US1020832A - Jeweler's gage. - Google Patents

Jeweler's gage. Download PDF

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Publication number
US1020832A
US1020832A US61037911A US1911610379A US1020832A US 1020832 A US1020832 A US 1020832A US 61037911 A US61037911 A US 61037911A US 1911610379 A US1911610379 A US 1911610379A US 1020832 A US1020832 A US 1020832A
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United States
Prior art keywords
bar
gage
fork
jewel
double
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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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US61037911A
Inventor
Lewis K Malvern
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.)
Elgin National Watch Co
Original Assignee
Elgin National Watch 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.)
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Publication date
Application filed by Elgin National Watch Co filed Critical Elgin National Watch Co
Priority to US61037911A priority Critical patent/US1020832A/en
Application granted granted Critical
Publication of US1020832A publication Critical patent/US1020832A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • G01B3/30—Bars, blocks, or strips in which the distance between a pair of faces is fixed, although it may be preadjustable, e.g. end measure, feeler strip

Definitions

  • LEWIS K MALVERN, OF ELGIN, ILLINOIS, ASSIGNOR 'IO ELGIN NATIONAL WATCH COMPANY, OF ELGIN, ILLINOIS, A CORPORATION OF ILLINOIS.
  • My invention relates to new and useful improvements in gages, and more especially to gages for measuring a roller fork to determine the size of the jewel pin to cooperate therewith.
  • An object of the invention is to provide a gage whereby either a single roller fork or a double roller fork may be readily measured, and the size of the jewel pin to cooperate therewith quickly determined.
  • Fig. 1 is a face view of the gage having my improvements applied thereto;
  • Fig. 2 is an edge view of the same;
  • Fig. 3 is a perspective view showing a single fork and a double fork applied to the gage.
  • a gage which consists of a bar 1 having an enlarged end 2, which serves as a handle or supporting means for said bar.
  • the bar 1 as clearly shown in Fig. 2, is
  • Figs. 1 and 2 On the side face of the gage, as shown in Figs. 1 and 2, are graduated marks 8, which indicate the size of the jewel pin for the roller fork.
  • the fork 1 (see Fig. 3) is slid along the lower edge of the wedge-shaped bar 1 until it fits snugly against each side of the bar. The graduation of the bar at this particular point is read, which will give the exact size of jewel pin necessary to properly cooperate with the fork.
  • the double fork 5 is provided with a central finger or tongue 6, which extends between the forks and would prevent the fork from engaging the lower smooth edge of the gage bar.
  • a central finger or tongue 6 which extends between the forks and would prevent the fork from engaging the lower smooth edge of the gage bar.
  • the double roller fork is placed first on one projection and then another, which projections vary in size, owing to the tapered or wedge shape of the gage bar, until a projection is found which fits between the outer forks.
  • the central finger or tongue will extend along the inclined face of the projection, and this inclined part or cut-away portion in the upper edge of the bar allows the projection to enter between the outer forks.
  • a gage for jewel pins comprising a flat bar, the sides of which gradually approach each other, one of the edges of the bar having equally spaced notches thereon to receive the central tongue of a double roller fork, said bar having equally spaced graduations on one face thereof whereby the proper size jewel pin for the fork may be determined.
  • a gage for jewel pins comprising a fiat bar, the sides of which gradually approach each other, one of the edges of the bar being smooth and adapted to receive the prongs of a single roller fork, the other edge of said bar having equally spaced notches to receive the central tongue of a double roller fork, said bar having equally spaced graduations on one face thereof, whereby the proper size jewel pin for the double roller fork or for the single roller fork may be determined.
  • a gage for jewel pins comprising a flat bar, the sides of which gradually approach each other, one of the edges of the bar being smooth and adapted to receive the prongs of a single roller fork, the other edge of said bar having equally spaced notches to receive the central tongue of a double roller In testimony whereof I aflix my signature 1n presence of two Witnesses.

