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 numberUS1576800 A
Publication typeGrant
Publication dateMar 16, 1926
Filing dateNov 21, 1923
Priority dateNov 21, 1923
Publication numberUS 1576800 A, US 1576800A, US-A-1576800, US1576800 A, US1576800A
InventorsHenry Tibony
Original AssigneeHenry Tibony
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Combination protractor and compass
US 1576800 A
Abstract  available in
Images(1)
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

March 16 1926. 1 1,576,800

H. TlBoNY COHBINATION PROTRAGTORy AND COMPASS Filed Nov. 2l. 1923 INVENTOR MMA r a ATroRNEY Patented Mar. 16, 1926.

PATENT OFFICE.

HENRY TIBONY, 0F NEW YORK. N. Y. Y

COMBINATION PROTRACTOR AND COMPASS.

Application led November 21, 1923. Serial No. 676,078;

To all whom t may concer/n:

Be it known that I, HENRY I1BoNY, a citizen of the United States, residing at New York city, in the county and State of New York, have invented a new and useful Improvement in a Combination Protractor and Compass, of' which the following is a specifcation.

This invention relates to improvements in a combination protractor and compass, intended for the use of' workers in w-ood or steel, and has for its special object the providing of an instrument which can be accurately and quickly adjusted to any angle or circle desired, and also used in all kinds of shop and drafting work. As is obvious the construction is simple and econoniical and simple to handle with eiciency. Y

These objects are attained by the device shown in the drawings herewith in which z- Fig. 1 is a plan view of my device.

Fig. 2- is a longitudinal sectional view with part of the blade in elevation.

Fig. 3 is an edge view looking from the f top oi Fig. 1.

As shown in the drawings my device consists of a plate 5b, with a rectangular fiange 6b slightly cut away at 15 to provide clearance for the thumb screw 7b by which the blade 8b is pivotally connected to the said plate. The end of the blade 8", which rests upon the plate 5b is tapered ofi' to form afingerlike member adapted to indicate upon the graduated scale of the plate the precise angle at which the blade is disposed toward the plate.

The blade is alsol provided with a longitudinal slot 13 which terminates at its outer end in an enlarged aperture, through which the sli'dable index member 14 may be introduced so that it may travel along the said slot. This member 14 also contains an aperture through which a pencil point or other marker may be inserted, to serve, if' desired, in conjunction with the lower extremity of the screw 7b, as a convenient pair of dividers. The member 14 is made in two parts, the upper being` a knurled nut and the lower a stud with a flange with an opening through the centre through which the index point projects, the upper end of the ystud being threaded for engagement with the knurled nut. The said tapered lowered extremity 11 of the screw 7b could also be utilized to position the center of acircle of which the circumference could be drawn by the marker inserted through the aperture in the slidableA index member 14.

As shown in Figs. 2 and 3 the thumb nut and the pin may be formed separately the lower end 11 of the latter being tapered and the upper end being threaded for engagement with the said thumb nut.,

I claim 2- In a universal gauge; a semi-circular plate having a substantially rectangular fia-nge along the straight edge thereof and the central portion of the plate being depressed below the upper face of the marginal portion;

a blade having a free end, a finger end, a

graduated scale, and a longitudinal slot terminating in an enlarged aperture; an index member slidablyimounted in the said slot` and provided with an opening adapted to receive marking means; and means for pivotally attaching the said blade to the said plate comprising a pin having a tapered lower extremity and a threaded top portion, and a threaded thumb nut adapted to engage with the said top portion of the said pin.

HENRY TIBONY.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2786274 *Oct 19, 1955Mar 26, 1957 early
US2900726 *Feb 27, 1953Aug 25, 1959Hentz Karl JDevices for use in making permanent layout impressions
US5183373 *Oct 18, 1991Feb 2, 1993The Floyd And Gilbert CompanyCircle marking and cutting guide template
US5426859 *Dec 6, 1993Jun 27, 1995Fiskars, Inc.Measuring and drawing instrument
US5501019 *Mar 14, 1995Mar 26, 1996Fiskars Inc.Measuring and drawing instrument
US5802942 *Oct 10, 1995Sep 8, 1998Fiskars Inc.Paper trimmer
US6457247 *Jul 12, 2001Oct 1, 2002Youth Toy Enterprise Co., Ltd.Protractor with an auxiliary ruler
US6606796Feb 2, 2001Aug 19, 2003Safe-T Products, Inc.Drawing tool
US7383635Jan 23, 2007Jun 10, 2008Learning Resources, Inc.Multipurpose drawing tool
US7464476 *Jan 7, 2008Dec 16, 2008Chi-Minh LeProfessional compass rulers
Classifications
U.S. Classification33/495, 33/27.3
International ClassificationB43L7/00, B43L7/12
Cooperative ClassificationB43L7/12
European ClassificationB43L7/12