Improvements in Electrically Heated Soldering Irons.
Year: 1894

page_text: Date of Application, 8th Sept., 1894
Complete Specification Left, 7th June, 1895-Accepted, 13th July, 1895
PROVISIONAL SPECIFICATION.
Improvements in Electrically Heated Soldering Irons.
We, PAUL STOTZ of Neckarstrasse, Stuttgart, Germany, Manufacturer, and
FRIEDRICH WILHELM SCHINDLER-JENNY of the Village of Kennelbach near
Bregenz, Austria, Manufacturer, do hereby declare the nature of this invention
to be as follows:-
:-
This invention relates to a soldering iron in which a casing of suitable form con-
taining an electric heater is connected to the copper wedge shaped soldering body
in such a manner that when desired the latter may be easily disconnected and replaced
with another without it being necessary to put the electric heater on one side or to
materially interrupt its use.
For this purpose the heater is formed of a casing charged with fire clay or other
refractory insulating material through which is passed an electric conducting wire
both ends of which are carried through the bandle insulated the one end or branch
from the other and from the handle in a known manner, and then connected with
the main wires. The top of the heater casing is provided with a cover. The
bottom of the casing and the top of the soldering body are correspondingly formed
to insure a close and firm contact between the two parts when these are clamped
together by clamps the lower ends of which may be hook shaped to take into
recesses in the soldering body and the upper ends also hooked to take on to a screw
collar operated by a screw the end of which bears against the casing cover, or each
of the clamps may be tightened and loosened by nuts on their screwed ends taking
against the casing cover. With the view of obtaining a large contact surface
between the bottom of the heater casing and the top of the soldering body, said
contact surface may be wedge shaped or conoidal or of such a form as will give
a large bearing surface.
Dated this 8th day of Sentember 1894.
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicants.
Improvements in Electrically Heated Soldering Irons.
We, PAUL STOTZ, of 142, Neckarstrasse, Stuttgart, Germany, Manufacturer,
and FRIEDRICH WILHELM SCHINDLER-JENNY, of Kennelbach near Bregenz,
Austria, Manufacturer, 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 :-
Our invention relates to improvements in electrically heated soldering irons, and
has for its object to provide an improved construction wherein the soldering
member or head is detachable from the heating body casing and has a broad
surface contact therewith, and the two parts can also be adjusted one upon
other so as to insure close contact at all points; it has further for its object to
877
the

page_text: provide improved means for adjusting and securing the soldering member or head
to the heating body casing, and also for securing a cover to the heating body
casing.
To the accomplishment of the foregoing and such other ohjects as may herein-
after appear the invention consists in the features of construction hereinafter
described and then sought to be specifically defined by the claims, reference being
had to the accompanying drawing forming a part hereof, and in which
Fig. 1 is a vertical section and Fig. 2 a side view of the soldering iron of this
invention.
Figs. 3 and 4 are respectively a vertical section and an edge view of a somewhat
modified form of the same.
Figs. 5 and 6 shew different forms of casing and soldering member.
a is a casing of copper or other suitable metal provided with a handle k and
closed at the top by a cover d. In Figs. 1, 2, 3, 4, the bottom of the casing a is
formed by a hollow wedge shaped rib which is fitted into a corresponding recess in
the top of the soldering meinber 6 or the top of the soldering member may be
made wedge shaped and the bottom of the casing provided with a recess as is
obvious.
The casing a is filled with a heating body of clay, chamotte, or other suitable
refractory insulating material through which is led an electric conductor h. Both
ends of the wire h pass through the handle k where they are insulated from one
another and from the handle in any well known manner and are connected to the
main wires by suitable means. The soldering member b consists of a wedge shaped
copper body b provided at the top with a recess corresponding to the form of the
casing bottom thus allowing of a tight and close contact between the two parts
when connected together. "These parts may be detachably connected together in
any convenient manner, the invention not being limited to the means shewn in the
drawings which however are considered the most preferable on account of their
simplicity and efficiency.
In Figs. 1 and 2 clamps care attached to the casing a by hooking over
projections on a screw nut e, this latter being supported by a screw f bearing
upon the cover 'd of the casing, the lower inwardly turned ends of the clamps
entering recesses made in and near the top of the soldering member b. By
working the screw f in the one or the other direction the parts a, b, may be
clamped together or loosened or separated. The clamps are guided between
lugs 1.
In Figs. 3 and 4 clamps c¹ are held in place by nuts 1 working on the upper
ends of the clamps, the nuts. taking against the flange of the cover d¹. In this
case the clamps are shewn guided by plates 7 screwed to the casing a.
The different forms of the casing bottom and soldering member where these two
parts are united together are designed so as to give a large surface of contact in
order to accelerate the passage of heat from a to b but other forms may obviously
be used.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. An electrically heated soldering iron consisting of the casing containing an
insulating heating body and conducting-wire, a soldering member or head separable
from the casing, said casing and head fitting one partially within the other and
slidable one upon the other, and means for drawing one part upon the other to
effect close contact between the meeting surfaces of the two parts, substantially as
and for the purposes described.
2. An electrically heated soldering iron, consisting of the casing containing an
insulating heating body and conducting wire, a soldering member or head separable
from the casing, said casing and head fitting one partially within the other, a cover
to the casing, clamps connected at their lower ends to said soldering member or

page_text: head, and adjusting means forming a connection between said clamps and cover
and adapted to draw the cover and head to their respective places and secure them
therein, substantially as and for the purposes described.
Dated this 7th day of June 1895.
THOMAS R. SHILLITO,
89 Chancery Lane, London, W.C., Agent for the Applicants.