Improvements in the Construction and Manufacture of Springs and Ornaments.
Year: 1888

page_text: COMPLETE SPECIFICATION.
Improvements in the Construction and Manufacture of Springs and
Ornaments.
I, HEINRICH TORLEY of Dortmund, Westfalia, Germany, 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:-
My invention relates to a new article which call "Double Loop Spring" and to
the process of making the same. This new article of manufacture inay be used for
various practical purposes and for ornamenting articles.
The accompanying drawing shows the double loop spring in various stages of its
formation and also shows the finished article.
Figure 1 shows the double wire wound on a smooth bar.
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4
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5
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it taken off from the bar and appearing like a double screw or
spiral spring.
the two wires forming the double loop spring drawn assunder before
being pressed flat.
the finished double loop spring pressed flat.
the double loop spring as a spring in angle iron form.
In making my double loop springs I proceed as follows: Two wires are wound on
a smooth bar of iron, steel or the like of a thickness corresponding to the width
which the spring shall ultimately have and as shown by fig. 1 of the accompanying
drawing. The bar is by preference of circular section, but any flattened section
might be used.
After a sufficient length of wire has been wound on the bar, it is pushed off from
the same and the two wires are drawn assunder, one to the left and one to the
right, that they appear as shown by fig. 3 like two screw lines or screw springs
twisted or interlaced one in the other. This double screw spring is then passed
between two rollers and pressed flat so that it takes the form shown by figure 4.
In this its finished form the double loop spring may be used in a variety of cases
as a strong but very flexible flat spring where until now heavy springs of solid
bands of steel had to be used and often lighter springs would have answered the
purpose better.

page_text: The new double loop spring has the quality that one set of windings may be shifted
towards or into the other and by its capability of being bent in any direction it is
possible to use it in an angle iron form which as yet was impossible with any other
form of springs, the continuous row of the interlaced loops forming the sides of the
angle iron form.
The double loop spring may with advantage be used as a means for decorating a
great variety of articles.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed, I declare that what I
claim is:
1). The method of making "double loop springs" which consists in winding two
wires side by side round a smooth bar, shifting them off from the bar and drawing
the product, now appearing as a double screw or spiral spring, assunder, forming
apparently two interlaced spiral springs and passing it between two rollers or pressing
it Hat under some other convenient pressing apparatus.
.
2). The double loop spring produced "by the process described to be used as a flat
or as an angle iron spring for practical and decoratif purposes."
Dated this 24th day of October 1888.
KARL T. MAYER,
Agent for Applicant.