US2543476A

US2543476A - Ruler

Info

Publication number: US2543476A
Application number: US163028A
Authority: US
Inventors: Thomas J Southern
Original assignee: Individual
Current assignee: Individual
Priority date: 1950-05-19
Filing date: 1950-05-19
Publication date: 1951-02-27
Anticipated expiration: 1968-02-27

Description

Feb. 27, 1951 T. J. SOUTHERNv RULER Filed May 19, 1950 mm 2 mw. Od l ,mw 09m# m WLIHUHM m, n w w m m L mm s ...m mm

Wzmwm 5,0m ATTORNEYS Patented Feb. 27, 1951 UNIED STATES PATENT OFFICE RULER Thomas J. "Southern, Great Kills, -N. Y.

Application May 19, 1950, Serial No. .163,028

3 Claims.

This invention relates to rulers a-nd more Darticularly to a ruler for use as a place marker -on a knitting or crocheting pattern or the instruction sheet therefor.

It is among the objects of lthe invention .tojprovide an improved ruler 'assembly that can be mounted on a knitting or crocheting pattern -or instruction sheet for locating various features in the pattern, determining the number of loops or threads per inch in various areas of the pattern and for similar purposes, which ruler includes an elongated body and an elongated resilient bar or clip extending along one side of the body to firmly clamp a pattern piece or instruction sheet between the clip and the body and hold the ruler in adjusted position on the pattern piece or instruction sheet.

Other objects and advantages will become apparent from a consideration of the following description and the appended claims in conjunction with the accompanying drawing wherein:

Figure l is a top -plan view of a ruler assembly illustrative of the invention;

Figure 2 is a side elevational view of the ruler assembly illustrated in Figure l;

Figure 3 is a transverse cross sectional View on the line 3 3 of Figure 2; and Y Figure 4 is a transverse cross sectional View on the line li-13 of Figure 2.

With continued reference to the drawing, the ruler assembly comprises an elongated ruler body Ill having two parallel and spaced apart straight edges i! and l2 and formed of a non-magnetic material such as wood, synthetic resin plastic or hard rubber, The body f has a longitudinally extending medially disposed groove i3 of rounded cross sectional shape in one side thereof and two scale bearing surfaces l@ and I5 which incline outwardly from the respectively adjacent sides of the groove i3 to the edges Il and l2, the surfaces lll and l 5 being beveled to bring the straight edges ll and I 2 to a featheredge condition. A scale of lineal measurement extends along each of the surfaces lll and l5 and a at face i6 is provided on the side of the body opposite the groove it and extends between the edges il and l2 and from one end of the body to the other. The ruler illustrated is a ten inch ruler having the two scales of lineal measurement running in opposite directions thereon with each scale divided into inches and fractions of an inch for enabling the user to determine the number of loops or threads per inch in a particular area of a knitting or crochet pattern or on an illustrated instruction sheet.

Cir

An elongated Vbar or clip 'Il of thin walled, magnetic material, suc-h as spring steel, is secured at Aone end to the body l;0 at one `end of the latter by suitable means such as the rivet f8, and extends longitudinally along the flat face 'l5 lof the body lil from one end of the body to the other. Adjacent the Yrivet lI8 the bar 'or clip l1 is provided with a rounded bow I9 which extends away from the adjacent ilat face of the body i and has a length of approximately one inch, this bow providing a freeway for a hem or selvedge on the edge of a pattern piece or a binding on one edge of an instruction sheet. At its opposite end the clip l 'i is curved away from the body l, as indicated at 20, to facilitate the insertion of a pattern piece or instruction sheet -between the clip and theruler body.

Near its end opposite that carrying the rivet I8 the ruler body is yprovided with a rectangular aperture 2l and a permanent magnet 22 is secured in this aperture with one polar end thereof substantially iiush with the at face IS of the ruler body. This magnet applies magnetic attraction to the free end of the bar or clip il to augment the clamping pressure 'between this bar and the ruler body due to the resiliency of the material of the bar.

After a pattern piece or instruction sheet has been inserted between the ruler body and the bar of the ruler assembly, the assembly may be adjusted to a desired position on the work piece or instruction sheet and will be held in such position of adjustment by the clamping force between the body it and the bar l?, this clamping force however permitting movement of the ruler assembly to a different location on the pattern piece or instruction sheet when desired.

The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiment is, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are, therefore, intended to be embraced therein.

What is claimed is:

l. A ruler assembly comprising an elongated ruler body having at least one scale of lineal measurement extending along one surface thereof and having a at face opposite the scale bearing surface, an elongated resilient bar secured at one end to said body at one end of the latter and extending longitudinally of said body along said flat face, said bar being formed of magnetic material and said body having an aperture therethrough near the other end thereof opening to said at face, and a permanent magnet secured in said aperture for applying magnetic attraction to the free end of said bar.

2. A ruler assembly comprising an elongated ruler body having at least one scale of lineal measurement extending along one surface thereof and having a flat face opposite the scale bearing surface, an elongated resilient bar secured at one end to said body at one end of the latter and extending longitudinally of said body along iiat face, said bar being formed of magnetic material and said body having an aperture therethrough near the other end thereof opening to said flat face, and a permanent magnet secured in said aperture for applying magnetic attraction to the free end of said bar, said bar having adjacent said one end thereof a portion bowed in a direction away from said body and having at its other end a portion curved in a direction away from said body to facilitate the insertion of a pattern piece or instruction sheet between said body and said bar.

3. A ruler assembly comprising an elongated ruler body having at least one scale of lineal measurement extending along one surface thereof and having a flat face opposite the scale bearing surface, an elongated resilient bar secured at one end to said body at one end of the latter and extending longitudinally of said body along said at face, said bar being formed of magnetic material and said body having an aperture therethrough near the other end thereof opening to said flat face, and a permanent magnet secured in said aperture for applying magnetic attraction to the free end of said bar, said bar having a length substantially equal to the length of said body and a width materially less than the width of said body and comprising a thin elongated strip of resilient magnetic material.

THOMAS J. SOUTHERN.

REFERENCES CITED The,l following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date '734,514 Clark July 28, 1903 2,288,688 Dubilier July 7, 1942