IMPROVED ELECTRICAL CONNECTOR
Year: 1884

page_text: JOSEPH SAMUEL BEEMAN 44 St. Oswalds Road West Brompton Civil Engineer
& Electrician. do hereby declare the nature of my invention for IMPROVED
ELECTRICAL CONNECTOR, to be as follows:-
-
My invention has reference to an Improved Electrical Connector or method of
connecting two metallic portions of a circuit by means of one portion being shaped
as or fitted with a male truncated cone & the other portion being shaped as or fitted
with a female truncated cone, the tighter the male cone is pushed into the female
cone the better being the contact.
.
Should I seldom require to shift them, or should they be in a situation liable to
chemical action, after being fitted I sometimes level the tops with a rasp & then
join them with solder.
Should I require to separate them often I sometimes extend the male truncated
cone-keeping it of the same diameter-through & beyond the female truncated
cone, when I can either cut a hole in this extended portion & pass a key & cotter
through & thus secure the female cone in its place, or the extended portion can
have a thread cut upon it, in which case a nut would be used to keep the female
cone in its place, & thus a greater surface would be obtained in contact.
It is obvious that there are several other ways in which the male & female
truncated cones can be kept in contact without departing from the nature of my
invention.

page_text: COMPLETE SPECIFICATION.
I JOSEPH SAMUEL BEEMAN of 44 St. Oswalds Road West Brompton Civil
Engineer & Electrician, do hereby declare the nature of my invention for AN.
IMPROVED ELECTRICAL CONNECTOR and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
My invention has reference to an Improved Electrical Connector or method of
connecting two metallic portions of a circuit, by means of one portion being shaped
as or fitted with a male truncated cone & the other portion being shaped as or fitted
with a female truncated cone, the tighter the male cone is pushed into the female
cone the better being the contact.
In the accompanying drawings Fig 1 is a plan view part section and clevation of
one form of connector made according to my invention, one portion of the circuit C
being shaped as, or fitted with a male cone A whilst the other portion C' is shaped
as, or fitted with a female cone B. Should I seldom require to break this connection,
or should it be subject to chemical action, I sometimes rasp off the top of A to the
same level as B and join them together by burning or soldering them.
Fig 2 is a plan view, part section and elevation of another form of connector
made according to my invention, wherein the truncated cone A is continued through
& beyond the female truncated cone B as at A-The portion A¹ having a thread
cut upon it & being furnished with one or more nuts D which keep A. &.B in close
contact. Sometimes I place a washer E between the nut D & the surface of B thus
facilitating the movement of B around A and yet maintaining a good contact.
By leaving the space F between A & B, room is allowed for dirt to drop away &
for wear of the cone sufaces in contact.
Fig 3 is a plan view part in section, & elevation also part in section of another
form of connector made according to my invention, wherein the truncated cone A
is continued through the female truncated cone B as at G. The portion G having
a hole cut in it & being furnished with a split cotter or split pin H instead of a
screw & nut as in Fig 2-A washer E & space F in this case perform similar
functions to those mentioned in the description of Fig 2.
I do not limit myself to these precise methods of putting my invention into
practice as it is obvious that there are several other ways in which the male &
female cones can be made & kept in contact without deviating from the principles
& nature of my invention.
Having now particularly described & ascertained the nature of my said s
Invention & in what manner the same is to be performed, I declare that what
I claim is
(1) The combination & arrangement of male & female truncated cones in an
electrical connector substantially as described & shown.
(2) The improved means for maintaining electrical connection between two parts
of a circuit when either or both portions may be moveable substantially as
described with reference to Fig 2 & Fig 3.
DJ
A11002