Improvements in Soilpipe and Rainpipe Tops or Caps.
Year: 1899

page_text: Date of Application, 1st Aug., 1899
Complete Specification Left 24th Apr. 1900-Accepted 23rd June 1900
Improvements in Soilpipe and Rainpipe Tops or Caps.
We. CHRISTOPHER WILLIS and ALFRED BATES, Metal Spinners, both of 1, Bond
Street, Halifax, in the County of Yorkshire, do hereby declare the nature of
this invention to be as follows:-
This invention relates to soilpipe and rainpipe tops or caps and consists of
the improvements hereinafter described in its construction, which improvements
are applicable to such articles made of any suitable metal.
By our invention the manufacture of such articles, is very much simplified and
economized, and an article is produced which is very much superior for its pur-
pose than those at present in use.
In the ordinary method of constructing these articles, galvanized iron wire is
used, it being woven into a round cap with four wire prongs continued down
from the last ring, or edge of cap, which same prongs are sprung into the pipe
which it is to cover, thus making it secure to the pipe.
The purpose of these said tops or caps is to prevent birds getting down or
building their nests inside, thus ensuring a free outlet or inlet as the case may
be.
In this our invention we make the cap out of sheet metal, stamping a blank
circle of such metal into a shell, leaving a flange which we roll over into a bead.
To attach the cap to the pipe, we cut by the aid of press tools three slots (at equal
distances apart) from the centre of cap to the bead; the pieces slotted out are
left intact at the bead and are bent inward, downward and then outwards, 50
that they project below the bead of the cap, and may be sprung inside the pipe
similar to the prongs on the present wire ones.
We will now particularly describe this our invention and the manner in which
it is to be performed, by the aid of the accompanying illustrated sheets of draw-
ings upon which are figures and letters of reference:-
Fig. 1 is a stamped metal shell with a beaded edge.
Fig. 2 is a view of soil or rain pipe top made after the manner of this our
invention.
Fig. 3 is an enlarged sectional view showing how the clips are bent over from
the top or cap.
We stamp from a blank circle of sheet metal a half round shell or the like,
with a groove or the like at point to act as a stay or strengthener, and roll a
bead at point for a similar purpose.
We then take this same shell and with suitable tools (press), cut a perforation
or slot from point a to point b this same operation we perform at two three or
more equal distances apart, leaving the pieces cut out intact at b. We then
bend these intact pieces inward, downward, & then outward below and so pro-
duce clips similar to d. The perforations act as outlets.
D11 21st of Tul. 1800
ALFRED BATES.
CHRISTOPHER WILLIS.

page_text: COMPLETE SPECIFICATION.
Improvements in Soilpipe and Rainpipe Tops or Caps.
We, CHRISTOPHER WILLIS and ALFRED BATES, Metal Spinners and Stampers,
of 1, Bond Street, Halifax, of the County of Yorkshire, 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 soilpipe, and rainpipe tops, or caps and consists of
the improvements herein described in its construction which improvements are
applicable to such articles made of any suitable metal..
In the present method of constructing these articles, galvanized iron or copper
wire is used, it being woven into a round cap with four wire prongs continued
down from the bottom ring or edge of cap which same prongs are sprung into the
soil or rain-pipe, thus making cap secure to the .pipe.
The purpose of these said tops or caps is to secure a free inlet, or outlet of the
pipes.
In this our invention we make the cap out of sheet metal by spinning or
stamping a blank disc of sheet metal into a shell having a flanged edge, which
we roll over into a bead.
We next cut by the use of press tools a number of slots at equal distances apart
from the centre of cap to the bead leaving the pieces slotted out, intact at the
bead. These intact pieces we then bend inward, downward and then outward
(during which process they are so shaped as to give them latent spring), so that
they project below the bead and may be sprung into the rain or soil pipe similar
to the wire prongs on the present wires ones.
We will now particularly describe this our invention and the manner in which
it is to be performed, by the aid of the illustrated sheets of drawings left with
the Provisional Specification, upon which are figures and letters of reference.
Fig. I is a stamped metal shell with a beaded edge.
Fig. II is a view of soilpipe and rainpipe top or cap, made after the manner of
this our invention, showing the prongs or clips which secures it to the pipe,
and the slots or perforations c.
Fig. III is an enlarged sectional view showing how the prongs or clips d are
bent.
We stamp or spin from a disc of sheet metal, an half round shell, or the like,
and roll a bead as at b, we then with suitable tools cut a slot or perforation from
point a towards leaving the piece cut, intact at 6; this we reapeat at two or
more equal distances apart. We next bend these intact pieces inward, downward
& outward as shown in Fig. III. d. The slots e act as inlets or outlets. We
may introduce more perforations between the slots if more vent should be
necessary.
Having now particularly described and ascertained the nature of our inven-
tion and in what manner the same is to be performed, we now declare that what
we claim is;-
1. The making of rainpipe, soilpipe tops, or caps, in sheet metal.
2. The cutting & shaping of pieces slotted out of shell that they may act as
prongs or clips to secure the cap to pipe.
3. The utilizing of pieces, for prongs, cut out for necessary perforation by
leaving them intact at one point adapting the one to suit the other
Dated this 20th day of April 1900.