US2050057A - Template - Google Patents

Description

Aug. 4, 1936.

wir'.

FFEL

TEMPLATE Filed May 17' 1935 gf'hhw" 4. l l 1 i l |210 1 l 1 l l l l l 'la 1 1 l Mini@ 2 Sheets-Shea?l l INVENTQR- Aug, 4, 1936 A. w. KEUFFEL TEMPLATE Filed May 17, 1935 2 Sheets-Sheet 2 INVENTOR ADOLF W hEl/FFEL E1Y(.Q`

.00.00.9.09 '.Qomnuueoonaoccsoa NGE Q ?atented ug. 4, 1936 UNITED l STATES PATENT OFFICE TEMILATE Application May 17, 1933, Serial No. 671,463

6 Claims. (Cl. 33-23) This invention relatespt'o scribing devices of the kind in which a Writing instrument is carried by a body member and isdirected over the surface to be written upon by a tracer pin movable in character grooves formed in a template and by a tail pin movable. in a groove parallel with the line of lettering.

- Devices of the character described have heretofore been awkward to use, limited in their application and complicated in design to counteract inherent defects.

One object of the present invention is an lmproved template for use with a scribing device of the character described in which the character grooves are easily visible. Accordingly, the character grooves are of a contrasting color from that of the template.

Another object of the invention is a template wherein the contrasting colors are permanent and not subject to wear under normal conditions of use.

It is also an object of the invention to provide a template by which extreme accuracy of inscribed character formation may be attained.

A further object of the invention is a template by which the centering oi the inscription may be readily effected on the writing surface.

The invention also seeks ready means of positioning the template whereby the characters may be quickly inscribed in the desired sequence.

It is a further obj ect of the invention to provide a scribing device which is practical from the standpoint of ease and accuracy of manufacture and use;

These and other objects of the invention and the means for their attainment will be more apparent from the following detailed description taken in connection with the accompanying drawings illustrating a preferred embodiment and in Figure 1y is a view showing the scribing device of this invention and its use Figure 2 is a view showing a template in plan;

Figure 3 is a fragmentary view on an enlarged scale showing details of the template;

Figure 4 is a vertical sectional view taken on the line 4-4 of Figure 3 looking in the direction of the arrows:

Figure 5 is a fragmentary sectional view of the template and character groove therein showing the tracer pin in a character groove; and

Figure 6 is a view similar to Figure 5 but showing a modiiied tracer pin and character groove;

Referring rst to Figure 1, a writing surface,

such as a sheet of drawing paper or tracing cloth,

is indicated at 9 carried upon, say, a drawing board I0. A scribing device indicated generally at II is adapted to inscribe, by means of a pen I2, or other writing instrument, letters, numerals, diagrams or other characters I3 on the wrlt- 6 ing surface 9 byvbeing guided, as by the movement of a tracer pin I4, in character grooves I5 formed in a template I6. The 'scribing device is also controlled, in its movements by a tail pin I1 positioned in a horizontal groove I8, also in 10 the template I6. This groove I8 is parallel to the line of lettering. The groove I 8 is maintained in parallel relationship with the line of lettering, say, by being guided and positioned by a straight edge, such as the T-square I9. 15

The scribing device, in the illustrated embodinient, comprises a body member, Figure l, elongated and relatively narrow in Width for approximately half its length, as illustrated at 22. From this point, the body member increases progressive- 20 1y in width toward the opposite end, as at 23. At the latter end, the body member is bifurcated or formed with two arms 24 and 25 spaced apart where they join the body and diverging progressively. 25

In Figure 1, the scribing device occupies generally the position it assumes when used to in.. scribe characters.

The near arm 24 is provided, preferably, with a hardened tracer pin I4 xed therein. 30

The end of the tracer pin I4 is received in the maracter grooves I5 of the template I 6. These character grooves I5 are formed in the template qIt in the outline of the Writing instrument. The inclination and proportions of the character 35 grooves bear a definite relationship to the angula;` relation of the lines joining, respectively, the writing instrument and tracer pin with the tail pin and the desired inclination of the inscribed characters I3. 40

Proximate the arms 24, 25, that portion 23 of the body which is of progressively increasing width, is also of increased thickness, the vertical sides 3l being plane and diverging for convenient grasp between, say, the thumb and middle nger, 45 the index nger resting on the upper surface which is conveniently slightly concave, in a transverse direction.

