US935660A - Method of making turnbuckles. - Google Patents

Method of making turnbuckles. Download PDF

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Publication number
US935660A
US935660A US42?24008A US935660DA US935660A US 935660 A US935660 A US 935660A US 935660D A US935660D A US 935660DA US 935660 A US935660 A US 935660A
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United States
Prior art keywords
cup
making
turnbuckles
coupling
blank
Prior art date
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Expired - Lifetime
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US42?24008A
Inventor
Edward E Johnson
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/12—Connections or attachments, e.g. turnbuckles, adapted for straining of cables, ropes, or wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/02—Making uncoated products
    • B21C23/03—Making uncoated products by both direct and backward extrusion
    • 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
    • B21K1/44—Making machine elements bolts, studs, or the like
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49606—Turnbuckle making
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/29—Rotarily connected, differentially translatable members, e.g., turn-buckle, etc.
    • Y10T403/291—Rotarily connected, differentially translatable members, e.g., turn-buckle, etc. having tool-engaging means or operating handle

Definitions

  • '1 e object of this invention is to )rovide a simple and inex nsive method 0 maimfacturmg li ht an strong rod-con lings of the turn-bu tle type, that is a tubulitr cou ling such as shown in Fig. 1'2, consisting o a central enlarged portion, polygonal in cross section to adapt it to receive a tool, and reduced end portions internally threaded for connection to the externally threaded adjacent ends of the rod sections.
  • I take a circular flat di of sheet metal and draw or stamp it to a cup form such as shown in Fi '3 and 4; and then I draw this cup still eeper to the form shown in Figs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Adornments (AREA)

Description

UN ITED ST'A'IES PATENT OFFICE.
IDWLID I. JOHNSON, 0! 8'1. PAUL, IINNESOTA.
II'I'HOD OI ILKING TUBNIUCXLB.
"collection 0! letters Pete. I-
lutented Oct. 5, 1909.
Application fled larch 85, I900. lertat Io. 488,840.
To all whom it may concern:
Be it known that I, Enwaun I'I. Jonxsox, a citizen of the United States of America, and a resident of St. Paul, county of Rammy, State of Minnesota, have invented certain new aml useful Improvcna-nts in Methmls of Making 'Iurnbuckles, of which the following is a full and clear specification. lllft'ltillfl. being bad to the accompanying drawings, in which- Figures 1 and 2, respectively, a plan aml a transverse section of the blank from which the buckle is constructed; Figs. 3 and 4, respectively, a plan and a cross-section showing the appearance of the blank after the first operation; Figs. 5 and 6 similar views of the device after the second operation: Figs. 7 and 8 similar views of the product after the next operation: Figs. 9 and ltl similur views of the article after the next operation; Figs. ll and 12 similar views of the coin ileted article.
'1 e object of this invention is to )rovide a simple and inex nsive method 0 maimfacturmg li ht an strong rod-con lings of the turn-bu tle type, that is a tubulitr cou ling such as shown in Fig. 1'2, consisting o a central enlarged portion, polygonal in cross section to adapt it to receive a tool, and reduced end portions internally threaded for connection to the externally threaded adjacent ends of the rod sections. In carry- 1 out this method I take a circular flat di of sheet metal and draw or stamp it to a cup form such as shown in Fi '3 and 4; and then I draw this cup still eeper to the form shown in Figs. 5 and ti. 1 then, by suitable dies draw this cup down to the )eculiar shape shown in Figs. 7 and 8, that is with its main or upper part polygonal in cross section and its lower portion narrowed down to form one of the necks at the ends of the coupling. I then, by a still further draw operation, elongate this ferrule-like cup ai i g then open the lower end of the cup by cutting it oil or otherwise, as shown in Fig. 10. I then place the coupling in a suitable die and neck or narrow down by com- I pression the upper end of the tube, any suitable die arran'ement being used for this pur mse, such, or instance, as the die shown [It big. 4 of my co-pendii application 5cria No. 4:33.239. '1 he nedli portions of the coupling are then threaded internally to complete the coupling. In this manner a strong light coupling can be made at a minimum expense for large quantities. lly drawin the couplin in the manner set forth t no coupling wi I be made of a single homogeneous eompactedpiece of steel.
It will be observed that by my method I avoid weakening the tubular blank by radial expansion or stretching but on the contrary reatly strengthen the reduced end-portions by bodily compressing the metal inwardly and thus puttin" it under radial com ression. There wilfnot even be any stretc ling or bulgin of the blank at the vertical corners of t to mandrel c as the distance between these corners and the internal wall of the die is equal to the thickness of the wall of the blank.
Havin thus fully described my invention, what I c aim as new, and desire to secure by Letters Patent, is
The method herein described of making turn-buckle rod-couplings from a sheet meta cup having a closed bottom, consisting in drawing down the cup to the desired depth and simultaneously compressing and narrowing the lower end of the cup to a cylindrical form and the upper portion into a hexagonal shape in cross-section throughout its length, then opening the lower closed end of the cup, and then reducing the upper end by com nession to a narrow cylindrical shape, for t no purpose set forth.
In testimony whereof I hereunto allix my signature in the resence of two witnesses this 6th day of It arch, 1908.
EDWARD E. JOHNSON.
.Witnesses:
G. M. Aur za, E. C. (ioommu.
US42?24008A Method of making turnbuckles. Expired - Lifetime US935660A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2616307A (en) * 1950-09-22 1952-11-04 Mallory Marion Cam and method of making same
US2696397A (en) * 1950-07-20 1954-12-07 Thompson Prod Inc Turnbuckle
US3065006A (en) * 1958-11-26 1962-11-20 Grinnell Corp Turnbuckle blank
US20080072649A1 (en) * 2006-09-26 2008-03-27 Han-Ching Huang Method for Manufacturing One Piece Turnbuckle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2696397A (en) * 1950-07-20 1954-12-07 Thompson Prod Inc Turnbuckle
US2616307A (en) * 1950-09-22 1952-11-04 Mallory Marion Cam and method of making same
US3065006A (en) * 1958-11-26 1962-11-20 Grinnell Corp Turnbuckle blank
US20080072649A1 (en) * 2006-09-26 2008-03-27 Han-Ching Huang Method for Manufacturing One Piece Turnbuckle
US7665340B2 (en) * 2006-09-26 2010-02-23 Han-Ching Huang Method for manufacturing one piece turnbuckle

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