US1737798A - Pencil holder for leads of different kind, thickness, or color - Google Patents

Description

Dec. 3, 1929.

A. KINZINGER PENCIL HOLDER FOR LEADS OF DIFFERENT KIND, THICKNESS, 0R COLOR Filed Dec, 28, 1927 lim] :Unirse stares' PATENT ori-ics ADOLF KINZINGER, F PFORZHEIM,

PENCIL HOLDER FOR LEADS 0F DIFFERENT KIND, THIQKNESS, 0B COLI .Application led December 23, 1927. Serial'lo, 243,118.

As for persons, who use for writing and drawing pencils or leads of dilerent kind or different thickness or color, it is very convenient to have all these leads united in one single holder and arranged so that any desired lead can be made to project through the conical point of the casing, a number of mechanical arrangements have been invented, whichsolve this problem in a more or less perfect manner. All such arrangements, which have Bbeen hitherto proposed, present the inconvenience that the mechanism is complicated and, this mechanism being restricted to a very small `place so that the several elements ofthe saine cannot be very strong, the function of the instrument becomes defective after a short time of use and the more rapidly the more diliicult it is for persons unskilledV in the art to correctly adjust the complicated mechanism iii accordance with the directions for use.

This invention relates to a encil-holder in which .leads of different kinds, hardness, thickness or colors are united so that any one of the same can be made to project from the point. The mechanism of this improved pen-- cil-holder is however so simple that the inconveniences, connected with the propelling pencils of known type are absolutely avoided. The novelty consists in that a number of iiidependent Vpencils or lead-holders are mounted in a tubular casing open at both ends, the one behind the other so that they can be removed through the open frontor rear-end of the casing, being however secured against dropping out accidentally. The means which prevent the accidental shifting of the pencils in the tubular casing, for instance when the instrument is being used, may be constructed in many different manners.

An embodiment of the invention is illustrated by way of example, in the accompanying drawing, which shows two different forms of construction of the means preventing accidental shiftin of the pencils.

Fig. 1 shows t e pencil-holder in elevation. Fig. '2 shows the front portion of the pencil-holder in elevation, partly inlongitudinalsection with a resilient brakin nose.

Fig. 3 is a longitudinal section through the 5o pencil-holder.`

Fig. 4 shows one of the pencils with'elastic sliding walls.

Fig. 5 is a cross section on line 5-5 of Fig. 4.

In the tubular casing a, which is shown as being of octagonal cross-section, several pencil holders l5 are inserted, the one behind the other, each pencil holder comprising a guide-tube c for a lead d. The casing a might'be of hexagonal, oval or any other desired crossfsection, and it can be made of 60' metal, wood, artificial horn, celluloid or other suitable material. Neither the individual pencil-holders nor the guide-tube c for the lead d nor a mechanical propelling device e, which might be arranged in the pencilholder b for pushing the lead d, forms the object of this invention. Anyv mechanisms of known type, for example a screw-mechanism, may be used for holding, guiding and propelling the lead d. j

The pencils b vare located in the casing a all in the same direction so that the leads d point to the front-end of the instrument.

In Fig. 3 three pencilsare shown, but any other number' of pencils two, ve, four or 75 more may be located in the 'casing a, all these pencils being preferablyof the same length. The total len th of allthe pencils together when inserte the one in the vother is such that the lead of the pencil b which has actual- 80 ly to be used, p1 .ijects from the point of the casing, the rear .end of the rearmost pencil holder being either flush with the rear-end of the casing Ya or projecting from the same very little so that it is securely held in the casin a.

In ig.Y 3 the rear end of the rea-rmost pencil b is flush with the rear-end of the casing a, while in Fi 1 it slightly projects from vthe rear-end o the casing.

To prevent accidental shifting, specially when the instrument is being used for writing, the pencil holders b are securely held in the casing a so that they can slideA only under stronger pressure, special holding means be- 95 ingA provided to ensure that the resistance against, accidental displacement remains uniform.

Figs.; and 2 show as holding means a brake-noseg, controlled by a spring f and 10 clip z' may be fixed on the spring f of the rear holding device.

Figs. 3 to 5 show another means for preventing accidental shifting of thepencil holders b. Several of the faces of the rear-portion la of each pencil holder have each a longi. tudinal slot Z. these faces m being bulged outward, as shown in Fi 5, so that they are pressed elastically against the inner surface of the casing a. The friction-resistance, produced in this manner,` prevents accidental shifting of the pencil holders during writin The outwardly bulged faces m are pre erably arranged on two opposite sides of the pencil holder so that the lead d is always situated in the central line of the casing.

When the middle pencil holder b has to be used the front-pencil holder has to vbe removed throughthe open front end of the casing and to be inserted into the open rear-end of the casing a with a certain pressure and pushed into the casing a, until the middle pencil holder Z) which is now -the front pencil holder, has assumed the correct writing position.

When the rear-pencil holder-has to be used for writing, the front-pencil holder is slightly pushed back so that the rear-pencil holder projects from the rear-end of the casing, and can be pulled out to be inserted into the frontend of the casin a so that it pushes back the other pencil ho ders in the casing. When there are more than three pencil holders in the casing a, any of the pencil holders may be brought into the position for writing'by removing the front-pencil holder, inserting the same into the rear-end of the casing, removing the next followin pencil holder which is then the front pencll' holder, inserting the same into the rear-end of the casing and so forth until the desired pencil holder is in the position for Writing.

In the 'bottom-plate of each pencil holder b a hole n is arranged through which the point of the next following pencil holder projects so that the projecting lead d is protected against damaging. y

I claim 1. An instrument for writing, comprising a tubular casing of polygonal cross-section open at both ends, a number of propelling ing, a bottom plate closing the casing of the propelling pencil and having a large hole to allow the point of the lead of the next following propelling pencil to occupy said vacant space, and a resistance on each propelling pencil to prevent accidental shifting of the propelli-ng pencil in said casing.

2. An instrument for writing as specified in claim 1, in which each pencil holder has a resilient sliding wall designed to serve as resistance means.

3. An instrument for writing as speciiied in claim 1, in which each pencil holder has a resilient sliding wall designed to serve as resistance means said sliding wall being bulged outward and having a longitudinal slot in the bulged out portion.

4. An instrument for writing as specific in claim 1, in which each pencil holder comprises a resilient sliding wall having Vseveral longitudinal slots and being bulged outwards at either sideof each slot.

In testimony whereof I alix my signature.

ADOLF KINZINGER.

pencils placed one behind the other in said casing and consistin each of a casing and of a propelling mec anism of known type for propelling a lead said mechanism leaving a vaca-nt portlon at the rear end of said cas-

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