UST934002I4 - Defensive publication - Google Patents

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Publication number
UST934002I4
UST934002I4 US40045273A UST934002I4 US T934002 I4 UST934002 I4 US T934002I4 US 40045273 A US40045273 A US 40045273A US T934002 I4 UST934002 I4 US T934002I4
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United States
Prior art keywords
tensometer
less
heads
error angle
calibration position
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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.)
Pending
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Priority to US40045273 priority Critical patent/UST934002I4/en
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Publication of UST934002I4 publication Critical patent/UST934002I4/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
    • G01L5/106—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means for measuring a reaction force applied on a cantilever beam
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
    • G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means

Abstract

AN IMPROVED ELECTRON-MECHANICAL THREADLINE-TENSOMETER THAT GIVES AN INDICATED TENSION THAT IS LARGELY INDEPENDENT OF THE ERROR ANGLE BETWEEN THE CALIBRATION POSITION AND THE ACTUAL POSITION OF THE TENSOMETER IN USE, IS PROVIDED BY HAVING AT LEAST ONE PAIR OF CONVENTIONAL STRIPCANTILEVER TENSOMETER HEADS MOUNTED PERPENDICULAR TO EACH OTHER. IN THE MOST PREFERRED EMBODIMENT THE AXES OF HEADS ARE MERELY PARALLEL RATHER THAN BEING IN-LINE, AND THE CALIBRATION POSITION IS SUCH THAT THE CALIBRATING LOAD CAUSES EQUAL DEFLECTION IN EACH OF THE STRIP CANTILEVERS. THE PERCENTAGE ERROR IN INDICATED TENSION, CAUSED BY AN ERROR ANGLE OF $ IN POSITIONING THE TENSOMETER IN ACTUAL USE, IS LESS THAN 0.5% FOR $ OF $5*; LESS THAN 1.5% FOR $ OF $10*; AND LESS THAN 3.5% FOR $ OF $15*.

Description

DEFENSIWE PUBLICATIUN UNITED STATES PATENT AND TRADEMARK OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16,1969, 8G9 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of sp 'vution, including claims and sheets of drawings contained in the application as originally filed. The files of these applicati. s are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent and Trademark Ofiice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED MAY 6, 1975 T934,002 TENSOMETER George Cheatham Trail, Jr., 138 Dovershire Drive, Matthews, N.C. 28105 Continuation of application Ser. No. 292,569, Sept. 27, 1972. This application Sept. 24, 1973, Ser. No. 400,452
Int. Cl. G011 5/10 U.S. Cl. 73-144 1 Sheet Drawing. 10 Pages Specification An improved clectro-rnechanical thrcadline-tensometer that gives an indicated tension that is largely independent of the error angle between the calibration position and the actual position of the tensometer in use, is provided by having at least one pair of conventional stripcantilever tensometer heads mounted perpendicular to each other. In the most preferred embodiment the axes of heads are merely parallel rather than being in-line, and the calibration position is such that the calibrating load causes equal deflection in each of the strip cantilevers. The percentage error in indicated tension, caused by an error angle of 6 in positioning the tensometer in actual use, is less than 0.5% for 0 of :5; less than 1.5% for 0 of :10; and less than 3.5% for 0 of :15".
May 6, 197% G. C. TRAIL. JR
TENSOMETER Original Filed Sept. 27, 1972
US40045273 1973-09-24 1973-09-24 Defensive publication Pending UST934002I4 (en)

Priority Applications (1)

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US40045273 UST934002I4 (en) 1973-09-24 1973-09-24 Defensive publication

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US40045273 UST934002I4 (en) 1973-09-24 1973-09-24 Defensive publication

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UST934002I4 true UST934002I4 (en) 1975-05-06

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US40045273 Pending UST934002I4 (en) 1973-09-24 1973-09-24 Defensive publication

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1003243A3 (en) * 1989-04-19 1992-02-04 Picanol Nv Apparatus for measuring the tension in a textile thread
US5277072A (en) * 1990-11-22 1994-01-11 Hottinger Baldwin Messtechnik Gmbh Device for measuring a force causing tensile stress in a thread
US6119530A (en) * 1998-03-09 2000-09-19 Biomotions, Inc. Force sensing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1003243A3 (en) * 1989-04-19 1992-02-04 Picanol Nv Apparatus for measuring the tension in a textile thread
US5277072A (en) * 1990-11-22 1994-01-11 Hottinger Baldwin Messtechnik Gmbh Device for measuring a force causing tensile stress in a thread
US6119530A (en) * 1998-03-09 2000-09-19 Biomotions, Inc. Force sensing device

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