US2920678A - Tape reconditioning apparatus - Google Patents

Tape reconditioning apparatus Download PDF

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US2920678A
US2920678A US578337A US57833756A US2920678A US 2920678 A US2920678 A US 2920678A US 578337 A US578337 A US 578337A US 57833756 A US57833756 A US 57833756A US 2920678 A US2920678 A US 2920678A
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tape
rollers
bearing element
straightening
bearing
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US578337A
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Harry L Cunningham
Koeckes Jacques
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D3/00Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00Metal working
    • Y10T29/45Scale remover or preventor
    • Y10T29/4517Rolling deformation or deflection

Definitions

  • This invention relates generally to tape reconditioning, and more particularly to an improved apparatus for straightening metallic fishing tape so that it may be reused.
  • Conventional fishing tape generally comprises an elongated metallic strip having relatively stifl characteristics such that it may be pushed through a conduit without buckling.
  • one end of the conductor is secured to the fishing tape and the tape is then pushed through and about the corners or curves of the conduit.
  • the free end of the tape emerges from the other end of the conduit, it may then be used to pull the conductor through.
  • Such tape may also be used by plumbers and similar workers for fishing obstacles out of crooked pipes and conduits.
  • Another object is to provide an apparatus of the above type which may be adjusted to adapt it to a particular tape stiffness.
  • a more general object of the invention is to provide an improved tape straightening structure which is rugged, simple and may be readily operated by unskilled personnel.
  • a mounting plate supporting pairs of tapes straightening rollers arranged in tandem.
  • Each pair of tandem rollers engages one side of the tape at spaced longitudinal points and has associated with it a bearing element positionable to engage the opposite side of the tape at a point intermedia e the spaced points whereby a frictional pressure may be applied bythe bearing element to the tape.
  • the two pairs of tape straightening rollers are longitudinally and laterally displaced so that opposite sides of the tape are treated in an identical manner and any constant radius of curvature imparted to the tape by one set of tape straightening rollers and bearing element will be corrected by the second set of tape straightening rollers.
  • suitable guide rollers are positioned at uniformly spaced longitudinal points for guiding the tape in a relatively straight line through the apparatus.
  • Figure 1 is a perspective view of the tape straightening device of this invention
  • Figure 2 is a cross section of one pair of guide rollers taken in the direction of the arrows 22 of Figure 1;
  • Figure 3 is another cross section of one of the tapestraightening rollers taken in the direction of the arrows 33 of Figure l;
  • Figure 4 is a greatly enlarged elevational view of one pair of tape straightening rollers and the associated bear ing element taken in the direction of the arrow 4 of Figure 3.
  • the tape straightening apparatus comprises a mounting plate 10 which may be secured to a wall or the side of a vehicle such as a truck. As shown, the plate 10 supports three pairs of guide rollers 11 longitudinally spaced along the horizontal center line of the plate. These guide rollers serve to guide a tape 12 which may be manually or otherwise pulled through the apparatus past the face of the plate 10.
  • first and second pairs of tape straightening rollers 13 and 14 Interposed between the two outer pairs of guide rollers 11 and on either side of the central pair of guide rollers, are first and second pairs of tape straightening rollers 13 and 14.
  • the rollers 13 in the first pair are arranged in tandem to engage one side of the tape 12 at spaced longitudinal points.
  • a bearing element 15 is adjustably positioned on the plate 10 to engage the oppo site side of the tape 12 at a location intermediate points at which the rollers 13 engage the tape. As shown, the bearing element 15 is rigidly secured to the end of a bolt 16 passing through an apertured support block 17 secured to the plate 10 as by screws or bolts 18.
  • ,Bolt 16 is provided with a head 19 and is biased in a'direction away from the tape by a spring 20 positioned between the bolt head 19 and the bottom of the support block 17.
  • a nut 21 is threaded on the portion of the bolt 16 above the support block 17 whereby rotation of the nut will serve to vary the distance of the bearing element 15 from the tape 12.
  • the coil spring 20 maintains the nut 21 in pressing engagement with the upper surface of the support block 17.
  • a second bearing element 22 is positioned on the side of the tape 12 opposite from the side engaged by the tape straightening rollers 14.
  • Bearing element 22 is rigidly secured to a bolt 23 passing upwardly through an apertured support block 24 secured by screws25 to the plate 10.
