Improvements in Fasteners for Securing Window Sashes, Doors, and the like, in any desired Position.
Year: 1894

page_text: Date of Application, 31st Dec:, 1894
Complete Specification Left. 24th Sept., 1895-Accepted, 16th Nov., 1895
PROVISIONAL SPECIFICATION.
Improvements in Fasteners for Securing Window Sashes, Doors,
and the like, in any desired Position.
I, EDWARD FRANCIS HUTCHINS, of 9 Dumont Road, Stoke Newington, in the
County of London, England, Architect do hereby declare the nature of this
invention to be as follows:-
My invention is designed to fasten and firmly lock window sashes, casement
sashes, doors, fanlights and the like in either a closed or partly opened position of
say three inches (3") or thereabouts for the purpose of ventilation, at the same
time prevent any person from opening the sashes or the door, wider, in order to
effect an entrance into the building or a room, as the case may be, from the
outside.
And although I purpose, principally, describing the invention as applied to the
window sashes and doors of buildings, yet I do not limit myself to its application
as it may be used, with equal result for say railway and other carriage windows.
In applying my invention to sliding window sashes I secure to the lower sash
frame a suitable internal threaded socket-piece, to receive a set or thumb screw,
the end of which is tapered to engage a small toothed wheel, also connected with.
the lower sash by a bracket. The teeth of said wheel gears with a rack or
perforated plate, attached to the corresponding style of the upper sash, so that the
sashes may be quickly and easily adjusted to any position along the rack and.
there held by the binding screw, which has the effect of not only preventing the
rotation of the wheel,, but forces the sashes apart so as to bind or jamb them
firmly in the window frame. For hinged doors and casement sashes I form a
semicircular plate or rack and secure it to the floor say about six inches from the
hinged eud, and in lieu of the thumb screw I can use a spring bolt to engage the
toothed wheel.
Where the invention is employed for railway and other carriage windows I may
dispense with the thumb screw and substitute a small spring pawl having a suitable
connection by which it can be actuated.
Dated this 31st day of December 1894.
W. D. ROWLINGSON,
172 Queen Victoria Street, London, E.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Fasteners for Securing Window Sashes, Door
and the like, in any desired Position.
I, EDWARD FRANCIS HUTCHINS, of No. 9 Dumont Road, Stoke Newington,
in the County of London, England, Architect, 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 is designed to fasten, and firmly lock window sashes, doors,
fanlights, and the like, in either a closed or partly opened position, of say four (4)
inches or thereabouts for the purpose of ventilation, and at the same time to
prevent any person from opening the sashes, or the door wider in order to effect
an entrance from the outside into the building or room, as the case may be.

page_text: And although I purpose principally to describe this invention as applied to the
window sashes and doors of buildings, yet I do not limit myself to its application
for these purposes, as it may be used with equal results for, say, railway and other
carriage windows.
But in order that the invention may be clearly understood I will refer to the
accompanying sheets of drawings in which Figure 1 represents a side view and
Figure 2 an end view of my fastener in position upon the upper and lower sashes
fa window frame, and Figures 3, 4, and 5 illustrate, respectively, an end view,
side view, and plan of the fastener as applied to a hinged door or casement sash.
The fastener consists in forming upon a base plate (A) two lugs (B) and (B)
and also a third lug (C), or I may make the lugs (B) and (B) to have distinct
base plate from that which supports the lug (C). I then drill a hole in lugs (B)
and (B) for the reception of an axle or spindle on which I mount a cog, or spur,
wheel (D) and then form a tapped hole in lag (C) and insert therein a thumb-
screw (E) by turning which forwards I can bring it into contact with the
wheel (D), and thus at pleasure prevent its rotation. On the end of this thumb-
screw I fix, by any simple mechanical means, a clamping piece (F), which, on the
forward motion of the thumb-screw can be forced against the wheel (D). This
clamping piece I use to prevent the action of the thumb-screw from burring up
the teeth of the wheel (D), and I so connect it with the thumb-screw as to cause
it to move either forwards or backwards with the same freely.
In applying this invention to window sashes, I secure the plate (A), with its
attachments, to the upper surface of the meeting bar of the lower sash of any
ordinary window frame, and place it so that the teeth of the wheel (D) are in gear
with the rack (G) which 1 fix in a vertical position on the side frame of the upper
sash. I make this rack, when applied to windows easily got at from the outside,
only long enough to prevent the sashes being opened wide enough for a person to
gain admittance, but in protected windows I may continue the rack for the whole
height of the upper sash, so as to gain abundant ventilation in bed-rooms.
To allow for a further forward movement of the wheel (D) in order to press the
sashes against their casings, and thus prevent them from being moved both
together, and also to keep them from shaking in windy weather, I enlarge the
holes in the lugs (B) and (B) into slots.
Where this invention is applied to doors I fix the sole plate, or plates, and its,
or their attachments to the inner vertical face of the door making such modifi-
cations in their forms as may be desirable, and as shown in Figures 3, 4, and 5, and
I fasten the rack (G) in this case to the floor inside the room into which the door
leads, and I construct the rack in a segmental form on plan, the radius of which
segment, coincides with the radius of that segment of a circle which the wheel (D)
will describe when the door, or casement sash, is moved on its hinges, so that this
wheel will remain in gear with the rack throughout the entire length of the latter, and
thus at any point of this movement, the door can be made a fixture by the action
of the above described thumbscrew and clamping piece. So that it is obvious
that, whether as applied to doors or windows, my invention provides means, by
which either a sash or door, can be made a fixture, at any point at which the above
described cog wheel and rack remain in gear together.
Having now particularly described and ascertained the nature of my inven
tiou, and in what manner the same is to be performed, declare that what I
claim is :-
In window and door fasteners, the cog wheel (D) and rack (G) in combination
with the thumbscrew (E) or its equivalent, having a clamping piece (F) attached
to its end, all, substantially, as herein set forth and as illustrated.
ted this ŏach L
EDWARD FRANCIS HUTCHINS.