US1597520A - Method of making pencil barrels - Google Patents

Description

Au 24 192%. H 1,597,520 H. L. FISCHER METHOD OF MAKING-PENCIL BARREIJS Filed June 25, 1923 Patented Aug. 24, 1925,

entra n STATES MENT rrowaan L. nrscrznn, or sr. PAUL, MINNESOTA,ASSIG1\TOR T0 Bnown a'erennowi on ST. PAUL, MINNESOTA, .a conrone'rrciu or MINNESOTA.

METHOD OF MAKING PENCIL BARRELS Application filed June 25, 1923. Serial No. 647,594.

graved into the barrel either by machines made for that purpose or by hand engraving the pencil barrel or casing.

In my invention I provide a method for applying the design or pattern to the pencil casing 0r barrel in a manner so that it will simulate hand engraving, engine turning, or chasing by a method which is not so eX- pensive as the methods heretofore used.

A. feature of the invention is in swaging the tubing to a writing point after it has i been decorated by my means of transferring the design or pattern unto the barrel or casing so that the decoration will extend over the writing point unto that part of the barrel which forms the writing end and particularly over the part which is customarily engaged by the fingers of the person using the pencil in writing. By means of this method an economical means is provided for applying a decoration or pattern unto the pencil casing over the portion of the barrel where it is engaged by'the hand in writing, and this is a very desirable feature in metal barrel pencils, because it provides a better grip for the fingers to hold the pencil and prevents them from sliding off the tapered end while writing.

To more clearly illustrate my method of making the metal pencil barrels Ihave prd vided a drawing in which:

Figure 1 illustrates a perspective of the finished pencil barrel. e

Figure 2 illustrates a length of tubing used to make up the pencil barrel before my method has been applied to the same.

Figure 3 illustrates the tubing in the first step of my method of making the same.

Figure 4 is an enlarged detail of the forward writing end of the pencil barrel in finished form, a

Figure 5 is a section on line 55 of. Figure3. i

In carrying out mymethod the metal tubing which is to be used for making the pencil barrel or casing is of the desired dimensions, having a uniform cross section and vcontour throughout its length. This tubing is cut into the desired lengths such as A and is then passed through the chasing machine, engine turning machine, or may be hand engraved so that a design or pattern is impressed or engraved into the barrel or casing jA It is not essential in carrying out my method that the tubingfirst be cut into the desired lengths for individual barrels, but it may be preferred where the ordinary chasing machinery is used. The tubingcan be subjected to method in the long lengths in which it is supplied from the tubing factory, so that the'pencil barrels can be made automatically from the original lengths, each step of the method being carried out as the same progresses so that the finished pencil. barrels will be complete at the'end of the operation. p v

If it is desired to impressthe barrel A with a design such as B, illustrated in Figure 3, by means of the ordinary chasing machine where the :design is applied to the barrel by pressure, the tubing or barrel A is passed through the chasing machine so chine may be of anydesired w-ell known con- 7 struction, Obviously, the design B can be engraved by an engine turning machine, or-

any other-design applied by such a machine or the design B may be hand engraved, par ticularly that part including the scrolled lines which make up the particular design on the pencil barrel.

After it has been chased or engravedand it is: in the form illustrated in Figure 3, it is hen waae o e nd to form the and or tip C. The swaging of the tubing extending back and including a portionof the engraved part of the barrel so that the pattern or design is engraved over that portion which is engaged by the fingers in using the pencil. The extreme forward end of the appear as it is illustrated in the drawing in Figure 1 and it will be readily apparent that the extending of the design overlthegripping portion of the barrel provide's'an advantage not only in giving a better holding surface for the fingers, but in the appearance of the pencil barrel, particularly by reason of the fact thatthe design" converges toward the point in a uniform manner and thereby makes a design much more attractive on the pencil casing or barrel than if it stopped abruptly at a point in advance of the curved portion which tapers into the writing'tip.

Pencil barrels have been made heretofore with the engrav ng extending over the writing tip or end of the same, but'these have either been made by hand engraving or by engine turning machines; which is a slow process of operation and cannot be extended as far over the writing end as is carriedout in my method. Hand engraving is very expensive and the engine turning isafslow method of engraving and decorating the barrels. lily methodis very rapid and bymeans.

of suitable die wheelsin the ordinary chasing machines the pattern or'design can be transferred unto the barrel very rapidly. The curve or taper formed on the writing end of the pencil by swaging it to form a writing 'tip decreases the'di'ameter toward the pointand for these reasons it. is imprac ticable to use a machine forengravingfor chasing the pencilbarrel after itis formed and swagedfwitlrtl e finished writing tip. The engine turning machines now-in use will engrave'over the writing end a short distancefbut are not practical 'to carry the pattern far down on the writing tip 'of-the pencil barrel. Itis also'very important to consider that in these engine turning machines the pattern is engravedby a diamond point and is usually made up by'a combined longitudinal and transverse movement and each line is made by' a separate andzdistinct. stroke of the machine which accounts for the time that is required-to cha se eaehbarrel. My invention obviates all of these undesirable details and permits the pencil barrels to berrapidly chased or engraved with pat terns or designs and not swaged in the regular ordinary well known manner, making a saving of more than half of the time required tO 'fiDiSlI the pencil barrel and pro-- riding a design which is even more attractive than where the design is applied by an my inventioinl desire to have it understood I that this isonly illustration and that the invention can be carried out and applied to uses other than those above set forthwithin the scope of the following claims.

Iclaim: v

1. A method of making pencil barrels consisting of applying a pattern to'the outer surface of the barreland swaging the barrel to forma writing tip with the pattern or design extending over the writing end of said barrel. a

'2. A method of making pencil barrels consisting of applying a pattern of an ornamental design to a portion oi the-barreland swaging the barrel over the design to cause the design to extend over the writing end of the barrel and converging uniformly toward the writing tip. V i

3. A method of making pencil barrels consisting in engraving a pattern on the surface of straight tubing and swaging the tubing to a point'ezrtending into'the pattern so that the pattern extends over the finger gripping surface o't'the pencil barrel in the completion of the swagin finger gripping surface.

The method of making pencil barrels consisting in applying a design to straight tubing of approximatelythe Silll'ic contour throughout its length and then 'swaging the tubing into a. writing point with the design extending over the swaged portion and con verging toward the writing tip. v p 5. The method of making pencil barrels consisting in engraving thetubing on its outer surface and in swaging over the engraved portion to'form a writing tip on the tubing with the engraving extending along said writingtip.

' HoWARn L riso Eel operation to form a

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