  • Bolt 23 is provided with a head 26 similar to the head 19 on'the bolt 16, and a compression spring 27 between the bolt head 26 and the upper surface of the support block 24 to bias the bearing element 22 in an upward direction away from the tape 12.
  • a nut 28 is threaded to the bolt 23 to bear against the lower surface of the support block 24 as a result of the action of the coil spring 27. Rotative'adjustment of the threaded nut 28 will accordingly adjust the distance of the bearing element 22 from the tape 12.
  • each of the guide rollers 11 is provided with a peripheral groove of a width to accommodate the tape 12 whereby the tape 12 is prevented from sliding from between the rollers by the sides'of the.
  • These grooves are of a width suflicient to accommodate the tape 12 and of a depth preferably equal to the thickness of the tape or at least,
  • each of the bearing elements such as the bearing element 15, comprises a block having its opposite sides sloping towards each other" to terminate in a rounded edge 31'.
  • the ed'ge"31 has-a lengthat lea'st' as greatas the width of the tape 12 whereby thetape is transversely engaged across-its entire width by: the bearing. element.
  • the bearingelement is preferably positioned to provide anupward pressure on the tape 12 as it passes under the rollers13, so that a slight bow of constant radius of curvature will be imparted tothe tape. Thisupward pressure of the bearing element will serve to straighten out all kinks and curves in the tape 12 whose radius of curvatureextends in an opposite direction to that imparted by the bearing element 15.
  • the actionof the tape straightening rollers 14 and bearing element 22 is similar exceptthat the pressure is oppositely directed. Therefore, the constant radius ofcurvature imparted by the'bearing element 15 and'rollers 13 isstraightened as well as anycurves or crimps whose radius of curvature extends in the same direction as the radius of curvature imparted by the rollers 13 andbearing element 15.
  • the operation of the overall tape. straightening device will be evident from the above description.
  • the crooked tape 12 is first passed through the guide rollers and urged towards the tape straightening rollers 13, through the central guide rollers, past the tape straightening rollersld,
  • the bearing elements 15v and 22 may be retracted by threading of the nuts 21 and 28 in. the proper direction respectively, so that sufficient space is provided to facilitate insertion of the tape.
  • the bearing elements 15 and 22 are then respectively raised and lowered such that they engage oppositesides of the tape.
  • the adjustment of the bearing element 15 is such that'the upper bearing edge of the element will intersect a straight line connecting the two longitudinally spaced points on the tape 12 engaged by the tandem rollers 13.
  • a frictional pressure will be applied to the underside of the tape by the bearing element 15 as the tape .passes, under the rollers 13.
  • the bearing element 22 isasimilarly positioned to intersect the straight line connecting.
  • tape 12 is then pulled through the apparatus by any suitable means.
  • bearing elements 15 and '22 maybe independently adjusted.
  • itis possible to adapt the tapestraightening apparatus to particular tapes depending upon their stifinessl For example, if a tape is relatively stifi-and intlexiblewhereby only a slight bending; will cause a -permanent :set, it
  • the bearing elements 15 and 22- should be correspondingly positioned closer to, and preferably beyond the straight line connecting the points at which the tape straightening rollers engage the tape.
  • the entire apparatus is rugged and simple in construction and may be readily operated byunskilled personnel.
  • a tape reconditioning apparatus for straightening a crooked tape comprising, in combination: a mounting plate; a first pair of rollers secured in tandem to said plate for engaging one side of said tape at spaced points; a second pair of rollers secured in tandem to said plate. for engaging the opposite side of said tape.
  • said second pair of rollers being longitudinally and laterally spaced from said first pair of rollers; first and second bearing elements associated with said first and second pairs of rollers respectively; each of said-first and second bearing elements comprising a block having opposite sides tapering together to terminate in an elongated rounded edge having a length at least equal to the width of said tape so that said tape is subjected to frictional pressure on opposite sides by said bearing element edges respectively; means supporting said bearing elements to said plate in position to engage the sidesof said tape opposite the sides engaged by corresponding rollers atpointsbetween said spaced points respectively; and means for independently adjusting the distances between said bearingelements and straight lines connecting said spaced points respectively whereby the degree of pressure applied to said tape by said bearing elements may be varied and a constant radius bend, imparted to said tape by said first rollers and hearing element, may be straightened by said second rollers and bearing element.
  • An apparatus includingmeans for guiding said tape past said first and second pairs of rollers.
