US2494202A - Retractable polypointed writing utensil - Google Patents

Description

IN V EN TOR.

H. M. REM

RETRAcTABLE-PoLY-POINTED WRITING UTENSIL Filed Juri@ 9, 1948 Jan. l0, 95

Patented Jan. 10, 1950 UNITED srarss PATENT POLYPOINTED WRITING RETRACTABLE OFFlCE 1 Claim.

The present invention relates to improvements in poly-pointed writing utensils, such as multicolor pens and pencils and, more specifically, to an improvement over vtllamulti-color writing utensils described in my co-pending patent application. v

By my co-pending patent application I have discussed multi-color pens and pencils v Whose pointed extremities or writing nibs are stationary. It is sometimes desired to cover the writing nibs while the device is not in use. While this can be accomplished by means ofa removable cap, I prefer to use an outer barrel into which all the writing nibs can be retracted simultaneously. Multi-color pencils, having for each color a separate mechanical element which may be projected from the pencil and exposed for writing while similar elements for other` colors not in use remain concealed, are Well known. They have, however, the disadvantage that said separately projectable and retractable elements necessarily must be of such small dimensions that they can be damaged easily and are subjected to excessivey of a writing utensil of the character described l which is simple in construction and use, handy, light in weight and of a comparatively small size, but sturdy, durable and Well adapted to withstand the rough usage to which devices of this type frequently are subjected.

With the foregoing and other objects in View which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

In the accompanying drawings the preferred forms of the invention have been shown.

In said drawings:

Figure 1 is a top plan view of a two-polo embodiment of my invention;

Fig. 2 is a top plan view oi a three-color embodiment of my invention;

Fig. 3 is a top plan view of a four-color embodiment of my invention;

Fig. 4 is a longitudinal sectional view of a preferred embodiment of my invention; y

Fig. 5 is a cross-sectional View on the line 5-5 of Fig. 4;

Fig. 6 is a cross-sectional View on the line 6 of Fig. 4;

Fig. '7 is a fractional side view of a detail; and

Fig. 8 is a fractional longitudinal sectional View of a modication of my invention.

In the drawing the numeral I denotes an outer barrel or stock on whose lower end portion is slidable a cap 2 to which is secured a clip 4. A shaft 3 extending into the outer barrel I is secured to the cap 2 by means ci a screw 5' which has a knob-shaped head 5. A tubular member E which is provided with a curved slot I0, and a threaded head portion 'I is secured by the latter to an internally threaded portion of the outer barrel I. An inner barrel 8 has an internally threaded collar portion 9 extended from its bottom, and the upper extremity of the shaft 3 is screwed into the collar portion 9. A pin II extends laterally from the shaft 3 and engages the slot I i), and a spring i2 is interposed between the pin II and an annular shoulder I3 which is welded or otherwise secured to7 or formed as a unit with the outer barrel I. Thus by turning the cap 2 relative to the outer barrel in one direction, the latter is slid over the inner barrel through the action of the spring I2 as is indicated in dash-and-dotted lines in Fig. 4, While by turning the cap 2 in the opposite direction relative to the barrel I, the parts 3 and 8 are brought into a position relative to the barrel I as is shown in full lines in Fig. 4.

A plurality of internally threaded tubular members I4 are extended into the uper portion of the inner barrel 8 and are rotatable therein. Each member I4 has an annular groove ZI. The grooves 2i are equally spaced from the extremities of the members I 4; and a cross-pin 20, which is extended through and secured to the inner barrel 8 engages the grooves 2 I, so that the members I4 cannot vbe moved axially relative to the inner barrel 8. Leads I5 oi diiierent colors are extended from above into the threaded bores I'I of the members I4. A spindle I5 is screwed into each bore I'I and is provided with a head I8 that has a peripheral vertical groove 3d (Fig. 6). A rail I9, which is cross-shaped in cross-section in the instance of the four-color pencil shown, but which may be Y-shaped in the case of a three-color pencil, or rectangular in cross-section in the case of a two-color pencil, is secured to the bottom of the inner barrel 8 and is in slidable engagement with the grooves 30 of the heads I 8 of the spindles I8 so that the latter cannot be revolved. The outer side of that portion of each member I4 which projects beyond the inner barrel 8 is knurled for facilitating a turning of the members I4. By turning the members I4, the spindles I6 are screwed more or less into the members I4, so that the leads I5 can be pushed toward the upper extremities of the members I4.

In the case of a multi-color pen (Fig. 8) the same outer barrel having an internal annular shoulder I3 and the same shaft 3 etc. can be used as in the oase of the modification of Figs. 4 to 7.

The inner barrel 22 has a collar 23 which is similar to the collar 9in Fig. 4, but to its upper extremity is secured, by screwing or the like, a hollow tip 24. A plurality of cartridges 25, each of which terminates into a writing nib 2E, have their base portions extended into the tip 24` A tubular lbody 21 is secured to the base portion of each cartridge 25 and is extended into the inner barrel 22. The parts 25 and 2l contain writing fluids, such as ink, of different colors.

Since certain changes may be made in the above article and diiferent embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scope of the tremity a head whose periphery is grooved, an

upright rail being secured to the bottom of said inner barrel and being in slidable engagement with a peripheral groove in the head of each spindle, an outer barrel in which said inner barrel is slidable, and means for moving said inner ybarrel relative to said outer barrel, leads of different colors being slidably extended into said tubular members.

HENRY M. REM.

REFERENCES CITED The following references are of record in the le of this :patent:

UNITED STATES PATENTS Number Name Date 2,428,854 Randolph Oct. 14, 1947 FOREIGN PATENTS Number Country Date 11,826 Germany Dec. 17, 1880

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