US2272139A

US2272139A - Writing instrument

Info

Publication number: US2272139A
Application number: US361505A
Authority: US
Inventors: Burton M Tapner
Original assignee: Welsh Manufacturing Co
Current assignee: Welsh Manufacturing Co
Priority date: 1940-10-17
Filing date: 1940-10-17
Publication date: 1942-02-03
Anticipated expiration: 1959-02-03

Description

Fe b. 3, 1942.

B. M. TAPNER WRITING insmummm Filed Oct. 17, 1940 IN V EN TOR. I fizz/2 o 61 A TTORNEYS.

I usually performed'b'y for the containing of a Patented Feb. 3, 1942 UNITED] STATE s PA ENT] OFFICE pwarrmo mmmm 7 Burton M. Tapner,

to Welsh Manutactnrin tion of Rhode Island North Scitnate, It. I.,'assignor g Company, a corporamman October 1:, 1940, Serial No. 361,505

This invention relates to-a writing instrument, more particularly a mechanical pencil in which there is a mechanical movement for manipulating thelead. I e w r The invention has for one of its objects to provide a novel appearing pencil especially adapted for advertising by the visible carrying of merchandise or-p'rinted matter relating thereto.

Another objectof the invention is to provide an arrangement whereby a liquid may be maintained within av transparent tubular the length of the pencil.

Another, object of the invention is to provide a 7, pencil which will attract attention by reason of g the presentation of the appearance of the mechanical action operating in a lubricant. with these an'dother objects in view,

liquid in. only a part ofthe in-- transparent tubes. the inner tube being scarcely visible through the oil, thus giving this attracting appearance to' the pencil which is very desirable when-the pencil is used for advertising purposes and yetv providing a pencil which is usable and cannot leak; and the following is a more detailed description 'of-jthe presentembodiment ofthis invention,illustrating the preferred means by which these advantageous results may be accomplished:

With reference. to the drawing, I- have provided an outer transparent, tubular member Ill transparent barrel that the.

. the tubes l0 and vention consists of certain novel features'of construction, as will be.

In the accompanying drawing:

Fig. l is a central sectional view through the pencil constructed in accordance with this invention;

Fig. 2 is a Fig. 3 is a fragmental sectional view of the end portion of a writing instrument, modified differentlyfrom that shown in Figs, 1 and 2;

Fig. 4 is a sectional view of the cap used in Fig. 2; Y

Fig. 5 is an end view thereof on line 5-5 of Fig. 4. Transparent pencils; have been provided in which the working parts of the pencil may be viewed through a transparent tubular {barrel member; and in order to further enhance the interest in the-mechanical action of aupencil, I have conceived of placing merchandise within this transparent barrel either of solid or liquid form and when the latter is used almost filling the same but leaving suflicient air so that a bubble will be apparen from one position to another, and if oil is displayed giving the appearance that the mechanical view similar to Fig. 1 of a modified action of the pencil is operating in oil. However,

if liquid were placed within the ordinary pencil, the same" would leali' ;through- ,the mechanical action, and the pencil could not be used. Accordingly, I have arranged to-seal oil between two v more fully. described, and particularly pointed out in the appended claims.

upon rocking the pencil ed generally of Celluloid orsome suitable material and also an inner-transparent tubular member'of a like suitable material. Theouter member is tapered ,as at l2. so as to come in closer proximity to the inner member H at the point end, while a sealing means It consisting of some-suitable material, but preferably one which may be cemented,

welded or amalgamated in some way to each of concentric spaced relation. At the opposite end of the instrument,

be displayed, such asthe the two tubes ill and II and sealed in position by means of a cap l6 closing the outer tu The mechanical point and movement designat- I1 is provided with a friction collar l8 which isi'orced into the tube llto have a friction-tight fit therewith so as to be relatively fixed thereto, while the point I! is rotatable with reference to the collar It. A helically-slotted tube 20 is fixed to the collar", while a longitudinally-slotted tube 2| is attached to and is movable with thepoint rier mechanism is manipulated by means of the relative movement of the

portions

20 and 2| for movement of the leadlongitudinally ing instrument.

