US3302294A - Sliding calipers provided with dial gauge - Google Patents

Sliding calipers provided with dial gauge Download PDF

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Publication number
US3302294A
US3302294A US397554A US39755464A US3302294A US 3302294 A US3302294 A US 3302294A US 397554 A US397554 A US 397554A US 39755464 A US39755464 A US 39755464A US 3302294 A US3302294 A US 3302294A
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US
United States
Prior art keywords
rod
jaw
aperture
cover
stop
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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.)
Expired - Lifetime
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US397554A
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English (en)
Inventor
Eguchi Takeshi
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.)
YEHAN NUMATA
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YEHAN NUMATA
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Publication date
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/20—Slide gauges

Definitions

  • This invention relates to sliding calipers provided with a dial gauge enclosed in a dust-proof case.
  • FIG. 1 is a plan view of calipers exemplifying the invention
  • FIG. 2 is a central longitudinal section taken in a plane parallel to that of FIG. 1;
  • FIG. 3 is a detail view showing the front end of the extensible cover portion, with a part thereof broken away.
  • the calipers comprise parallel rods 1 and 2, connected at one end by one jaw I8 of the calipers and at the other end by the bridge member 14.
  • Rod 1 is smooth and slides in the body member 3.
  • Rod 2 also slides in the body member 3, but is provided with a threaded portion which meshes with the small gears 6, 7.
  • Gear 8 is mounted coaxially of gear 6, but is free to turn relatively thereto.
  • Another large gear 9 is mounted coaxially of the small gear 7, and both gears 8 and 9 mesh with the pinion 10 fixed to the pointer 5.
  • the body member 3 is provided with a bore 12 and seated in this bore is a telescopic cover 11 which encircles the threaded rod 2, thus permitting it to slide relatively to the bore and protecting it from dust and dirt.
  • the cover 11 is composed of two telescoping tubes, 21 larger cylindrical tube and a smaller cylindrical tube, the latter being slidably mounted in the former.
  • the larger tube is provided at one end with a flange Ila and the other end of the larger tube is provided with a bore constriction 11b.
  • the function of the constriction is to act as a stop against flange 110 on one end of the smaller tube and thus prevent the latter from being drawn all the way out of the large tube when moved to the left, as illustrated in FIG. 3.
  • any number of such telescopic covers of various diameters may be so prepared and assembled as shown in FIG. 3.
  • the external diameter of the inner tube member 1112 preferably should be slightly smaller in diameter than the bore of outer tube 11 in order to slide freely therein.
  • the flange 110 should be of a diameter greater than the constriction in the outer tube.
  • the entire telescopic cover is mounted firmly in the bore 12, but is not necessarily fixed thereto.
  • stop means is provided to restrain movement of the cover 11 toward the dial gauge.
  • a fixed cover 13 covers the other end of the body member and the associated ends of the rods 1 and 2.
  • the movable jaw 18 cooperates with a fixed jaw 19 carried by the body member 3.
  • the threaded portion of the rod 2 is slightly larger in diameter than the remainder of this rod and that the smallest section of the telescopic cover 11 carries an inwardly projecting flange which catches on the end of said threaded portion to extend the telescopic cover as the rod 2 is drawn out of the body member 3, and that the gears and the threaded portion of the rod 2 are completely enclosed.
  • sliding calipers of the type comprising a hollow body, a dial gauge carried on said body, gear means within said body for controlling said gauge, a stationary first jaw carried by said body, a second jaw outside said body movable with respect to said first jaw, rod means connected to said movable jaw which extends into said body, means on said rod to turn said gears, a stop on said rod outwardly of said turning means, said body being provided with an aperture through which said rod extends, the improvement which comprises a tubular cover encircling said rod and extending through said aperture, said cover having one end formed to catch on said stop on said rod while its other end is formed to catch on the inner edge of said aperture, said cover comprising at least two relatively telescopic tubular portions, the innermost of which catches on said stop, while the outermost catches on said aperture, said portions being of sufficient length to retain a telescopic relationship when the jaws are in a fully open position.
  • sliding calipers of the type comprising a hollow body, a dial gauge carried on said body, gear means within said body for controlling said gauge, a stationary first jaw carried by said body, a second jaw outside said body movable with respect to said first jaw, rod means connected to said movable jaw which extends into said body, means on said rod to turn said gears, a stop on said rod outwardly of said turning means, said body being provided with an aperture through which said rod extends, the improvement which comprises an extensible tubular cover encircling said rod and extending into said aperture, said cover comprising at least two relatively telescopic tubular portions, the innermost of which catches on said stop at its outer end, while the outermost of which catches on the inner end of said aperture at its inner end, said portion being of sufiicient length to retain a telescopic relationship when the jaws are in a fully open position.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
US397554A 1963-10-15 1964-09-18 Sliding calipers provided with dial gauge Expired - Lifetime US3302294A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7729763 1963-10-15