The tail pin I'I slides freely in the horizontal groove I8 of the template I6 as the tracer pin 50 pin I4 follows, in the character groove, the outline of the character being inscribed. To retain the tail pin II in the groove I8, the extremity of the end 22 is weighted. As shown, a plug or Weight 38 of some heavy material, such as lead, 55

; writing surface.

is carried by the end. By means of the weighted end, the seribing device may be moved back and forth along the template and rotated through appreciable angles about the axis of the tail pin Il without danger of the tail pin leaving the horiv zontal groove I8.

It is proposed, with the scribing device of this invention, to inscribe characters of varying heights and line thicknesses. While any writing instrument, a stylus, a graphite or crayon pencil, for instance, may be used, there is illustrated, for convenience, a pen of the kind disclosed in Patent Number 1,528,142 dated March 3, 1925, having a tubular ink receiving reservoir and tubular ink delivering nozzle and a rod like cleaning device disposed within the tubular portion of a smaller diameter at its lower end than the interior diameter of the nozzle, whereby ink may now outwardly around the lower end of the cleaning device. In practice, the end of the cleaning device rests on the writing surface 9 and the lower edge of the delivery tube is slightly above the surface 9. To retain the parts in such relative position, a raising screw 49 is carried with the remote arm 25.

The arm is provided with at least one and preferably two or more threaded apertures 41 at different distances from the pen I2. The raising screw comprises a threaded shank for reception in the aperture 4`I, and a blunt bearing end which rests and Slides over the surface 9. It has a head, conveniently knurled, by which the shank is turned in the threaded aperture and the elevation of the arm 25 adjusted above the surface 9, and thus the mouth of the pens delivery nozzle is maintained at the .proper distance above the writing surface 9. When the raising screw 49 is in adjusted position, it may be locked in that position by the lock nut 50.

To receive the writing instrument I2, the extremity of the remote arm 25 is apertured and on the median line the arm 25 is slotted with a relatively wide slot from the end inwardly on a diameter of the aperture, the slot terminating in an aperture 55. The bifurcated end of the arm 25 may then be drawn together by a clamping screw 56 to draw the sides tightly against a writing instrument I2 in the writing instrument aperture and hold it in position.

When a pen, adapted to form thin lines, is used, the raising screw is placed in the aperture nearest thereto in order that the raising screw may be as close to the pen as possible for accurately positioning the pen with respect to the If, however, a letter is being formed of relatively great width, the raising screw would wipe into the letter and cause a blot. In order to avoid this, the raising screw is moved into the more remote aperture and thus the raising screw may be adjusted both vertically and laterally with respect to the writing instrument.

So much of the scribing device as has been described forms the subject matter of copending applications, Serial No. 671,464 filed May 17, 1933 and Serial No. 671,465 led May 17, 1933, respectively.

The template I6 of this invention comprises an elongated rectangular rule like member 60 which is also rectangular in cross-section. It is preferably accurately made so that at least its side edge 62 is a straight edge to cooperate with a straight edge I9 on the drawing board. 'Ihe groove I 8 is, of course, parallel to the edge 62 so that the lettering may be formed on a horizontal line on the drawing or other writing surface 9.

The template I6 affords a contrast between the character grooves I 5 and the surface or background 63. The character grooves, and in fact all the grooves, are preferably black, or a dark color, while the face 63 of the template is white. or a light color. In manufacture, a laminated construction is proposed. The body or inner portion 64 is preferably of black Celluloid with a relatively thin facing strip 66, 61 secured to the upper and lower faces. Conveniently, these facing pieces are cemented to the inner body and in practice the body 64, is, say, .100" thick, while the facing strips 66, 61 are .010" thick.

The grooves, both character and tail pin grooves, are advantageously engraved on the upper surface, the engraving tool cutting through the white upper facing strip 66 into the black body 64 so that the grooves show clearly and distinctly in black against a white background 63.

In making the template of celluloid, there are the added advantages that the template, and its component parts before assembly, remain dat and straight. The edges of the grooves are cleanly cut and smooth without additional treatment. They hold their shape and do not wear in use so that clear cut, even and exact lettering is always produced. Any ink or dirt winch accumulates can be readily washed on.

The bottom of the grooves in every instance is slightly wider than the Width of the end of the pin tting therein to insure freedom of movement. While the ideal shape of groove is that shown in Figure 6 with the side walls 68 vertical and the surface 69 of the end of the pin I4 or II parallel thereto, it has been found advantageous in manufacture to incline the walls 'I0 slightly toward the bottom of the groove as shown in Figure 5, and form the end of a frusto-conical pin I4 or I1 which moves therein on a taper of a slightly less angle to the vertical. In practice, the taper of the pin is at an angle of say 5 to the vertical while the angles of the walls are, say, 71/2 to the vertical. Such relation hasbeen found satisfactory in use.

