Year: 1897

page_text: I, JOHANNES CATHARINUS BULL, of 29, Bexley Road, Erith, in the County of
Kent, Engineer, do hereby declare the nature of this invention to be as follows:
:-
This invention relates to alloys of copper and lead which if made without any
additions are so liable to segregation as to be practically useless except they con-
tain small quantities of lead in proportion to the copper or small quantities of
copper in proportion to the lead.
According to my invention I first prepare an alloy of copper and nickel and
then add the lead, by this means I produce alloys with little or no liability to
segregation, provided care is exercised in the melting and over heating avoided.
These alloys form a novel series of white metals of great utility with melting
points varying from about 700° F. to about 2000° F.
To harden the alloys produced and containing large precentages of lead it is
useful to add a small proportion of phosphorus, say 1% to 1%. The phosphorus
is added in the form of Phosphor Copper.
These alloys are more particularly useful for bearing alloys where ordinary
white metals fail on account of their usually low melting points.
The most useful proportions of Nickel are 5% to 15% of the whole and of
Lead 30% to 70% of the whole, but I do not limit myself to the percentages
herein named either of Nickel, Lead or Phosphorus.
101
1000
I, JOHANNES CATHARINUS BULL, of 29, Bexley Road, Erith, in the County of
Kent, 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 alloys of copper and lead which if made without any
additions are so liable to segregation as to be practically useless except they con-
tain small quantities of lead in proportion to the copper or small quantities of
copper in proportion to the lead.
According to my invention I first prepare an alloy of copper and nickel pre-

page_text: ferably in the proportion of 30 nickel to 70 copper and then add the lead, by this
means I produce alloys with little or no liability to segregation, provided ordinary
care is exercised in the melting, and over heating avoided.
These alloys form a novel series of white metals of great utility with melting
points varying from about 700° F. to about 2000° F.
To harden the alloys produced and containing large precentages of lead it is
useful to add a small proportion of phosphorus, say 1% to 1%. The phosphorus
is added in the form of Phosphor Copper.
These alloys are more particularly useful for bearing alloys where ordinary
white metals fail on account of their usually low melting points or lack of
toughness.
The most useful proportions of Nickel are 5% to 15% of the whole and of
Lead 30% to 70% of the whole, but I do not limit myself to the percentages
herein named either of Nickel, Lead or Phosphorus.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed, I declare that what I
claim is:-
(1) In copper and lead alloys the addition thereto of nickel, as and for the
purposes specified.
(2) In copper, lead and nickel alloys the addition thereto of phosphorus as
and for the purpose specified.
(3) An alloy of nickel, lead and copper containing from about 5% to 15% of
nickel, and from about 30% to 70% of lead.
(4) An alloy of nickel, lead and copper and phosphor containing from about
5% to 15% of nickel, from about 30% to 70% of lead and from about
% to 1% of phosphorus.
(5) Alloys of nickel, lead and copper with or without a small proportion of
phosphorus forming a series of white metals having melting points varying from
about 700° F. to 2000° F.
1
8th day of March
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent
70, Chancery Lane, London, W.C., Agent for the Applicant.