Publications (1)

Publication Number Publication Date
US3302294A true US3302294A (en) 1967-02-07

Family

ID=13629939

Family Applications (1)

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US397554A Expired - Lifetime US3302294A (en) 1963-10-15 1964-09-18 Sliding calipers provided with dial gauge

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US (1) US3302294A (fr)
CH (1) CH419628A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447244A (en) * 1967-08-07 1969-06-03 Jule A Scholl Caliper
US3638324A (en) * 1969-07-31 1972-02-01 Cass Kaifesh Gage
DE3039103A1 (de) * 1979-10-23 1982-03-18 Kabushiki Kaisha Mitutoyo Seisakusho, Tokyo Schieblehre
US4375722A (en) * 1978-07-13 1983-03-08 Kabushiki Kaisha Mitutoyo Seisakusho Vernier caliper
CN113846820A (zh) * 2021-09-23 2021-12-28 中建五局华东建设有限公司 砌墙体用预制灰饼

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB179910A (en) * 1921-05-12 1923-07-11 Krupp Ag Improvements in micrometer gauges provided with an indicating device
US1621526A (en) * 1923-09-14 1927-03-22 Culell John Caliper
US1703736A (en) * 1926-12-10 1929-02-26 Alfred P Jacob Measuring instrument
US1878990A (en) * 1928-09-26 1932-09-20 Fred W Sigsbey Micrometer gauge
US2846769A (en) * 1955-10-21 1958-08-12 George R Colont Measuring device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB179910A (en) * 1921-05-12 1923-07-11 Krupp Ag Improvements in micrometer gauges provided with an indicating device
US1621526A (en) * 1923-09-14 1927-03-22 Culell John Caliper
US1703736A (en) * 1926-12-10 1929-02-26 Alfred P Jacob Measuring instrument
US1878990A (en) * 1928-09-26 1932-09-20 Fred W Sigsbey Micrometer gauge
US2846769A (en) * 1955-10-21 1958-08-12 George R Colont Measuring device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447244A (en) * 1967-08-07 1969-06-03 Jule A Scholl Caliper
US3638324A (en) * 1969-07-31 1972-02-01 Cass Kaifesh Gage
US4375722A (en) * 1978-07-13 1983-03-08 Kabushiki Kaisha Mitutoyo Seisakusho Vernier caliper
DE3039103A1 (de) * 1979-10-23 1982-03-18 Kabushiki Kaisha Mitutoyo Seisakusho, Tokyo Schieblehre
US4399613A (en) * 1979-10-23 1983-08-23 Kabushiki Kaisha Mitutoyo Seisakusho Two-leg vernier calipers and its manufacturing method
CN113846820A (zh) * 2021-09-23 2021-12-28 中建五局华东建设有限公司 砌墙体用预制灰饼

Also Published As

Publication number Publication date
CH419628A (fr) 1966-08-31

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