An Improved Manufacture of Rivetted Galvanized Telegraph and Telephone Poles.
Year: 1887

page_text: COMPLETE SPECIFICATION.
An Improved Manufacture of Rivetted Galvanized Telegraph and
Telephone Poles.
We, WILLIAM BAYLISS, of the firm of Bayliss Jones and Bayliss, of Victoria
Works, Wolverhampton in the County of Stafford, manufacturers of metal fencing
telegraph poles and railway fastenings and EDWIN JONES, of Henwood House, Compton
near Wolverhampton, aforesaid, works manager, 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 :-
In the ordinary manufacture of rivetted galvanized telegraph and telephone poles
it is usual to rivet up the tubes and the bands and hoops which are to be placed,
respectively, around and within such tubes, by means of iron or steel rivets, previously
to galvanizing such tubes bands and hoops, and then after they have been galvanized
to fix the bands and hoops to the tubes and galvanize the whole a second time. This
method of manufacture prevents the rivet holes and the inner surfaces of the rivetted
joints from being coated with the galvanizing metal, and the second process of gal-
vanizing greatly increases the expense of manufacture without adding materially to
the thickness of the coating metal, as it is found that the second dipping tends to flux
the first coating instead of depositing a second layer on the surface thereof.
Now, the object of this invention is to adopt means by which the entire surfaces of
the metal plates or sheets employed including the rivet holes and the parts which will
form the inner surfaces of the rivetted joints will be thoroughly coated with the
galvanizing metal.
This object is effected, according to this invention, by galvanizing the strips and
other parts of plate or sheet metal for forming the tubes, and the bands and hoops
therefor, after the rivet holes have been formed in the edges thereof and, preferably,
after they have been bent into tubular form ready for rivetting, but previously to their
being rivetted up, and afterwards rivetting them up with rivets of phosphor-bronze,
copper, or other metal suitable for such purpose which does not require galvanizing
as a protection against corrosion, and finally fixing the bands and hoops in place in
the usual manner. Once galvanizing thus thoroughly coats and protects the entire
surface of the metal specially liable to corrosion.

page_text: Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
In the manufacture of rivetted galvanized telegraph and telephone poles galvanizing
the plate or sheet metal therefor after the rivet holes are punched therein and, preferably,
after bending ready for rivetting, but previously to rivetting, and finally rivetting the
joints with rivets of phosphor bronze, or copper, or other metal suitable for such
purpose which does not require galvanizing as a protection against corrosion,
substantially as described for the purpose set forth.
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301
1007
STEPHEN WATKINS,
Wolverhampton and Walsall,
Agent for the Applicants.