes.
I, OLIVER IMRAY, of Birkbeck Bank Chambers, Southampton Buildings, in the
County of London, Chartered Patent Agent, do hereby declare the nature of this
invention (as communicated to me from abroad by the Erie Safety Window Com-
pany, of the City of Eric, County of Erie, State of l'ennsylvania, United States of
America) and in what manner the same is to be performed, to be particularly de-
scribed and ascertained in and by the following statement:-
This invention relates to the construction of a window frame and sash in such a
manner that the sash can be removed and replaced at will, and that the upper
and lower sashes can be independently locked in any desired position.
For this purpose vertical grooves are made in the sides or jambs of the frame,
and in the edges of each sash, and in these are fitted strips of wood or metal having
notches in their front edges to engage removable bolts for securing them to the
sash, and with notches in their rear edges adapted to be engaged by locking bolts
in the window frames; the upper ends of these strips are also provided with open-
ings to which sash cords can be secured. These and other features of the invention
hereinafter described are illustrated in the accompanying drawings.
Fig. 1 is a front view of a window frame and sash embodying this invention,
parts being broken away.
Fig. 2 is a horizontal section on the line of Fig. 1, looking in the direction
of the arrow.
Fig. 3 is a vertical section of the window frame on the line y-y of Fig. 1
looking in the direction of the arrow.
Fig. 4 is an enlarged elevation of one edge of the sash.
Fig. 5 is an enlarged side view of one of the strips secured in the groove in the
sash.
Fig. 6 shews the front edge of the strip.
Fig. 7 is a perspective view of a bolt for locking the upper sash.
Fig. 8 is a like view of a bolt for locking the lower sash.
The jambs of the window frame are preferably made with projecting fillets a
as wide as the edge of the upper sash b to form ontside stops for the lower sash.
In the faces of the jambs are cut vertical grooves in the upper edges of which
sash cord pulleys d are mounted in the usual way.
In the edges of the upper and lower sashes there are vertical grooves correspond-
ing with the grooves in the window jambs.
In the grooves of the jambs are fitted strips of metal or wood. Figs. 5 and 6,
to the upper ends of which sash cords are secured. These strips e are so placed
in the grooves of the jambs that their edges project into the grooves in the sashes.
Each stripe is prevented from moving vertically by means of a short pin #
which is inserted into a hole in the inside faces of the sash and engages in the
notch of the strip e. The pins g being removable at will, the strip e can be drawn
lengthwise out of the groove of the sash, and either sash can then be removed from
Dis 77

page_text: the window frame. Or it can be replaced and secured by sliding the strips o
back into its grooves and inserting the pin g.
In the rear edge of each stripe there are notches h with which a bolt / or /
(Figs. 7 and 8) can be engaged by passing it through a hole in the jamb the sashes
being thus locked in any position. By turning the bolt half round it can be
engaged with or disengaged from any of the notches h.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is:
1. The construction of window jambs and sashes with corresponding vertical
grooves, edges, removable strips fitting in the grooves and having notches in their
edges, removable pins in the sash engaging a notch in one edge of each strip so
as to secure it in the sash, and transversely sliding bolts in the window frame en-
gaging any of the notches in the other edges of the strips, substantially as and
for the purpose set forth.
2. The combination of a window frame having projecting fillets a on the faces
of the jambs against which the upper sash slides and grooves in the jambs, and
in the sashes strips & each having a notch in its front edge adapted to be engaged by
a pin and having notches in its rear edge and locking bolts & and in the
jambs adapted to engage the notches h of the strips substantially as and for the
purpose set forth.
Dated thie 2nd dov of January 1800