US3741192A - Abrasive cable saw cutting member - Google Patents
Abrasive cable saw cutting member Download PDFInfo
- Publication number
- US3741192A US3741192A US00219815A US3741192DA US3741192A US 3741192 A US3741192 A US 3741192A US 00219815 A US00219815 A US 00219815A US 3741192D A US3741192D A US 3741192DA US 3741192 A US3741192 A US 3741192A
- Authority
- US
- United States
- Prior art keywords
- cable
- tubular cutting
- saw assembly
- cutting members
- cutting member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
- B23D61/18—Sawing tools of special type, e.g. wire saw strands, saw blades or saw wire equipped with diamonds or other abrasive particles in selected individual positions
- B23D61/185—Saw wires; Saw cables; Twisted saw strips
Definitions
- a cable saw is usually superior in wear resistance to a chain saw, since it has only a single relatively rigid joint as compared with the numerous flexible wearing link connections in the chain saw.
- the cable usually fails long before the cutting member wears out and although the cable can be repaired, a substantial downtime loss results.
- the present invention therefor provides an improved cable saw assembly with cutting elements that are driven by the cable but not in rigid attachment to it.
- the invention further provides cutting elements whose construction allows the cable to flex normally during operation, thus minimizing cable wear and metal fatigue.
- the invention pertains to a cable saw assembly comprising an endless metallic wire cable with a plurality of metallic spherical shapes fastened thereon; and one or more rigid tubular cutting members concentric with the axis of the calbe, each member enclosing one pair of the spherical shapes fastened upon the cable; and one or more flexible sleeves concentric with the axis of the cable and the axis of the tubular cutting memers, said flexible sleeves having their ends secured over the ends of the tubular cutting members, the sleeves bridging the spaces between adjacent tubular cutting members.
- FIG. 1 is a side view of a short section of cable, showing two of the spherical bodies attached.
- FIG. 2 is a side view of a single cutting member, partly in section.
- FIG. 3 is an end view of the cutting member of FIG. 2.
- FIG. 4 is a side view ofa section of the cable saw assembly, showing two cutting members in position with a flexible sleeve bridging the space between the two members.
- FIG. 5 is an isometric view of a flexible sleeve.
- the preferred type of cable for this type of saw is one which is made from cable wire cold drawn to a tensile strength of 300,000 pounds per square inch or higher. It is important that no heat be applied to the cable during assembly since heating will decrease the cable strength and fatigue life.
- a short section of the cable 10 is shown in FIG. 1 with two spherical shapes 12 in place. These are preferably balls and they are fastened securely to the cable by well-known swaging techniques.
- a cutting member is shown in FIG. 2. This is made from a short section of metallic tubing 14, the inside of the tubing being slightly larger than the outside diameter of the spherical shapes 12.
- a tubular abrasive body 16 Surrounding this tube and concentric with it is a tubular abrasive body 16 which is firmly fastened to the external circumference of the tube 14. One or more of these abrasive bodies may be fastened to the tube 14 if desired.
- FIG. 4 A section of the cable saw is shown in FIG. 4 where two cutting members are shown in position on the cable 10. Each cutting element is positioned to enclose two of the spherical shapes 12 and each end of the tube 14 is then swaged to a portion of smaller diameter 15, curved to conform with the curvature of the enclosed spherical shape 12.
- the inside surfaces of the tube 14 may be coated before swaging with a friction resistant coating 18 of nylon, molybdenum disulfide, Teflon or, mixtures of these.
- the coating is preferably applied by first heating the tube interior and then spraying or otherwise applying the powdered friction resistant mixture to the hot metal until 'a film of suitable thickness is deposited.
- the film thickness may range from 10 to mils with 30 mils being preferred.
- the sleeve is a flexible polymeric material which may be of rubber, neoprene, nylon, polyurethane, polyethylene or mixtures thereof.
- the sleeve may be made of heat scalable material and may be cut along one side for installation over the ends of the cutting members with the out being sealed after the sleeve is in place. If the materialis sufficiently elastie, the sleeve may be stretched over the outside of the cutting member and snapped into place without cutting.
- the sleeves may be made of a heat shrinkable form of the polymeric material. In any case,
- the ends of the sleeves are secured to the cutting members by snap rings 22, the sleeves having shoulders at both ends to prevent the snap rings from sliding off the sleeve.
- the flexible sleeves therefore act, in conjunction with the tubular cutting members, to completely enclose the saw cable and protect the wearing surfaces within the tubular cutting members from exposure to abrasive particles removed from workpieces as they are being cut. After assembly, the ends of the cable are joined, by known methods, to give an endless sawing unit.
- tubular cutting members of the invention permits a continuous long radius bend of the cable as it passes around the driving wheel and guide pulleys. This results in a cable saw in which the cable floats within each tubular cutting member and is under a more constant bearing pressure due to the spherical bearing connection in each of the cutting members.
- a saw of this construction has a longer useful life since flexing stresses are distributed along an extended length of cable rather than being localized at the points where the cuttingelements are attached.
- a cable saw assembly comprising: a. an endless metallic wire cable with a plurality of metallic spherical shapes fastened thereon; and b. one or more rigid tubular cutting members concentric with the axis of the cable, each member enclosing one pair of the spherical shapes fastened upon the cable; and c. one or more flexible sleeves concentric with the axis of the cable and the axis of the tubular cutting membes, said flexible sleeves having their ends secured over the ends of the tubular cutting members, the sleeves bridging the spaces between adjacent tubular cutting members 2.
- a cable saw assembly according to claim 1 in which the spherical shapes are swaged to the cable.