  • said means comprises two outer pairs of guiderollers and one central pair of guide rollers, each pair of guide rollers engaging opposite sides of said tape and beingsec ured'to said plate'in longitudinally uniformlyspaced relationship, said first and second pairs of rollers being positioned on either side, respectively, of said central pair of guide rollers between said outer pairs.

Description

Jan. 12, 1960 cuNNlNGHAM ETAL 2,920,678
TAPE RECONDITIONING APPARATUS Filed April 16, 1956 S 8 RM Y m m MG w R E V? m m WNR f N A U 0% K & B U Q mm HJM United States Patent 2,920,678 TAPE RECONDITIONING' APPARATUS Harry L. Cunningham and Jacques Koeckes Oxnard, Calif.
Application April 16, 1956, Serial No. 578,337
4 Claims. (Cl. 15393) This invention relates generally to tape reconditioning, and more particularly to an improved apparatus for straightening metallic fishing tape so that it may be reused.
Conventional fishing tape generally comprises an elongated metallic strip having relatively stifl characteristics such that it may be pushed through a conduit without buckling. For example, in electrical work when it is desired to pass an electrical conductor through a conduit, one end of the conductor is secured to the fishing tape and the tape is then pushed through and about the corners or curves of the conduit. When the free end of the tape emerges from the other end of the conduit, it may then be used to pull the conductor through. Such tape may also be used by plumbers and similar workers for fishing obstacles out of crooked pipes and conduits.
After a fishing tape has been used one or two times, it develops several crimps and unwieldly bends and curves. The stiffness of the tape renders it difiicult to manual straightening and it has been conventional practice, therefore, to simply scrap the fishing tape and use a fresh straight tape for a subsequent job. This practice is not only costly but requires that a large number of spare tapes be readily available.
Bearing the above factors in mind, it is a primary object of the present invention to provide a simple mechanical apparatusfor enabling plumbers, electricians, and the like to straighten crooked tapes whereby they may be re-used with the attendant cost savings advantage.
Another object is to provide an apparatus of the above type which may be adjusted to adapt it to a particular tape stiffness.
A more general object of the invention is to provide an improved tape straightening structure which is rugged, simple and may be readily operated by unskilled personnel.
These and other objects and advantages of the present invention are attained by providing a mounting plate supporting pairs of tapes straightening rollers arranged in tandem. Each pair of tandem rollers engages one side of the tape at spaced longitudinal points and has associated with it a bearing element positionable to engage the opposite side of the tape at a point intermedia e the spaced points whereby a frictional pressure may be applied bythe bearing element to the tape. The two pairs of tape straightening rollers are longitudinally and laterally displaced so that opposite sides of the tape are treated in an identical manner and any constant radius of curvature imparted to the tape by one set of tape straightening rollers and bearing element will be corrected by the second set of tape straightening rollers. Additionally, suitable guide rollers are positioned at uniformly spaced longitudinal points for guiding the tape in a relatively straight line through the apparatus.
A better understanding of a preferred embodiment of the invention will be had by referring to the accompanying drawings in which:
Figure 1 is a perspective view of the tape straightening device of this invention;
Figure 2 is a cross section of one pair of guide rollers taken in the direction of the arrows 22 of Figure 1;
Figure 3 is another cross section of one of the tapestraightening rollers taken in the direction of the arrows 33 of Figure l; and,
Figure 4 is a greatly enlarged elevational view of one pair of tape straightening rollers and the associated bear ing element taken in the direction of the arrow 4 of Figure 3. I
Referring to Figure l, the tape straightening apparatus comprises a mounting plate 10 which may be secured to a wall or the side of a vehicle such as a truck. As shown, the plate 10 supports three pairs of guide rollers 11 longitudinally spaced along the horizontal center line of the plate. These guide rollers serve to guide a tape 12 which may be manually or otherwise pulled through the apparatus past the face of the plate 10.
