Window-guards, and the like.
Year: 1887

page_text: Date of Application, 13th Oct., 1887
Specification Accepted, 13th Dec., 1887
Window-guards, and the like.
I, WALTER WHITFIELD BOSTWICK, of 73 Queen Victoria Street, in the City of
London, 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:-
My invention relates to folding or collapsable gates, shutters or window-guards and
the like, and is designed to improve the construction and cheapen the manufacture of
the same.
My said invention comprises various improvements hereinafter set forth and
illustrated in the accompanying drawings, in which
Figure 1 is a front elevation of part of a gate constructed according to my present
invention.
Figure 2 is a horizontal section on the line x, x, Figure 1.
Figure 3 is a plan, showing a slight modification of my invention.
Figure 4 is a front elevation of part of a gate, and,
Figure 5 is a horizontal section on the line ¹, x¹, Figure 4, showing another
modification of my invention.
Figure 6 is a front elevation of a shutter or window-guard made in accordance with
my said invention, showing the same extended, parts of the said shutter or window-
guard being removed.
Figure 7 is a similar view, showing the said shutter or window-guard collapsed.
Figure 8 is a horizontal section on the line 2, 2, Figure 6, and
Figure 9 is a horizontal section on the line ³, ³, Figure 7.
Figure 10 is a plan illustrating another modification of my said invention.
Figure 11 is a front elevation.
Figure 12 an end elevation, and
Figure 13 a plan, illustrating a combined window-guard and sun-blind constructed
according to my said invention.
Like letters indicate corresponding parts throughout the drawings.
a, a are the uprights or vertical bars, b, b are connecting links or levers, which are
pivoted to the said uprights at the points and are coupled together, by means of
pins or bolts (as at 62, Figures 1 and 2) in the form of what are known as lazy tongs,

page_text: so that they will keep the said uprights parallel to each other when the gate, shutter
or the like is extended or collapsed, substantially as described in the specification of
former Letters Patent dated 17th February A.D. 1885, No. 2189.
According to one part of my said invention, I cheapen the manufacture of the gates,
shutters or the like, by making the uprights a of bars which are oblong in transverse
section as shewn in Figures 1, 2, and 3, and forming in the said bars slots a¹ into
which the pins 62 are fitted and in which the said pins will slide when the gate is
extended or collapsed. Each upright a may consist of two bars as shown in Figures 1
and 2, or of a single bar as shewn in Figure 3; in the former case the bars are united
by means of rivets or otherwise; in the latter case, the links or levers b are coupled
by means of bolts 63 (Figure 3) which are passed through the slots in the uprights a
and are provided with nuts 6 for securing the said links to the said uprights.
€ (Figures 1 and 4) is a locking bar such as is described in the said former
specification.
I also cheapen the manufacture of the gates, shutters or the like by making the
uprights a of round bars as shown in Figures 4 and 5, and providing bolts 65, 66
the heads of which are bored to fit the uprights a. The links or levers bare
fitted upon these bolts and secured thereon by means of nuts 67. The bolts 65 are
firmly fixed upon the uprights a; the bolts 6 are fitted to slide up and down
thereon to permit the extension and contraction of the gate, shutter or the like.
It is evident that I can, if desired, make the uprights shown in Figures 4 and 5 of
any other suitable form in transverse section. It is also evident that the bolts which
serve as the pivots for the connecting links b may be formed on the uprights or
fixed thereon in any other convenient manner.
1 sometimes connect the links or levers between the two uprights at each end
of a gate, shutter or the like, by means of pins or bolts * as shown in Figure 1,
to stiffen the said gate, shutter or the like.
In Figures 6, 7 and 8, I have shown a shutter or window-guard constructed to fold
or collapse substantially as described in the said former specification, and provided on
both sides with plates or strips d of metal or other suitable material. Each of these
plates or strips is rivetted or otherwise secured at one edge thereof to the corresponding
upright a, so that, when the shutter or window-guard is extended, the said plates or
strips will slightly overlap one another as shown in Figures 6 and 8, and, when the
said shutter or window-guard is contracted or collapsed, the said plates or strips will
slide one behind another until they occupy the positions indicated in Figures 7 and 9.
The free edges of the plates or strips d are curved as shown so that they will readily
move or slide one upon the other. By these means I can render the said gates,
shutters, window-guards or the like fire-proof and burglar-proof. Moreover, when
extended, they will present an appearance somewhat similar to that of the revolving
shutters now in general use. It is obvious that, in the shutter or window-guard shown
in Figures 6 to 9, the uprights and links may, if desired, be constructed and arranged
as herein described with reference to Figures 1 and 2, or to Figure 3, or to Figures 4
and 5, and that the said plates or strips may be provided upon one or both sides of the
gate, shutter, window-guard or the like.
In some instances, I attach strips or plates d in the manner above described to one
side only of a shutter or window-guard and bend the said plates or strips outward as
shown in Figure 10, thus providing a combined shutter or window-guard and
sun-blind.
According to another modification of my invention illustrated in Figures 11, 12
and 13, I make a combined shutter or window-guard and sun-blind as follows, that is
to say I attach a number of plates e to each upright either on one or both sides
thereof, so that, when the shutter or window-guard is extended, the plates on one
upright will slightly overlap those on another upright as shown, and, when the shutter
or window-guard is collapsed, the plates on one upright will slide behind those on
another upright. The said plates are inclined as shown in Figure 12, so that whilst
shutting out the direct rays of the sun, they will admit the daylight into the shop
or other building to which the combined window-guard and sun-blind is applied.

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 wish it understood that I claim :-
First. The employment, in a folding or collapsable gate, shutter, window-guard or
the like, of uprights consisting of flat bars formed with slots in which the pins or bolts
coupling the ends of the connecting links or levers are fitted to slide, substantially as,
and for the purpose, set forth.
Second. A folding or collapsable gate, shutter, window-guard or the like, wherein
the bolts which serve as the pivots for the connecting links or levers are formed on,
or firmly attached to the uprights, and the bolts which couple the ends of the said
links or levers are fitted to slide upon the said uprights, substantially as, and for the
purpose, set forth.
Third. The combination, with a folding or collapsable gate, shutter, window-guard
or the like such as is hereinbefore referred to, of plates or strips of metal or other
material secured to the uprights on one or both sides of the gate, shutter or the like
and arranged to slide one behind another, substantially as, and for the purposes, set
forth.
Fourth. The improved combined window-guard and sun-blind substantially as
described with reference to Figure 10 or to Figures 11, 12 and 13 of the drawings.
Dated this loth uay of October 10.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London,
Agents for the Applicant.