Improvements relating to Windows.
Year: 1896

page_text: Date of Application, 11th Sept., 1896
Complete Specification Left, 10th June, 1897-Accepted, 10th July, 1897
Improvements relating to Windows.
I ALEXANDER ERKLIN, of 425 Sixth Street, New York, N.Y., U.S.A., Inventor,
do hereby declare the nature of this invention to be as follows:-
The object of this invention is to provide simple means whereby the sashes of
windows may be retained in any position, and the usual weights and cords be
dispensed with.
The invention comprises a tension device located on each side of the window in
recesses formed in the back wall of the sash grooves, of the frame.
The device comprises an apertured face-plate having a central support or
projection on its rear face. A spring is secured, at right-angles and at the centre,
of its length, to the end of the support, and has brackets at its ends, containing
rollers, the peripheral surfaces of which extend through openings in the face-
plate and bear upon the window sashes.
Dated this 10th day of September 1896
PERCY R. J. WILLIS,
Agent for Applicant.
I, ALEXANDER ERKLIN, of 425 Sixth Street, New York, N.Y., U.S.A., Inventor,
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:-
My Invention relates to an improvement in window-frames or frames for sashes,
and the object of the invention is to provide friction rollers in the sash grooves of
the frame, the said rollers being provided with a yielding or spring support,
whereby they will constantly bear upon the window sashes, while the said sashes
are within the frame, no matter whether the sashes be in a lower or in an upper
position.
The invention consists in the novel construction and combination of parts as will
be hereinafter fully set forth and pointed out in the claims.
Reference is to be had to the accompanying drawings forming a part of this
specification, in which similar characters of reference indicate corresponding parts
in all the figures.

page_text: Figure 1 is a front elevation of a window frame containing sashes, the frame
having the improvements applied thereto, and a portion of the frame being in
section to disclose one set of friction rollers. Fig. 2 is a vertical section through
the window frame, taken practically on the line of Fig. 1. Fig. 3 is a section
through a portion of the window frame, the said section being taken at right.
angles to the section shewn in Fig. 2 and, substantially on the line 3-3 of the
latter figure.
Fig. 4 is a detail view of a portion of the upper or fixed section
of the window-sash stop. Fig. 5 is a perspective view of the removable section of
the sash stop, and Fig. 6 is a vertical section through one of the tension devices
adapted for engagement with a sash.
In carrying out the invention the window frame A may be of any approved
construction, but one of its parting strips B is inade in two sections, an upper
section 10, which is preferably fixed to the frame in the usual manner, and a
removable lower section 11, the two sections' being provided with inclined
surfaces 12 at their abutting ends, the inclined surface of one section being adapted
for engagement with the inclined surface of the abutting section; and the
removable section of the parting strip B is fitted in a suitable groove 13, made in
the frame, as shewn best on Fig. 2.
The division in the parting strip B is so made that when the upper and lower
sashes C and D are in their closed position the connection between the two sections
of the parting strip will be at or near a point above the upper edges of the meeting
rails of the said sashes. One of the inner-sash stops E is preferably made in two
sections, an upper section 14 and a lower section 15. The upper section 14 may
be secured to the frame in the usual manner, and where the two sections of the
outer sash stop connect their opposing faces 16 are correspondingly bevelled,
and also the connection between the two sections-of-the-sash-stop-is-made-prefer-
ably at or near a point horizontally opposite to the connection between the sections
of the parting strip B.
"The lower removable section 15 of the inner sash stop is provided with a groove 17
in its upper edge, as illustrated Fig. 5 the said groove being adapted to receive
a web 18, preferably of metal, which is ordinarily in the central portion of the
lower face of the upper or fixed section 14, and in addition to the locking engage-
ment thus made between the opposing ends of the two sections of the sash stop the
lower renovable section of the sash stop E is usually provided at or near its
lower end with a bolt 19, or its equivalent, adapted to enter a suitable keeper in
the sill of the window frame.
In order that these sashes may be raised and lowered with the least possible
amount of resistance, and furthermore, in order to prevent the sashes from
having a rattling movement in the window-frame, I provide for each window sash
at each of its sides, a tension device F. Each tension device comprises a face
plate 20, having openings 21 at each side of its centre, through which extend
portions of the peripheries of friction rollers 22. These friction rollers are
ordiaardy pivoted in horizontal brackets or hangers 23, and the hangers are secured
to the end portions of a spring 24, the said spring being secured at or near its
centre, preferably upon the inner end of a post 25, projected from the inner surface
of the face plate 20 about midway between the friction rollers 22. Two of these
tension devices are located at each side of the window frame, one being placed in
each of the sash grooves, and the location of the tension devices is such that when
the lower sash is in its closed position one of the rollers of each tension device
belonging to that sash will be above the upper face of the upper rail of the sash,
the lower rollers engaging with the side edges of the sash, and when the upper sash
is in its upper position one roller of its tension device will be in engagement with
the sashi and the other below it, so that no matter how the two sashes are moved in
the window frame they will be in engagement with the two friction rollers one at
each side. The tension devices are located in suitable. recesses 26, made in the sash
grooves, the said recesses being closed by the face plate 20 of the said tension
devices.

page_text: 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 frame, of tension devices adapted for
engagement with the sashes, the said devices being located in recesses produced
in the back wall of the sash grooves of the frame, each device comprising an
apertured face plate, having a central support on its rear face, a spring secured to
said support at the centre of its length, and friction rollers attached to the end
portions of the spring, a portion of their peripheral surfaces extending through
an opening in the face plate, as and for the purpose specified.
2. A tension device for windows, consisting of a face plate having an opening
near each end and provided with a post projecting from its rear face, a spring
secured at the centre of its length to the post, brackets on the ends of the springs
and rollers mounted in the brackets and projecting into the openings of the face
plate, substantially as herein shewn and described.
Dotod this 10th doir of Tuna 1907
P. R. J. WILLIS,
Agent for Applicant.