'Bothof the tubes I0 and II beingtransparent I readily shows the mechanical movement of the writing instrument throughvthem and through the merchandise, if example of which is good quality oil, and assists the mechanparts of the pencil appear to be I operating in oil. If the merchandise-is not transparent, the inner a cap 25.

tube may be of anymaterial whether or not transparent. a

In some instances, instead of the construction iliustratedin Fig. l, the construction may be varied. For instance, in Fig. 2, I haveillustrated (see F18. 4),,which is. provided with a circular slot 26 to receive the tubular member I I within the slot, while the tubular member I! fits II, is provided at'this taper so as to provide a liquid-tight joint between the tubes and also hold the, two members in desired the -mechanical movement housing tube ll isclosed by means of a plug l4, and the material to liquid I5, is placed between Other merchandise such v as sugar, flour, or salt may be used instead of the end l9. .Suitable lead-car- H of the writit is also transparent, one V over the outer surface 21 to abut the flange 28 of the cap and by reason of the telescoping portions of the cap and the barrels, there is a sealing of this end of the instrument so that no liquid can communicate or leak from the space between the barrels.

As shown in Fig. 3, a still difierent arrangement is provided. In this case, the inner tubular member II is provided with a plug H as heretofore shown, while the outer member is closed by means of an erasure-containing plug 30 which fits within the tubular member III and about the tubular member ll, while being provided with a recess 3| to contain an erasure 82. A ring 83 is fixed to the plug 30 to form a flange which limits the insertion of the plug into the space between the barrels while providing on its outer surface 34 an arrangement for mounting a removable cap 35 which may be pulled from this position for the sealing of the space between the tubes Ill and exposing the erasure for use.

In Fig. 2 I have illustrated a modification of II by means of a cylindrical plug 36 in the ends of the member III which provides for the telescopingly mounting or the tubular member 31 thereover in which tubular member there is a

bore

38 and 39, the latter of which retains the collar l8 of the point end movement designated generally I1 and with the parts numbered correspondingly with the same parts shown in Fig. 1.

In this case, the collar I8 is mounted within a continuation of the outer tubular member and projects within the inner tubular member rather than being held by its own friction with the inner tubular member as heretofore.

From the above it will be apparent that any merchandise or advertising copy may be contained between the two tubes which are so sealed that even liquid does not reach the mechanism and consequently cannot leak through the mechanism, and when oil is used, there is provided the appearance that the mechanism is operating in oil.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible.

I claim:

1. An illusion-creating device comprising concentric, transparent, tubular members positioned one within the other, means for holding the same in spaced relation and sealing the space therebetween providing a sealed chamber between said tubular members, the transparency of said members being such as to make the inner member imperceptible from a casual observation of the device, a material partially filling said space and capable of movement therein, and a mechanism housed within the inner tubular member and having movable elements thereon visible through said material.

2. An illusion-creating device comprising concentric, transparent, tubular members positioned one within the other, means for holding the same in spaced relation and sealing the space at one end of said tubular members, means for closing the outer and inner tubular members at the other end providing a sealed chamber between said members, a transparent fluid partially fllling said comprising her, and a mechanism housed within the inner tubular member and having movable elements visible through said material.

4. An illusion-creating device comprising transparent, tubular members positioned one within ,th'e foth'er, means for holding the same in spaced relation and sealing the space at one end of said tubular members, means for closing the outer and inner members at the other end providing a sealed chamber therebetween, said means including a cap positioned between the tubular members at said end and secured thereto, a transparent fluid in said chamber and a mechanism contained'within said inner tubular member having movable elements visible through said fluid.

5. An illusion-creating device comprising transparent, tubular members positioned one within the other, means for holding the same in spaced relation and sealing the space at one end of said tubular members, means for closing the outer'tubular member at the other end thereof, and means for closing the other end of the inner tubular member providing a sealed chamber in the space between said members, a transparent fluid in said chamber and a mechanism contained within said inner tubular member having movable elements visible through said fluid.

6. An illusion-creating device comprising transparent, hollow members positioned one within the other and in spaced relation to each other and with the space therebetween sealed at the ends of the members providing a sealed chamber therebetween, a transparent fluid in said chamber capable of movement therein, and a mechanism housed within the inner member and extending therefrom and relatively movable with respect to said transparent members, said mechanism having movable elements visible through said tubular members and fluid, the transparency of said fluid being such as to make the inner member imperceptible from a casual observation when viewed through said outer member and fluid.

7. A unit part or an illusion-creating device comprising elongated transparent members positioned in spaced relation one within the other and with the space adjacent to the ends thereof sealed providing a sealed chamber therebetween, and a transparent fluid parency as to make said inner memberimperceptlble from a casual observation when viewed through the outer member, said unit part proa mechanical writing instrument and capable of housing within the inner member mechanism of the writing instrumen BURTON M. TAPN ER.