Year: 1894

page_text: All amendments are shown in erased and italic type
I, HENRY REASON 111 Glo'ster Rd. Brighton. Sussex. Engineer. do hereby declare
the nature of this invention to be as follows :-
My invention relates to the construction of boxes or covers for electricity supply
mains and has for its object the prevention of accidental short circuiting across such
mains at the parts where they are usually bared for the insertion of safety fuses and
which parts are usually protected by boxes through which the electricity mains pass. I
construct my improved boxes or covers with lids attached by hinges or otherwise and
of such shape, and arranged in such a manner that when one lid is opened it auto-
matically prevents the other lid or lids from being opened and thus access can only
be obtained to one main at a time. I carry out my invention in different ways by
one of which I construct two boxes, preferably oblong, with holes at both ends for
the mains to pass through and each box is provided with a hinged lid having sides of
suitable depth and I fix said boxes on a base with their backs or hinged parts opposite
each other and at such suitable distance apart as to allow one lid only to be thrown
back on its hinges at a time, the space between the two boxes corresponding to the
depth of the sides of one lid only, and thus when one lid is open the other cannot be
as the space will only admit one side at a time.
I also apply my invention to those boxes known as double pole electrical fuse boxes,
or single boxes constructed to take two electricity mains and two fuses and for this
form of box I provide two lids each covering half of same and hinge them together
fixing the hinges down the centre of the box such hinges being parallel with the
mains and thus each lid covers one main only; I then affix boss or stops to the hinge
portion of one lid which causes it to butt up against the other lid on being raised
or opened beyond a right or other desired angle and thus the lids can only be fully
opened one at a time and consequently only one main can be operated upon at
a time.

page_text: Improvements in Fuse Boxes for Electricity Supply Mains.
I, HENRY REASON. of 111 Gloucester Road, Brighton, Sussex 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 the construction of boxes or covers for electricity supply
mains, and has for its object the prevention of accidental short circuiting across such
mains at the parts where they are usually bared for the insertion of safety fuses and
which parts are usually protected by boxes through which the electricity mains pass.
I construct my improved boxes or covers with lids attached by hinges or otherwise
their equivalents and of such shape, and arranged in such a manner that the lid which
on being opened exposes the main, prevents any other lid or lids being simultaneously
opened, thus access can only be obtained to one main at a time. I-earry In carrying
out my invention in-different-ways-by-one-of-which I construct two boxes, preferably
oblong, with holes at both ends for the mains to pass through and each box is pro-
vided with a hinged or equivalently attached lid having sides of suitable depth, and
I fix said boxes on a base with their backs or hinged parts opposite each other and at
such suitable distance apart as to allow one lid only to be thrown back on its hinges
at a time, the space between the two boxes corresponding to the depth of the sides of
one lid only, and thus when one lid is opened, the other cannot be as the space will
only admit one side at a time.
I also apply my invention to those boxes known as double pole electrical fuse boxes,
or single boxes constructed to take two electricity mains and two fuses, and for this
form of box I provide two lids each covering half of saine and hinge them together
fixing the hinges down the centre of the box, such hinges being parallel with the
mains and thus each lid covers one main only; I then affix bosses or stops to the
hinge portion of one lid which causes it to butt up against the other lid on being
raised or opened beyond a right or other desired angle, and thus the lids can only be
fully opened one at a time and consequently only one main can be operated upon at
a time.
I-also-construet-boxes-with-lids-which-slide-preferably-in-grooves-in-sides-of
boxes-aeross-tops of same-and-seid-lids-are-provided with stops-which-prevent them
being slid-more-than-a required-distoner: 1-also-construct-my-fuse--boxes-with
lids-or-covers-which-may-be-kept-closed-by-means-of-a-sliding-bolt-or bar-which
may-work-in-rabbets-or-other-suitable-bearings-and-said-bar-may be provided-with
stops-fixed-in-suitable-positions-to-limit-its-movements in order that it may only
release-one-lid-at-a-time;-and-thus-only-one-main-can-be-exposed-at-a-time.
In order that my invention may be more clearly understood I will now refer to the
accompanying drawings.
Fig. 1 represents a pair of fuse boxes suitably fixed in position shown in plan and
Fig. 1 represents the same in end elevation.
D is
A & A¹ are the lids on covers, B B are the bases hinged to said lids at CC.
the base upon which the boxes are fixed and D¹ is a stud preferably of insulating
material on which the lids.rest when open. E E are the cables of electrical conductors
connected by a fuse F across the terminals H H fixed on the insulator G.
It will be seen that the lid A cannot be fully opened until the lid A¹ is closed and
therefore access can only be obtained to one main at a time.
Fig. 2 represents three fuse boxes in plan suitably fixed in position so that where
three conductors are used simultaneously and three fuses are consequently inserted,
it is desired to protect all three; in this drawing the left hand box is shown partly
open.
Fig. 2 represents the same in end elevation with the middle cover raised, and
Fig. 2 represents the same in side elevation,

page_text: A, A, A are the lids or covers hinged to the bases BBB at CCC. DDD are the
cables or conductors connected by the fuses E E E across the terminals FFF fixed
on the insulating beds G G G. It will be seen that the three lids A, A1, A¹¹ can only
be fully opened one at a time.
Fig. 3 shows a plan of a double pole fuse box having two lids, one being shown
raised, and Fig. 3ª shows the same in end elevation.
A & A¹ are the lids hinged to the base B by the hinges C. D D are the cables or
mains joined by the fuse E across the terminals F F, mounted upon the insulating
blocks G G.
It will be seen that either of the lids A & A¹ can only be fully opened respectively
when the other is closed.
I would have it understood that I make no claim to constructions and arrange-
ments of electrical fuse or cut-out boxes which require intermediate mechanism for
the purpose of automatically preventing access being obtained to more than one
main at a time but only to the construction and arrangement above set forth whereby
that result is obtained without any intermediate mechanism.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is-
1st. The construction and arrangement of electrical-fuse-or-cut-out-boxes-or-eovers
which-antomatically-prevent-areess--being--obtained-to-more-than one-mein-at--1
time:
2nd: The construction-and-arrangement-sf-electrical-fuse-or-ent-out-boxes-sub-
stantially-as-described-and-shown in Figs. 1-&-1-2-2--2--3--3-
The construction and arrangement of electrical fuse or cut-out bores substantially
as set forth.