US873429A - Method of making coil-springs. - Google Patents

Method of making coil-springs. Download PDF

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Publication number
US873429A
US873429A US37200507A US1907372005A US873429A US 873429 A US873429 A US 873429A US 37200507 A US37200507 A US 37200507A US 1907372005 A US1907372005 A US 1907372005A US 873429 A US873429 A US 873429A
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United States
Prior art keywords
coil
springs
pitch
wire
making coil
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Expired - Lifetime
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US37200507A
Inventor
Noah S Harter
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American Steel and Wire Company of New Jersey
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American Steel and Wire Company of New Jersey
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Application filed by American Steel and Wire Company of New Jersey filed Critical American Steel and Wire Company of New Jersey
Priority to US37200507A priority Critical patent/US873429A/en
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Publication of US873429A publication Critical patent/US873429A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/74—Making machine elements forked members or members with two or more limbs, e.g. U-bolts, anchors
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D7/00—Modifying the physical properties of iron or steel by deformation
    • C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Wire Processing (AREA)

Description

N0.s73,429. l PATBNTED DEc.1o,-19o7. N, s. HARTER.
METHOD 0F MAKINGCOIL SPRINGS. APPLmATlolsr FILED MAY a. 1901.
INVENTGR WITN ESSES UNITED sTATEs PATENT oEEIeE.
Y NOAH S. HARTER, OF WAUKEGAN, ILLINOIS, ASSIGNOR TO' AMERICAN STEEL & WIRE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF NEW JERSEY.
METHOD OF MAKING (JOIIL-SIEIR'IINGrS.
Specification of Letters Patent.
Patented Dee. 10, 1907.
Application filed May 6. 1907. Serial No. 372.005-
To all whom it may concern:
Be it known that I, NOAH S. HARTER, of
l Waukegan, Lake county, Illinois, have invented a new and useful Method of Makingv Coil-Springs, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, forming part of this specification, in which the figure is a perspective view illustrating one form of apparatus for carrying out my invention.
In the manufacture of open coil springs heretofore, it has been the practice `to press the coils together after the spring has been wound or coiled for the purpose of giving the spring a permanent set. A spring coiled in the ordinary manner will not resu me its original length after it has been compressed to its minimum length, but will be materially decreased in both pitch and length by such compression. set of the spring; and after this has once been effected, the vspring when subsequently compressed will, when released, resulne approximately the length and pitch effected by the first compression or set.
The object of the present invention is to provide a method whereby the springs are given a set at the time they are wound or coiled, or as they pass out from the coiling mechanism.
' The invention may be carried out in various ways and by thc'use of various forms of coiling mechanisms. In the accompanying drawing, I have illustrated one way of performing the same. i
In this drawing, the numerals 2 and 3 designate a pair of pcripherally grooved feed wheels, which may be driven in any desired manner. mountedin an adjustable bearing 4, having an adjustable setting screw 5 by means of which its position relative to the wheel 3 may be adjusted to regulate the feeding pressure of said wheels. From these wheels, the wire passes through any suitable guide 6', and is coiled on the arbor or mandrel 7. The wire, being tightlyv clamped between the Wheels 2 and 3, is forced through the guide 6 and around the arboror mandrel, being asadjacent to the mandrel.
This decrease constitutes the` pitch in excess of the desired .open coil springs, The upper Wheel 2 is preferablyv 8 designatesia suitable tool which is ad-V justably secured inasupport 9, and which has a beveled nose 10 adjacent to the arbor in position to guide the wire to the same. This tool governs the pitch of the spring; and by turning it in its support 9 to vary the angle of the guiding face o its nose 10, the pitch may be changed as desired. 11 designates a second tool, -also adjustably secured in the support 9, and having a nose portion 12 which is adjacent to the nose 10, and in position to bear against the outer side of the second turn or coil of Wire on the arbor and press said coil back closely against the first coil, thereby imparting a set to said second coil. In this manner, each coil is successively given a set after it is wound. By this method, I eliminate one operation and. also' the handling consequent thereto, it having been the praetice heretofore to coil the springs on one machine, and then transfer them to another i where the set is given.
, My invention is -applicable to the manu facture of all kinds ofA open-coil springs whether of the spiral type, or of the furniture spring type, and may be carried out with various forms of apparatus.
What I claim isz- 1. The method of forming helical springs,
which consists in forming Wire into a series of it is formed a itch, and then pressing each coil backwar y against the following coil to remove the excess pitch and give a permanent set thereto; substantially as described.
2. The herein described method of forming which consists in Winding or ceiling a piece of wire to form coils of a certain pitch, and pressing each coil backwardly against va later coil to remove excess itch and give a permanent set; substantial y as described.
In testimony'whereof, I have hereunto set my hand.
coils, .imparting to each coil as NOAH S. HARTER.
Witnesses:
Jar WALDECK, F. T. PULSE.
US37200507A 1907-05-06 1907-05-06 Method of making coil-springs. Expired - Lifetime US873429A (en)

Priority Applications (1)

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US37200507A US873429A (en) 1907-05-06 1907-05-06 Method of making coil-springs.

Applications Claiming Priority (1)

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US37200507A US873429A (en) 1907-05-06 1907-05-06 Method of making coil-springs.

Publications (1)

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US873429A true US873429A (en) 1907-12-10

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US37200507A Expired - Lifetime US873429A (en) 1907-05-06 1907-05-06 Method of making coil-springs.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6701765B2 (en) * 2001-02-14 2004-03-09 Kabushiki Kaisha Itaya Seisaku Sho Spring manufacturing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6701765B2 (en) * 2001-02-14 2004-03-09 Kabushiki Kaisha Itaya Seisaku Sho Spring manufacturing apparatus

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