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  • General Physics & Mathematics (AREA)
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Description

L. K. MALVERN.
JEWELERS GAGE.
APPLICATION FILED PBB.23, 1911.
1,020,832, Patented Mar. 19, 1912.
W By mm%m Aflomeyj' coummu PLANOGRAPH CDQWASIHNGTOPLD- C.
UNITED s rains arana OFFICE.
LEWIS K. MALVERN, OF ELGIN, ILLINOIS, ASSIGNOR 'IO ELGIN NATIONAL WATCH COMPANY, OF ELGIN, ILLINOIS, A CORPORATION OF ILLINOIS.
J EWELER S GAG-E.
T 0 all whom it may concern:
Be it known that I, LEWIS K. MALVERN, a citizen of the United States, residing at Elgin, in the county of Kane, State of Illinois, have invented certain new and useful Improvements in Jewelers Gages, of which the following is a description, reference being had to the accompanying drawing and to the letters and figures of reference marked thereon.
My invention relates to new and useful improvements in gages, and more especially to gages for measuring a roller fork to determine the size of the jewel pin to cooperate therewith.
An object of the invention is to provide a gage whereby either a single roller fork or a double roller fork may be readily measured, and the size of the jewel pin to cooperate therewith quickly determined.
In the drawings,-Figure 1 is a face view of the gage having my improvements applied thereto; Fig. 2 is an edge view of the same; and Fig. 3 is a perspective view showing a single fork and a double fork applied to the gage.
In carrying out my invention, I have formed a gage which consists of a bar 1 having an enlarged end 2, which serves as a handle or supporting means for said bar. The bar 1, as clearly shown in Fig. 2, is
wedge-shaped or tapered toward its outer end.
On the side face of the gage, as shown in Figs. 1 and 2, are graduated marks 8, which indicate the size of the jewel pin for the roller fork. In measuring the single roller fork, the fork 1 (see Fig. 3) is slid along the lower edge of the wedge-shaped bar 1 until it fits snugly against each side of the bar. The graduation of the bar at this particular point is read, which will give the exact size of jewel pin necessary to properly cooperate with the fork.
The double fork 5 is provided with a central finger or tongue 6, which extends between the forks and would prevent the fork from engaging the lower smooth edge of the gage bar. I have, therefore, formed the upper edge of the gage bar with a series of inclined surfaces, which meet to form pro- Specification of Letters Patent.
Application filed February 23, 1911.
Patented Mar. 19, 1912.
Serial No. 610,379.
jections 7. The sides of the projections are preferably flat, although it is obvious from certain aspects of the invention, these proj ecting parts may be differently shaped from that shown in the drawings.
The double roller fork is placed first on one projection and then another, which projections vary in size, owing to the tapered or wedge shape of the gage bar, until a projection is found which fits between the outer forks. The central finger or tongue will extend along the inclined face of the projection, and this inclined part or cut-away portion in the upper edge of the bar allows the projection to enter between the outer forks. When the proper projection is found which fits between the forks, the gage at this projection is read, and thereby the exact size of jewel pin necessary to cooperate with the double fork is determined.
Having thus described my invention, what I claim. as new and desire to secure by Letters Patent, is
1. A gage for jewel pins comprising a flat bar, the sides of which gradually approach each other, one of the edges of the bar having equally spaced notches thereon to receive the central tongue of a double roller fork, said bar having equally spaced graduations on one face thereof whereby the proper size jewel pin for the fork may be determined.
2. A gage for jewel pins comprising a fiat bar, the sides of which gradually approach each other, one of the edges of the bar being smooth and adapted to receive the prongs of a single roller fork, the other edge of said bar having equally spaced notches to receive the central tongue of a double roller fork, said bar having equally spaced graduations on one face thereof, whereby the proper size jewel pin for the double roller fork or for the single roller fork may be determined.
3. A gage for jewel pins comprising a flat bar, the sides of which gradually approach each other, one of the edges of the bar being smooth and adapted to receive the prongs of a single roller fork, the other edge of said bar having equally spaced notches to receive the central tongue of a double roller In testimony whereof I aflix my signature 1n presence of two Witnesses.
LEWIS K. MALVERN.
Witnesses HARRY E. HENDRIoKsoN,
GEORGE E. HUNTER.
Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.
US61037911A 1911-02-23 1911-02-23 Jeweler's gage. Expired - Lifetime US1020832A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US61037911A US1020832A (en) 1911-02-23 1911-02-23 Jeweler's gage.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61037911A US1020832A (en) 1911-02-23 1911-02-23 Jeweler's gage.

Publications (1)

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US1020832A true US1020832A (en) 1912-03-19

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