US1838383A - Sign painter's marker - Google Patents

Description

- SIGN PAINTERS MARKER Filed Oct. 20, 1950 (Ittornegs' Patented Dec. 29, 1931 PATENT OFFICE CLARENCE E. FRIDOLPH, F TOPEKA, KANSAS V SIGN PAINTERS MARKER Application filed October 20, 1930. Serial No. 489,909.

This invention relates to markers and more especially to devices to be pressed against fiat objects for producing thereon straight or curved line marks. A. further object is to produce a marker of still resilient material capable of being sprung sidewise from straight to curved form, and provided at one longitudinal edge with compressible material-such as felt-adapted to be treated with chalk or equivalent material to leave the impression of such chalked edge upon a flat wood, glass or other object, or upon a card or fabric, as a guide for a sign or card writer, when about to print or paint a word or the like upon the object.

A still further object is to provide a device possessing the property of defining either a straight line or curved line on arcs struck from different centers and of leaving impres- 'sions of such lines on flat objects when pressed thereagainst, and also leaving linear measurement markings whereby the operator, knowing the width of the object and the permissible length of the line to be made, can

instantly spring the marker enough to transfer to the object, an arcuate line of the degree of curvature required to fall within the extremities of the line.

With the above-mentioned objects in view,

the invention will be found to consist in its preferred, and perhaps cheapest, form of the novel combination of a wood ruler equipped.

with a longitudinal edging of felt to be chalked so that when pressed firmly against an object, such as a wood, glass or metal panel, or upon a card or fabric, it will leave its impression as a direction guide for the person who is to paint names or other matter upon the object; and in order that it may be fully understood, reference is herewith made to the accompanying drawings, in which: v

Figure 1 is an elevational view of a device embodying the invention, the figure being broken for foreshortening purposes and. to more clearly disclose the construction.

Figure 2 is a fragmentary perspective view of a modified construction.

Figure 3 is an end View of a modified construotion.

Figure 4 is an end view of a second modified construction. I v

Figure 5 is a fragmentary perspective view of a door bearing arcuate chalked or equivalent lines, and also shows the device bowed upwardly and applied operatively to the door for the production of upwardly bowed parallel guide lines, the lowerpair of lines being bowed downwardlyon different arcs indicat ing a reversed bowing ofthe device for their production, and the intermediate straight lines indicating the use of the device in normal condition;

Figure 6 is a faceview on a reducedscale of a modified construction for the marking of linear measurements.

Referring now to the detail construction, 1 indicates a fiat straight-edged resilient device of rule form. It is preferably of wood, but may be of celluloid or other composition possessing resiliency-so that it may be sprung to different arcs and if made of hard or relatively hard material, it will have an edging of compressible material of any character, such as felt, cord or the like. It can be made of composition material of any character, as illustrated in Figure 3, which is resilient, provided one edge is compressible.

In the preferred form, one longitudinal edge is providedwith a groove 2, and the com- 8 pressible strip 3 is cemented or otherwise suitably secured therein. i

,In Figure 3, the device 1, has a softened edge 4, and in Figure-4, one edge has secured thereon, a metal clip. 5, having a groove 6 wherein is suitably secured by crimping pressure or cement, the compressible edging strip 3. 7

When one desires to produce a straight line on a door or the like, the compressible edge is rubbed with a piece of chalk or crayon ofsuitable color, and the edge thus treated is pressed firmly upon the door to mark the same. A second marking will, in cooperation with the first, define the height of the letters to be painted or printed.

If it is desired to produce anupwardly bowed name, the edge is chalked and then the device is sprung upwardto the desired degree, and while so bowed itispressed against the object, as illustrated in Figure 5. By reversely bowing the device to bow it downwardly, corresponding lines can be quickly produced, and it will be apparent that the curved lines thus produced will always be symmetrical and the best degree of curvature instantly determined for attractiveness 1n appearance and accommodation of available working space.

The device bears linear measurement markings as shown so as to be available for general measurement purposes and also, when the device is bowed, to instantly show the length of the bowed line and thus enable the user to readily divide the length of the l ne, especially when curved, into appropriate spaces for the number of letters to fall within such length.

From the above description it will be apparent that the use of the device will materially shorten the time now ordinarily devoted to striking curves with a chalk or crayon attached to a cord, as by bowing the device and holding it near a door for instance, it can be determined just What curvature and its relative position on the door is best, thus avoiding the common practice of striking lines and erasing them if apparently of Wrong curvature, or position, and repeating such treatment one or more times, as commonly practiced.

In the construction shown in Figure 6, the compressible edging strip 11 is formed with slight kerfs or notches 12 in its marking edge, spaced at uniform distances apart through the length of the strip. With this construction, a line will be automatically divided into spaced units so that the letter positions and the like may be readily determined without the necessity of separate measuring operations.

The embodiment of the device may be obviously Varied from those disclosed without departlng from the principle of construction involved or the spirit and scope of the appended claims.

1. A thin resilient strip inherently straight but susceptible of being sprung sidewise to an arc of a circle, one longitudinal edge of the strip being compressible edgewise when forcibly applied to a flat object to leave an impression or mark upon the latter conforming to the condition of the strip.

2. A thin resilient strip inherently straight but susceptible of being sprung sidewise to define an arc of a circle and provided on its side with linear measurement graduation marks, one longitudinal edge of the strip being compressible edgewise when forcibly applied to a flat object to leave an impression or mark upon the latter conforming to the condition of the strip.

3. A thin resilient strip of relatively hard Iresilient material, inherently straight but susceptible of being sprung sidewise to define an arc of a circle, one longitudinal edge of the strip being grooved, and compressible material secured within said groove and protruding therefrom.

4. A thin resilient strip of relatively hard resilient material, inherently straight but susceptible of being sprung sidewise to define an arc of a circle, a spring metal edge piece secured to the strip and projecting beyond on longitudinal edge thereof, and compressible material secured to said metal edge piece and projecting beyond the margin of said projecting portion of the edge piece.

In testimony whereof I afliX my signature.

CLARENCE E. FRIDOLPH.

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