Improvements in and in connection with Window Sashes and Frames.
Year: 1897

page_text: Date of Application, 27th Apr., 1897--Accepted, 12th June, 1897
COMPLETE SPECIFICATION.
Improvements in and in connection with Window Sashes
and Frames.
I, JAMES CRUM KAHLE of Oil City, County of Venango, Pennsylvania, U.S.A.,
Oil Producer, 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 following statement :-
This invention has for object to provide a window in which the sashes may be
easily and quickly swung inwardly for cleaning and repairs without removal of any
stops or bead strips.
In the accompanying drawing
Fig. 1 is a section of a window frame with its sashes and attachments.
Fig. 2 a section taken at right angles to that of Fig. 1.
Fig. 3 a section on line III-III of Fig. 1.
Figs. 4 and 5 sections similar to Fig. 2 with the sashes in different positions.
Fig. a detail view of the sash cord and weights, and
Figs. 7 and 8 detail views of the slide securing mechanism.
2 is the window frame having the usual pulley stiles 3 at each side, these stiles
being provided with fixed vertical stops or beads 4 forming the grooves for guiding
the sashes 5. These latter are narrower than the transverse distance between the
edges of the stops and have secured to their opposite edges slides 6 fitting between
the stops and provided with right angled flanges 7. Each of the slides is provided
with a lug 8 having a circular recess into which leads a lower vertical slot 9, the
lug being arranged to take over a stationary screw 10 secured to the side member
of the sash, the screw being provided with a thumb nut 11 having at its inner end
a reduced ring shaped portion 12 arranged to entre the circular recess in the slide
lug and secure the slide firmly to the sash.
To prevent the lug from defacing the sash as it moves over it, the same is fixed
slightly forward to the front face of the sash, so that it will not contact there with
in its movements. The sash cords 13 are secured within suitable recesses in the
outer faces of the slides and passing over the usual pulleys 14 extend longitudinally
through holes in the square weights 15 and are secured to lower smaller weights 16
of any suitable form upon which the larger square weights rest.
Each of these
upper larger weights 15 is provided in its outer face with an angular slot 17 which,
when the weight is raised by hand to a point near the pulley and then slowly
lowered, will engage with a loosely swinging loop 18 pivotted within the sash cord
chanuel, this loop extending transversely across the channel so as to be engaged by
either of the weights, as desired.
At their lower ends the slides 6 are cut away in thickness and are provided with
a vertical recess 19 adapted to receive the upwardly projecting rounded lug 20 of a
short strip 21 which rests loosely within the groove and which, when the slide is
secured to the sash, fits in the recessed portion of the slide and makes it of
substantially the same thickness throughout. The lower end of each sash is
pivotted between these short strips so that when the slides are detached from the
window sash the sash may be swung inwardly for cleaning or other work
thereon.
If it is desired to prevent a wind blowing through the room during the cleaning
of the window, the short strips may be slid upwardly to their upper limit and the
sash thus completely reversed.

page_text: The short strips 21 for the outer sash are preferably somewhat longer than those
for the inner sash, so that the outer sash may be swung inwardly over the inner
one. The outer sash for this same reason is pivotted at a higher point upon its
sides.
To allow the outer sash to swing inwardly freely when the slides are loosened
therefrom, the lower ends of the slides for the outer sash are preferably cut away
or bevelled, as shewn, to allow the upper end of the sash to swing inwardly clear
of the slides.
In the operation of the invention the slides are firmly secured to the sashes and
move therewith in the ordinary movements of the window. When it is desired t▸
clean one of the sashes, the nuts 11 being loosened, the lugs upon the slides are
freed from the screws 10 thus allowing the slides to move upwardly beyond the
sash when in its lower position. If the full force of the weights acted upon these
slides to raise them, they would be moved upwardly with great force and probably
injure parts of the window. To obviate this, the double weight system above
described is employed and prior to loosening the slides, the cord being seized by
the hand, is drawn downwardly until the square weight is at its upper limit, after
which it being lowered slowly, the swinging loop will enter its angular slot and
thus support this square weight. When the slide is loosened the lower smaller
weight will therefore act alone upon the slide, this smaller weight preferably being
of such a size that it will just counter balance the slide which will therefore stop in
any position to which it is moved, and can be so moved easily and freely. After
the slides are thus moved upwardly the sash is swung inwardly, it pivotting upon
the lower short strips and being in convenient position for cleaning or other
operations. It then being swung back to place, it may be moved into its upper
position and the other sash being lowered, is operated upon in a similar manner, or
if desired, both sashes may be swung inwardly at the same time the outer sash
swinging over the inuer one as above described.
It will be apparent that the sashes may be quickly and easily swung inwardly
without the removal of any stops or strips while their ordinary operation is not
hindered. The flanges of the slides projecting inwardly over the sash give a very
neat and ornamental appearance to the sash and the whole construction is simple
and durable.
It will be understood that the separable slides may be employed upon sashes
without the system of double weights.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is
1. The combination with a window sash, of a vertical slide fitted on its side edge,
a projecting screw upon the sash provided with a thumb nut, and a lug upon the
slide arranged to take over the screw and having a recess arranged to be engaged
by the thumb nut, substantially as described and shewn.
2. The combination with a window frame and a sash movable therein, of a slide
detachably secured to the edge of the sash, a sash cord secured to said slide and
passing through a weight which slides freely thereon, an adjustable catch for said
weight and another weight secured to the outer end of said cord, substantially as
described and shewn.
3. The combination with a window sash having a slide detachably secured thereto,
of a sash cord secured to said slide, a weight having a slot arranged to be engaged by a
loop within the weight channel, a longitudinal hole in said weight through which
the sash cord passes, and a second weight secured to the end of the cord, substantially
as described and shewn.
4. The combination with a window sash, of a slide detachably secured to its side
edge, a sash cord secured to said slide, a weight having a flat side to hold it in the
same relative position in the weight channel and provided with an angular
slot adapted to be engaged by a loosely swinging loop in the channel, said

page_text: weight having a longitudinal hole through which the sash cord passes,.
and a weight secured to the end of said cord, substantially as described and
shewn.
5. The combination with a window sash, of detachable slides secured to its side
edges, these slides being made in two parts, the sash being hinged to the 1, ver
separable parts of the slides, substantially as described and shewn.
6. The combination with a window sash, of slides detachably secured to its side
edges, each slide having a lower inuer detachable strip to which the lower end of
the sash is pivotted, these strips having lugs arranged to enter recesses in the slides.
proper, substantially as described and shewn.
Dated this 27th day of April
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicant.