GB548446A - Improvements in or relating to devices for testing gears, particularly helical gears - Google Patents

Improvements in or relating to devices for testing gears, particularly helical gears

Info

Publication number
GB548446A
GB548446A GB9126/41A GB912641A GB548446A GB 548446 A GB548446 A GB 548446A GB 9126/41 A GB9126/41 A GB 9126/41A GB 912641 A GB912641 A GB 912641A GB 548446 A GB548446 A GB 548446A
Authority
GB
United Kingdom
Prior art keywords
edge
feeler
straight
cylinder
slide
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
Application number
GB9126/41A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB548446A publication Critical patent/GB548446A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/20—Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • A Measuring Device Byusing Mechanical Method (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

548,446. Gauging toothed gears. ERNST, D. July 18, 1941, No. 9126. Convention date, Sept. 19, 1940. [Class 106 (ii)] For examining the helix, the gear and a coaxial cylinder are held while a straight-edge element engaging the cylinder and a feeler engaging a gear tooth and operating a recording device are moved tangentially to the cylinder and parallel to the common axis, whereas for tooth contour, the feeler and straight-edge are at rest and the gear and cylinder moved parallel with the straight edge. The base 1 is provided with horizontal and vertical guides 2, 3. The horizontal guide 2 has a slide 5 moved by a screwed spindle 4 and carrying a track 6 for a transverse slide 7 moved by a screwed spindle 8. In a sleeve 9 of the slide 7 is a rotatable mounting mandrel 10 for the gear 11 to be tested the mandrel having also fixed to it a rolling cylinder 13. A slide 14 movable by a screwed spindle 16 over the vertical guide 3 carries a table 15, a feeler 17 and recording means 19, 20. The feeler 17 contacts the tooth flank to be examined and movement of the feeler is transmitted by multiplying leverage 18 to a scriber 19 recording on a drum 21 rotated by a cord 24 passing over a sheave 23. A straight-edge 25 frictionally engages the cylinder 13 under the constant pressure of a spring 27 acting on spindle 4. An arm 26 of the base 1 has a guide 261 in which the straight-edge 25 slides. The movement of the straight-edge 25 is controlled by a guide groove 28 in a disc 30 which is engaged by a member 29 on the part 25. The disc is rotatable and fixable in a holder 31 integral with the table 15. The diameter of the cylinder 13 is equal to that of the base circle of the helical gear 11 and when the slide 7 is moved parallel with the rule or straight-edge 25 the contacting point of the feeler 17 which is vertically above the edge of the rule describes an involate curve coinciding with the contour of the tooth. Deviations are transmitted to the feeler 17 and hence to the scriber 19 and are recorded on the paper on the drum 20 which is moved by attaching the cord 24 to the slide 7. To examine the helix, the disc 30 is set to the correct helix angle and the spindle 16 rotated, the cord 24 being attached to the base 1.
GB9126/41A 1940-09-19 1941-07-18 Improvements in or relating to devices for testing gears, particularly helical gears Expired GB548446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH548446X 1940-09-19

Publications (1)

Publication Number Publication Date
GB548446A true GB548446A (en) 1942-10-09

Family

ID=4519481

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9126/41A Expired GB548446A (en) 1940-09-19 1941-07-18 Improvements in or relating to devices for testing gears, particularly helical gears

Country Status (1)

Country Link
GB (1) GB548446A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133134A (en) * 1987-08-20 1992-07-28 Ambrose Wilfred G Apparatus and method for on site testing of involute axle gear parameters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133134A (en) * 1987-08-20 1992-07-28 Ambrose Wilfred G Apparatus and method for on site testing of involute axle gear parameters

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