Year: 1886

page_text: Date of Application, 4th Nov., 1886.
Complete Left, 3rd Aug., 1887.
Complete Accepted, 13th Sept., 1887.
ROBERT ABRAM LEE 76 High Holborn London W.C. Electrical Engineer do hereby
declare the nature of this invention to be as follows:--
The object of this invention is an improved means of securing window sashes at
any desired position for ventilation or other purposes and to prevent the Window sash
being opened any thing over a fixed distance, from the outside. The apparatus
consist of a wedge shape box formed with a foot or flange at its base, the box being
open at the front and made with a slot at the back and top, to allow of a piece of
metal hereafter called a T piece sliding up or down in it, the width of the box is
preferably about one inch (or it may be the width of a window sash) and about one
and a half inches high the depth at the top from front to back being about half an
inch and the back gradually slopes off to nothing at the bottom of the box and so
forms internally a wedge shape (the thick end at top and thin end at the bottom) the
next part of the apparatus is a T shape stud of metal made so that the stem of it will
slide through the slot in the wedge shape box; on to the top of the TI fit two short
pieces of vulcanized India Rubber (one on either side of the stem) made in the form
of a very stout tube, the bore of which is only about one fourth of the total outside
diameter; the T shape piece with its two India rubber tubes on it, is placed in the
wedge shape box, the stem of the T being in or through the slot, and a knob is
screwed on the end of the stem after it is placed in position this completes the
apparatus which is fixed by screws through the base of it at the side of a window
sash, preferably on the top rail of the lower sash the action is as follows. The
T shape piece is allowed to rest at the top of the slot and takes its own position with
the India Rubber resting against the sash, but as soon as it is attempted to raise the
bottom sash or lower the top sash, the T piece with the India Rubber moves down
toward the thin end of the wedge shape facing, and effectually prevents the window
being opened. When it is required to keep the window from the Indian Rubber
(or to have the sash open in full) the T piece is held up at the top of the box by
simply drawing the button up through the slot and over the top of the caseing which
prevents the rubber from going down into the wedge shape box.
Dated this 4th day of November 1886.

page_text: ROBERT ABRAM LEE, 76 High Holborn, London, W.C. Electrical Engineer, 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:
The object of this invention is an improved means of securing window sashes at any
desired position for ventilation or other purposes and to prevent the window sash
being opened anything over a fixed distance from the outside. The apparatus consists
of a wedge shape box formed with a foot or flange at its base, the box being open at
the front and made with a slot at the back and top to allow of a piece of metal,
hereafter called a T piece, sliding up or down in it the width of the box is preferably
about one inch (or it may be the width of the window sash) and about one and a half
inches high, the depth at the top from front to back being about half an inch, and the
back gradually slopes off to nothing at the bottom of the box, and so forms internally
a wedge shape, (the thick end at top and the thin end at the bottom) the next
part of the apparatus is a T shape stud of metal, made so that the stem of it will slide
through the slot in the wedge shape box; on to the top of the TI fit two short pieces
of vulcanized India rubber (one on either side of the stem) made in the form of a
very stout tube, the bore of which is only about one fourth of the total outsido
diameter, the T shape piece with its two India rubber tubes on it is placed in the
wedge shape box, the stem of the T being in or through the slot and a knob is
screwed on the end of the stem after it is placed in position, this completes the
apparatus which is fixed by screws through the base of it, at the side of a window
sash, preferably on the top rail of the lower sash; the action is as follows. The
T shape piece is allowed to rest at the top of the slot and takes its own position with
the India rubber resting against the sash, but as soon as it is attempted to raise the
bottom sash or lower the top sash, the T piece with the India Rubber moves down
toward the thin end of the wedge shape casing, and effectually prevents the window
being opened. When it is required to keep the window from the India rubber
(or to have the sash open in full) the T piece is held up at the top of the box by
simply drawing the button up through the slot and over the top of the casing which
prevents the India rubber from going down into the wedge shape box.
In carrying out my invention I find it preferable to make the T piece with a
semi-circular end instead of the knob and at the other end formed with an eye
through which a piece of wire or pin is passed to carry the India rubber or rollers as
hereafter called; and I find that this arrangement gives the rollers greater freedom of
action than when the pin is solid with the T.
I also make another form of the case with a circular back suitable to receive a ball
instead of the roller before named, and in this case I fit a lifter formed of a piece of
wire bent to the shape shown at H in Figures 5 & 6 of the drawings, a slot being
made in the back of the case to allow this wire to slide in when the ball is at its

page_text: lowest position, this wire-where it terminates in a ring-is passed over a hook I
which keeps the ball up at the top of the casing, I also make an automatic arrange-
ment which will put itself into position directly an attempt is made to open the sash.
The case of this is without the slot at back and the wire lifter, and I make the case
Figs. 9 & 10 to slide horizontally on a wire, this wire is carried by a base plate M
and is surrounded by a spring O, to keep it at the position shown at K Figs. 9 & 10,
the case has a foot K₁ which keeps it upright on the base when in the position shown
at Fig. 9, & the base is shaped out as shown to allow the case K to be held off the
window sash when in the position shown by the dotted lines Fig. 10. A piece of
India rubber is fixed to the case at P which by coming in contact with the window
sash as soon as it is opened, causes the case K to assume a vertical position & slide
back to the position shown at Fig. 9.
In the drawings,
Figs. 1 & 2 are front and side elevations of the arrangement with the two rollers
and T piece. Figs. 3 & 4 are plans of same. In Figs. 1 & 3 the rollers are shown
at the top of the case and they are shown at the bottom of same in Figs. 2 & 4. A is
the case, BB the India rubber rollers, C the T piece, D is a piece of wire to hold
the rollers to the T piece and allow them to revolve as far as necessary. E is the slot
through which C slides.
Figs. 5 & 6 are front and side elevations of the arrangement with a ball instead of
the two rollers. Figs. 7 & 8 are plans of same, the case being lettered F, the ball G,
the wire H, hook I and slot J.
Fig. 9 is an elevation of the automatic arrangement and Fig. 10 a plan of same.
K is the case with its foot K', L is the ball, M the base, N the wire, O the spring,
P the piece of India rubber coming in contact with the window sash.
It is obvious
that the rollers or ball may be made of wood or metal or any flexible or solid substance
without departing from the nature of my invention, or the shape of the roller may be
varied or its surface corrugated.
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.
1st. The combination of a case made with an angular back and fitted with two or
more rollers and a T piece and pin for the purpose of holding two sliding window
sashes at any desired position.
2nd. The combination of a case made substantially as described and one or more
balls with a lifter as described for the purpose of holding window sashes at any
desired position.
3rd. The combination of a wedge shape case and a ball; fitted to a base and having
a spring with the piece of India rubber P for the purpose set forth and as described
and shown in the drawings.
4th. The general combination forming my improved window fastening substantially
as described.