US101344A - Improvement in pencil-cases - Google Patents

Description

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WILLIAM N. BARTHOLOMEW, OF NEWTON CENTRE, MASSACHUSETTS, ASSIGNOR TO JOSEPH RECKENDORFER, OF NEW YORK CITY.'

Letters Patent No. 101,344, dated lllwrch 29, i870.

IMPROVEMENT IN PENCIL-CASES.

The Schedule referred to in thse Letters Patent and making part oi the same To whom. it Imay concern:

Be it known that I, WILLIAM N. BAnrHoLoMnw, of Newton Centre, county of Middlesex and State of Massachusetts, have invented a new and Improved CombinedPoint-Protector, Extension-Piece, and Lead- Iencil, of which the following is a specification.

Considerable inconvenience is experienced in carrying the ordinary lead-pencil in the pocket. If the pencil be of the usual length itis apt to be in the way, andA to project from the pocket, if it be shortened it cannot be conveniently held in the hand and used for any length oi' time, and atl all times the lead point is not only liable to be broken, but also to tear or otherwise injure the pocket.

The object ot' my invention is to remedy these difficulties, .and to this end I combine with a pencil of suitable length, considerably shorter than the ordinary lead-pencil, a tubular stem of metal or other material in which the pencil is inserted, and which will form either an extension piece or a point-protector, as desired. The pencil to be used with this tubular stem is formed s0 as to have a double taper, that is, to taper toward bot-h ends, so that either end ot the pencil when inserted in the stem may be wedged and held securely therein.

The manner-iu which my invention is or may be carried into effect will be readily understood by refererence to the accompanying drawings.

Figures 1, 2, 3, 4 represent central longitudinal sections of the pencil and tubular stem made vin accordance with my invention.

In gs. l and 2` the double taper to the pencil is formed on the wooden sheath. The greatest diameter of the sheath `is at a point, a, quite near the head or that cud of the pencil which-is not intended to be sharpened, and the pencil tapers thence in vboth directions, thus producing a double tapered head.`

The short tapered portion between a andb is. intended to be inserted in the tubular stem (l when the pencil is required for nseasa shown in fig. 1, in which position the combined length` of the pencil and stem is quite equal to thatof an ordinal)T pencil, and suficient to allow the pencil to be easily held between the fingers and supported by the hand.

The longer tapered portion between a, and c is intended to be inserted in thestem when the pencil is no longer required for use, as seen in g; 2, in which position the pencil is of but little length, being received forthe most part in the tubular stem, which now, instead of forming an extension piece, becomes .a point-protectorl v The tubular stem has an internal diameter about equal to the diameter of the pencil at a., so that theand held tightly iu the tubular stem whichever end be inserted therein.

It will be understood that it is by no means neces` sary that the pencil should taper continuously between (c and l) and a and c; on the contrary, only such portion of the pencil need be tapered between these points to produce a double incline or taperv to tit and wedge in the tube, while the other parts oi' the pencil may be cylindrical or other ordinary shape.

In figs. 3 and 4 the `double taper is formed not upon the sheath itself, but upon a head, h, of bone, India rubber, or other material, attached to one end of the pencilin any suitable manner, either tting upon a tenon, as seen in iig. 3, or being screwed upon the pencil end, as seen in g'. 4. The body of the pencil in this case is of the usual cylindrical or polygonal form. v

Instead of using a separate head, h, one end of the wooden sheath may be made in the same form, and to answer the same purpose as the head, as I have already indicated.

From the foregoing it Will be seen that all that is needed to adapt the pencil for use with theextension and protecting-tube, is that it should be slightly bulging near one end so as to form what I have termed the double taper, by which the pencil can be firmly held to the tube, whether the point be inserted in the tube for the purpose of protection or withdrawn therefrom and turned outward for use in writing, &c.

Having now described my invention and the mauner iu which the same ius or may be carried into effect,

What I cla-im, and desire to secure by Letters Patent, is

1. A combined point-protector, extension piece, and lead-pencil consist-ing of an extension and point-protecting tube in a combination with a lead-pencil furnished at or near one end with a double tapered or iuclined head adapted to be wedged and held in the tube Whether the point ot the pencil be turned out from or inserted in said tube, substantially as shown and set forth. v

2. A lead-pencil, the wooden sheath of which is formed with a double taper, so as to admit of the same being wedged and held in the extension and protecting-tube in which either end of the pencil may be inserted, substantially asdescribed. In testimony whereof I have signed my name to this specification before two subscribing Witnesses.

WM. N. BAR'IHOLOMEW.

Witnesses:

JOHN .1). Lone, EDWARD W. BRorLELD.

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