Improvements in or Additions to Floor Door Springs and Checks.
Year: 1895

page_text: Date of Application, 18th Jan., 1895
Complete Specification Left. 24th Aug., 1895-Accepted, 28th Sept., 1895
PROVISIONAL SPECIFICATION.
Improvements in or Additions to Floor Door Springs and Checks.
I, GEORGE FREDERICK NEWMAN of the Firm of Newman and Sons, of
Hospital Street, in the City of Birmingham, Manufacturer, do hereby declare the
nature of this invention to be as follows:-
My invention relates to improvements in, or additions to, floor door springs and
checks, or to combined floor door springs and checks, and has for its object, the
prevention of the incursion of wet or moisture into the works or interior parts of
the said apparatus or apparatuses.
Ordinary floor springs and floor checks or combined apparatuses are unprovided
with means for preventing the ingress of wet or moisture into their interiors on the
floor into which they are let being washed, in consequence of which, the steel or
iron parts become corroded or eaten away by rust, and the pneumatic check
becomes spoiled.
In one part of my invention, the incursion of wet or moisture is prevented by
surrounding the inlet to the box, inward of the affixing screw, with a gutter or
gutters, or a channel or channels, wherein a packing of rubber, asbestos, felt or
like material is placed, which packing is preferably located between the flange of
the box part and the underside of the cover plate.
in carrying out one form of my invention, I take an ordinary box to receive the
mechanism, and provide the same with a broad surrounding flange, with the
attachment screw holes for the top plate coming near the outer edge, and with a
continuous channel or groove sunken within it, adjacent to the inner edge of the box
or inward of the screw holes. Within this channel, a packing of any suitable
material is inserted, with the underside of the top or cover plate coming upon it.
I prefer to employ a layer of asbestos or like material covering the whole of the
top of the box, less the part wherethrough the post or spindle of the spring
mechanism passes.
When the top plate is screwed down, a water-tight floor spring and check is made.
In carrying out another form of my invention, the channel may be formed upon
the underside of the flush cover plate, instead of upon the top side of the box or
casing, or channels may be formed (either coincident or otherwise) within both
parts.
As a further form of my invention, I provide the outer edge of the box with a
rabate or set-down flange, upon which a thickened or set-down edge of the cover
plate comes, either or both of the opposed faces of which flanges may have grooves
or channels wherein packing is inserted, hence a tight joint.
To prevent the incursion of water at the post or spindle part, I provide the hole
in the flush top plate surrounding the said spindle with a raised sleeve or annular
flange, which may lie within a like-shaped recess within the shoe affixed to the
door, and which may be interiorly recessed and packed with asbestos or the like,
which bears against the spindle, and makes a water-tight joint.
Dated this 17th day of January 1895.