Interposed between the two outer pairs of guide rollers 11 and on either side of the central pair of guide rollers, are first and second pairs of tape straightening rollers 13 and 14. The rollers 13 in the first pair are arranged in tandem to engage one side of the tape 12 at spaced longitudinal points. A bearing element 15 is adjustably positioned on the plate 10 to engage the oppo site side of the tape 12 at a location intermediate points at which the rollers 13 engage the tape. As shown, the bearing element 15 is rigidly secured to the end of a bolt 16 passing through an apertured support block 17 secured to the plate 10 as by screws or bolts 18. ,Bolt 16 is provided with a head 19 and is biased in a'direction away from the tape by a spring 20 positioned between the bolt head 19 and the bottom of the support block 17. A nut 21 is threaded on the portion of the bolt 16 above the support block 17 whereby rotation of the nut will serve to vary the distance of the bearing element 15 from the tape 12. The coil spring 20 maintains the nut 21 in pressing engagement with the upper surface of the support block 17.
Similarly, a second bearing element 22 is positioned on the side of the tape 12 opposite from the side engaged by the tape straightening rollers 14. Bearing element 22 is rigidly secured to a bolt 23 passing upwardly through an apertured support block 24 secured by screws25 to the plate 10. Bolt 23 is provided with a head 26 similar to the head 19 on'the bolt 16, and a compression spring 27 between the bolt head 26 and the upper surface of the support block 24 to bias the bearing element 22 in an upward direction away from the tape 12. A nut 28 is threaded to the bolt 23 to bear against the lower surface of the support block 24 as a result of the action of the coil spring 27. Rotative'adjustment of the threaded nut 28 will accordingly adjust the distance of the bearing element 22 from the tape 12.
Referring to the cross section shown in Figure 2, it will be noted that each of the guide rollers 11 is provided with a peripheral groove of a width to accommodate the tape 12 whereby the tape 12 is prevented from sliding from between the rollers by the sides'of the.
each provided with peripheral grooves such as groove 30,
illustrated in Figure 4. These grooves are of a width suflicient to accommodate the tape 12 and of a depth preferably equal to the thickness of the tape or at least,
of suflicient extent to prevent the tape'from laterally being displaced from the rollers.
. Referring now particularly to Figure 4, it will be noted I that each of the bearing elements, such as the bearing element 15, comprises a block having its opposite sides sloping towards each other" to terminate in a rounded edge 31'. The ed'ge"31 has-a lengthat lea'st' as greatas the width of the tape 12 whereby thetape is transversely engaged across-its entire width by: the bearing. element. As will be clear from Figure 4, the bearingelement is preferably positioned to provide anupward pressure on the tape 12 as it passes under the rollers13, so that a slight bow of constant radius of curvature will be imparted tothe tape. Thisupward pressure of the bearing element will serve to straighten out all kinks and curves in the tape 12 whose radius of curvatureextends in an opposite direction to that imparted by the bearing element 15.
The actionof the tape straightening rollers 14 and bearing element 22 is similar exceptthat the pressure is oppositely directed. Therefore, the constant radius ofcurvature imparted by the'bearing element 15 and'rollers 13 isstraightened as well as anycurves or crimps whose radius of curvature extends in the same direction as the radius of curvature imparted by the rollers 13 andbearing element 15.
The operation of the overall tape. straightening device will be evident from the above description. The crooked tape 12 is first passed through the guide rollers and urged towards the tape straightening rollers 13, through the central guide rollers, past the tape straightening rollersld,
and out between the last pair of outer guide. rollers 11' as shown. When the crooked tape isinitially insertedin the apparatus, the bearing elements 15v and 22 may be retracted by threading of the nuts 21 and 28 in. the proper direction respectively, so that sufficient space is provided to facilitate insertion of the tape. The bearing elements 15 and 22 are then respectively raised and lowered such that they engage oppositesides of the tape.
Referring particularly to Figure 4 the adjustment of the bearing element 15 is such that'the upper bearing edge of the element will intersect a straight line connecting the two longitudinally spaced points on the tape 12 engaged by the tandem rollers 13. By this arrangement, a frictional pressure will be applied to the underside of the tape by the bearing element 15 as the tape .passes, under the rollers 13. The bearing element 22 isasimilarly positioned to intersect the straight line connecting.
the engagement points of the tandem rollers 14. With the bearing elements 15 and 22 adjusted as described, the
tape 12 is then pulled through the apparatus by any suitable means.
As the tape is drawn over the bearing element 15, a
constant radius of curvature will be imparted to thextape dependent upon the position of the bearing edge of the element 15 with respect to the straight line connecting the points of engagement of the tape by the rollers 13. The frictional pressure imparted to the underside of the tape during this movement is such as to straighten out any kinks or bends in the tape whose radius of curvature extends in an opposite direction as previously ,described. ABy subsequently passing the tape through the second straightening rollers 141andseeond bearing element 22, an opposite radiusof curvature is imparted to tape which compensatesfor' the'initially imparted radius of curvature, such that the tape 12, in. emerging from the outer'set of guiderollers: 1,:is substantially rectilinear.