- a rigid tubular cutting member according to claim 3 in which the metallic tube has one or more tubular abrasive members, concentric with the axis of the metallic tube and secured around the external circumference of the tube.
- a rigid tubular cutting member according to claim 5 in which the anti-friction composition comprises material selected from the group consisting of nylon, molybdenum disulfide, Teflon and mixtures thereof.
- a cable saw assembly according to claim 1 in which the flexible sleeves are secured to the ends of the tubular cutting members by snap rings.
Abstract
Description
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US21981572A | 1972-01-21 | 1972-01-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3741192A true US3741192A (en) | 1973-06-26 |
Family
ID=22820896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00219815A Expired - Lifetime US3741192A (en) | 1972-01-21 | 1972-01-21 | Abrasive cable saw cutting member |
Country Status (1)
Country | Link |
---|---|
US (1) | US3741192A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4546755A (en) * | 1982-02-16 | 1985-10-15 | Ove Gustavsson | Chain saw sealing device |
US4856490A (en) * | 1987-09-09 | 1989-08-15 | Osaka Diamond Industrial Co., Ltd. | Wire saw |
EP0339439A2 (en) * | 1988-04-23 | 1989-11-02 | Mvz Maschinenbau Und Verzahnungstechnik, Johannes Falkenstein | Sawing tool |
US4945889A (en) * | 1987-12-11 | 1990-08-07 | W. F. Myers Company, Inc. | Belt-configured saw for cutting slots into stones having a poly-crystalline diamond cutting surface |
US5064445A (en) * | 1988-04-02 | 1991-11-12 | Sankyo Rikagaku Co., Ltd. | Grinding tool and method of making the same |
EP0761356A1 (en) * | 1995-08-21 | 1997-03-12 | Tyrolit Schleifmittelwerke Swarovski KG | Saw wire |
US6087445A (en) * | 1998-05-13 | 2000-07-11 | Gherghel; Radu Olimpiu | Polymers containing nylon and halogenated polymer |
AT511080A4 (en) * | 2011-04-20 | 2012-09-15 | Swarovski Tyrolit Schleif | SAWING PIECE FOR USE IN A ROPE CUTTING MACHINE |
US8845639B2 (en) | 2008-07-14 | 2014-09-30 | Baxano Surgical, Inc. | Tissue modification devices |
US9314253B2 (en) | 2008-07-01 | 2016-04-19 | Amendia, Inc. | Tissue modification devices and methods |
US10377053B1 (en) * | 2010-06-29 | 2019-08-13 | Bisso Marine, LLC | Cutting apparatus and method |
-
1972
- 1972-01-21 US US00219815A patent/US3741192A/en not_active Expired - Lifetime
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4546755A (en) * | 1982-02-16 | 1985-10-15 | Ove Gustavsson | Chain saw sealing device |
US4856490A (en) * | 1987-09-09 | 1989-08-15 | Osaka Diamond Industrial Co., Ltd. | Wire saw |
US5305730A (en) * | 1987-12-11 | 1994-04-26 | W. F. Meyers Company, Inc. | Belt-configured saw for cutting slots into stones having a polycrystalline diamond cutting surface |
US4945889A (en) * | 1987-12-11 | 1990-08-07 | W. F. Myers Company, Inc. | Belt-configured saw for cutting slots into stones having a poly-crystalline diamond cutting surface |
US5064445A (en) * | 1988-04-02 | 1991-11-12 | Sankyo Rikagaku Co., Ltd. | Grinding tool and method of making the same |
EP0339439A3 (en) * | 1988-04-23 | 1990-09-05 | Mvz Maschinenbau Und Verzahnungstechnik, Johannes Falkenstein | Sawing tool |
EP0339439A2 (en) * | 1988-04-23 | 1989-11-02 | Mvz Maschinenbau Und Verzahnungstechnik, Johannes Falkenstein | Sawing tool |
EP0761356A1 (en) * | 1995-08-21 | 1997-03-12 | Tyrolit Schleifmittelwerke Swarovski KG | Saw wire |
US6087445A (en) * | 1998-05-13 | 2000-07-11 | Gherghel; Radu Olimpiu | Polymers containing nylon and halogenated polymer |
US9314253B2 (en) | 2008-07-01 | 2016-04-19 | Amendia, Inc. | Tissue modification devices and methods |
US8845639B2 (en) | 2008-07-14 | 2014-09-30 | Baxano Surgical, Inc. | Tissue modification devices |
US10377053B1 (en) * | 2010-06-29 | 2019-08-13 | Bisso Marine, LLC | Cutting apparatus and method |
AT511080A4 (en) * | 2011-04-20 | 2012-09-15 | Swarovski Tyrolit Schleif | SAWING PIECE FOR USE IN A ROPE CUTTING MACHINE |
AT511080B1 (en) * | 2011-04-20 | 2012-09-15 | Swarovski Tyrolit Schleif | SAWING PIECE FOR USE IN A ROPE CUTTING MACHINE |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: KENNECOTT CORPORATION Free format text: MERGER;ASSIGNORS:BEAR CREEK MINING COMPANY;BEAR TOOTH MINING COMPANY;CARBORUNDUM COMPANY THE;AND OTHERS;REEL/FRAME:003961/0672 Effective date: 19801230 |
|
AS | Assignment |
Owner name: KENNECOTT MINING CORPORATION Free format text: CHANGE OF NAME;ASSIGNOR:KENNECOTT CORPORATION;REEL/FRAME:004815/0036 Effective date: 19870220 Owner name: STEMCOR CORPORATION, 200 PUBLIC SQUARE, CLEVELAND, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:KENNECOTT MINING CORPORATION;REEL/FRAME:004815/0091 Effective date: 19870320 |