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Publication numberUS74466 A
Publication typeGrant
Publication dateFeb 11, 1868
Publication numberUS 74466 A, US 74466A, US-A-74466, US74466 A, US74466A
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 74466 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

2 z. W172; (2 u ge fafjager.

Jf 74%6 212mm 2795. //,/565.

Fly. 5.

Letters Patent No. 74,466, dated l 'ebz'uary 11, 1868;


flit: seam terms: it in time Wists fltittti an making part of the time.



' Be it known that I, WILLIAM E. WRITING, of the city andcouuty of Providence, it the State of Rhode- Island, have invented a new and useful Improvement'in a Gauge to be Used in Boring; andI do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of the specification, in which- Figure 1 is a perspective view of my invention drawn out. Figure 2 is a section showing an anger attached. Figure 3 represents my invention 'when closed. '7 Figure 4 is an end view, showing the set'screws used in fastening.

In the accompanying drawings, A, .B, and O, fig. 1, are three tubes, made to slideone within the other, forming an anger or bit-gaugeI These tubes have openings at their sides for the purposeof freeing the chips when in use. A and'B are provided with two slots, made lengthwise, one side of each rslot being plain, the

opposite sides having notches, to be used in setting to any desired length, byQmeans of pins,

asshown in. fig. '1.

I These pins are made to fit the notches, and when turned in,. either 'preventsthe gauge from olosing'or opening when in use. D, fig. 1, is a ring, fastened or cast to the upper end of A,-and made a suitable thioknessfon set-screws to fasten to an anger or hit, as shown in figs. 2 and 4. E is a flange, end of O. This flange is used as a stop to prevent the anger or hit from cutting too deep, bringing up against the wood.

To use my invention, the flange E s by turning .the auger until the under surface of flange or bit. This, end of gauge is then fastened means of set-s in their proper notches, the opposite end of gauge at D can be fastened to opposite end of a screws or otherwise. It is then ready fornse. v

The advantages of my invention are, it can be a capable of fitting difierent sizes combined in one gauge, thereby saving the expense of ma size anger or hit. I l

I do not claim fitting'a piece of Inetal or wood to an anger or bit for a guage, but

What I do claim, and desire to secure by Letters Patent of the United States, is



fastened or cast to the lower theunder surface hould be set-the desired distance on theauger or bit, which can be done .13 is the desired distance from the cutting-end of anger crews, as shown in fig. 2; The pins being-turned ug'er or bit'by setjusted to an anger or bit'tc bore any desired depth, and

king a gauge for each.

The tubes A and O, in combination with the ring D and flange E, when constructed and arranged substantially asset forth and for the purpose specified.


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5080535 *Jul 6, 1990Jan 14, 1992Yukio HiranoDrill chips removing device
US6162226 *Sep 25, 1998Dec 19, 2000Depuy Orthopaedics, Inc.Long bone reamer with depth stop indicator
US6514258 *Aug 13, 1999Feb 4, 2003Implant Innovations, Inc.Penetration limiting stop elements for a drill bit used for bone tissue
US7261499 *Nov 11, 2004Aug 28, 2007The Boeing CompanyAdjustable drill microstop with multiple offset depth settings
US7695279May 29, 2007Apr 13, 2010Straumann Holding AgDrill stop sleeve for a dental drill, dental drill device with a drill stop sleeve, and set containing several drill stop sleeves
US8480682 *Aug 28, 2009Jul 9, 2013Zimmer Dental, Inc.Device for limiting the drilling depth of a drill
US20110054483 *Aug 28, 2009Mar 3, 2011Zimmer Dental, Inc.Device for limiting the drilling depth of a drill
EP1867297A1 *Jun 16, 2006Dec 19, 2007Straumann Holding AGDrilling stop guide for a dental drill, dental drill with drilling stop guide and set containing several drilling stop guides
Cooperative ClassificationB23B49/005