It has been found that the use of'the tapered lbea'ring elements 15 and 22 in frictional pressure engagement with opposite sides of the ,tapeatspaced :points as'described, serves to straighten :fishing tapesmore effectively than any meansknown' heretofore.
It is to be noted that the bearing elements 15 and '22 maybe independently adjusted. By'such an arrangement, itis possible to adapt the tapestraightening apparatus to particular tapes depending upon their stifinessl For example, if a tape is relatively=stifi-and intlexiblewhereby only a slight bending; will cause a -permanent :set, it
I tend to spring it back towards arectilinear position.
would be desirable to adjust the bearing element 15 such that its bearing edge 31 is spaced at or just below the line connecting the points of engagement by the rollers 13. By this adjustment a relatively small bend is imparted to the tape. The bearing element 22, on the other hand, would be positioned even further from the line connecting the points of contact of the rollers 14 in order that the. reverse bendwould. be just sufficient to straighten the tape and not causea permanent constant radius of curvature bend tooccur in the DPP Site direction. In other words, for a relatively stiff tape it is desirable that the bearing elemcnt.15 be positioned to impart a greater bend than the element 22, assuming that the tape is moving from left to right'asviewed in:Fi'gure 1.
- For a relatively flexible tape, on the other hand, in which a relatively large bend is necessary in order to make a permanent set to remove a crooked portion, the bearing elements 15 and 22- should be correspondingly positioned closer to, and preferably beyond the straight line connecting the points at which the tape straightening rollers engage the tape. Thus, while a relatively large curvature will be imparted, the flexibility of the tape will The permanent set acquired by the tape, however, will be such that proper straightening will result.
The entire apparatus is rugged and simple in construction and may be readily operated byunskilled personnel.
Modifications within the scope and spirit of the present invention will occur to those skilled in the art. The apparatus is, therefore, not to be thought of as limited to the specific embodiment shown and described for illustrative purposes.
What is claimed is:
1. A tape reconditioning apparatus for straightening a crooked tape comprising, in combination: a mounting plate; a first pair of rollers secured in tandem to said plate for engaging one side of said tape at spaced points; a second pair of rollers secured in tandem to said plate. for engaging the opposite side of said tape. at spaced points; said second pair of rollers being longitudinally and laterally spaced from said first pair of rollers; first and second bearing elements associated with said first and second pairs of rollers respectively; each of said-first and second bearing elements comprising a block having opposite sides tapering together to terminate in an elongated rounded edge having a length at least equal to the width of said tape so that said tape is subjected to frictional pressure on opposite sides by said bearing element edges respectively; means supporting said bearing elements to said plate in position to engage the sidesof said tape opposite the sides engaged by corresponding rollers atpointsbetween said spaced points respectively; and means for independently adjusting the distances between said bearingelements and straight lines connecting said spaced points respectively whereby the degree of pressure applied to said tape by said bearing elements may be varied and a constant radius bend, imparted to said tape by said first rollers and hearing element, may be straightened by said second rollers and bearing element.
2. An apparatus according to claim 1, includingmeans for guiding said tape past said first and second pairs of rollers.
3. An apparatus according to claim 2, in which said means comprises two outer pairs of guiderollers and one central pair of guide rollers, each pair of guide rollers engaging opposite sides of said tape and beingsec ured'to said plate'in longitudinally uniformlyspaced relationship, said first and second pairs of rollers being positioned on either side, respectively, of said central pair of guide rollers between said outer pairs.
