GB588047A - Improvements in and relating to electrical calipers - Google Patents

Improvements in and relating to electrical calipers

Info

Publication number
GB588047A
GB588047A GB21993/44A GB2199344A GB588047A GB 588047 A GB588047 A GB 588047A GB 21993/44 A GB21993/44 A GB 21993/44A GB 2199344 A GB2199344 A GB 2199344A GB 588047 A GB588047 A GB 588047A
Authority
GB
United Kingdom
Prior art keywords
armature
coils
frame
finger
nov
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
GB21993/44A
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.)
Jack and Heintz Inc
Original Assignee
Jack and Heintz Inc
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 Jack and Heintz Inc filed Critical Jack and Heintz Inc
Publication of GB588047A publication Critical patent/GB588047A/en
Expired legal-status Critical Current

Links

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

588,047. Linear - dimension gauges. JACK & HEINTZ, Inc. Nov. 8, 1944, No. 21993. Convention date, Nov. 8,1943. [Class 106 (ii)] A calliper gauge for giving an immediate visual indication of the diameter of a workpiece comprises a U-shaped frame 1 with a partially hollow handle 2 attached to one side of the frame housing a displacement " pickup " mechanism including a driving coil 6, two pick-up coils 4, 5 and an armature 8 normally held centrally within the coils by means of a spring 7. A stylus finger 9 having a ball point 10 is attached directly to the armature, and an adjustable abutment 14 is mounted on the opposite side of the frame 1 so as to be coaxial with the stylus finger 9. Alternating current supplied to the coil 6 from an oscillator induces a current of equal voltage in the coils 4, 5 when the armature is central, but movement of the armature due to the insertion of a workpiece between members 10, 14 causes a voltage difference in the coils 4, 5 which is registered on an electronic voltmeter calibrated to read in units of tenth of thousandths of an inch. A stud 18 on the frame 1 guides the finger 9, and a rod 19 at the opposite side of the armature 8 passes through a wall in the handle 2 and is provided with a head engaged by the spring 7.
GB21993/44A 1943-11-08 1944-11-08 Improvements in and relating to electrical calipers Expired GB588047A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US588047XA 1943-11-08 1943-11-08

Publications (1)

Publication Number Publication Date
GB588047A true GB588047A (en) 1947-05-13

Family

ID=22019028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21993/44A Expired GB588047A (en) 1943-11-08 1944-11-08 Improvements in and relating to electrical calipers

Country Status (1)

Country Link
GB (1) GB588047A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129131A (en) * 1982-10-27 1984-05-10 Massey Ferguson Perkins Ltd Caliper gauge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2129131A (en) * 1982-10-27 1984-05-10 Massey Ferguson Perkins Ltd Caliper gauge

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