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Publication numberUS763076 A
Publication typeGrant
Publication dateJun 21, 1904
Filing dateApr 24, 1902
Priority dateApr 24, 1902
Publication numberUS 763076 A, US 763076A, US-A-763076, US763076 A, US763076A
InventorsFrank Spalding
Original AssigneeBrown & Sharpe Mfg
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 763076 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)


No. 763,976;V




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' UNITED STATES Patented June 21, 1904. I.




SPECIFICATION forming .part of Letters Patent No. 763,076, dated June 21,' 1904-..

Application filed April 24, 1902.

have designed a depth-gage in which the measuring rod or bar is supported by a springpressed sleeve and is'made to bear against the surface of the hole or groove, so as to insure a firm bearing and secure a more accurate measurement. In the preferred form the graduated measuring-bar is rotatably supported in the sleeve and may be adjusted to secure the more ready resiing of the measurement.

Figure 1 is a side View of my improved depth-gage. Fig. 2 is a transverse sectional View on an enlarged scale. Fig. 3 is a plan view anda side View of the disk by which the measuring-bar is secured when the measure has been taken. Fig. 4 is a perspective view of the washer through which the measuringbar slides. Fig. 5 is a plan view and a side view of the sliding sleeve. Fig. 6 is a plan and side view of a split ring. Fig. 7 is a side and plan view of the socket-piece controlling the end of the measuring-rod.

In the drawings, a indicates the base-plate.

From the lower straight edge e the depths of holes or-grooves are measured. From the back of the base-plate and at right angles to the straight edge e extends the tubular post b, the upper screw-threaded end b' of .which is provided with the internally-screw-threaded cap b2, by which the conical clamping-block b may be drawn into the conical end of the post to firmly clamp the measuring-rod c.

The neck Zi* is contracted to form an annular' shoulder against which the washer bl is held by the spiral spring b, the opposite end of which bears on the shoulder 57 of the sleeve Serial No. 104,487. (No model.)

bs, through which the measuring-rode extends and with which the same vis in closefrictional contact. The lower end of the sleeve 68 is shown cupped and rests on the split. ring b9,

by which the plug 610, resting on the annular` shoulder e2, is held in place.

In the preferred form, as shown in the drawings, I use a flat graduated measuring-rod c. This rod slides with an easy sliding lit in the conical block 3, the washerb, and the plug b1, but is in frictional contact with the sleeve bs, which forms a rotatable spring-pressed support. used, the measuring-rod is preferably drawn outsomewhat farther than the depth of the groove or hole to be measured would require, so that the end of the measuring-rod c, upon coming in contact with the bottom of the hole, will have a tendency tollift the sleeve bs upward against the pressure of the spiral spring b. The frictional resistance of themeasuringrod c on the sleeve 72S acts to hold' the end of the measuring-rod firmly in vcontact with the When now the depth-gage is to be end of the hole or the surface of the groove -to be measured. The measuring-rod may vnow be securely clamped by the conical block 3, preferably while the action of the coiled spring on the sleeve bs is still exerted and the end of the measuring-rod is pressed against the depressed surface.

The measuring-rod c may be rotatedv and placed with its flat side at any desired angle to facilitate the reading of the measurement or to insure the firm contact with the surface to be measured. `4

In practice I find that by the use of the spring-pressed sleeve the taking of accurate base and a tubular post, of the measuringrod, the rotatable spring-actuated support bs, for the measuring-rod, andineans for clamping the measuring-rod, as described.

. 4. In adcpth-gagc, the combination with the base and a tubular post, of the iiat measuringrod, the rotatable clamp b3, the cap b2, the rotatable support the spiral spring bearing on the support, and the rotatable plug 510, substantially as described.

5. In adepth-gage, the combination with the base and the tubular post, of a sleeve forming a rotatable support for the measuring-rod, a measuringrod extending longitudinally through the sleeve and in frictional contact therewith, a coiled spring acting on the sleeve,

and means for clamping the measuring-rod in the adjusted position, as described.

6. A depth-gage having a Hat measuringrod rotatably supported on a longitudinallyyielding spring-actuated support adapted to rotate with the measuring-rod, and means for securing the measuring-rod in the adjusted position, as described. l

In testimony vvhereotl I have signed my name to this specification in the presence of two subscribing Witnesses.


fitnessesz J. A. MILLER, Jr., B. S.l WEBSTER.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2550508 *Jun 7, 1949Apr 24, 1951Seiberling Rubber CoTire gauge
US2654156 *Feb 29, 1952Oct 6, 1953Dill Mfg CoTire tread gauge
US2689408 *Oct 9, 1950Sep 21, 1954Cornell Roy CDepth gauge
US2758383 *Feb 3, 1953Aug 14, 1956Acme Ind CompanyChamfer gauge
US2789356 *Jan 11, 1954Apr 23, 1957Blanks Jr Richard HSpring loaded feeler gauge
US3460258 *Jun 22, 1967Aug 12, 1969Fenix & Scisson IncSingle position extensometer
US4517745 *May 2, 1983May 21, 1985Bruce L. Hare, Jr.Apparatus for measuring the shoulder of a drill pipe joint
US5034009 *Aug 22, 1989Jul 23, 1991Mouchel Jack A PInstrument for locating the proximal end of the urethra
US6994678 *Aug 23, 2004Feb 7, 2006Cervilenz, Inc.Devices and methods for cervix measurement
US8366640Nov 11, 2010Feb 5, 2013Cervilenz Inc.Devices and methods for cervix measurement
US8517960Jan 22, 2013Aug 27, 2013CervilLenz Inc.Devices and methods for cervix measurement
US8870794Jul 30, 2013Oct 28, 2014Cervilenz Inc.Devices and methods for cervix measurement
US9131875Oct 27, 2014Sep 15, 2015Cervilenz Inc.Devices and methods for cervix measurement
US20030105519 *Sep 4, 1998Jun 5, 2003Roland FasolArtificial chordae replacement
US20050027215 *Aug 23, 2004Feb 3, 2005Baxter-Jones Rosalyn P.Devices and methods for cervix measurement
US20060020230 *Sep 23, 2005Jan 26, 2006Cervilenz, Inc.Devices and methods for cervix measurement
US20080021350 *Jul 13, 2006Jan 24, 2008Bechtle Samuel JCervix Measurment Device with Disposable Tip
US20110118629 *Nov 11, 2010May 19, 2011Bauer Jonathan PDevices and methods for cervix measurement
EP1435837A1 *May 17, 2002Jul 14, 2004Cervilenz Inc.Devices and methods for cervix measurement
EP1435837A4 *May 17, 2002Mar 11, 2009Cervilenz IncDevices and methods for cervix measurement
EP2374410A1 *May 17, 2002Oct 12, 2011Cervilenz Inc.Device for cervix measurement
Cooperative ClassificationG01B3/28