US1621778A - Caliper - Google Patents

Caliper Download PDF

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Publication number
US1621778A
US1621778A US746109A US74610924A US1621778A US 1621778 A US1621778 A US 1621778A US 746109 A US746109 A US 746109A US 74610924 A US74610924 A US 74610924A US 1621778 A US1621778 A US 1621778A
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US
United States
Prior art keywords
dial
gear
caliper
pin
arm
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 - Lifetime
Application number
US746109A
Inventor
Haglund Axel
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.)
OSCAR B LINDER
Original Assignee
OSCAR B LINDER
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 OSCAR B LINDER filed Critical OSCAR B LINDER
Priority to US746109A priority Critical patent/US1621778A/en
Application granted granted Critical
Publication of US1621778A publication Critical patent/US1621778A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • G01B3/16—Compasses, i.e. with a pair of pivoted arms
    • G01B3/166—Compasses, i.e. with a pair of pivoted arms provided with a measuring scale

Definitions

  • My invention is an improved caliper or divider.
  • Figure 1 is a front elevation of my caliper.
  • Figure 2 is a side elevation of the same.
  • Figure 3 is a fragmentary front elevation of the calipers with the cover plate removed.
  • Figure 4- is a fragmentary front elevation of my caliper with the front plate and dial removed.
  • my calipers include an arm 1 and an arm 2 pivoted thereto as shown at 3.
  • a circular head 4 is formed on the arm 1 and a pin 5 is secured therein and extends therefrom.
  • a dial 6 is journaled on the pin 5 and has a gear 7 secured to the rear thereof.
  • a gear segment 8 is formed on the upper Serial No. 745,109.
  • the gear ratio between 7 and segment 8 can be as large or as small as desired within the limits of the space between the pivot 40 3 and pin 5.
  • a cover plate 9 is secured to the outer end of the pin 5 and has a slot 10 formed therein through which the dial 6 is visible. This dial is suitably calibrated to suit the conditions of the work;
  • a caliper comprising an arm having a circular head, a pin concentrically disposed with respect to and rigidly mounted in said head, a gear rotatively mounted on said pin, a second arm pivotally secured to said head, and having a segmental gear adapted to mesh with said first named gear, a dial secured to said first named gear and adapted to rotate therewith, said dial having a diameter equal to the diameter of said head, and a circular cover plate of the same diam eter as said dial and head, and being disposed over said dial, and rigidly mounted on said pin, said plate being provided with an aperture through whloh said dial is visible.

Description

v 1,621,778 March 22 1927- A. HAGLUND CALIPER 1 Filed out. 27. 1924 INVEN TOR. flxa l/mww.
Patented Mar. 22, 1927.,
UNITED STATES PATENT OFFICE.
AXEL HAGLUND, OF OAKLAND, CALIFGRNIA, ASSIGNOE O1? ONE-HALF TO OSCAR B. LINDER, OF OAKLAND, CALIFORNIA.
GALIPER.
Application filed October 27, 1924:.
My invention is an improved caliper or divider.
The object of my invention is to provide a calibrated dial operated by the arms of the calipers, the rotation of said dial being increased through suitable gearing so that the angular displacement thereof is sufiiciently great to permit the calibrations thereon to be easily read. For example, a
movement of a quarter of an inch at the tips shown on the dial.
In the annexed drawing in which my invention is illustrated,
Figure 1 is a front elevation of my caliper.
Figure 2 is a side elevation of the same.
Figure 3 is a fragmentary front elevation of the calipers with the cover plate removed.
Figure 4- is a fragmentary front elevation of my caliper with the front plate and dial removed.
Referring more particularly to the drawing, my calipers include an arm 1 and an arm 2 pivoted thereto as shown at 3.
A circular head 4 is formed on the arm 1 and a pin 5 is secured therein and extends therefrom. A dial 6 is journaled on the pin 5 and has a gear 7 secured to the rear thereof. A gear segment 8 is formed on the upper Serial No. 745,109.
edge of the arm 2 and meshes with the gear V I. the arm 2 will cause a rotation of the gear 7 and dial 6.
The gear ratio between 7 and segment 8 can be as large or as small as desired within the limits of the space between the pivot 40 3 and pin 5.
A cover plate 9 is secured to the outer end of the pin 5 and has a slot 10 formed therein through which the dial 6 is visible. This dial is suitably calibrated to suit the conditions of the work;
Having described my invention, I claim: A caliper comprising an arm having a circular head, a pin concentrically disposed with respect to and rigidly mounted in said head, a gear rotatively mounted on said pin, a second arm pivotally secured to said head, and having a segmental gear adapted to mesh with said first named gear, a dial secured to said first named gear and adapted to rotate therewith, said dial having a diameter equal to the diameter of said head, and a circular cover plate of the same diam eter as said dial and head, and being disposed over said dial, and rigidly mounted on said pin, said plate being provided with an aperture through whloh said dial is visible.
In testimony whereof I aflix my signature.
AXEL HAGLUND.
Thus it will be seen that a movement of 35
US746109A 1924-10-27 1924-10-27 Caliper Expired - Lifetime US1621778A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US746109A US1621778A (en) 1924-10-27 1924-10-27 Caliper

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US746109A Expired - Lifetime US1621778A (en) 1924-10-27 1924-10-27 Caliper

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2768446A (en) * 1956-02-20 1956-10-30 Walter O Gorr Caliper
US2787835A (en) * 1955-10-14 1957-04-09 Homer F Butts Micrometer calipers
US4294264A (en) * 1976-03-31 1981-10-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Cervix-to-rectum measuring device in a radiation applicator for use in the treatment of cervical cancer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2787835A (en) * 1955-10-14 1957-04-09 Homer F Butts Micrometer calipers
US2768446A (en) * 1956-02-20 1956-10-30 Walter O Gorr Caliper
US4294264A (en) * 1976-03-31 1981-10-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Cervix-to-rectum measuring device in a radiation applicator for use in the treatment of cervical cancer

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