-4. An apparatus accordingtoclaim 3 inwhich each of said guide rollers and each of said pairs of rollers in tandem are provided with peripheral grooves of width 5 6 suflieient to accommodate the width of said tape whereby 2,148,357 Johnson Feb. 21, 1939 said tape is prevented from lateral movement from said 2,180,879 McFadden Nov. 21, 1939 guide rollers and from said pairs of rollers in tandem- 2,275,095 Thaden Mar. 3, 1942 2,303, d 4, 1 42 References Cited in the file of this patent 5 2 355 22; FXY,; 3 1034059 B EIZnSTATES PATENTSIUI 30 1912 FOREIGN PATENTS y 368,488 Great Britain Mar. 10, 1932 1,206,184 Welsh Nov. 28, 1916
US578337A 1956-04-16 1956-04-16 Tape reconditioning apparatus Expired - Lifetime US2920678A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114971A (en) * 1961-03-24 1963-12-24 Warner Bros Preparation of magnetic oxide coatings
US3595051A (en) * 1969-05-15 1971-07-27 Special Engineering Service In Leveling device
US3680343A (en) * 1970-03-05 1972-08-01 Allegheny Ludlum Ind Inc Apparatus for leveling thin strip
US4059215A (en) * 1975-09-05 1977-11-22 Lamons Metal Gasket Company Circular double-jacketed gasket with single joint
US5520039A (en) * 1993-04-06 1996-05-28 Witels Apparate-Maschinen Albert Gmbh & Co Kg Straightening apparatus for wire, cable and tubular material
US20040159994A1 (en) * 2001-04-24 2004-08-19 Oliver Lenzen Method and device for the production of curved spring strip sections
CN106563716A (en) * 2016-10-19 2017-04-19 中安安轩安全产业发展有限公司 Mechanism for bending profile forwards and reversely

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1034059A (en) * 1908-11-30 1912-07-30 Spirella Co Device for straightening metal strips.
US1206184A (en) * 1915-01-13 1916-11-28 Spirella Co Wire-straightening machine.
GB368488A (en) * 1931-02-11 1932-03-10 Ernest Morgan Stirling Improved means for straightening reticulated and like metal fabrics unwound from a roll
US2148357A (en) * 1936-09-24 1939-02-21 Johnson Steel & Wire Company I Wire straightening apparatus
US2180879A (en) * 1935-10-11 1939-11-21 Aluminum Co Of America Method of and apparatus for flattening sheet material
US2275095A (en) * 1939-07-05 1942-03-03 Herbert V Thaden Method and means for leveling and hardening thin gauge metals
US2303096A (en) * 1940-03-21 1942-11-24 Herbert V Thaden Apparatus for leveling and hardening sheet or strip material
US2355448A (en) * 1941-11-12 1944-08-08 Carbide & Carbon Chem Corp Band leveling apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1034059A (en) * 1908-11-30 1912-07-30 Spirella Co Device for straightening metal strips.
US1206184A (en) * 1915-01-13 1916-11-28 Spirella Co Wire-straightening machine.
GB368488A (en) * 1931-02-11 1932-03-10 Ernest Morgan Stirling Improved means for straightening reticulated and like metal fabrics unwound from a roll
US2180879A (en) * 1935-10-11 1939-11-21 Aluminum Co Of America Method of and apparatus for flattening sheet material
US2148357A (en) * 1936-09-24 1939-02-21 Johnson Steel & Wire Company I Wire straightening apparatus
US2275095A (en) * 1939-07-05 1942-03-03 Herbert V Thaden Method and means for leveling and hardening thin gauge metals
US2303096A (en) * 1940-03-21 1942-11-24 Herbert V Thaden Apparatus for leveling and hardening sheet or strip material
US2355448A (en) * 1941-11-12 1944-08-08 Carbide & Carbon Chem Corp Band leveling apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3114971A (en) * 1961-03-24 1963-12-24 Warner Bros Preparation of magnetic oxide coatings
US3595051A (en) * 1969-05-15 1971-07-27 Special Engineering Service In Leveling device
US3680343A (en) * 1970-03-05 1972-08-01 Allegheny Ludlum Ind Inc Apparatus for leveling thin strip
US4059215A (en) * 1975-09-05 1977-11-22 Lamons Metal Gasket Company Circular double-jacketed gasket with single joint
US5520039A (en) * 1993-04-06 1996-05-28 Witels Apparate-Maschinen Albert Gmbh & Co Kg Straightening apparatus for wire, cable and tubular material
US20040159994A1 (en) * 2001-04-24 2004-08-19 Oliver Lenzen Method and device for the production of curved spring strip sections
US7013547B2 (en) * 2001-04-24 2006-03-21 Valeo Systemes D'essuyage Method and device for the production of curved spring strip sections
CN106563716A (en) * 2016-10-19 2017-04-19 中安安轩安全产业发展有限公司 Mechanism for bending profile forwards and reversely

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