US2092840A - Strand straightener - Google Patents

Description

Sept. 14, 1937. -c-sJG. GREENE STRAND STRAIGHTENER Filed May s, 1935 w) l` J N l .U\\ N @N A l IH {Il} muu Mill!! lll l -nlllldllllllnlll'hl'll l l v .IEJ .w l i,

EE'NE Patented sept. 14, 1937 PATEN r soFFicE STRAND STRAIGHTENER Guy Gilbert Greene, San Francisco, Calif., 'assignor to The Jersey American Steel and Wire Company of New Jersey. a

corporation of New Application May s, 1ss, sci-m1 No. 1am

schim.- (oi. 14o-14s) 'I'his invention is a wire strand roll straightener, one of the objects being to straighten wire strands of reverse lay without incidental untwisting. Another object is to simplify the complicated procedure involved in the adjustment of the usual roll straightener. Other objects may be inferred.

An example of the roll straightener is illustrated by the accompanying drawing, Figure 1 showing the side of the machine'and Figure 2 the top.

The machine includes a base i which mounts the straightening rolls in two groups. The rolls in the first group are parallel and horizontal, while those in the second group are parallel and vertical. They all alternately oppositely engage and bend the strand to be straightened, which is marked S, and all but the la'st of each group are of diameters suiciently small to distort the strand beyondits elastic limit.

Since both groups are similar, excepting their positioning, it is only necessary to describe the construction and operation of one to effect a full disclosure of th straightener. Therefore, only the first group will be discussed, similar numbers being used to indicate the similar parts ofthe second group.

Base standards Il mount theilrstand second rolls 2 and 3 in xed positions with their peripheries spaced distances equalingy the diameter of the strands, whilebase standards I b horlzontally -position a sliding bar I. tof which a mounting Id is'iixed, the latter, in turn, mounting the last roll 4 of thev group for adjustment in a direction paralleling the traveling direction of.

the strand S. The third roll 5, which is the one between the rolls 3 and 4, is mounted by links 6 and l so that these three rolls are also peripherally spaced distances equaling the diameter of the strand S. The baric is shown as being threaded "to provide for easy adjustment, thethreaded portion being engaged by a suitable nut I ixed to one of the standards Ib.

As mentioned, all the rolls are arranged in such relationship as to eiect opposite bending of the strand. 'I'he close'spacing of all the rolls prevents straight strand-portions therebetween,

good feature in that it prethis having proved a vents or retards untwisting of reversely laid strand. The strand arcs overthe various rolls are constant excepting in the case of the last roll, the arc in that case depending on the adjustment of that roll. 'Ihis ultimate straightness of the strand depends von its iinal bending; To reduce the sensitivity of this roll to adjustment, `it is illustrated as being larger in diameter than the others.

adiustment is necessary since the It is to be noted that this adjustment does not aiect the other rolls because the links 6 and I are responsive to movement oithe roll 4 to` maintain the peripheral spacing of the others.

`Other means having a similar function might be developed, but the simplicity and ruggedness oi the links is in their favor. -Also, it Ais conceivable that more\rolls might precede the movable ones, or that a fixed round surface` having the proper radius might be substituted for the roll 2. Such alterations or substitutions are intended to be covered by the following claims.

. I claim: :1. A wire strand roll straightener including at least threel parallel straightening rolls, means for iixedly mounting the mounting the last of said rolls for adjustment respecting the traveling direction of the strand to -be straightened, and links interconnecting said three rolls so that their respective strand contacting peripheries are spaced distances equaling the 'diameter'of said strand.

2. A strand straightener including a group of j at least three strand straightening rolls, means for mounting the last two rolls of said group so that their angular association may vbe adjusted and means for mounting all 'the rolls of said group so that the strand contactiifg peripheries of succeeding rolls are spaced from the strand contacting peripheries of preceding rolls distances at least substantially equaling the diameter of the strand to be straightened, the last named means being operative throughout a range of adjustment of the angular relation of said last two rolls. 3. A strand straightener including a group of at least three strand straightening rolls, means for mounting the last two rolls of said group so that their angular association may be adjusted and means for mounting all the rolls of said group so that the strand contacting peripheries of succeeding rolls are spaced from the strand contacting peripheries of'preceding rolls distances at least substantially equaling the diameter of the strand to be straightened, the last namedmeans being operative throughout a range of adjustment of the angular relation of said last two rolls, and

rst of said rolls, means for being automatically responsive to changes in said adjustment.

4. A strand straightener including a grup o1' at t 'that the strand contacting peripheries of succeeding rolls are spaced from the strand contacting :sol

2 -accauo periphei-les4 of preceding rolls distances at least that thestrand contacting peripheries of succeedsubstantially equaling the diameter o! the strand ing rolls are spaced from the strand contacting to be straightened, the last named means being peripheries of preceding rolls distances at least operative throughout a range of adjustment oi substantially equaling the diameter of the strand the angular relation of said last two rolls, the to\be straightened, -the'last named means being 5 last roll of said group being of larger diameter operative throughout a range of adjustment of than the others. the angular relation o! said last two rolls, and 5. A strand straightener including a group of at being automatically responsive to changes in said least three strand straightening rolls, means for adjustment, the last roll of said group being of 10 mounting the last two rolls of said group so 'that larger diameter tlmn the others. 10 f association maybe adjusted and means for mounting ail theroils of said group so GILY GILBERT GREENE.

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