GB610331A - Machine for testing the accuracy of curves having helical characteristics and indicating or measuring errors therein - Google Patents

Machine for testing the accuracy of curves having helical characteristics and indicating or measuring errors therein

Info

Publication number
GB610331A
GB610331A GB26548/45A GB2654845A GB610331A GB 610331 A GB610331 A GB 610331A GB 26548/45 A GB26548/45 A GB 26548/45A GB 2654845 A GB2654845 A GB 2654845A GB 610331 A GB610331 A GB 610331A
Authority
GB
United Kingdom
Prior art keywords
test
piece
carriage
pin
shaft
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
GB26548/45A
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.)
Fellows Gear Shaper Co
Original Assignee
Fellows Gear Shaper Co
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 Fellows Gear Shaper Co filed Critical Fellows Gear Shaper Co
Publication of GB610331A publication Critical patent/GB610331A/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
    • G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
    • G01B5/16—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures between a succession of regularly spaced objects or regularly spaced apertures
    • G01B5/163—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures between a succession of regularly spaced objects or regularly spaced apertures of screw-threads

Abstract

610,331. Gauging-apparatus. FELLOWS GEAR SHAPER CO. Oct. 11, 1945, No. 26548. Convention date, March 2. [Class 106 (ii)] A machine for testing helical curves is characterised in that driving means includes a rotatable element adapted to cause and to synchronise rotation of the test-piece and linear displacement of a carriage carrying a dial gauge or the like, the feeler of which is in engagement with the surface of the test-piece. The test-piece 11 is rotatably mounted between head and tail stocks (not shown) and the measuring instrument 13, having a feeler 14 to engage a tooth of the test-piece, is adjustably mounted on a measuring carriage 12 which is supported on the main structure (not shown) for movement in a direction parallel to the axis of the test-piece. The carriage may be moved by means of a wheel 15 which rotates a shaft 16, an offset ratio bar 22 on the shaft engaging a pin 23 on the carriage. The extent of movement of the carriage for a given rotation of the shaft 16 may be set, according to the angle of the teeth on the test-piece, by adjusting the pin 23 vertically on the carriage by means of a screw and hand crank (not shown) and the pin is maintained in contact with the ratio bar by means of a weight 29 connected to the carriage. The shaft 16 also carries a second ratio bar 31 which engages a similarly adjustable pin 32 and so imparts vertical movement to a drive slide 33, the weight of which maintains the pin and arm in contact. The drive slide is secured, by means of clamps 45, 51, controlled by a knob 55, to either portion of a steel tape 34 and so imparts rotary movement to a disc 35 fast on a spindle carrying the test-piece. The tape is secured to the disc 35, and to an idler mounted on a spring-located arm 37, by means of studs. The test-piece is thus rotated as the measuring instrument is moved linearly so that the latter will indicate any variations from true form of the helical teeth of the testpiece. The feeler 14 may control recording means as described in U.S.A. Specification 2,305,264.
GB26548/45A 1945-03-02 1945-10-11 Machine for testing the accuracy of curves having helical characteristics and indicating or measuring errors therein Expired GB610331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US610331XA 1945-03-02 1945-03-02

Publications (1)

Publication Number Publication Date
GB610331A true GB610331A (en) 1948-10-14

Family

ID=22033213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26548/45A Expired GB610331A (en) 1945-03-02 1945-10-11 Machine for testing the accuracy of curves having helical characteristics and indicating or measuring errors therein

Country Status (1)

Country Link
GB (1) GB610331A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110940254A (en) * 2019-09-12 2020-03-31 华南理工大学 Gear pitch deviation measuring method and measuring tool thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110940254A (en) * 2019-09-12 2020-03-31 华南理工大学 Gear pitch deviation measuring method and measuring tool thereof
CN110940254B (en) * 2019-09-12 2021-06-04 华南理工大学 Gear pitch deviation measuring method and measuring tool thereof

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