page_text: Improvements in or Additions to. Floor Door Springs and Checks.
I, GEORGE FREDERICK NEWMAN of the Firm of Newman and Sons, of
Hospital Street, in the City of Birmingham, Manufacturer, do hereby declare the
nature of this invention and, in what manner the same is to be performed, to be
particularly described aud ascertained in and by the following statement :-
My invention relates to improvements in, or additions to, floor door springs and
floor checks, or to combined floor door springs and checks, and has for its object,
the prevention of the incursion of wet or moisture into the works or interior parts
of the said apparatus or apparatuses.
Ordinary Hoor springs and floor checks or combined apparatuses are unprovided
with means for preventing the ingress of wet or moisture into their interiors on the
floor into which they are let being washed, in consequence of which, the interior
steel or iron works become corroded or eaten away by rust, and the pneumatic
check becomes spoiled or inoperative.
In one part of my invention, the incursion of wet or moisture is prevented' by
surrounding the inlet to the box, inward of the affixing sorew, with a gutter or
gutters, or a channel or channels, wherein a packing of rubber, asbestos, felt or
like material is placed, which packing is preferably located between the flange of
the box part and the underside of the cover plate.
In carrying out one form of my invention, I take an ordinary box to receive the
mechanism, and provide the same with a broad surrounding flange, with the
attachment screw holes for the top plate coming near the outer edge, and with a
continuous channel or groove sunken within it, adjacent to the inner edge of the
box or inward of the screw holes. Within this channel, a packing of any suitable
material is inserted, with the underside of the top or cover plate coming upon it.
I prefer to employ a layer of asbestos or like material covering the whole of the
top of the box, less the part wherethrough the post or spindle of the spring
mechanism passes.
When the top plate is screwed down, a water-tight floor spring and check is
made.
Figure 1 of the accompanying drawing represents a vertical section of a water-
tight floor-spring box or casing made according to my improvements, which
consists of an insertioned packing disposed between the cover plate and the flange
of the box.
Figure 2 is a topside plan of the box with the cover plate removed, showing the
packing lying within the continuous gutter or groove sunken in the top face of the
flange.
Figure 3 represents an end part of the box, showing the channel or groove in
the flange and the corresponding part of the cover plate separated therefrom.
a is the box. or casing, having a broad flange a', whose top face a², is provided
with a continuous sinking or channel a³, disposed inwards of the screw holes a³, b',
of the box and cover plate a and b respectively and wherein a continuous water-
tight packing c, of india-rubber or the like, is located. d are small screws for
fixing the cover plate to the box flange, whilst e is an asbestos sheet placed between
the said box and cover plate.
In carrying out another form of my invention the channel may be formed upon
the underside of the flush cover plate, instead of upon the topside of the box or
casing.
Figure 4 represents in section such an arrangement.
a is the box, a' the flange,'b the cover plate, 62 the channel or groove within it,
c the watertight packing and d is a screw, taking through box-flange and cover

page_text: Or chaunels may be formed (either coincident or otherwise) within both cover
plate and box.
As a further form of my invention, I provide the outer edge of the box with a
rabate or set-down flange, upon which a thickened or set-down edge of the cover
plate comes, either or both of the opposed faces of which flanges may have grooves
or channels wherein packing is inserted, hence a tight joint.
Figure 5 represents a section of such an arrangement.
a is the box or casing, a¹ the set-down flange or rabated edge thereof, whilst b is
a cover plate having a thickened edge b', seating itself upon the said flange.
b, a, are coincident channels or gutters formed in flange and cover plate
respectively and wherein a water-tight packing c is located. d is an affixing
screw passing through coincident holes 63 in the box flange and at in the cover
plate edge.
To prevent the incursion of water at the post or spindle part, I provide the hole
in the flush top plate surrounding the said spindle with a raised sleeve or annular
flange, which may lie within a like-shaped recess within the shoe affixed to the
door, and which may be interiorly recessed and packed with asbestos or the like,
which bears against the spindle and makes a water-tight joint, such as represented
in section in Figure 6.
a is the box and 6 the cover whilst c is the packing between them. The part of
the cover plate surrounding the spindle e, has a sleeve 63, itself surrounded by a
secondary sleeve f₁, of the shoe f, whilst interlocated between grooves f3, 64, in the
respective sleeves, is a water-tight rubber packing cl.
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 :-
First. In floor door-springs and floor checks, interlocating between the flange
of the box and the corresponding part of the cover-plate, a water-tight packing,
substantially as described and set forth.
Secondly. In floor door-springs and floor checks, interlocating between the
flange of the box and the corresponding part of the cover-plate, an insertioned
water-tight packing, lying either within a continuous groove or channel in the box,
or flange of the box, or within a continuous groove or channel in the cover plate,
or within continuous and coincident grooves or channels in box and cover plate
respectively, substantially as described and set forth in Figures 1 to 5.
Thirdly. In floor door-springs and floor checks, the improvements in making
water-tight joints around the spindles or posts, substantially as herein described
and set forth in Figure 6.
Dated this 23rd day of August 1895.