Improvements in Wire Springs.
Year: 1897

page_text: Date of Application, 27th Apr., 1897-Accepted, 29th May, 1897
Improvements in Wire Springs.
I, JOSEPH DEUTSCH, a citizen of the United States, residing at 1890 Hughes
Avenue in the City of Cieveland, County of Cuyahoga, and State of Ohio, Merchant
Tailor, 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:
The said invention has reference to wire springs, suitable for dress stays and other
purposes, and the invention consists in the construction, substantially as shown and
described and particularly pointed out in the claims.
In the accompanying drawings, Figs. 1 to 3 inclusive relate to what may be termed
a double compound, or quadruple form of coiled spring, made according to my
invention, there being four strands of wire combined from two coils of two intertwined
wires each. Thus, Fig. 1 shows a section of a mandrel about which are spirally
twined two wires side by side on a left hand turn or coil, making a left hand coil.
These wires when removed from the mandrel are interlocked with one another on each
convolution.
Fig. 2 shows a section of a mandrel with
left to right, making a right hand spiral coil.
interlocked.
two wires twined spirally about it from
These wires likewise are intertwined or
Fig. 3 is a mixed view, showing at its right the two right and left compound coils
seen in Figs. 1 and 2, in position to have the said coils pressed together one upon or
into the other, and at its left the said coils are shown as rolled flat, disclosing the edge
of a finished spring or product.
These springs are designed more especially fo. use as stays in ladies dresses and
corsets, but may also be used as a braid to decorate the sleeves, collars, and like of
mens uniforms, as well as for useful and decorative purposes in other places and ways,
not necessarily enumerated herein, and brass, copper or other wire may be used
according to taste or purpose.
The method of producing the springs has already been plainly indicated. To make
the double interlocked coils seen in Figs. 1 and 2, the wire strands 9 and 10 in Fig. 1,
and the like strands 11 and 12 in Fig. 2 are first bent spirally on a suitable mandrel
or tool or by any available means to the same size and side by side, so as to be
interlocked. This produces two compound interlocked coils. Then the two spirals or
coils are pressed together or into one another, so that they make a single roll of double
reverse coils. This being done the roll or compound coil so made is passed or fed
longitudinally between suitable rolls or rollers and pressed perfectly flat.
In this rolling operation the wires of the right and left hand coils are very firmly
locked together and cannot be separated except by taking hold of their ends and
pulling them apart edgewise. Nor can this be done without considerable strength,
and for all practical purposes the double coils are as firmly and securely engaged with
each other as they would be if they were knit or woven together. Then it will be
noticed that each original coil has its threads or wires interlocked so that they cannot
be separated laterally, and when all these wires are pressed flat the edges of the spring
are so firmly united and have the wires laced so closely together that though the
spring be bent edgewise it will instantly resume its straight position when released.
In this consideration of the spring the compound coils 7 and 8 are treated as units,
their constituents being intertwined and forming substantially one coil or part.

page_text: One of the advantages of interlocking the wire strands in the respective coils 7
and 8 is the stiffening effect edgewise of the spring, and which is directly due to the
said interlocking and twining of the strands and not obtainable otherwise. It also
adds materially to the reaction of the spring when bent flatwise and promotes the
effective union of the coils when rolled or otherwise pressed to a flat state.
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 :
The spring described consisting of two sets of spirally wound wires, each set having
a plurality of wires coiled together in the same direction and interlocked with ench
other, and the two sets formed into a single roll or coil, one of said sets coiled to the
right and the other coiled to the left and said roll or coil pressed flat and forming a
flat spring, substantially as described.
Dated at Cleveland Ohio this 5th day of Anril 1897