Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS343582 A
Publication typeGrant
Publication dateJun 15, 1886
Filing dateMar 20, 1880
Publication numberUS 343582 A, US 343582A, US-A-343582, US343582 A, US343582A
InventorsJohn Harwood
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Ring-gage
US 343582 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

(No Model.)

J. HARWOODIY RINGGAGB. No. 343,582n PatentedvJune 15, 1886.

UNITED STATES PATENT OEEICEo JOHN HARWOOD, OF SOMERVILLE, MASSACHUSETTS.

RING-GAGE.

SPECIFICATION forming part of Letters Patent No. 343,582, dated June l5, 1886.

Application filed March 20, 1886. Serial No. 195,899.

To all whom it my concern,.-

Be it known that I, JOHN HARWOOD, of Somerville, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Ring-Gages, of Whichthe following is a specification.

Thisimprovement relates to gages for jeWeL ers use in measuring and ascertaining the size of finger-rings.'

In the accompanying drawings, in which .similar letters of reference indicate like parts,

Figure lis an elevation of my improved ringgage. Fig. 2 is a longitudinal section of the same.

Ring-gages have been heretofore ordinarily constructed of wood or metal. Vhen made of Wood, they soon warp out of shape, and when made of metal they are apt to scratch and mar the ring beingimeasured.

In this invention I provide a core of metal, and cover or coat it with Celluloid, zylonite, or other analogous substance or compound which Will not scratch the ring.

A is ametallic tubular core,and B is a cov- (No model.)

As an improved article of manufacture, a

ring-gage constructed with a metallic core covered or coated with Celluloid, zylonite, or

other analogous substance or compound, substantially as and for the purpose set forth.

JOHN HAEWOOD.

Witnesses:

HENRY W. VVTLLIAMs, J. M. HAETNETT.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4964222 *Jan 19, 1990Oct 23, 1990Keener Robert LRing sizer
US5604989 *Apr 6, 1995Feb 25, 1997Stevenson; Kim E.Shotgun barrel bore checking gauge
US7181858 *Aug 6, 2004Feb 27, 2007Cheri Marie HaugBeaded jewelry mandrel and method of jewelry assembly
US7322119 *Jan 8, 2007Jan 29, 2008Cheri Marie HaugBeaded jewelry mandrel and method of jewelry assembly
US8875411Sep 11, 2012Nov 4, 2014Turki Awwad Al-DhafiriCylindrical ruler
Classifications
Cooperative ClassificationG01B5/12