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Publication numberUS2452862 A
Publication typeGrant
Publication dateNov 2, 1948
Filing dateOct 19, 1945
Priority dateOct 19, 1945
Publication numberUS 2452862 A, US 2452862A, US-A-2452862, US2452862 A, US2452862A
InventorsNeff Joseph J
Original AssigneeJack & Heintz Prec Ind Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electric gauging head
US 2452862 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Nov. 2, 1948. J. NEFF ELECTRIC GUGING HEAD Filed Oct. 19, 1945 VA CUUN TUBE OSCIL LA 1017 ELEGTRONIC Vacuuu TIIE OSCILLATM EL ECTHOIIIC E LE C 77? 0NIC WLTME TER VA CUUM TUBE SGILLA TOR TUE OSCILLATOR E L E 0 TRONIG YAOU Ull ELEGTHOHIG VOLTAIE TE R VA CUUAI TUBE SGILLATOR IN VEN TOR Josspu J. NEFF ATTORNE Y Patented Nov. 2, 1948 ELEC'1RIC GAUGING HEAD Jeseph J. Neil', South Euclid, Ohio, assignor, by mesne assignments, te Jack & Heintz Precision Industries, Inc., Cleveland, Ohio, a corporation of Delaware Appiication October 19, 1945, Serie] No. 623,342

3 Claims. 1

This invention re1ates in general te electronic gauges and more particularly te gauge heads and has for ene of its primary objects te provide an improved dspl-acement pickup unit te inc]ude a driving coil and a pair of pickup cols, the pickup cols being contained in -a single coil form and arranged concentricalhr with respect te the driving ceil, the windings of the three cols being coaxial- ]y arrangecl, whereby the driving coil may fixed1y carry an iron er air core and be dsposed for rela- =tive iengitudinal -movement either inside of er outside of the pickup cols er thepickup coil ferm may carry the core and be disposed within the driving coil for relative longitudinal movement.

With the oregoing and other objects in view the nvention consists in the cembination of Darts and in the details of construction hereinaiter set i'orth in the foilowing specfication and appended claims, certan embodiments thereof being illustrated in the accompanying drawings, in which:

Fgure 1 is a schematic sectional illustratien of one form of gauge head and wiring diagram te include the osciilator and eiectrenic voltmeter circuit, the two pickup cols being stationary and the drivng coil carrying an iron core for movement longitudinailyinside the two pickup cols;

Figure 2 is a similar view of a similar arrangement showing an air core instead of an iren core;

Figure 3 is a smilar view of a medified form in which the pickup cols are stationary and earry the iron core and the drivng coil is mevable longitudinally outside of the pickup cols Figure 4 is a view simiiar te Figure 3 ei a form in which the pickup cols with the ron core are longtudinally movabie inside the stationary driving coil; and

Figure 5 is a view similar to Figures 3 and 4 in which the driving and pickup cols are both movable longitudinaliy with respect to each ether.

Referring more par-ticularly te the drawings, Figure 1 shows ene form of the invention in which the heusing shown schematically at I ha.s anchored therete a coil form 2 with a pair of 1on gtudinally arranged pickup cols 3 and. 4. Suit ab1y arranged fer iengitudinal mevement within mature are of lesser diameter and fixed to a stationary support while the .driving coil 3 is meunted cencentricaily about the pickup cols the two pickup cols is a driving coil 5 in a coil ter movement longitudinally thereof.

In Figure 4 the same general arrangement of Figure 3 is shown except that the driving coil 9 is fixed te a stationary support and the =pickup coiis I0 and I I with their armature are movable longitudinally of the driving coil.

In Figure 5 the same general arrangement of Figures 3 and 4 is shown except that the driving coil 9 and the pickup 00115 [0 and II with their armature are both movable longitudinaliy with respect te each other.

In each instance the driving coil is arranged concentricall with respect to the twe pickup cols and the armature is fixed te ether the driving coil or the pickup cols. In each instance the windings of the cols are coaxiaily arranged and the armature is fixed te one and movable with respect te another type of coil.

Also in each modification the wiring diagram includng 1eads from the cols te a circuit including a Vacuum tube oscllator and electronic veltmeter =circuit are similar to each ether and gen erally similar to that shown in the U. S. Patent te Joseph J. Neif fer Electrical caliper, No. 2364,237

dated December 5, 1944.

I claim:

1. In an eiectrcaldisplacement =pickup mechanism, a pair of longitudinaily arranged contiguous pickup coi1s of uniform outside diameters and coaxial windings, a drivng k:ei1 disposed concentrically with respect to said pickup cols, an armature arrangecl concentrically within all of sad cols and attached te one or more of said cols, said driving coil and said pickup cols beng mounted te be relatively movable iongitudnally of each other.

2. In an electrical displacement pickup mechanism, a pair of longitudnaily arranged contigueus pckup 00115 of uniform outside diameters and ceaxial windings, a. driving coil. dis-posed concentricaily within said Pckup cols, an armature er ranged concentrically within all of said cols and attached .to one or more of'said cols, said driving coil and said pickup cols being mounted te be relatvely mevable longitudinally of each ether.

3. In en electrical displacemerit pickup mechanism, a pair of longitudinally arranged contiguous pickup cols of uniform outside diameters and coaxial windings, a driving coil dispesed concentrically within said pickup cols, an armature arranged concentrically within all of said cols and said plckup col1s.