It will be noticed that in this construction, the end of the pin is in contact at all times with the flat bottom of the engraving cut and that the sides of the engraving cut act as end stops only to guide the pin. A slight side play of at least .001" is necessary to insure the smooth motion when the tracer pin is run in the groove of a character.

The scale I2 along the lower or straight edge of the template is intended to aid in locating or centering a line of lettering. Each space I3 on the scale 'I2 represents the average distance from center to center, between letters or other characters I5. The center line or mark on the scale is numbered zero (0) and equal divisions on opposite sides are appropriately numbered, as shown, from the center in each direction.

The function of the scale may best be understood by describing its usev in a specific problem. Assuming that it is desired to center the words BUCHANAN STREET, the scale would aid as follows: 'I'he two words contain fourteen normal letters, with a space between the words equal to the width of a normal letter, making a total of fifteen spaces. The center of the inscription is, therefore, half this distance, at a distance of 71/2 spaces from the end. The zero on the scale is, therefore, brought to a point on which the line of lettering is to be centered and a mark is made on the writing surface 9 seven and one half spaces to the left. The template is then moved so that the pen will be directly over this mark when the tracer pin I4 is in and at the base of the vertical leg of the letter B, By starting letter B in this position and lettering the words BUCHANAN STREET with a normal spacing between characters, the distance between the first letter B and the last letter T will be uniformly spaced from the center of the group.

Referring to Figures 2, 3 and 4, a dot 'Il is shown as engraved above and in line with the left extremity of each character and is used as an aid in determining the spacing of a letter about to be made from the one just completed. That is, the tracer pin Il of the scriber is set into the dot 'M of a letter next to be inscribed and then by glancing at the pen the spacing from the letter which has just been completed can be judged quite accurately and the template moved by means of the tracer pin to the desired position. The tracer pin is then removed from the dot without in the meantime moving the template and the pin is then inserted in the character groove of the letter which is then scribed.

It will thus be seen that a template as a component element of a scribing device has been provided which is convenient to use, quickly manipulated, durable and accurate in guiding a scriber in the formation of various and sundry characters, that is, letters, numerals, designs, etc. It is capable of having formed in its surface character grooves of a wide variety of shapes and widths.

Various modications will occur to those skilled in the art in the composition, configuration and disposition of the component elements going to make up the invention as a whole as well as in the substitution therein of features performing equivalent functions and no limitation is intended by the phraseology of the foregoing description or illustrations in the annexed drawings.

What is claimed iszl. In a scribing device, a template for use with a scriber and formed with a groove to receive a scriber tail pin and character grooves to receive a scriber tracer pin, and comprising a composite laminated body whereof one lamination is of a color contrasting with another lamination and formed with grooves passing through the last named lamination and penetrating said nrst named lamination.

2. In a scribing device, a template for use with a scriber and formed with a groove to receive a scriber tail pin and character grooves to receive a scriber tracer pin, and comprising an inner lamination of a dark color and an outer lamina.- tion on each face thereof of a light color and grooves formed in one outer lamination and penetrating said inner lamination.

3. In a scribing device, a template for use with a scriber and formed with a groove to receive a scriber tail pin and character grooves to receive a scriber tracer pin having a flat end and the surface proximate thereto defined by a line in a plane including the axis and revolving thereabout. and whereof the bottom of the groove is flat, the bottom of. the character grooves being slightly wider than the end of the tracer pin, the sides of the grooves being planar.

4. In a scribing device, a template for use with a scriber and formed with a groove to receive a scriber tail pin and character grooves to receive a scriber tracer pin having a frusto-conical end, the bottom of a groove being slightly wider than the end of a pin and the walls of the groove lying at an angle to the bottom greater than the angle of the surface of the end of the pin.

5. In a scribing device, a template for use with a scriber and formed with a groove to receive a scriber tail pin and character grooves to receive a scriber tracer pin, and comprising a composite laminated body whereof an inner lamination is of a color contrasting with the outer lamination and formed with a plurality of character grooves passing through the outer lamination and penetrating said inner lamination and a scale along one edge whereof the graduations are spaced a distance substantially equal to the average distance from center to center of the characters to be formed and having its zero graduation in the center of the scale.

6. In a scribing device, a template for use with a scriber and formed with a groove to receive a scriber tail pin and character grooves to receive a scriber tracer pin, and a plurality of substantially circular recesses disposed above the line of the character groove's, respectively, for the reception of the tracer pin, each of said recesses being so disposed with respect to a character that, with the tracer pin therein, and when the writing instrument is over a given scribed char- 'B acter, the corresponding character groove is positioned to receive the tracer pin in the scribing of said character.

ADOLF W. UUFFEL.

Images