Caps or Terminals for House Chimneys.
Year: 1892

page_text: Date of Application, 5th Mar., 1892
Complete Specification Left, 5th Dec., 1892-Accepted, 7th Jan., 1893
PROVISIONAL SPECIFICATION.
Caps or Terminals for House Chimneys.
We, THOMAS JOSEPH WALFORD, of Atlas Works Charles Henry Street in the
City of Birmingham, Manufacturer, and JOSIAH HODGKINS, of 40 St. Martins
Street, Broad Street, Birmingham aforesaid, Engineer, do hereby declare the
nature of this invention to be as follows:-
This invention pertains to caps or terminals for the chimneys of dwelling houses,
and has for its object, the substitution of a combined cap and awning, in lieu of
chimney pots and other like structures now commonly employed.
By my invention, the brickwork at the summit of the said chimneys is protected,
down draughts prevented, soot deposits greatly lessened, smoky fire places
remedied, up draughts improved, and an ornamental effect given to the terminals
of chimneys.
In carrying out our invention, we provide the summit of a chimney with a down-
wardly sloping slab like cap, with boundary edging embracing flanges, and
extension cavings, which protect the brickwork of a chimney from rain or water
drippings, as the boundary edging of the same overhangs the said chimney to a
considerable distance clar of the sides whilst the flanges which are upon the under-
sides of the sloping portions of the cap, near the outside boundary edgings, fit the
top of the chimney, and forms a weathering enclosure.
The middle or crown of the said slab or cap, is open, to about the size of the
inside or bore of chimney and is vertically covered by an elevated awning or hood.
covering with open sides, and with the edges of the said awning or covering over-
hanging the crown aperture of the cap, so that the rain drippings fall upon the
upper part of the peak of the said cap, which may be of any desired pitch, for the
running off of the wet.
The awning or supplementary cover, is supported upon uprights directed between
a slab, and underside of same, and with the same elevated, to allow the free clearance
of the smoke from the chimney through the open sides.
The hood or covering is sloped upon four or other number of sides, with the
vertex coming within the middle in the form of a ridge, or as the apex of
a cone.
The pillars or uprights of the hood or awning, may be made by screwed-ended
depending bolts or stems, cast or affixed within bosses on the underside of the said
hood, and with the stems of the same, passing through the middles of distance
sleeves or hollow pillars, which rest upon the inside boundary edgings of the cap,
which has holes made through it, wherethrough the screwed ends of the bolts, pass,
and are there affixed, by screw nuts on the underside of the said boundary edging,
worming npon them.
By these means, the height of the hood or cover may be adjusted, by having
greater or less distance pieces, whilst the said cover may be ornamented by a
crest.
Dated this 4th day of March 1892.
THOMAS JOSEPH WALFORD,
JOSIAH HODGKINS,
By Henry Skerrett,
Agent for Applicants.

page_text: COMPLETE SPECIFICATION.
Caps or Terminals for House Chimneys.
We THOMAS JOSEPH WALFORD, of Atlas Works, Charles Henry Street, in the
City of Birmingham, Manufacturer, and JOSIAH HODGKINS, of 40 St. Martins
Street, Broad Street, Birmingham aforesaid, 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 pertains to caps or terminals for the chimneys of dwelling houses,
and has for its object, the substitution of a combined cap and awning, in lieu of
chimney pots or other like structures now commonly employed.
By my invention, the brickwork at the summit of the chimneys is protected,
down-draughts prevented, soot deposits greatly lessened, smoky fire places
remedied, up-draughts improved, and an ornamental effect given to the terminals
of chimneys.
In carrying out our invention we provide the summit of a chimney with a down-
wardly sloping slab-like cap, with boundary edging embracing flanges, and
extension cavings, which protect the brick-work of a chimney from rain or water
drippings, as the boundary edging of the same overhangs the said chimney to a
considerable distance clear of the sides, whilst the flanges, which are upon the
undersides of the sloping portions of the cap, near the outside boundary edgings, fit
the top of the chimney and form a weathering enclosure.
The middle or crown of the said slab or cap, is open, to about the size of the
inside or bore of the chimney, and is vertically covered by an elevated awning or
hood covering, with open sides, and with the edges of the said awning or covering
overhanging the crown aperture of the cap, so that the rain drippings fall upon the
upper part of the peak of the said cap, which may be of any desired pitch, for the
running off of the wet.
The awning or supplementary cover, is supported upon uprights directed between,
a slab, and underside of same, and with the same elevated, to allow the free clearance
of the smoke from the chimney through the open sides.
The hood or covering is sloped upon four or other number of sides, with the
vertex coming within the middle in the form of a ridge, or as the apex of
a cone.
The pillars or uprights of the hood or awning, may be made by screwed ended
depending bolts or stems, cast or affixed within bosses, on the underside of the said
hood, and with the stems of the same, passing through the middles of distance
sleeves or hollow pillars, which rest upon the inside boundary edgings of the cap,
which has holes made through it, wherethrough the screwed ends of the bolts pass,
and are there affixed, by screw nuts on the underside of the said boundary edging,
worming upon them.
By these means, the height of the hood or cover may be adjusted, by having
greater or less distance pieces, whilst the said cover may be ornamented by a
crest.
Figure 1 of the accompanying drawing, represents a perspective view of a
combined cap and awning, or a house chimney cap, constructed arranged and
combined according to our invention, and fitted to the summit of a chimney.
Figure 2 represents a transverse section of the same upon a reduced scale,
showing the boundary edge embracing flanges, clipping the sides of the summit of a
chimney, and also how the eaving extensions of the slope overhang the said
embracing flanges, and further, how the cowl or awning, also overhangs the
pierced middle part, or the outlet of the cap at the summit of the sloping top of
the cap.
a is a sloping slab, directed downwards from all sides, and terminated by eaving a³,

page_text: and chimney top embracing flanges a³, comprehending the boundary edges of the
top 6, of the chimney b.
The middle of the crown or slope a, has an opening or openings a¹, wherethrough
the products of combustion from the chimney upwardly pass, and impinge upon
the inside crown c³, of the cowl or awning c, supported by uprights e, and having a
clearance c', between the said crown a, and the caving edges c', of the said awning.
After the impingement of the products of combustion, the same are deflected down-
wards, and through the all round clearances.
The cap is applicable to chimneys provided with one, two, three or more flues or
smoke passages.
The cap is preferably made in one casting, although the same may be made up of
two or more parts.
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 A house chimney terminal, consisting of a cap, with a sloping crown, and
embracing edges, with or without eaving extensions, as set forth.
Secondly: A combined cap and awning or cowl, as described and set forth.
Thirdly-A combined chimney terminal and cowl, having parts constructed,
arranged and fitted substantially, as described and set forth.
Dated this 2nd day of December 1809
THOMAS JOSEPH WALFORD,
JOSIAH HODGKINS,
By Henry Skerrett,
6, Livery Street, Birmingham, Agent for Applicants.