plates, or riates ΟΓ Covers for Openings for goung and Ventilating Purposes.
Year: 1885

page_text: plates, or riates ΟΓ Covers for Openings for goung and
Ventilating Purposes..
I, EDWARD GREGSON BANNER, of 11 Billiter Square in the city of London,
Engineer, do hereby declare the nature of my said invention for "IMPROVEMENTS
IN MEANS FOR FASTENING OR SECURING COAL-HOLE PLATES, OR PLATES OR COVERS
FOR OPENINGS FOR LIGHTING AND VENTILATING PURPOSES," to be as follows :—
This invention relates to certain improvements in means for fastening or securing
coal-hole plates, or plates or covers for openings for lighting and ventilating
purposes, such as for instance, vaults, cellars, archways, subways, and underground
places below sidewalks, road-ways, and other covered places whether above or
below ground.
In carrying out the invention I make, for the hole to be covered, a lining piece
with a groove running around the inner upper edge thereof, and connect with the
said grooved edge a tube or tubes or channel or channels, to lead off any water
either of condensation, from the inside, or coming in from the outside, and the
cover plate (whether fitted with glass or other lights or not) is coned upon the
underside, to lead any condensation to a drip channel, from which it may be
carried according to local requirements. The outer edge of the cover plate, may
be made to fit to the grooved inner rim of the lining piece.
The lining piece is in some cases formed converging inward from the upper
channelled rim, the plate being provided on its underside with holding pieces
jointed to the plate, said holding pieces being in this case formed with crooked
ends. The holding pieces of the plate, may have adjustable arms jointed to lugs
below the plate, said arms being slotted for a certain distance in the direction of
their length, and having bolted therein an outwardly projecting stud or bolt, the
inside of the bolt being weighted, and the said bolts or studs being adjustable in
the slots or on guides of the arms.
When using these plates or covers the crooked ends, studs or bolts are made
with, or set in the arms to such position, that the noses of the crooked ends, studs
or bolts, will come just below the surrounding lining piece of the opening, and
when the plate or cover is put on, or in position, the ends, studs, or bolts, and arms

page_text: will, by counterbalance fall outward from the centre, and cause the ends, studs or
bolts to lock or project on each side of the lining piece, and thus form secure
fastenings.
.
According to a modification of this construction the extremities of the arms may
bave studs fastened thereto or made of a piece therewith, and be counterbalanced,
and the lower ends of the arms may be jointed and adjustable in slide and guide
on the upper part of the arms.
In order to release these plates or covers, conveniently from below, at whatever
height they may be placed upon the lower ends, of such studs, bolts, or bars, a cord
may be attached and carried over a runner or pulley on the opposite arm so that
by pulling on to the cords the arms and bolts will be drawn towards each other,
and the plate will become released.
Dated this 9th day of December 1885.

page_text: EDWARD GREGSON BANNER of 11 Billiter Square 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 :-
This Invention relates to certain improvements in means for fastening or securing
coal-hole-plates or plates or covers for openings for lighting and ventilating
purposes such as for instance vaults, cellars archways, subways and underground
places below sidewalks, road ways and other covered places whether above or below
ground.
In carrying out the invention I make for the hole to be covered a lining piece
with a groove running around the inner upper edge thereof and connect with the
said grooved edge a tube or tubes or channel or channels to lead off any water
either of condensation from the inside or coming in from the outside, and the cover
plate (whether fitted with glass or other lights or not) is coned upon the underside
to lead any water of condensation to a drip channel from which it may be carried
according to local requirements The outer edge of the cover plate will be made
to fit to the grooved inner rim of the lining piece.
The lining piece is in some cases formed converging inwards from the upper
channelled rin the plate being provided on its underside with holding pieces
jointed to the plate said holding pieces being in this case formed with projections
or crooked ends. The holding pieces of the plate may have adjustable arins jointed
to lugs below the plate said arms being slotted for a certain distance in the
direction of their length and having bolted therein an outwardly-projecting stud
or bolt the inside of the bolt being weighted and the said bolts or studs being
adjustable in the slots or on guides of the arms.
When using these plates or covers the crooked ends studs or bolts are made
with or set in the arms to such position that the noses of the crooked ends studs
or bolts will come just below the surrounding lining-piece of the opening and when
the plate or cover is put on, or in position the ends studs or bolts and arms will,
by counterbalance fall outward from the centre and cause the ends studs or bolts
to lock or project on each side of the lower edge of the lining piece and thus form
secure fastenings.
In order to release these plates or covers conveniently from below at whatever
height they may be placed upon the lower ends of such studs bolts or bars a cord
may be attached and carried over a runner or pulley on the opposite arm so that
by pulling on to the cords the arms and bolts will be drawn towards each other
and the plate will become released.
In the drawings annexed hereto Fig. 1 represents in central cross section a con-
struction of cover plate according to this invention Fig. 2 is like view of modifi-
cation of construction and :
Fig. 3 a further modification.

page_text: a is the lining of the hole to be covered said lining piece being shown in Fig. 1
with the coned sides. b is the groove in the rim of said lining-piece from which
groove a channel or. tube, as at Fig. 2, is carried to lead off any liquid coming
into said groove; b¹ are depressions of the inner lip of the groove b, c, is the cover
plate coned or dished on its underside to lead water of condensation to the groove
or channel 6 by way of the depressions b¹.
The lining piece a is according to this Invention made with the sides below the
groove b sloping inward as at a¹ Fig. 1. d, are lugs formed on the underside of
the cover plate c, and to these lugs d, are jointed swinging arms e, with holding
pieces or ends f. For purpose of giving counterpoise to the arms e the ends on
the inner side are at e¹, made large and weighted so that by their own weight on
opposite side of the arms to the holding pieces or ends f, said ends f, will be caused
to fall into position under the lower edge of the lining piece and so secure the
plate in position without necessity for direct manipulation from below.
The modification shown in Fig. 2 embraces a like construction to that before
described but with means for adjustment of the holding pieces f on the swinging
arms e. The combined holding part f and weights e¹ has a hole therethrough so
as to render the same slidable and adjustable upon the arm e its position being
fixed by binding screw or stud or screw bolt as shown.
The construction shown in Fig. 3 is a further modification wherein the arms e
aro jointed in the middle to a central stud c¹ of the plate, one end of each arm
having a nose or projection to engage with the lower edge of the lining piece and
the opposite ends of the arms are counterweighted.
For purpose of locking these arms two catches or trip levers h, jointed at h¹, to
stud c¹, and counterweighted are provided substantially as shown.
In the figures of the drawings the 'cords for releasing these plates or covers are
shown passed through holes or eyes of the weighted arms which will by hauling
on the ends cause the arms to be drawn towards each other to release them but
instead of a continuous cord, cords may be employed with their ends attached to
opposite arms and running over a stud pulley or eye on the opposite arm as is
indicated for illustration in Fig. 1ª.
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
Firstly. In means for fastening cover-plates the combination of the arms e, with
projections f, and weights e¹, operating with the lower edges of the lining piece to
automatically fasten the plate when placed in position as herein set forth and
shown by the drawings.
Secondly. In means for fastening cover plates
the coned lining piece in combi-
nation with swinging arms e and projections f. of the cover plate as herein
described.
Thirdly. The lining piece with grooves b and converging sides a¹ as and for the
purpose herein set forth.
WALTER A. BARLOW,
Agent for E. G. Banner.