JOSEPH J, NEFI. 5

REFERENO'ES CITED 'Ihe followlng references are al! record in flle of thls patent:

Number UNI'IED S'IA'I'ES PATEN'TS Name Date R\!sso i Jan. 29, 1907 Fisher May 29, 1928 Myers Oct. 11, 1938 H0ad!ey Apr. 9, 1940 Winkler Apr. 15, 1941 Net! Dec. 5, 1944

Patent Citations
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US842339 *Apr 4, 1906Jan 29, 1907Marconi Wireless Telegraph CoApparatus for electrically indicating weight.
US1671106 *Apr 28, 1923May 29, 1928Cochrane CorpFlow meter
US2132875 *Sep 28, 1934Oct 11, 1938Crosley Radio CorpInterference suppression system for radio apparatus
US2196809 *Mar 17, 1936Apr 9, 1940Philip A JergusonTelemetric system
US2238763 *Nov 20, 1937Apr 15, 1941Telefunken GmbhArrangement for variable adjustment of band width
US2364237 *Nov 8, 1943Dec 5, 1944Jack & Heintz IncElectrical caliper
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2495157 *Aug 17, 1948Jan 17, 1950Westinghouse Electric CorpElectromagnetic device
US2568586 *Apr 3, 1946Sep 18, 1951Automatic Temperature ControlDisplacement or torque amplifier
US2585956 *Jan 6, 1949Feb 19, 1952O'connell Mccarthy ThomasMotion transmission system
US2706812 *Oct 20, 1951Apr 19, 1955American Machine & MetalsNull balance control systems
US2736101 *Jul 3, 1950Feb 28, 1956 Tramming tool
US2744335 *Jun 14, 1951May 8, 1956Bosch Arma CorpGravity pendulum device
US2786186 *Feb 18, 1953Mar 19, 1957Bosch Arma CorpVariable inductor
US2988697 *Jan 6, 1960Jun 13, 1961Albert HirschLinear selsyn or syncro-transmitter
US3045227 *Jan 27, 1958Jul 17, 1962Giorgio MinasElectromagnetic devices for converting a movement of an electric value
US3073034 *Aug 22, 1960Jan 15, 1963Owens Illinois Glass CoBottle gauging apparatus
US3094788 *Jun 9, 1958Jun 25, 1963Sheffield CorpGaging device
US3097524 *Feb 8, 1960Jul 16, 1963WLoad measuring device
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US3470459 *Mar 20, 1967Sep 30, 1969Eryx CorpAsynchronous load limiting transformer
US3795862 *Nov 24, 1971Mar 5, 1974NasaDemodulator for carrier transducers
US3827291 *Nov 29, 1971Aug 6, 1974Int Research & Dev Co LtdTransducer systems for detection of relative displacement
US4030085 *Jul 20, 1976Jun 14, 1977The United States Of America As Represented By The United States Energy Research And Development AdministrationNonferromagnetic linear variable differential transformer
US4672316 *Jul 31, 1984Jun 9, 1987Werkzeugmaschinenfabrik Oerlikon-Buhrle AgMethod for calibrating a muzzle velocity measuring device
US4727316 *Apr 16, 1985Feb 23, 1988The United States Of America As Represented By The United States Department Of EnergyTransformer current sensor for superconducting magnetic coils
US7038443Oct 10, 2003May 2, 2006Asylum Research CorporationLinear variable differential transformers for high precision position measurements
US7233140Apr 11, 2006Jun 19, 2007Asylum Research CorporationPosition sensing assembly with sychronizing capability
US7262592Apr 10, 2006Aug 28, 2007Asylum Research CorporationLinear variable differential transformers for high precision position measurements
US7271582Apr 10, 2006Sep 18, 2007Asylum Research CorporationLinear variable differential transformers for high precision position measurements
US7372254Apr 12, 2006May 13, 2008Asylum Research CorporationLinear force detecting element formed without ferromagnetic materials which produces a resolution in a range of microns or less
US7459904May 4, 2007Dec 2, 2008Roger ProkschPrecision position sensor using a nonmagnetic coil form
US8478560Jan 19, 2011Jul 2, 2013Honeywell International Inc.Three wire transformer position sensor, signal processing circuitry, and temperature compensation circuitry therefor
US20040075428 *Oct 10, 2003Apr 22, 2004Asylum Research Corporation, A Delaware CorporationLinear variable differential transformers for high precision position measurements
US20060186876 *Apr 10, 2006Aug 24, 2006Roger ProkschLinear variable differential transformers for high precision position measurements
US20060186877 *Apr 10, 2006Aug 24, 2006Roger ProkschLinear variable differential transformers for high precision position measurements
US20060186878 *Apr 13, 2006Aug 24, 2006Roger ProkschLinear variable differential transformers for high precision position measurements
US20060192551 *Apr 12, 2006Aug 31, 2006Roger ProkschLinear variable differential transformers for high precision position measurements
US20060202683 *Apr 11, 2006Sep 14, 2006Roger ProkschLinear variable differential transformers for high precision position measurements
US20070200559 *May 4, 2007Aug 30, 2007Asylum Research CorporationPosition Sensing Assembly with Synchronizing Capability
DE1261681B *Mar 3, 1959Feb 22, 1968Eric Miles LanghamElektrische Vorrichtung zum Messen der Lage zweier beweglicher Teile in Bezug aufeinander
DE1296395B *Sep 18, 1964May 29, 1969Plessey Uk LtdMessumformer
WO2002044647A3 *Nov 30, 2001Jan 16, 2003Asylum Research CorpImproved linear variable differential transformers for high precision position measurements
Classifications
U.S. Classification336/119, 324/207.18, 340/870.32, 324/202, 336/129, 336/30
International ClassificationG01D5/22, G01D5/12
Cooperative ClassificationG01D5/225
European ClassificationG01D5/22C