US773016A - Marker for surveyors' tapes. - Google Patents

Description

No. 773,016. PATENTBD 00T. 2 5, 1904. y

1 W. L. E. KEUFFEL. MARKER POR SURVBYORS TAPES.

l APPLIATION FILED SEPT. 24, 1902.

NO MODEL.

v UNITED STATES Patented October 25, 1904.

PATENT @Fries WILLIE L. E. KEUFFEL, OF HOBOKEN, NEW JERSEY, ASSIGNOR TO THE KEUFFEL & ESSER COMPANY, OF HOBOKEN, NEINT JERSEY, COR- PORATION OF NEW JERSEY.

MARKER FOR SURVEYORS TAPES.

SPECIFICATION .forming part of Letters Patent No. 773,016, dated October 25, 1904.

Application filed September 24, 1902. Serial No. 124,625. (Nomodel.)

To all whowb t may concern:

Be it known that I, WILLIE L. E. KEUFFEL,

a citizen of the United States, and a resident of the city of Hoboken, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Markers 'for Surveyors Tapes, of which the following is a specification.

My invention relates to surveyors tapes;

IO and it consists of providing the same with a marker which affords a sure and efficient v means of accurately indicating a selected point in the graduations.

In the drawings; Figure lisa plan viewof a portion of a form of surveyors tape now commonly employed in the trade. Fig. 2 is a similar view of my improved tape. Fig. .3 is an enlarged transverse sectional view across one .of the grooves e and rivet Z1 in the construction shown Yin Fig. 2. Fig. 4 is an enlarged detail plan view ofv the marker extended before it is attached to the tape. Fig. 5 is a perspective view illustrating one mode of using my improved marker, and Fig. 6 is an enlarged detail plan view of a modified form thereof. A,

In the drawings, a is the body of the tape, which may be made of steel or other suitabl material.

' Z) b are rivets secured to the body of the tape at certain intervals and which constitute one of the means by which it is graduated, y and c is the marker by which prime graduations intermediate ofv the other rivets are indicated. In the old form of'tape (illustrated in Fig. 1) this marker is commonly made of a flat plate of metal having square corners and which is folded'over and riveted to the body of the tape, as shown. In using thisold form of tape an error has frequently arisen, because it is difficult to Vplace the central point of the marker onthe upper edge of the: tape alongside of the plumb -`line or similar startingpoint for measurement precisely coincident with the central plane passing through the graduating-rivet and transverse to the general axial line ofthe tape. If the tape itself were notched, so as to indicate more precisely the point of graduation coincident with the center of the marker, it would weaken the tape.

My improved form of marker, which provides a simple and efficient means of marking this point, obviates all of the disadvantages referred to. rIhe square corners of the old vmarker are also apt to catch in grass or'on the 55 edges of stones and the line.

My improved markers are made in the usual manner out of one plate of metal, as shown in Fig. 1:;'but a central aperture is punched at d, as indicated, in addition to the apertures CZ provided for the insertion of the rivets, and recessess d are cut away. The aperture is formed ign the line intersected by the fold, so that when the improved form of marker thus made is folded over the tape, as shown in Fig. 2, the aperture Z forms in the folded edge of the marker a transverse groove e, which is plainly observed or can be easily felt by running said folded finger along the edge, and the tape itself is not weakened in any manner, and the marker is not liable to catch in contiguous objects. The recesses d" form a smooth rounded edge e for the marker on each side. y

In using my device the plumb-line can be `heldagainst the transverse groove c in the, "manner illustrated in'Fig. 5 and which will be readily understood, thus aording a certain means o f knowing the starting-point from which the measurement is taken, the 8O notch preventing the plumb-cord from slipping.

In Fig. 6 I have illustrated a modified form of my device in which the medial line of the marker is represented by a long groove e, and the fastening-rivets are secured on each side of the same. In making this form of marker, of course four holes instead of two would have to be punched inthe metal plate to admit o f the insertion of the four rivets b. By means of this construction the plumb-cord is prevented from slipping also.

Having described my invention, what I claim as new isl. A marker for a surveyors tape or the like, consisting of a plate folded to encircle one edge of the tape and secured to said tape, l plate being' formed within its body wit said plate having its closed side provided with rounded corners and externally substantially parallel to the line of the tape and its said closed sidegrooved in a plane coincident with one of the prinie graduetions of the tape.

2. The combination with a snrveyors tape or the like, of a marker consisting of n platte folded over and secured to the tapeiand heving its closed side formed to provide :t groove therein, substantially es described and for the purpose set forth.

3. The herein-described marker for surveyors tapes and the like, consisting of a plate folded between its sides to inclose an edge ot' said tape, said marker having a groove in its folded edge, substantially as described and for the purposes speciiied.

4. The herein-described marker for surveyors tapes and the like, comprising a plate folded to inolose an edge of the tape, the seid :in aperture and its seid fold being on :i line which extends through sitid :iportn re, whereby n groove is formed in the closed edge ol the marker.

The herein-described ninrkcr Ylor surveyors tapes and the like, comprising :i plate huying :in taperture in its body :ind recesses in its edges at opposite sides of szlid nperturc, the said plate being folded intermediate oll its sides and on :t lino which extends through said aperture und recesses, substantially :is described and for the purposes speciied.

fitness iny hand this 18th day of September, 1902,21t the city of New York,in the county and Stato of New York.

lVlLLlE L. E. KEUFFEL.

lVitnesscs:

HERMAN H. S'rUTZ, O'r'ro FREUND.

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